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  2. Graft polymer - Wikipedia

    en.wikipedia.org/wiki/Graft_polymer

    CD case made from general purpose polystyrene (GPPS) and high impact polystyrene in the black portion (HIPS) High impact polystyrene (HIPS) was discovered by Charles F. Fryling in 1961. [ 19 ] HIPS is a low cost, plastic material that is easy to fabricate and often used for low strength structural applications when impact resistance ...

  3. Vacuum forming - Wikipedia

    en.wikipedia.org/wiki/Vacuum_forming

    A simple visualization of the forming process Vacuum forming machine to produce inner liner/food liner of refrigerator. Vacuum forming is a simplified version of thermoforming, where a sheet of plastic in various forms of High Impact Polystyrene Sheet (HIPS) for low impact products, or ABS for bathroom shower trays, and HDPE for exterior vehicle parts, plus various other types of vacuum ...

  4. Step-growth polymerization - Wikipedia

    en.wikipedia.org/wiki/Step-growth_polymerization

    Many naturally-occurring and some synthetic polymers are produced by step-growth polymerization, e.g. polyesters, polyamides, polyurethanes, etc. Due to the nature of the polymerization mechanism, a high extent of reaction is required to achieve high molecular weight. The easiest way to visualize the mechanism of a step-growth polymerization is ...

  5. Polystyrene - Wikipedia

    en.wikipedia.org/wiki/Polystyrene

    This is often used in packaging where the manufacturer would like the consumer to see the enclosed product. Some benefits to OPS are that it is less expensive to produce than other clear plastics such as polypropylene (PP), (PET), and high-impact polystyrene (HIPS), and it is less hazy than HIPS or PP. The main disadvantage of OPS is that it is ...

  6. Thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic

    Polypropylene sheets are used for stationery folders and packaging and clear storage bins. Polypropylene is defined by the recyclable plastic number 5. Although relatively inert, it is vulnerable to ultraviolet radiation and can degrade considerably in direct sunlight. Polypropylene is not as impact-resistant as the polyethylenes (HDPE, LDPE).

  7. High impact polystyrene - Wikipedia

    en.wikipedia.org/?title=High_impact_polystyrene&...

    High impact polystyrene. Add languages. Add links. Article; ... Download QR code; Print/export Download as PDF; Printable version; In other projects Appearance.

  8. High-impact polystyrene - Wikipedia

    en.wikipedia.org/?title=High-impact_polystyrene&...

    Polystyrene#Co-polymers To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .

  9. List of waste management acronyms - Wikipedia

    en.wikipedia.org/wiki/List_of_waste_management...

    Download as PDF; Printable version; ... EPRN Electronic Packaging Waste Recovery Notes; EPS Expanded Polystyrene; ... HIPS High Impact Polystyrene; HLW High Level Waste;