全氟丁基磺酸钾协同阻燃PC.pdf

第42卷第4期
塑料工.业
2014年4月
CHINA PLASTICS INDUSTRY
101
新技术与
六苯氧基环三磷腈/全氟丁基磺酸钾
产品开发
协同阻燃PC
徐路,王玉冲,刘雨佳,李婷,杨晶巍,唐林生“
(青岛科技大学化工学院,山东青岛266042)
摘要;通过极限氧指数测定、垂直燃烧实验和锥型量热仪研究了六苯氧基环三磷腈( HPTCP)/全氟丁基磺酸钾
(PPBS)对聚碳酸酯(PC)的协同阻燃作用。结果表明,与单独使用 HPTCP或PPBS相比,添加含极少量
(0.05%) PPFBS的复合阻燃剂( HPTCP/ PPFBS),可使PC的阻燃级别显著提高,燃烧变慢,总热释放量、平均有效
燃烧热明显降低,点燃时间明显増加,即复合极少量的 PPFBS能明显提高 HPTCP对PC的阻燃作用;单独使用
HPTCP或 PPFBS可显著改善PC的热稳定性,而使用 HPTCP/ PPEBS复合阻燃剂对PC热稳定性的影响较小。 HPI'CP
是通过气相和凝聚相同时产生阻燃作用的,它能促进PC成炭,形成膨胀性炭层,并通过隔热、隔氧及阻止分解产物
挥发而产生阻燃作用,复合极少量的 PPFBS能显著增加阻燃PC的成炭量,因而改善了 HIPTCP的阻燃作用。
关键词:六苯氧基环三磷腈;全氟丁基磺酸钾;聚碳酸酯;协同阻燃然
DOL:10.3969/j.iss1005-5770.2014.04.025
中图分类号:TQ314.24'8:;TQ323.4+1
文献标识码:A
文章编号:1005-5770(2014)04-0101-05
Synergistic Flame Retardancy of Hexaphenoxycyclotriphosphazene
and Potassium Perfluorobutane Sulfonate in PC
XU Lu, WANG Yu-chong, LIU Yu-jia, LI Ting, YANG Jing-wei, TANG Lin-sheng
( College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract The synergistic flame retardancy of hexaphenoxyeyclotriphosphazene(HPTCP )and
potassium perfluorobutane sulfonate (PPFBS) in polycarbonate(PC)was studied by limiting oxygen index
measurement, vertical burning and cone calorimeter test. The results showed that HPTCP/PPFBS with a very
small amount of PPFBS (0.05%) had a slightly decreased LO/, but signifieantly improved burning rating
and was burned more slowly. the total heat release and average effective heat of combustion were significantly
reduced, time to ignition inereased obviously compared with FR-PC alone with HPTCP or PPFBS, which
showed that the flame retardancy of HPTCP in PC could be significantly improved by combining a very small
amount of PPFBS. Using HPTCP or PPFBS could improve the thermal stability of PC, but HPTCP/PPFBS
had little effect on the thermal stability. HPTCP played flame retardancy effect by gas and condensed phase
mechanisms. HPTCP could promote the carbonization of PC, the formed intumescent layer resulted in a flame
retardancy by the barrier effect on heat, air and decomposition products. Combining a very small amount of
PPFBS could significantly improve the charring, thus improved the flame retardancy of HPTCP
Keywords: Hexaphenoxycyclotriphosphazene; Potassium Perfluorobutane Sulfonate; Polycarbonate;
Synergistic Flame Retardancy
聚碳酸酯(PC)具有一定的阻燃性,但不能满燃剂。由于含溴阻燃材料热裂时产生的腐蚀性气体,
足阻燃级别要求更高的场合,必须对PC进行阻燃改可能使电气设备中的关键部件受损而导致整套设备失
性。常用于阻燃PC及其合金的阻燃剂主要是溴系阻灵,有些溴系阻燃剂,如十溴二苯瞇,不符合欧盟
*国家自然科学基金项目(21276131),青岛科技大学引进人オ科研启动基金(0022575)
**联系人linshengt62@163.com
作者简介:徐路,男,1987年生,硕士研究生,主要从事精细化学品的研究