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氰醇

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Resins: gum dammar; PU dispersion; silicone resin, epoxy resin, alkyd, acrylic Resin, polyester resin, urethane resin, polyamide resin, amino hardener; two pack hydroxy acrylic, two pack isocyanate-free acrylic; vinyl chloride co-polymers, polyvinyl butyrals, thixotropic resin.

树脂类:达玛树脂;水性PU分散体;有机硅、环氧、醇酸、丙烯酸、聚酯、聚氨酯、聚酰胺、氨基固化剂;双组份羟基丙烯酸、双组份不含异氰酸脂丙烯酸;聚氯乙烯共聚物、聚乙烯醇缩丁醛、触变性树脂。

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯,反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡,并用丙烯酸酯进行稀释,反应后降温乳化,用多元胺扩链剂在水中进行扩链反应,得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体,然后再通过加入引发剂过硫酸钾进行乳液聚合。

It discovered that increasing alcohol is equal to reducing water in order to improve the isocyanate proportion reacted with alcohol.

研究揭示,为了提高异氰酸酯与醇反应的比例,增加竞争反应体系中醇浓度或降低水浓度是等效的。

Toxic effects of twelve pesticides(abamectin, endosulfan, diflubenzuron, danitol, tricyclazole, fluroxypyr, imazalil, tebuconazole, sulfapyridine, sulfamethoxazole, sulfamethazine and sulfadiazine)at low concentration(0.01mg·L-1) on the development of sea urchinembryos were investigated in this work, and the correlation between n-octanol/water partition coefficientand relative lethality rate was investigated.

为了研究低浓度下农药对海胆胚胎的毒性影响,以及正辛醇/水分配系数与致死率的关系,实验研究了12种常见农药(阿维菌素、硫丹、除虫脲、甲氰菊酯、三环唑、使它隆、抑霉唑、戊唑醇、磺胺吡啶、磺胺甲噁唑、磺胺二甲嘧啶和磺胺嘧啶)在低浓度(0.01mg.L-1)下对光棘球海胆胚胎发育的急性毒性影响。

In this article, we have been investigated that synthesizing and properties of shape memory polyurethane. The shape memory polyurethane was synthesized from PCL diol, MDI(4, 4'-diphenylmethane diisocyanate) and BDO (1,4-butanediol) in this experiment. We analyzed that the effect of differential mole ratio of monomers to synthesized SMPU. Besides, the various concentrations of Nano-silver were mixed with SMPU. Mechanical properties and shape memory behavior of SMPU nanocomposite films were investigated.

本研究目的为藉由改变4,4'-二苯甲基二异氰酸盐(4,4'-diphenylmethane diisocyanate, MDI)/聚己内酯二元醇(polycaprolactone diol, PCL diol)/1,4-丁二醇(1,4-butanediol, BDO)等不同莫耳比制备形状记忆型聚氨基甲酸酯(Shape Memory Polyurethane, SMPU);并探讨改变不同单体莫耳比及添加不同浓度奈米银溶液对其物性及形状记忆性的影响。

By two steps, the material is obtained by the method that polyhydric alcohol, diisocyanate and a diatomic alcohol chain extender with 8-18 C-structural branch chains are mixed and poured into a polyurethane elastomer that achieves a damping effect through the combination and dissociation of a hydrogen bond between the branch chain and the main chain for consuming energy.

该类材料是通过两步法将多元醇、二异氰酸酯和带有8~18个C结构支链的二元醇扩链剂混合浇注成聚氨酯弹性体,通过支链与主链之间氢键的结合与解离消耗能量,起到阻尼效果。

The OH-terminated linear aliphatic polyester polybutylene sebacate was synthesized by sebacic acid and butancdiol using solution polycondensation combined with melt polycondensation. The composition and construct characteristic of the product were analyzed by GPC, FT-IR and 1HNM.

以丁二酸和丁二醇为原料,采用溶液与熔融结合法合成了端羟基聚丁二酸丁二醇酯,用甲苯-2,4-二异氰酸酯对PBS封端,合成了线性遥爪型纸张增强剂TDI-PBS。

A series of modified polyurethane elastomer materials with different amino siloxane content were synthesized,which were based on polyoxypropylene glycol,aminoethyl aminopropyl poly,toluene diisocyanate and the curing agent dimethylsulfide toluylenediamine.

以聚氧化丙烯二醇或聚氧化丙烯三醇、氨乙基氨丙基聚二甲基硅氧烷、甲苯二异氰酸酯为原料在无溶剂条件下制备预聚体,利用二甲基硫甲苯二胺为固化剂合成一系列氨基硅油改性聚氨酯弹性体材料,并对材料的力学性能、耐热性、表面水接触角等性能进行了测试。

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法,由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成,使用时将A液和B液分别加热至65℃后混合,然后快速喷涂固化形成涂层。

Flame—retardant resin was prepared by the condensation and polymerization of phosphoric acid, trihydroxy methyl propane and epoxy chloropropane,the resin was then reacted with hexane diacid and diglycol under certain condition ,resulting in polyol containing 1.5% P and 17— 18% polyester polyol, which was foamed with polyisocyanate, water and catalyst by one— step method, producing fire...

通过磷酸、三羟甲基丙烷和环氧氯丙烷的缩合和聚合反应制得阻燃树脂,然后将它与己二酸、一缩二乙二醇在一定条件下反应制得含P1.5%和含Cl17~18%的聚酯多元醇,再将它与多异氰酸酯、水、催化剂等组分采用一步法发泡工艺制得阻燃聚氨酯软泡塑料。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

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关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。