交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)度(du)(du)(du)又稱(cheng)(cheng)交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)指(zhi)數(shu)(shu)，通(tong)常用(yong)(yong)交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)密(mi)(mi)度(du)(du)(du)或兩個相(xiang)(xiang)鄰交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)之間的數(shu)(shu)均(jun)分(fen)子量(liang)或每立方厘(li)米交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)的摩爾(er)數(shu)(shu)來表示(shi)。degree of cross linking;cross linking index又稱(cheng)(cheng)交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)指(zhi)數(shu)(shu)。表征高分(fen)子鏈的交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)程度(du)(du)(du)。通(tong)常用(yong)(yong)交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)密(mi)(mi)度(du)(du)(du)或兩個相(xiang)(xiang)鄰交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)之間的數(shu)(shu)均(jun)分(fen)子量(liang)或每立方厘(li)米交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)的摩爾(er)數(shu)(shu)來表示(shi)。用(yong)(yong)力學方法或平(ping)衡溶脹比(bi)法可測(ce)得交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)度(du)(du)(du)。交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)度(du)(du)(du)小的橡膠彈性(xing)較好，交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)度(du)(du)(du)大的橡膠彈性(xing)差，交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)度(du)(du)(du)再增加，機械(xie)強度(du)(du)(du)和硬度(du)(du)(du)都將增加，終失(shi)去(qu)彈性(xing)。交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)密(mi)(mi)度(du)(du)(du)，或兩相(xiang)(xiang)鄰交(jiao)(jiao)(jiao)聯(lian)(lian)(lian)(lian)(lian)(lian)點(dian)(dian)間鏈的平(ping)均(jun)分(fen)子量(liang)。