一、什么是反光膜

反光膜(mo)(mo)，是利用(yong)(yong)(yong)光學原理，能把(ba)光線逆反射回(hui)到光源處的(de)一種(zhong)反光材(cai)料，是應(ying)用(yong)(yong)(yong)最為廣泛的(de)一種(zhong)逆反射材(cai)料，主要利用(yong)(yong)(yong)玻璃(li)珠技(ji)(ji)(ji)(ji)(ji)術(shu)，微(wei)棱(leng)鏡(jing)技(ji)(ji)(ji)(ji)(ji)術(shu)、合成(cheng)樹脂(zhi)技(ji)(ji)(ji)(ji)(ji)術(shu)，薄(bo)膜(mo)(mo)技(ji)(ji)(ji)(ji)(ji)術(shu)和涂敷技(ji)(ji)(ji)(ji)(ji)術(shu)和微(wei)復制(zhi)技(ji)(ji)(ji)(ji)(ji)術(shu)制(zhi)成(cheng)，廣泛應(ying)用(yong)(yong)(yong)于交通領域，其(qi)顏色鮮亮，夜間可以反光，從而起到警示(shi)作(zuo)用(yong)(yong)(yong)。一般反光膜(mo)(mo)主要采用(yong)(yong)(yong)聚合物(wu)材(cai)料制(zhi)成(cheng)，常見的(de)有(you)PET、PC、PMMA、PVC四種(zhong)材(cai)質，不同材(cai)質的(de)反光膜(mo)(mo)在性能和使用(yong)(yong)(yong)壽命方面有(you)所差別。

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，購買時還(huan)可以通過看材(cai)質(zhi)(zhi)、看亮度、看厚度、聞味道等(deng)方法判斷(duan)反(fan)光膜的質(zhi)(zhi)量。

三、反光膜分類與級別

反光(guang)膜(mo)的分(fen)類(lei)(lei)方法有(you)很多，其中比較普(pu)遍(bian)接受的分(fen)類(lei)(lei)原(yuan)則，是以(yi)逆反射單元的基本(ben)結(jie)(jie)構(gou)為基礎，根據反光(guang)膜(mo)正(zheng)面(mian)光(guang)度性能(neng)的逆反射系數高低為主的排序方法，按(an)照(zhao)《道(dao)路交通(tong)(tong)(tong)(tong)反光(guang)膜(mo)》（GB/T 18833-2012）的規定，反光(guang)膜(mo)按(an)照(zhao)其光(guang)度性結(jie)(jie)構(gou)和用(yong)(yong)(yong)(yong)(yong)途，分(fen)為7種(zhong)類(lei)(lei)型(xing)：1、I類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為透(tou)鏡埋(mai)入式(shi)玻璃(li)珠(zhu)(zhu)型(xing)結(jie)(jie)構(gou)，稱工(gong)程級反光(guang)膜(mo)，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為7年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)永久(jiu)性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志和作業(ye)區(qu)(qu)設(she)施(shi)(shi)。2、II類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為透(tou)鏡埋(mai)入式(shi)玻璃(li)珠(zhu)(zhu)型(xing)結(jie)(jie)構(gou)，稱超工(gong)程級反光(guang)膜(mo)，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為10年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)耐(nai)久(jiu)性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志惡化作業(ye)區(qu)(qu)設(she)施(shi)(shi)。3、III類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為密(mi)封膠囊式(shi)玻璃(li)珠(zhu)(zhu)型(xing)結(jie)(jie)構(gou)，稱高強級反光(guang)膜(mo)，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為10年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)永久(jiu)性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志和作業(ye)區(qu)(qu)設(she)施(shi)(shi)。4、IV類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為微(wei)棱鏡結(jie)(jie)構(gou)，稱超強級反光(guang)膜(mo)，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為10年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)永久(jiu)性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志、作業(ye)區(qu)(qu)設(she)施(shi)(shi)和輪(lun)(lun)廓(kuo)(kuo)標(biao)(biao)(biao)。5、V類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為微(wei)棱鏡結(jie)(jie)構(gou)，稱大角度反光(guang)膜(mo)，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為10年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)永久(jiu)性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志、作業(ye)區(qu)(qu)設(she)施(shi)(shi)和輪(lun)(lun)廓(kuo)(kuo)標(biao)(biao)(biao)。6、VI類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為微(wei)棱鏡結(jie)(jie)構(gou)，有(you)金屬(shu)鍍(du)(du)層，使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為3年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)輪(lun)(lun)廓(kuo)(kuo)標(biao)(biao)(biao)和交通(tong)(tong)(tong)(tong)柱，無金屬(shu)鍍(du)(du)層時也(ye)可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)作業(ye)區(qu)(qu)設(she)施(shi)(shi)和字符較少的交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志。7、VII類(lei)(lei)：通(tong)(tong)(tong)(tong)常(chang)為微(wei)棱鏡結(jie)(jie)構(gou)，柔性材質、使(shi)用(yong)(yong)(yong)(yong)(yong)壽(shou)命(ming)一(yi)般(ban)為3年(nian)(nian)，可(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于(yu)(yu)臨時性交通(tong)(tong)(tong)(tong)標(biao)(biao)(biao)志和作業(ye)區(qu)(qu)設(she)施(shi)(shi)。

四、反光膜的作用

反光(guang)(guang)(guang)膜是(shi)現代交(jiao)通(tong)工(gong)程中常用的(de)一種材料，具有良好(hao)的(de)反光(guang)(guang)(guang)效果，用于(yu)制作(zuo)各類反光(guang)(guang)(guang)標(biao)志標(biao)牌(pai)(pai)、車(che)輛(liang)號(hao)牌(pai)(pai)及安全設施(shi)等(deng)。反光(guang)(guang)(guang)膜顏色鮮亮，在晚上(shang)(shang)或是(shi)燈光(guang)(guang)(guang)不足的(de)情況下，反光(guang)(guang)(guang)膜能(neng)利用其反光(guang)(guang)(guang)效果將光(guang)(guang)(guang)線反射回(hui)來(lai)，提高(gao)在夜間和惡劣天氣下行車(che)者對交(jiao)通(tong)標(biao)志牌(pai)(pai)的(de)識別度，讓人(ren)們更(geng)容易看到警(jing)示(shi)(shi)牌(pai)(pai)，從而起(qi)到警(jing)示(shi)(shi)作(zuo)用，預防事故發(fa)生。除了公(gong)路(lu)交(jiao)通(tong)標(biao)志牌(pai)(pai)上(shang)(shang)常見(jian)以(yi)外，在汽車(che)車(che)牌(pai)(pai)上(shang)(shang)、車(che)身標(biao)識上(shang)(shang)、廠區指示(shi)(shi)系統、路(lu)牌(pai)(pai)、門(men)牌(pai)(pai)號(hao)、廣告標(biao)識、公(gong)益(yi)指示(shi)(shi)牌(pai)(pai)等(deng)方面也(ye)比(bi)較常見(jian)。