中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)是由兩(liang)片或多片平板玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)，周(zhou)邊(bian)(bian)用間(jian)隔(ge)框分(fen)開，并用密(mi)(mi)(mi)封(feng)膠密(mi)(mi)(mi)封(feng)，使(shi)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)層(ceng)間(jian)形成有干燥(zao)氣(qi)體(ti)(ti)(ti)空(kong)(kong)(kong)(kong)(kong)間(jian)的(de)(de)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)深加工產品(pin)。需要提醒(xing)注意的(de)(de)是中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)的(de)(de)邊(bian)(bian)緣是用密(mi)(mi)(mi)封(feng)膠嚴格密(mi)(mi)(mi)封(feng)的(de)(de)，中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)內(nei)腔充有干燥(zao)的(de)(de)空(kong)(kong)(kong)(kong)(kong)氣(qi)或惰性氣(qi)體(ti)(ti)(ti)，該部分(fen)氣(qi)體(ti)(ti)(ti)之被長期密(mi)(mi)(mi)封(feng)在腔內(nei)，無法與外(wai)(wai)界(jie)空(kong)(kong)(kong)(kong)(kong)氣(qi)進行對流，因(yin)此(ci)，中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)兩(liang)邊(bian)(bian)的(de)(de)熱(re)(re)量不會(hui)因(yin)為玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)間(jian)氣(qi)體(ti)(ti)(ti)的(de)(de)對流而帶走熱(re)(re)量。另一(yi)方(fang)面，空(kong)(kong)(kong)(kong)(kong)氣(qi)是熱(re)(re)的(de)(de)不良導體(ti)(ti)(ti)，用密(mi)(mi)(mi)封(feng)氣(qi)體(ti)(ti)(ti)隔(ge)開的(de)(de)兩(liang)層(ceng)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)相互熱(re)(re)傳(chuan)導很少(shao)，從而起到良好的(de)(de)隔(ge)熱(re)(re)作用。此(ci)外(wai)(wai)，在中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)兩(liang)邊(bian)(bian)出現(xian)很大(da)溫(wen)(wen)差(cha)時(shi)(shi)，由于一(yi)片玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)只感受一(yi)側溫(wen)(wen)度，單片玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)的(de)(de)兩(liang)個表面不會(hui)有很大(da)的(de)(de)溫(wen)(wen)差(cha)。因(yin)此(ci)，在中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)內(nei)外(wai)(wai)溫(wen)(wen)差(cha)不是特別大(da)時(shi)(shi)（≥100℃）時(shi)(shi)，不會(hui)產生結(jie)霜(shuang)、結(jie)露的(de)(de)現(xian)象。另外(wai)(wai)，還有一(yi)點需要說明的(de)(de)是中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)不是真空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)，中(zhong)(zhong)空(kong)(kong)(kong)(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)內(nei)腔氣(qi)體(ti)(ti)(ti)的(de)(de)壓力基本與外(wai)(wai)界(jie)一(yi)致，否則非常(chang)容易造成玻(bo)(bo)(bo)(bo)璃(li)(li)(li)(li)(li)(li)的(de)(de)破碎。

　　通過(guo)以(yi)上解釋，可(ke)以(yi)知道中(zhong)空(kong)玻(bo)璃(li)(li)和普(pu)通雙(shuang)層玻(bo)璃(li)(li)有著本(ben)質(zhi)的(de)(de)區別(bie)。兩者最本(ben)質(zhi)的(de)(de)區別(bie)是前者密封(feng)，后者不(bu)密封(feng)。正(zheng)是由于雙(shuang)層玻(bo)璃(li)(li)的(de)(de)不(bu)密封(feng)使(shi)得灰塵、水汽很容易進入玻(bo)璃(li)(li)內腔，水汽遇(yu)冷結霜(shuang)，遇(yu)熱結露，附著在(zai)玻(bo)璃(li)(li)內表面的(de)(de)灰塵永遠不(bu)能清除，安(an)裝使(shi)用不(bu)久，就會使(shi)窗戶的(de)(de)玻(bo)璃(li)(li)模糊一(yi)片，污(wu)穢不(bu)堪。當然，雙(shuang)層玻(bo)璃(li)(li)在(zai)一(yi)定程度上也能起一(yi)定的(de)(de)隔(ge)音、隔(ge)熱作(zuo)用，但性能卻和中(zhong)空(kong)玻(bo)璃(li)(li)相差甚遠。

　　中(zhong)空(kong)(kong)玻璃(li)構(gou)造通常是指(zhi)中(zhong)空(kong)(kong)玻璃(li)的(de)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)結(jie)構(gou)。中(zhong)空(kong)(kong)玻璃(li)的(de)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)結(jie)構(gou)主要有二(er)：單道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)和(he)雙道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)。單道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)結(jie)構(gou)是指(zhi)中(zhong)空(kong)(kong)玻璃(li)結(jie)構(gou)只(zhi)打一道(dao)膠(jiao)(jiao)(jiao)(jiao)(jiao)，可(ke)選擇硅酮(tong)膠(jiao)(jiao)(jiao)(jiao)(jiao)、聚(ju)硫膠(jiao)(jiao)(jiao)(jiao)(jiao)、聚(ju)胺(an)酯、熱融丁基膠(jiao)(jiao)(jiao)(jiao)(jiao)或(huo)舒適膠(jiao)(jiao)(jiao)(jiao)(jiao)條(tiao)。雙道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)結(jie)構(gou)是指(zhi)中(zhong)空(kong)(kong)玻璃(li)結(jie)構(gou)打兩道(dao)膠(jiao)(jiao)(jiao)(jiao)(jiao)，通常使用聚(ju)異(yi)丁烯膠(jiao)(jiao)(jiao)(jiao)(jiao)作(zuo)第(di)一道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)配之與具有結(jie)構(gou)性(xing)的(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)如聚(ju)硫膠(jiao)(jiao)(jiao)(jiao)(jiao)或(huo)硅酮(tong)膠(jiao)(jiao)(jiao)(jiao)(jiao)作(zuo)為第(di)二(er)道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)。一般(ban)來說(shuo)，雙道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)系統中(zhong)，用于第(di)一道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)的(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)抗(kang)水汽(qi)(qi)透過(guo)率(lv)高但結(jie)構(gou)性(xing)差，而第(di)二(er)道(dao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)膠(jiao)(jiao)(jiao)(jiao)(jiao)的(de)結(jie)構(gou)性(xing)能高，抗(kang)水汽(qi)(qi)透過(guo)率(lv)差。