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摘要
选择氢氧化铝、六(4-醛基苯氧基)环三磷腈(PNCHO)、六(4-羟甲基苯氧基)环三磷腈(PNOH)、六(2,4,6-三溴苯氧基)环三磷腈(PNBr)、联二脲(DBH)和八苯基聚倍半硅氧烷(POSS)作为不饱和聚酯树脂包覆层的填料,经复配、固化,制备出不饱和聚酯树脂包覆层,分别考察了填料种类和用量对不饱和聚酯树脂包覆层的热导率、线膨胀系数和动态热失重性能的影响。结果表明,填料可使不饱和聚酯树脂包覆层的热导率提高,且热导率随填料用量的增加和填料粒径的增大而升高;不饱和聚酯树脂包覆层的线膨胀系数随填料用量的增加而降低。而当填料用量相同时,大粒径填料填充的包覆层的线膨胀系数均比小粒径填料填充的高。PNCHO、PNOH、PNBr和POSS均能够明显提高不饱和聚酯树脂包覆层的耐热性。
Abstract
Modified unsaturated polyester resin inhibitors were prepared via compounding and curing reaction using aluminum hydroxide [Al(OH)3],hexa (4-aldehydephenoxy) cyclotriphosphazene (PNCHO),hexa(4-hydroxyphenoxy)cyclotriphosphazene(PNOH),hexa(2,4,6-tribromophenoxy)cyclotriphosphazene(PNBr),biuret(DBH) and octaphenylpolysilsesquioxane (POSS) as fillers.The effects of filler types and dosages on the thermal conductivity,linear expansion coefficient and dynamic thermogravimetric property of unsaturated polyester resin inhibitors were investigated.The results showed that the fillers could improve the thermal conductivity of unsaturated polyester resin inhibitors,and the thermal conductivity increased with the increase of filler dosage and particle size.The linear expansion coefficient of unsaturated polyester resin inhibitors decreased with the increase of filler content.When the filler contents were the same,the linear expansion coefficients of inhibitors filled with large particle size fillers were all higher than those filled with small particle size fillers.PNCHO,PNOH,PNBr and POSS could significantly improve the heat-resistance of unsaturated polyester resin inhibitors.
关键词
应用化学
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填料
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不饱和聚酯树脂
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包覆层
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耐热性
Key words
applied chemistry
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filler
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unsaturated polyester resin
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inhibitor
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heat-resistance
填料对不饱和聚酯树脂包覆层耐热性影响研究[J].
化工新型材料, 2023, 51(3): 160-165 DOI:10.19817/j.cnki.issn1006-3536.2023.03.029
[1] 张以河,孙维钧,孙隆丞,等.高分子材料在固体火箭包覆层中的应用[J].工程塑料应用,1994,22(5):37-41.
[2] 侯林法,张春森,周学刚,等.复合固体推进剂[M].北京:宇航出版社,1994.
[3] 沈开猷.不饱和聚酯树脂及其应用[M].北京:化学工业出版社,2001.
[4] 李玲.不饱和聚酯树脂及其应用[M].北京:化学工业出版社,2012.
[5] 李东林,曹继平,王吉贵.不饱和聚酯包覆层的耐烧蚀性能[J].火炸药学报,2006,29(3):17-19.
[6] 阿兰·达文纳斯.固体火箭推进技术[M].北京:航天工业总公司第三十一研究所,1995.
[7] 赵凤起.印度固体火箭推进剂的包覆技术及其发展[J].飞航导弹,1993,(1):40-43.
[8] Well E,Mcswigan B.Melamine phosphates and pyrophosphates in flame-retardant coatings:old products with new potential[J].Journal of Coatings Technology,1994,66(839):75-82.
[9] 赵凤起,王新华.应用于绝热包覆层中的填料及其选用的某些规律初探[J].火炸药学报,1994,(1):34-38.
[10] 詹惠安,郑邯勇,赵文忠,等.固体推进剂包覆层的研究进展[J].舰船防化,2009,(3):1-5.
[11] 肖啸,吕玺,魏乐,等.烯丙基苯氧基环三磷腈改性不饱和聚酯树脂包覆层研究(Ⅱ).力学性能与耐热、耐烧蚀性[J].火炸药学报,2021,44(5):680-685.
[12] 肖啸,甘孝贤,刘庆,等.六(4-醛基苯氧基)环三磷腈的合成、表征及其热性能研究[J].化学推进剂与高分子材料,2011,9(5):72-75.
[13] Van Krevelen D W.Properties of polymers,their estimation and correlation with chemical structure[M].Amsterdam-Oxford-New York:Elsevier Scientific Publishing Company,1976.
