对苯二甲酸

Short for poly, a condensation polymer that is commonly used in soft-drink bottles、fibers、engineering plastics etc.

聚对苯二甲酸乙二醇酯：PET是由乙二醇和对苯二甲酸通过缩聚反应而成的，反应过程中释放出副产物水。

The DSC results showed that calcium carbonate,sodium benzoate and terephthalic acid were the nucleating agents of polypropylene with high thermal stability of the nucleating effect,while the thermal stability of nucleating effect of pimelic acid,suberic acid,azelaic acid,and the two component nucleating agents suberic acid/calcium carbonate and azelaic acid/calcium carbonate were poor.

研究了碳酸钙、苯甲酸钠、对苯二甲酸和脂肪二元酸：庚二酸、辛二酸、壬二酸及其与碳酸钙组成的双组分成核剂对聚丙烯结晶成核效果的热稳定性。结果表明，高熔点物质碳酸钙、对苯二甲酸、苯甲酸钠的成核效果的热稳定性高，而脂肪二元酸的成核热稳定性低。庚二酸与碳酸钙组成的双组分成核剂的成核热稳定性高，但辛二酸、壬二酸与碳酸钙组成的双组分成核剂的成核热稳定性没有得到改善。

The project to be built with an annual output of 20,000 tons a polyethylene terephthalate plant. Adopting advanced and mature direct esterification process for the production of raw materials for purified terephthalic acid and 1,3-propanediol.

本项目拟建设一套年产2万吨聚对苯二甲酸丙二醇酯生产装置，采用国内先进成熟的直接酯化法生产工艺，主要原料为精对苯二甲酸和1，3-丙二醇。

Polybutylene terephthalate is a new type of polyester textile chemical fiber industry, it is a kind of aromatic polyester fiber after condensation reactions by 1,3 propylene glycol and benzane dicarbonic acid.

聚对苯二甲酸丙二醇酯是纺织工业中的一种新型聚酯化学纤维，是由1，3-丙二醇和对苯二甲酸经过缩聚反应形成的芳香族聚酯纤维。

It shows that the method is reliable and can be utilized to improve the efficiency of PET equipment. This method can also apply to the esterify reaction process of PBT and PTT.

该反应精馏法亦可应用于生产聚对苯二甲酸丁二醇酯、聚对苯二甲酸丙二醇酯的酯化反应部分。

Copolyesters of sebacic/terephthalic acid series was synthesized by the condensation polymerization of sebacic acid and terephthalic acid with ethanediol and neopentyl glycol.

论文采用癸二酸、对苯二甲酸与乙二醇、新戊二醇进行缩聚反应，合成了癸二酸/对苯二甲酸系共聚酯。

Varieties of chemical products have Dibutyl o-phenylenediamine, o-2-ethylhexyl, octyl Trimellitic, DOTP, chlorinated paraffin, epoxidized soybean oil, phthalate esters 8-10.

化工产品的品种有邻苯二丁酯，邻苯二辛酯，偏苯三辛酯，对苯二甲酸二辛酯，氯化石蜡，环氧大豆油，邻苯二甲酸8-10酯。

This embodiment will illustrate that the present invention of the (poly trimethylene terephthalate) PTT laminated film performs better than its PET counterpart in terms of vapor impermeability, flexibility and warpage; its vapor impermeability is about equal to a TPT back sheet, while flexibility and warpage are better than TPT back sheet.

本实施例说明本发明聚对苯二甲酸丙二醇酯薄膜复合成的叠层膜的抗水汽渗透性、挠性和翘曲度优于多层聚对苯二甲酸乙二醇酯薄膜复合形成的叠层膜，抗水汽渗透性与TPT背板基本相当，挠性和翘曲度优于TPT背板。

In comparison with the anaerobic batch fermentation of 1,3-propanediol from saponified glycerol, the bioprocess of two successive microbial fermentations for the production of 1,3-propanediol was feasible. The yield of 1,3-propanedio was higher than that of 1,3-propanediol directly from saponified glycero with 15 h in the two-stage fermentation in a 18h batch fermentation.

玉米淀粉。微生物发酵1，3一丙二醇(1，3-propanediol，简称1，3一PD)是一种重要的化工原料，与乙二醇、l，2一丙二醇和1，4一丁二醇有着相似的性质和用途，但又有许多其他二醇所不具备的优点，尤其是1，3-PD与对苯二甲酸合成的新型聚酯——聚对苯二甲酸丙二酯所展示的许多优良特性，使1，3一PD的研究开发日趋活跃。

In home, due to the shortage of polyester glycol, one of raw materials of preparing water-borne polyurethane, aromatic polyester glycols having designed molecular weight of 600,1000 and 2000 are synthesized in lab.

由于国内缺乏制备水性聚氨酯的原料聚酯二醇，实验自制了设计分子量为600、1000和2000的芳香族聚酯二醇；其中以邻苯二甲酸酐、间苯二甲酸、对苯二甲酸为二元酸，乙二醇、1，3—丙二醇和新戊二醇等为二元醇。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。