CN102888096A - Self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and manufacturing process thereof - Google Patents
Self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and manufacturing process thereof Download PDFInfo
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- CN102888096A CN102888096A CN2012104384618A CN201210438461A CN102888096A CN 102888096 A CN102888096 A CN 102888096A CN 2012104384618 A CN2012104384618 A CN 2012104384618A CN 201210438461 A CN201210438461 A CN 201210438461A CN 102888096 A CN102888096 A CN 102888096A
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- temperature nylon
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Abstract
The invention relates to an organic high polymer composite material, and more specifically relates to a self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and a manufacturing process thereof. The self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon is composed of the following components in percentage by weight: 87-95% of high-temperature nylon, 0.1-2.5% of high molecular weight silicone oil, 1-15% of molybdenum disulfide powder, 0.3-1.5% of antioxidant, 0.1-2.0% of coupling agent and 0.3-5.5% of other assistants. According to the invention, the product can be automatically demolded during injection molding production without using a demolding agent, thereby directly avoiding the residue of cyclic aromatic nitrile contained in the demolding agent on the product and ensuring that the product is more environment-friendly; the raw materials used in the invention are convenient to produce and purchase; the raw materials, auxiliary materials, additives and production equipment are all made in China; and the production cost and the raw material cost are greatly lowered. Thus, the comprehensive competitive power of the product is effectively 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 high-temperature nylon and manufacture craft thereof.
Background technology
At present, application with the alternative natural materials of plastics constantly enlarges in the world, scientist all over the world actively seeks new high-performance thermoplastics and comes alternative metals and timber by various tests, and this also becomes enterprise and strives for more families and the important component part of extending volume growth.
It is possible that the development of high temperature resistant nylon changes into the more microminiaturized lightweight of industrial or agricultural and civilian installation and powerful.High temperature resistant nylon can bring higher heat resistance for some parts, or simply having substituted raw material metal produces these parts.The device of novel appts and assembly equally also useful high temperature resistant nylon replace the trend of metal and thermosetting material.These all will strengthen the demand to the high temperature resistant nylon material, thereby drive the market requirement.
These high temperature resistant nylon materials can anti-180 ℃ continuous high temperature, and can also keep good dimensional stability.Have excellent long-term and short term thermal performance, can tolerate the high temperature that infrared (IR) reflow ovens of using in the pb-free solder process produces, and under wet environment, provide identical intensity, the chemical resistant properties of brilliance.But, the develop rapidly of present society technology, say crescent different, the product innovation new invention pours out, relating to requirement for picture can have the very big width of cloth to reduce frictional coefficient, extremely strong component of starting material self wear resistance simultaneously, the plurality of advantages of common high-temperature nylon allows the designer favor very much, but but the shortcoming of self wear resistance deficiency allows people's headache very much.The larger range of application that limits high-temperature nylon of this shortcoming, owing to containing many cyclophanes cyanogen in the more releasing agent, this also is the composition of strict restriction in present many environmental requirements, in order to ensure safety simultaneously, the most direct way is exactly the easily demouldings of starting material itself, does not need to use releasing agent.
Summary of the invention
The object of the invention is to overcome the defective of prior art, a kind of possess fabulous self lubricity and wear resistance be provided, and when producing product the self-lubricating abrasion-resistant injection curing key filled high-temperature nylon raw material of the demoulding voluntarily.
Technical scheme provided by the invention is as follows: a kind of self-lubricating abrasion-resistant injection curing key filled high-temperature nylon of the present invention is made of high-temperature nylon: 87-95% by weight following composition; High molecular silicone oil: 0.1-2.5%; Molybdenumdisulphide powder: 1-15%, antioxidant: 0.3-1.5%; Coupling agent: 0.1-2.0%; Other auxiliary agents: 0.3-5.5%.
Self-lubricating abrasion-resistant injection curing key filled high-temperature nylon of the present invention Production Flow Chart is: first the molybdenumdisulphide powder was placed 6 hours after temperature is to mix ten minutes under the 50 degree left and right sides conditions in proportion more naturally with coupling agent, high-temperature nylon mixed in mixer 10 minutes with high molecular silicone oil, then with antioxidant, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, vacuumize at the uniform velocity mixing extrusion through cord wood parallel equidirectional two-screw forcing machine in the screw combinations situation that medium tenacity is sheared again, the water cooling bracing pelletizing makes self-lubricating abrasion-resistant injection curing key filled high-temperature nylon 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-resistant injection curing key filled high-temperature nylon of the present invention and manufacture craft thereof, the voluntarily demoulding when product is produced in injection moulding, do not need to use releasing agent, directly avoided residual on product of the cyclophane cyanogen that contains in the releasing agent, so that more environmental protection of product, and the raw materials used production procurement of the present invention is convenient, all adopt domestic supplementary material and additive and production unit, production cost and material cost reduce greatly, effectively raise like this comprehensive competitive power of product.
Embodiment
Below be the most preferred embodiment of self-lubricating abrasion-resistant injection curing key filled high-temperature nylon 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-resistant injection-class molybdenum disulfide-filled high-temperature nylon is provided, and is made of by weight high-temperature nylon following composition: 90.4%; High molecular silicone oil: 2.0%; Curing key powder: 5%, antioxidant: 1.0%; Coupling agent: 1.0%; Other auxiliary agents: 0.6%.
First curing key powder after being to mix ten minutes under the 50 degree left and right sides conditions, temperature was placed 6 hours in proportion more naturally with coupling agent, high-temperature nylon mixed in mixer 10 minutes with high molecular silicone oil, then with antioxidant, 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 substantially even, do not have obvious agglomerate or gather; Twin screw extruder uses 40 length-to-diameter ratios, and medium tenacity is sheared, extracting vacuum, the screw rod slow speed of revolution that remains a constant speed; Adopt water cooling bracing pelletizing mode, namely make self-lubricating abrasion-resistant injection curing key filled high-temperature nylon material through screening and dewatering.
Claims (2)
1. a self-lubricating abrasion-proof injection grade molybdenum disulfide high-temperature nylon and manufacture craft thereof it is characterized in that being made of by weight high-temperature nylon following composition: 87-95%; High molecular silicone oil: 0.1-2.5%; Curing key powder antioxidant: 0.3-1.5%; Coupling agent: 0.1-2.0%; Other auxiliary agents: 0.3-5.5%.
2. a self-lubricating abrasion-proof injection grade molybdenum disulfide high-temperature nylon and manufacture craft thereof, it is characterized in that comprising the steps: first curing key powder being placed 6 hours after temperature is to mix ten minutes under the 50 degree left and right sides conditions in proportion more naturally with coupling agent, high-temperature nylon mixed in mixer 10 minutes with high molecular silicone oil, then with antioxidant, coupling agent, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, vacuumize at the uniform velocity mixing extrusion through cord wood parallel equidirectional two-screw forcing machine in the screw combinations situation that medium tenacity is sheared again, the water cooling bracing pelletizing makes the self-lubricating abrasion-resistant injection-class molybdenum disulfide-filled high-temperature nylon material through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104384618A CN102888096A (en) | 2012-11-05 | 2012-11-05 | Self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104384618A CN102888096A (en) | 2012-11-05 | 2012-11-05 | Self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and manufacturing process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102888096A true CN102888096A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012104384618A Pending CN102888096A (en) | 2012-11-05 | 2012-11-05 | Self-lubricating wear-resistant injection molding grade molybdenum disulfide high-temperature nylon and manufacturing process thereof |
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| CN (1) | CN102888096A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200591A (en) * | 2006-12-15 | 2008-06-18 | 上海杰事杰新材料股份有限公司 | Fast-flow high temperature resistant nylon composite material |
| CN101792594A (en) * | 2009-11-26 | 2010-08-04 | 苏州市科创聚合物有限公司 | Self-lubricating abrasion-resistant injection-class molybdenum disulfide-filled high-temperature nylon and preparation technique thereof |
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2012
- 2012-11-05 CN CN2012104384618A patent/CN102888096A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200591A (en) * | 2006-12-15 | 2008-06-18 | 上海杰事杰新材料股份有限公司 | Fast-flow high temperature resistant nylon composite material |
| CN101792594A (en) * | 2009-11-26 | 2010-08-04 | 苏州市科创聚合物有限公司 | Self-lubricating abrasion-resistant injection-class molybdenum disulfide-filled high-temperature nylon and preparation technique thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130123 |