CN105462240A - Wear-resistant polyamide (PA6) material - Google Patents
Wear-resistant polyamide (PA6) material Download PDFInfo
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- CN105462240A CN105462240A CN201410449406.8A CN201410449406A CN105462240A CN 105462240 A CN105462240 A CN 105462240A CN 201410449406 A CN201410449406 A CN 201410449406A CN 105462240 A CN105462240 A CN 105462240A
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Abstract
The invention aims to provide a modified polyamide material which improves the wear resistance of polyamide materials and a preparation method therefor. A polyamide (PA6) engineering plastic has excellent mechanical properties and electric properties and further has the advantages of being wear-resistant, oil-resistant, self-lubricating, corrosion-resistant, good in processability and the like. The use of the polyamide engineering plastic is more and more wide. The application range comprises automobiles, mechanical equipment, electronics and electrical appliances, chemical equipment, buildings, articles for daily use, communication and transportation and the like. The thermal deformation temperature of pure PA6 is about 70 DEG C, so that the service life of a mechanical part manufactured by using the pure PA6 is relatively short, and the mechanical part is limited in many occasions. According to the wear-resistant polyamide material provided by the invention, the wear resistance of the polyamide materials is relatively obviously improved and increased, and the polyamide materials are of quite important meaning in application and further popularization of the polyamide materials. The safety coefficient of automobile electric appliances, mechanical equipment, communication and transportation and the like in use is further improved.
Description
Technical field
Technical field describes paragraph.The invention belongs to polyamide material production technical field, is that one improves the original deficiency of polymeric amide specifically, modified polyamide material making it have wear resisting property and preparation method thereof.
Background technology
Polymeric amide (nylon), English name: Polyamide, abbreviation title PA.Its chemical formula is: [-NH (CH2) 6-NHCO (CH2) 4CO] n.Structural formula is as follows:
Polymeric amide (PA6) engineering plastics have excellent mechanical property and electrical property, also have the advantages such as wear-resisting, oil resistant, self-lubricating, corrosion-resistant and good processing characteristics.Its purposes is also more and more extensive, and range of application comprises automobile, mechanical means, electronic apparatus, chemical industry equipment, building, daily necessities, communications and transportation etc.The heat-drawn wire of pure PA6 is about 70 degree, therefore uses the work-ing life of pure PA6 manufacturing machine parts shorter, is restricted in many occasions.
Summary of the invention
The object of this invention is to provide a kind of modified polyamide material improving polyamide material wear resistance and preparation method thereof.
Wear resistance polypropylene material is made up of following weight ratio raw material:
Polymeric amide (PA6) raw material: 75 ~ 95
Nano-aluminium oxide (10.4nm): 2.0 ~ 4.0
Oxidation inhibitor: 1.0 ~ 3.0
Silane coupling agent: 1.0 ~ 3.0
Oxidation inhibitor of the present invention is the multipolymer of ethylene-octene; Coupling agent adopts silane coupling agent to be SG-Si902.
The preparation method of this wear resistance polyamide material, comprises the following steps: first above-mentioned various raw material to be dry mixed 15-20 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 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
The mechanical property of gained polyamide abrasion-proof material of the present invention can reach use standard, and greatly can improve the wear resisting property of polyamide material, makes polyamide material improve safety performance in use.
Embodiment
Below by embodiment, the present invention is described further, and following examples are only that the present invention will be described but not are limited it.
Embodiment 1:
(1) by weight score to take each raw material respectively as follows:
Polymeric amide (PA6) raw material: 85
Nano-aluminium oxide (10.4nm): 3.0
Oxidation inhibitor (multipolymer of ethylene-octene): 2.0
Silane coupling agent (SG-Si902): 2.0
(2) first above-mentioned various raw material is dry mixed 15-20 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 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 105.5 |
| 2 elongation at break % | ASTM/D638 | / | 6.7 |
| 3 flexural strength MPa | ASTM/D790 | / | 145.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4320.5 |
| 5 Izod notched impact strength J/m | ASTM/D256 | / | 80.0 |
Above-mentioned experimental result shows, the wear resisting property of polymeric amide flame-retardant materials obtains very significantly improving and all the other mechanical properties also get a promotion and improve.
Embodiment 2:
(1) by weight score to take each raw material respectively as follows:
Polymeric amide (PA6) raw material: 75
Nano-aluminium oxide (10.4nm): 2.0
Oxidation inhibitor (multipolymer of ethylene-octene): 1.0
Silane coupling agent (SG-Si902): 1.0
(2) first above-mentioned various raw material is dry mixed 15-20 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 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 102.5 |
| 2 elongation at break % | ASTM/D638 | / | 7.0 |
| 3 flexural strength MPa | ASTM/D790 | / | 140.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4302.5 |
| 5 Izod notched impact strength J/m | ASTM/D256 | / | 75.0 |
Above-mentioned test result shows, the wear resisting property of polyamide material is significantly improved and improves.
Embodiment 3:
(1) by weight score to take each raw material respectively as follows:
Polymeric amide (PA6) raw material: 95
Nano-aluminium oxide (10.4nm): 4.0
Oxidation inhibitor (multipolymer of ethylene-octene): 3.0
Silane coupling agent (SG-Si902): 3.0
(2) first above-mentioned various raw material is dry mixed 15-20 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 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 DEG C, and the residence time is 1-2 minute, and pressure is 10-15Mpa.
Experimental result:
| Characteristic parameter | Testing standard | Performance index | Test data |
| 1 tensile strength MPa | ASTM/D638 | / | 102.0 |
| 2 elongation at break % | ASTM/D638 | / | 7.2 |
| 3 flexural strength MPa | ASTM/D790 | / | 142.0 |
| 4 modulus in flexure MPa | ASTM/D790 | / | 4322.0 |
| 5 Izod notched impact strength J/m | ASTM/D256 | / | 77.0 |
Above-mentioned experimental result shows, the wear resisting property of polyamide material obtains comparatively significantly improving, but relative to the proportioning of embodiment 1 and embodiment 2, all the other mechanical properties exist certain gap.
Above-described embodiment is of the present invention illustrating, is not used for limiting the present invention.Shown by above-mentioned experiment, wherein embodiment 1 is optimum weight percent, and the tensile strength of the wear resistance polyamide material manufactured by present method, elongation at break, the performance such as flexural strength and modulus in flexure obtain obvious improvement.
Wear resistance polyamide material of the present invention, for application and the further genralrlization of polyamide material, tool is of great significance.Also the proud raising of safety coefficient in car electrics, mechanical means, communications and transportation etc. use is made.
Claims (4)
1. wear resistance polyamide material, is characterized in that: be made up of following weight ratio raw material,
Polymeric amide (PA6) raw material: 75 ~ 95
Nano-aluminium oxide (10.4nm): 2.0 ~ 4.0
Oxidation inhibitor: 1.0 ~ 3.0
Silane coupling agent: 1.0 ~ 3.0.
2. wear resistance polyamide material according to claim 1, is characterized in that: optimum weight percent raw material consists of:
Polymeric amide (PA6) raw material: 85
Nano-aluminium oxide (10.4nm): 3.0
Oxidation inhibitor: 2.0
Silane coupling agent: 2.0.
3. wear resistance polyamide material according to claim 1, is characterized in that: oxidation inhibitor of the present invention is the multipolymer of ethylene-octene; Coupling agent adopts silane coupling agent to be SG-Si902.
4. wear resistance polyamide material according to claim 1, is characterized in that: first above-mentioned various raw material is dry mixed 15-20 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 160-180 DEG C, and 2nd district are 230-250 DEG C, and 3rd district are 255-275 DEG C, and 4th district are 250-270 DEG C; 5th district are 230-250 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 |
|---|---|---|---|
| CN201410449406.8A CN105462240A (en) | 2014-09-05 | 2014-09-05 | Wear-resistant polyamide (PA6) material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449406.8A CN105462240A (en) | 2014-09-05 | 2014-09-05 | Wear-resistant polyamide (PA6) material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105462240A true CN105462240A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410449406.8A Pending CN105462240A (en) | 2014-09-05 | 2014-09-05 | Wear-resistant polyamide (PA6) material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105462240A (en) |
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2014
- 2014-09-05 CN CN201410449406.8A patent/CN105462240A/en active Pending
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Application publication date: 20160406 |
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| WD01 | Invention patent application deemed withdrawn after publication |