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40 Acre Minimum Order
Country:
China
Model No:
Hengge
FOB Price:
Place of Origin:
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Price for Minimum Order:
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Minimum Order Quantity:
40 Acre
Packaging Detail:
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Delivery Time:
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Supplying Ability:
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Contact Person Alan
No.B06 Yishun Street, Huangcun, Dongpu Town, Tianhe District,, Guangzhou
Polycarbonate is a very durable material. Although it has high impact-resistance, it has low scratch-resistance and so a hard coating is applied to polycarbonate eyewear lenses and polycarbonate exterior automotive components. The characteristics of polycarbonate are quite like those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is stronger, usable in a wider temperature range but more expensive. This polymer is highly transparent to visible light and has better light transmission characteristics than many kinds of glass.
Polycarbonate has a glass transition temperature of about **0 °C (**2 °F), so it softens gradually above this point and flows above about **0 °C (**2 °F). Tools must be held at high temperatures, generally above *0 °C (**6 °F) to make strain- and stress-free products. Low molecular mass grades are easier to mould than higher grades, but their strength is lower as a result. The toughest grades have the highest molecular mass, but are much more difficult to process.
Unlike most thermoplastics, polycarbonate can undergo large
plastic deformations without cracking or breaking. As a result, it
can be processed and formed at room temperature using sheet metal
techniques, such as forming bends on a brake. Even for sharp angle
bends with a tight radius, no heating is generally necessary. This
makes it valuable in prototyping applications where transparent or
electrically non-conductive parts are needed, which cannot be made
from sheet metal. Note that PMMA/Plexiglas, which is similar in
appearance to polycarbonate, is brittle and cannot be bent at room
temperature.
Country: | China |
Model No: | Hengge |
FOB Price: | Get Latest Price |
Place of Origin: | - |
Price for Minimum Order: | - |
Minimum Order Quantity: | 40 Acre |
Packaging Detail: | - |
Delivery Time: | - |
Supplying Ability: | - |
Payment Type: | - |
Product Group : | - |