CHARACTERISTICS OF PET FIBRIDS BY PRECIPITATION
As a new product of differentiated fibers,polyethylene terephthalate(PET)fibrid prepared by precipitation was widely used in reinforced composite materials because of its excellent strength,heat resistance,small size and controllable dimensions.The size,surface morphology,degree of crystallinity and thermal properties of Lab-made PET fibrid were studied by using Paul Sieve Shakers,fiber quality analyzer,scanning electron microscope(SEM),X-ray diffractometer(XRD)and thermogravimetric analysis(TGA).Results indicated that the size distribution of PET fibrid was conformable,the length of 0.20-0.80 mm accounted for more than 83%,width of 0.5-4 μm.It is ribbon-like in shape,and had wrinkled surface.Due to the advantages of the precipitation process of preparing the fibrid,PET fibrid exhibit improved thermal properties and crystallinity than the commercial PET pulp.Its crystallinity is 37.88%,the crystal size is 6 nm.The initial decomposition temperature of fibrid was 365℃,the maximum rate of decomposition at 438℃,thus demonstrated its stable molecular structure and excellent thermal properties.The unique morphological characteristics and good thermal properties of PET fibrid can be used in wet forming for paper,filter materials and other fields.
Su-feng Zhang Mei-juan Zhang Bin Zhang Cong-cong Chi Bao-yu Song Ye Liu
Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper,College of Light Industry Science and Engineering,Shaanxi University of Science and Technology,Xian,710021,China
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-5
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）