Page 212 - 《精细化工》2020年第9期
P. 212
第 37 卷第 9 期 精 细 化 工 Vol.37, No.9
202 0 年 9 月 FINE CHEMICALS Sept. 2020
橡塑助剂
改性密胺甲醛树脂包覆红磷及其对 PP 性能的影响
2*
1
2
董天贺 ,孙 悦 ,孙才英
(1. 东北林业大学 园林学院,黑龙江 哈尔滨 150040;2. 东北林业大学 化学系,黑龙江 哈尔滨 150040)
摘要:为了减少密胺甲醛树脂(MF)包覆红磷(MFRP)在其阻燃材料加工过程中产生磷化氢气体(PH 3 ),通
过添加改性剂(乙二醇、己二胺)对 MF 进行改性,再包覆红磷(RP),得到改性密胺甲醛树脂包覆红磷(M-MFRP),
比较了 MFRP 和 M-MFRP 阻燃处理 PP 加工时 PH 3 的释放量。在 PP 加工条件下,添加 10%(以 PP 质量计,下
同)阻燃材料时,MFRP-PP 释放 24.13 mg/L 的 PH 3 ,而 M-MFRP-PP 释放的 PH 3 量降到 8.05 mg/L。并分别对两
种阻燃 PP 进行了阻燃性能、力学性能、热分解性能分析。结果发现,M-MFRP 对 PP 的阻燃性能、力学性能、
热分解性能以及残炭外貌的影响与 MFRP 差别不大,热分解挥发产物基本相同,火行为相似。
关键词:密胺甲醛树脂;包覆红磷;改性;阻燃性;PP;橡塑助剂
中图分类号:TQ314.24 文献标识码:A 文章编号:1003-5214 (2020) 09-1926-07
Red phosphorus coated with modified melamine formaldehyde resin and
its impact on the performance of PP
1
2*
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DONG Tianhe , SUN Yue , SUN Caiying
(1. College of Landscape Architecture, Northeast Forestry University, Harbin 150040, Heilongjiang, China;
2. Department of Chemistry, Northeast Forestry University, Harbin 150040, Heilongjiang, China)
Abstract: In order to reduce phosphine gas (PH 3) produced by red phosphorus (RP) coated by melamine
formaldehyde resin (MF) during the processing of flame retardant materials, red phosphorus coated with
modified melamine formaldehyde resin (M-MFRP) was prepared by modified melamine formaldehyde
resin (M-MF), in which M-MF was modified by glycol or hexamethylenediamine. The release amounts of
PH 3 from MFRP and M-MFRP flame retardant PP (MFRP-PP and M-MFRP-PP) were compared. The
results showed that when the additive amount of flame retardant was 10% (based on the mass of PP), the
release amount of PH 3 from MFRP-PP was 24.13 mg/L, while that from M-MFRP-PP was reduced to 8.05
mg/L, indicating that red phosphorus coated with modified MF could reduce PH 3 release during the
processing of PP. The flame retardant properties, mechanical properties, thermal degradation performance
of the prepared MFRP-PP and M-MFRP-PP were evaluated. It was found that the effect of M-MFRP on the
flame retardant properties, mechanics performance and thermal performance was similar to those of MFRP.
The volatile products of thermal decomposition were basically the same and the fire behavior was similar.
Key words: melamine formaldehyde resin; coated red phosphorus; modification; flame resistance; PP;
rubber and plastics auxiliaries
红磷(RP)因具有较好的阻燃性能,在磷系阻 燃低密度聚乙烯(LDPE),结果发现,LDPE/10MRP
燃剂中占有重要的位置 [1-5] 。但由于其性质较活泼, /30AHP 的极限氧指数(LOI)值达到 25.5%,并通
[7]
储存和应用过程中易产生有毒的 PH 3 气体,同时颜 过 UL-94 V-0 级。WU 等 发现,MRP 可以赋予环
[8]
色为深红色,影响阻燃材料的外观,制约了其应用。 氧树脂 E-44 良好的阻燃性能。LIU 等 用 MRP 阻
[6]
包覆改性是拓展其应用的方法之一。WANG 等 将 燃高抗冲聚苯乙烯/氢氧化镁复合材料,LOI 值能达
微胶囊化红磷(MRP)与次磷酸铝(AHP)共同阻 到 24.2%,并且通过 UL-94 V-0 级。
收稿日期:2020-02-09; 定用日期:2020-05-22; DOI: 10.13550/j.jxhg.20200086
基金项目:东北林业大学 2018 年度中央高校基本科研业务费专项资金项目(2572018BK04)
作者简介:董天贺(1990—),男,讲师。联系人:孙才英(1964—),女,教授,E-mail:sundeyee@126.com。