Thermoplastic elastomer foamed material and preparation method thereof
A thermoplastic elastomer and foaming material technology, applied in the field of thermoplastic elastomer foaming material and its preparation, can solve the problems of large specific gravity, no oxygen absorption function, poor surface scratch resistance, etc., and achieve small specific gravity and compression resistance Excellent, scratch-resistant surface effect
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Embodiment 1
[0022] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:
[0023] (1) By weight, the following raw materials are equipped: 40 parts of thermoplastic elastomers (including 34 parts of styrene-based thermoplastic elastomers, 6 parts of polyolefin thermoplastic elastomers, and the styrene content of styrene-based thermoplastic elastomers is 32% ( Weight), molecular weight is 240,000, molecular structure is linear structure), plasticizer 40 parts (both naphthenic oil), polypropylene 20 parts, polyethylene 15 parts, ethylene propylene rubber 8 parts, lubricant 2 parts ( Both are zinc stearate), 8 parts of foam masterbatch, 0.6 parts of oxygen absorber (both are sodium sulfite);
[0024] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i.e. blowing agent AC), low-density polyethylene (LDPE), talcum powder and polyolefin thermoplastic elastomer, azodicarbonamide, low-density...
Embodiment 2
[0030] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:
[0031] (1) By weight, the following raw materials are equipped: 30 parts of thermoplastic elastomers (all are styrene-based thermoplastic elastomers, the styrene content is 35% (weight), the molecular weight is 250,000, and the molecular structure is a linear structure) , 45 parts of plasticizer (both are white mineral oil), 25 parts of polypropylene, 10 parts of polyethylene, 10 parts of ethylene-propylene rubber, 0.5 parts of lubricant (both are polymer silicone), 8 parts of foam masterbatch, 0.1 parts of oxygen absorbing agent (both are sodium thiosulfate);
[0032] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i.e. blowing agent AC), low-density polyethylene (LDPE), talcum powder and polyolefin thermoplastic elastomer, azodicarbonamide, low-density polyethylene, talc powder The weight ratio of polyolef...
Embodiment 3
[0038] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:
[0039] (1) Prepare the following raw materials by weight: 50 parts of thermoplastic elastomers (including 45 parts of styrene-based thermoplastic elastomers, 5 parts of polyolefin thermoplastic elastomers, and the styrene content of styrene-based thermoplastic elastomers is 30% ( Weight), molecular weight is 200,000, molecular structure is linear structure), plasticizer 30 parts (including naphthenic oil 15 parts, white mineral oil 15 parts), polypropylene 15 parts, polyethylene 20 parts, ethylene propylene rubber 5 parts 1.6 parts of lubricant (including 1.4 parts of zinc stearate and 0.2 parts of polymer silicone), 10 parts of foam masterbatch, 1 part of oxygen absorber (including 0.5 parts of potassium sulfite and 0.5 parts of sodium bisulfite) ;
[0040] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i....
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