Comparison of advantages and disadvantages between flat ce
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At present, the majority of high-end products in China are based on magnetron sputtering metal films. The metal film has good insulation performance, especially the multi-layer film system structure produced by magnetron sputtering technology has reached the pinnacle in the field of insulation.
However, metal films have always had congenital defects, such as easy oxidation, shielding of ETC, GPS signals, and high reflection. Although ordinary single-layer metal films are relatively cheap, their insulation performance is average, and the effect of reflecting heat is not as good as people imagine. More importantly, insulation is achieved by blocking heat energy
The metal film with a multi-layer film system structure has good performance because it reflects heat energy by sputtering silver, a metal that is very easy to oxidize. Although the insulation performance has improved, oxidation has become the biggest defect; In addition, due to the thicker metal layer than ordinary metal films, the problem of signal shielding is particularly serious, and even has affected the signal of mobile phones; Moreover, the construction difficulty is very high, and metal wires are easily produced due to the complexity of the production process, resulting in very high product prices.
So, although metal films have good performance, they also have various defects, and there are actually more choices in the high-end film field.
The concept of flat ceramic film: It was first introduced by a brand of a Singaporean company. Objectively speaking, the comprehensive performance of this product is very good. However, due to Singaporeans operating in the Chinese market and not understanding the Chinese market, the brand has always been lukewarm and unpopular, missing the golden period of rapid development.
Ceramic is a general term for substances such as oxygen nitrides. Traditional ceramics are composed of substances such as silicon dioxide. The ceramic substances used on explosion-proof membranes include indium tin oxide, titanium nitride, etc. These substances have a selective filtering function on the solar spectrum, far superior insulation performance to metals, lower reflection, excellent stability, and will not shield signals after removing metal characteristics Amber borrowed the concept of ceramics and introduced ceramic membranes. In fact, there are many substances in nature, including ceramic-like substances, which also have selective filtering function on the solar spectrum. Synthetic ceramics use titanium nitride artificially synthesized through magnetron sputtering machine (i.e. titanium metal nitridation reaction to form titanium nitride). In terms of overall performance, the perfection of ceramic membranes is much higher than that of metal membranes.
Because the ceramic film insulation method is mainly based on barrier, many use organic IR explosion-proof films to impersonate ceramic films for promotion. In fact, these are two types of products, and organic IR is very easy to decompose. The insulation function decays in a short time, while true ceramic theory is forever unchanged. Its stability is unmatched by metal films.
The thermal insulation performance of ceramic films has not been recognized by everyone. In addition to poor promotion, some metal film brands use products with reflective functions to conduct reflection tests and inform consumers that only reflective film insulation is sustainable to attack ceramic films, which is also the reason why ceramic films are very damaged. To remove this lie is actually very simple, and it can be seen from trying it out that most metal films have very average reflection performance, The effect is similar to that of ceramic film.
Moreover, there is a certain relationship between the insulation performance of the insulation film and its reflection and non reflection, but it is not an absolute relationship. An A4 white paper does not reflect infrared rays, but it may be more insulation than a top tier film worth several thousand yuan. You can try it out in the sun. Metal films with multilayer film structures of some brands have spectral selection functions, but ceramic films also have the same function. Especially the ceramic film of indium tin oxide has higher transmittance in visible light and stronger barrier in near-infrared. The only difference is that it has less reflection on infrared, but the heat generated by the barrier can be carried away by flowing wind. Therefore, the performance of ceramic films is similar to that of the most expensive top-level metal films, but it eliminates oxidation Blocking signals and other troubles.
In summary, as automotive glass film, metal film and non-metallic ceramic film have their own advantages and disadvantages, and users can choose according to their own requirements and preferences.
The ordinary high-end metal film and non-metallic production processes have become very mature, and the products are also very popular. With the development of technology, new technology products are also constantly emerging. In the field of membranes, in addition to the functions of heat insulation, UV insulation, and explosion-proof, some new brand products have added more functions, such as anti fog, intelligent photosensitive color change... I believe that with the continuous improvement of technology, more new products will appear in front of us.
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