Pub Date : 2010-11-01DOI: 10.1177/0095244310383547
Jianhua Guo, Xingrong Zeng, Hongqiang Li, Quankun Luo
The blends of fluororubber (FKM) and silicone rubber (MVQ) were prepared by the incorporation of fumed silica at different contents using 2,2,2trifluoroethyl methacrylate grafted silicone rubber (MVQ-g-TFEMA) as a compatibilizer. The effect of the compatibilizer content on the curing characteristics, crosslink density, mechanical properties, heat aging properties, oil resistance, and low temperature properties were investigated. The effect of fumed silica content on the mechanical properties of FKM/MVQ blends in the presence of MVQ-g-TFEMA was also studied. The dynamic mechanical analysis indicates that MVQ-g-TFEMA acts as a compatibilizer in the FKM/MVQ blends. The mechanical properties and oil resistance of FKM/MVQ blends increase with the increasing of MVQ-g-TFEMA content up to 6 phr and the heat aging properties increase with the addition of the compatibilizer. Rubber–filler interactions in the blends increase with the increasing of the compatibilizer content. Rubber–filler interaction studies show that the presence of MVQ-g-TFEMA enhances the interfacial interaction of fumed silica and rubber matrix. The tear strength and hardness increase by the incorporation of fumed silica, and the tensile strength and elongation at break increase with the addition of the fumed silica up to 30 phr in the presence of 6 phr MVQ-g-TFEMA.
{"title":"Compatibilization of Fluororubber/ Silicone Rubber Blends by the Incorporation of 2,2,2-Trifluoroethyl Methacrylate Grafted Silicone Rubber","authors":"Jianhua Guo, Xingrong Zeng, Hongqiang Li, Quankun Luo","doi":"10.1177/0095244310383547","DOIUrl":"https://doi.org/10.1177/0095244310383547","url":null,"abstract":"The blends of fluororubber (FKM) and silicone rubber (MVQ) were prepared by the incorporation of fumed silica at different contents using 2,2,2trifluoroethyl methacrylate grafted silicone rubber (MVQ-g-TFEMA) as a compatibilizer. The effect of the compatibilizer content on the curing characteristics, crosslink density, mechanical properties, heat aging properties, oil resistance, and low temperature properties were investigated. The effect of fumed silica content on the mechanical properties of FKM/MVQ blends in the presence of MVQ-g-TFEMA was also studied. The dynamic mechanical analysis indicates that MVQ-g-TFEMA acts as a compatibilizer in the FKM/MVQ blends. The mechanical properties and oil resistance of FKM/MVQ blends increase with the increasing of MVQ-g-TFEMA content up to 6 phr and the heat aging properties increase with the addition of the compatibilizer. Rubber–filler interactions in the blends increase with the increasing of the compatibilizer content. Rubber–filler interaction studies show that the presence of MVQ-g-TFEMA enhances the interfacial interaction of fumed silica and rubber matrix. The tear strength and hardness increase by the incorporation of fumed silica, and the tensile strength and elongation at break increase with the addition of the fumed silica up to 30 phr in the presence of 6 phr MVQ-g-TFEMA.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"463 1","pages":"539 - 560"},"PeriodicalIF":1.7,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72960649","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 : 2010-09-09DOI: 10.1177/0095244310383752
A. Bhowmick, M. Bhattacharya, S. Mitra
Natural rubber (NR)-based nanocomposites were prepared by conventional processing techniques using various natural and modified nanoclays. For modified montmorillonite (Cloisite® 15A), the 300% modulus, tensile, and tear strength exhibited substantial increments of over the gum due to better dispersion. The unmodified montmorillonite clay (Cloisite® Na+) failed to improve the above properties significantly. The limitations of Cloisite® Na+-based NR nanocomposites prepared by the conventional method were alleviated using latex blending technique. Pre-exfoliated aqueous suspension of Cloisite® Na+ was blended with NR latex under special conditions and cured by pre-vulcanization as well as conventional curing. These showed predominantly exfoliated morphology along with substantially improved physical and mechanical properties. A simple theory based on effective surface area factor was proposed to account for the structure—property correlations.
{"title":"Exfoliation of Nanolayer Assemblies for Improved Natural Rubber Properties: Methods and Theory","authors":"A. Bhowmick, M. Bhattacharya, S. Mitra","doi":"10.1177/0095244310383752","DOIUrl":"https://doi.org/10.1177/0095244310383752","url":null,"abstract":"Natural rubber (NR)-based nanocomposites were prepared by conventional processing techniques using various natural and modified nanoclays. For modified montmorillonite (Cloisite® 15A), the 300% modulus, tensile, and tear strength exhibited substantial increments of over the gum due to better dispersion. The unmodified montmorillonite clay (Cloisite® Na+) failed to improve the above properties significantly. The limitations of Cloisite® Na+-based NR nanocomposites prepared by the conventional method were alleviated using latex blending technique. Pre-exfoliated aqueous suspension of Cloisite® Na+ was blended with NR latex under special conditions and cured by pre-vulcanization as well as conventional curing. These showed predominantly exfoliated morphology along with substantially improved physical and mechanical properties. A simple theory based on effective surface area factor was proposed to account for the structure—property correlations.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"4 1","pages":"517 - 537"},"PeriodicalIF":1.7,"publicationDate":"2010-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81449611","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 : 2010-09-01DOI: 10.1177/0095244310374227
N. Yumae, A. Kaesaman, A. Rungvichaniwat, C. Thepchalerm, C. Nakason
Creaming process with a novel creaming agent, hydroxyl ethyl cellulose, and ammonium laurate soap is performed. It has been found that the total solid content and dry rubber content of creamed latex are 64.33% and 63.31%, respectively. Latex properties of the creamed latex are examined and compared with that of centrifuged latex. It has been found that most properties are similar, except that extractable protein content, mechanical stability time, and viscosity of the creamed latex are higher than that of the centrifuged latex. Furthermore, the creamed latex exhibits larger particle size with broader particle size distribution than that of the centrifuged latex.
{"title":"Novel Creaming Agent for Preparation of Creamed Concentrated Natural Rubber Latex","authors":"N. Yumae, A. Kaesaman, A. Rungvichaniwat, C. Thepchalerm, C. Nakason","doi":"10.1177/0095244310374227","DOIUrl":"https://doi.org/10.1177/0095244310374227","url":null,"abstract":"Creaming process with a novel creaming agent, hydroxyl ethyl cellulose, and ammonium laurate soap is performed. It has been found that the total solid content and dry rubber content of creamed latex are 64.33% and 63.31%, respectively. Latex properties of the creamed latex are examined and compared with that of centrifuged latex. It has been found that most properties are similar, except that extractable protein content, mechanical stability time, and viscosity of the creamed latex are higher than that of the centrifuged latex. Furthermore, the creamed latex exhibits larger particle size with broader particle size distribution than that of the centrifuged latex.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"65 1","pages":"453 - 470"},"PeriodicalIF":1.7,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86054286","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 : 2010-09-01DOI: 10.1177/0095244310379175
V. Pistor, F. G. Ornaghi, R. Fiorio, A. J. Zattera
In this study, mixtures of low-density polyethylene (LDPE) and the recycled elastomeric terpolymer ethylene-propylene-diene (EPDM-r) were obtained. The EPDM-r was incorporated as obtained by the manufacturer (vulcanized) and also after being submitted to a devulcanization process using microwaves. The mixtures were obtained with the use of bis(α, α-dimethylbenzyl) peroxide. The elastomeric residue was characterized by gel content and scanning electron microscopy, before and after the devulcanization process. The mixtures obtained were characterized by thermogravimetric analysis, differential scanning calorimetry, and mechanical tests for resistance to traction and impact. The results of the analysis of the residues showed that the devulcanization process reduced significantly the gel content of the elastomer. The mixtures obtained demonstrated that the incorporation of vulcanized EPDM-r reduced the crystallization and fusion enthalpies, while conserving the crystallization and fusion characteristics of the thermoplastic. The mixtures showed a reduction in the deformation and traction strength; however, the incorporation of devulcanized EPDM-r led to a significant increase in the elasticity modulus values and the resistance to impact in relation to the pure LDPE.
{"title":"Thermal and Mechanical Characterization of a Terpolymer Mixture of Devulcanized Recycled Ethylene-Propylene-Diene and Low-density Polyethylene","authors":"V. Pistor, F. G. Ornaghi, R. Fiorio, A. J. Zattera","doi":"10.1177/0095244310379175","DOIUrl":"https://doi.org/10.1177/0095244310379175","url":null,"abstract":"In this study, mixtures of low-density polyethylene (LDPE) and the recycled elastomeric terpolymer ethylene-propylene-diene (EPDM-r) were obtained. The EPDM-r was incorporated as obtained by the manufacturer (vulcanized) and also after being submitted to a devulcanization process using microwaves. The mixtures were obtained with the use of bis(α, α-dimethylbenzyl) peroxide. The elastomeric residue was characterized by gel content and scanning electron microscopy, before and after the devulcanization process. The mixtures obtained were characterized by thermogravimetric analysis, differential scanning calorimetry, and mechanical tests for resistance to traction and impact. The results of the analysis of the residues showed that the devulcanization process reduced significantly the gel content of the elastomer. The mixtures obtained demonstrated that the incorporation of vulcanized EPDM-r reduced the crystallization and fusion enthalpies, while conserving the crystallization and fusion characteristics of the thermoplastic. The mixtures showed a reduction in the deformation and traction strength; however, the incorporation of devulcanized EPDM-r led to a significant increase in the elasticity modulus values and the resistance to impact in relation to the pure LDPE.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"4 1","pages":"417 - 431"},"PeriodicalIF":1.7,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88926286","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 : 2010-09-01DOI: 10.1177/0095244310374226
S. Chakraborty, Saptarshi Kar, S. Dasgupta, R. Mukhopadhyay, N. Chauhan, S. Ameta, S. Bandyopadhyay
The present study describes the effect of thermo, thermo-oxidative, and ozone exposure on the retention of physical property of organoclay nanocomposites. Accelerated thermal aging is carried out at 130°C for 30 h. Accelerated thermo-oxidative aging is carried out at 105°C for 7 days. Samples are exposed to 50 pphm ozone atmosphere for 24 and 48 h. The result indicates that the retention of physical property is better in nanocomposites compared to carbon black-filled compounds under thermal and thermo-oxidative aging. Besides, ozone resistance is also relatively superior for nanocomposites. The superior barrier property of the nanocomposites is attributed to the better retention of the physical property after aging.
{"title":"Effect of Ozone, Thermo, and Thermo-oxidative Aging on the Physical Property of Styrene Butadiene Rubber-Organoclay Nanocomposites","authors":"S. Chakraborty, Saptarshi Kar, S. Dasgupta, R. Mukhopadhyay, N. Chauhan, S. Ameta, S. Bandyopadhyay","doi":"10.1177/0095244310374226","DOIUrl":"https://doi.org/10.1177/0095244310374226","url":null,"abstract":"The present study describes the effect of thermo, thermo-oxidative, and ozone exposure on the retention of physical property of organoclay nanocomposites. Accelerated thermal aging is carried out at 130°C for 30 h. Accelerated thermo-oxidative aging is carried out at 105°C for 7 days. Samples are exposed to 50 pphm ozone atmosphere for 24 and 48 h. The result indicates that the retention of physical property is better in nanocomposites compared to carbon black-filled compounds under thermal and thermo-oxidative aging. Besides, ozone resistance is also relatively superior for nanocomposites. The superior barrier property of the nanocomposites is attributed to the better retention of the physical property after aging.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"141 1","pages":"443 - 452"},"PeriodicalIF":1.7,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83122088","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 : 2010-09-01DOI: 10.1177/0095244310382665
N. Mohamad, A. Muchtar, M. Ghazali, D. Mohd, C. Azhari
{"title":"Erratum: Correlation of filler loading and silane coupling agent on the physical characteristics of epoxidized natural rubber-alumina nanoparticles composites (Journal of Elastomers and Plastics (2010) 42:4 (331-346))","authors":"N. Mohamad, A. Muchtar, M. Ghazali, D. Mohd, C. Azhari","doi":"10.1177/0095244310382665","DOIUrl":"https://doi.org/10.1177/0095244310382665","url":null,"abstract":"","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"69 1","pages":"493-494"},"PeriodicalIF":1.7,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72654049","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 : 2010-07-27DOI: 10.1177/0095244310376043
A. Saha, A. Bandyopadhyay
Polymeric gel composed of high hydrolyzed grade poly(vinyl alcohol) and surface-modified waste fly ash has been synthesized and reported for the first time. Organic chlorosilane has been used as the surface modifier for the as-received fly ash samples for strong interaction with poly(vinyl alcohol). The resultant gels are visually transparent and thermally stable as compared to the virgin poly(vinyl alcohol). These are also mechanically stronger than the base polymer and as-received fly ash/poly(vinyl alcohol) gels due to better polymer-surface-modified fly ash interaction as reflected from their viscometric results.
{"title":"Some Physicomechanical Investigations on Near-transparent High Hydrolyzed Grade Poly(vinyl alcohol) Gels Impregnated with Surface-modified Waste Fly Ash","authors":"A. Saha, A. Bandyopadhyay","doi":"10.1177/0095244310376043","DOIUrl":"https://doi.org/10.1177/0095244310376043","url":null,"abstract":"Polymeric gel composed of high hydrolyzed grade poly(vinyl alcohol) and surface-modified waste fly ash has been synthesized and reported for the first time. Organic chlorosilane has been used as the surface modifier for the as-received fly ash samples for strong interaction with poly(vinyl alcohol). The resultant gels are visually transparent and thermally stable as compared to the virgin poly(vinyl alcohol). These are also mechanically stronger than the base polymer and as-received fly ash/poly(vinyl alcohol) gels due to better polymer-surface-modified fly ash interaction as reflected from their viscometric results.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"19 1","pages":"433 - 442"},"PeriodicalIF":1.7,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84522930","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 : 2010-07-27DOI: 10.1177/0095244310379980
J. Su, Shuangjun Chen, Jun Zhang
From Van Gurp plot, it was found that low-density polyethylene possesses long branches. The larger number of short branches would consume more peroxide and lower the maximum toque (MH) in cure curves. Rheological studies show the complex viscosity of polypropylene (PP) is the highest among four polyolefins. But PP would undergo beta-scission, which would consume peroxide and also lower the MH. Moreover, the acidic Sb-doped SnO2 (ATO) would retard the cure and descend the chemical crosslink points, which would facilitate the motion of ethylene chain and enhance the crystallinity of polyolefin in ethylene-propylene-diene monomer composites.
{"title":"Reinforcement of EPDM/SmBO3 and EPDM/ATO Composites by Four Polyolefins: Assessment of Branch Content and Crystallinity","authors":"J. Su, Shuangjun Chen, Jun Zhang","doi":"10.1177/0095244310379980","DOIUrl":"https://doi.org/10.1177/0095244310379980","url":null,"abstract":"From Van Gurp plot, it was found that low-density polyethylene possesses long branches. The larger number of short branches would consume more peroxide and lower the maximum toque (MH) in cure curves. Rheological studies show the complex viscosity of polypropylene (PP) is the highest among four polyolefins. But PP would undergo beta-scission, which would consume peroxide and also lower the MH. Moreover, the acidic Sb-doped SnO2 (ATO) would retard the cure and descend the chemical crosslink points, which would facilitate the motion of ethylene chain and enhance the crystallinity of polyolefin in ethylene-propylene-diene monomer composites.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"22 1","pages":"471 - 492"},"PeriodicalIF":1.7,"publicationDate":"2010-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81238990","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 : 2010-07-20DOI: 10.1177/0095244310376918
O. Bianchi, A. J. Zattera, L. B. Canto
Dynamic vulcanization of high-density polyethylene and ethylene vinyl acetate (HDPE/EVA) blends (50/50 wt%) in the mixing chamber of a torque rheometer was investigated. EVA was selectively cross-linked within the HDPE phase by transesterification reaction between ester groups of the EVA and alkoxysilane groups of tetrapropoxysilane, catalyzed by dibutyl tin oxide. Torque level and temperature in the torque rheometer chamber were monitored to follow the evolution of the EVA cross-linking during dynamic vulcanization. The degree of cross-linking of EVA in the HDPE/EVA materials was estimated by the gel content (insoluble EVA fraction). The changes in the HDPE/EVA phase morphology caused by different degrees of EVA cross-linking were investigated by scanning electron microscopy. Melt-state linear viscoelastic properties of the materials were investigated by small amplitude oscillatory shear rheometry. For the composition and processing conditions adopted in this study, the HDPE/EVA showed a coarse co-continuous phase morphology, with large EVA domains interconnected with HDPE domains. Following the dynamic vulcanization, this changed to a more refined co-continuous morphology. The linear viscoelastic relaxation behavior of dynamically vulcanized HDPE/EVA materials suggests the existence of a percolated network structure of high viscous and elastic EVA domains interconnected with thermoplastic HDPE domains.
{"title":"Dynamic Vulcanization of HDPE/EVA Blend Using Silane","authors":"O. Bianchi, A. J. Zattera, L. B. Canto","doi":"10.1177/0095244310376918","DOIUrl":"https://doi.org/10.1177/0095244310376918","url":null,"abstract":"Dynamic vulcanization of high-density polyethylene and ethylene vinyl acetate (HDPE/EVA) blends (50/50 wt%) in the mixing chamber of a torque rheometer was investigated. EVA was selectively cross-linked within the HDPE phase by transesterification reaction between ester groups of the EVA and alkoxysilane groups of tetrapropoxysilane, catalyzed by dibutyl tin oxide. Torque level and temperature in the torque rheometer chamber were monitored to follow the evolution of the EVA cross-linking during dynamic vulcanization. The degree of cross-linking of EVA in the HDPE/EVA materials was estimated by the gel content (insoluble EVA fraction). The changes in the HDPE/EVA phase morphology caused by different degrees of EVA cross-linking were investigated by scanning electron microscopy. Melt-state linear viscoelastic properties of the materials were investigated by small amplitude oscillatory shear rheometry. For the composition and processing conditions adopted in this study, the HDPE/EVA showed a coarse co-continuous phase morphology, with large EVA domains interconnected with HDPE domains. Following the dynamic vulcanization, this changed to a more refined co-continuous morphology. The linear viscoelastic relaxation behavior of dynamically vulcanized HDPE/EVA materials suggests the existence of a percolated network structure of high viscous and elastic EVA domains interconnected with thermoplastic HDPE domains.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"56 1","pages":"561 - 575"},"PeriodicalIF":1.7,"publicationDate":"2010-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90908786","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 : 2010-07-01DOI: 10.1177/0095244310363453
R. Warley
The selection of a curing process for a molded elastomeric component is frequently carried out with consideration given to the elastomer compound characteristics, the geometry of the component, the molding equipment available, and the resulting cost of the process. In this work the effect of multi-stage cure processes on the distribution of state of cure in a component is examined. Cure processes that include elastomer preheat, press cures, oven bake steps, and cool down cycles are considered. The focus is to discern the effect of the molding process on the distribution of the state of cure within the component for processes that yield a technologically acceptable state of cure. The results are analyzed in terms of providing guidance toward optimization of state of cure distributions via practical molding process variables.
{"title":"Simulation of the Distribution of State of Cure for Multi-stage Curing Processes","authors":"R. Warley","doi":"10.1177/0095244310363453","DOIUrl":"https://doi.org/10.1177/0095244310363453","url":null,"abstract":"The selection of a curing process for a molded elastomeric component is frequently carried out with consideration given to the elastomer compound characteristics, the geometry of the component, the molding equipment available, and the resulting cost of the process. In this work the effect of multi-stage cure processes on the distribution of state of cure in a component is examined. Cure processes that include elastomer preheat, press cures, oven bake steps, and cool down cycles are considered. The focus is to discern the effect of the molding process on the distribution of the state of cure within the component for processes that yield a technologically acceptable state of cure. The results are analyzed in terms of providing guidance toward optimization of state of cure distributions via practical molding process variables.","PeriodicalId":15644,"journal":{"name":"Journal of Elastomers and Plastics","volume":"11 1","pages":"313 - 330"},"PeriodicalIF":1.7,"publicationDate":"2010-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73780062","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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