摘要
研究了聚氯乙烯(PVC)、聚氨酯(PU)及聚氨-聚氯乙烯酯复合(PU/PVC)人工革的抗物理化学破损、燃烧毒性及鉴别方法。结果发现:三类人工革在抗物理破损性能方面存在着差别,但难以作为分类鉴别的依据;三类人工革耐乙酸乙酯腐蚀性较好,而耐四氢呋喃(THF)和丙酮的性能则较差,PVC人工革能够在短时间内抵抗二甲基甲酰胺(DMF)的侵蚀,PU和PU/PVC人工革则不能,然而PU/PVC人工革却有优异的耐环己酮和二氯甲烷的性能,环己酮、二氯甲烷和DMF可以作为有效的鉴别溶剂;PVC及PU/PVC人工革燃烧后会释放出有毒气体HCl,用甲基橙试剂和AgNO3试剂检测人工革烟气收集液,可以判断其中是否含有PVC成分;ATR-FTIR法可以对PVC、PU和PU/PVC人工革进行准确的鉴别。
The physical, chemical property and identification method of PVC, PU and PU/PVC artificial leather have been investigated. Results indicated that in physical property test, there are differences among the three kinds of artificial leathers, but the differences is not obvious; All the artificial leather are resistant to acetic ether but THF and acetone, PVC artificial leather is resistant to DMF in a short time and PU artificial leather have excellent cyclohexanone and dichloromethane resistance, through the solvent tests, cyclohexanone, dichloromethane and DMF are found to be efficient solvents identifying the three artificial leather; After burning of PVC and PU/PVC artificial leather hydrogen chloride （HC1） would be gave off, which is easy detected by methyl orange and silver nitrate indictor; ATR-FTFIR providing high discrim- inating ability for PVC, PU and PU/PVC artificial leather.
出处
《皮革科学与工程》
CAS
北大核心
2014年第5期16-21,共6页
Leather Science and Engineering
基金
国家质检总局项目禁止假冒伪劣商品和侵权
人工皮革与天然皮革的鉴别(2012104018-10)
关键词
PVC人工革
PU人工革
物理力学性能
化学性能
鉴别
polyvinyl chloride （PVC） artificial leather
polyurethane （PU） artificial leather
physical property
chemicalproperty
identification
