Performance Comparison Between Foamed Glass And Rigid Polyurethane Foam

Foam glass

Foam glass

Foam glass uses plate glass as the main raw material, after crushed, carbon-doped, sintered foam and annealing cooling of processing obtained. It has a porous structure, the porosity of up to 80% to 90%; moreover, the pores are independent airtight structure, which has a good thermal insulation property. Foam glass as insulation materials has special advantages: High mechanical strength, itself can play a moisture-proof, fireproof and anticorrosive role; not only used for insulation, but also against the cold. In addition, it has good workability, and can produce colored products. Its use temperature range is -200 to 400 .

According to the different densities of foam glass products, it can be divided into 150 and 180 two varieties of the product, products in which density is less than or equal to 150 kg/cubic meter is No. 150, the product of the density between 151 ~ 180kg/cubic meter is No. 180; according to different shape of products divided into flat and tube.

The foamed glass can be used as the thermal insulation of the building envelope, also applies to the precipitator and cold storage etc. of insulation. It can also be used in the construction noise engineering.

Rigid polyurethane foam

The polyurethane rigid foam is as polyether or polyester polyol and polyisocyanate as main raw materials, plus catalyst, foam stabilizer and chlorofluorocarbon blowing agents and so on, after mixing and stirring to produce a chemical reaction to form foam. Bore of the obturator rate achieves 80% to 90%, a density of 30 ~ 60kg/ cubic meter, small absorbent. The thermal conductivity coefficient is smaller than the air. High strength, a certain amount of self-extinguishing, which used to do the low-temperature range of insulation, the temperature is generally from -100 to 100 C. When applications, it can be prefabricated to plate or shell and tube-like products by prefabricated factory. Because it can be foaming and curing at room temperature, so it can be sprayed in the field or perfusion foam, what is currently the most widely used organic insulation materials.

Its main weakness is: expensive, shortage of raw materials, poor heat resistance and fire resistance, when the oxygen index of the flame-retardant material is less than 30, they lost the use of security.

by: loveboa

POST COMMENT

How To Safely Install And Maintain An Underground Tank Realistic Goals And Reasonable Efforts For Step Moms How T-shirts Can Increase Your Personality And Style Even In Winters. Printing Brisbane Paper Types, Sizes And Weights Online Clothes Shopping Is The Easy And Economical Way To Shop Fashionable Watches To Define Your Attitude And Style Where To Buy Stompeez Slippers, Salon Express And Other Products As Seen On Tv An Overview Of Watches And Its Changing Favorable Dimension Keep Your Home Neat And Spotless With Professional Cleaners The Facial Biometrics Is Unique And Secure Istanbul Accessible Travel Agents And Accessibility Guide For Your Disabled Trip To Istanbul Finding The Best Drug And Alcohol Rehab Centres Near You Hiring A Video Crew For Videotaping And Video Production In Virginia