Sultan Misbah, Zia Khalid Mahmood, Bhatti Haq Nawaz, Jamil Tahir, Hussain Rizwan, Zuber Mohammad
Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad 38040, Pakistan.
Department of Applied Chemistry, Institute of Chemistry, Government College University, Faisalabad 38030, Pakistan.
Carbohydr Polym. 2012 Jan 4;87(1):397-404. doi: 10.1016/j.carbpol.2011.07.070. Epub 2011 Aug 5.
Polyurethane (PU) prepolymers were prepared by using two different diisocyanates i.e., toluene-2,4-diisocyanate (TDI) and or isophorone diisocyanate (IPDI), and poly (2-methyl-1,3-propylene glutarate), hydroxyl terminated group. PU prepolymer was reacted with 2-hydroxyethylacrylate (HEA) to form vinyl terminated PU prepolymer. Vinyl terminated PU prepolymers were further copolymerized with butyl acrylates (BuA) by emulsion process. The structure of proposed PUACs samples was confirmed by FT-IR, and their physicochemical properties were studied determining solid contents (%), emulsion stability and its appearance, tackiness and film appearance. Their acids and base chemical resistance was also studied and discussed. The synthesized PUACs samples were applied using dip-padding techniques on mill un-desized poly-cotton plain weave fabrics. The results emphasis that PUACs based on toluene-2,4-diisocyanate (TDI) have shown excellent performance against physical and chemical resistance as compared to isophorone diisocyanate (IPDI) based PUACs, however vice versa results were found in some studies.
聚氨酯（PU）预聚物是通过使用两种不同的二异氰酸酯，即甲苯-2,4-二异氰酸酯（TDI）和异佛尔酮二异氰酸酯（IPDI），以及端羟基聚（2-甲基-1,3-丙二醇戊二酸酯）制备而成。PU预聚物与丙烯酸-2-羟乙酯（HEA）反应形成端乙烯基PU预聚物。端乙烯基PU预聚物通过乳液聚合工艺与丙烯酸丁酯（BuA）进一步共聚。通过傅里叶变换红外光谱（FT-IR）确认了所制备的聚氨酯丙烯酸酯（PUACs）样品的结构，并通过测定固含量（%）、乳液稳定性及其外观、粘性和膜外观来研究其物理化学性质。还对它们的耐酸碱化学性能进行了研究和讨论。使用浸轧技术将合成的PUACs样品应用于未退浆的机织涤棉平纹织物上。结果表明，与基于异佛尔酮二异氰酸酯（IPDI）的PUACs相比，基于甲苯-2,4-二异氰酸酯（TDI）的PUACs在物理和化学抗性方面表现出优异的性能，然而在一些研究中发现了相反的结果。
