一、什么是反光膜

反(fan)光(guang)膜(mo)(mo)，是利用光(guang)學原(yuan)理，能(neng)把光(guang)線逆反(fan)射回到光(guang)源處的(de)一種反(fan)光(guang)材(cai)料，是應用最為廣泛(fan)的(de)一種逆反(fan)射材(cai)料，主(zhu)要利用玻璃珠(zhu)技(ji)術(shu)，微棱鏡技(ji)術(shu)、合成(cheng)樹(shu)脂技(ji)術(shu)，薄膜(mo)(mo)技(ji)術(shu)和涂敷(fu)技(ji)術(shu)和微復制技(ji)術(shu)制成(cheng)，廣泛(fan)應用于交通領域，其顏(yan)色鮮亮，夜(ye)間可以反(fan)光(guang)，從而起到警示作用。一般反(fan)光(guang)膜(mo)(mo)主(zhu)要采用聚合物材(cai)料制成(cheng)，常見的(de)有(you)(you)PET、PC、PMMA、PVC四種材(cai)質(zhi)，不同材(cai)質(zhi)的(de)反(fan)光(guang)膜(mo)(mo)在性能(neng)和使用壽命方(fang)面有(you)(you)所(suo)差(cha)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(mai)，購買(mai)時還可以通過(guo)看(kan)材質、看(kan)亮度、看(kan)厚(hou)度、聞味道(dao)等(deng)方法判斷反光(guang)膜的質量(liang)。

三、反光膜分類與級別

反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)的(de)分類(lei)(lei)方(fang)法有很多，其中(zhong)比較普遍接(jie)受(shou)的(de)分類(lei)(lei)原則(ze)，是以逆反(fan)(fan)(fan)(fan)(fan)射單元的(de)基本(ben)結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)為(wei)(wei)(wei)(wei)(wei)(wei)基礎，根據反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)正面光(guang)(guang)(guang)(guang)度(du)性(xing)(xing)能的(de)逆反(fan)(fan)(fan)(fan)(fan)射系數高低為(wei)(wei)(wei)(wei)(wei)(wei)主的(de)排(pai)序方(fang)法，按照《道路交通(tong)(tong)(tong)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)》（GB/T 18833-2012）的(de)規定，反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)按照其光(guang)(guang)(guang)(guang)度(du)性(xing)(xing)結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)和(he)用(yong)(yong)(yong)(yong)途，分為(wei)(wei)(wei)(wei)(wei)(wei)7種類(lei)(lei)型：1、I類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)透(tou)鏡埋(mai)入式玻(bo)璃(li)珠型結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)工程級(ji)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)7年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)永(yong)久(jiu)(jiu)性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)和(he)作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)。2、II類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)透(tou)鏡埋(mai)入式玻(bo)璃(li)珠型結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)超工程級(ji)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)10年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)耐久(jiu)(jiu)性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)惡(e)化作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)。3、III類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)密封膠囊式玻(bo)璃(li)珠型結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)高強級(ji)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)10年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)永(yong)久(jiu)(jiu)性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)和(he)作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)。4、IV類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)超強級(ji)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)10年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)永(yong)久(jiu)(jiu)性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)、作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)和(he)輪(lun)(lun)(lun)廓標(biao)(biao)(biao)。5、V類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，稱(cheng)大角度(du)反(fan)(fan)(fan)(fan)(fan)光(guang)(guang)(guang)(guang)膜(mo)(mo)(mo)(mo)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)10年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)永(yong)久(jiu)(jiu)性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)、作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)和(he)輪(lun)(lun)(lun)廓標(biao)(biao)(biao)。6、VI類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，有金屬鍍層(ceng)，使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)3年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)輪(lun)(lun)(lun)廓標(biao)(biao)(biao)和(he)交通(tong)(tong)(tong)柱，無金屬鍍層(ceng)時也可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)和(he)字(zi)符較少的(de)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)。7、VII類(lei)(lei)：通(tong)(tong)(tong)常(chang)為(wei)(wei)(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)(gou)(gou)，柔性(xing)(xing)材質、使(shi)用(yong)(yong)(yong)(yong)壽(shou)(shou)命(ming)一(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)(wei)(wei)3年(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)(yu)臨時性(xing)(xing)交通(tong)(tong)(tong)標(biao)(biao)(biao)志(zhi)(zhi)(zhi)和(he)作(zuo)(zuo)(zuo)(zuo)業(ye)(ye)區(qu)(qu)(qu)設施(shi)(shi)。

四、反光膜的作用

反(fan)(fan)光(guang)(guang)膜(mo)是(shi)現(xian)代交(jiao)通(tong)(tong)工程中常用(yong)的(de)一(yi)種材料，具(ju)有良(liang)好的(de)反(fan)(fan)光(guang)(guang)效果，用(yong)于制作(zuo)各類反(fan)(fan)光(guang)(guang)標(biao)(biao)(biao)志標(biao)(biao)(biao)牌、車(che)(che)輛號牌及安全設施等。反(fan)(fan)光(guang)(guang)膜(mo)顏(yan)色鮮亮，在(zai)晚上或(huo)是(shi)燈光(guang)(guang)不足(zu)的(de)情況下，反(fan)(fan)光(guang)(guang)膜(mo)能利(li)用(yong)其反(fan)(fan)光(guang)(guang)效果將光(guang)(guang)線(xian)反(fan)(fan)射回來，提高在(zai)夜間(jian)和惡劣天氣下行車(che)(che)者對交(jiao)通(tong)(tong)標(biao)(biao)(biao)志牌的(de)識別度，讓人們更容易看到(dao)警(jing)示(shi)(shi)牌，從而起(qi)到(dao)警(jing)示(shi)(shi)作(zuo)用(yong)，預防事(shi)故發生。除了公路(lu)交(jiao)通(tong)(tong)標(biao)(biao)(biao)志牌上常見(jian)(jian)以外，在(zai)汽車(che)(che)車(che)(che)牌上、車(che)(che)身標(biao)(biao)(biao)識上、廠區指(zhi)示(shi)(shi)系統(tong)、路(lu)牌、門牌號、廣告(gao)標(biao)(biao)(biao)識、公益指(zhi)示(shi)(shi)牌等方面也比較常見(jian)(jian)。