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PTFE

Polyphenylene oxide -PPO sheet and rebar

writer : polymer shemsh azadi 2022-09-26 13:25:39 462 view comment
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Lightest Engineering Plastic
Polyphenylene Oxide-PPO

Matt Black PPO Rebar has good strength and meets the American Society for Testing and Materials ASTM D4349 PPE220 specification. PPO (Polyphenylene Oxide) is a high-strength plastic that offers excellent dimensional stability and dielectric strength, good creep resistance, and low moisture absorption even in hot and humid environments.

Plastics are a group of synthetic or semi-synthetic materials that have been engineered to achieve specific properties. The most prominent characteristics of plastics are their low weight, machinability, corrosion resistance, and usually good thermal and electrical insulation properties. Certain plastic grades also offer glass-like optical clarity, low-friction or self-lubricating surfaces, and exceptional impact resistance. Depending on their properties, certain plastic grades can be used as alternatives to metal, glass, and ceramics. Unlike metal, plastics may experience creep, which is the deformation caused by prolonged exposure to a constant load.

Tensile strength, used to indicate the overall strength of a material, is the maximum stress it can withstand before breaking. Corrosion resistance describes the ability of a material to resist deterioration caused by the atmosphere, moisture, or other media. Abrasion resistance describes the ability to prevent surface damage from contact with other surfaces. Toughness describes the ability of a material to absorb energy before breaking, while hardness (usually measured as indentation hardness) describes its resistance to permanent surface deformation. Impact resistance is a measure of a material's ability to absorb shock energy before breaking. High temperature resistance of about 135-189 ° C
Applications of polyphenylene oxide:

Manufacture of washing machine parts, pipes and fittings, pumps, valves, and shower heads

PPO has high resistance in all fields and has specific applications in various industries, for example, in the automotive industry for the production of dashboards, grilles, and wheel covers.

These applications based on resistance include:

Water resistant: Production of surgical instruments that require steam sterilization and are an alternative to stainless steel
Chemical resistant: Pumps, production and manufacture of pipes and fittings, shower heads, valves and washing machines
Impact resistant and has dielectric properties: Manufacturing of calculators, industrial machines, TV cabinets, computer frames, electrical components
If PPO is alloyed with polystyrene, its chemical properties increase.

Disadvantages of polyphenylene oxide:

Despite the unique properties of polyphenylene oxide, it also has disadvantages, which you can read below:

High price
Intolerance of temperatures higher than 189 degrees Celsius
In the case of molding operations, the mold must be hot
Poor resistance to aromatic solvents and acids, strong oxidizers and chlorine
Lack of proper spark resistance

If you want to work up to 100 degrees, you can use black polyamide.

PPO is an alloy of PPO and styrene. Due to its inherent chemical composition, PPO exhibits very low moisture absorption and offers excellent insulation properties and dimensional stability over a wide range of humidity and temperature. PPO also has excellent impact strength, is lightweight, and is hydrolytically stable. PPO can operate continuously at temperatures in excess of 220°F.

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