Pub Date : 2011-01-25DOI: 10.1177/0095244310393930
Bulent Yildirim, R. F. Yükseler
In this study, the effect of compressibility on the nonlinear buckling of the simply supported polyurethane spherical shells subjected to an apical concentrated load is presented. The problem is strongly nonlinear both physically and geometrically. Since the closed form solution of the corresponding algebraical and differential equations is not possible, numerical methods are used unavoidably. The governing equations of the problem are converted to algebraical difference equations via the finite difference method and the obtained algebraical equations are solved numerically by using the Newton— Raphson method. Several numerical experiments corresponding to the various values of a thickness parameter, a depth parameter and a material constant related with the compressibility of polyurethane are performed and the force— apex deflection curves are drawn. Concluding remarks pertaining to the effect of the variation of the material constant related with the compressibility on the buckling loads and buckling deflections of the simply supported polyurethane spherical shells, subjected to an apical load, with various thicknesses and depths are presented.
{"title":"Effect of Compressibility on Nonlinear Buckling of Simply Supported Polyurethane Spherical Shells Subjected to an Apical Load","authors":"Bulent Yildirim, R. F. Yükseler","doi":"10.1177/0095244310393930","DOIUrl":"https://doi.org/10.1177/0095244310393930","url":null,"abstract":"In this study, the effect of compressibility on the nonlinear buckling of the simply supported polyurethane spherical shells subjected to an apical concentrated load is presented. The problem is strongly nonlinear both physically and geometrically. Since the closed form solution of the corresponding algebraical and differential equations is not possible, numerical methods are used unavoidably. The governing equations of the problem are converted to algebraical difference equations via the finite difference method and the obtained algebraical equations are solved numerically by using the Newton— Raphson method. Several numerical experiments corresponding to the various values of a thickness parameter, a depth parameter and a material constant related with the compressibility of polyurethane are performed and the force— apex deflection curves are drawn. Concluding remarks pertaining to the effect of the variation of the material constant related with the compressibility on the buckling loads and buckling deflections of the simply supported polyurethane spherical shells, subjected to an apical load, with various thicknesses and depths are presented.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"88 1","pages":"167 - 187"},"PeriodicalIF":1.7,"publicationDate":"2011-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78588275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-25DOI: 10.1177/0095244310397740
S. C. Peterson, Lei Jong
An aqueous dispersion of vital wheat gluten and styrenebutadiene rubber was subjected to high-shear mixing in an attempt to reduce the aggregate size and enhance filler—matrix interactions with the goal of improving contributions of the reinforcement to the overall composite properties. Composites were formulated using 10—40% vital wheat gluten by mixing aqueous suspensions of the gluten and rubber, then freeze-drying and compression molding the resulting composite. Rheological experiments indicated that vital wheat gluten reinforced the rubber up to a factor of roughly 30. Subjecting the gluten suspension to high shearing reduced the particle size from approximately 5.2—4.5 µm, and 16 min was the optimum shearing time since shearing the dispersions longer did not result in any additional size reduction. Composites with 10% vital wheat gluten have good potential in applications requiring high elasticity since they were equal to or better than the carbon black control in terms of Young’s modulus, percent elongation, and toughness. Isolated vital wheat gluten was studied in order to determine its relative merit as one of the two reinforcing components of wheat flour (the other being wheat starch), and vital wheat gluten’s reinforcing ability was a factor of 10 weaker than wheat flour, indicating that wheat starch is a much more effective biomaterial filler in terms of rigidity, but vital wheat gluten may be more suitable for applications requiring more elasticity.
{"title":"Effect of Shearing on the Reinforcement Properties of Vital Wheat Gluten","authors":"S. C. Peterson, Lei Jong","doi":"10.1177/0095244310397740","DOIUrl":"https://doi.org/10.1177/0095244310397740","url":null,"abstract":"An aqueous dispersion of vital wheat gluten and styrenebutadiene rubber was subjected to high-shear mixing in an attempt to reduce the aggregate size and enhance filler—matrix interactions with the goal of improving contributions of the reinforcement to the overall composite properties. Composites were formulated using 10—40% vital wheat gluten by mixing aqueous suspensions of the gluten and rubber, then freeze-drying and compression molding the resulting composite. Rheological experiments indicated that vital wheat gluten reinforced the rubber up to a factor of roughly 30. Subjecting the gluten suspension to high shearing reduced the particle size from approximately 5.2—4.5 µm, and 16 min was the optimum shearing time since shearing the dispersions longer did not result in any additional size reduction. Composites with 10% vital wheat gluten have good potential in applications requiring high elasticity since they were equal to or better than the carbon black control in terms of Young’s modulus, percent elongation, and toughness. Isolated vital wheat gluten was studied in order to determine its relative merit as one of the two reinforcing components of wheat flour (the other being wheat starch), and vital wheat gluten’s reinforcing ability was a factor of 10 weaker than wheat flour, indicating that wheat starch is a much more effective biomaterial filler in terms of rigidity, but vital wheat gluten may be more suitable for applications requiring more elasticity.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"10 1","pages":"207 - 220"},"PeriodicalIF":1.7,"publicationDate":"2011-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80280690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-25DOI: 10.1177/0095244310393927
O. Al-Hartomy, F. Al-Solamy, A. Al-Ghamdi, M. A. Ibrahim, N. Dishovsky, F. El-Tantawy
The composites based on polyvinyl chloride polymer matrix filled with foliated graphite/nickel nanoparticles with remarkable and reliable pressure sensitivity was successfully fabricated. The microstructure of the nanocomposites was characterized by means of scanning electron microscopy. The effect of graphite/nickel content on the thermal stability of polyvinyl chloride/graphite/nickel nanocomposites was studied via thermal gravimetric analysis. Thermal conductivity and glass transition temperature were evaluated as a function of graphite/nickel content also. The resistivity dependence on applied pressure was tested. It was found that the polyvinyl chloride/graphite/nickel nanocomposites display a high sensitivity to pressure with good repeatability. The nanocomposites obtained may be used as pressure sensors.
{"title":"Pressure Sensors Based on Polyvinyl Chloride/Graphite/Nickel Nanocomposites","authors":"O. Al-Hartomy, F. Al-Solamy, A. Al-Ghamdi, M. A. Ibrahim, N. Dishovsky, F. El-Tantawy","doi":"10.1177/0095244310393927","DOIUrl":"https://doi.org/10.1177/0095244310393927","url":null,"abstract":"The composites based on polyvinyl chloride polymer matrix filled with foliated graphite/nickel nanoparticles with remarkable and reliable pressure sensitivity was successfully fabricated. The microstructure of the nanocomposites was characterized by means of scanning electron microscopy. The effect of graphite/nickel content on the thermal stability of polyvinyl chloride/graphite/nickel nanocomposites was studied via thermal gravimetric analysis. Thermal conductivity and glass transition temperature were evaluated as a function of graphite/nickel content also. The resistivity dependence on applied pressure was tested. It was found that the polyvinyl chloride/graphite/nickel nanocomposites display a high sensitivity to pressure with good repeatability. The nanocomposites obtained may be used as pressure sensors.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"106 1","pages":"137 - 153"},"PeriodicalIF":1.7,"publicationDate":"2011-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80393857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-25DOI: 10.1177/0095244310393929
M. Saboktakin, A. Maharramov, M. Ramazanov
In situ polymerization of aniline was carried out of superparamagnetic (Fe3O4) nanoparticles to synthesize the middle molecular weight HCl-doped polyaniline/polyanitroaniline nanocomposites. The HCl-polyaniline/ polyanitroaniline/Fe3O4 nanocomposites have been synthesized with certain composition of Fe3O4 in the composite. Thus, the synthesized composites have been characterized by infrared spectroscopy and X-ray diffraction. The morphology of these nanocomposites was studied by scanning electron microscopy. Further, the conductivity properties have been investigated in the frequency dependence of conductivity. The presence of polarons and bipolarons is made responsible for frequency dependence of conductivity. Cole—Cole plots indicate clear shift in the distribution of relaxation times as the wt% of Fe3O4 in the polymeric matrix changes. These nanocomposites show almost symmetric semicircles of Cole—Cole plots indicating the Debye-type relaxation in their polarization response.
{"title":"Synthesis and Characterization of Superparamagnetic Polyaniline Nanocomposites as Conductive Shields","authors":"M. Saboktakin, A. Maharramov, M. Ramazanov","doi":"10.1177/0095244310393929","DOIUrl":"https://doi.org/10.1177/0095244310393929","url":null,"abstract":"In situ polymerization of aniline was carried out of superparamagnetic (Fe3O4) nanoparticles to synthesize the middle molecular weight HCl-doped polyaniline/polyanitroaniline nanocomposites. The HCl-polyaniline/ polyanitroaniline/Fe3O4 nanocomposites have been synthesized with certain composition of Fe3O4 in the composite. Thus, the synthesized composites have been characterized by infrared spectroscopy and X-ray diffraction. The morphology of these nanocomposites was studied by scanning electron microscopy. Further, the conductivity properties have been investigated in the frequency dependence of conductivity. The presence of polarons and bipolarons is made responsible for frequency dependence of conductivity. Cole—Cole plots indicate clear shift in the distribution of relaxation times as the wt% of Fe3O4 in the polymeric matrix changes. These nanocomposites show almost symmetric semicircles of Cole—Cole plots indicating the Debye-type relaxation in their polarization response.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"35 1","pages":"155 - 166"},"PeriodicalIF":1.7,"publicationDate":"2011-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87426412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.1177/0095244310385436
K. Xiong, Lianshi Wang, Anqiang Zhang
EPM-graft-methyl methacrylate and acrylonitrile (EPM-g-MAN) was synthesized by graft copolymerization of methyl methacrylate (MMA) and acrylonitrile (AN) onto ethylene—propylene bipolymer (EPM) using the method of suspension polymerization. A novel engineering plastic with high impact strength, AEMS, which shows excellent resistance to weatherability and yellow discoloration and aging properties, were prepared by blending EPM-g-MAN with styrene—acrylonitrile (SAN) resin. The influence of the suspension grafting copolymerization technologies, including monomer ratios, EPM ratios, initiator content on monomer conversion ratio, grafting ratio, grafting efficiency, and the impact strength of AEMS, were investigated. The result showed that the optimized reaction conditions were obtained when the mass ratio of AN/MMAAN(fAN) was 15 wt%, the mass ratio of EPM/(EPM + MMA-AN) was 60 wt%, and the mass ratio of BPO/(EPM + MMA-AN) was 0.6 wt%. When the EPM/ AEMS mass ratio was 25 wt%, the notched Izod impact strength of AEMS reached 55.9 kJ/m2. DSC and DMA analysis showed that the compatibility of EPM-g-MAN and SAN resin improved when the grafting chain polarity was appropriate. Transmission electron microscopy analysis showed that EPM phase was the near continuous phase in the shape of bead string with diameter of about 0.15 μm and had good compatibility with SAN resin. Scanning electron microscopy analysis indicated that AEMS fracture surface appeared ‘root beard’ morphology. These phenomena indicated that the toughening mechanism was shear yielding of matrix, which endowed AEMS with remarkable toughness.
{"title":"Suspension Grafting Copolymerization of EPM-g-MAN and Its Toughening Effect on SAN Resin","authors":"K. Xiong, Lianshi Wang, Anqiang Zhang","doi":"10.1177/0095244310385436","DOIUrl":"https://doi.org/10.1177/0095244310385436","url":null,"abstract":"EPM-graft-methyl methacrylate and acrylonitrile (EPM-g-MAN) was synthesized by graft copolymerization of methyl methacrylate (MMA) and acrylonitrile (AN) onto ethylene—propylene bipolymer (EPM) using the method of suspension polymerization. A novel engineering plastic with high impact strength, AEMS, which shows excellent resistance to weatherability and yellow discoloration and aging properties, were prepared by blending EPM-g-MAN with styrene—acrylonitrile (SAN) resin. The influence of the suspension grafting copolymerization technologies, including monomer ratios, EPM ratios, initiator content on monomer conversion ratio, grafting ratio, grafting efficiency, and the impact strength of AEMS, were investigated. The result showed that the optimized reaction conditions were obtained when the mass ratio of AN/MMAAN(fAN) was 15 wt%, the mass ratio of EPM/(EPM + MMA-AN) was 60 wt%, and the mass ratio of BPO/(EPM + MMA-AN) was 0.6 wt%. When the EPM/ AEMS mass ratio was 25 wt%, the notched Izod impact strength of AEMS reached 55.9 kJ/m2. DSC and DMA analysis showed that the compatibility of EPM-g-MAN and SAN resin improved when the grafting chain polarity was appropriate. Transmission electron microscopy analysis showed that EPM phase was the near continuous phase in the shape of bead string with diameter of about 0.15 μm and had good compatibility with SAN resin. Scanning electron microscopy analysis indicated that AEMS fracture surface appeared ‘root beard’ morphology. These phenomena indicated that the toughening mechanism was shear yielding of matrix, which endowed AEMS with remarkable toughness.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"31 1","pages":"49 - 63"},"PeriodicalIF":1.7,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87115953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.1177/0095244310383550
K. Manoj, P. Kumari, C. Rajesh, G. Unnikrishnan
The effect of blend ratio on the cure and transport characteristics of EPDM/NBR blends has been investigated. Cure studies showed that the maximum torque values increased with increase of the percentage of NBR in the blend system. As the percentage of NBR in the blends increased, the penetrant transport has been found to be decreased. The experimental observations have been correlated with the morphology of the blends; attested by SEM photographs. The equilibrium sorption with respect to the nature of penetrant has been observed to follow the order: benzene > toluene > xylene for a given blend ratio. A minor deviation from Fickian trend has been observed for the mechanism of transport. The experimental observations have been compared with the existing theoretical models.
{"title":"Transport of Aromatic Hydrocarbons through EPDM/NBR Blends","authors":"K. Manoj, P. Kumari, C. Rajesh, G. Unnikrishnan","doi":"10.1177/0095244310383550","DOIUrl":"https://doi.org/10.1177/0095244310383550","url":null,"abstract":"The effect of blend ratio on the cure and transport characteristics of EPDM/NBR blends has been investigated. Cure studies showed that the maximum torque values increased with increase of the percentage of NBR in the blend system. As the percentage of NBR in the blends increased, the penetrant transport has been found to be decreased. The experimental observations have been correlated with the morphology of the blends; attested by SEM photographs. The equilibrium sorption with respect to the nature of penetrant has been observed to follow the order: benzene > toluene > xylene for a given blend ratio. A minor deviation from Fickian trend has been observed for the mechanism of transport. The experimental observations have been compared with the existing theoretical models.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"38 6","pages":"65 - 84"},"PeriodicalIF":1.7,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/0095244310383550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72409453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.1177/0095244310383541
S. Satapathy, G. Nando, A. Nag
Dynamic mechanical properties of blends of waste polyethylene and virgin high density as well as low density polyethylene have been investigated before and after exposure to electron beam irradiation. Effect of radiation dose on the loss modulus, storage modulus, and damping factor of the blends has been reported. An increase in relaxation temperatures on exposure to radiation has been observed. Peak broadening has also been observed on exposure to radiation. The storage modulus and loss modulus of the blends increase, while that of tan δ decreases on irradiation.
{"title":"Dynamic Mechanical Analysis of Electron Beam Irradiated Waste Polyethylene and its Blends with Virgin High Density and Low Density Polyethylene","authors":"S. Satapathy, G. Nando, A. Nag","doi":"10.1177/0095244310383541","DOIUrl":"https://doi.org/10.1177/0095244310383541","url":null,"abstract":"Dynamic mechanical properties of blends of waste polyethylene and virgin high density as well as low density polyethylene have been investigated before and after exposure to electron beam irradiation. Effect of radiation dose on the loss modulus, storage modulus, and damping factor of the blends has been reported. An increase in relaxation temperatures on exposure to radiation has been observed. Peak broadening has also been observed on exposure to radiation. The storage modulus and loss modulus of the blends increase, while that of tan δ decreases on irradiation.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"15 1","pages":"33 - 48"},"PeriodicalIF":1.7,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77052462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.1177/0095244310385435
M. Mofidi, B. Prakash
Elastomeric seals are prone to failure caused by abrasion during sliding against rough surfaces. In this research, the two-body abrasive wear of some selected sealing elastomers (nitrile rubber, hydrogenated nitrile rubber, acrylic rubber, and fluoro rubber) in dry and lubricated conditions has been studied. The influence of three different oils (synthetic ester, polyalphaolefin, and mineral oil) on the abrasive wear of the elastomers, at varying normal load and abrasive particle size, has been studied. The results show that, depending on the material, lubricant, abrasive size, and normal load, the abrasive wear of elastomers may increase or decrease in the presence of lubricants, and in most cases, the abrasive wear in the lubricated condition is higher than that in the dry condition. The influence of lubricant on the increase in abrasive wear is more significant during sliding against fine abrasives. Apart from the acrylic rubber, increase in the abrasive wear in presence of the synthetic ester is higher than those in presence of the mineral oil and polyalphaolefin.
{"title":"The Influence of Lubrication on Two-body Abrasive Wear of Sealing Elastomers Under Reciprocating Sliding Conditions","authors":"M. Mofidi, B. Prakash","doi":"10.1177/0095244310385435","DOIUrl":"https://doi.org/10.1177/0095244310385435","url":null,"abstract":"Elastomeric seals are prone to failure caused by abrasion during sliding against rough surfaces. In this research, the two-body abrasive wear of some selected sealing elastomers (nitrile rubber, hydrogenated nitrile rubber, acrylic rubber, and fluoro rubber) in dry and lubricated conditions has been studied. The influence of three different oils (synthetic ester, polyalphaolefin, and mineral oil) on the abrasive wear of the elastomers, at varying normal load and abrasive particle size, has been studied. The results show that, depending on the material, lubricant, abrasive size, and normal load, the abrasive wear of elastomers may increase or decrease in the presence of lubricants, and in most cases, the abrasive wear in the lubricated condition is higher than that in the dry condition. The influence of lubricant on the increase in abrasive wear is more significant during sliding against fine abrasives. Apart from the acrylic rubber, increase in the abrasive wear in presence of the synthetic ester is higher than those in presence of the mineral oil and polyalphaolefin.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"32 1","pages":"19 - 31"},"PeriodicalIF":1.7,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80737679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2011-01-01DOI: 10.1177/0095244310383545
I. Khan, B. T. Poh, C. Badriah
The effect of sodium sulfate as filler on viscosity, tack, and adhesion properties of Standard Malaysian Rubber (SMR 10)-based pressure-sensitive adhesive were studied. Coumarone-indene resin and toluene were used as the tackifier and solvent respectively throughout the experiment. The results show that viscosity of adhesive increases with addition of sodium sulfate. For rolling ball tack test, the distance traveled by rolling ball decreases with increasing sodium sulfate concentration indicating the increase of tack value with sodium sulfate. The distance traveled by the rolling ball decreases with coating thickness of adhesive. For cross-hatch adhesion test, result shows that maximum adhesion occurs between 30 and 40 parts per hundred parts of rubber (phr) of sodium sulfate content, an observation which is attributed to the maximum of wettability of adhesive. The 60 μm of adhesive coating thickness shows good performance of adhesion property of SMR 10-based pressure-sensitive adhesive.
{"title":"Effect of Sodium Sulfate on the Viscosity, Tack, and Adhesion Properties of SMR 10-based Pressure-sensitive Adhesive","authors":"I. Khan, B. T. Poh, C. Badriah","doi":"10.1177/0095244310383545","DOIUrl":"https://doi.org/10.1177/0095244310383545","url":null,"abstract":"The effect of sodium sulfate as filler on viscosity, tack, and adhesion properties of Standard Malaysian Rubber (SMR 10)-based pressure-sensitive adhesive were studied. Coumarone-indene resin and toluene were used as the tackifier and solvent respectively throughout the experiment. The results show that viscosity of adhesive increases with addition of sodium sulfate. For rolling ball tack test, the distance traveled by rolling ball decreases with increasing sodium sulfate concentration indicating the increase of tack value with sodium sulfate. The distance traveled by the rolling ball decreases with coating thickness of adhesive. For cross-hatch adhesion test, result shows that maximum adhesion occurs between 30 and 40 parts per hundred parts of rubber (phr) of sodium sulfate content, an observation which is attributed to the maximum of wettability of adhesive. The 60 μm of adhesive coating thickness shows good performance of adhesion property of SMR 10-based pressure-sensitive adhesive.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"68 1","pages":"85 - 95"},"PeriodicalIF":1.7,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77194070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-11-01DOI: 10.1177/0095244310376922
Mingxia Shen, Jing He, Yinxin Cui, Yaoming Zhang
To decrease the working temperature of the photovoltaic (PV) module in a solar PV system, an elastic co-film with excellent mechanical properties and adhesiveness, as well as high thermal conductivity, was fabricated based on the composition of a thermal-conductive alumina and ethylene vinyl acetate (EVA) polymer. The thermal conductivity of co-films with various particle sizes, dosage, surface properties, etc. of alumina was investigated by the laser scattering method. The scanning electron microscopic results showed that the co-film with 80 shares of submicron alumina in EVA polymer had a good interface binding. The thermal-conductive mechanism of the co-film was
{"title":"Preparation of an Al2O3—EVA Co-film and its Thermal Conductivity","authors":"Mingxia Shen, Jing He, Yinxin Cui, Yaoming Zhang","doi":"10.1177/0095244310376922","DOIUrl":"https://doi.org/10.1177/0095244310376922","url":null,"abstract":"To decrease the working temperature of the photovoltaic (PV) module in a solar PV system, an elastic co-film with excellent mechanical properties and adhesiveness, as well as high thermal conductivity, was fabricated based on the composition of a thermal-conductive alumina and ethylene vinyl acetate (EVA) polymer. The thermal conductivity of co-films with various particle sizes, dosage, surface properties, etc. of alumina was investigated by the laser scattering method. The scanning electron microscopic results showed that the co-film with 80 shares of submicron alumina in EVA polymer had a good interface binding. The thermal-conductive mechanism of the co-film was","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"23 1","pages":"499 - 516"},"PeriodicalIF":1.7,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78230222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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