Shanghai Daoqin Plastics Co., Ltd.

         high temperature nylon more is semi aromatic nylon, its high heat resistant, low water absorption and good dimensional stability and other advantages, used for electronics electrical appliances, automotive industrial, aviation aerospace and other has requirements field/area.

         currently, toughening agent for glass fiber reinforced high temperature nylon material research relatively less, 基于此, solid glass fiber (GF) quality separation is 20%, using/adopting di screw extrusion mechanism 备基于PA6T/66 and PA10T POE-g-MAH toughened high temperature nylon material and POE-g-MAH toughened PA66材 material, research toughening agent POE-g-MAH for high temperature nylon composite/compounding material force property can effect/influence, toughening agent improvement high temperature nylon glass fiber reinforced composite/compounding material can can mechanism.

        仅添 add POE-g-MAH, comparison its toughened high temperature nylon and PA66

        1, force property can data comparison

        由 upper can 知, in PA66 system in, 随POE-g-MAH content increase, tensile strength and flexural strength decline; in PA6T/66 and PA10T system in, tensile strength and flexural strength upper rise rear decline, 并发现两者 in to strong/high degree most large value POE-g-MAH添 add amount has significantly 差异, PA6T/66 system to strong/high degree most large POE-g-MAH添 add amount is 5%, PA10T system to strong/high degree most large POE-g-MAH添 add amount is 15%.

        2, from electrical sheet/slice mechanism

content is 0         content is 5%

different POE-g-MAH content 20% glass fiber reinforced PA6T/66

未添 add POE-g-MAH 20% glass fiber reinforced PA66

        由 upper can 知, add POE-g-MAH impact strip/profile upper glass fiber (GF) surface very light slip, has obvious nylon 基体包覆 迹象, in add POE-g-MAH high temperature nylon system in, glass fiber (GF) and resin between combined good;而添 add 5% POE-g-MAH PA6T/66 system strip/profile upper, its in glass fiber (GF) surface has relatively obvious 褶皱, table/sheet glass fiber (GF) surface by resin has 效包覆, POE-g-MAH起 to interface compatibilizer function.

        由 lower can 知, add POE-g-MAH PA66 system in, glass fiber (GF) and resin between has good combined, its glass fiber (GF) upper has obvious nylon resin 包覆.

        据此, 我们认 is high temperature nylon relatively high processing temperature degree formed glass fiber (GF) surface solid has coupling agent degradation loss 失, its in glass fiber (GF) and resin combined very 差, in strip/profile impact 实验时, glass fiber (GF) from resin in 抽出, surface light slip;而添 add POE-g-MAH system in, POE-g-MAH as is interface compatibilizer, 弥补 因 processing process in glass fiber (GF) surface loss coupling agent function, promote glass fiber (GF) and resin between combined force.

        3, from 流变曲线看出 mechanism

different POE-g-MAH content PA6T/66 流变曲线

         toughening agent POE-g-MAH in glass fiber reinforced high temperature nylon material in types can can function mechanism is through improve/increase system degree make screw for melt function to has 效传递, glass fiber (GF) dispersion / distribution good. upper can 知, different POE-g-MAH content PA6T/66 黏 degree 差异不 obvious, 由此认 is toughening agent system melt degree 变化不 is 导致材 material force property can obvious improves main/primary causes.

        仅添 add silicon coupling agent, comparison its toughened high temperature nylon and PA66

         design in PA6T/66 and PA66 system in add silicon coupling agent (0.5%) 实验. upper table/sheet can 知, coupling agent for glass fiber reinforced PA66 system force property can 几乎没 has effect/influence, in PA6T/66 system in, add same content coupling agent make system force property can has significantly improves. 该实验结果证实 upper for glass fiber (GF) surface coupling agent in high processing temperature degree lower degradation loss and toughening agent reinforcement high temperature nylon resin and glass fiber (GF) interface versus property 推测.

        结论: high temperature nylon relatively high processing temperature degree formed glass fiber (GF) surface coupling agent degradation loss is 导致POE-g-MAH in type system in generate reinforcement causes. coupling agent 实验 结果证实 glass fiber (GF) surface coupling agent in high processing temperature degree lower degradation loss and toughening agent reinforcement high temperature nylon resin and glass fiber (GF) interface versus property 推测.