TPE material for bonding polyformaldehyde (POM) and preparation method of TPE material
A bonding and raw material technology, applied in the direction of adhesives, wax adhesives, adhesive types, etc., can solve the problems of difficult bonding of POM, strong tensile strength, etc., to achieve enhanced adhesive force, improved tensile strength, Effect of good stability and aging resistance
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[0035] The above-mentioned preparation method for bonding the TPE material of POM, comprises the following steps:
[0036] 1) Mix the non-oil-extended styrene-ethylene-butylene-styrene block copolymer SEBS and mineral oil according to the ratio of 1:0.5-2, and stir at a high speed with a mixer to obtain oil-extended styrene-ethylene- Butylene-styrene block copolymer SEBS, the speed of the mixer is 1000 rpm, and the mixing time is 3 minutes.
[0037] 2) The speed of the mixer for polypropylene, PU copolymer, antioxidant, talcum powder and lubricant is 100 rpm, and the mixing time is 5 minutes.
[0038] 3) The premix is melted, kneaded, extruded, cooled, dried, pelletized and packaged through a twin-screw extruder.
[0039] Among them, the temperature zone control of the twin-screw extruder is: 120°C, 160°C, 190°C, 190°C, 190°C, 190°C, 190°C, 190°C, 190°C, 190°C, 190°C, 190°C, 180°C °C, 200 °C.
Embodiment 1
[0041] Styrene-ethylene-butylene-styrene block copolymer SEBS is Taiwan Rubber 6151, 25 parts; polypropylene is Formosa Plastics 5090T, 17 parts; paraffin oil is Ssangyong 250N, 20 parts; PU copolymer is Kuraray TU- S5265, 18 parts; talc powder 9.5 parts, lubricant zinc stearate 0.15 parts, erucamide 0.35 parts, antioxidant Irganox1010, 0.1 parts; Irganox168, 0.2 parts.
Embodiment 2
[0043] Styrene-ethylene-butylene-styrene block copolymer SEBS is Taiwan Rubber 6151, 30 parts; polypropylene is Formosa Plastics 5090T, 20 parts; paraffin oil is Ssangyong 250N, 25 parts; PU copolymer is Kuraray TU- S5265, 15 parts; talc powder 5 parts, lubricant zinc stearate 0.2 part, erucamide 0.5 part, antioxidant Irganox1010, 0.05 part; Irganox168, 0.1 part.
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