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聚氨酯彈性體優異的性能特點
更新時間：2020-02-28      瀏覽：
聚氨酯彈(dan)性體優異的性能特點：
　　我們是(shi)主要以(yi)研制，開發(fa)和生產(chan)(chan)--澆(jiao)注型(xing)聚氨酯(zhi)彈性(xing)(xing)體(ti)制品(pin)為主的生產(chan)(chan)廠(chang)家。因綜合性(xing)(xing)能最好，澆(jiao)注型(xing)聚氨酯(zhi)的產(chan)(chan)量約占其60%以(yi)上，是(shi)應(ying)用十分廣泛的最重要的聚氨酯(zhi)彈性(xing)(xing)體(ti)品(pin)種。
　　1，聚氨酯py3jj.cn加工方式簡單，方便，易于自動化，連續化生產。在澆注型聚氨酯彈性體的操作工藝生產中，原料均成液體，它們在液態下進行計量，混合，反應，直至澆注在模具中，這樣有利于進行機械化連續性生產。在某種意義上講，這種先進的液態加工過程中是對傳統橡膠生產方式的一種"改革"。
　　2，在目前(qian)所知的彈性(xing)(xing)(xing)體中，澆(jiao)注(zhu)型聚氨酯彈性(xing)(xing)(xing)體的耐磨(mo)(mo)性(xing)(xing)(xing)能(neng)是最好(hao)的。根據實驗室(shi)對其(qi)磨(mo)(mo)耗(hao)性(xing)(xing)(xing)能(neng)的測定(ding)，是普(pu)通天然橡(xiang)膠的3-5倍，若在有(you)一定(ding)液體的濕磨(mo)(mo)損情況下，其(qi)耐磨(mo)(mo)性(xing)(xing)(xing)甚至(zhi)比普(pu)通橡(xiang)膠高出10倍，因(yin)此人(ren)們俗稱為"耐磨(mo)(mo)橡(xiang)膠"。
　　3，澆注型聚氨(an)酯彈(dan)性體的(de)(de)高耐(nai)磨(mo)(mo)性能不僅能當做普通橡膠用于(yu)抗磨(mo)(mo)損部件的(de)(de)制造，同時還可(ke)以在(zai)一定程(cheng)度上取代傳(chuan)統的(de)(de)金屬材料。良好的(de)(de)耐(nai)磨(mo)(mo)性，緩沖，抗沖擊性，耐(nai)疲勞，耐(nai)腐蝕，低噪音等性能是傳(chuan)統金屬的(de)(de)一種補充。
　　4，澆注(zhu)型聚(ju)氨酯彈性(xing)(xing)體的(de)硬(ying)度變化范圍(wei)廣（邵A20-邵D80),在高硬(ying)度情況下仍(reng)能保持良好的(de)彈性(xing)(xing)，這是(shi)普通塑料等材(cai)料很難(nan)具備的(de)性(xing)(xing)能。
　　5，具有(you)優異的力學機械性(xing)能。普通(tong)天然膠(jiao)，氯(lv)丁膠(jiao)等的抗(kang)張強度一般(ban)都(dou)低于(yu)30Mps，但澆注型聚氨(an)酯彈性(xing)體(ti)的抗(kang)張強度通(tong)常均大于(yu)40Mps,抗(kang)撕裂性(xing)能一般(ban)都(dou)比(bi)普通(tong)橡膠(jiao)材料高很多(duo)。
　　6，耐油(you)(you)性(xing)能優越。聚酯型聚氨酯的耐油(you)(you)性(xing)能可與傳統橡膠(jiao)中(zhong)耐油(you)(you)性(xing)能最好的丁(ding)晴(qing)橡膠(jiao)相似，而優于天(tian)然，氯丁(ding)等(deng)普(pu)通橡膠(jiao)。
　　7，耐氧(yang)，耐臭氧(yang)性能突出。據美國Goodyear公(gong)司(si)對某些橡膠材料在100℃下進行160h的(de)吸氧(yang)體積測定，天然(ran)膠92mL/g;丁(ding)苯膠18mL/g;聚(ju)氨酯0.64mL/g。
　　8，符合(he)能力(li)高(gao)(gao)。制備(bei)中(zhong)的沖彈元件(jian)，緩沖元件(jian)的承載(zai)(zai)能力(li)高(gao)(gao)，使用過程中(zhong)不(bu)會出現(xian)龜裂，而普通橡膠存在在高(gao)(gao)承載(zai)(zai)力(li)的負(fu)荷(he)下將(jiang)會出現(xian)龜裂等缺陷。

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