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Enhanced chemical-corrosion-resistant polyformaldehyde material and preparation method thereof

A polyoxymethylene material, chemical corrosion resistance technology, applied in the field of reinforcement material modification, can solve problems such as short service life, and achieve the effect of improving strength and corrosion resistance, improving mechanical properties and heat resistance, and good fatigue resistance

Pending Publication Date: 2021-04-13
江苏岚智橡塑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of short service life in the prior art, and propose a kind of reinforced, chemically resistant polyoxymethylene material and its preparation method

Method used

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  • Enhanced chemical-corrosion-resistant polyformaldehyde material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0015] The reinforced and chemically resistant polyoxymethylene material of this embodiment is composed of the following components by weight fraction: polyoxymethylene 60%; glass fiber 5%; compatibilizer 1%; antioxidant 0.1%; micro-crosslinking agent 0.1% %; lubricant 0.1%.

[0016] A preparation method of reinforced, chemically resistant polyoxymethylene material, comprising the steps of:

[0017] S1. Add polyoxymethylene, compatibilizer, antioxidant, micro-crosslinking agent, and lubricant to the high-speed mixer for high-speed premixing according to the above-mentioned components by weight;

[0018] S2, take the mixture obtained in the S1 step and add it from the feeding port of the screw extruder, and add glass fiber in the middle section of the twin-screw extruder at the same time, the processing temperature is 170°C, the screw speed is 250r / min, and the pressure of the extruder is 10MPa, and then melt-extruded and granulated to obtain a finished polyoxymethylene materi...

Embodiment 2

[0020] The reinforced, chemically resistant polyoxymethylene material of this embodiment is composed of the following components by weight fraction: polyoxymethylene 75%; glass fiber 25%; compatibilizer 2%; antioxidant 0.3%; micro-crosslinking agent 0.3% %; lubricant 0.3%.

[0021] A preparation method of reinforced, chemically resistant polyoxymethylene material, comprising the steps of:

[0022] S1. Add polyoxymethylene, compatibilizer, antioxidant, micro-crosslinking agent, and lubricant to the high-speed mixer for high-speed premixing according to the above-mentioned components by weight;

[0023] S2, take the mixture obtained in the step S1 and add it from the feeding port of the screw extruder, and add glass fiber in the middle section of the twin-screw extruder at the same time, the processing temperature is 180°C, the screw speed is 300r / min, and the pressure of the extruder is 13MPa, and then melt-extruded and granulated to obtain the finished product 2 of the polyox...

Embodiment 3

[0025] The reinforced, chemically resistant polyoxymethylene material of this embodiment is made up of the following components by weight fraction: polyoxymethylene 95%; glass fiber 40%; compatibilizer 3%; antioxidant 0.5%; micro-crosslinking agent 0.5% %; lubricant 0.5%.

[0026] A preparation method of reinforced, chemically resistant polyoxymethylene material, comprising the steps of:

[0027] S1. Add polyoxymethylene, compatibilizer, antioxidant, micro-crosslinking agent, and lubricant to the high-speed mixer for high-speed premixing according to the above-mentioned components by weight;

[0028] S2, take the mixture obtained in the step S1 and add it from the feeding port of the screw extruder, and add glass fiber in the middle section of the twin-screw extruder at the same time, the processing temperature is 200°C, the screw speed is 350r / min, and the pressure of the extruder is 15MPa, and then melt-extruded and granulated to obtain the finished product 3 of the polyoxy...

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Abstract

The invention relates to the technical field of reinforcing material modification, and in particular, relates to an enhanced chemical-corrosion-resistant polyformaldehyde material and a preparation method thereof, wherein the enhanced chemical-corrosion-resistant polyformaldehyde material comprises the following components by weight: 60-95% of polyformaldehyde, 5%-40% of glass fibers, 1%-3% of a compatilizer, 0.1%-0.5% of an antioxidant, 0.1%-0.5% of a micro-crosslinking agent, and 0.1%-0.5% of a lubricant. The micro-crosslinking agent and the glass fibers are added into POM, so that the strength and the corrosion resistance of the POM are improved, the POM has the hardness, the strength and the rigidity similar to those of metal, and on the basis of improving the mechanical property and the heat resistance of the POM, the POM further has good fatigue resistance and good chemical corrosion resistance, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of modification of reinforcing materials, in particular to a reinforced and chemically resistant polyoxymethylene material and a preparation method thereof. Background technique [0002] In the prior art, the publication number is CN201210246391.6, in the invention patent named glass fiber reinforced polyoxymethylene resin and its preparation method, by using glass fiber reinforced polyoxymethylene with a flat cross-section, and using a circular cross-sectional glass Compared with fiber, it can improve the mechanical properties of polyoxymethylene, make it have high rigidity and toughness, increase the heat distortion temperature of polyoxymethylene at the same time, improve the warping defect of polyoxymethylene molding products, and make it suitable for making wear-reducing and wear-resistant parts , transmission parts, and chemical instruments and meters; the publication number is CN201110172462.8, and th...

Claims

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Application Information

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IPC IPC(8): C08L59/02C08K7/14C08K13/04
CPCC08K7/14C08K13/04C08L2201/08C08L59/02
Inventor 倪宝玉
Owner 江苏岚智橡塑材料有限公司
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