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Researches of the Excellent Methanical and Antiallergic Properties of Natural Rubber Latex and Commercially Production

Author: ZhuoXiaoLing
Tutor: TianXiaoHui；YangJun
School: East China University of Science and Technology
Course:
Keywords: Allergy Sericin Dipping Natural Rubber Latex Waterborne Polyurethane
CLC: TQ331.2
Type: Master's thesis
Year: 2012
Downloads: 33
Quote: 0
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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.

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CLC: > Industrial Technology > Chemical Industry > Rubber Industry > Latex > Natural rubber latex
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