反应性挤出合成PA6/6T及其性能研究  

Synthesis and Properties Study of PA6/6T by Reaction Extrusion

作　　者：瞿兰[1] 张美林[1] 龙盛如[1] 杨杰[1,2] 

机构地区：[1]四川大学分析测试中心材料科学与技术研究所,四川成都610064 [2]四川大学高分子材料工程国家重点实验室,四川成都610065

出　　处：《塑料工业》2013年第S01期78-80,共3页China Plastics Industry

摘　　要：为了得到同时具有优良耐热性能和易加工性能的共聚物PA6／6T，探索了双螺杆反应性挤}H预聚物PA6／6T合成较高摩尔质量共聚物PA6／6T的可行性；并通过FTIR、1H—NMR对最终产物结构进行了表征；利用DSC、TG对其热性能进行了研究；同时研究了其力学性能。结果表明：通过反应性挤出成功得到了具有较高特性黏数的共聚物PA6／6T，通过控制共聚比，可获得熔点低至295℃，拉伸、弯曲和冲击强度分别为72、100MPa和26kJ／m2，具有优良综合性能的PA6／6T共聚树脂。To get PA6/6T composite with well heat resistance and processing ability, reactive extruding prepolymer PA6/6T was discussed to the synthesis of high molar mass copolymer PA6/6T by twin-screw extruder ; and through FTIR, 1H-NMR, the structure of the final product were characterized; using the DSC, TG, its thermal properties were studied as well as the mechanical properties. The results showed PA6/6T had better intrinsic viscosity. The melting points of PA6/6T was 295℃. The tensile strength, flexural strength and impact strength of PA6/6T were 72 MPa, 100 MPa and 26.0 kJ/m 2 with well comprehensive properties.

关 键 词：尼龙6T 共聚改性 双螺杆挤出 力学性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]