耐黄变非离子水性聚氨酯在皮革涂饰中应用
Yellowing-resistant Nonionic Waterborne Polyurethane for Leather Finishing Applications
潘鑫蕊 1张凯 2张彤 1鲁振威 1丁燕波 1翁永根 1秦静 3李国荣 1曲家乐 4于涵 1段宝荣1
作者信息
- 1. 烟台大学化学化工学院皮革与蛋白质实验室,山东烟台 264005
- 2. 德瑞(常州)特种材料有限公司,江苏常州 256401
- 3. 晋江全杰生物科技有限公司,福建泉州 362200
- 4. 滨州医学院药学院,山东烟台 264005
- 折叠
摘要
聚氨酯涂饰材料在长时间受到紫外线或者热量影响下容易发生黄变,影响材料的美观和使用寿命.将紫外吸收剂UV-320和2-羟乙基二硫化物引入聚氨酯扩链中,制备耐黄变非离子水性聚氨酯,并应用于皮革喷涂,通过色差、稳定性、扫描电镜、X射线光谱等测试发现,在中涂工序加入50份数耐黄变非离子水性聚氨酯处理过的皮革的总色差△E为2.9,变色等级为1级,仅有很轻微色变.结合皮革拉伸强度和耐磨耗的基本性能指标,表明制备的耐黄变聚氨酯在保持皮革的力学性能、耐磨耗性能的同时,其耐黄变性能也大幅提高.
Abstract
Polyurethane finishing materials are susceptible to yellowing under the influence of ultraviolet light or heat for a long period of time,which affects the aesthetics and service life of the materials.The UV absorbent UV-320 and 2-hydroxyethyl disulfide were introduced into the polyurethane chain extension to prepare the yellow-resistant non-ionic waterborne polyurethane,and then applied to leather spraying.Through color difference,stability,scanning electron microscopy,X-ray spectroscopy and other tests,it was found that the total color difference △E of the leather treated with 50 parts of yellowing-resistant nonionic aqueous polyurethane in the step of mid-coating was 2.9,and the discoloration grade was 1 and only a very slight discoloration.Combined with the basic performance indexes of tensile strength and abrasion resistance of the leather,it shows that the prepared yellowing-resistant polyurethane can greatly improve the yellowing-resistant performance while maintaining the mechanical properties,abrasion-resistant performance of the leather.
关键词
非离子水性聚氨酯/皮革/涂饰剂/耐黄变Key words
nonionic waterborne polyurethane/leather/finishing agent/yellowing resistance引用本文复制引用
基金项目
山东省中小企业提升项目(2022TSGC1354)
山东省中小企业提升项目(2022TSGC2552)
山东省自然基金面上项目(ZR2023MB147)
出版年
2024
NETL
NSTL
万方数据