title: [Study on the orientation of poly(propylene terephthalate) fiber].
abstract: Poly (trimethyleneterephthalate) is a new polymer material. Using polaroid and horizontal ATR accessories combining FTIR spectrometer, the orientation of PPT fiber undergoing different drawing rate was studied. The dichroic ratio and orientation function were determined. The results show that both the dichroic ratio and the orientation function increased with drawing rate, but for dichroic ratio, there was a plateau when drawing rate was above 2,500 m.min-1.
authors.affiliation: Department of Chemical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Yang
authors.forename: Bao-hua
authors.initials: BH
authors.lastname: Guo
authors.forename: Kun-hua
authors.initials: KH
authors.lastname: Wang
authors.forename: Wu
authors.initials: W
authors.lastname: Jing
mesh_terms: D003521:Cyclopropanes; D010795:Phthalic Acids / Q000737:chemistry*; D011108:Polymers; D011126:Polypropylenes / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D003521:Cyclopropanes; D010795:Phthalic Acids; D011108:Polymers; D011126:Polypropylenes; C011363:terephthalic acid; C030797:cyclopropane