一、什么是反光膜

反光(guang)(guang)膜，是利用(yong)(yong)光(guang)(guang)學原理，能把光(guang)(guang)線逆反射回(hui)到(dao)光(guang)(guang)源處的一(yi)種反光(guang)(guang)材(cai)(cai)料(liao)，是應(ying)用(yong)(yong)最(zui)為廣(guang)泛的一(yi)種逆反射材(cai)(cai)料(liao)，主(zhu)要利用(yong)(yong)玻璃珠技(ji)術(shu)，微棱鏡技(ji)術(shu)、合成(cheng)樹脂(zhi)技(ji)術(shu)，薄膜技(ji)術(shu)和(he)(he)涂敷技(ji)術(shu)和(he)(he)微復制(zhi)技(ji)術(shu)制(zhi)成(cheng)，廣(guang)泛應(ying)用(yong)(yong)于交(jiao)通領域(yu)，其顏色鮮亮，夜間可以反光(guang)(guang)，從而(er)起到(dao)警示(shi)作(zuo)用(yong)(yong)。一(yi)般(ban)反光(guang)(guang)膜主(zhu)要采用(yong)(yong)聚合物(wu)材(cai)(cai)料(liao)制(zhi)成(cheng)，常(chang)見的有PET、PC、PMMA、PVC四種材(cai)(cai)質(zhi)，不同材(cai)(cai)質(zhi)的反光(guang)(guang)膜在性(xing)能和(he)(he)使用(yong)(yong)壽命方(fang)面(mian)有所差別。

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(gou)買(mai)，購(gou)買(mai)時還可以通過看材質、看亮度、看厚度、聞味道等方法判(pan)斷反光膜(mo)的質量。

三、反光膜分類與級別

反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)的(de)(de)分類(lei)(lei)(lei)方法有很(hen)多(duo)，其中(zhong)比較普(pu)遍接受的(de)(de)分類(lei)(lei)(lei)原則(ze)，是以逆(ni)反(fan)(fan)(fan)射(she)單元的(de)(de)基本(ben)結(jie)(jie)(jie)構(gou)(gou)為(wei)(wei)(wei)(wei)基礎，根據反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)正(zheng)面光(guang)(guang)度性能的(de)(de)逆(ni)反(fan)(fan)(fan)射(she)系數(shu)高(gao)低為(wei)(wei)(wei)(wei)主的(de)(de)排序方法，按照《道路交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)》（GB/T 18833-2012）的(de)(de)規定(ding)，反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)按照其光(guang)(guang)度性結(jie)(jie)(jie)構(gou)(gou)和用(yong)(yong)(yong)(yong)途，分為(wei)(wei)(wei)(wei)7種類(lei)(lei)(lei)型(xing)(xing)：1、I類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)透鏡埋(mai)入式玻(bo)璃(li)珠(zhu)型(xing)(xing)結(jie)(jie)(jie)構(gou)(gou)，稱(cheng)(cheng)工程級(ji)(ji)(ji)反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)7年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)永(yong)久(jiu)(jiu)性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)和作(zuo)業(ye)(ye)(ye)區(qu)設(she)施。2、II類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)透鏡埋(mai)入式玻(bo)璃(li)珠(zhu)型(xing)(xing)結(jie)(jie)(jie)構(gou)(gou)，稱(cheng)(cheng)超(chao)工程級(ji)(ji)(ji)反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)耐久(jiu)(jiu)性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)惡化作(zuo)業(ye)(ye)(ye)區(qu)設(she)施。3、III類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)密(mi)封膠囊式玻(bo)璃(li)珠(zhu)型(xing)(xing)結(jie)(jie)(jie)構(gou)(gou)，稱(cheng)(cheng)高(gao)強級(ji)(ji)(ji)反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)永(yong)久(jiu)(jiu)性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)和作(zuo)業(ye)(ye)(ye)區(qu)設(she)施。4、IV類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)，稱(cheng)(cheng)超(chao)強級(ji)(ji)(ji)反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)永(yong)久(jiu)(jiu)性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)、作(zuo)業(ye)(ye)(ye)區(qu)設(she)施和輪(lun)(lun)廓標(biao)。5、V類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)，稱(cheng)(cheng)大角度反(fan)(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)永(yong)久(jiu)(jiu)性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)、作(zuo)業(ye)(ye)(ye)區(qu)設(she)施和輪(lun)(lun)廓標(biao)。6、VI類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)，有金屬鍍層，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)3年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)輪(lun)(lun)廓標(biao)和交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)柱，無(wu)金屬鍍層時也(ye)可(ke)用(yong)(yong)(yong)(yong)于(yu)作(zuo)業(ye)(ye)(ye)區(qu)設(she)施和字符較少的(de)(de)交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)。7、VII類(lei)(lei)(lei)：通(tong)(tong)(tong)(tong)(tong)常為(wei)(wei)(wei)(wei)微棱(leng)鏡結(jie)(jie)(jie)構(gou)(gou)，柔性材質、使(shi)(shi)用(yong)(yong)(yong)(yong)壽命(ming)(ming)一(yi)(yi)(yi)(yi)般(ban)為(wei)(wei)(wei)(wei)3年(nian)(nian)，可(ke)用(yong)(yong)(yong)(yong)于(yu)臨(lin)時性交(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)標(biao)志(zhi)(zhi)(zhi)和作(zuo)業(ye)(ye)(ye)區(qu)設(she)施。

四、反光膜的作用

反(fan)光(guang)(guang)(guang)膜(mo)是(shi)現代(dai)交(jiao)通工程中(zhong)常用的(de)一種材料(liao)，具(ju)有良(liang)好的(de)反(fan)光(guang)(guang)(guang)效(xiao)果(guo)，用于(yu)制作各類反(fan)光(guang)(guang)(guang)標志(zhi)(zhi)(zhi)標牌(pai)、車(che)(che)輛號(hao)牌(pai)及安(an)全(quan)設施等(deng)。反(fan)光(guang)(guang)(guang)膜(mo)顏(yan)色鮮亮，在(zai)晚上或是(shi)燈光(guang)(guang)(guang)不足的(de)情況下，反(fan)光(guang)(guang)(guang)膜(mo)能利用其(qi)反(fan)光(guang)(guang)(guang)效(xiao)果(guo)將光(guang)(guang)(guang)線反(fan)射回來，提高在(zai)夜間和惡(e)劣天(tian)氣下行車(che)(che)者對交(jiao)通標志(zhi)(zhi)(zhi)牌(pai)的(de)識(shi)別度，讓人們更容易看到警示(shi)牌(pai)，從而(er)起(qi)到警示(shi)作用，預(yu)防(fang)事(shi)故(gu)發生。除了(le)公路交(jiao)通標志(zhi)(zhi)(zhi)牌(pai)上常見(jian)以外(wai)，在(zai)汽車(che)(che)車(che)(che)牌(pai)上、車(che)(che)身標識(shi)上、廠區(qu)指示(shi)系統、路牌(pai)、門(men)牌(pai)號(hao)、廣告標識(shi)、公益指示(shi)牌(pai)等(deng)方面(mian)也比較常見(jian)。