一、什么是反光膜

反(fan)(fan)(fan)光膜(mo)，是利用(yong)光學原理，能把光線逆反(fan)(fan)(fan)射(she)回到光源(yuan)處的(de)一種反(fan)(fan)(fan)光材(cai)(cai)料(liao)(liao)，是應用(yong)最為(wei)廣泛的(de)一種逆反(fan)(fan)(fan)射(she)材(cai)(cai)料(liao)(liao)，主要利用(yong)玻璃珠技(ji)(ji)術(shu)(shu)，微棱鏡技(ji)(ji)術(shu)(shu)、合(he)成(cheng)樹脂技(ji)(ji)術(shu)(shu)，薄膜(mo)技(ji)(ji)術(shu)(shu)和(he)(he)涂敷技(ji)(ji)術(shu)(shu)和(he)(he)微復(fu)制(zhi)技(ji)(ji)術(shu)(shu)制(zhi)成(cheng)，廣泛應用(yong)于交(jiao)通領域，其顏色鮮亮，夜間可(ke)以反(fan)(fan)(fan)光，從而起(qi)到警示作用(yong)。一般反(fan)(fan)(fan)光膜(mo)主要采用(yong)聚合(he)物材(cai)(cai)料(liao)(liao)制(zhi)成(cheng)，常見(jian)的(de)有PET、PC、PMMA、PVC四(si)種材(cai)(cai)質(zhi)，不同材(cai)(cai)質(zhi)的(de)反(fan)(fan)(fan)光膜(mo)在性能和(he)(he)使用(yong)壽命方面(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買(mai)，購買(mai)時還可以通過看材質、看亮度(du)、看厚度(du)、聞味道等方法判斷反光膜的質量。

三、反光膜分類與級別

反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)的(de)(de)分(fen)類(lei)方法有很多(duo)，其中(zhong)比(bi)較普遍接受的(de)(de)分(fen)類(lei)原則(ze)，是以逆反(fan)(fan)射單(dan)元的(de)(de)基本結構(gou)(gou)(gou)為(wei)(wei)(wei)(wei)基礎，根據反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)正面光(guang)(guang)度(du)性(xing)(xing)(xing)(xing)能的(de)(de)逆反(fan)(fan)射系數高低(di)為(wei)(wei)(wei)(wei)主(zhu)的(de)(de)排序方法，按照(zhao)《道路交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)》（GB/T 18833-2012）的(de)(de)規(gui)定，反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)按照(zhao)其光(guang)(guang)度(du)性(xing)(xing)(xing)(xing)結構(gou)(gou)(gou)和(he)用(yong)(yong)途，分(fen)為(wei)(wei)(wei)(wei)7種類(lei)型(xing)：1、I類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)透(tou)鏡(jing)埋(mai)入(ru)式玻璃(li)珠型(xing)結構(gou)(gou)(gou)，稱(cheng)(cheng)工程級反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)7年(nian)，可用(yong)(yong)于(yu)永(yong)久(jiu)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)和(he)作(zuo)業區(qu)設施(shi)。2、II類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)透(tou)鏡(jing)埋(mai)入(ru)式玻璃(li)珠型(xing)結構(gou)(gou)(gou)，稱(cheng)(cheng)超工程級反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)，可用(yong)(yong)于(yu)耐久(jiu)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)惡化作(zuo)業區(qu)設施(shi)。3、III類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)密(mi)封膠囊式玻璃(li)珠型(xing)結構(gou)(gou)(gou)，稱(cheng)(cheng)高強級反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)，可用(yong)(yong)于(yu)永(yong)久(jiu)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)和(he)作(zuo)業區(qu)設施(shi)。4、IV類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)微棱鏡(jing)結構(gou)(gou)(gou)，稱(cheng)(cheng)超強級反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)，可用(yong)(yong)于(yu)永(yong)久(jiu)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)、作(zuo)業區(qu)設施(shi)和(he)輪(lun)廓(kuo)標(biao)(biao)(biao)(biao)。5、V類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)微棱鏡(jing)結構(gou)(gou)(gou)，稱(cheng)(cheng)大角度(du)反(fan)(fan)光(guang)(guang)膜(mo)(mo)(mo)，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)10年(nian)，可用(yong)(yong)于(yu)永(yong)久(jiu)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)、作(zuo)業區(qu)設施(shi)和(he)輪(lun)廓(kuo)標(biao)(biao)(biao)(biao)。6、VI類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)微棱鏡(jing)結構(gou)(gou)(gou)，有金屬鍍(du)層，使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)3年(nian)，可用(yong)(yong)于(yu)輪(lun)廓(kuo)標(biao)(biao)(biao)(biao)和(he)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)柱，無金屬鍍(du)層時(shi)也(ye)可用(yong)(yong)于(yu)作(zuo)業區(qu)設施(shi)和(he)字符較少的(de)(de)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)。7、VII類(lei)：通(tong)(tong)(tong)(tong)(tong)(tong)(tong)常(chang)(chang)(chang)(chang)為(wei)(wei)(wei)(wei)微棱鏡(jing)結構(gou)(gou)(gou)，柔(rou)性(xing)(xing)(xing)(xing)材(cai)質、使(shi)用(yong)(yong)壽命(ming)(ming)一(yi)般(ban)為(wei)(wei)(wei)(wei)3年(nian)，可用(yong)(yong)于(yu)臨時(shi)性(xing)(xing)(xing)(xing)交(jiao)(jiao)(jiao)(jiao)(jiao)通(tong)(tong)(tong)(tong)(tong)(tong)(tong)標(biao)(biao)(biao)(biao)志(zhi)(zhi)和(he)作(zuo)業區(qu)設施(shi)。

四、反光膜的作用

反(fan)(fan)光(guang)(guang)膜(mo)是(shi)現(xian)代交通工程中常用的(de)一種材料，具(ju)有(you)良好的(de)反(fan)(fan)光(guang)(guang)效(xiao)果，用于制作各(ge)類反(fan)(fan)光(guang)(guang)標志標牌(pai)、車(che)輛號牌(pai)及安全設施等。反(fan)(fan)光(guang)(guang)膜(mo)顏色鮮亮，在(zai)(zai)晚上(shang)或是(shi)燈光(guang)(guang)不足的(de)情況下，反(fan)(fan)光(guang)(guang)膜(mo)能利(li)用其反(fan)(fan)光(guang)(guang)效(xiao)果將光(guang)(guang)線反(fan)(fan)射回來，提高在(zai)(zai)夜(ye)間(jian)和(he)惡劣天氣下行車(che)者對(dui)交通標志牌(pai)的(de)識(shi)別度，讓人們更容易看到(dao)警示(shi)牌(pai)，從而起到(dao)警示(shi)作用，預防事故發生。除了公路交通標志牌(pai)上(shang)常見以外，在(zai)(zai)汽車(che)車(che)牌(pai)上(shang)、車(che)身標識(shi)上(shang)、廠區指(zhi)示(shi)系統、路牌(pai)、門牌(pai)號、廣告標識(shi)、公益指(zhi)示(shi)牌(pai)等方面也比(bi)較常見。