CN102898831A - High-flow injection molding grade nylon 66 and production process thereof - Google Patents
High-flow injection molding grade nylon 66 and production process thereof Download PDFInfo
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- CN102898831A CN102898831A CN2012104385714A CN201210438571A CN102898831A CN 102898831 A CN102898831 A CN 102898831A CN 2012104385714 A CN2012104385714 A CN 2012104385714A CN 201210438571 A CN201210438571 A CN 201210438571A CN 102898831 A CN102898831 A CN 102898831A
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Abstract
The invention relates to an organic polymer composite material, in particular to a high-flow injection molding grade nylon 66 and a production process thereof. The high-flow injection molding grade nylon 66 consists of the following compositions in percentage by weight: 95.5 to 99 percent of nylon 66 chips, 0.1 to 0.3 percent of nucleating agent, 1.0 to 3.0 percent of flow modifier, 0.3 to 1.5 percent of the antioxidant and 0.1 to 1.5 percent of other aids. The high-flow injection molding grade nylon 66 has very high fluidity, has all of the advantages of a commonly used nylon 6, is convenient to produce and purchase, raw and auxiliary materials and production equipment are made in China, and the costs of production and raw materials are low, so that the overall competitiveness of the product is greatly improved. The injecting molding is easy to demould, and release agent is not required.
Description
Technical field
The present invention relates to a kind of organic polymer composite, more particularly, relate to a kind of high-flowability injection molding grade nylon 66 and manufacture craft thereof.
Background technology
Nylon 66 is to use at present one of maximum several engineering plastics, his amide group has polarity, in his structure, has well-set hydrogen bond, so that the fusing point of nylon 66 is higher, have good physical and mechanical property and wear resistance and self lubricity, these Comprehensive Characteristics are that other plastics are not available.But the develop rapidly of present society technology is maked rapid progress, and the product innovation new invention pours out, and wherein has many product innovation structures very complicated, and requires to produce rapidly, can have lower production cost can supply to marketing fast simultaneously.So just require starting material to have higher flowability so that be full of mould, can the fast injection molding moulding, relative starting material and production cost are lower.Therefore, launched nylon 66 is carried out composite modified research.And at present Europe, Japanese etc. developed country have started all restrictions of foreign imported product for various reasons, have set up a series of barrier, wherein to the material Halogen-free requirement of electric equipment products, are exactly one of them.Simultaneously, owing to contain 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, meet the requirement of environmental protection, the most direct way is exactly the easily demouldings of starting material itself, does not need to use releasing agent, and the present technique invention produces in order effectively to overcome the prior art defective.
Summary of the invention
The object of the invention is to overcome the defective of prior art, a kind of high workability is provided, the easy demoulding of injection moulding exempts to add the high-flowability injection molding grade nylon 66 raw material of releasing agent.
Technical scheme provided by the invention is as follows: a kind of high-flowability injection molding grade nylon 66 of the present invention is made of nylon 66 slice by weight following composition: 95.5-99%, nucleator: 0.1-0.3%; Flow ability modifying agent: 1.0-3.0%, antioxidant: 0.3-1.5%; Other auxiliary agents: 0.1-1.5%.
High-flowability injection molding grade nylon 66 Production Flow Chart of the present invention is: first nylon 66 slice is dried, then with all 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 high-flowability injection molding grade nylon 66 material through screening and dewatering.
The present invention has effectively overcome the defective of prior art, has the following advantages:
A kind of high-flowability injection molding grade nylon 66 of the present invention and manufacture craft thereof, has high flowability, the easy demoulding of injection moulding, exempt to add releasing agent, all advantages that keep simultaneously nylon 66 commonly used to have, and production procurement is convenient, and raw and auxiliary material and production unit all adopt domestic, production cost and material cost are cheap, have improved so greatly comprehensive competitive power of product.
Embodiment
Below be the most preferred embodiment of high-flowability injection molding grade nylon 66 raw material of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and a kind of high-flowability injection molding grade nylon 66 is provided, and is made of by weight nylon 66 slice following composition: 96.5%; Nucleator: 0.2%; Flow ability modifying agent: 2%, antioxidant: 1.0%; Other auxiliary agents: 0.3%.
First nylon 66 slice is dried, then with antioxidant, nucleator, flow ability modifying 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, and extracting vacuum keeps the screw rod uniform rotation mixing; Adopt water cooling bracing pelletizing mode, namely make the high-flowability injection molding grade nylon 66 material through screening and dewatering.
Claims (2)
1. a high-flowability injection molding grade nylon 66 and manufacture craft thereof it is characterized in that being made of by weight nylon 66 slice following composition: 95.5-99%, nucleator: 0.1-0.3%; Flow ability modifying agent: 1.0-3.0%, antioxidant: 0.3-1.5%; Other auxiliary agents: 0.1-1.5%.
2. a high-flowability injection molding grade nylon 66 and manufacture craft thereof, it is characterized in that comprising the steps: first nylon 66 slice being dried, then with all 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 high-flowability injection molding grade nylon 66 material through screening and dewatering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104385714A CN102898831A (en) | 2012-11-05 | 2012-11-05 | High-flow injection molding grade nylon 66 and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104385714A CN102898831A (en) | 2012-11-05 | 2012-11-05 | High-flow injection molding grade nylon 66 and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102898831A true CN102898831A (en) | 2013-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104385714A Pending CN102898831A (en) | 2012-11-05 | 2012-11-05 | High-flow injection molding grade nylon 66 and production process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN102898831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104672551A (en) * | 2015-03-20 | 2015-06-03 | 沈阳科亚科技开发有限公司 | Nitrile rubber/nylon 66 alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020099117A1 (en) * | 2000-11-30 | 2002-07-25 | Kie-Youn Jeong | Polyamide resin composition |
| CN101701103A (en) * | 2009-11-26 | 2010-05-05 | 苏州市科创聚合物有限公司 | High-flowability injection molding grade nylon 66 and manufacture process thereof |
| CN101870812A (en) * | 2009-04-24 | 2010-10-27 | 上海金发科技发展有限公司 | Conductive nylon 66 material and preparation method thereof |
-
2012
- 2012-11-05 CN CN2012104385714A patent/CN102898831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020099117A1 (en) * | 2000-11-30 | 2002-07-25 | Kie-Youn Jeong | Polyamide resin composition |
| CN101870812A (en) * | 2009-04-24 | 2010-10-27 | 上海金发科技发展有限公司 | Conductive nylon 66 material and preparation method thereof |
| CN101701103A (en) * | 2009-11-26 | 2010-05-05 | 苏州市科创聚合物有限公司 | High-flowability injection molding grade nylon 66 and manufacture process thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104672551A (en) * | 2015-03-20 | 2015-06-03 | 沈阳科亚科技开发有限公司 | Nitrile rubber/nylon 66 alloy |
| CN104672551B (en) * | 2015-03-20 | 2016-08-24 | 沈阳科亚科技开发有限公司 | Nitrile rubber/nylon66 fiber alloy |
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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 |