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2. Twinwall plastic - Wikipedia

   en.wikipedia.org/wiki/Twinwall_plastic

   Twin-wall polycarbonate sheeting is used primarily as an alternative to glass. Weight, flexibility, and impact strength are all benefits of using polycarbonate as a glass substitute. [10] Applications include those in which thermal insulation is necessary while still allowing light transmittance.

3. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   Polycarbonate is commonly used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance. Polycarbonate lenses also protect the eye from UV light.

4. Plastic pipework - Wikipedia

   en.wikipedia.org/wiki/Plastic_pipework

   Plastic Pipe lengths manufactured in Australia by extruding HDPE material.. Plastic pipe is a tubular section, or hollow cylinder, made of plastic.It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases (fluids), slurries, powders and masses of small solids.

5. Izod impact strength test - Wikipedia

   en.wikipedia.org/wiki/Izod_impact_strength_test

   Scheme for the determination of Izod impact strength test results. Impact, by definition, is a large force applied for a very short time, resulting in a sudden transfer of momentum and energy, and its effect is different when the same amount of energy is transferred more gradually. Everyday engineering structures are subjected to it and may ...

6. Plastic weld non-destructive examination - Wikipedia

   en.wikipedia.org/wiki/Plastic_weld_non...

   One area that has driven research on NDE of plastic welds is the use of High-density polyethylene (HDPE) in nuclear power plants. Metal piping has traditionally been used for cooling water piping; however, HDPE offers significant advantages due to its significantly longer service life and its strength to weight ratio. [6]

7. UN plastic talks collapse as countries fail to agree targets

   www.aol.com/news/over-100-countries-back-plastic...

   BUSAN, South Korea (Reuters) -Countries negotiating a global treaty to curb plastic pollution failed to reach agreement on Monday with over 100 nations wanting to cap production while a handful of ...