shower door glass is also identified as basic safety glass. As the identify implies, laminated glass is composed of multiple layers of glass. Besides for the glass, the interlayer in the middle of the glass. Normally there are a few sorts of interlayers: EVA, PVB, SGP.
PVB
PVB is a widely employed sandwich material for architectural glass and automotive glass.
The storage approach and processing approach of PVB interlayer is far more difficult than EVA, and the requirements for temperature and humidity are high. When PVB is processed, the temperature is managed amongst 18 °C and 23 °C, the relative humidity is managed at eighteen-23%, and the PVB water content is taken care of at .4%-.six%. Soon after preheating rolling or vacuuming, The autoclave was utilized for warmth preservation and strain retaining, the autoclave temperature was 120-a hundred thirty ° C, the strain was one.-one.3 MPa, and the time was thirty-sixty min. PVB comprehensive sets of creation products demands about 1 million money, which is challenging for modest firms. A couple of many years back, it was mostly produced by DuPont, Solutia, and Sekisui. The China PVB was mostly recycled resources for secondary processing, but the high quality balance was not extremely good. In recent a long time, China PVB companies are also getting wonderful growth.
PVB has good security, sound insulation, transparency and UV resistance, but PVB has bad water resistance, and it is simple to delaminated when it is in a humid surroundings for a extended time.
EVA
EVA ‘s cost performance is greater. In contrast with PVB and SGP, EVA has better fluidity, reduce melting temperature and can be processed at temperatures up to one hundred ten °C.
EVA has a excellent fluidity of the movie layer, and can be subjected to a procedure such as wire drawing and engraving in the movie layer to create a beautiful decorative glass with a sample and a pattern. EVA has very good water resistance, but its UV resistance is weak. It is easy to yellow and black in lengthy-expression solar publicity, so it is mainly employed for indoor partitions
SGP
SGP is called the ionic interlayer film (SentryGlas In addition), which is a substantial-efficiency interlayer designed by DuPont. Its large efficiency is:
one. Exceptional mechanical homes and substantial energy. At the exact same thickness, the SGP interlayer bearing capability is 2 times that of PVB underneath the very same load and thickness, the bending deflection of SGP laminated glass is one quarter of PVB
two, tear power. At the identical thickness, the PVB interlayer movie has a tear toughness of 5 occasions that of PVB, and can be bonded to the glass in the scenario of tearing without triggering the total glass to tumble.
3, powerful stability, dampness resistance. SGP laminated glass is colorless and clear, anti-ultraviolet. Soon after long-time period solar and rain, it is not effortless to switch yellow, and the yellowing coefficient is considerably less than 1.5. Nevertheless, the yellowing coefficient of PVB interlayer movie is 6twelve12. For that reason, SGP is the darling of extremely-white laminated glass.
Despite the fact that the generation procedure of SGP is close to PVB, the terminal price tag is large.
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Morn is your turnkey architectural China glass provider,PVB laminated glass for glass curtain wall,and SGP laminated glass employed for structural glazing are equally available.Welcome get in touch with us for a lot more details.
Relevant:
Distinction amongst PVB,SGP,EVA interlayer
PVB laminated glass VS SGP laminated glass
What is Dupont SGP interlayer?
Specs of Supont SGP interlayer?
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