{"title":"Role of bimetallic (Ag-Cu) nanoparticles on the structural properties of PVA/PVP blend green nanocomposites","authors":"Praveen Ramisetti, Madhukar Katakam, Veeraswamy Maragani, Suresh Kumar Danikonda, Bikshamaiah Nampally","doi":"10.37591/jopc.v10i1.6026","DOIUrl":"https://doi.org/10.37591/jopc.v10i1.6026","url":null,"abstract":"","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84679700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Role of GO and rGO on the structural properties of PA6/PMMA blend nanocomposites","authors":"Srinivas Yekkala, Madhukar Katakam, Ramesh Suramoni, Mohan Babu Nandru","doi":"10.37591/jopc.v10i1.6025","DOIUrl":"https://doi.org/10.37591/jopc.v10i1.6025","url":null,"abstract":"","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87789258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Refractory materials are products used in thermal equipment to protect the fire and prevent heat loss to the outside environment. Thermal equipment such as driers, ceramic kilns, glass or metal furnaces and others always consume high heat in the combustion of the fuel. If the thermal equipments have high heat loss which cause wastes of fuel and increases production costs. Therefore, researchers are always looking for a solution to minimize heat loss for the kiln. In which, refractory materials significantly influence to the heat loss of the kiln and they have been studied a lot in recent years.This study focused on utilization of locally available raw materials to product the novel porous refractory composites. The products have high porosity based on chosing the suitable raw materials and forming process. The refractory has high porosity and low thermal conductivity reponded to requirements of saving energy for the thermal equipments. More important, the novel porous refractory products have high shape stability when observed by heating microscope in a range of room temperature to over 1400 o C.
{"title":"Novel Porous Refractory Synthesized from Diatomaceous Earth and Rice Husk Ash","authors":"N. Thang","doi":"10.37591/jopc.v8i2.4295","DOIUrl":"https://doi.org/10.37591/jopc.v8i2.4295","url":null,"abstract":"Refractory materials are products used in thermal equipment to protect the fire and prevent heat loss to the outside environment. Thermal equipment such as driers, ceramic kilns, glass or metal furnaces and others always consume high heat in the combustion of the fuel. If the thermal equipments have high heat loss which cause wastes of fuel and increases production costs. Therefore, researchers are always looking for a solution to minimize heat loss for the kiln. In which, refractory materials significantly influence to the heat loss of the kiln and they have been studied a lot in recent years.This study focused on utilization of locally available raw materials to product the novel porous refractory composites. The products have high porosity based on chosing the suitable raw materials and forming process. The refractory has high porosity and low thermal conductivity reponded to requirements of saving energy for the thermal equipments. More important, the novel porous refractory products have high shape stability when observed by heating microscope in a range of room temperature to over 1400 o C.","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78097665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vatsal Maisuriya, P. Jain, H. Jariwala, Damyanti G. Badagha
The hybrid composite can be set up by utilizing at least two fiber fortifications in the composite. Here the hybrid composite was set up by utilizing banana/glass fiber. In addition, fiber volume loading was 40%. The tensile test and flexural test were preceded according to ASTM D3039 and ASTM D790 separately. The results show that 5% treated fiber shows higher properties than non-treated fiber composite. NaOH treated banana fiber with glass fiber composite shows higher quality as compared with non-treated in unidirectional continuous fiber reinforced composite.
{"title":"Analysis of unidirectional aligned Banana and Glass fiber reinforced polyester composite for tensile and flexural strength","authors":"Vatsal Maisuriya, P. Jain, H. Jariwala, Damyanti G. Badagha","doi":"10.37591/jopc.v8i2.3936","DOIUrl":"https://doi.org/10.37591/jopc.v8i2.3936","url":null,"abstract":"The hybrid composite can be set up by utilizing at least two fiber fortifications in the composite. Here the hybrid composite was set up by utilizing banana/glass fiber. In addition, fiber volume loading was 40%. The tensile test and flexural test were preceded according to ASTM D3039 and ASTM D790 separately. The results show that 5% treated fiber shows higher properties than non-treated fiber composite. NaOH treated banana fiber with glass fiber composite shows higher quality as compared with non-treated in unidirectional continuous fiber reinforced composite.","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78452766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Inorganic organic (IO) hybrids where inserted conducting organic polymer (COP) imprints their polymeric nature onto the hybrid material are one of the most promising candidates for solving many technological problems of modern technocratic society. The Inorganic-organic hybrid material of para toluidine (organic) & mercuric chloride (inorganic) was synthesized by using “instant-heating and slow-cooling” technique. Some light orange coloured plate-like crystals were obtained. XRD pattern of the grown crystal were analysed which shows that crystal has been grown into monoclinic crystal system in which a ≠ b ≠ c [10.061(4) A ≠ 4.317(2) A ≠ 12.987(5) A] & α=γ= 90 o ≠ β [α = γ = 90 o , β=104.322(7) o ] and belongs to space group p2 1 .Analysis of secondary interactions shows that such material has potential application in opto electronics.
{"title":"Conductive Organic Polymer Based Inorganic-Organic Hybrid Composite: Synthesis and Characterization","authors":"A. Devi, H. Sharma, Mukesh Kumar","doi":"10.37591/jopc.v8i1.3769","DOIUrl":"https://doi.org/10.37591/jopc.v8i1.3769","url":null,"abstract":"Inorganic organic (IO) hybrids where inserted conducting organic polymer (COP) imprints their polymeric nature onto the hybrid material are one of the most promising candidates for solving many technological problems of modern technocratic society. The Inorganic-organic hybrid material of para toluidine (organic) & mercuric chloride (inorganic) was synthesized by using “instant-heating and slow-cooling” technique. Some light orange coloured plate-like crystals were obtained. XRD pattern of the grown crystal were analysed which shows that crystal has been grown into monoclinic crystal system in which a ≠ b ≠ c [10.061(4) A ≠ 4.317(2) A ≠ 12.987(5) A] & α=γ= 90 o ≠ β [α = γ = 90 o , β=104.322(7) o ] and belongs to space group p2 1 .Analysis of secondary interactions shows that such material has potential application in opto electronics.","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73601806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Rao, S. Pradeep, C. K. Yogish, R. Nikhil, G. Patil
Composite materials have become a preferred material now days because of their strength and also they are light. An additional material can be produced by a combination of matrix and reinforcement. The connections also give the flexibility of the design, because many of them can be formed in complex shapes. The economic significance of composite materials is now illustrious. There is strong indication far and wide that this importance will be increasing in the future. Composite materials now occupy an established position in the aerospace industry. They are also used for many components in the automotive industry; marine industry and civil infrastructures now have their reinforcements made of composite materials. There is a large range of manufacturing processes for the production of low-cost composites. Composite materials have been utilized to solve technological problems for a long time but only in the 1960s these material started capturing the attention of industries with the introduction of polymeric-based composites. Since then, composite materials have become common engineering materials and are designed and manufactured for various applications including automotive components, sporting goods, aerospace parts, consumer goods and in the marine and oil industries. The growth in composite usage also came about because of increased awareness regarding product performance and increased competition in the global market for lightweight components.
{"title":"Studies on Mechanical Properties of Ultra High Molecular Weight Poly Ethylene (UHMWPE)-Basalt Fiber Reinforced Hybrid Polymer Matrix Composites","authors":"R. Rao, S. Pradeep, C. K. Yogish, R. Nikhil, G. Patil","doi":"10.37591/JOPC.V7I3.3441","DOIUrl":"https://doi.org/10.37591/JOPC.V7I3.3441","url":null,"abstract":"Composite materials have become a preferred material now days because of their strength and also they are light. An additional material can be produced by a combination of matrix and reinforcement. The connections also give the flexibility of the design, because many of them can be formed in complex shapes. The economic significance of composite materials is now illustrious. There is strong indication far and wide that this importance will be increasing in the future. Composite materials now occupy an established position in the aerospace industry. They are also used for many components in the automotive industry; marine industry and civil infrastructures now have their reinforcements made of composite materials. There is a large range of manufacturing processes for the production of low-cost composites. Composite materials have been utilized to solve technological problems for a long time but only in the 1960s these material started capturing the attention of industries with the introduction of polymeric-based composites. Since then, composite materials have become common engineering materials and are designed and manufactured for various applications including automotive components, sporting goods, aerospace parts, consumer goods and in the marine and oil industries. The growth in composite usage also came about because of increased awareness regarding product performance and increased competition in the global market for lightweight components.","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80895440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Madhukar Katakam, Singh Ramesh, A. Raju, A Ravindar, B SanjeevaRao
The electron beam (e-beam) irradiation effects on polyethylene maleic anhydride (MANPE) are investigated by spectroscopic and thermal methods. The MANPE irradiated with electron beam to a radiation dose of 30, 60 and 90 K Gy and the resultant changes in their chemical structure and thermal properties have been investigated by Electron spin resonance (ESR), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods. The irradiated MANPE has shown complex ESR line shapes under different conditions. The analysis of ESR spectra suggests the formation of macro-radicals of the type (–CH 2 -ĊH-CH 2 -)(I) and peroxy radicals of the ROO (II). The temperature dependent ESR studies suggest that the free radicals are trapped in the amorphous regions of the polymer. The g- values of free radicals at different temperatures are measured and reasons for variation in g- values is explained. Bloch analysis is used to calculate activation energy associated with the decay of free radicals. The FTIR analysis indicates the shifting of absorption bands and formation of new absorption bands corresponding to unsaturated groups and carbonyl groups centered around 1600 cm and 929 cm -1 . The e-beam irradiation of MANPE caused the decrease of transition temperature and increase of melting enthalpy and degree of crystallinity with increase of radiation dose as per differential scanning calorimeter studies. The results indicate that on irradiation MANPE preferably undergo degradation at low dose of irradiation and preferably undergo crosslinking at high doses.
采用光谱学和热学方法研究了电子束辐照对聚乙烯马来酸酐(MANPE)的影响。采用电子自旋共振(ESR)、傅里叶变换红外光谱(FTIR)、差示扫描量热法(DSC)、x射线衍射(XRD)和扫描电子显微镜(SEM)等方法研究了在30、60和90 K Gy辐照下，MANPE的化学结构和热性能的变化。辐照后的聚乙烯在不同条件下呈现出复杂的ESR线形。ESR光谱分析表明形成了(- ch2 -ĊH-CH 2 -)(I)型的宏观自由基和ROO (II)型的过氧自由基。温度相关的ESR研究表明自由基被困在聚合物的无定形区域。测定了自由基在不同温度下的g值，并解释了g值变化的原因。布洛赫分析用于计算与自由基衰变有关的活化能。FTIR分析表明，在1600 cm和929 cm -1附近的不饱和基团和羰基形成了新的吸收带。差示扫描量热法研究表明，随着辐照剂量的增加，电子束辐照MANPE的转变温度降低，熔融焓和结晶度增大。结果表明，在辐照条件下，低剂量辐照下，聚乙烯较好地发生降解，高剂量辐照下，较好地发生交联。
{"title":"Electron beam irradiation studies of polyethylene maleic anhydride on their Chemical and Thermal properties.","authors":"Madhukar Katakam, Singh Ramesh, A. Raju, A Ravindar, B SanjeevaRao","doi":"10.37591/JOPC.V6I2.943","DOIUrl":"https://doi.org/10.37591/JOPC.V6I2.943","url":null,"abstract":"The electron beam (e-beam) irradiation effects on polyethylene maleic anhydride (MANPE) are investigated by spectroscopic and thermal methods. The MANPE irradiated with electron beam to a radiation dose of 30, 60 and 90 K Gy and the resultant changes in their chemical structure and thermal properties have been investigated by Electron spin resonance (ESR), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM) methods. The irradiated MANPE has shown complex ESR line shapes under different conditions. The analysis of ESR spectra suggests the formation of macro-radicals of the type (–CH 2 -ĊH-CH 2 -)(I) and peroxy radicals of the ROO (II). The temperature dependent ESR studies suggest that the free radicals are trapped in the amorphous regions of the polymer. The g- values of free radicals at different temperatures are measured and reasons for variation in g- values is explained. Bloch analysis is used to calculate activation energy associated with the decay of free radicals. The FTIR analysis indicates the shifting of absorption bands and formation of new absorption bands corresponding to unsaturated groups and carbonyl groups centered around 1600 cm and 929 cm -1 . The e-beam irradiation of MANPE caused the decrease of transition temperature and increase of melting enthalpy and degree of crystallinity with increase of radiation dose as per differential scanning calorimeter studies. The results indicate that on irradiation MANPE preferably undergo degradation at low dose of irradiation and preferably undergo crosslinking at high doses.","PeriodicalId":41357,"journal":{"name":"Journal of Polymer & Composites","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2018-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86912986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：