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Characterization of PET Fibrid and Mechanical Properties of Its Composite Paper
  
DOI:10.11980/j.issn.0254-508X.2018.03.005
Key Words:PET fibrid  fiber properties  fiber morphology  paper mechanical property
Fund Project: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)。
Author NameAffiliation
ZHANG Su-feng* Shaanxi Provincal Key Lab of Papermaking Technology and Specialty Paper Development, Key Lab of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi′an, Shaanxi Province, 710021 
SONG Bao-yu Shaanxi Provincal Key Lab of Papermaking Technology and Specialty Paper Development, Key Lab of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi′an, Shaanxi Province, 710021 
ZHANG Mei-juan Shaanxi Provincal Key Lab of Papermaking Technology and Specialty Paper Development, Key Lab of Paper Based Functional Materials of China National Light Industry, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi′an, Shaanxi Province, 710021 
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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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