Shanghai Daoqin Plastics Co., Ltd.

        1, 连续工 as temperature degree table/sheet plastics molding product heat resistant degree. generally separation is material heat resistant property and chemical heat resistant property, front is 指规定形状 plastics molding in add hot temperature degree lower, product property can; rear is table/sheet plastics molding material in separation heat stabilized property.

         main/primary is table/sheet plastics molding in negative conditions lower resistant thermal properties. Common engineering plastics 如PEEK long as temperature degree is 260℃.

        2, 玻璃化 temperature degree temperature degree high 于Tg时, non polymer will soft and 橡胶状. ensure non polymer use temperature degree low 于Tg non important, this can obtain mechanical properties.

        3, heat deflection temperature (HDT) heat deflection temperature (HDT) is negative 荷挠曲 temperature degree 通俗说 method. it is high temperature lower plastics rigid property types methods: in negative lower, 以一定 speed degree add temperature, to 式样显示指示 deformation amount temperature degree.

        因 is in non crystallization property plastics in, negative 荷挠曲 temperature degree is table/sheet 示接近于玻璃化转变 temperature degree lower temperature degree, therefore how much can formed is use property indicators. is crystallization property plastics in, negative 荷挠曲 temperature degree is table/sheet 示玻璃化转变点 and crystallization melting point between temperature degree, therefore in also is in use upper is 无意义 temperature degree, but also 测定结果 偏差也 very obvious. parameters by used for versus 应 测 amount different material in short time rise temperature but also negative 荷情况 lower resistant temperature degree can force.

        4, 线膨胀系数线膨胀系数 is in pressure lower, plastics molding product in temperature degree rise high 1℃情况 lower ratio/proportion, table/sheet is versus for/regarding mono long degree 线膨胀系数. 该系数 is understanding plastics formed product temperature degree rise high, product dimensions 变化程 degree important indicators 之一.

        5, hot rate hot rate table/sheet in 1s inner through temperature is 1℃, thick degree is 1㎝ plastics formed product hot amount. it is design product research target/goal product thermal insulation property indicators.

        6, specific heat capacity specific heat capacity is versus for/regarding plastics molding product mono quality (1g) hot amount. generally is table/sheet plastics molding product temperature degree rise high 1℃时 need hot amount. specific heat capacity hot rate same, is product design research target/goal product rise temperature property data.

        7, temperature degree plastics low temperature force is types amount degree. tool has can amount impact Sample 时, Sample cracking rate to 50%时 temperature degree 称脆化 temperature degree. temperature degree 测定: use 实验钳夹住规定形状 and dimensions molding 式样 一端, solid in 实验槽 inner, in 指定 各 grade low temperature hot in, 放置2.9-3.1min rear, use 打击锤敲击 one-time, from by bad 结果 求出 its temperature degree.