橡胶加工专利

高耐用性充气轮胎 冰雪路面高滚动性能无镶钉轮胎 用含涂层硅酸盐的硫化胶料制成的传送带 食品工业用多层胶管 阻燃橡胶胶料及其制成的胶带     

EIS法研究3种配套涂层体系的腐蚀电化学行为

采用电化学阻抗谱(EIS)研究了由水性无机富锌底漆、环氧中间漆和氯化橡胶面漆3种涂料配套而成的3种不同涂层体系在3.5%NaCl溶液中的电化学腐蚀行为,考察了氯化橡胶面漆、水性无机富锌底漆／氯化橡胶面漆、水性无机富锌底漆／环氧中间漆／氯化橡胶面漆这3种涂层体系的阻抗谱在浸泡过程中的演化并据此比较了3种涂层体系的防护性能。结果表明,两涂层体系的防护性能比单涂层的还要差,三复合涂层体系的防护性能最好。根据涂层腐蚀电化学阻抗谱特征推测,中间漆在三复合涂层体系中起到了使底漆和面漆结合更加紧密的桥梁作用。     

乙丙橡胶密封件耐老化防护涂层的试验研究

针对东南沿海地区橡胶密封材料老化现象进行表面防护试验研究,开发用于橡胶表面的橡胶耐老化涂层。为进一步提高涂层本身的耐老化性能、改进涂层的施工性能、减少对环境的污染,试验研究了一种水性橡胶耐老化涂料,测试了涂层橡胶密封件的耐湿热性、耐盐雾性,试验结果表明:涂敷防护涂膜的乙丙橡胶表面在湿热环境下300 h、盐雾试验196 h未发生明显变化,耐老化效果显著提高。     

氯化橡胶在多频段隐身涂层中的应用

从氯化橡胶的分子结构和物理化学特性方面,分别论述了氯化橡胶在红外隐身涂层、雷达隐身涂层、可见光隐身涂层中的应用可行性,说明了氯化橡胶在多频段隐身涂层复合结构中的应用优势。进一步探讨了在隐身涂层中氯化橡胶树脂的防腐蚀性能,适应隐身需要的氯化橡胶分子改性方法,及氯化橡胶与其他粘合树脂相比较的性能优势,并展望了氯化橡胶在多频段隐身涂层中的应用趋势。分析结果表明：氯化橡胶在多频段隐身中的可应用性、所成膜的耐腐蚀性、易施工性能、与隐身颜填料的复合相容性和分子改性方面表现突出。     

玻璃纤维涂层织物

玻璃纤维织物可以涂上各种有机和无机涂层,制成涂层织物,用于各种用途。国内除了胶乳包装布和橡胶导风筒布外,好象还没有其它涂层织物。下面是国外近几年开发成功的几种玻璃纤维涂层织物,供参考。英国Ｓａｎｃｏｒ公司开发成功一种商标名称叫作Ｓａｎｄｅｌ的玻璃纤维...     

胎圈钢丝用氯化天然橡胶涂层及粘合机理的研究

将氯化天然橡胶(CNR)和增粘树脂溶于有机溶剂,配制胎圈钢丝用涂层液,测试涂层胎圈钢丝与橡胶的粘合性能。结果表明:CNR涂层能明显提高胎圈钢丝与橡胶的粘合性能,CNR与增粘树脂并用后粘合性能更加优异;使用涂层液涂抹胎圈钢丝,有机溶剂挥发后,溶质在胎圈钢丝表面形成一层蜂窝状的涂层;硫化粘合时,涂层将胎圈钢丝与橡胶紧密地粘合在一起,增强粘合界面的强度与粘力。     

环氧富锌/氯化橡胶涂层体系腐蚀过程的电化学阻抗谱

采用环氧富锌作为底漆、氯化橡胶作为面漆,研究了涂层体系腐蚀过程中电化学阻抗谱(EIS)的变化。结果表明,腐蚀初期环氧富锌/氯化橡胶涂层体系中底漆的厚度比例与涂层的防护性能无关,而在腐蚀中后期,随底漆厚度比例适当增大,涂层自修复能力增强,离子等腐蚀介质在涂层中的传输速度得到显著延缓,涂层吸水率和孔隙率明显降低,涂层防护性能出现短时间升高。当环氧富锌底漆为涂层总厚度的2/3左右时,涂层体系的防护性能最好,而仅有底漆或面漆的体系则不具备良好的防护性能。     

涂覆于铝合金基材的氯化橡胶涂层体系在浸泡作用下的失效机理

采用电化学阻抗谱研究了涂覆在铝合金基材上的氯化橡胶涂层体系在3.5%(质量分数)氯化钠溶液浸泡作用下的性能变化,用SEM观察了涂层表面的形貌变化,用FTIR对浸泡失效前后的涂层组成进行了分析,提出了在腐蚀环境中的氯化橡胶涂层的失效机理。     

HTPB改性环氧树脂复合材料在水轮机叶片上的应用

介绍端羟基聚丁二烯液体橡胶（HTPB）改性环氧树脂复合材料的制备及在水轮机叶片上的应用。水轮机叶片底涂层材料为HTPB／环氧树脂（质量比1：5）混合反应后加四乙烯五胺制成的HTPB改性环氧树脂复合材料;面涂层材料为HT—PB改性环氧树脂复合材料加入陶瓷微珠制成。水轮机叶片HTPB改性环氧树脂复合材料涂层在使用中无脱层现象,延长了水轮机的使用寿命。     

鳞片状Zn-15Al-5Mg-Ce合金油漆涂层的盐雾腐蚀研究

把自制的Zn-15Al-5Mg-Ce合金采用真空甩制成箔带,再经粉碎制成鳞片状微粉添加到环氧树脂油漆中,制成富Zn-15Al-5MgZe合金油漆涂层.对此合金涂层的物理性能进行了检测,比较并研究了该合金涂层与富Zn涂层的耐盐雾腐蚀性能.结果表明,Zn-15Al-5Mg-Ce合金油漆涂层的阴极保护效果比富Zn涂层提高33倍以上,涂层耐蚀性比后者提高了4.4倍.富Zn-15Al-5Mg-Ce合金油漆涂层的附着力为5.5 MPa,抗冲击强度为50kg·cm,弯曲性能为1 mm.     

A novel design for water-based modified epoxy coating with anti-corrosive application properties

In this study, a polysulfide rubber emulsion was synthesized through the pre-emulsification of polysulfide rubber by mixed-emulsifiers and polyvinyl alcohol as a weight stabilizer and the emulsification by adding deionized water dropwise at a speed of 1 ml/min, stirring at a speed of 1500 rpm and adjusting pH to 8 by ammonia. The epoxy coating was modified by the polysulfide rubber emulsion. The anticorrosive coating was prepared by using waterborne amine dispersion as a curing agent and polysulfide rubber as a modifier. It had a good chemical resistance and excellent overall mechanical performance. The coatings were characterized by Tafel polarization curves and Scanning electron microscope.     

橡胶O型圈表面涂覆用水性PTFE改性涂料的制备及应用

使用水性聚氨酯、水性丙烯酸树脂、氨基树脂为改性树脂,与水性聚四氟乙烯PTFE乳液复配,经混合分散、砂磨、过滤等工艺过程,制备出涂覆橡胶O型圈表面的水性PTFE改性自润滑涂料。结果表明,研制的水性PTFE改性自润滑涂料通过滚喷工艺喷涂橡胶O型圈表面,固化后形成的涂层对橡胶O型圈表面附着力好、摩擦系数低,具有良好的自润滑性,方便橡胶O型密封圈的装配操作。     

室温快干氯化橡胶重防腐导静电涂料

介绍了以氯化橡胶为主要成膜物,自制高固体分聚酯树脂为增韧改性树脂,用硅烷偶联剂处理的导电石墨为导电剂的新型重防腐导静电涂料的配方、制备工艺及主要性能指标;研究了增塑剂和有机溶剂种类、导电石墨用量及涂层厚度对涂料性能的影响;结果表明,聚酯树脂质量分数为25±5%、导电石墨质量分数为20±5%,稀释剂为用甲苯、丙酮、醋酸乙酯和醋酸丁酯配成的混合溶剂时,所得涂层综合性能最佳;热重分析表明,添加聚酯树脂后涂层耐热性提高;扫描电镜图显示,涂层为规则排列的层状致密层,说明涂料具有优良的阻隔性和防腐性。     

高速动车组外风挡橡胶的涂装工艺

介绍了高速动车组外风挡橡胶的涂装配套体系及相关性能指标。根据橡胶风挡涂装特点制定了涂装工艺流程和工艺控制要点。     

环保型难燃输送带的研制

介绍了环保型难燃输送带的研制,主要包括骨架材料的选择,覆盖胶和贴胶的配方设计以及实际生产工艺。经试验测试产品符合Q／FXS013-2005标准。该产品已获国家专利。     

Adhesion between polyurethane coating and EPDM rubber compound

The effect of the bulk modification of the EPDM rubber compound on the adhesion performance with polyurethane coating (PU) was studied. Ethylene propylene diene monomer (EPDM) was bulk modified using maleated EPDM, polynorbornene (PNR) or different curatives to improve adhesion to polyurethane coating. The coating–rubber composite adhesion performance was examined by peel, crack and abrasion tests followed by microscopic investigation of fracture surfaces and their chemical nature. The adhesion between the coating and the rubber substrate was improved using maleated EPDM or PNR, as well as different curing systems. The crack stress for the delamination of the polyurethane coating from the flexible bulk-modified rubber surface follows the trend: maleated EPDM > PNR > different curing systems > control.     

耐磨擦硅橡胶涂层制备工艺研究

硅橡胶用于电子产品的按键涂层不仅手感柔软,同时具有优异的防污、耐化学品腐蚀等性能,但其耐磨性能有待改善。文章对影响硅橡胶涂层耐摩擦性能的因素,如VMC（甲基乙烯基环硅氧烷）的用量、偶联剂的影响、交联剂含氢硅油的种类及用量封头剂用量等进行了研究,结果表明,制备耐磨擦硅橡胶涂层的适宜工艺条件为：VMC、封头剂的用量分别为7％和0．067％,加入偶联剂可以提高硅橡胶涂层的耐磨擦性能,交联剂应采用高含氢硅油。     

高速动车组风挡橡胶漆耐老化性能比较研究

选择了不同厂家的风挡橡胶涂料体系,制备涂层样板,从而进行人工加速紫外老化试验。通过测试各种涂层体系样板的外观、光泽度值、色差、明暗度、失光率等参数,研究了各种参数随老化时间的变化规律,评价了各种涂料体系的耐老化性能,进而为研究各种涂料体系的耐老化性能奠定了基础。     

Hard coatings on elastomers for reduced permeability and increased wear resistance

Abstract

In this study, three different elastomers, namely hydrogenated nitrile butadiene rubber, fluoroelastomer and silicone, have been subjected to two different hard metallised coatings by ion implantation process. The three different elastomers are commonly used in various seal applications, where reduced wear and gas permeability are essential in maintaining seal performance and functionality. Samples of these rubbers have been coated with chromium coating in one set of tests. In the second set of tests, samples of elastomers have been coated with tungsten carbide coating being deposited on all the three different elastomers. Wear, gas permeability and mechanical behaviour of the coated samples were compared with each other and with the control uncoated elastomers. All the coated samples showed good reduction in gas permeability. With the use of metallised coatings, there has been improved resistance to wear in all the coated samples. Adhesion strength and effect of coating on the elastomer have been investigated by mechanical testing. Mechanical tests revealed good adhesion of metal coatings on all the rubber samples, and there was no detrimental effect on the mechanical properties after coating.     

聚二甲基硅氧烷涂层材料的研究

采用一定粘度的聚二甲基硅氧烷为基体,加入适量填料和助剂,成功制备了室温硫化硅橡胶涂层。研究了气相法SiO2和交联剂对涂层材料的影响,并进行了TG和SEM测试。研究结果表明：填料的添加明显改善了涂层的力学性能和耐高温性能,拉伸强度迭1．42MPa,可耐温288℃;并且该涂层有较好的耐水和耐酸、盐性能,耐碱性能有待进一步改善。