全自動封膠機廠家救國研究發現，導致中空玻璃起霧的原因無非是：密封失效而漏氣，或密封完好但干燥劑不能完全吸收中空腔體內的水汽，在室內外溫差的作用下腔體內水汽凝結在玻璃表面發生結露現象。所謂結露就像我們平時吃的雪糕一樣，我們用紙巾把塑料包裝表面上的水擦干后，很快表面又有新的水滴產生，這是因為空氣中的水汽遇冷凝結在雪糕包裝外表面（即溫差作用）。
According to the national salvation study by the manufacturer of automatic sealant machine, the causes of fogging in hollow glass are as follows: the seal fails and leaks, or the seal is intact, but the desiccant can not absorb the water vapor in the hollow cavity completely, and the water vapor in the cavity condenses on the glass surface under the action of the temperature difference between indoor and outdoor. The so-called condensation is just like the ice-cream we usually eat. After we wipe the water on the plastic packaging surface with paper towels, new water droplets will appear on the surface soon. This is because the moisture in the air condenses on the outside surface of the ice-cream packaging (i.e. the effect of temperature difference).
所以，只有做好了以下四點，中空玻璃不充氣也不會起霧（結露）：
Therefore, only if the following four points are made, the hollow glass will not be inflated or foggy (condensation):
1.道密封膠即丁基膠（丁基膠帶）一定要均勻連續，壓合后寬度3mm以上。這道密封膠就是連接在鋁間隔條與玻璃之間，之所以選擇丁基膠（丁基膠帶），是因為丁基膠有著其它膠無法比擬的抗水汽滲透率和抗透氣性。可以說，中空玻璃80%以上的抗水汽滲透任務都在這一道膠上，如果密封不好，中空玻璃漏氣，做再多其它的工作玻璃也會起霧。
1. The first sealant, butyl rubber (butyl rubber tape), must be uniform and continuous, with a width of more than 3 mm after pressing. This sealant is connected between aluminium spacer and glass. The reason why butyl rubber (butyl tape) is chosen is that butyl rubber has incomparable water vapor permeability and air permeability. It can be said that more than 80% of the anti-water vapor penetration tasks of hollow glass are on this glue. If the seal is not good, the hollow glass leaks, and do more work, the glass will fog.
2.第二道密封膠的選擇。考慮到防紫外線因素，現在門窗玻璃大部分采用AB雙組份硅酮膠。硅酮膠雖然水汽密性較差，但是能起到很好的輔助密封、粘結和保護作用。

2. Selection of the second sealant. Considering the anti-ultraviolet factors, most of the windows and doors now use AB two-component silicone gel. Although the water vapor tightness of silicone gel is poor, it can play a very good auxiliary sealing, bonding and protection role.
3.中空玻璃干燥劑3A分子篩也非常重要。3A分子篩的特性是只吸收水汽，不吸收其它明顯氣體。只有足夠的3A分子篩才會把中空玻璃中空腔內的水汽吸收，保持了氣體的干燥，才不會產生起霧結露現象，質量良好的中空玻璃即使在零下70度的環境下也不會有結露現象。
3. Hollow glass desiccant 3A molecular sieve is also very important. The characteristic of 3A zeolite is that it absorbs only water vapor and does not absorb any other gases. Only enough 3A molecular sieves can absorb the water vapor in the hollow glass cavity, keep the gas dry, and will not produce fogging condensation phenomenon. Even in the environment of 70 degrees below zero, the hollow glass with good quality will not have condensation phenomenon.
4.此外，中空玻璃起不起霧還跟生產工藝有關。灌裝好分子篩的鋁間隔條，不能放置過久才合片，尤其在雨季或像廣東春季的回潮天氣，更要注意控制合片時間。因為放置過久中空玻璃會吸收空氣中的水份，吸水飽和的分子篩會失去吸咐作用，合片后因為不能吸收中空腔內的水份而產生起霧。另外，分子篩的灌裝多少也與起霧不起霧有著直接的關系。
4. In addition, it is also related to the production process that the hollow glass can not fog. Aluminum spacers for filling molecular sieves should not be placed too long before they are laminated, especially in rainy season or in spring tide weather like Guangdong Province. More attention should be paid to controlling the time of lamination. Because the hollow glass will absorb water in the air for too long, the molecular sieve with saturated water absorption will lose its adsorbing function, and fog will occur when the film is combined because it can not absorb water in the hollow cavity. In addition, the filling of molecular sieves has a direct relationship with fogging and non-fogging.
好了，以上就是本期的精彩內容了，不知道小伙伴們看完明白了沒有！如果大家還有明顯的疑問，可以隨時咨詢全自動封膠機的官網在線客服人員：http://www.txxfj.com！十分感謝大家的支持！
Okay, that's the highlight of this issue. I don't know if my little friends understand it after reading it. If you have any questions, you can always consult the official online customer service staff of automatic sealant machine: http://www.txxfj.com! Thank you very much for your support!