涂料染色粘合剂GH的研制和性能

本文就涂料染色粘合剂GH的制备、乳液稳定性、薄膜材料性能以及染色应用性能等进行了系统的讨论,并与国内外的同类样品作了比较。实验表明,粘合剂GH具有较好的综合性能,尤其是刷洗牢度、抗泳移性、低温染色性和较小的粘搭性。该粘合剂适用于中色染色(涂料用量为10g/l)。     

聚氨酯/聚乙烯醇共混物若干结构与性能的关系

作者运用 SEM,动态粘弹,DSC,WAXS,应力-应变,密度测试和吸湿、透湿实验等方法,对PU/PVA 共混物的形态结构,动态力学性能,热性能,结晶性,拉伸力学性能和吸湿、透湿性等进行了系统的研究,并探讨了湿法凝固薄膜的微孔透湿性。     

PHASE SEPARATION AND MICROVOID FORMATION AT PHASE INTERFACES OF HYDROPHOBIC-HYDROPHILIC POLYMER BLENDS DURING WET PROCESSING

In this paper,morphological structure,thermodynamic compatibility and relationship be-tween porosities and blend ratios of the wet coagulated PU/PVA sheets were studied by meansof observation of scanning electronic micrographies,tests of dynamic mechanical properties,moisture regain and vapor permeability.Furthermore,the formation of microvoids at interfacesof separated phases was discussed and a microvoid formation mechanism at phase interfaces ofhydrophobic-hydrophilic blends was suggested and compared with that ofhydrophobic-hydrophobic blends.