Mainly analyze and compare PC and PMMA material lenses from the following aspects:
1. Physical properties: PC has better toughness and impact strength than PMMA, which is a brittle material.
2. Temperature resistance: PC has better temperature resistance than PMMA. PC TG reaches 120°, while PMMA only has 85°.
3. Wear resistance: PC has better wear resistance than PMMA, but its surface scratch resistance is much lower than PMMA. Therefore, scratch-resistant high-gloss ABS material is added to PMMA for alloy modification.
4. Fire degree: PC has better fire resistance than PMMA, that is, it has good flame retardancy. Ordinary PC can shoot V2.
5. Light transmittance: The light transmittance of PMMA is much better than that of PC. The light transmittance of PMMA reaches 92 ~ 93%, so it is a better transparent material than PC material, so it is often used in multi-light guide plates and medical applications. Device, PC is only 86 ~ 89%.
6. Weather resistance: PMMA has excellent weather resistance and is often used as outdoor products. PCS is used as outdoor products and can add ultraviolet agents and antioxidants.
Yuying Fresnel lenses are mainly made of PC and PMMA materials. Focus on the production and research and development of Fresnel lenses. We provide Fresnel lenses for different purposes to thousands of customers (Siemens, Midea, Panasonic, Hikvision, etc.).
1. PC plastic: PC plastic raw material is commonly known as polycarbonate. The English name of polycarbonate is polycarbonate, or PC for short. It is a type of molecular chain containing polymer compounds with a carbonate structure, and its production is commonly used in various industries. Material expiration date. According to the molecular structure of the ester group, it can be divided into several main categories such as aliphatic, alicyclic, aromatic and aliphatic aromatic. While bisphenol A polycarbonate is important, the molecular weight is usually 3.1 million. Unless otherwise specified, what is commonly referred to as polycarbonate is bisphenol A polycarbonate and its modified varieties. Due to its excellent mechanical properties, it is commonly known as bulletproof glue.
2. PC plastic applications: glass assembly industry, automotive industry and electronics and electrical appliances industry, followed by industrial machinery parts, optical discs, packaging, computers and other office equipment, medical care, movies, leisure and protective equipment.
3. PMMA plastic: Polymethyl methacrylate (polymethyl methacrylate, also known as acrylic or plexiglass), also known as Agali glue in Hong Kong, has the advantages of high transparency, low price, and easy processing. It is a Glass replacement materials are commonly used. The polymethyl methacrylate monomer is methyl methacrylate (MMA, an acrylic monomer). Excellent transparency, excellent aging resistance; its ratio is less than half that of ordinary glass, but its ability to resist shattering is several times higher. It has good insulation and mechanical strength, and is resistant to acids, alkalis, and salts. It is corrosive and easy to process. It can be bonded, sawed, flattened, drilled, carved, grinded, screen printed, sandblasted and other manual mechanical processing. After heating, the pressure mold can be bent into various acrylic products.
4. PMMA plastic applications: automotive industry (signal equipment, instrument panels, etc.), pharmaceutical industry (blood storage containers, etc.), industrial applications (lighting industrial lenses, DVDs, light scattering, projectors, etc.), electronic product keys (especially transparent) . Consumer goods (drink cups, stationery, etc.).
