| Feature: | Mold Injection |
|---|---|
| CAS No.: | 9003-56-9 |
| Formula: | (C8h8.C4h6.C3h3n)X |
|
Still deciding? Get samples of US$ 2.5/kg
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Polymethyl methacrylate is often used as a substitute for glass, and the properties of the substance are as follows: physical properties 1. The density of PMMA is lower than that of glass: the density of PMMA is about 1.15-1.19g/cm3, which is half of glass (2.40-2.80g/cm3) and 43% of metal aluminum (belongs to light metal). 2. The mechanical strength of PMMA is relatively high: the relative molecular mass of PMMA is about 2 million, it is a long-chain polymer, and the chain forming the molecule is very soft. Therefore, the strength of PMMA is relatively high, and it is resistant to stretching and impact. Its capacity is 7 to 18 times higher than that of ordinary glass. There is a kind of plexiglass that has been heated and stretched, in which the molecular segments are arranged in a very orderly manner, so that the toughness of the material is significantly improved. The plexiglass is driven with a nail, and even if the nail penetrates, it will not crack. This kind of plexiglass is also not broken into pieces after being penetrated by a bullet. Therefore, stretch-treated PMMA can be used as bulletproof glass and also as canopy on military aircraft. 3. The melting point of PMMA is lower, which is much lower than the high temperature of glass of about 1000 degrees. 4. The transmittance of PMMA is higher (1) Visible light: PMMA is the best polymer transparent material at present, with a light transmittance of 92%, which is higher than that of glass. (2) Ultraviolet light: Quartz can completely transmit ultraviolet rays, but the price is high, and ordinary glass can only transmit 0.6% of ultraviolet rays. PMMA can effectively filter out ultraviolet light with a wavelength less than 300nm, but the filtering effect between 300nm and 400nm is poor. Some manufacturers coat the surface of PMMA to increase its ability to filter out 300nm to 400nm UV light. On the other hand, PMMA has better stability than polycarbonate when exposed to UV light (3) Infrared: PMMA allows infrared (IR) with a wavelength of less than 2800nm to pass. Longer wavelengths of IR, less than 25,000 nm, can be substantially blocked. There are special colored PMMAs that allow specific wavelengths of IR to pass through while blocking visible light (for remote control or thermal sensing, etc.). (4) The glass transition temperature of PMMA is about 105°C. Its molding methods include casting, injection molding, machining, thermoforming, etc. In particular, injection molding can be mass-produced, with simple process and low cost. Therefore, its application is becoming more and more extensive, and it is widely used in instrumentation parts,automobile lights, optical lenses, and transparent pipes.
| 1.Packing: | 25kg/ carton or 25kg/bag, or per your requirement; 20mt/20'FCL |
| 2.Storage: | The resin should be stored in a drafty, dry warehouse and away from fire and direct sunlight. It should not be piled up in the open air. |
| 3.Transportation: | During transportation, the product should not be exposed to strong sunlight or rain and should not be transported together with sand, soil, scrap metal, coal or glass. Transportation together with toxic, corrosive and flammable substance is strictly prohibited. |
Our company, Tianjin Boda Import & Export Co., Ltd. is located in Tianjin, China. With the development of both domestic and foreign trade business, we can now provide diversified services to the whole world. Our products include ABS, EVA, POE, EBA, PET, PP, PVC, PA etc. The products are mainly used in industries such as auto parts, household appliances, electronic appliances, and power tools. Our target is to provide customers with high quality and one-stop services. Our vision is to make plastic easier for everyone to use. So far, we have customers in over 30 countries, and most of them are from Europe and the United States. The quality of our products is always the best among Chinese suppliers, this is the key reason for customers to choose us.
1.Are you trading company or manufacturer?
){kind=link}