聚氨酯塑膠跑道材料屬于澆注型聚(ju)氨(an)酯彈性體的一(yi)種(zhong)，由于其(qi)具有(you)高(gao)彈性和(he)高(gao)耐磨性，越來越多地應用于鋪設各種(zhong)體育運(yun)動(dong)場地，是(shi)目前(qian)國際上公認的運(yun)動(dong)場地的鋪裝(zhuang)材料之一(yi)。

塑(su)膠跑道(dao)(dao)與(yu)煤(mei)渣、沙石(shi)場地相比，具有彈性好，吸震(zhen)性能好，耐磨和(he)抗老化等(deng)優點，不污染環(huan)境(jing)，易于(yu)清(qing)潔和(he)維護(hu)管(guan)理。自第19屆奧運會(hui)之后，歷屆奧林匹克運動(dong)會(hui)的田徑(jing)賽場主跑道(dao)(dao)與(yu)輔助區均(jun)采用塑(su)膠鋪裝，塑(su)膠跑道(dao)(dao)已被國際公認為最(zui)佳比賽跑道(dao)(dao)。

塑膠(jiao)(jiao)跑(pao)道從(cong)下到(dao)上一般分為(wei)(wei)基礎層(ceng)(ceng)和膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)，一般膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)由(you)(you)彈性高分子材(cai)料(liao)(liao)構(gou)成(cheng)，膠(jiao)(jiao)面(mian)(mian)(mian)可(ke)以是有橡膠(jiao)(jiao)顆(ke)粒(li)(li)或無顆(ke)粒(li)(li)的塑膠(jiao)(jiao)跑(pao)道。膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)主(zhu)要由(you)(you)聚氨(an)酯(zhi)材(cai)料(liao)(liao)組(zu)成(cheng)的稱(cheng)為(wei)(wei)聚氨(an)酯(zhi)塑膠(jiao)(jiao)跑(pao)道，按(an)原(yuan)料(liao)(liao)組(zu)分可(ke)分為(wei)(wei)單組(zu)份塑膠(jiao)(jiao)跑(pao)道、雙(shuang)組(zu)份塑膠(jiao)(jiao)跑(pao)道；按(an)膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)構(gou)造可(ke)分為(wei)(wei)全塑型(xing)(聚氨(an)酯(zhi)膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)全部采用聚氨(an)酯(zhi)材(cai)料(liao)(liao)或橡膠(jiao)(jiao)粒(li)(li))、復合(he)型(xing)(又稱(cheng)透氣型(xing)，膠(jiao)(jiao)面(mian)(mian)(mian)層(ceng)(ceng)為(wei)(wei)雙(shuang)層(ceng)(ceng)結構(gou)) 、混(hun)合(he)型(xing)(由(you)(you)PU 膠(jiao)(jiao)粒(li)(li)或橡膠(jiao)(jiao)膠(jiao)(jiao)粒(li)(li)混(hun)合(he)后固化成(cheng)型(xing))。

塑膠跑(pao)道(dao)有(you)采用(yong)澆注方法直接鋪設常規跑(pao)道(dao)，還有(you)攜(xie)帶方便可用(yong)于(yu)多種場(chang)合折疊成(cheng)卷的橡膠板形(xing)式的便攜(xie)式跑(pao)道(dao)。隨著人們環(huan)保意識的提高和國內市場(chang)的需(xu)求，聚(ju)氨酯(zhi)塑膠跑(pao)道(dao)將向(xiang)環(huan)保、低(di)毒、無害、低(di)成(cheng)本、高性(xing)能等方向(xiang)發展(zhan)。