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中山艾爾福德地坪工程有限公司告訴您水性環氧地坪固化劑的選擇 
據中國環氧樹脂行業協汕頭管道清通會專家先容，當用與環氧基反應的固化劑時，環氧值高的環氧地坪充分固化后的有效交聯密度大。對侵蝕性介質通過涂膜有強的抵抗作用；環氧值低的環氧樹脂則相反，但是過高的交聯密度輕易使涂膜發脆，所以在環氧樹脂組分中加入了活性稀釋劑。活性稀釋劑能降低漆料黏度，增加施工時固化劑組分與環氧樹脂組分的易混勻性，使固化劑對環氧樹脂的乳化功能更輕易施展，而且活性稀釋劑本身又能直接介入與固化劑的反應不產生VOC。 水性環氧地坪涂料正在得到越來越廣泛的應用，作為地坪涂料主導產品環氧樹脂基的地坪涂料的提高前輩品種，它的機能改進一直得到人們的正視，對成膜起重要作用的固化劑的選擇研究近又有新成果。
The choice of curing agent on the preparation of waterborne epoxy floor coating is very important. Waterborne epoxy coatings for multiphase system, epoxy resin as the dispersed phase, curing agent for the continuous phase (for water-soluble curing agent). China epoxy resin industry association experts thought that the curing process is controlled by diffusion, curing reaction in the first place in the interface, the viscosity of epoxy particle surface increases gradually, at the same time curing agent gradually spread to the epoxy resin, to further make the epoxy resin curing. Curing epoxy emulsion particle size is smaller, the closer the completely; Curing agent has better compatibility with epoxy resin, curing agent, the more easily spread to epoxy resin, curing. Commonly used water curing agent have fatty amine adduct, alicyclic amine adduct, polyamide, polyamide adduct, etc. Aliphatic amine adduct and alicyclic amine adduct share period is short, fast curing rate, particle surface viscosity of epoxy rise too fast. Go against to epoxy curing agent particle diffusion depth, curing incomplete, film function is not ideal. Bad component mixing soluble polyamide curing agent with epoxy resin and induction period, with polyamide resin adduct can overcome this shortcoming. As the system of collecting with water soluble polyamide adduct curing agent, the curing agent of wet concrete base surface wettability is good, can discharge water curing. Even in the wet base also has a good function of curing, solved the solvent epoxy floor coating materials as the topic of the construction problems face wet. http://www.www.reperis.com.cn/07ir/04e9-11.htm |
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