[Industry Reports]：What are the characteristics of PMMA, PC, PS and PP diaphragm and what industry are they used in?

PMMA film

characteristics

. PMMA film is also known as polymethyl methacrylate film. It is non-toxic and environmentally friendly, and has good chemical stability and weather resistance. Good comprehensive mechanical properties, in the forefront of general plastics, and PMMA resin is not easy to produce sharp fragments when broken. The United States, Japan and other countries and regions have made mandatory provisions in the law, primary and secondary schools and kindergarten building glass must use PMMA resin. Operating temperature of
:-30~80 ℃
thickness: 0.5mm-8mm
surface effect: smooth surface, sand surface, brushed surface

scope of

PMMA film has a very wide range of applications, and has been widely used in the automotive industry (signal lamp equipment, instrument panel, etc.), pharmaceutical industry (blood storage containers, etc.), industrial applications (video discs, light diffusers), electronic products Key buttons (especially transparent), consumer goods (beverage cups, stationery, etc.), etc. At the same time, due to its excellent optical properties, the penetration of white light is as high as 92%. PMMA products have very low birefringence and are especially suitable for making DVDs and advanced optical lenses.

PS film

. PS film is also called polystyrene film. It has high transparency and gloss, beautiful appearance, good printing performance and excellent metal evaporation. Low water absorption and high transmission rate to gas and water vapor. PS films are divided into unstretched films and biaxially stretched films. The unstretched PS film is hard and brittle, and has little use value; the biaxially stretched BOPS film has significantly improved its physical and mechanical properties, and still maintains the original transparency and gloss. Operating temperature of
:-40~95 ℃,
thickness: 0.1mm-1mm

Application Scope

PS film is mainly used for thermoforming various cups, plates, dishes, fast food boxes, medicines and other packaging products, and is also commonly used for carton packaging windows and light food packaging, etc. In addition, when attached to metal foil, it can be used for insulation and EMI/FRI shielding. For example, PC light diffusion film has antistatic effect and good weather resistance, and is especially suitable for LCD backlight module.

PC film

characteristics

PC film is an amorphous, odorless, non-toxic, highly transparent colorless or yellowish thermoplastic engineering plastic with excellent physical and mechanical properties, especially excellent impact resistance, tensile strength, bending strength, high compression strength, low creep resistance, and dimensional stability; It has good heat resistance and low temperature resistance, it has stable mechanical properties, dimensional stability, electrical properties and flame retardancy over a wide temperature range. Operating temperature of
:-30~120 ℃,
thickness: 0.07~1.0mm,
surface effect: smooth surface, sand surface, brushed surface

flame retardant PC film is widely used in electronic components, electrical housings, switch panels, junction boxes and charger housings, automotive instruments and meters and panel printing with flame retardant requirements. Printing grade frosted PC film is suitable for special printing, helmets, signs, nameplates, protective covers, etc. Anti-scratch PC film is applied to mobile phones, MP3, MP4, DVD, backlight and other electronic products window lenses.

PP films are divided into unstretched films and biaxially stretched films. Unstretched polypropylene films include blown polypropylene films (IPP) produced by extrusion blow molding and extruded cast polypropylene (CPP) produced by T mold. Biaxially oriented polypropylene film (BOPP) is a new type of film developed instead of cellophane. It has the characteristics of high mechanical strength, good toughness, good transparency and gloss. Operating temperature of
:-15~55 ℃
thickness: 0.05mm -0.35mm
surface effect: excellent gloss and transparency

PP film is used in all aspects of daily life due to its excellent characteristics, including heat-sealing film for printing and composite bag making; paper-plastic composite ultra-thin high extinction film for book books, advertisement books, gift bags, etc.; back-coated silicone oil release film for protection of plasters, labels, silent adhesive tapes and other adhesive products; used for fishing rods, golf clubs and other industrial products winding molding isolation protection film; directly used for food heat-sealing bag packaging heat-sealable aluminized film; used for high transparent adhesive tape production, paper products composite high transparent film and so on.

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