玻璃纤维增强无卤阻燃生物基PA56的应用评价  

Application Evaluation of Glass Fiber Reinforced Halogen-free Flame-retardant Bio-based PA56

作　　者：陈勇伟 王增效 徐莉莉 CHEN Yongwei;WANG Zengxiao;XU Lili(Zhejiang PRET Advanced Materials Co.,Ltd.,Jiaxing 314006,China;Shanghai PRET Composites Co.,Ltd.,Shanghai 201707,China)

机构地区：[1]浙江普利特新材料有限公司,浙江嘉兴314006 [2]上海普利特复合材料股份有限公司,上海201707

出　　处：《塑料工业》2023年第9期114-119,共6页China Plastics Industry

摘　　要：通过双螺杆挤出机制备了30%玻璃纤维增强无卤阻燃尼龙56材料FRPA56-GF30和30%玻璃纤维增强无卤阻燃尼龙66材料FRPA66-GF30,对比研究了两种复合材料的吸水尺寸变化、干态性能、环境试验性能以及脱模性能。结果表明,与FRPA66-GF30相比较,FRPA56-GF30的收缩率小,吸水速率和吸水率大,吸水后尺寸变化率大;干态条件下,力学性能接近,热变形温度降低,垂直燃烧和CTI性能相当;高温140℃老化1008 h后,性能保持率与FRPA66-GF30相近;85℃、85%湿度(双85)环境试验1008 h后,FRPA56-GF30强度降低、韧性提升的趋势表现的更为明显;在相同模具和相同注塑工艺条件下,FRPA56-GF30脱模所需的顶出力更大,脱模性能较FRPA66-GF30要差。Nylon 56(PA56)/Glass Fiber 30(GF30)halogen-free flame-retardant material(FRPA56-GF30)and PA66/GF30 halogen-free flame-retardant material(FRPA66-GF30)were prepared by twin-screw extruder.The dimensional change after water absorption,dry properties,environmental resistance properties and demoulding properties of the two composites were compared.The results indicate that comparing with FRPA66-GF30,FRPA56-GF30 has smaller shrinking percentage,larger water absorption and larger dimensional change after water absorption.Under dry conditions,the mechanical properties are similar,the thermal deformation temperature is reduced,and the vertical combustion and CTI properties are similar.After heat age at 140℃for 1008 h,the retention of properties is similar to that of FRPA66-GF30.After age at 85℃and 85%RH(double 85)environmental for 1008 h,the strength decreases and the toughness increases more obviously with FRPA56-GF30.With the same mold and injection process,the demoulding force of FRPA56-GF30 is larger,the demoulding properties is worse than FRPA66-GF30.

关 键 词：玻璃纤维增强 无卤阻燃 生物基尼龙56 尺寸变化 环境试验 脱模性能 

分 类 号：TB324[一般工业技术—材料科学与工程]