苯并噁嗪与微胶囊红磷及丁腈橡胶对ABS的阻燃增韧  

Non-Halogen Flame Retardant ABS with High-Performance Based on Benzoxazines

作　　者：王光开[1] 杨兵[1] 范志山[1] 林晓丹[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640

出　　处：《高分子材料科学与工程》2012年第11期38-41,共4页Polymer Materials Science & Engineering

摘　　要：采用苯并噁嗪(BOZ)与微胶囊化红磷(MRP)复配制备了无卤阻燃丙烯腈-丁二烯-苯乙烯共聚物(ABS)。研究了BOZ/MRP质量比和用量对阻燃ABS性能的影响。然后固定BOZ和MRP的用量,考察丁腈橡胶(NBR)的添加量对BOZ/MRP/ABS阻燃体系阻燃性能和力学性能的影响。结果表明,BOZ/MRP质量比为3:2,总量为20%(质量分数)时,可制得氧指数(LOI)达24.4%,垂直燃烧达UL-94 V-0级的无卤阻燃ABS;BOZ受热产生的酚羟基与红磷燃烧产生的氧化磷等发生酯化反应减缓了ABS的分解;NBR添加量为8%时,阻燃体系垂直燃烧达V-0级,拉伸强度为30.8 MPa,缺口冲击强度达11.4 kJ/m2。Non-halogen flame retardant ABS was prepared by using benzoxazine （BOZ） and microencapsulated red phosphorus （MRP）. The effects of components ratios and contents of BOZ/MRP on properties of flame retardant ABS were studied, the effects of nitrile butadiene rubber （NBR） on flame retardant properties and mechanical properties of BOZ/MRP/ABS were investigated. When BOZ /MRP mass ratio is 3：2 and the total content is 20 %, limited oxygen index （LOI） of non-halogen flame retardant ABS is 24.4 % , and the vertical burning reaches UL-94 V-0 level. FT-IR shows that - OH from heated BOZ reacted with phosphorus oxide etc generated from burning red phosphorus, which increases the char residues of the flame retardant ABS. When the content of NBR is 8 %, a flame retardant ABS of UL-94 reaches V-0 level, with tensile strength of 30.8 MPa, notched impact strength of 11.4 kJ/m2.

关 键 词：丙烯腈-丁二烯-苯乙烯共聚物 苯并噁嗪 微胶囊化红磷 无卤阻燃 丁腈橡胶 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]