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       #Post#: 27--------------------------------------------------
       PE sheet has excellent resistance to most of the industrial chem
       icals
       By: INTCOrecycling Date: March 4, 2018, 7:09 pm
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       Certain types of chemicals can produce chemical corrosion, such
       as corrosive oxidants (concentrated nitric acid), aromatic
       hydrocarbons (xylene) and halogenated hydrocarbons (carbon
       tetrachloride). The polymer is non-hygroscopic and has good
       water vapor resistance and can be used for packaging
       applications. HDPE has good electrical properties, especially
       high dielectric strength, making it suitable for wire and cable.
       Medium to high molecular weight grades with excellent impact
       resistance, at room temperature even at -40 ° C low temperature
       are so, the unique characteristics of various grades of HDPE is
       the appropriate combination of four basic variables: density,
       molecular weight, molecular weight distribution and additives
       The Different catalysts are used to produce custom specialty
       polymers. These variables combine to produce different grades of
       HDPE grades; achieve the best balance in performance. Has good
       chemical stability, can resist most of the acid, alkali, organic
       solution and hot water erosion. Good electrical insulation.
       Polyethylene sheet (HDPE board) melting point of about 130
       ℃, the relative density of 0.941 ~ 0.960. It has good heat
       resistance and cold resistance, chemical stability, but also has
       a high rigidity and toughness, good mechanical strength.
       Dielectric properties, resistance to environmental stress
       cracking is also better. Melting temperature of 220 ~ 260C. For
       larger materials, the proposed melting temperature range between
       200 ~ 250C.
       Polyethylene board odorless, non-toxic, feel like wax, with
       excellent low temperature performance (minimum temperature up to
       -70 ~ -100 ℃), chemical stability, and resistance to the
       majority of acid and alkali erosion (intolerance with oxidation
       Nature of the acid), at room temperature insoluble in the
       general solvent, water absorption, electrical insulation
       performance; low density; good toughness (the same applies to
       low temperature conditions); good tensile; electrical and
       dielectric insulation is good; low water absorption; Water vapor
       permeability is low; good chemical stability; tensile; non-toxic
       harmless.
       However, PE sheet is very sensitive to environmental stress
       (chemical and mechanical effects), poor heat aging resistance.
       So, polyethylene sheet recycling is very necessary.
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