High-hardness, wear-resistant and heat-resistant material for cell phone cases
A technology of heat-resistant materials and mobile phone shells, applied in the field of mobile phone shell materials, can solve the problems that the hardness, wear resistance and heat resistance of mobile phone shells cannot meet the needs of actual production, achieve excellent wear resistance and heat resistance, and improve Effect of heat resistance and overall performance improvement
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Embodiment 1
[0016] The present invention proposes a high-hardness wear-resistant and heat-resistant material for a mobile phone casing. Its raw materials include, by weight, 100 parts of modified EPDM rubber, 40 parts of styrene-butadiene rubber, 40 parts of epoxy resin, and coumarone resin. 40 parts, 35 parts of polyvinyl chloride, 10 parts of wollastonite, 5 parts of nano-calcium carbonate, 3 parts of magnesium carbonate, 4.5 parts of trioctyl trimellitate, 2,6-di-tert-butyl-4-methylphenol 6 parts, 5.5 parts of dicumyl peroxide, 3.5 parts of phthalic anhydride, 4 parts of anti-stress cracking agent, 4 parts of lubricant, 3 parts of flame retardant, 4 parts of foaming agent, and 3.5 parts of toughening agent.
[0017] The modified EPDM rubber is prepared according to the following process: 20 parts by weight of phenolic resin, 20 parts of absolute ethanol and 5.5 parts of carbon nanotubes are evenly mixed, the temperature is raised to 85 °C, and the temperature is kept for 2 hours. Stir ...
Embodiment 2
[0019] The invention proposes a high-hardness, wear-resistant and heat-resistant material for a mobile phone casing. Its raw materials include, by weight, 80 parts of modified EPDM rubber, 50 parts of styrene-butadiene rubber, 30 parts of epoxy resin, and coumarone resin. 50 parts, 20 parts of polycarbonate, 5 parts of wollastonite, 8 parts of nano-calcium carbonate, 1 part of magnesium carbonate, 6 parts of trioctyl trimellitate, 2,6-di-tert-butyl-4-methylphenol 4 parts, 9 parts of dicumyl peroxide, 3 parts of phthalic anhydride, 6 parts of anti-stress cracking agent, 2 parts of lubricant, 5 parts of flame retardant, 2 parts of foaming agent, and 5 parts of toughening agent.
[0020] The modified EPDM rubber is prepared according to the following process: 15 parts by weight of phenolic resin, 25 parts of absolute ethanol and 3 parts of carbon nanotubes are evenly mixed, the temperature is raised to 90 °C, and the temperature is kept for 1 hour. Stir and cool to room temperatu...
Embodiment 3
[0022] The invention proposes a high-hardness, wear-resistant and heat-resistant material for a mobile phone casing. Its raw materials include, by weight, 120 parts of modified EPDM rubber, 30 parts of styrene-butadiene rubber, 50 parts of epoxy resin, and coumarone resin. 30 parts, 50 parts of polycarbonate, 15 parts of wollastonite, 2 parts of nano-calcium carbonate, 5 parts of magnesium carbonate, 3 parts of trioctyl trimellitate, 2,6-di-tert-butyl-4-methylphenol 8 parts, 2 parts of dicumyl peroxide, 4 parts of phthalic anhydride, 2 parts of anti-stress cracking agent, 6 parts of lubricant, 1 part of flame retardant, 6 parts of foaming agent, and 2 parts of toughening agent.
[0023]The modified EPDM rubber is prepared according to the following process: 25 parts by weight of phenolic resin, 15 parts of absolute ethanol and 8 parts of carbon nanotubes are evenly mixed, the temperature is raised to 80 ° C, and the temperature is kept for 3 hours. Stir and cool to room temper...
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