本文選題：交聯(lián) + 網(wǎng)絡(luò)�。� 參考：《石油化工》2017年11期

【摘要】：采用原位聚合一步法合成乙烯-丙烯無規(guī)共聚物(EPR),并加入1,9-癸二烯(DD)使EPR形成交聯(lián)結(jié)構(gòu)。通過小振幅震蕩剪切流變的方法研究了交聯(lián)程度不同的EPR的動態(tài)流變行為。實驗結(jié)果表明,隨DD含量的增加,EPR的交聯(lián)程度增大,儲能模量和損耗模量均隨之增加,黏度逐漸增大,并出現(xiàn)明顯的末端平臺。隨交聯(lián)程度的增大,EPR的應(yīng)變逐漸減低,彈性逐漸增加,自身的抗蠕變能力逐漸增強。交聯(lián)程度高的EPR的抗蠕變性能可以提高材料的耐疲勞性,延長材料的使用壽命,拓寬EPR的應(yīng)用領(lǐng)域。
[Abstract]:The ethylene propylene random copolymer (EPRN) was synthesized by one step in situ polymerization and the crosslinked structure of EPR was formed by adding 1 / 9-decenediene (DDD). The dynamic rheological behavior of EPR with different crosslinking degree was studied by means of small amplitude oscillatory shear rheology. The experimental results show that with the increasing of DD content, the crosslinking degree of EPR increases, the energy storage modulus and loss modulus increase, the viscosity increases gradually, and an obvious end platform appears. With the increase of crosslinking degree, the strain of EPR decreases, the elasticity increases, and the creep resistance of EPR increases. The creep resistance of EPR with high crosslinking degree can improve the fatigue resistance of the material, prolong the service life of the material and broaden the application field of EPR.
【作者單位】： 中國科學(xué)院化學(xué)研究所工程塑料重點實驗室;中國石油撫順石化分公司烯烴廠;中國石油撫順石化分公司乙烯化工廠水汽中心;中國科學(xué)院大學(xué);
【基金】：國家自然科學(xué)基金資助項目(21574143)
【分類號】：O631.2
，

本文編號：2011322