Toughened POM and production process thereof
A toughening and anti-oxidant technology, applied in the field of toughened polyoxymethylene and its preparation, can solve the problems of high toughness, high cost of polyoxymethylene, and small improvement that are difficult to manufacture, and achieve convenient production and use, and cost-effective products High, the effect of improving competitiveness
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[0012] The first embodiment provides a toughened POM raw material, which is composed of the following components in a weight ratio: polyoxymethylene: 70%, glass fiber: 12%, impact modifier: 15%, antioxidant 1010: 1.0%, anti-oxidant Oxygen agent 168: 0.5%, formaldehyde absorbent: 0.8%, coupling agent: 0.4%, other additives: 0.3%.
[0013] POM adopts standard flow grade, weigh POM, impact modifier, antioxidant 1010, antioxidant 168, formaldehyde absorber, coupling agent, and other additives according to the proportion and mix them at low speed in the mixer 10 minutes, the melt flow rate is 9, the mixer adopts low-speed mixing, the gap between the mixing blade and the cylinder wall should be less than 0.5 cm, the mixing effect of the raw and auxiliary materials should be visually observed that the various particles and powders are basically uniform, without obvious clumps or agglomeration; The twin-screw extruder uses 36 aspect ratio, medium-strength shearing; the extrusion granulat...
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