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PET沉析纤维及其复合纸机械性能的研究
Characterization of PET Fibrid and Mechanical Properties of Its Composite Paper
收稿日期:  
DOI:10.11980/j.issn.0254-508X.2018.03.005
关键词:  PET沉析纤维  纤维性能  纤维形貌  纸张力学性能
Key Words:PET fibrid  fiber properties  fiber morphology  paper mechanical property
基金项目:陕西省2015科技统筹创新工程计划项目(2015KTCQ01-44); 陕西省造纸技术及特种纸品重点实验室项目(No.12JS024); 陕西省教育厅重点科学研究计划(重点实验室)(No.17JS016)。
作者单位
张素风 陕西科技大学陕西省造纸技术与特种纸品开发重点实验室中国轻工业纸基功能材料重点实验室轻化工程国家级实验教学示范中心陕西西安710021 
宋宝玉 陕西科技大学陕西省造纸技术与特种纸品开发重点实验室中国轻工业纸基功能材料重点实验室轻化工程国家级实验教学示范中心陕西西安710021 
张美娟 陕西科技大学陕西省造纸技术与特种纸品开发重点实验室中国轻工业纸基功能材料重点实验室轻化工程国家级实验教学示范中心陕西西安710021 
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摘要:采用扫描电子显微镜、纤维质量分析仪、比表面积分析仪和X射线衍射仪(XRD)等检测仪器,对自制PET沉析纤维和市售PET浆粕进行表面形貌、比表面积、结晶性能及成纸性能研究。实验结果表明,与市售PET浆粕相比,自制PET沉析纤维呈飘带状,纤维形态柔顺,质轻且较薄,比表面积较大,达6.311 m2/g;纤维结晶度为36.10%,纤维悬浮液分散度达97%,有利于提高成纸匀度和强度;相比于市售PET浆粕和PET短切纤维抄造的纸张,自制PET沉析纤维和PET短切纤维成纸的抗张指数、撕裂指数和伸长率分别提高了6.3%、11.2%、38.8%。
Abstract:The surface morphology, specific surface area, crystalline properties and papermaking properties of lab-made PET fibrid and commercially available PET pulp were studied using scanning electron microscopy(SEM), FQA, BET surface analyzer and X-ray diffraction(XRD). The experimental results showed that compared with the commercially available PET pulp, PET fibrids were ribbon, soft, lightweight and thinner, with fiber morphology and larger specific surface area. The crystallinity of the fibrid was 36.10%, and the dispersity of fibrid suspension reached 97%, which was helpful to improve the formation and mechanical strength of PET sheets. At the same ratio of raw materials, the tensile index, tear index and elongation of the paper prepared with PET fibrid and PET chopped fiber improved by 6.3%, 11.2% and 38.8%, respectively compared with the paper prepared with commercial PET pulp and chopped fiber.
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