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【英美经典书籍】《Photostabilization of Polymers_Priciples and Applications》
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【英美经典书籍】《Photostabilization of Polymers_Priciples and Applications》【已搜索，无重复】 我上传的这本书： 作者：Jan F. Rabek 1990年，606 页，PDF 格式，11 MB。 Language: English . 封面： 。  。 简介： During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40-60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. Increasing the stability of polymers and plastics towards heat, light, atmospheric oxygen and other environmental agents and weathering conditions has always been a very important problem. The photochemical instability of most of polymers limits them to outdoor application, where they are photo- degraded fast over periods ranging from months to a few years. To the despair of technologists and consumers alike, photodegrada- tion and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In many cases, improved methods of preparation and purification of both monomers and polymers yield products of better quality and higher resistance to heat and light. However, without stabilization of polymers by applica- tion of antioxidants (to decrease thermal oxidative degradation) and photostabilizers (to decrease photo-oxidative degradation) it would be impossible to employ polymers and plastics in everyday use. ============================== 敬请各位朋友，下载之后，给个回帖评价。我也好继续推出下一个最新科技书籍。 (不下载，也可以评价。) 谢谢！ |
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2015-01-11 21:05:11, 11.13 M
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