1.不饱和聚酯树脂(UPR)
1. Unsaturated polyester resin (UPR)
不饱和聚酯树脂(UPR)是我国顺酐更主要的消费领城。不饱和聚酯树脂是热圆型树脂的主要品种之一,由于其优良的机械性能、电性能和耐化学腐蚀性能，且加工工艺简更,因此应用广泛。目前可以生产400余个牌号的UPR,主要品种包括邻萃型、间苯型、对萃型、双酚A型等,按用途和功能分类包括通用树脂、耐化学品树脂、阻燃树脂、浇注树脂柔性树脂、人造大理石,BMC与DMC树脂、装饰类树脂和特种树脂等。的UPR市场中,增强类(玻璃钢用)树脂比例只占40%,而用于非增强类树脂的比例高达60%,在非增强类树脂中工艺树脂占34%，纽扣树脂占24%,人造大理石占19%。
Unsaturated polyester resin (UPR) is the main consumption area of maleic anhydride in China. Unsaturated polyester resin is one of the main varieties of hot round resin. Because of its excellent mechanical properties, electrical properties, chemical corrosion resistance, and simple processing technology, it is widely used. At present, China can produce more than 400 brands of UPR, the main varieties include ortho extraction type, meta benzene type, para extraction type, bisphenol A type, etc. According to the use and function classification, it includes general resin, chemical resistant resin, flame retardant resin, cast resin flexible resin, artificial marble, BMC and DMC resin, decorative resin and special resin. In China's UPR market, the proportion of reinforced resin (used for glass fiber reinforced plastics) accounts for only 40%, while the proportion of non reinforced resin is up to 60%. Among non reinforced resin, process resin accounts for 34%, button resin accounts for 24%, and artificial marble accounts for 19%.
2.BDO、THF等加氢产品
2. BDO, THF and other hydrogenation products
顺酐酯化加氢可以生产1,4-丁二醇(BDO)、四氢呋喃(THF)等产品,这些有机和精细化工产品，在国内较为紧俏,有着广阔的应用前更。顺酐在加氢类产品(包括BDO、THF和CBL等)中的应用，特别是在新型热塑性工程塑料聚对萃二甲酸丁二醇面(PBT)和作为氨纶原料的聚四亚甲基醚二醇(PTMEC)中的应用，是过去10年间乃今后较长一段时间内能够大幅拉动全世界顺酐产品迅速增长的主要囚来。目前,这些产品在国内的生产装置规模较小,技术比较落后,每年都需从国外大量进口来满足国内市场需求。尤其是1,4-丁二醇,除用于生产γ-丁内雷、四氢呋喃外,还可以进一一步制备附加值更高的精细化学品N-甲基吡咯炕酮和聚四亚甲基乙二醇醚等。其中顺酐酯化加氢被认为是目前世界上生产1,4-丁二醇非常经济和有前途的生产工艺路线。
Maleic anhydride esterification and hydrogenation can produce 1,4-butanediol (BDO), tetrahydrofuran (THF) and other products. These organic and fine chemical products are relatively popular in China and have broad applications. The application of maleic anhydride in hydrogenation products (including BDO, THF, CBL, etc.), especially in the application of new thermoplastic engineering plastics PBT and PTMEC as the raw material of spandex, is the main culprit that can significantly drive the rapid growth of maleic anhydride products worldwide in the past 10 years and for a long time to come. At present, the domestic production facilities of these products are small and the technology is relatively backward, so they need to be imported from abroad in large quantities every year to meet the domestic market demand. Especially 1,4-butanediol, except for production γ- In addition to butyrolex and tetrahydrofuran, fine chemicals with higher added value, such as N-methylpyrrolidone and polytetramethylene glycol ether, can be further prepared step by step. Among them, maleic anhydride esterification hydrogenation is considered as a very economic and promising production process for the production of 1,4-butanediol in the world.
3.涂料方面
3. Coating
顺酐在涂料方面的应用主要是醇酸树脂涂料和氨基树脂涂料。醇酸树脂涂料是18大类除料中消费量非常大的一类,产量和消费量约占徐料总量的三分之一。醇酸树脂具有良好的附着力、光泽度和抗腐蚀等性能,广泛用于建筑涂装、机械和汽车涂装、家俱以及防腐涂装；氨基树脂涂料也有良好的硬度、光泽和保光保色性能，广泛用于轻工家电产品的装饰涂装。2003年全国醇酸树脂徐料和氨基树脂涂料的产量估计为75万吨，消耗顺酐约1.14万吨。2005年我国对涂料的需求量达到约250.0万吨,其中醇酸树脂和氨基树脂涂料的需求量达到约87.5万吨，相应对顺酐的需求量达到约1.5万吨。
Maleic anhydride is mainly used in alkyd resin coatings and amino resin coatings. Alkyd resin coating is one of the 18 major categories of materials, and its consumption is very large. Its output and consumption account for about one third of the total amount of Xuzhou materials. Alkyd resin has good adhesion, glossiness and corrosion resistance, and is widely used in architectural coating, mechanical and automotive coating, furniture and anti-corrosion coating; Amino resin coatings also have good hardness, luster, light and color retention properties, and are widely used for decorative coating of light industrial household appliances. In 2003, the national production of alkyd resin and amino resin coatings was estimated to be 750,000 tons, and the consumption of maleic anhydride was about 11,400 tons. In 2005, China's demand for coatings reached about 2.5 million tons, including 875000 tons for alkyd resin and amino resin coatings, and 15000 tons for maleic anhydride.
The above is a detailed introduction of maleic anhydride manufacturers, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://www.jnjhhg.cn
