报道了顺丁烯二酸二间甲苯酯和邻苯二甲酸二间甲苯酯的合成与光谱性质。
The syntheses and spectral characteristics of bism-methylbenzene maleate and bis-m-methylbenzene phthalate is reported in this paper.
通过苯酚和碳酸二甲酯的酯交换反应合成了碳酸甲苯酯,采用减压精馏对其进行了分离提纯,得到纯度>99.5%的碳酸甲苯酯;
Methyl phenyl carbonate(MPC) was prepared by transesterification of dimethyl carbonate(DMC) with phenol and the product with a purity exceeding 99.5% was obtained by vacuum distillation.
另外,公司还可提供各种品牌的进口甲苯二异氰酸酯。
In addition, the company also offers a variety of brands of imported toluene diisocyanate.
在采用高真空两级薄膜蒸发分离甲苯二异氰酸酯(TDI)-三羟甲基丙烷(TMP)聚氨酯固化剂中游离TDI的实验研究基础上,进行了中试研究。
The free toluene diisocyanate(TDI) in the curing agent TDI-TMP(Trimethylol Propane) of polyurethane was separated in laboratory by means of high-vacuum two-stage thin-film evaporation.
利用正交设计法研究由丙烯酸和十六醇为原料,对甲苯磺酸为催化剂,采用微波加热法合成丙烯酸十六酯。
The orthogonal design was utilized to study the hexadecyl acrylate synthesis by microwave irradiation using acrylic acid and hexadecyl alcohol as raw materials and toluene-p-sulfonic acid as catalyst.
探讨了以负载型对甲苯磺酸为催化剂合成乙二醇硬脂酸单酯的工艺。
The synthesis of ethylene glycol mono stearate by supported p-toluene sulfonic acid was investigated.
用对甲苯磺酸酸式水解烃羧酸甲酯基和烃羧酸高碳醇酯基双官能基硅油,并和碱性水解的效果比较。
The modified silicone was hydrolysed by toluene-p-sulfonic acid, and the hydrolysis ratios in acid and base were compared.
所用的二异氰酸酯包括甲苯二异氰酸酯。
分析了由TDI(甲苯二异氰酸酯)闪蒸罐至除氧器冷凝水管道泄漏的原因,提出了解决方法。
The reason for leakage of condensate pipeline from toluene diisocyanate (TDI) flash tank to deaerator is analyzed and the solution is put forward.
建立了用毛细管气相色谱法测定甲苯二异氰酸酯纯度的方法。
The method that analyzes the purity of toluene diisocyanate by capillary gas chromatograph was established.
吸入病人应避免进一步接触甲苯二异氰酸酯,如果出现症状,给氧、支气管扩张剂和皮质类固醇。
After inhalation the patient should be kept from further contact with toluene di-isocyanate and, if symptomatic, be given oxygen, bronchodilators, and corticosteroids.
研究了以过氧化苯甲酰(BPO)为引发剂、甲苯为溶剂的SBS接枝丙烯酸酯共聚反应。
The grafting-copolymerization of acrylate to SBS block copolymer in toluene solution with BPO as initiator was studied.
这种酯或其混合物,也可由硝基苯,硝基甲苯,二硝基甲苯或三硝基苯等附加物来改性。
Such esters, or mixtures thereof may also be modified by additives such as nitrobenzene, nitrotoluence, dinitrotoluene or trinitrololuene .
目的观察甲苯二异氰酸酯(TDI)对气道反应性的影响。
Objective to observe the airway responsiveness changes influenced by toluene diisocyanate (TDI).
以草酸和正丁醇为原料,采用颗粒状活性炭固载对甲苯磺酸作催化剂合成草酸二丁酯。
Dibutyl oxalate was synthesized with oxalic acid and n-butanol as raw materials and p-toluene sulphonic acid supported on granular active carbon as the catalyst.
实验研究工作以四针状氧化锌晶须为填料,以聚乙烯醇和聚甲基丙烯酸甲酯为基体,以水和甲苯为溶剂,制备出了性能良好的导电膜。
In the study on manufacture of the composites, tetrapod-like ZnO whiskers, PAV and PMMA, water and toluene, are employed as conductive fillers, matrix materials and solvents respectively.
甲苯二异氰酸酯(TDI)是异氰酸酯化合物中应用最广泛的品种之一,其工业生产主要采用胺光化法。
Toluene diisocyanate (TDI) is one of the most useful kinds of isocyanateth that is produced by the method of phosgenation of amine.
介绍了用苯甲酸改性的含羟基醇酸树脂和甲苯二异氰酸酯(TDI)预聚物的合成工艺,以及由二者制成醇酸型聚氨酯涂料的方法;
The synthetic process of a prepolymer based on benzoic acid modified hydroxyl alkyd resin and toluene diisocyanate (TDI) prepolymer and the coatings made from this prepolymer has been described.
介绍了以二苯甲烷二异氰酸酯(MDI)、多元醇、甲苯和磷酸三丁酯为原料合成橡胶地毯用静电植绒胶的中试工艺路线。
The technology of pilot scale run of electrostatic flocking onto rubber rug with MDI, polyols, toluene and tributyl phosphate as the raw materials was reviewed.
结果各样品中易挥发的主要成分为甲苯、丁酮、汽油、醋酸乙酯、丙酮等,其急性毒性分级均为低毒。
Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity.
以聚醚多元醇、石油沥青、甲苯二异氰酸酯、稀释剂及相溶化助剂等为原料,制备了一种湿固化单组分防水涂料。
A moisture curable one component waterproof coatings was prepared from polyether polyols, petroleum asphalt, toluene diisocyanate, diluent and a compatibility modifier, etc.
研究了2,4-甲苯二异氰酸酯对小鼠的急性经口的毒性以及其对小鼠骨髓嗜多染红细胞微核率的影响。
Studied the acute toxicity effect of 2,4tolylene diisocyanate on mice by mouth and the influence of micronucleus frequency of mice bone marrow.
以混合聚醚多元醇、甲苯二异氰酸酯为主要原料,环氧树脂、羟基丙烯酸树脂为改性剂合成了湿固化聚氨酯涂饰剂。
The moisture cured polyurethane was synthesized with mixing polyether diol, toluene diisocyanate (TDI) as main raw materials, epoxy resin and hydroxy acrylic resin as modifiers.
以甲酚钠和氧氯化磷为原料,在相催化剂的作用下,合成三甲苯磷酸酯。
Tricresylphosphate was synthesized under the function of phase transfer catalyst, based on the raw materials of sodium cresol and phosphorus oxychloride.
以丙三醇和乙酸为原料,用对甲苯磺酸作催化剂,甲苯为带水剂,合成三醋酸甘油酯。
Glycerol triacetate was synthesized from glycerol and acetic acid using p -toluene sulphonic acid as catalyst and toluene as water-carrying agent.
研究表明甲苯二异氰酸酯对聚乙烯醇缩醛胶粘剂耐水性改性是可行的并且能提高胶粘剂的粘接强度。
The results of this paper have shown that it is successful for improvement on the water proof and adhesive strength of PVF with TDI.
在此采用半封闭的甲苯二异氰酸酯作为固化剂制得了环氧树脂阴极电泳涂料。
The cathodic electrophoretic coating of epoxy resin was prepared with half blocked isocyanate as curing agent.
然后利用相似相溶原理选择了四种有机溶剂进行剥离实验:丙酮、二甲苯、二甲基甲酰胺及乙酸乙酯。
Then, chose acetone, ethyl acetate, xylene and dimethylformamide according to solubility parameter close principle as solvents to dissolve coating finishing agents.
然后利用相似相溶原理选择了四种有机溶剂进行剥离实验:丙酮、二甲苯、二甲基甲酰胺及乙酸乙酯。
Then, chose acetone, ethyl acetate, xylene and dimethylformamide according to solubility parameter close principle as solvents to dissolve coating finishing agents.
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