Scenery Chemical Co., Ltd. Guangzhou factory 626 antioxidants, Yingkou City Scenery Chemical Co., Ltd. in Guangzhou Office, the production of various models: antioxidants, ultraviolet absorbers, light stabilizers products 1, using a chain breaking antioxidant formula stability of the polymer chain of the active species to antioxidant intervention reflects the reaction mechanism, that segment of the donor chain mechanism (CB-D) and the segment chain receptor mechanism (CB-A) CB-D mechanism typically peroxide only group Mission and inhibitors such as phenols, followed by the reaction between the aromatic amines. Students from out of AH inhibitors only group that can destroy the press reaction formula (1-43) a peroxide group PO2.2, the use of high pre-polymer antioxidants help the stability of preventive or antioxidants decomposable hydroperoxide, without intermediate formation of free radicals, antioxidants and therefore manufacturers 1076, which prevents the hydroperoxide is decomposed to free radicals caused by chain branch. 3, an antioxidant synergy between a very well-known example is the two-cinnamoyl-thiobis acid resin (DLTDP) or bis-stearoyl-thiobis acid resin (DSTDP) and the sterically hindered phenol class, used in some thermal stability of polymers. Another very important examples of synergies at the time to improve the melt stability of polyolefins, see sterically hindered phenolic and phosphite lipid complex role. Guangzhou scenery Chemical Co., Ltd. is located in southern China's largest chemical raw materials distribution center - Chemical Guangzhou City, Yingkou City Scenery Chemical Co., Ltd. in Guangzhou offices. Companies of all staff with full enthusiasm, rigorous style, sincere service and look forward to a pleasant cooperation with you! Antioxidants 330 [Application] belong to the high molecular weight polyol hindered phenolic antioxidants, has good heat resistance, no pollution, not colored, low-volatile, high-density polyethylene, polypropylene and rubber, fine antioxidants, but also for polyvinyl chloride, polyamide, ABS resin and polyester and other plastic products, the dosage is generally 0.1 to 0.5 parts. [Method] briefly in the presence of potassium t-butoxide catalyst by manufacturers 168,6- 2-tert-butyl phenol antioxidant and paraformaldehyde through addition reaction of 3,5-di-tert-butyl-4 hydroxybenzyl alcohol, and then in the presence of sulfuric acid catalyst and toluene trimesic made after condensation, washing, crystallization, and dried finished products. Antioxidants manufacturers _ _ scenery antioxidant chemical manufacturers 1010 by the Guangzhou Chemical Co. scenery. Antioxidants manufacturers _ _ scenery antioxidant chemical factory 1010 Guangzhou scenery Chemical Co. (www.fghg168.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, For the latest information, contact: Ye Yuan.