【作者】 卓小玲；

【导师】 田晓慧； 杨军；

【作者基本信息】 华东理工大学 ， 橡胶工业， 2012， 硕士

【摘要】 天然乳胶制品因含有多种致敏蛋白质而引起人体过敏性反应。目前,改善天然乳胶过敏性的实验方法,主要有物理改性、化学改性与生物改性。但截止目前,市面上仍无抗过敏性乳胶制品的生产与销售。因此,研究与探索抗过敏性乳胶制品的工业化生产变得迫在眉睫。针对天然乳胶过敏问题,本课题研究采用工艺简单的浸渍法形成多层复合膜的乳胶制品(中间层为改性天然乳胶层,两侧为改性水性聚氨酯层)；采用天然蚕丝的丝胶对水性聚氨酯与天然乳胶进行处理。利用共混方法,把天然乳胶和丝胶进行共混,考察不同的配比对乳液性能以及所成薄膜的影响。同时,用FTIR表征手段证明丝胶成功封端水性聚氨酯。并且对改性材料进行细胞毒性、皮肤刺激、析出可溶性蛋白质等过敏表征。研究结果显示：丝胶改性的多层膜的乳胶制品,在细胞毒性分析实验中,表明其基本无毒性。与此同时,在制备具有相同物理机械性能的制品中(耐磨性,耐油性,耐候性,耐压性,透光性与韧性等),丝胶改性的多层膜的乳胶制品将可以制备得比普通天然乳胶制品更薄,可以大大节约原材料。鉴于本实验研究中所用的主要原料为天然可再生资源以及操作中的循环回收利用,所以在将来的工业化生产中,将不会存在三废的处理问题。这些都是响应新时代对我们化工行业的要求---节能,减排,绿色,环保。更多还原

【Abstract】 The couse of leading to latex allergy is the special proteins in natural rubber latex from three-leaf rubber tree. According to paper reports, there are some ways of solutions of latex allergy, as physical, chemical, biologic channel and so on. But until now, it does not exist a mature industrialized process of production antiallergic nature rubber latex, due to their solutions be decreasing mechanical properties of nature rubber products. All of these make the research of commercial manufacture antiallergic rubber goods to become more important and valuable than ever.The target of antiallergic nature rubber latex product is the film of samdwich mode, with rubber latex in the middle and waterborne polyurethane, cross-linking sericin at its end functional group, in two sides. By means of characterization technique with FTIR, we proved that sericin had successfully grafted to the polyurethane prepolymer. Then through the heterocoagulation method, natural rubber latex was blended with graft copolymer to study the influence of different blending ratio on properties of latex and films. Furthermore, we made test of cytotoxicity, skin irritatin, extracted protein to characterize irritability of modified films.The exploring results showed that:the modified nature rubber latex product was improved the antiallergic property from cell toxicity text, which is superior in comparison with nature rubber good. Under the same physical and mechamical requirement, the modified rubber film can be produced thinner than nature rubber film, which will save a lot of raw material. Due to the main raw material in this experiment was renewable natural resource and cyclic utilization, there would be not exist the waste emission problem, which would be great stimulating the development of new chemical industry era, with saving resource, low emission, green and environment-friendly new era.更多还原