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系统地研究了三嗪系列阻燃剂三烯丙基异三聚氰酸酯(TAIC)、二烯丙基溴丙基异三聚氰酸酯(DABC)、二(2,3-二溴丙基)烯丙基异三聚氰酸酯(DBAC)、三(2,3-二溴丙基)异三聚氰酸酯(TBC)等阻燃剂与三氧化二锑(Sb2O3)配合对丙烯酸系树脂的阻燃效果及其阻燃机理。氧指数(LOI)、热失重(TGA)、微分热失重(DTG)等研究表明,溴值低的DBAC、TBC和Sb2O3有协效作用,符合一般的卤-锑协同阻燃机理;而溴值高的TAIC、DABC和Sb2O3不但不具有协同效应,而且恶化原阻燃剂的阻燃效果;Sb2O3及其与三嗪系列阻燃剂配合阻燃丙烯酸系树脂,主要是发挥气相阻燃作用。 相似文献
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TBC学名为三(2,3-二溴丙基)异三聚氰酸酯,全名为1,3,5-三(2,3-二溴丙基)-均三嗪-2,4,6-三酮,它是一种新型、高效的添加型溴系阻燃剂。1974年,联邦德国开始研制,首先成功地用于发泡聚氨酯的阻燃。七十年代末,日本旭 相似文献
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一、前言三(2,3—二氯丙基)异三聚氰酸酯[Tris(2,3—dichloropropyl)isocyanurate,以下简称TCC]全名为1,3,5—三(2,3—二氯丙基)一均三嗪—2,4,6—三酮[1,3,5-Tris-(2,3-dichloropropyl)—s—triazine—2,4,6—trionc],是一种带三嗪环的添加型含氯氮阻燃剂,与高效含溴阻燃剂TBC属同一系列产品。具有优良的阻燃性能、极低的挥发性、良好的相 相似文献
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本文介绍了各种丙烯酸系聚合物阻燃剂的制备方法、性质和用途,其中包括有机磷酸酯和有机卤代磷酸酯、(2,3-二溴丙基)磷酸酯、含卤丙烯酸酯、铝系阻燃剂、卤化锡系列阻燃剂、卤化锑阻燃体系、2,3-二溴丙基羟基磷酸酯高效阻燃剂、甲基丙烯酸-2,3-二溴丙基酯以及烷(芳)基硫代次膦酸丙烯酯与甲基丙烯酸共聚物和含磷的甲基丙烯酸甲酯共聚物等。 相似文献
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TBC全称三(2,3—二溴丙基)异三聚氰酸酯,是一种带三嗪环的添加型高效溴系阻燃剂。具有优异的阻燃性、极低的挥发性和良好的相溶性,以及耐久、耐光、耐水和无毒等特性。属国外八十年代阻燃剂新品种,可广泛用作聚烯烃、发泡聚氨酯、不饱和聚酯、ABB、多种通用橡 相似文献
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<正> 一、前言阻燃剂TBC学名为三(2,3-二溴丙基)异三聚氰酸酯。是一种带三嗪环的添加型溴系阻燃剂,具有优异的阻燃性、很低的挥发性和良好的相容性,以及耐久、耐光、耐水和无毒等特性。可广泛用于聚烯烃、聚氨酯、聚苯乙烯、不饱和聚酯等塑料、多种橡胶和纤维的 相似文献
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TBC学名为三(2,3—二溴丙基)异三聚氰酸醋,是一种带三嗪环的添加型高效溴系阻燃剂。具有优异的阻燃性、极低的挥发性和良好的相溶性,以及耐久、耐光、耐水等特性。属国外高效燃阻剂的新品种,已广泛用于聚烯烃、发泡聚氨酯、不饱和聚酯、ABS、多种通用和特种橡胶以及合成纤维等的阻燃。 相似文献
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Preparation and Characterization of Two-component Waterborne Poly-urethane Comprised of Water-soluble Acrylic Resin and HDI Biuret 总被引:12,自引:0,他引:12
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ZHOUXinhua 《中国化学工程学报》2006,14(1):99-104
A two-component waterborne polyurethane (2K-WPU) was prepared by mixing water-soluble acrylic resin and hexamethylene diisocyanate biuret, and then diluted for phase inversion with water. Compared with water-soluble acrylic resin, the phase inversion of 2K-WPU occurs at lower water content. It is indicated by TEM that 2K-WPU particles show a core-shell structure, in which HDI biuret is encapsulated by hydrophilic acrylic resin. 2K-WPU emulsion with HDI biuret has larger particle size and narrower distribution index, while for 2K-WPU emulsion with HDI isocyanurate, the latex not only has large particle size, but also has two-peak distribution. FTIR shows that the reaction between HDI biuret and acrylic resin can complete in 12h. In addition, studies on effect of composition of acrylic resin on performance of 2K-WPU show that narrowing the polar difference between water-soluble acrylic resin and HDI biuret and improving the miscibility of two components are the key to prepare the transparent and high gloss films with high crosslinking density. 相似文献
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将三(2-羟乙基)异氰脲酸酯(THEIC)与丙烯酸(AA)在适当条件下进行酯化反应,合成了含三嗪环的多官能度丙烯酸酯单体.考察了催化剂种类和用量、原料配比、带水荆用量以及反应温度和时间等因素对酯化反应的影响,获得了较佳的反应条件:THEIC与AA以及甲苯与环己烷的质量比均为1:2,以对甲笨磺酸为催化剂,其用量为THEI... 相似文献
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三(环氧丙基)异氰尿酸丙烯酸酯的合成及应用 总被引:2,自引:2,他引:0
以三(环氧丙基)异氰尿酸酯作为树脂基体,经丙烯酸加成酯化,得到了三官能团环氧丙基异氰尿酸丙烯酸酯(TGICA)。研究了催化剂种类、原料配比、阻聚剂种类、酯化温度及反应时间对产物性能的影响。结果表明,合成TGICA的最优化条件为:n(TGIC)/n(AA)=1∶2 79;催化剂为N,N-二甲基苯胺;阻聚剂为2,6-二叔丁基对甲酚;反应温度(105±2)℃;反应时间3h。丙烯酸的转化率可达到99 7%。应用研究表明TGI CA是一种性能优异,价格低廉且合成方法简单的紫外光固化涂料成膜树脂。 相似文献
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用差示扫描量热仪(DSC)、傅立叶交换红外光谱(FT-IR)对不同配比的低溴环氧/氰酸酯树脂的共固化反应机理以及固化物的结构特征进行了研究,同时测定和讨论了其层压板的耐热性和介电性能等。研究结果表明,在低溴环氧/氰酸酯树脂的固化体系中,氰酸酯和环氧树脂通过两种途径反应最终生成噁唑烷酮结构:固化反应温度与体系的组成有关,体系中低溴环氧树脂减少固化反应温度降低:加入催化剂能明显促进体系共固化反应,同时也降低了层压板的耐热性和介电性能。在性能方面,低溴环氧树脂中加入氰酸酯使共固化物耐热性增加、Tg升高,但氰酸酯用量增加到一定范围后,低溴环氧树脂/氰酸酯配比对Tg影响不大;低溴环氧树脂/氰酸酯层压板的耐热性和介电性能在一定实验范围内随着氰酸酯用量的增加明显提高。 相似文献
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A commercial surgical bone cement has been modified by adding tricalcium phosphate (TCP), hydroxyethyl methacrylate (HEMA), and ethylene glycol dimethacrylate (EGDMA). The effects of the addition of TCP, HEMA, and EGDMA on the vinyl polymerization kinetics and thermal stability of the bone cement have been evaluated. The reaction rate constants (k) were determined from a kinetic analysis. The separate and combined effects of TCP, HEMA, and EGDMA contents on the rate and the heat of polymerization can be explained by the frequency factor and the activation energy. The decomposition temperture of the modified acrylic bone cement was studied by thermogravimetry. The decomposition temperature increased with TCP content, whereas HEMA and EGDMA had little effect on the decomposition temperature. 相似文献
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The 13C-NMR approach to quantitative analysis of a polyester resin synthesized from dimethylterephthalate, ethylene glycol, tris-(2-hydroxyethyl)isocyanurate (THEIC), and glycerol is presented. Various glyceride and isocyanurate structures formed during the esterification have been identified and analyzed, at first in simple model systems and then in the structure of the resin. The contents of particular structural units were determined as well as a hypothetical average macromolecule of the resin defined. The assignments of 13C-NMR signals were made and correlated with the 1H shifts using a 2D-HETCOR experiment. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 70: 675–687, 1998 相似文献