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首页> 外文期刊>Journal of Applied Polymer Science >Soybean oil based polyisocyanurate cast resins
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Soybean oil based polyisocyanurate cast resins

机译：豆油基聚异氰脲酸酯浇铸树脂

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摘要

Two series of polyisocyanurates were prepared from polymeric 4,4'-diphenylmethane diisocyanate (MDI) and soy-based or polypropylene oxide polyols by varying isocyanate indexes from 105 to 350. Increasing isocyanate index gave polyisocyanurates with increased thermal stability, flame resistance, tensile strength, modulus, and glass transition. Impact was lower. Soy-based polyisocyanurates displayed better thermal stability, higher rigidity (modulus), and higher strength than those based on the propylene oxide polyols of the same molecular weight and functionality. (C) 2003 Wiley Periodicals, Inc. [References: 11]
机译：由聚合的4,4'-二苯基甲烷二异氰酸酯（MDI）和大豆基或聚环氧丙烷多元醇通过将异氰酸酯指数从105改变为350，制备了两个系列的多异氰脲酸酯。增加异氰酸酯指数可以使聚异氰脲酸酯具有更高的热稳定性，阻燃性，拉伸强度，模量和玻璃化转变。影响较低。与基于相同分子量和官能度的环氧丙烷多元醇相比，大豆基聚异氰脲酸酯显示出更好的热稳定性，更高的刚性（模量）和更高的强度。 （C）2003 Wiley Periodicals，Inc. [参考：11]

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