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- The waste PET scraps was degradated with low molecular mixed polyalcohol. 用小分子混合醇降解废聚酯碎片。
- The synthesis method of dioctyl terephthalate(DOTP) from waste PET bottles with the catalysts of zinc acetate and magnesia is investigated. 介绍了以废聚酯瓶为原料,用醋酸锌与氧化镁复合催化剂合成对苯二甲酸二(2-乙基己)酯(DOTP)的方法。
- Copolyester hot-melt adhesives for interlining industry may be obtained by depolymerization of waste PET, esterification and polycondensation. 本文利用聚酯(PET)废料为基本原料,进行了合成共聚酯热熔胶的研究。
- The research results of catalysts for the synthesis of plasticizer DOTP from waste PET by alcoholysis method are summarized. 综述了由PET聚酯经醇解法制备增塑剂DOTP的催化剂的研究结果.
- The depolymerization of waste PET has been discussed.The influence factor on the properties of hot-melt copolyester adhesives was also investigated. 考察了聚酯废料的解聚反应 ,研究了改性组分对共聚酯性能的影响。
- This paper introduced a process of preparing plasticizer DOTP from waste PET by alcoholysis with RE complex catalyst.Optimun conditions for preparing were also established. 以稀土复合催化剂催化，用废涤纶和辛醇为原料，采用醇解法制取对苯二甲酸二辛酯（DOTP）增塑剂，并对其工艺条件进行优化。
- He can drone on for hours about his pet subjects. 他能就他的宠物侃侃而谈几小时。
- There are about 5.5mol% DEG segments will add to macromolecular chain of regenerative PET, while the chain has 5.7mol% ET segments in waste PET with butanediolysis and then condensation. 乙二醇醇解再生的聚酯中含有5.;5mol%25DEG链段，而经1;4丁二醇解聚再生的共聚酯中含有5
- Polyester-amid hot-melt adhesives with low cost can meet the demands of interline and garment industry.In addition, it is of great significance to recycle waste PET and protect the environment. 结果表明:所制得的聚酯酰胺热熔胶不仅成本低,性能也能满足服装、粘合衬工业的要求,而且对涤纶废料的开发利用及环境保护意义重大。
- Just think of the amount of time wasted. 想一想多少时间被浪费了。
- Selfishness in any form is my pet aversion. 我最讨厌自私自利，不管它以什么形式出现。
- She's wasted in her present job. 她做现在的工作屈才。
- He wasted his life in the vain pursuit of pleasure. 他为了追求享乐而白白虚度了一生。
- His body was wasted by long illness. 他久病体弱。
- Washing dishes is his pet aversion. 他最讨厌洗碗。
- I've wasted an entire day on this. 我为此事浪费了一整天的时间。
- His faithful pet dog bore him company. 他那忠实的爱犬给他做伴。
- It irks me to see money being wasted. 我看著浪费金钱就讨厌。
- There's no need to get in a pet about it! 没必要为这件小事发火！
- My daughter keeps a rabbit as pet. 我的女儿养了一只兔子当做宠物。
