容(rong)(rong)易(yi)進(jin)項(xiang)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)層老化(hua)(hua)、脫落現(xian)(xian)象(xiang)，使用(yong)(yong)(yong)(yong)(yong)過(guo)(guo)(guo)程中(zhong)。保定(ding)(ding)八達(da)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)帶有(you)限公司經過(guo)(guo)(guo)研究，引(yin)(yin)起(qi)(qi)(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)老化(hua)(hua)的(de)(de)(de)(de)因(yin)素有(you)一(yi)(yi)下(xia)幾(ji)方(fang)面(mian)：1氧(yang)(yang)：氧(yang)(yang)在(zai)(zai)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)中(zhong)同橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分子(zi)(zi)發生(sheng)游離(li)基鏈(lian)(lian)(lian)鎖反(fan)應(ying)(ying)，分子(zi)(zi)鏈(lian)(lian)(lian)發生(sheng)斷裂或過(guo)(guo)(guo)度(du)交聯，引(yin)(yin)起(qi)(qi)(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)性(xing)(xing)能(neng)(neng)(neng)的(de)(de)(de)(de)改變。氧(yang)(yang)化(hua)(hua)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)是(shi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)老化(hua)(hua)的(de)(de)(de)(de)重要原(yuan)因(yin)之一(yi)(yi)。2臭(chou)氧(yang)(yang)、臭(chou)氧(yang)(yang)的(de)(de)(de)(de)化(hua)(hua)學(xue)活性(xing)(xing)比(bi)氧(yang)(yang)高(gao)得(de)多，破(po)(po)壞(huai)(huai)性(xing)(xing)更大(da)，同樣(yang)是(shi)使分子(zi)(zi)鏈(lian)(lian)(lian)發生(sheng)斷裂，但臭(chou)氧(yang)(yang)對(dui)(dui)(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)情(qing)況隨橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)變形(xing)與(yu)否而不(bu)同。當作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)于變形(xing)的(de)(de)(de)(de)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)（主要是(shi)不(bu)飽(bao)和(he)(he)(he)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)）時(shi)，出現(xian)(xian)與(yu)應(ying)(ying)力(li)(li)(li)(li)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)方(fang)向垂直的(de)(de)(de)(de)裂紋，即(ji)所謂(wei)“臭(chou)氧(yang)(yang)龜裂”作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)于變形(xing)的(de)(de)(de)(de)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)時(shi)，僅外表生(sheng)成(cheng)(cheng)氧(yang)(yang)化(hua)(hua)膜而不(bu)龜裂。3熱：提(ti)(ti)高(gao)溫(wen)度(du)可引(yin)(yin)起(qi)(qi)(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)(de)熱裂解(jie)或熱交聯。但熱的(de)(de)(de)(de)基本作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)還是(shi)活化(hua)(hua)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)。提(ti)(ti)高(gao)氧(yang)(yang)擴散速(su)(su)度(du)和(he)(he)(he)活化(hua)(hua)氧(yang)(yang)化(hua)(hua)反(fan)應(ying)(ying)，從而加(jia)速(su)(su)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)氧(yang)(yang)化(hua)(hua)反(fan)應(ying)(ying)速(su)(su)度(du)，這是(shi)普(pu)遍存在(zai)(zai)一(yi)(yi)種老化(hua)(hua)現(xian)(xian)象(xiang)—熱氧(yang)(yang)老化(hua)(hua)。4光(guang)：光(guang)波(bo)越短、能(neng)(neng)(neng)量越大(da)。對(dui)(dui)(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)起(qi)(qi)(qi)破(po)(po)壞(huai)(huai)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)能(neng)(neng)(neng)量較高(gao)的(de)(de)(de)(de)紫外線。紫外線除了能(neng)(neng)(neng)直接引(yin)(yin)起(qi)(qi)(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分子(zi)(zi)鏈(lian)(lian)(lian)的(de)(de)(de)(de)斷裂和(he)(he)(he)交聯外，橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)因(yin)吸收光(guang)能(neng)(neng)(neng)而發生(sheng)游離(li)基，引(yin)(yin)發并加(jia)速(su)(su)氧(yang)(yang)化(hua)(hua)鏈(lian)(lian)(lian)反(fan)應(ying)(ying)過(guo)(guo)(guo)程。紫外線光(guang)起(qi)(qi)(qi)著(zhu)加(jia)熱的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)。光(guang)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)其另一(yi)(yi)特點（與(yu)熱作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)不(bu)同）主要在(zai)(zai)橡(xiang)(xiang)(xiang)(xiang)(xiang)表面(mian)進(jin)生(sheng)。含膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)率(lv)高(gao)的(de)(de)(de)(de)試樣(yang)，兩面(mian)會(hui)出現(xian)(xian)網(wang)狀裂紋，即(ji)所謂(wei)“光(guang)外層裂”5機(ji)(ji)械(xie)應(ying)(ying)力(li)(li)(li)(li)：橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)輸(shu)送(song)帶在(zai)(zai)機(ji)(ji)械(xie)應(ying)(ying)力(li)(li)(li)(li)反(fan)復作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)以及和(he)(he)(he)托輥的(de)(de)(de)(de)不(bu)時(shi)摩擦過(guo)(guo)(guo)程，會(hui)使橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分子(zi)(zi)鏈(lian)(lian)(lian)斷裂生(sheng)成(cheng)(cheng)游離(li)基，引(yin)(yin)發氧(yang)(yang)化(hua)(hua)鏈(lian)(lian)(lian)反(fan)應(ying)(ying)，形(xing)成(cheng)(cheng)力(li)(li)(li)(li)化(hua)(hua)學(xue)過(guo)(guo)(guo)程。機(ji)(ji)械(xie)斷裂分子(zi)(zi)鏈(lian)(lian)(lian)和(he)(he)(he)機(ji)(ji)械(xie)活化(hua)(hua)氧(yang)(yang)化(hua)(hua)過(guo)(guo)(guo)程。哪個能(neng)(neng)(neng)占優勢，視(shi)其所處的(de)(de)(de)(de)條件而定(ding)(ding)。此外，應(ying)(ying)力(li)(li)(li)(li)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)容(rong)(rong)易(yi)引(yin)(yin)起(qi)(qi)(qi)臭(chou)氧(yang)(yang)龜裂。6水(shui)(shui)分：水(shui)(shui)分的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)有(you)兩個方(fang)面(mian)：橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)(zai)濕潤空氣淋雨或浸(jin)泡在(zai)(zai)水(shui)(shui)中(zhong)時(shi)，容(rong)(rong)易(yi)破(po)(po)壞(huai)(huai)，這是(shi)由于橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)中(zhong)的(de)(de)(de)(de)水(shui)(shui)溶性(xing)(xing)物(wu)質和(he)(he)(he)清水(shui)(shui)基團等(deng)成(cheng)(cheng)分被(bei)水(shui)(shui)抽提(ti)(ti)溶解(jie)。水(shui)(shui)解(jie)或吸收等(deng)原(yuan)因(yin)引(yin)(yin)起(qi)(qi)(qi)的(de)(de)(de)(de)特別是(shi)水(shui)(shui)浸(jin)泡和(he)(he)(he)大(da)氣曝露(lu)的(de)(de)(de)(de)交替(ti)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)，會(hui)加(jia)速(su)(su)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)(de)破(po)(po)壞(huai)(huai)。但在(zai)(zai)某種情(qing)況下(xia)水(shui)(shui)分對(dui)(dui)(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)則不(bu)起(qi)(qi)(qi)破(po)(po)壞(huai)(huai)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)，甚至有(you)延緩老化(hua)(hua)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)。7其它:對(dui)(dui)(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)因(yin)素還有(you)化(hua)(hua)學(xue)介質、變價金(jin)屬離(li)子(zi)(zi)、高(gao)能(neng)(neng)(neng)輻射(she)、電(dian)和(he)(he)(he)生(sheng)物(wu)等(deng)。