摘要
用差示扫描量热仪（DSC）、X射线衍射仪（XRD）及显微熔点仪（POM）对5种造纸用低熔点及1种普通聚酯短纤的热性能、结晶度、熔融过程中的形态变化进行了分析。测试发现：#1纤维结晶度最小,在110℃左右时发生冷结晶,强度增强,初熔时纤维形态弯曲熔融变形,起到粘合增强作用,其在制备过程中未经过拉伸和热定型工艺;#2纤维结晶度较高,在180℃左右熔融变形,起到粘合增强作用,是由低熔点改性聚酯纺丝而成;#3～#5低熔点皮芯纤维结晶度较低,在120～150℃时表层熔融变形,其低熔点组分属于无定形或结晶度较低的聚酯,在抄纸过程中表现出强度提高。
The thermal performance, crystallinity and molten state of six kinds polyester fibers included five low melting point fibers and one ordinary fiber were studied by using DSC, XRD and POM. The results showed that the crystallinity of ^#1 without drawing and heat setting in the preparation process was the least and has phenomenon of cold crystallization. The fiber began to bending at about 110℃, ^#2 was spinning with low melting point modified polyester. The fiber had higher crystallinity and begins to melt and deformation at about 180℃; The low melting component of ^#3～^#5 were amorphous or low crystallinity polyester and began to melt at 120～150℃, result showed that the strength of paper in papermaking process increased.
出处
《纸和造纸》
2016年第3期17-21,共5页
Paper and Paper Making
关键词
低熔点聚酯纤维
增强
热性能
结晶度
熔融形态
low melting point polyester fiber
strengthening
thermal performance
crystallinity
melt morphology
