耐热德固赛PMMA TT70原料---TT70是一种高度耐热变形的聚甲基丙烯酸甲酯酰亚胺(PMMI)。
除了显示所有PLEXIMID®模塑化合物的共同特性外,例如
出色的传输和清晰度,
非常高的机械强度和刚度,
耐候性好。
PLEXIMID®TT70具有以下特性
特点:
在长期热负荷下光学特性的高稳定性,
负载下的高热变形温度。
应用程序:
PLEXIMID®模塑料特别适用于涉及大热负荷的应用项目的注射成型。例如:透镜、导光器、照明设备、灯罩。
处理:
PLEXIMID®模塑料可在注塑机上使用热塑性塑料的标准3区通用螺钉进行加工。
PLEXIMID®以尺寸均匀的颗粒形式提供,装在25公斤的铝层压聚乙烯袋中。
TT70 is a highly heat distortion-resistant poly(n-methylmethacrylimide) (PMMI).
Besides showing the properties common to all PLEXIMID® moldingcompounds, such as
excellent transmission and clarity,
very high mechanical strength and rigidity,
good weather resistance.
PLEXIMID® TT70 has the following specific
characteristics:
high stability of the optical characteristics at long-lastingthermal load,
highest heat deflection temperature under load.
Application:
PLEXIMID® molding compound is particularly suitable for injectionmolding of items meant for applications that involve maximumthermal loads. Examples: lenses, light guides, lighting fixtures,covers.
Processing:
PLEXIMID® molding compound can be processed on injection moldingmachines with standard 3-zone general purpose screws forthermoplastics.
PLEXIMID® is supplied as pellets of uniform size inaluminum-laminated, 25kg polyethylene bags.
耐热德固赛PMMA TT70原料--PMMA化学性能:
聚甲基丙烯酸甲酯的单体是甲基丙烯酸甲酯,为无色液体,具有香味,沸点101℃,密度为0.940克/厘米3(25℃)。
工业上是先用异丁烯催化氧化法制出甲基丙烯酸,酯化而得。它容易聚合,需要在5℃以下存放,或加入0.01%左右的对苯二酚阻聚剂来保存。使用前将其蒸馏,把阻聚剂分出。
聚甲基丙烯酸甲酯能溶于自身单体、氯仿、乙酸、乙酸乙酯、丙酮等有机溶剂。由于它能溶于自身单体中,它的本体聚合物非常透明(见本体聚合)。