Shanghai Daoqin Plastics Co., Ltd.

PA66/6 brief introduction:

        polyamide (PA) 66 (PA66) and polyamide (PA) 6 (PA6) is currently polyamide (PA) （PA） product in output/production volume most large, application most product types, tool has force strong/high degree high, lubricated excellent 良, resistant solvent agent property good and other advantages 但PA66 melting point relatively high, processing temperature degree scope/range narrow, PA6 impact strong/high degree low, this will made in certain field/area application. therefore, if already acid already amine salt and caprolactam is raw materials, through copolymer modified made polyamide (PA) 66 /6 （PA66 /6）, combined excellent property can improvement its processing property and tough property and other, will has wide.

PA66/6 application:

        PA66/6 in machine manufacturing, textile processing and 交通运输 and other field/area application .

PA66/6 property can:

        PA copolymer modified main/primary is utilizing separation in amine 基, and amine 基进行 chemical combined, due to PA6 and PA66 separation mono structure 含基团数 different, mono ratio will effect/influence copolymer material structure property can.

PA66/6 made 备:

        1, melt blending made 备 method :

        PA66占 ratio separation is 15% and 40% PA6/66, research hydrogen 键变化 for PA6/66 crystallization property effect/influence, table/sheet 明, blending process in PA6 and PA66间 hydrogen formed can force very low, PA66 无定形状态会 retardant 碍PA6 separation in hydrogen 键 形 formed, reduce PA6 / 66 crystallization degree.

        2, caprolactam and for 苯二甲 acid already amine salt （6Ⅰ salt ） made copolymer PA6/6Ⅰ:

        research table/sheet 明, 随 6Ⅰ salt add amount increase, copolymer system tensile and flexural strength improve/increase, 当6Ⅰ salt add amount is 10%时, copolymer system 玻璃化转变 temperature degree most large, impact strong/high degree most 佳.

        3, melt polycondensation made method :

        BASF company through melt polycondensation method made adipic acid already amine salt add amount is 13.5%～ 19.5% PA6/66, copolymer versus for degree most high improves 至4.0, melting point drop to 189℃, has improvement its processing properties.

        4, copolymer made method :

        罗E航 and other utilizing copolymer method made adipic acid already amine salt amount is 5%—20% PA6/66, research 发现, amount already acid already amine salt 添 市仅未改变主体PA6 晶 type, also for copolymer reaction to promote function, can reduce copolymer can material content, improve/increase mono 体 转化 rate.