CN105462158A - Weather-resistant polyoxymethylene - Google Patents
Weather-resistant polyoxymethylene Download PDFInfo
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- CN105462158A CN105462158A CN201410451316.2A CN201410451316A CN105462158A CN 105462158 A CN105462158 A CN 105462158A CN 201410451316 A CN201410451316 A CN 201410451316A CN 105462158 A CN105462158 A CN 105462158A
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Abstract
The invention aims to provide weather-resistant polyoxymethylene which is resistant to acid, strong alkali, sunlight ultraviolet radiation and the like. The weather-resistant polyoxymethylene comprises the following components in parts by weight: 75-90 parts of a polyoxymethylene raw material, 1.0-3.0 parts of an antioxidant, 7.0-11.0 parts of an ultraviolet absorber, 0.5-1.5 parts of a TAS-2A dispersed lubricant, 1.0-5.0 parts of nano zinc oxide, 1.0-3.0 parts of a stabilizing agent, and an appropriate amount of white oil. The weather-resistant polyoxymethylene preferably comprises the following components in parts by weight: 85 parts of the polyoxymethylene raw material, 2.0 parts of the antioxidant, 9.0 parts of the ultraviolet absorber, 1.0 part of the TAS-2A dispersed lubricant, 3.0 parts of nano zinc oxide, 2.0 parts of the stabilizing agent, and an appropriate amount of the white oil. The weather-resistant polyoxymethylene provided by the invention is resistant to acid, strong alkali and sunlight ultraviolet radiation, and cannot influence mechanical properties of a material at the same time.
Description
Technical field
The invention belongs to chemical field, particularly relate to polyoxymethylene.
Background technology
Polyoxymethylene is a kind of tough and tensile resilient material, even if still have good creep resistance characteristic, geometrical stability and impact property at low temperatures.The existing homopolymer material of polyoxymethylene also has copolymer material.Homopolymer material has good ductility/strength, fatigue resistance, but is not easy to processing.Copolymer material have good thermostability, chemical stability and be easy to processing.No matter homopolymer material or copolymer material, is all crystalline material and not easily absorbs moisture.Polyoxymethylene does not have side chain, high-density, the linear polymer of high crystalline, has excellent over-all properties.Its wear resistance and self lubricity are also superior than most engineering plastics, have good oil resistant again, resistance to superoxide performance.Very not acidproof, the radiation of not resistance to highly basic and not resistance to solar ultraviolet, therefore will be placed on outdoor polyoxymethylene, just must change the weathering resistance of polyoxymethylene.
Summary of the invention
The object of the present invention is to provide the weather-proof polyoxymethylene of the radiation of a kind of acidproof, highly basic and resistance to solar ultraviolet etc.
The weight ratio of weather-proof polyoxymethylene provided by the invention consists of: polyoxymethylene raw material: 75-90 oxidation inhibitor: 1.0-3.0 ultraviolet absorbers: 7.0-11.0TAS-2A dispersed lubricant: 0.5-1.5 nano zine oxide: 1.0-5.0 stablizer: 1.0-3.0 white oil: appropriate.
Above-mentioned weather-proof polyoxymethylene composition preferred weight ratio is: polyoxymethylene raw material: 85 oxidation inhibitor: 2.0 ultraviolet absorbers: 9.0TAS-2A dispersed lubricant: 1.0 nano zine oxides: 3.0 stablizers: 2.0 white oils: appropriate.
Above-mentioned oxidation inhibitor is preferably the multipolymer of ethylene-octene, and ultraviolet absorbers is preferably Octabenzone.
Another object of the present invention is to provide a kind of method preparing weather-proof polyoxymethylene, the method is as follows: first above-mentioned various raw material is dry mixed 3-5 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 90-100 DEG C, and 2nd district are 150-180 DEG C, and 3rd district are 200-210 DEG C, and 4th district are 200-205 DEG C; 5th district are 190-200 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Weather-proof polyoxymethylene provided by the invention is can the weather-proof polyoxymethylene of radiation of acidproof, highly basic and resistance to solar ultraviolet, does not affect the mechanical property of material simultaneously.
Embodiment
Once the present invention is further illustrated in conjunction with the embodiments, but embodiment is not limitation of the present invention.
Embodiment 1:
(1) raw material of following weight ratio is taken:
Polyoxymethylene raw material: 85 oxidation inhibitor: 2.0 ultraviolet absorbers: 9.0TAS-2A dispersed lubricant: 1.0 nano zine oxides: 3.0 stablizers: 2.0 white oils: appropriate.
(2) first above-mentioned various raw material is dry mixed 3-5 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 90-100 DEG C, and 2nd district are 150-180 DEG C, and 3rd district are 200-210 DEG C, and 4th district are 200-205 DEG C; 5th district are 190-200 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
The physical function parameter of above-mentioned weather-proof polyoxymethylene is as follows:
Be can the weather-proof polyoxymethylene of radiation of acidproof, highly basic and resistance to solar ultraviolet by the above-mentioned weather-proof polyoxymethylene of above data, do not affect the mechanical property of material simultaneously, but slightly decline than embodiment 1.
Embodiment 2:
(1) raw material of following weight ratio is taken:
Polyoxymethylene raw material: 75 oxidation inhibitor: 1.0 ultraviolet absorbers: 7.0TAS-2A dispersed lubricant: 0.5 nano zine oxide: 1.0-5.0 stablizer: 1.0 white oils: appropriate.
(2) first above-mentioned various raw material is dry mixed 3-5 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 90-100 DEG C, and 2nd district are 150-180 DEG C, and 3rd district are 200-210 DEG C, and 4th district are 200-205 DEG C; 5th district are 190-200 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
The physical function parameter of above-mentioned weather-proof polyoxymethylene is as follows:
Be can the weather-proof polyoxymethylene of radiation of acidproof, highly basic and resistance to solar ultraviolet by the above-mentioned weather-proof polyoxymethylene of above data, do not affect the mechanical property of material simultaneously, but slightly decline than embodiment 1.
Embodiment 3:
(1) raw material of following weight ratio is taken:
Polyoxymethylene raw material: 90 oxidation inhibitor: 3.0 ultraviolet absorbers: 11.0TAS-2A dispersed lubricant: 1.5 nano zine oxides: 5.0 stablizers: 3.0 white oils: appropriate.
(2) first above-mentioned various raw material is dry mixed 3-5 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 90-100 DEG C, and 2nd district are 150-180 DEG C, and 3rd district are 200-210 DEG C, and 4th district are 200-205 DEG C; 5th district are 190-200 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
The physical function parameter of above-mentioned weather-proof polyoxymethylene is as follows:
Be can the weather-proof polyoxymethylene of radiation of acidproof, highly basic and resistance to solar ultraviolet by the above-mentioned weather-proof polyoxymethylene of above data, do not affect the mechanical property of material simultaneously, but slightly decline than embodiment 1.
Claims (4)
1. a weather-proof polyoxymethylene, comprises following weight ratio composition: polyoxymethylene raw material: 75-90 oxidation inhibitor: 1.0-3.0 ultraviolet absorbers: 7.0-11.0TAS-2A dispersed lubricant: 0.5-1.5 nano zine oxide: 1.0-5.0 stablizer: 1.0-3.0 white oil: appropriate.
2. the weather-proof polyoxymethylene of one according to claim 1, is characterized in that preferred weight ratio is: polyoxymethylene raw material: 85 oxidation inhibitor: 2.0 ultraviolet absorbers: 9.0TAS-2A dispersed lubricant: 1.0 nano zine oxides: 3.0 stablizers: 2.0 white oils: appropriate.
3. the weather-proof polyoxymethylene of one according to claim 1, it is characterized in that the excellent multipolymer for ethylene-octene of oxidation inhibitor, ultraviolet absorbers is Octabenzone.
4. prepare the method for the weather-proof polyoxymethylene of claims 1 to 3 for one kind, the method is as follows: first the various raw material of claim 1 or 2 or 3 is dry mixed 3-5 minute in super mixer, then be placed in twin screw extruder through melt extruding, cooling, pelletizing, packaging final prod; Wherein, twin screw extruder one district temperature is 90-100 DEG C, and 2nd district are 150-180 DEG C, and 3rd district are 200-210 DEG C, and 4th district are 200-205 DEG C; 5th district are 190-200 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410451316.2A CN105462158A (en) | 2014-09-05 | 2014-09-05 | Weather-resistant polyoxymethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410451316.2A CN105462158A (en) | 2014-09-05 | 2014-09-05 | Weather-resistant polyoxymethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105462158A true CN105462158A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410451316.2A Pending CN105462158A (en) | 2014-09-05 | 2014-09-05 | Weather-resistant polyoxymethylene |
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| CN (1) | CN105462158A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181209A (en) * | 2018-09-30 | 2019-01-11 | 重庆鑫翎创福光电科技股份有限公司 | A kind of polyformaldehyde material composition |
| CN110168014A (en) * | 2017-03-31 | 2019-08-23 | 宝理塑料株式会社 | Polyacetal resin composite |
-
2014
- 2014-09-05 CN CN201410451316.2A patent/CN105462158A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110168014A (en) * | 2017-03-31 | 2019-08-23 | 宝理塑料株式会社 | Polyacetal resin composite |
| CN110168014B (en) * | 2017-03-31 | 2021-11-30 | 宝理塑料株式会社 | Polyacetal resin composition |
| CN109181209A (en) * | 2018-09-30 | 2019-01-11 | 重庆鑫翎创福光电科技股份有限公司 | A kind of polyformaldehyde material composition |
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Application publication date: 20160406 |