CR/MMA-BA-AA接枝胶粘剂的研制

本文主要选择MMA、BA、AA作为单体，探讨CR与它们接技聚合的因素，如引发剂和各单体的加入顺序，加入量以及反应温度，找出最佳的接技聚合工艺条件：聚丁橡胶先经塑炼，然后用混合溶剂在70～80℃下将其搅拌溶解，再分批加入弓没剂BPO．在80—90℃下加入溶有BPO的第一单体MMA20分钟再加入溶有BPO的第二单体，再过20分钟，在84～88℃之间加入第三单体搅拌45分钟，保温1．5—2／J‘时，则得CR／MMA－BA－AA三元接技聚合胶粘剂，剥离强度比CR／MMA－BA大，其值为6．6KN．mloCR/MMA-BA-AA接枝胶粘剂的研制@李艳莉$佛山大学化…     

喷涂用氯丁胶粘剂的研制

简述了一种用于喷涂的氯丁密封胶配方、制备工艺及性能，该密封胶性能优良，成本低较，为提高氯丁胶粘剂的特殊性能和增加经济效益开辟了新的途径。     

Cure Characteristics and Mechanical Properties of Short Nylon-6 Fiber Neoprene Rubber Composite Containing Epoxy Resin as Bonding Agent

ABSTRACT

Cure characteristics and mechanical properties of the short nylon fiber reinforced neoprene rubber with and without epoxy bonding agent at various fiber loadings were studied. The fiber loading was varied from 0 to 30 phr and the resin content was in the range 0 to 5 phr. Minimum torque and cure time were increased in the presence of resin. Mechanical properties like tensile strength and abrasion resistance showed an increase with resin concentration. It was found that epoxy based bonding agents enhanced the properties of short nylon fiber reinforced neoprene rubber.     

喷涂用氯丁胶配方的研制

本文简述了一种用于喷涂的氯丁胶粘剂配方,制备工艺及性能,该胶粘剂性能优良,成本较低,为提高氯丁胶粘剂的特殊性能和增加经济效益开辟了新的途径。     

MACCR-1型改性氯丁胶粘剂的研制

介绍了以氯丁胶、甲基丙烯酸甲酯、丙烯酸和氯化聚乙烯为原料进行多元接枝共聚,制备MACCR－1型改性氯丁胶粘剂的方法;讨论了原料组成、溶剂种类及反应条件等因素对接枝共聚反应及产品性能的影响．结果表明,氯化聚乙烯是影响接枝共聚反应的关键因素,适量的氯化聚乙烯能明显加快聚合反应达度、提高转化率、接枝效率和接枝度;配合使用第二接枝单体丙烯酸所制备的胶粘剂具有较高的粘接强度和优良的综合性能．     

氯丁胶粘剂三大市场分析预测

我国氯丁橡胶胶粘剂在包括鞋业、建筑装横、汽车制造业等市场现状和预测至2005年市场。     

Neoprene-concrete friction relationships for seismic assessment of existing precast buildings

In Italy many precast industrial buildings built between 1950s and 1970s present beam-column connections with strength coming from neoprene-concrete friction. Numerical studies recently performed by the authors confirm that, in order to determine the seismic vulnerability of such structures, a reliable value of the neoprene-concrete friction coefficient has to be known. Technical bibliography provides many and different values for this coefficient; consequently, in order to define reliable values, a specific experimental campaign is carried out. Three types of experimental tests are performed: tests on neoprene hardness, tilting tests and pulling tests; in the last case, the specimen is also axially loaded.Tilting tests provide a value of the mean friction coefficient equal to about 0.5, with very low C.O.V.. Pulling tests underline a friction strength dependence on axial load and, in particular, a decrease in the friction coefficient as the axial load increases; a relationship for compressive stress-neoprene-concrete friction coefficient is proposed.     

氯丁密封胶的研制与应用

]本文简述了一种氯丁密封胶的配方、制备工艺、性能与应用领域，并对配方中的各组份的作用作了简单讨论。该密封胶性能优良，成本较低。广泛用于车辆、建筑、机械、化工等行业。     

影响丁基硫化胶质量因素的探讨

测定了不同产地的树脂交联剂的羟甲基含量;试验了不同盐酸含量的氯丁胶活性剂对丁基硫化胶质量的影响。试验结果表明:树脂交联剂的羟甲基含量和氯丁胶中的盐酸含量对丁基硫化胶质量有很大的影响。     

环保型氯丁胶粘剂

以改性丙酮8#抽提溶剂油为主溶剂配成一种价格适中，低毒快干的氯丁胶粘剂。实验确定了最佳溶剂体系及改性丙酮加入量。以该溶剂体系配制氯丁橡胶胶粘剂，具有粘接强度高、易涂刷和环保功效显著等特点。