摘要
采用微型双螺杆挤出机,将聚对苯二甲酸乙二醇-1,4-环己烷二甲醇酯(PETG)、聚碳酸酯(PC)、聚氨酯(TPU)挤出共混,制备了PETG/PC、PETG/PC/TPU两种共混物,研究了两种共混物的透明性能、力学性能、相容性及微观结构等。结果表明:PETG/PC共混物具有良好透明性能和相容性,共混物断裂方式为韧性断裂;PC的加入提高了PETG/PC共混物的拉伸强度,但断裂伸长率有所降低;TPU的加入不影响PETG/PC体系的透明性,并能够提高体系的断裂伸长率。
The blends of polyethylene terephthalate cyclohexane-1 ,g-dimethylene terephthalate （PETG）/polycarbonate （PC）/polyurethane （TPU） and PETG/PC were prepared in the twin-screw extruder by extrusion blending, and the transparency, mechanical properties, compatibility and microscopic structure of two kinds of blends were investigated. It showed that the transparent performance and compatibility of the PETG/PC blends was very well,and the blends were ductile fracture. With the increasing of the PC content, the tensile strength of PETG/PC was increased evidently,while the elongation at break of PETG/PC was decreased. With the constant of TPU increasing,the light transmittance PETG/PC blends was not affected, and elongation at break was improved evidently.
出处
《塑料》
CAS
CSCD
北大核心
2016年第6期21-24,共4页
Plastics
基金
国家自然科学基金(81271184)
关键词
聚对苯二甲酸乙二醇-1
4-环己烷二甲醇酯
聚碳酸酯
聚氨酯
共混
透明
poly （ ethylene terephthalate-co-1, 4-cyclohexane dimethanol ） terephthalate
polycarbonate
polyurethane
blend
transparency
