Latex stage epoxidation of natural rubber with in-situ formed pefformic acid was studied under different feed composition and reaction temperatures. 采用过氧化氢在甲酸存在条件下对天然橡胶胶乳进行环氧化反应。
All the leakage fixers AC adopt stainless steel, sealers adopt silicon rubber, they can withstand oil, acid alkalis, high temperature. 所有外露紧固件均用不锈钢,密封件采用硅橡胶,耐油、耐酸、耐碱、耐高温。
Use: rubber reinforcing filler, acid can be used for rubber products and general products. 用途:橡胶的补强填充剂,可用于耐酸橡胶制品和一般制品。
Rubber fingers treated with lactic acid. 用乳酸处理过的橡皮指套。
"Rubber, vulcanized Determination of carbon black content Nitric acid digestion method" GB/T7766-1987硫化橡胶中炭黑含量的测定硝酸消化法
Acidity of Natural rubber latex/ formic acid/ hydrogen peroxide mixture was studied, the acidty relation with mixture composition and remained time were obtained. 研究了天然胶乳/甲酸/过氧化氢混合物的酸度效应,探讨了混合物的酸度与其组成及停留时间的关系。
Application of Anticorrosive Rubber Lining in Phosphoric Acid Equipment 防腐蚀橡胶衬里在磷酸装置中的应用
Determination of Low Unsaturated Rubber in Its Blend with High Unsaturated Rubber by Acid Digestion 酸消化法测定与高不饱和橡胶并用的低不饱和橡胶
The effects of the vinyl content of ethylene silicone rubber, polyvinyl silicone oil, hydrogenous silicone oil, chloroplatinic acid on the mechanical properties were reviewed. 探讨了甲基乙烯基硅橡胶中乙烯基含量、多乙烯基硅油、含氢硅油和氯铂酸对加成硫化硅橡胶物理机械性能的影响。
Ethylene-propylene-diene rubber filled with nano-calcium carbonate in-situ modified by methacrylic acid ⅰ. Effect of curing agent and methacrylic acid amount 用甲基丙烯酸原位改性纳米碳酸钙填充三元乙丙橡胶Ⅰ.交联剂和甲基丙烯酸用量的影响
Acid effect in radiation grafting of silicone rubber ⅰ. simultaneous irradiation graft of acrylic acid 硅橡胶膜辐射接枝中酸效应的研究&Ⅰ.与丙烯酸共辐射接枝反应
A study on lowering friction factor of rubber materials by acid treatment 酸处理法降低橡胶材料摩擦系数的研究
Hydroxyl-carboxyl-terminated polybutadiene ( HCTPB) liquid rubber was synthesized by a conversion technique of terminal groups with hydroxyl-terminated polybutadiene ( HTPB) liquid rubber as raw material and organic acid anhydride as carboxylation agent. 以端羟基聚丁二烯液体橡胶(HTPB)为原料,以有机酸酐为羧化剂,采用端基转化法合成出了端羟羧聚丁二烯液体橡胶(HCTPB)。
Application of Chlorosulfonated Polyethylene Rubber in The Storage of S-NPK By-product Hydrochloric Acid 氯磺化聚乙烯橡胶在S-NPK副产盐酸储存中的应用
This paper mainly studies to synthesize adhesive by graft modification of SBS/ SIS block copolymer with rubber or acrylic acid and acrylic ester. 以SBS和SIS为基材,采用不同橡胶胶种、丙烯酸及其酯类单体进行接枝共聚合成胶粘剂。
DMC was prepared by cracking reaction of the waste silicone products, which were the waste silicone oil and waste silicone rubber tailings, in the presence of dodecyl benzene sulfonic acid and catalyst. 以废有机硅制品(如废硅油、废硅橡胶制品下脚料等)为原料,在十二烷基苯磺酸和催化剂存在下裂解,得到硅氧烷混合环体。
Discuss of rubber board lined in vacuum plants of wet phosphorus acid 湿法磷酸真空设备衬胶工艺探讨
Zinc dimethacrylate ( ZDMA) was in-situ prepared in a mixing process of natural rubber with ZnO and methacrylic acid ( MAA) and used to obtain NR/ ZnO/ MAA vulcanizate in the presence of dicumyl peroxide ( DCP) as a curing agent. 在天然橡胶(NR)混炼过程中加入氧化锌与甲基丙烯酸(MAA),在橡胶基体中原位生成甲基丙烯酸锌(ZDMA),并在硫化剂过氧化二异丙苯作用下制备NR/ZnO/MAA硫化胶。
Synthesis of tetrabasic graft copolymer of chloroprene rubber/ styrene/ methyl methacrylate/ acrylic acid 氯丁橡胶/苯乙烯/甲基丙烯酸甲酯/丙烯酸接枝共聚物的合成
The micromorphology, mechanical properties, resistance to thermal aging and thermal stability of natural rubber ( NR)/ nano-calcium carbonate modified with stearic acid ( CCR) and NR/ CCR modified by solid phase ( M-CCR) composites were investigated. 研究了天然橡胶(NR)/硬脂酸包覆型纳米碳酸钙(CCR)复合材料和NR/固相法改性纳米碳酸钙(M-CCR)复合材料的微观形态、力学性能、耐老化性能和热稳定性能等。
According to the analysis of rubber seed oil, C16 and C18 were the main fatty acid components, acid value was 38.836mg/ g, saponification value 198.784mg/ g, iodine value 122.092g/g and it belonged to semi-dry oil. 通过对橡胶籽油的部分理化参数分析表明:橡胶籽油以C16和C18为主,酸值为38.836,皂化值为198.784,碘值为122.092,属半干性油。
The vulcanization behavior of acrylate rubber ( ACM) cured with trithiocyanuric acid ( TCY) was investigated. 研究了硫化剂TCY对丙烯酸酯橡胶(ACM)的硫化特性。
A New Type of Rubber Corrugated Pipe Mechanical Seal for Dilute Sulphuric Acid Pump 稀硫酸泵用新型橡胶波纹管机械密封的研制
The results show that the decrease of zeolite particle size is not favourable to the selectivity of ethanol-water mixture and the separation properties of ethanol-water mixture through different type of silicone rubber membrane filled with acid leached silicalite-ⅰ are related to the property of silicone rubber itself. 结果表明,沸石粒径的减小,不利于乙醇-水分离系数的提高;不同品种硅橡胶的沸石填充膜对乙醇-水的渗透蒸发分离性能与硅橡胶本身的性质有关。
Preparation of epoxidized styrene butadiene rubber by formic acid-hydrogen peroxide 用甲酸-过氧化氢法制备环氧化丁苯橡胶
This paper introduces how to choose the most suitable anticorrosive rubber lining on the basis of the analysis of phosphoric acid process and the consideration of various factors such as chemical corrosion, medium temperature, pressure and the situation of wear, and the probability of vulcanization etc. 通过对磷酸生产工艺的分析,综合考虑生产装置各部位化学介质的腐蚀性、介质温度、压力及磨损状况,硫化的可能性等因素,选择最为合适的防腐蚀橡胶衬里。
The results show that brittle failures of plain chloroprene rubber bearings of highway bridge can happen more easily with acid corrosion. Moreover, the ultimate shearing strength, horizontal equivalent stiffness and elastic modulus of shear are more significantly decreased. 结果表明腐蚀时间越长,公路桥梁板式氯丁橡胶支座更容易发生脆性破坏,其极限抗剪强度、水平等效刚度和抗剪弹性模量等指标显著降低。
Trials were will rubber powder wash, sodium hydroxide solution and hydrochloric acid solution of treatment to cement mortar strength as the evaluation index, the results showed that strength have increased significantly with NaOH treatment, and best effect. 试验分别将橡胶粉用水洗,氢氧化钠溶液及盐酸溶液进行处理,以水泥砂浆强度作为评定指标,结果显示强度有明显提高,而且用氢氧化钠处理效果最好。
There are a lot of studies on the durability of rubber bearings at domestic and international, the studies of durability of plain chloroprene rubber bearings in the acid corrosion and salt frozen conditions have to be perfected from domestic and foreign research status. 国内外对橡胶支座耐久性的研究已有很多,而从国内外的研究现状来看,对于氯丁橡胶支座的酸腐蚀及盐冻条件下的耐久性研究还有待完善。