中国塑料

中国塑料 ›› 2015, Vol. 29 ›› Issue (12): 29-33 .DOI: 10.19491/j.issn.1001-9278.2015.12.006

• 材料与性能 • 上一篇    下一篇

MG-MUF包覆阻燃EPS泡沫及力学性能研究

王雅珍1,常海洋2,何子健2,王旭3,王凤超2   

  1. 1. 齐齐哈尔大学材料学院2. 黑龙江省齐齐哈尔大学3. 齐齐哈尔大学
  • 收稿日期:2015-07-13 修回日期:2015-10-03 出版日期:2015-12-26 发布日期:2015-12-26

Flame Retardancy and Mechanical Properties of EPS Foams Coated with MG-MUF

  • Received:2015-07-13 Revised:2015-10-03 Online:2015-12-26 Published:2015-12-26

摘要： 采用经Hummers法制成的改性石墨(MG)为阻燃成分，让其与经聚乙烯醇改性的脲醛树脂(MUF)进行原位插层聚合，得到的MG-MUF作为可发性聚苯乙烯(EPS)的包覆阻燃剂。选用最佳预发泡工艺处理的EPS珠粒为芯材，包覆剂在一定含量的复合型固化剂作用下与EPS珠粒共混，经热蒸汽膨胀模压成型。对包覆样板进行阻燃性能、保温性能和力学性能测试。结果表明，阻燃剂MG含量为20 %、包覆比为3：1的样板的极限氧指数为30.5 %，而其水平燃烧等级达HF1级，综合性能较好。

关键词: 可发性聚苯乙烯, 保温材料, 阻燃材料, 改性脲醛树脂

Abstract: Modified graphite (MG) was prepared by Hummers method, which was introduced into PVA modified ureaformaldehyde resin (MUF) by insitu intercalation polymerization. The obtained compound resin MGMUF was used as coating of preexpanded polystyrene (EPS) beads. The coated beads were thermally pressed into templates, whose flame retardantcy, thermal insulation properties, and mechanical strength were characterized. When MG in MGMUF was 20 % and the coat ratio was 3：1, the limiting oxygen index of retardant templates reached 30.5 %, the horizontal burning grade of the template was HF-1.

Key words: epolystyrene, thermal insulating material, fire-retardant material, modified urea-formaldehyde resin

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