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What do acrylic and P.S materials mean respectively? What's the difference between them?
I'm not sure about the details, because I'm not a major in this field either. I came into contact some time ago.

Acrylic is acrylic plastic.

PS is polystyrene.

Because we made a ruler some time ago, acrylic can also be translated into acrylic. Rulers made of this material are mainly used for promotion and small gifts.

Polystyrene (PS) includes ordinary polystyrene (GPPS), polystyrene, expandable polystyrene (EPS), high impact polystyrene (HIPS) and syndiotactic polystyrene (SPS). Polystyrene (PS) is a colorless and transparent thermoplastic. The general formula is [(CH2CHC6H5)n]. Its glass transition temperature is higher than 100 degrees Celsius, so it is often used to make various disposable containers that need to withstand the temperature of boiling water, namely disposable foam lunch boxes. Polystyrene is hard and brittle, colorless and transparent, and can be mixed with many dyes to produce different colors. Polystyrene is often used to make foamed plastic products. Polystyrene can also be polymerized with other rubber polymer materials to produce products with different mechanical properties. Common applications in daily life include various disposable plastic tableware and transparent CD boxes.

Acrylic acid is mainly used to produce acrylate (resin) in industry, accounting for about 60% of the total consumption of acrylic acid. It is used in construction, papermaking, leather, textile, plastic processing, packaging materials, daily chemicals, water treatment, oil production, metallurgy and other fields. Acrylic acid plays a very important role in the field of fine chemicals. Polypropylene and acrylic polymers produced from acrylic acid are used as dispersants, flocculants and thickeners. By the end of 1970s, polypropylene and acrylic polymer were used as super absorbent resin and detergent additives. Acrylic resin in a broad sense is the general name of homopolymer and polymer of (meth) acrylic acid and its derivatives. Homopolymers include: poly (meth) acrylic acid and its salts, polymethyl methacrylate, butyl ester, polyacrylamide, polyacrylonitrile, etc. According to different uses, more * * * polymers can be obtained by selecting different monomers and polymerizing them in different proportions. In a narrow sense, acrylic resin mainly refers to polymethacrylic acid and its salts. It is a polyelectrolyte, and its properties are affected by PH value. Different forms of resins, such as solid, solution and latex, can be obtained by different polymerization methods. Suitable for various purposes. Most acrylic fibers are used to process textiles, such as clothing, decorative products, artificial fur and so on. However, there is little consumption in industries and other fields. At present, the demand of cotton acrylic fiber accounts for about 29% of the total, which is mainly used to produce textile yarns and fabrics; Wool fiber is mostly used for processing wool, wool-like carpet, artificial fur and so on. Acrylic acid added to marble powder (calcium carbonate powder) is white paint.

Acrylic acid is toxic ~ ~ ~ it should not be the material you are looking for.

I hope I can help you.