P（POSS-IA）纳米复合材料的制备及其鞣制性能

Preparation and tanning properties of P（POSS-IA）nanocomposite material

摘要:

以八乙烯基笼型倍半硅氧烷（POSS-Vi）和衣康酸（IA）为原料，通过自由基聚合制得聚（笼型倍半硅氧烷-衣康酸）〔P（POSS-IA）〕纳米复合材料。通过FT-IR、1H-NMR、XRD、TEM对其结构进行了表征，POSS-Vi均匀分散在聚合物基体中，直径在50nm左右。将P（POSS-IA）应用于坯革鞣制工序中，与聚（衣康酸）〔P（IA）〕、聚（丙烯酸）〔P（AA）〕、聚（笼型倍半硅氧烷-丙烯酸）〔P（POSS-AA）〕、聚（甲基丙烯酸）〔P（MAA）〕、聚（笼型倍半硅氧烷-甲基丙烯酸）〔P（POSS-MAA）〕鞣制坯革进行了性能对比。结果表明，P（POSS-IA）鞣制坯革具有较高的收缩温度，达到68.2 ℃；P（POSS-MAA）鞣制坯革增厚率最大，可达到53.3%；P（POSS-AA）鞣制坯革的抗张强度和撕裂强度最高，分别达到31.6 MPa、59.3 N/mm。坯革的SEM和EDS结果表明，P（POSS-IA）纳米复合材料在鞣制坯革中分散更均匀。

Abstract:

In this study, the poly (polyhedral oligomeric silsesquioxane-itaconic acid)〔P (POSS-IA)〕 nanocomposite material was prepared by free radical polymerization using octavinyl polyhedral oligomeric silsesquioxane (POSS-Vi) and itaconic acid (IA) as raw materials. The structure of POSS was characterized by FT-IR, 1H-NMR, XRD, and TEM. The POSS-Vi was uniformly dispersed in the polymer matrix with a diameter of about 50 nm. The P (POSS-IA) was applied to the tanning process of crust leather, and the properties of the tanning crust leather were compared with those of poly (itaconic acid)〔P (IA)〕, poly (acrylic acid)〔P (AA)〕, poly (polyhedral oligomeric silsesquioxane-acrylic acid)〔P (POSS-AA)〕, poly (methacrylic acid)〔P (MAA)〕, and poly (polyhedral oligomeric silsesquioxane-methacrylic acid)〔P (POSS-MAA)〕. The results showed that the shrinkage temperature of tanning crust leather with P (POSS-IA) was 68.2 ℃. The thickening rate of P (POSS-MAA) tanning crust leather was the highest, which can reach 53.3%. The tensile strength and tear strength of P(POSS-AA) tanning crust leather were the highest, reaching 31.6 MPa and 59.3 N/mm respectively. The results of SEM and EDS showed that P (POSS-IA) nanocomposite was more evenly dispersed.