1.不飽和聚酯樹脂(UPR)
1. Unsaturated polyester resin (UPR)
不飽和聚酯樹脂(UPR)是我國順酐更主要的消費領城。不飽和聚酯樹脂是熱圓型樹脂的主要品種之一,由于其優良的機械性能、電性能和耐化學腐蝕性能，且加工工藝簡更,因此應用廣泛。目前中國可以生產400余個牌號的UPR,主要品種包括鄰萃型、間苯型、對萃型、雙酚A型等,按用途和功能分類包括通用樹脂、耐化學品樹脂、阻燃樹脂、澆注樹脂柔性樹脂、人造大理石,BMC與DMC樹脂、裝飾類樹脂和特種樹脂等。中國的UPR市場中,增強類(玻璃鋼用)樹脂比例只占40%,而用于非增強類樹脂的比例高達60%,在非增強類樹脂中工藝樹脂占34%，紐扣樹脂占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等加氫產品
2. BDO, THF and other hydrogenation products
順酐酯化加氫可以生產1,4-丁二醇(BDO)、四氫呋喃(THF)等產品,這些有機和精細化工產品，在國內較為緊俏,有著廣闊的應用前更。順酐在加氫類產品(包括BDO、THF和CBL等)中的應用，非常是在新型熱塑性工程塑料聚對萃二甲酸丁二醇面(PBT)和作為氨綸原料的聚四亞甲基醚二醇(PTMEC)中的應用，是過去10年間乃至今后較長一段時間內能夠大幅拉動全世界順酐產品迅速增長的主要囚來。目前,這些產品在國內的生產裝置規模較小,技術比較落后,每年都需從國外大量進口來滿足國內市場需求。尤其是1,4-丁二醇,除用于生產γ-丁內雷、四氫呋喃外,還可以進一一步制備附加值更高的精細化學品N-甲基吡咯炕酮和聚四亞甲基乙二醇醚等。其中順酐酯化加氫被認為是目前世界上生產1,4-丁二醇非常經濟和有前途的生產工藝路線。
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
順酐在涂料方面的應用主要是醇酸樹脂涂料和氨基樹脂涂料。醇酸樹脂涂料是18大類除料中消費量非常大的一類,產量和消費量約占徐料總量的三分之一。醇酸樹脂具有良好的附著力、光澤度和抗腐蝕等性能,廣泛用于建筑涂裝、機械和汽車涂裝、家俱以及防腐涂裝；氨基樹脂涂料也有良好的硬度、光澤和保光保色性能，廣泛用于輕工家電產品的裝飾涂裝。2003年全國醇酸樹脂徐料和氨基樹脂涂料的產量估計為75萬噸，消耗順酐約1.14萬噸。2005年我國對涂料的需求量達到約250.0萬噸,其中醇酸樹脂和氨基樹脂涂料的需求量達到約87.5萬噸，相應對順酐的需求量達到約1.5萬噸。
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.724ad.com
