Raw material lactic acid is obtained from corn starch, it is also known as corn fiber, PLA fiber is the famous US grain company Cargill company developed the basis for a successful corn polylactic acid resin on the company in 1997 and US Dow Polymers joint stock company the establishment of Cargill Dow Polymers Company, Heze vinyl acetate, the full development of the raw material polylactic acid, polylactic acid with an annual output in 2002 reached 140,000 tons, the production of PLA fiber under the trade name Ingeo. Japan's Kanebo, uni Cheka and Kuraray Company's production of PLA fiber goods were Lactron, Terramac and Plastarch, DuPont and Monsanto and other companies have begun to develop PLA fibers. Currently, commercial production of PLA fiber is made from fermented corn starch lactic acid, dehydration polymerization reaction of polylactic acid ester solution spinning processing. PLA fiber reason for being concerned about a number of fiber companies and consumers, suppliers of vinyl acetate, and show great vitality, major PLA fiber has many outstanding advantages: In thermodynamics, with each element the most stable of the standard enthalpy of formation of elemental and the standard free energy is zero, as projected thermodynamic quantities of other substances. Due to the composition of the material is only one element, standard entropy is lower than the general elemental compound. Elemental 0.7 relationship between oxidation number regarded as elemental and compound edit common elemental and compound belongs to pure substance. Analyzing the material is a single substance or compound, first look at the substance is not a pure substance, is possible only within the pure substance belonging to a single substance or compound. Can not be considered material by the same elements necessarily elemental composition, it can not be considered material by the different types of elements must be compound. Such as white phosphorus and red phosphorus, although by the elements phosphorus, vinyl acetate prices, but they do not belong to a substance, a mixture of the mixture that does not belong to the pure substance. Another example is the air by a variety of elements, including oxygen, hydrogen, carbon, nitrogen, rare gases and other elements, it belongs to the mixture, do not belong to a pure substance, but not a compound. Cheung dry chemical (Figure), vinyl acetate quotes, Heze vinyl acetate provided by the Jinan Chemical Co., Ltd. Cheung dry. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (www.dilunyierchun.com) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to society, and are welcome new and old customers throughout the visit, sincere cooperation for a better future. Xiang dry chemical - your trusted friend, Company Address: Industrial Road chemical market, Contact: Mr.