Regenerated polyethylene material with excellent aging resistance and processing technology thereof
A recycled polyethylene and anti-aging technology, which is applied in plastic recycling, reagents, educts, etc., can solve the problems of reducing the aging resistance of recycled plastics and limiting the production of plastic products, so as to improve the bonding strength, aging resistance and mechanical properties Effect
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Embodiment 1
[0017] Grind the recycled polyethylene plastic into flake particles of 0.5-2cm. After sieving and dedusting, wash with water, and then immerse in alkaline treatment solution for 3 hours. The treatment solution contains 100kg of water, 1kg of sodium hydroxide, and 20kg of ethyl acetate. Then take it out, wash it with water until it is neutral, dry it, and mix it evenly with the treatment agent diketene at a weight ratio of 10:0.1, and then cross-link it through electron beam irradiation to obtain recycled polyethylene material.
[0018] Weigh 80kg of recycled polyethylene material, 10kg of low-density polyethylene with a melt index of 3g / min, crosslinking agent NQ-1773kg, and mix 5kg of sebacic acid dihydrazide and 2kg of 1,3-cyclopentene diisocyanate 2kg of anti-aging agent, then add recycled polyethylene material and low-density polyethylene into an anaerobic internal mixer at 125°C for 5 minutes, then add anti-aging agent and cross-linking agent, while maintaining anaerobic i...
Embodiment 2
[0020] Grind the recycled polyethylene plastic into flake particles of 0.5-2cm. After sieving and dedusting, wash with water, and then immerse in alkaline treatment solution for 8 hours. The treatment solution contains 100kg of water, 3kg of sodium hydroxide, and 30kg of ethyl acetate. Then take it out, wash it with water until it is neutral, dry it, mix it evenly with the treatment agent diketene in a weight ratio of 10:0.2, and get the recycled polyethylene material after being cross-linked by electron beam irradiation.
[0021] Weigh 90kg of recycled polyethylene material, 25kg of low-density polyethylene with a melt index of 6g / min, crosslinking agent NQ-1775kg, and mix 8kg of sebacic acid dihydrazide and 6kg of 1,3-cyclopentene diisocyanate 6kg of anti-aging agent, then add recycled polyethylene material and low-density polyethylene to an anaerobic internal mixer at 140°C for 10 minutes, then add anti-aging agent and cross-linking agent, while maintaining oxygen-free inter...
Embodiment 3
[0023] Grind the recycled polyethylene plastic into flake particles of 0.5-2cm. After sieving and dedusting, wash with water, and then immerse in alkaline treatment solution for 5 hours. The treatment solution contains 100kg of water, 2kg of sodium hydroxide, and 26kg of ethyl acetate. Then take it out, wash it with water until it is neutral, dry it, and mix it evenly with the treatment agent diketene in a weight ratio of 10:0.14, and get the recycled polyethylene material after being cross-linked by electron beam irradiation.
[0024] Weigh 85kg of recycled polyethylene material, 18kg of low-density polyethylene with a melt index of 5g / min, crosslinking agent NQ-1774kg, and mix 6kg of sebacic acid dihydrazide and 4kg of 1,3-cyclopentene diisocyanate 3kg of anti-aging agent, then add recycled polyethylene material and low-density polyethylene into an anaerobic internal mixer at 135°C for 6 minutes, then add anti-aging agent and cross-linking agent, while maintaining anaerobic i...
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