一、什么是反光膜

反(fan)光膜(mo)(mo)，是利(li)用(yong)光學(xue)原(yuan)理，能把光線逆(ni)(ni)反(fan)射回到(dao)(dao)光源處(chu)的(de)一種反(fan)光材料，是應用(yong)最為(wei)廣泛的(de)一種逆(ni)(ni)反(fan)射材料，主(zhu)要(yao)利(li)用(yong)玻璃珠技術(shu)(shu)(shu)，微棱(leng)鏡(jing)技術(shu)(shu)(shu)、合成樹脂技術(shu)(shu)(shu)，薄膜(mo)(mo)技術(shu)(shu)(shu)和(he)(he)涂敷技術(shu)(shu)(shu)和(he)(he)微復制技術(shu)(shu)(shu)制成，廣泛應用(yong)于交通領域(yu)，其(qi)顏(yan)色(se)鮮亮，夜間可以反(fan)光，從(cong)而(er)起(qi)到(dao)(dao)警示(shi)作用(yong)。一般反(fan)光膜(mo)(mo)主(zhu)要(yao)采用(yong)聚合物(wu)材料制成，常見的(de)有PET、PC、PMMA、PVC四種材質，不同材質的(de)反(fan)光膜(mo)(mo)在(zai)性能和(he)(he)使(shi)用(yong)壽命方(fang)面有所(suo)差別。

二、反光膜多少錢一平方

一般來說，反光膜有Ⅰ到Ⅶ類七個等級，不同等級的反光膜價格有所不同，除此之外，反光膜價格還會受到其顏色圖案、尺寸規格、生產廠家、材質做工等因素的影響，一般在80~120元/㎡左右，如果需要特殊定制印字、貼字的話，價格可能更高，具體價格要咨詢商家。反光膜作為反光材料，在很多地方都可以買到，像五金店、建材市場、部分汽車用品店都有賣的，也可以網購；如果購買量比較大的話，建議聯系專門的反光膜生產廠家采購，批量采購價格會優惠一些，注意選擇好的反光膜品牌購買，購買時(shi)還可以通過看(kan)材質、看(kan)亮度(du)、看(kan)厚度(du)、聞味(wei)道等方法判(pan)斷反光膜的質量(liang)。

三、反光膜分類與級別

反(fan)(fan)光膜(mo)的(de)(de)分類(lei)(lei)方法(fa)有(you)很多，其中比較普遍(bian)接受的(de)(de)分類(lei)(lei)原則，是以逆(ni)反(fan)(fan)射單元的(de)(de)基本結(jie)(jie)構(gou)(gou)(gou)(gou)為(wei)(wei)(wei)基礎，根據反(fan)(fan)光膜(mo)正面光度(du)性(xing)能的(de)(de)逆(ni)反(fan)(fan)射系(xi)數高低(di)為(wei)(wei)(wei)主(zhu)的(de)(de)排序方法(fa)，按(an)照《道路交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)反(fan)(fan)光膜(mo)》（GB/T 18833-2012）的(de)(de)規定，反(fan)(fan)光膜(mo)按(an)照其光度(du)性(xing)結(jie)(jie)構(gou)(gou)(gou)(gou)和(he)(he)(he)(he)用(yong)(yong)(yong)(yong)途，分為(wei)(wei)(wei)7種類(lei)(lei)型(xing)(xing)：1、I類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)透(tou)鏡(jing)埋入式(shi)玻璃珠型(xing)(xing)結(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)工程級(ji)反(fan)(fan)光膜(mo)，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)7年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)永(yong)(yong)久性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)和(he)(he)(he)(he)作業(ye)區(qu)(qu)設施。2、II類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)透(tou)鏡(jing)埋入式(shi)玻璃珠型(xing)(xing)結(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)超(chao)工程級(ji)反(fan)(fan)光膜(mo)，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)10年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)耐(nai)久性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)惡化作業(ye)區(qu)(qu)設施。3、III類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)密封膠囊式(shi)玻璃珠型(xing)(xing)結(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)高強級(ji)反(fan)(fan)光膜(mo)，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)10年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)永(yong)(yong)久性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)和(he)(he)(he)(he)作業(ye)區(qu)(qu)設施。4、IV類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)微棱(leng)鏡(jing)結(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)超(chao)強級(ji)反(fan)(fan)光膜(mo)，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)10年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)永(yong)(yong)久性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)、作業(ye)區(qu)(qu)設施和(he)(he)(he)(he)輪(lun)(lun)廓(kuo)標(biao)(biao)。5、V類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)微棱(leng)鏡(jing)結(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)大(da)角(jiao)度(du)反(fan)(fan)光膜(mo)，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)10年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)永(yong)(yong)久性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)、作業(ye)區(qu)(qu)設施和(he)(he)(he)(he)輪(lun)(lun)廓(kuo)標(biao)(biao)。6、VI類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)微棱(leng)鏡(jing)結(jie)(jie)構(gou)(gou)(gou)(gou)，有(you)金屬鍍層，使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)3年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)輪(lun)(lun)廓(kuo)標(biao)(biao)和(he)(he)(he)(he)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)柱，無金屬鍍層時也(ye)可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)作業(ye)區(qu)(qu)設施和(he)(he)(he)(he)字符(fu)較少(shao)的(de)(de)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)。7、VII類(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)為(wei)(wei)(wei)微棱(leng)鏡(jing)結(jie)(jie)構(gou)(gou)(gou)(gou)，柔性(xing)材質、使用(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般為(wei)(wei)(wei)3年(nian)(nian)(nian)，可(ke)(ke)(ke)(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)(yu)臨時性(xing)交(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)志(zhi)和(he)(he)(he)(he)作業(ye)區(qu)(qu)設施。

四、反光膜的作用

反(fan)(fan)光膜(mo)(mo)是現(xian)代(dai)交(jiao)通工程中常用(yong)的一種材(cai)料，具有良(liang)好的反(fan)(fan)光效(xiao)果(guo)，用(yong)于制作各(ge)類反(fan)(fan)光標(biao)(biao)志標(biao)(biao)牌、車(che)輛號牌及安全設施(shi)等。反(fan)(fan)光膜(mo)(mo)顏色(se)鮮亮，在(zai)晚上或(huo)是燈(deng)光不足的情(qing)況下，反(fan)(fan)光膜(mo)(mo)能利用(yong)其反(fan)(fan)光效(xiao)果(guo)將光線反(fan)(fan)射回來(lai)，提高在(zai)夜間和(he)惡劣天氣下行車(che)者對交(jiao)通標(biao)(biao)志牌的識別度，讓人們更容易看到警(jing)示牌，從而起到警(jing)示作用(yong)，預防事故發生。除了公路交(jiao)通標(biao)(biao)志牌上常見以外，在(zai)汽車(che)車(che)牌上、車(che)身標(biao)(biao)識上、廠(chang)區指示系(xi)統、路牌、門牌號、廣(guang)告標(biao)(biao)識、公益指示牌等方面(mian)也比較常見。