CN101701098A - Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and production process thereof - Google Patents
Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and production process thereof Download PDFInfo
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- CN101701098A CN101701098A CN200910233110A CN200910233110A CN101701098A CN 101701098 A CN101701098 A CN 101701098A CN 200910233110 A CN200910233110 A CN 200910233110A CN 200910233110 A CN200910233110 A CN 200910233110A CN 101701098 A CN101701098 A CN 101701098A
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- molybdenum disulfide
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Abstract
The invention relates to an organic high-molecular composite material, specifically to a self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and a preparation method thereof; the material comprises the following components in weight percent: 86.5-90% of polyformaldehyde, 1-10% of molybdenum disulfide powder, 1-5% of toughening agent, 0.2-2.0% of antioxidant, 0.1-1.7% of aldehyde absorbing agent, 0.1-0.4% of coupling agent and 0.1-2.5% of other auxiliary agents. The invention increases characteristics of high abrasion resistance based on keeping excellent comprehensive mechanical property, has convenient raw material production and procurement and low production cost, and the raw material is not decomposed to produce choking odor when injecting or extruding the products; thus, the comprehensive competition capability of products is totally improved.
Description
Technical field
The present invention relates to a kind of organic polymer composite, more particularly, relate to a kind of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and preparation method thereof.
Background technology
Polyoxymethylene be a kind of high comprehensive performance the big kind of engineering plastics, favorable mechanical performance, 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, as gear, cam, bearing, lining, packing ring, valve, liquid conducting pipes, handle and pressure vessels for the chemical industry or the like.
Thereby in order to obtain better wear resistance energy broadened application field, there are a lot of mechanisms and enterprise that the wear resistance of improving of polyoxymethylene is studied at present, but, owing to be difficult in cost control, improve wear resistance, control and decompose to improve and fail equilibrium aspect production stability or the like all the time, difficult as people's will, so do not obtain effect preferably.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 or the like developed country is for various reasons; started all restrictions of foreign imported product; set up a series of barrier, wherein, to the material Halogen requirement of electric equipment products and the strictness of environmental requirement; because usually polyoxymethylene is in injection moulding or extrude and can decompose the people's smell that causes choking when producing product and make, this also in pairs the more export enterprise of China seriously perplex.The present technique invention produces in order effectively to overcome this phenomenon.
Summary of the invention
The objective of the invention is to effectively overcome the defective of prior art, a kind of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde raw material that keeps having increased on the good basis characteristic of high abrasion at comprehensive mechanical performance is provided.
Technical scheme provided by the invention is as follows: a kind of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde of the present invention, form polyoxymethylene by weight by following composition: 86.5-90%; Molybdenumdisulphide powder: 1-10%; Toughner: 1-5%; Oxidation inhibitor: 0.2-2.0%; Inhale aldehyde agent: 0.1-1.7%; Coupling agent: 0.1-0.4%; Other auxiliary agents: 0.1-2.5%.
Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde Production Flow Chart of the present invention is: earlier with polyoxymethylene, molybdenumdisulphide powder, toughner, oxidation inhibitor, the agent of suction aldehyde, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, the slow speed of revolution is mixing under the screw combinations situation that medium tenacity is sheared extrudes through twin screw extruder again, and the pelletizing of water-cooled tie rod makes the self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde material through screening and dewatering.
The present invention has effectively overcome the defective of prior art, has the following advantages:
A kind of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde of the present invention and manufacture craft thereof, the characteristic that keeps having increased on the good basis high abrasion at comprehensive mechanical performance, raw material production buying of the present invention is convenient, low production cost, and in injection moulding or extrude also not decompose when producing product and cause choking people's smell, comprehensive like this comprehensive competitive power that improves product.
Embodiment
Below be the most preferred embodiment of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde raw material of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and a kind of self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde is provided, and forms polyoxymethylene by weight by following composition: 87.4%; Oxidation inhibitor: 1.5%; Inhale the aldehyde agent: 0.7%; Molybdenumdisulphide powder: 5%; Toughner: 3%; Coupling agent: 0.2%; Other auxiliary agents: 2.2%;
Earlier with polyoxymethylene, oxidation inhibitor, the agent of suction aldehyde, molybdenumdisulphide powder, toughner, coupling agent, 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 even substantially, 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; Adopt water-cooled tie rod pelletizing mode, promptly make the self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde material through screening and dewatering.
Claims (2)
1. a self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde is characterized in that: form polyoxymethylene by weight by following composition: 86.5-90%; Molybdenumdisulphide powder: 1-10%; Toughner: 1-5%; Oxidation inhibitor: 0.2-2.0%; Inhale aldehyde agent: 0.1-1.7%; Coupling agent: 0.1-0.4%; Other auxiliary agents: 0.1-2.5%.
2. method for preparing self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde, it is characterized in that: comprise the steps: earlier with polyoxymethylene, molybdenumdisulphide powder, toughner, oxidation inhibitor, the agent of suction aldehyde, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, the slow speed of revolution is mixing under the screw combinations situation that medium tenacity is sheared extrudes through twin screw extruder again, and the pelletizing of water-cooled tie rod makes the self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde material through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233110A CN101701098A (en) | 2009-11-26 | 2009-11-26 | Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233110A CN101701098A (en) | 2009-11-26 | 2009-11-26 | Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and production process thereof |
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| CN101701098A true CN101701098A (en) | 2010-05-05 |
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| CN200910233110A Pending CN101701098A (en) | 2009-11-26 | 2009-11-26 | Self-lubricating abrasion-proof injection grade molybdenum disulfide filling polyformaldehyde and production process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382415A (en) * | 2010-09-06 | 2012-03-21 | 苏州工业园区鑫丰林塑料科技有限公司 | Wear-resisting plastic with high mechanical strength |
| CN102888076A (en) * | 2012-11-05 | 2013-01-23 | 科创聚合物(苏州)有限公司 | Preparation process of self-lubricating wear-resistant injection molding molybdenum disulfide polyformaldehyde |
| CN103044853A (en) * | 2012-12-26 | 2013-04-17 | 上海蓝星聚甲醛有限公司 | Abrasion-resistance and low-warpage polyformaldehyde material as well as preparation method and application thereof |
| CN106633610A (en) * | 2016-12-13 | 2017-05-10 | 无锡市四方达高分子材料有限公司 | Abrasion-resistant high-polymer material |
| CN108047638A (en) * | 2017-12-12 | 2018-05-18 | 四川国鑫机械制造有限公司 | Pneumatic sample sending box of Wear-resistant, high-temperature resistant and preparation method thereof |
-
2009
- 2009-11-26 CN CN200910233110A patent/CN101701098A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382415A (en) * | 2010-09-06 | 2012-03-21 | 苏州工业园区鑫丰林塑料科技有限公司 | Wear-resisting plastic with high mechanical strength |
| CN102888076A (en) * | 2012-11-05 | 2013-01-23 | 科创聚合物(苏州)有限公司 | Preparation process of self-lubricating wear-resistant injection molding molybdenum disulfide polyformaldehyde |
| CN103044853A (en) * | 2012-12-26 | 2013-04-17 | 上海蓝星聚甲醛有限公司 | Abrasion-resistance and low-warpage polyformaldehyde material as well as preparation method and application thereof |
| CN103044853B (en) * | 2012-12-26 | 2015-02-04 | 上海蓝星聚甲醛有限公司 | Abrasion-resistance and low-warpage polyformaldehyde material as well as preparation method and application thereof |
| CN106633610A (en) * | 2016-12-13 | 2017-05-10 | 无锡市四方达高分子材料有限公司 | Abrasion-resistant high-polymer material |
| CN108047638A (en) * | 2017-12-12 | 2018-05-18 | 四川国鑫机械制造有限公司 | Pneumatic sample sending box of Wear-resistant, high-temperature resistant and preparation method thereof |
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Open date: 20100505 |