CN101787207A - Cold-resistant super-toughened nylon 66 and manufacturing process thereof - Google Patents
Cold-resistant super-toughened nylon 66 and manufacturing process thereof Download PDFInfo
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- CN101787207A CN101787207A CN200910233106A CN200910233106A CN101787207A CN 101787207 A CN101787207 A CN 101787207A CN 200910233106 A CN200910233106 A CN 200910233106A CN 200910233106 A CN200910233106 A CN 200910233106A CN 101787207 A CN101787207 A CN 101787207A
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Abstract
The invention relates to an organic polymer composite material, in particular to cold-resistant super-toughened nylon 66 and a manufacturing process thereof. The cold-resistant super-toughened nylon 66 consists of the following components in percentage by weight: 49.5 to 90 percent of nylon 66, 3 to 35 percent of anti-freezing agent, 3 to 35 percent of impact modifier, 0.3 to 1.5 percent of antioxidant, and 0.3 to 5.5 percent of other aids. Through the cold-resistant super-toughened nylon 66 and the manufacturing process thereof, the impact strength of a cantilever notch is about ten times higher than that of common nylon 66 at the low temperature of 40 DEG C below zero; the cold-resistant super-toughened nylon 66 is convenient to produce and purchase; and raw and auxiliary materials and production equipment are all made in China, so that the raw material cost and production cost are greatly reduced, and 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 cold-resistant super-toughened nylon 66 and preparation method thereof.
Background technology
Nylon 66 is polyamide resins, use one of maximum several engineering plastics at present, his amide group has polarity, in his structure, has well-set hydrogen bond, make 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 shock strength of pure nylon 66 is lower, and this shortcoming is more outstanding than low ambient temperature the time.Therefore, launched nylon 66 is carried out the research of compound impact modification.Cold-resistant toughened nylon 66 is because of maintenance resin inherent characteristic, and shock strength improves ten to tens of times, can still possess excellent toughness under extremely low temperature, even can reach the shatter-proof degree of pounding of cannot not falling mashedly, can be so that range of application constantly enlarges.At the product of manufacturing jagged or acute angle, or needing to tolerate extremely low temperature still keeps excellent toughness, and alternative metals improves the field in performance and life-span again with weight reduction, and irreplaceable advantage is arranged.
In the market, the related products price of external major company is very high, and there is a certain advantage of having sacrificed nylon 66 itself in the product of domestic manufacturer, or because technology or technology fully cause product with stable quality control bad inadequately, can not scale production use, the present technique invention produces in order effectively to overcome above-mentioned technological deficiency.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, provide a kind of and can tolerate the cold-resistant super-toughened nylon 66 raw material that extremely low temperature still keeps excellent toughness.
Technical scheme provided by the invention is as follows: a kind of cold-resistant super-toughened nylon 66 of the present invention, form nylon 66:49.5-90%, cold-resistant agent: 3-35% by weight by following composition; Impact modifier: 3-35%, antioxidant: 0.3-1.5%; Other auxiliary agents: 0.3-5.5%.
Cold-resistant super-toughened nylon 66 Production Flow Chart of the present invention is: earlier nylon 66, cold-resistant agent, impact modifier are all dried, then with antioxidant, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, through the parallel parallel dual-screw extruding machine of cord wood mixing extruding under the screw combinations situation that medium tenacity is sheared, the pelletizing of water-cooled tie rod makes the cold-resistant super-toughened nylon 66 material through screening and dewatering again.
The present invention has effectively overcome the defective of prior art, has the following advantages:
A kind of cold-resistant super-toughened nylon 66 of the present invention and manufacture craft thereof, can be under the cryogenic state of subzero 40 degree, the socle girder notched Izod impact strength exceeds about ten times than common nylon 66, and production procurement is convenient, raw and auxiliary material and production unit all adopt homemade, make material cost and production cost reduce greatly, effectively raise the comprehensive competitive power of product like this.
Embodiment
Below be the most preferred embodiment of cold-resistant super-toughened nylon 66 raw material of the present invention, therefore do not limit protection scope of the present invention.
Embodiment one, and a kind of cold-resistant super-toughened nylon 66 is provided, and forms nylon 66:82.5% by weight by following composition; Cold-resistant agent: 8%; Impact modifier: 8%; Antioxidant: 1.0%; Other auxiliary agents: 0.5%.
Earlier nylon 66, cold-resistant agent and impact modifier are dried with 85 degree and 60 degree respectively, then with antioxidant, 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 40 length-to-diameter ratios, and medium tenacity is sheared; Adopt water-cooled tie rod pelletizing mode, promptly make the cold-resistant super-toughened nylon 66 material through screening and dewatering.
Claims (2)
1. a cold-resistant super-toughened nylon 66 is characterized in that: form nylon 66:49.5-90%, cold-resistant agent: 3-35% by weight by following composition; Impact modifier: 3-35%, antioxidant: 0.3-1.5%; Other auxiliary agents: 0.3-5.5%.
2. method for preparing cold-resistant super-toughened nylon 66, it is characterized in that: comprise the steps: earlier nylon 66, cold-resistant agent, impact modifier all to be dried, then with antioxidant, other auxiliary agents proportionally after the weighing in mixer low speed mixing 10 minutes, through the parallel parallel dual-screw extruding machine of cord wood mixing extruding under the screw combinations situation that medium tenacity is sheared, the pelletizing of water-cooled tie rod makes the cold-resistant super-toughened nylon 66 material through screening and dewatering again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233106A CN101787207A (en) | 2009-11-26 | 2009-11-26 | Cold-resistant super-toughened nylon 66 and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910233106A CN101787207A (en) | 2009-11-26 | 2009-11-26 | Cold-resistant super-toughened nylon 66 and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101787207A true CN101787207A (en) | 2010-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910233106A Pending CN101787207A (en) | 2009-11-26 | 2009-11-26 | Cold-resistant super-toughened nylon 66 and manufacturing process thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101787207A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955660A (en) * | 2010-10-14 | 2011-01-26 | 苏州市科创聚合物有限公司 | Green environmentally-friendly semitransparent cold-resistant nylon 66 material |
| CN102876032A (en) * | 2012-11-05 | 2013-01-16 | 科创聚合物(苏州)有限公司 | Cold-resistant super-tough nylon 66 material and process for producing same |
-
2009
- 2009-11-26 CN CN200910233106A patent/CN101787207A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101955660A (en) * | 2010-10-14 | 2011-01-26 | 苏州市科创聚合物有限公司 | Green environmentally-friendly semitransparent cold-resistant nylon 66 material |
| CN102876032A (en) * | 2012-11-05 | 2013-01-16 | 科创聚合物(苏州)有限公司 | Cold-resistant super-tough nylon 66 material and process for producing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100728 |