促进剂
化学名称:2-巯基苯并噻唑
英文名称:2-mercaptobenzothiazole;2-bezothiazolethiol
分子式:c7h5ns2 分子量:167.25
主要特性:淡黄色单斜针状或片状结晶,相对密度1.42,熔点180.2~181.7℃,遇明火能燃烧,易溶于乙酸乙酯、丙酮,溶于二氯甲烷、乙醇,氯仿、乙醇等有机溶剂和碱及碱性碳酸盐溶液。微溶于苯,不溶于水和汽油。呈粉尘状时,爆炸下限为21g/m3。每公斤体重家鼠的致死量为5oomg,还未发现工业上使用该产品而致病的报道。粒状或粉状产品的贮存稳定性在两年以上。
性能指标:(gb11407一89)
使用特征:通用型促进剂,广泛用于各种橡胶,对天然胶和一般硫黄硫化合成胶具有快速促进作用,焦烧时间短,硫化平坦性宽。本品在橡胶中易分散,不污染,但与其硫化胶接触的物品易有苦味,不适用于制造与食品接触的橡胶制品。主要用于制造轮胎、内胎、胶带、胶鞋和工业制品等。
用法:本品需氧化锌和脂肪酸活化,秋兰姆类、二硫代氨基甲酸盐类、醛胺类、胍类等促进剂及一氧化铅、氧化镁、硫酸镁等都能增进其活性,作第一促进剂时一般用量为1~2份,作第二促进剂时用量为0.2~0.5份。
注意事项:本品低毒,对家兔ld505oomg/kg。刺激皮肤和粘膜,能引起皮炎及难以治疗的皮肤溃疡,可致敏。粉碎、过筛等装置应密闭,操作人员应穿戴劳动防护用品。
包装及贮运::采用木桶或聚丙烯编织袋或牛皮纸袋内衬塑料袋包装。每袋25kg。贮于干燥通风仓库中,存放期两年。按有毒化学品规定贮运。
promoter chemical name: 2 - mercapto benzothiazole
english name: 2 - mercaptobenzothiazole; 2 - bezothiazolethiol
formula: c7h5ns2 molecular weight: 167.25
main features: light yellow monoclinic acicular or flaky crystal, relative density 1.42, and 180.2 ~ 181.7 ℃, melting point meet flame burns, soluble in ethyl acetate, acetone, soluble in methylene chloride, ethanol, chloroform, ethanol and other organic solvent and alkali and alkali carbonate solution. slightly soluble in benzene, insoluble in water and gas. dust shaped, lower explosive limit of 21 g/m3. per kilogram of body weight of mice lethal dose for 5 oomg, has not been found using the product on the industrial and pathogenesis. granular or powder product storage stability in more than two years.
performance indicators: (gb11407 one 89)
characteristics: universal promoter, is widely used in all kinds of rubber, of natural rubber and general sulphur vulcanization synthetic rubber is fast, shorter scorch time and curing flatness wide. it is easily dispersed in rubber, no pollution, but their vulcanizates contact article is has a bitter taste, is not used in the manufacture of rubber products in contact with the food. mainly used in the manufacture of tires, inner tubes, tape, rubber shoes and industrial products, etc.
usage: this product should be activated zinc oxide and fatty acids, thiuram, dithiocarbamate salts, aldehyde amine, guanidine promoter and lead oxide, magnesium oxide, magnesium sulfate can improve its activity, make the first accelerator general dosage for 1 ~ 2, make the second accelerator dosage is 0.2 ~ 0.5.
note: this product low toxicity, of rabbit ld505oomg/kg. stimulate the skin and mucous membrane, can cause dermatitis and difficult to treat skin ulcer, sensitization. such as crushing, sieving device should be sealed, the operator shall wear labor protection articles.
packaging and shipping: : the barrel or polypropylene woven bags or kraft paper bags lined with plastic bag. each bag is 25 kg. store in a dry ventilated warehouse, storage period of two years. according to provisions of toxic chemicals stored.
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本产品的型号是DM,类型是附着力促进剂,品牌是浙江,产品规格是25kg/包,主要用途是广泛用于各种橡胶,有效物质含量是98,质量等级是一级