High-tin-content lauric acid reverse ester methyl tin mercaptide heat stabilizer and preparation method thereof

The invention provides a high-tin-content lauric acid reverse ester methyl tin mercaptide heat stabilizer and a preparation method thereof. The high-tin-content lauric acid reverse ester methyl tin mercaptide heat stabilizer is a mixture prepared from CH3Sn(SCH2CH2OOCC11H23)3, CH3SnS(SCH2CH2OOCC11H23), (CH3SnS)2S, (CH3)2SnS, (CH3)2Sn(SCH2CH2OOCC11H23)SSn(CH3)2(SCH2CH2OOCC11H23) and (CH3)2Sn(SCH2CH2OOCC11H23)2. The high-tin-content lauric acid reverse ester methyl tin mercaptide heat stabilizer is prepared from main raw materials of sulfhydryl reverse ester laurate, a methyl tin chloride aqueous solution and a sulphurizing salt aqueous solution which react. The stabilizer is free of toxicity and safe, good in lubricity and excellent in heat stability; and the preparation method is simple, reaction conditions are mild, a technology is easy to control, and the preparation method is suitable for industrial scale mass production. 一种高含锡月桂酸硫醇逆酯甲基锡热稳定剂及其制备方法，所述稳定剂是由CHSn(SCHCHOOCCH)、CHSnS(SCHCHOOCCH)、(CHSnS)S、(CH)SnS、