三元乙丙橡胶粘接用胶黏剂的研制  

Preparation of an Adhesive for Bonding EPDM

作　　者：王德志[1] 曲春艳[1] 张杨[1] 

机构地区：[1]黑龙江省石油化学研究院,黑龙江哈尔滨150040

出　　处：《化学与粘合》2006年第3期153-156,共4页Chemistry and Adhesion

摘　　要：研制了一种酚醛-三元乙丙橡胶(EPDM)型胶黏剂,探讨了主要组分对胶黏剂胶接性能的影响。通过对三元乙丙橡胶的溴化改性,改善了粘接性能,扯离强度达到了3.0 MPa以上,剥离强度达到了3.0 kN/m,且试件破坏形式多为材料破坏(橡胶内聚力破坏)。该胶工艺性能优良,初黏力达到了10 N/2.5 cm左右;该胶耐热性好,热重分析法(TG)测定该胶固化物明显热失重温度在400℃左右;该胶耐久性能好,紫外老化90 d(相当于大气老化10年),剪切强度下降率为10%左右。该胶主要应用于EPDM与金属之间及EPDM与复合材料之间的胶接,目前在大型压力容器内衬材料成型工程中已得到成功应用。A phenolic- EPDM solvent- based adhesive was introduced in this paper, and the effects of basic compositions on the bonding strength were discussed. The bonding performances of adhesive were improved by brominating modification. Its tear strength reached morw than 3.0 MPa, the peel strength was 3.0 kN/m and the breaking type of most bonding specimens was cohesive failure. This adhesive showed good processing performance, its initial adhesion （before cure） was about 10 N/2.5 can. DTA - TG curves exhibited that the thermo - gravimetric tuming point was 400℃, this indicated that the adhesive had good heat - resistance.After 90 days of ultraviolet radiation,the decreasing ration of the shear strength was about 10% ,and it proved that the adhesive had good durability. The adhesive was usually used in bonding for EPDM to metal as well as to composite msterials. So far the application of the adhesive was successful in the molding engineering process of inner liner material of large pressure vessel.

关 键 词：三元乙丙橡胶 金属 复合材料 胶黏剂 

分 类 号：TQ435.42[化学工程]