Акриловые гранулы ПММА полиметилметакрилат для
- Категория: PMMA >>>
- Поставщик: Julier (xiamen) Technology Co. Ltd.
Сохранить в закладки 1600709646205:
Описание и отзывы
Характеристики
Products Description
Product Name | Polymethyl methacrylate PMMA | ||||||
Advantages | Free sample On-time deliveryEnvironment friendly Can be reinforced with the glass fiber/toughness/flame retardant/UV stabilized Competitive price High quality | ||||||
About Inquiry | In order to give you a satisfactory quotation as soon as possible and to find materials that are perfectly suited to your products please tell us the details: 1.Virgin or recycled 2. Any additives, such as uv-stablized, light diffusion, flame retardant, etc. 3. Injection or extrusion 4. To make what product 5. Color | ||||||
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.
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.
Product packaging
Certifications
FAQ
1. About Factory
It is closed to Xiamen port.
2. About Sample
FREE SAMPLE
3. About Material
We can customize the material performance according to customers’ requirement.
4. About Color
We can match the material color according to color card PANTONES or RAL.
If you don't know color card number, you can send us product.
5. About Process Method
Full technical/process support.
6. About Delivery Period
About 7 working days for 10tons, 10 working days for 18-20 tons.
3. About Material
We can customize the material performance according to customers’ requirement.
4. About Color
We can match the material color according to color card PANTONES or RAL.
If you don't know color card number, you can send us product.
5. About Process Method
Full technical/process support.
6. About Delivery Period
About 7 working days for 10tons, 10 working days for 18-20 tons.
7. About Payment Term
It’s flexible, TT, L/C at sight, PAYPAL, BANK, Alibaba’s Trade Assurance, etc.
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