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环磷腈化合物是一类耐热、阻燃性能优良的杂环化合物，每个磷上面连接两个氯原子，其含磷量相对较高，这也使得它相应的衍生物具有优异的阻燃性和热稳定性。而苯并噁嗪树脂是在传统的树脂基础上发展起来的一种新型类酚醛树脂。它不但继承了传统树脂的耐热、阻燃等优点，自身还具有传统酚醛树脂所不具有的性能，如：体积零收缩、固化不需催化剂、便于加工成型及灵活的分子结构设计等，具有良好应用前景。本文通过将磷腈环引入到噁嗪结构中，意欲提高其阻燃性和耐热性。 Hexachloro cyclotriphosphazene (HCC) are heterocyclic compounds with excellent heat-resistant and flame-retardant properties. In HCC each phosphorus is connected with two chlorine; its phosphorus content is relatively high, which provides its derivatives with excellent flame retardant properties and thermal stability. Benzoxazine resin is a new phenol formaldehyde resin (phenolic resin) evolved from the traditional resin. It not only has the heat-resistant, fire-retardant and other features, it also has its unique properties that traditional phenolic resins do not have, such as: no shrinkage, can be cured without a catalyst, ease to be processed to desired shapes and the flexibility in the design of molecular structures. It therefore has an excellent prospects in applications. In this paper, we introduced a portion of benzoxazine structure to the phosphazene ring in order to improve the flame retardant and heat resistance properties of the original HCC. |
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不用给金币；仅供参考： two chlorine--> two chlorines; its phosphorus content is relatively high-->It has relatively high phosphorus content it also has its unique properties that --> it also has the unique properties that no shrinkage--> no shrinkage during polymerization, In this paper, we introduced a portion of benzoxazine structure --> In this paper, benzoxazine structure was introduced to |
2楼2015-06-03 14:01:09
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注意逻辑，分析好逻辑，运用“连词”对文章进行重构。 句型结构要多元化，增加可读性。 As a heterocyclic compound, the hexachloro cyclotriphosphazene (HCC) possesses excellent heat-resistant and flame-retardant properties. Since each phosphorus of HCC is connected with two chlorines, its phosphorus content is relatively high, which results in a excellent flame retardant properties and thermal stability of its related derivatives. In addition,Benzoxazine resin is a new phenol formaldehyde resin (phenolic resin) evolved from the traditional resin, therefore not only it inherits the original advantages such as heat-resistant and fire-retardant properties, but also it possesses some characteristics that the traditional phenolic resins do not have including zero shrinkage, non-catalyst solidification, easiness in machine shaping, and flexible molecular structure design, which will be of a good application prospect. In this paper, we made attempt to introduce the phosphazene ring into the benzoxazine structure in hope of improving the flame retardant and heat resistance properties of the original HCC. |
3楼2015-06-06 10:12:38