MUF/橡实果壳复合轻型材料的制备与增强改性  

Preparation and Reinforced Modification of MUF/Acorn-Hull Light-Weighted Composites

作　　者：李守海[1] 王春鹏[1,2] 夏建陵[1,2] 许玉芝[1,2] 储富祥[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业局林产化学工程重点开放性实验室,生物质化学利用国家工程实验室,南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《工程塑料应用》2013年第2期10-15,共6页Engineering Plastics Application

基　　金：国家科技支撑计划课题"林木资源化学深加工关键技术研究及示范"(2012BAD24B04)

摘　　要：以可发性三聚氰胺改性脲醛树脂(MUF)为基体原料,采用共发泡技术制备了MUF/橡实果壳复合轻型材料,并对其力学性能、阻燃性能和易碎性能进行了分析。结果表明,随着橡实果壳质量分数的增加,复合轻型材料的阻燃性能略微提高,但其力学性能和易碎性能大大降低。为改善复合轻型材料的综合性能,研究了J–100型交联改性剂对其综合性能的影响。研究发现,加入J–100型交联改性剂能大大改善复合轻型材料的力学性能和易碎性能,当加入纯MUF固含量1%的J–100型交联改性剂时,与未加入时相比,复合轻型材料的压缩强度提高10倍多,弯曲强度提高6倍,其易碎性能亦大大降低,阻燃性能亦略微有所提高。改性MUF/橡实果壳复合轻型材料具有优异的综合性能并可取代传统的轻质化材料。Melamine-urea-formatdehyde（MUF） / acorn-hull light-weighted composites were prepared via a co-foaming technique using MUF resin as matrix material. The mechanical, flame-retardant properties and friability of light-weighted composites were investigated. The results show that their flame-retardant properties slightly increase with mass fraction of acorn-hull increasing, while the mechanical properties and friability decrease greatly. Thus J-100 crosslinking modifying agent is added into pre-foaming system in order to improve their comprehensive properties, the results display that it can significantly improve the mechanical properties and friability, and compressive strength of the composite enhance more than 10 times and bending strength enhance 6 times comparing with that of the composite without modification when J-100 crosslinking modifying agent centent is 1% of the pure MUF solids mass, their friability also decreased greatly, moreover, the flame-retardant properties slightly improve, The MUF / acorn-hull light-weighted composites have excellent properties enough to replace the conventional light-weighted materials.

关 键 词：橡实果壳 三聚氰胺改性脲醛树脂 共发泡技术 轻型材料 增强改性 

分 类 号：TQ328[化学工程—合成树脂塑料工业]