丙烯酸的
- 与 丙烯酸的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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可为省内外客户办理运输;靠优质特价,我厂经销商和用户遍布全国各地;来电话即可告之最低价格;,超低价的优质产品种类:★专业生产:数千种色油漆,银粉漆,调合漆,醇酸油漆,硝基油漆,有机硅漆,丙烯酸漆,防锈漆,马路划线漆,耐热耐高温漆,工程用漆,快干油漆,白厚漆,铅油,过氯乙烯漆,环氧漆,聚氨酯漆,醇酸磁漆,沥青漆,过氯乙烯漆,环氧树脂漆,环氧有机硅高温漆,环氧煤沥青漆,环氧富锌底漆,有机硅高温防腐漆,亚光漆,无光漆,钢铁用漆,各色过氯乙烯防腐漆,速干银粉漆,快干银粉漆,银粉防锈磁漆,银浆防锈磁漆,银粉磁漆,银浆漆,铝银粉漆,铝银浆漆,铝粉漆,铝银浆,银粉,丙烯酸工程漆,丙烯酸机械漆,丙烯酸防腐漆,丙烯酸马路划线漆,快干防锈漆,带锈防锈漆,防锈底漆,黑防锈漆,白防锈漆,铁红防锈漆,中灰防锈漆,灰防锈漆,红丹防锈漆,底漆,面漆,磁漆,建筑工程用漆,钢铁工程用漆,地坪漆,路牙石标志漆,小区标志漆,小区划线漆,公路划线漆,硝基磁漆,硝基面漆,硝基底漆,硝基外用磁漆,硝基内用磁漆,硝基铁器漆,硝基木器漆,硝基清漆,耐高温银粉漆,耐高温防锈漆,有机硅耐高温漆,有机硅耐热漆,耐热耐高温油漆,钢结构漆,沥清漆,环氧煤沥清漆,环氧煤沥青防腐漆,醇酸调和油漆,醇酸调合油漆,醇酸快干油漆,醇酸磁漆,机械设备漆,玛钢漆,钢结构防火漆,钢结构防腐漆,过氯乙烯漆,环氧带锈防锈漆,,环氧地坪漆,丙烯酸漆,丙烯酸马路划线漆,快干马路划线漆,绝缘漆,自干绝缘漆,烟囱漆,烟囱防锈漆,烟囱防腐漆,油漆稀释剂,特种油漆稀释剂,本厂家价格低于其它厂1/2 ;数百种油漆质量第一,经久耐用,质优价廉,通过权威认证,质量全面达标,并提供产品说明书;一桶也可以最低价发货,一桶也可订做!
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The best operational parameters were that the reaction temperature was 105℃, the reaction time was 3 hours, the mixture ratio of n: n=1:2.79, using N,N-dimethyl benzylamine as catalyst, and 2,6-Di-tert-buthyl-p-cresol as inhibitor.
结果表明,合成TGICA的最优化条件为:n/n=l: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%。
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The volume ratio of furaldehyde to acetic anhydride is 1∶2; the mole ratio of furaldehyde with anhydrous potassium carbonate is 1.00∶0.54. The best phase transfer catalyst is PEG1000, the mass ratio of PEG1000 with furaldehyde is 4.3%, the reaction time is 11 min, the reaction power of microwave is 260 W. The yield ofα-furanacrylicacid is up to 72.3% under these reaction conditions.
研究结果表明:在微波辐射功率为260 W、微波反应时间为11 min、以聚乙二醇1 000(PEG1000)为相转移催化剂,糠醛与乙酐的体积比为1∶2,糠醛与无水碳酸钾的量比为1.00∶0.55时,α-呋喃丙烯酸的产率为72.3%。
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The complex was characterized by FT-IR, XRD, BET, SEM and EDS. The resin-supported catalyst exhibited high catalytic activity in the Heck reaction and could be reused up to 17 times in NMP or 16 times in DMF at 90 ℃ in the Heck reaction of iodobenzene with acrylic acid.
该负载型催化剂对Heck反应表现出高的催化活性和很好的重复使用性能,于90℃的碘苯与丙烯酸的Heck反应中,在NMP溶剂中能重复使用17次,在DMF溶剂中能重复使用16次。
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Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15~4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1~2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓~IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.
以丙烯酸丁酯,甲基丙烯酸-β-羟乙酯,丙烯酸及苯乙烯合成厂丙烯酸共聚树脂,并与含-NCO端基的聚氨酯丙烯酸酯接枝反应,经水性化后,得到两个系列(Acr-g-TPU-PETA和Acr-g-PPU-PETA)各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系,粘度与水相近,为牛顿流体,固含量30%左右。光固化前干燥涂膜的玻璃化转变温度在-15℃~4℃之间,有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料,接枝样dTG峰明显宽化,表明接枝样中链段之间的相互作刚有多重性,丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50%~30%者相对较好,且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1~2级,冲击强度为50kg·cm,柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团,碳—碳双键密度太低,光固化膜交联点太少,硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中,不出现色斑,光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜,光泽度及耐丁酮溶剂性能均有所提高,不会诱导铁基生锈,钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色,对光固化涂层的颜色干扰较小,为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出,且对所附着的铁基有诱导锈蚀作用。
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The results show that the catalyst could catalyze the Heck reaction of substituted aryl halide with crylic acid, the yields were above 80%.
结果显示,CL-HA-Pd/Ni具有较快的反应速率和较高催化活性,可成功催化取代芳基卤与丙烯酸的Heck反应,产率在80%以上。
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A fine quality of Zn-Cr coating can be synthesized as molar ratio of zinc powder:chromate=0.08-0.2,chromate:acrylic acid=0.8-4,the amount of polyvinyl alcohol in the coating bath reaches 20-40at%.
当铬酐与锌粉的质量比在0.08~0.2之间,铬酐与丙烯酸的质量比在0.8~4之间,10%聚乙烯醇含量在7~13wt%时,司·得到质量较好的锌铬涂层。
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According to the request of the customer production or joint development of the necessary specialty products, are mainly in line with the water stabilizer, organic phosphonic scale and corrosion inhibitor, scale inhibitor dispersing agent, water purification agent, bactericidal Algicide, cleaning agents, corrosion inhibitors, Reverse osmosis scale inhibitor, reverse osmosis microbicides, pre-film, slime stripping agent, HEDP, ATMP, HPMA, PBTCA and acrylic copolymer, boiler water treatment agents, scale and corrosion inhibitor oil field water injection, oil additives , deaerator, etc.
可根据顾客要求生产或共同开发需要的特种产品,现主要有符合水质稳定剂、有机膦阻垢缓蚀剂、阻垢分散剂、净水剂、杀菌灭藻剂、清洗剂、缓蚀剂、反渗透阻垢剂、反渗透杀菌剂、预膜剂、粘泥剥离剂、HEDP、ATMP、HPMA、PBTCA以及丙烯酸的共聚物、锅炉水处理剂、油田注水阻垢缓蚀剂、采油助剂、除氧剂等ZT系列多种产品,全部达到企业或国家有关标准。
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Polyurethane-acrylics hybrid latexes were prepared using isophorone diisocyanate, dimethylol propanoic acid and polypropylene oxides of different molecular weights as main materials for PU component, and butyl acrylate, methyl methacrylate and a crosslinker, trihydroxymethyl propanetriacrylate as main acrylic monomers. Hydroxyethyl acrylate was used as the coupling agent between PU and AC.
以异佛尔酮二异氰酸酯、二羟甲基丙酸和聚丙醚二醇等为聚氨酯原料,丙烯酸丁酯、甲基丙烯酸甲酯、三羟甲基丙烷三丙烯酸酯为丙烯酸酯类单体,丙烯酸羟乙酯为聚氨酯和聚丙烯酸酯间的偶联剂合成了丙烯酸酯改性水性聚氨酯乳液。
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In this paper, graft polymerization of acrylic acid onto maize starch using ammonium persulfate-sodium bisulfate as initiator is studied. The important reaction conditions of graft polymerization are investigated.
该文研究了以过硫酸铵亚硫酸氢钠为引发剂的玉米淀粉与丙烯酸的接枝共聚反应,并对重要的反应条件进行了研究。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。