容易進(jin)項橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)層老(lao)(lao)化(hua)(hua)(hua)(hua)、脫(tuo)落現(xian)象，使用(yong)(yong)(yong)(yong)(yong)(yong)過(guo)(guo)程中(zhong)。保定(ding)八達膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)帶(dai)有(you)(you)(you)限公司經過(guo)(guo)研究，引(yin)(yin)起(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)老(lao)(lao)化(hua)(hua)(hua)(hua)的(de)(de)因素(su)(su)有(you)(you)(you)一(yi)下(xia)幾方(fang)(fang)面(mian)：1氧(yang)(yang)(yang)(yang)(yang)：氧(yang)(yang)(yang)(yang)(yang)在(zai)(zai)(zai)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)中(zhong)同(tong)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分(fen)子(zi)(zi)(zi)發(fa)(fa)(fa)(fa)生(sheng)游離(li)基(ji)鏈(lian)(lian)(lian)鎖反(fan)(fan)應(ying)(ying)，分(fen)子(zi)(zi)(zi)鏈(lian)(lian)(lian)發(fa)(fa)(fa)(fa)生(sheng)斷(duan)裂(lie)(lie)或(huo)過(guo)(guo)度(du)(du)交(jiao)聯(lian)(lian)，引(yin)(yin)起(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)性(xing)(xing)能(neng)的(de)(de)改變。氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)是(shi)(shi)(shi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)老(lao)(lao)化(hua)(hua)(hua)(hua)的(de)(de)重要(yao)原因之一(yi)。2臭(chou)(chou)(chou)氧(yang)(yang)(yang)(yang)(yang)、臭(chou)(chou)(chou)氧(yang)(yang)(yang)(yang)(yang)的(de)(de)化(hua)(hua)(hua)(hua)學(xue)(xue)活(huo)性(xing)(xing)比氧(yang)(yang)(yang)(yang)(yang)高(gao)(gao)得多(duo)，破(po)壞(huai)(huai)性(xing)(xing)更大，同(tong)樣是(shi)(shi)(shi)使分(fen)子(zi)(zi)(zi)鏈(lian)(lian)(lian)發(fa)(fa)(fa)(fa)生(sheng)斷(duan)裂(lie)(lie)，但(dan)臭(chou)(chou)(chou)氧(yang)(yang)(yang)(yang)(yang)對(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)情(qing)況(kuang)隨橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)變形與(yu)否(fou)而(er)不同(tong)。當作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)于變形的(de)(de)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)（主要(yao)是(shi)(shi)(shi)不飽和(he)(he)(he)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)）時，出現(xian)與(yu)應(ying)(ying)力作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)方(fang)(fang)向垂(chui)直(zhi)的(de)(de)裂(lie)(lie)紋，即所謂“臭(chou)(chou)(chou)氧(yang)(yang)(yang)(yang)(yang)龜(gui)裂(lie)(lie)”作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)于變形的(de)(de)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)時，僅外(wai)表(biao)生(sheng)成(cheng)(cheng)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)膜而(er)不龜(gui)裂(lie)(lie)。3熱(re)(re)：提高(gao)(gao)溫度(du)(du)可引(yin)(yin)起(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)熱(re)(re)裂(lie)(lie)解或(huo)熱(re)(re)交(jiao)聯(lian)(lian)。但(dan)熱(re)(re)的(de)(de)基(ji)本作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)還是(shi)(shi)(shi)活(huo)化(hua)(hua)(hua)(hua)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)。提高(gao)(gao)氧(yang)(yang)(yang)(yang)(yang)擴散(san)速(su)度(du)(du)和(he)(he)(he)活(huo)化(hua)(hua)(hua)(hua)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)反(fan)(fan)應(ying)(ying)，從而(er)加速(su)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)反(fan)(fan)應(ying)(ying)速(su)度(du)(du)，這是(shi)(shi)(shi)普遍存(cun)在(zai)(zai)(zai)一(yi)種老(lao)(lao)化(hua)(hua)(hua)(hua)現(xian)象—熱(re)(re)氧(yang)(yang)(yang)(yang)(yang)老(lao)(lao)化(hua)(hua)(hua)(hua)。4光(guang)：光(guang)波越短、能(neng)量越大。對(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)起(qi)破(po)壞(huai)(huai)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)能(neng)量較(jiao)高(gao)(gao)的(de)(de)紫外(wai)線(xian)(xian)。紫外(wai)線(xian)(xian)除了能(neng)直(zhi)接引(yin)(yin)起(qi)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分(fen)子(zi)(zi)(zi)鏈(lian)(lian)(lian)的(de)(de)斷(duan)裂(lie)(lie)和(he)(he)(he)交(jiao)聯(lian)(lian)外(wai)，橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)因吸收光(guang)能(neng)而(er)發(fa)(fa)(fa)(fa)生(sheng)游離(li)基(ji)，引(yin)(yin)發(fa)(fa)(fa)(fa)并加速(su)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)鏈(lian)(lian)(lian)反(fan)(fan)應(ying)(ying)過(guo)(guo)程。紫外(wai)線(xian)(xian)光(guang)起(qi)著加熱(re)(re)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)。光(guang)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)其另一(yi)特點（與(yu)熱(re)(re)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)不同(tong)）主要(yao)在(zai)(zai)(zai)橡(xiang)(xiang)(xiang)(xiang)(xiang)表(biao)面(mian)進(jin)生(sheng)。含膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)率高(gao)(gao)的(de)(de)試樣，兩面(mian)會出現(xian)網狀(zhuang)裂(lie)(lie)紋，即所謂“光(guang)外(wai)層裂(lie)(lie)”5機(ji)械應(ying)(ying)力：橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)輸(shu)送帶(dai)在(zai)(zai)(zai)機(ji)械應(ying)(ying)力反(fan)(fan)復(fu)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)下(xia)以及和(he)(he)(he)托輥的(de)(de)不時摩(mo)擦過(guo)(guo)程，會使橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)分(fen)子(zi)(zi)(zi)鏈(lian)(lian)(lian)斷(duan)裂(lie)(lie)生(sheng)成(cheng)(cheng)游離(li)基(ji)，引(yin)(yin)發(fa)(fa)(fa)(fa)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)鏈(lian)(lian)(lian)反(fan)(fan)應(ying)(ying)，形成(cheng)(cheng)力化(hua)(hua)(hua)(hua)學(xue)(xue)過(guo)(guo)程。機(ji)械斷(duan)裂(lie)(lie)分(fen)子(zi)(zi)(zi)鏈(lian)(lian)(lian)和(he)(he)(he)機(ji)械活(huo)化(hua)(hua)(hua)(hua)氧(yang)(yang)(yang)(yang)(yang)化(hua)(hua)(hua)(hua)過(guo)(guo)程。哪(na)個能(neng)占優勢，視(shi)其所處的(de)(de)條件而(er)定(ding)。此外(wai)，應(ying)(ying)力作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)下(xia)容易引(yin)(yin)起(qi)臭(chou)(chou)(chou)氧(yang)(yang)(yang)(yang)(yang)龜(gui)裂(lie)(lie)。6水分(fen)：水分(fen)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)有(you)(you)(you)兩個方(fang)(fang)面(mian)：橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)(zai)(zai)濕(shi)潤空氣淋雨或(huo)浸泡在(zai)(zai)(zai)水中(zhong)時，容易破(po)壞(huai)(huai)，這是(shi)(shi)(shi)由(you)于橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)中(zhong)的(de)(de)水溶(rong)性(xing)(xing)物(wu)質和(he)(he)(he)清水基(ji)團(tuan)等成(cheng)(cheng)分(fen)被(bei)水抽提溶(rong)解。水解或(huo)吸收等原因引(yin)(yin)起(qi)的(de)(de)特別(bie)是(shi)(shi)(shi)水浸泡和(he)(he)(he)大氣曝露(lu)的(de)(de)交(jiao)替作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)下(xia)，會加速(su)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)破(po)壞(huai)(huai)。但(dan)在(zai)(zai)(zai)某種情(qing)況(kuang)下(xia)水分(fen)對(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)則不起(qi)破(po)壞(huai)(huai)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)，甚至有(you)(you)(you)延緩老(lao)(lao)化(hua)(hua)(hua)(hua)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)。7其它:對(dui)橡(xiang)(xiang)(xiang)(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)的(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)(yong)因素(su)(su)還有(you)(you)(you)化(hua)(hua)(hua)(hua)學(xue)(xue)介(jie)質、變價金(jin)屬離(li)子(zi)(zi)(zi)、高(gao)(gao)能(neng)輻(fu)射、電和(he)(he)(he)生(sheng)物(wu)等。
