CN102898772A - Polyformaldehyde with high abrasion resistance and preparation technology thereof - Google Patents
Polyformaldehyde with high abrasion resistance and preparation technology thereof Download PDFInfo
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- CN102898772A CN102898772A CN2012104385733A CN201210438573A CN102898772A CN 102898772 A CN102898772 A CN 102898772A CN 2012104385733 A CN2012104385733 A CN 2012104385733A CN 201210438573 A CN201210438573 A CN 201210438573A CN 102898772 A CN102898772 A CN 102898772A
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- polyformaldehyde
- polyoxymethylene
- abrasion resistance
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Abstract
The invention relates to an organic polymer composite material, more specifically, in particular to polyformaldehyde with high abrasion resistance and a preparation technology thereof. The polyformaldehyde comprises the following components according to weight ratio: 85.5-96% of polyformaldehyde, 2-5% of silicon lubricating agent, 1-5% of flexibilizer, 0.1-0.7% of formaldehyde absorbing agent, 0.1-0.4% of coupling agent, 0.3-2.0% of antioxidant and 0.1-2.5% of other auxiliaries. According to the polyformaldehyde with high abrasion resistance and the preparation technology thereof, the abrasion resistance and self-lubrication are improved on a basis of keeping excellent comprehensive mechanical performances, and the convenience for production and purchase is realized, so that the competitive power of polyformaldehyde products is largely improved, therefore the polyformaldehyde is more suitable for producing workpieces required for improving the abrasion resistance on a basis of lower material cost.
Description
Technical field
The present invention relates to a kind of organic polymer composite, more particularly, relate to a kind of high-wearing feature polyoxymethylene and manufacture craft thereof.
Background technology
Polyoxymethylene be a kind of high comprehensive performance the large kind of engineering plastics, good mechanical property, electrical property, wear resistance, dimensional stability and chemical proofing are arranged, particularly resistance to fatigue and self lubricity, wear resistance are the highest in all thermoplasticss, therefore, be widely used in replacing various non-ferrous metals and alloy to make automobile, machinery, instrument, agricultural machinery, chemical industry component, such as gear, cam, bearing, lining, packing ring, valve, liquid conducting pipes, handle and pressure vessels for the chemical industry etc.
Thereby in order to obtain better wear resisting property broadened application field, there are at present a lot of mechanisms and enterprise that the wear resistance of improving of polyoxymethylene is studied, but owing to be difficult in cost control, improve wear resistance, control and decompose to improve and fail all the time equilibrium aspect production stability etc., difficult such as people's will, so do not obtain preferably effect.Improved the wear resistance of product; but raw materials cost and production cost are too high; be difficult to form industrialization, large-scale production; it is relatively good that raw materials cost and production cost are controlled; but the wear resistance of product is improved little; DeGrain; and present America and Europe/Japan etc. developed country is for various reasons; started all restrictions of foreign imported product; set up a series of barrier; wherein strict to the material Halogen-free requirement of electric equipment products and environmental requirement causes the more export enterprise of China seriously perplexed.The present technique invention produces in order effectively to overcome this phenomenon.
Summary of the invention
The object of the invention is to overcome the defective of prior art, provide a kind of and keep good basis to increase the high wear-resistant self-lubricating polyoxymethylene raw material of the characteristic of high abrasion at comprehensive mechanical performance.
Technical scheme provided by the invention is as follows: a kind of high wear-resistant self-lubricating polyoxymethylene of the present invention is made of polyoxymethylene: 85.5-96% by weight following composition; Silicon base lubricant: 2-5%; Toughner: 1-5%; Inhale aldehyde agent: 1-1.7%; Coupling agent: 0.1-0.4%; Oxidation inhibitor: 0.3-2.0%; Other auxiliary agents: 0.1-2.5%.
High wear-resistant self-lubricating polyoxymethylene Production Flow Chart of the present invention is: first with polyoxymethylene, silicon base lubricant, toughner, the agent of suction aldehyde, coupling agent, oxidation inhibitor, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, again through twin screw extruder in the screw combinations situation that medium tenacity is sheared, keep high vacuum pressure, slow speed of revolution mixing extrusion, the water cooling bracing pelletizing makes the high wear-resistant self-lubricating polyoxymethylene material through screening and dewatering.
The present invention has effectively overcome the defective of prior art, has the following advantages:
A kind of high wear-resistant self-lubricating polyoxymethylene of the present invention and manufacture craft thereof, comprehensive mechanical performance keeps having increased the feature that improves wear resistance and self-lubricating on the good basis, and production procurement is convenient, so greatly improved the competitive power of polyoxymethylene product, the product that improves wear resistance and don't suitable higher material cost for the production of need preferably.
Embodiment
Below be the most preferred embodiment of high wear-resistant self-lubricating polyoxymethylene raw material of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and a kind of high wear-resistant self-lubricating polyoxymethylene is provided, and is made of by weight polyoxymethylene following composition: 87.6%; Silicon base lubricant: 5%; Toughner: 5%; Inhale the aldehyde agent: 0.7%; Coupling agent: 0.4%; Oxidation inhibitor: 0.8%; Other auxiliary agents: 0.5%;
First with polyoxymethylene, inhale aldehyde agent, silicon base lubricant, toughner, coupling agent, oxidation inhibitor, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, mixer adopts low speed mixing, paddle should with the barrel gap less than 0.5 centimetre, the supplementary material mixed effect should visual various particles and powder substantially even, do not have obvious agglomerate or gather; Twin screw extruder uses 36 length-to-diameter ratios, the combination of medium tenacity shear screw, and setting is not higher than 180 rev/mins rotating speed; Keep high vacuum pressure; Adopt water cooling bracing pelletizing mode, namely make the high wear-resistant self-lubricating polyoxymethylene raw material through screening and dewatering.
Claims (2)
1. a high-wearing feature polyoxymethylene and manufacture craft thereof is characterized in that: be made of by weight polyoxymethylene following composition: 85.5-96%; Silicon base lubricant: 2-5%; Toughner: 1-5%; Inhale aldehyde agent: 0.1-1.7%; Coupling agent: 0.1-0.4%; Oxidation inhibitor: 0.3-2.0%; Other auxiliary agents: 0.1-2.5%.
2. a high-wearing feature polyoxymethylene and manufacture craft thereof, it is characterized in that: comprise the steps: first with polyoxymethylene, silicon base lubricant, toughner, the agent of suction aldehyde, coupling agent, oxidation inhibitor, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, again through twin screw extruder in the screw combinations situation that medium tenacity is sheared, keep high vacuum pressure, slow speed of revolution mixing extrusion, the water cooling bracing pelletizing makes the high wear-resistant self-lubricating polyoxymethylene material through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104385733A CN102898772A (en) | 2012-11-05 | 2012-11-05 | Polyformaldehyde with high abrasion resistance and preparation technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104385733A CN102898772A (en) | 2012-11-05 | 2012-11-05 | Polyformaldehyde with high abrasion resistance and preparation technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102898772A true CN102898772A (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104385733A Pending CN102898772A (en) | 2012-11-05 | 2012-11-05 | Polyformaldehyde with high abrasion resistance and preparation technology thereof |
Country Status (1)
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| CN (1) | CN102898772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292813A (en) * | 2021-04-21 | 2021-08-24 | 江苏岚智橡塑材料有限公司 | High-impact-resistance polyformaldehyde material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759955A (en) * | 2009-11-26 | 2010-06-30 | 苏州市科创聚合物有限公司 | High wear-resistant self-lubricating polyoxymethylene and process for preparing same |
| CN102532798A (en) * | 2012-02-15 | 2012-07-04 | 开封龙宇化工有限公司 | Chopped glass fiber enhanced polyformaldehyde material |
| CN102585434A (en) * | 2012-01-06 | 2012-07-18 | 深圳市科聚新材料有限公司 | Sound-attenuating and wear-resistant polyformaldehyde material and preparation method thereof |
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2012
- 2012-11-05 CN CN2012104385733A patent/CN102898772A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759955A (en) * | 2009-11-26 | 2010-06-30 | 苏州市科创聚合物有限公司 | High wear-resistant self-lubricating polyoxymethylene and process for preparing same |
| CN102585434A (en) * | 2012-01-06 | 2012-07-18 | 深圳市科聚新材料有限公司 | Sound-attenuating and wear-resistant polyformaldehyde material and preparation method thereof |
| CN102532798A (en) * | 2012-02-15 | 2012-07-04 | 开封龙宇化工有限公司 | Chopped glass fiber enhanced polyformaldehyde material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292813A (en) * | 2021-04-21 | 2021-08-24 | 江苏岚智橡塑材料有限公司 | High-impact-resistance polyformaldehyde material and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |