Pub Date : 2024-07-25DOI: 10.1177/0262489319961502002
G.L.A. Sims, N. Sombatsompop
Polyester polyurethane foam was densified and comminuted using an intermeshing disc impact mill. Resultant particles were investigated as a potential filler in natural rubber at concentrations from 0-75 parts per hundred rubber by monitoring tensile properties, elongation set. cure times and fracture surface characteristics.It was found that a filler concentration of 25 parts per hundred rubber produced essentially similar tensile properties, elongation set and cure time to the natural rubber vulcanisate suggesting that the filler was a satisfactory extender for natural rubber.Increasing filler content to 30 parts per hundred rubber significantly increased modulus at 100% and 200% strain and the ultimate tensile stress but worsened breaking strain and elongation set. Therefore in a critical concentration range between 25 and 30 parts per hundred rubber the particles could be regarded as a reinforcing filler extender whereas higher concentrations produced progressively poorer properties but cheapened the product cost.Scanning electron micrographs of fracture surfaces, obtained at 21°C and after immersion in liquid nitrogen, tended to indicate that reinforcement was likely to be a function of relatively weak intermolecular forces at the interface of the elastomer and the particle, molecular entanglements and a possible further contribution due to the aspect ratio of the particles which may act as short fibre reinforcement.
{"title":"Pulverised Flexible Polyurethane Foam Particles as a Filler in Natural Rubber Vulcanisates","authors":"G.L.A. Sims, N. Sombatsompop","doi":"10.1177/0262489319961502002","DOIUrl":"https://doi.org/10.1177/0262489319961502002","url":null,"abstract":"Polyester polyurethane foam was densified and comminuted using an intermeshing disc impact mill. Resultant particles were investigated as a potential filler in natural rubber at concentrations from 0-75 parts per hundred rubber by monitoring tensile properties, elongation set. cure times and fracture surface characteristics.It was found that a filler concentration of 25 parts per hundred rubber produced essentially similar tensile properties, elongation set and cure time to the natural rubber vulcanisate suggesting that the filler was a satisfactory extender for natural rubber.Increasing filler content to 30 parts per hundred rubber significantly increased modulus at 100% and 200% strain and the ultimate tensile stress but worsened breaking strain and elongation set. Therefore in a critical concentration range between 25 and 30 parts per hundred rubber the particles could be regarded as a reinforcing filler extender whereas higher concentrations produced progressively poorer properties but cheapened the product cost.Scanning electron micrographs of fracture surfaces, obtained at 21°C and after immersion in liquid nitrogen, tended to indicate that reinforcement was likely to be a function of relatively weak intermolecular forces at the interface of the elastomer and the particle, molecular entanglements and a possible further contribution due to the aspect ratio of the particles which may act as short fibre reinforcement.","PeriodicalId":9816,"journal":{"name":"Cellular Polymers","volume":"65 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141783217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-07-23DOI: 10.1177/02624893241266388
Fahimeh Derakhshanfard
By increasing usage of polymers, environmental problems for them increase. The polymers that after usage, contribute to these issues, their preparation process may generate wastage, that affects production. In the production of expandable polystyrene (EPS), several batches on batch were discharged due to disruption in suspension, and the presence of these wastages in the production place can cause problems. This study tries to introduce a new polymer with special features by mixing different percentages of this polymer (10, 20, 30) with ABS polymer. According to the fact that disarray can occur in 60, 63, 66, and 69% of the polymerization, the polymerization continued until those percentages and then mixed with ABS. Different tests (like: Elongation at break, yellow index, Modular melt flow, Impact test, and Vicat softening temperature) was performed for mixed polymer. The results show that in some materials the quality of the mixed polymer may decrease but it is still in an acceptable range. The Multi-Layer Perceptron method of Artificial Neural Networks has been used in order to simulate data that has not been tested.
{"title":"Preparation of expandable polystyrene/acrylonitrile-butadiene-styrene by multi-stage initiator dosing with the application of artificial neural networks","authors":"Fahimeh Derakhshanfard","doi":"10.1177/02624893241266388","DOIUrl":"https://doi.org/10.1177/02624893241266388","url":null,"abstract":"By increasing usage of polymers, environmental problems for them increase. The polymers that after usage, contribute to these issues, their preparation process may generate wastage, that affects production. In the production of expandable polystyrene (EPS), several batches on batch were discharged due to disruption in suspension, and the presence of these wastages in the production place can cause problems. This study tries to introduce a new polymer with special features by mixing different percentages of this polymer (10, 20, 30) with ABS polymer. According to the fact that disarray can occur in 60, 63, 66, and 69% of the polymerization, the polymerization continued until those percentages and then mixed with ABS. Different tests (like: Elongation at break, yellow index, Modular melt flow, Impact test, and Vicat softening temperature) was performed for mixed polymer. The results show that in some materials the quality of the mixed polymer may decrease but it is still in an acceptable range. The Multi-Layer Perceptron method of Artificial Neural Networks has been used in order to simulate data that has not been tested.","PeriodicalId":9816,"journal":{"name":"Cellular Polymers","volume":"107 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141783332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-17DOI: 10.1177/0262489319951401002
Gilles Tersac, Franck Hubert, Gerard Durand, Joel Quillerou, Jeanine Rivero, Jean Charles Maréchal
{"title":"Proprietes physicochimiques des polyols obtenus par polyestérification des produits de glycolyse du polyéthylènetéré phtalate et syntheses de polyurethanes","authors":"Gilles Tersac, Franck Hubert, Gerard Durand, Joel Quillerou, Jeanine Rivero, Jean Charles Maréchal","doi":"10.1177/0262489319951401002","DOIUrl":"https://doi.org/10.1177/0262489319951401002","url":null,"abstract":"","PeriodicalId":9816,"journal":{"name":"Cellular Polymers","volume":"23 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141060625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-17DOI: 10.1177/0262489319951401005
{"title":"UTECH Asia '95: Technology for the PU business","authors":"","doi":"10.1177/0262489319951401005","DOIUrl":"https://doi.org/10.1177/0262489319951401005","url":null,"abstract":"","PeriodicalId":9816,"journal":{"name":"Cellular Polymers","volume":"44 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141060530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-17DOI: 10.1177/0262489319951401001
W.B. Anderson, R.S. Lakes, M.C. Smith
{"title":"Holographic Evaluation of Warp in the Torsion of a Bar of Cellular Solid","authors":"W.B. Anderson, R.S. Lakes, M.C. Smith","doi":"10.1177/0262489319951401001","DOIUrl":"https://doi.org/10.1177/0262489319951401001","url":null,"abstract":"","PeriodicalId":9816,"journal":{"name":"Cellular Polymers","volume":"137 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141060632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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