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适于熔融纺丝的聚丙烯腈熔体物料的研究
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作者 樊淑芳 《石化技术与应用》 CAS 2000年第4期203-205,共3页
通过水相悬浮聚合法制得了不同配比及不同相对分子质量的聚丙烯腈 (PAN) ,以水、丙烯腈 (AN)为增塑剂对聚合物进行了增塑熔融。研究了增塑剂、聚合物的相对分子质量及共聚单体含量对聚合物熔点的影响 ,指出聚丙烯腈增塑熔融是可行的。... 通过水相悬浮聚合法制得了不同配比及不同相对分子质量的聚丙烯腈 (PAN) ,以水、丙烯腈 (AN)为增塑剂对聚合物进行了增塑熔融。研究了增塑剂、聚合物的相对分子质量及共聚单体含量对聚合物熔点的影响 ,指出聚丙烯腈增塑熔融是可行的。在此基础上 ,对适于熔融纺丝的聚合物提出了较为具体的要求 ,确定了增塑剂的用量范围。 展开更多
关键词 聚丙烯腈 熔融纺丝 悬浮聚合 熔体物料 纤维
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A Study on Enhancement of Filtration Process with Filter Aids Diatomaceous Earth and Wood Pulp Cellulose 被引量:12
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作者 都丽红 陈旭 +1 位作者 李文苹 朱企新 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2011年第5期792-798,共7页
In this paper, a study to enhance the filtration for solid/liquid materials difficult to be filtered, such as highly viscous, highly compactible or gel like materials, is presented. Filter aids diatomaceous earth and ... In this paper, a study to enhance the filtration for solid/liquid materials difficult to be filtered, such as highly viscous, highly compactible or gel like materials, is presented. Filter aids diatomaceous earth and wood pulp cellulose are used to enhance the filtration by improving filter cake structure and properties in the filtration of a biological health product and a highly viscous chemical fiber polymer melt product. The property of solid/liquidsystems, filtration at different flow rates, specitic cake resistance, cake wetness, filtration rate, filtrate turbidity for filter aid selection and evaluation, and operation optimization are investigated. The results are successfully applied to industrial process, .and can be used as a reference for similar filtration applications. 展开更多
关键词 filter aid specific cake resistance cake compressibility coefficient diatomaceous earth wood pulpcellulose
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