CN115819966A - Wear-resistant reinforced nylon material and preparation method thereof - Google Patents
Wear-resistant reinforced nylon material and preparation method thereof Download PDFInfo
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- CN115819966A CN115819966A CN202211592048.7A CN202211592048A CN115819966A CN 115819966 A CN115819966 A CN 115819966A CN 202211592048 A CN202211592048 A CN 202211592048A CN 115819966 A CN115819966 A CN 115819966A
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- 229920001778 nylon Polymers 0.000 title claims abstract description 60
- 239000004677 Nylon Substances 0.000 title claims abstract description 59
- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 19
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 40
- 239000003365 glass fiber Substances 0.000 claims abstract description 27
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 26
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 26
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 20
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 17
- 230000003078 antioxidant effect Effects 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 13
- 239000000314 lubricant Substances 0.000 claims description 10
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 238000005453 pelletization Methods 0.000 claims description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 16
- -1 polytetrafluoroethylene Polymers 0.000 description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 description 8
- 239000002131 composite material Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001408 amides Chemical group 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 125000006367 bivalent amino carbonyl group Chemical group [H]N([*:1])C([*:2])=O 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 210000001320 hippocampus Anatomy 0.000 description 1
- 229910052739 hydrogen Chemical group 0.000 description 1
- 239000001257 hydrogen Chemical group 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000002113 nanodiamond Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides a wear-resistant reinforced nylon material and a preparation method thereof, wherein the wear-resistant reinforced nylon material comprises the following raw materials in parts by weight: 42-67 parts of nylon, 4-10 parts of surface activated ultra-high molecular weight polyethylene, 20-30 parts of chopped glass fiber, 5-10 parts of magnesium sulfate whisker, 2-5 parts of compatilizer and 2-3 parts of auxiliary agent. According to the invention, the wear-resisting property of nylon is improved by activating the ultra-high molecular weight polyethylene on the surface, the strength of the material is improved by adding the glass fiber and the whisker, and the wear-resisting material has the characteristics of high temperature resistance, wear resistance, high dimensional stability, high impact strength and the like. And the preparation method has the advantages of simple process, low investment, low energy consumption, high efficiency and obvious economic and social benefits.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a wear-resistant reinforced nylon material and a preparation method thereof.
Background
Polyamides, commonly known as nylons, are a generic name for thermoplastic resins containing recurring amide groups- [ NHCO ] -in the molecular backbone. The nylon main chain has strong polar amide groups, and hydrogen bonds among the amide groups enhance the bonding force among molecules, so that the structure is easy to crystallize, and the nylon has high mechanical strength and good oil resistance and wear resistance, and is widely applied to the field of friction and wear. Nylon is used as a wear-resistant material, a corresponding wear-resistant auxiliary agent needs to be added, and the commonly used wear-resistant auxiliary agents mainly comprise graphite, molybdenum disulfide, polytetrafluoroethylene (PTFE), silicone oil, glass fiber, carbon fiber, aramid fiber, part of mineral whiskers, mineral filler and the like, wherein the most commonly used wear-resistant auxiliary agents are graphite, molybdenum disulfide, polytetrafluoroethylene and silicone oil.
Patent document CN101182388A discloses a high wear-resistant high-rigidity reinforced nylon 66 composite material and a preparation method thereof, wherein the composite material is composed of the following raw materials in parts by weight: nylon 66100 parts, nucleating agent 0.1-15 parts, wear-resisting agent 5-30 parts, heat stabilizer and processing aid 0.5-3 parts, and glass fiber 15-105 parts. The wear-resistant agent disclosed by the document is polytetrafluoroethylene powder and graphite, so that the maximum static friction coefficient of a nylon 66 composite material is 0.11, and the maximum dynamic friction coefficient of the nylon 66 composite material is 0.07. Patent document CN102757639A discloses a high-strength and high-wear-resistance nylon and a preparation method thereof, wherein nano-diamond powder and high-content glass fiber are added to prepare a high-strength and high-wear-resistance nylon material, so that the strength of the material is improved, and the wear resistance of the material is increased. Patent document CN115160777A discloses a super wear-resistant hydrophobic nylon composite material with stable size and a preparation method thereof, comprising: nylon 12-93%, polytetrafluoroethylene 0-10%, silicone oil 0.1-1.5%, ultra-high molecular weight polyethylene 0-10%, compatilizer 0-2%, and antioxidant 0.1-0.4%. Patent document CN113292845A discloses a high-gloss wear-resistant nylon and a preparation method thereof, comprising: 60-80 parts of nylon, 3-5 parts of polytetrafluoroethylene, 3-5 parts of graft modified ultrahigh molecular weight polyethylene, 10-18 parts of chiral titanium dioxide fiber, 2-5 parts of mesoporous silica spheres, 1-3 parts of potassium hexatitanate whisker and 3-8 parts of an auxiliary agent. The above-mentioned documents have advantages and disadvantages of the added antifriction components, and after the antifriction components are added, they inevitably have adverse effects on some properties of the composite material, for example, polytetrafluoroethylene has the lowest friction coefficient among all the antiwear agents, has better lubricity and wear resistance, and is the best antiwear additive in high-load applications, but polytetrafluoroethylene has no reinforcing property, and after the addition, the physical and mechanical properties of the material are reduced, thereby affecting the application of the material. The glass fiber material has a high wear rate, poor water-binding property and an unstable high-temperature friction coefficient.
Disclosure of Invention
The invention aims to provide a wear-resistant reinforced nylon material and a preparation method thereof, which have the characteristics of good wear-resistant effect, good high temperature resistance, high dimensional stability, high impact strength and the like.
The invention adopts the following technical scheme that:
the wear-resistant reinforced nylon material is characterized by comprising the following raw materials in parts by weight: 42-67 parts of nylon, 4-10 parts of surface activated ultra-high molecular weight polyethylene, 20-30 parts of chopped glass fiber, 5-10 parts of magnesium sulfate whisker, 2-5 parts of compatilizer and 2-3 parts of assistant;
the nylon is PA6, PA66 or a mixture thereof, the relative viscosity is 2.5-2.9, and preferably the relative viscosity is 2.7;
the surface activated ultra-high molecular weight polyethylene is ultra-high molecular weight polyethylene micro powder modified by low-temperature plasma surface activation and chemical grafting, and the number average molecular weight is more than or equal to 100 ten thousand;
the chopped glass fiber is untwisted chopped glass fiber, the diameter of a single filament is 10-15 mu m, and the length of the single filament is 3-4.5 mm;
the average diameter of the magnesium sulfate whisker is 0.4-10 mu m, and the length-diameter ratio is 20-40;
the compatilizer is maleic anhydride grafted SEBS (SEBS-g-MAH), and the grafting rate is 1-2%;
the processing aid comprises one or more than two of an antioxidant, an ultraviolet light resistant absorber and a lubricant.
The preparation method of the wear-resistant reinforced nylon material is characterized by comprising the following steps: adding the nylon, the surface-activated ultrahigh molecular weight polyethylene, the compatilizer and the processing aid into a high-speed mixer, and uniformly stirring and mixing to obtain a mixture; adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, feeding the chopped glass fibers and the magnesium sulfate whiskers from a side feeding port, extruding after melt blending, cooling, and pelletizing to obtain the wear-resistant reinforced nylon material;
the temperatures in the zones of the twin-screw extruder were as follows: the temperature of a first area is 150-230 ℃, the temperature of a second area is 180-265 ℃, the temperature of a third area is 190-275 ℃, the temperature of a fourth area is 200-280 ℃, the temperature of a fifth area is 200-280 ℃, the temperature of a sixth area is 200-280 ℃, and the temperature of a machine head is 240-265 ℃; and (5) starting vacuum, and controlling the rotating speed of the screw to be 250-350 r/min.
Compared with the prior art, the invention has the advantages that:
the surface-activated ultrahigh molecular weight polyethylene is used as the wear-resisting agent, so that the wear-resisting agent has excellent self-lubricating property, higher polarity and surface energy, and better compatibility with nylon, can more obviously reduce the friction coefficient of the nylon, and solves the problem of stick-slip of the nylon; the blending reinforcing agent of the glass fiber and the magnesium sulfate whisker and the SEBS-g-MAH compatilizer can improve the mechanical property and have the characteristics of high temperature resistance, high dimensional stability, high impact strength and the like; the preparation method has the advantages of simple process, low investment, low energy consumption, high efficiency and obvious economic and social benefits.
Detailed Description
The invention is further illustrated by the following specific examples, which are intended to be illustrative only and not limiting.
The relevant commercial or supplier-supplied starting materials were specifically employed in this example and comparative examples.
Nylon 66EPR27: hippocampus engineering plastics, inc., relative viscosity of 2.7; surface-activated ultra high molecular weight polyethylene ATT-UPE 050: nanjing Teng-Yi New Material science and technology Co., ltd, D5053um, molecular weight 500-800 ten thousand; glass fiber ESC10-03-568H/A: china giant Stone Ltd, diameter 10um, length 3mm; magnesium sulfate whisker ws-1s2: yingkoukang (Yingkoukang) with a scientific limited length-diameter ratio of 20; SEBS-g-MAH: FG1901, kraton, usa, with a grafting rate of 1.5%; the auxiliary agent is antioxidant 1098: basf, germany, antioxidant 168: beijing very easily chemical Co., ltd, lubricant EBS: the King of Japan flowers.
Example 1
The wear-resistant reinforced nylon material comprises the following raw materials in parts by weight: 68 parts of nylon, 4 parts of surface activated ultra-high molecular weight polyethylene, 20 parts of chopped glass fiber, 5 parts of magnesium sulfate whisker, 5.3 parts of compatilizer SEBS-g-MAH 2, 10980.3 parts of antioxidant, 1680.2 part of antioxidant and 0.5 part of lubricant EBS; are shown in Table 1.
The preparation method comprises the following steps:
adding nylon, surface-activated ultra-high molecular weight polyethylene, a compatilizer and a processing aid into a high-speed mixer, and stirring and mixing for 20min to be uniform to obtain a mixture; adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, feeding the chopped glass fibers and the magnesium sulfate whiskers from a side feeding port, and controlling the temperature of each zone of the double-screw extruder as follows: the temperature of a first area is 180 ℃, the temperature of a second area is 200 ℃, the temperature of a third area is 220 ℃, the temperature of a fourth area is 220 ℃, the temperature of a fifth area is 230 ℃, the temperature of a sixth area is 240 ℃ and the temperature of a machine head is 245 ℃; and controlling the rotation speed of the screw to be 300r/min, starting vacuum, melting, blending, extruding, cooling and granulating to obtain the wear-resistant reinforced nylon material.
TABLE 1 raw material compositions of examples 1 to 4 and comparative examples 1 to 3
Example 2
The wear-resistant reinforced nylon material comprises the following raw materials in parts by weight: 60 parts of nylon, 6 parts of surface-activated ultrahigh molecular weight polyethylene, 25 parts of glass fiber, 5 parts of magnesium sulfate whisker, 3 parts of compatilizer, 80.3 parts of antioxidant 109, 1680.2 part of antioxidant and 0.5 part of lubricant EBS; are shown in Table 1.
The preparation method comprises the following steps:
adding nylon, surface-activated ultra-high molecular weight polyethylene, a compatilizer and a processing aid into a high-speed mixer, and stirring and mixing for 20min to be uniform to obtain a mixture; adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, wherein the glass fiber and the magnesium sulfate whisker are fed from a side feeding port, the temperature of a first zone is 200 ℃, the temperature of a second zone is 210 ℃, the temperature of a third zone is 220 ℃, the temperature of a fourth zone is 240 ℃, the temperature of a fifth zone is 240 ℃, the temperature of a sixth zone is 245 ℃, and the temperature of a machine head is 255 ℃; and controlling the rotating speed of the screw to be 350r/min, starting vacuum, melting, blending, extruding, cooling and granulating to obtain the wear-resistant reinforced nylon material.
Example 3
The wear-resistant reinforced nylon material comprises the following raw materials in parts by weight: 58 parts of nylon, 8 parts of surface activated ultra-high molecular weight polyethylene, 25 parts of glass fiber, 5 parts of magnesium sulfate whisker, 3 parts of compatilizer, 80.3 parts of antioxidant 109, 1680.2 part of antioxidant and 0.5 part of lubricant EBS; are shown in Table 1.
The preparation method comprises the following steps:
adding nylon, surface-activated ultra-high molecular weight polyethylene, a compatilizer and a processing aid into a high-speed mixer, and stirring and mixing for 20min to be uniform to obtain a mixture; adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, wherein the glass fiber and the magnesium sulfate whisker are fed from a side feeding port, the temperature of a first zone is 190 ℃, the temperature of a second zone is 210 ℃, the temperature of a third zone is 215 ℃, the temperature of a fourth zone is 240 ℃, the temperature of a fifth zone is 230 ℃, the temperature of a sixth zone is 245 ℃, and the temperature of a machine head is 250 ℃; and controlling the rotating speed of the screw to be 350r/min, starting vacuum, melting, blending, extruding, cooling and granulating to obtain the wear-resistant reinforced nylon material.
Example 4
The wear-resistant reinforced nylon material comprises the following raw materials in parts by weight: 43 parts of nylon, 10 parts of surface-activated ultrahigh molecular weight polyethylene, 30 parts of glass fiber, 10 parts of magnesium sulfate whisker, 5 parts of compatilizer, 80.6 parts of antioxidant 109, 1680.4 part of antioxidant and 1 part of lubricant EBS; are shown in Table 1.
The preparation method comprises the following steps:
adding nylon, surface-activated ultra-high molecular weight polyethylene, a compatilizer and a processing aid into a high-speed mixer, and stirring and mixing for 20min to be uniform to obtain a mixture; adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, wherein the glass fiber and the magnesium sulfate whisker are fed from a side feeding port, the temperature of a first zone is 210 ℃, the temperature of a second zone is 210 ℃, the temperature of a third zone is 220 ℃, the temperature of a fourth zone is 230 ℃, the temperature of a fifth zone is 240 ℃, the temperature of a sixth zone is 245 ℃, and the temperature of a machine head is 265 ℃; and controlling the rotating speed of the screw to be 350r/min, starting vacuum, melting, blending, extruding, cooling and granulating to obtain the wear-resistant reinforced nylon material.
Comparative example 1
Comparative example 1 is a comparative example of example 1, comprising the following raw materials in parts by weight: 79 parts of nylon, 20 parts of glass fiber, 10980.3 parts of antioxidant, 1680.2 part of antioxidant and 0.5 part of lubricant EBS; the specific preparation method is the same as that of example 1.
Comparative example 2
Comparative example 2 is a comparative example of example 2, comprising the following raw materials in parts by weight: 66 parts of nylon, 25 parts of glass fiber, 5 parts of magnesium sulfate whisker, 3 parts of compatilizer, 10980.3 parts of antioxidant, 1680.2 part of antioxidant and 0.5 part of lubricant EBS; the specific preparation method is the same as that of example 2.
Comparative example 3
Comparative example 3 is a comparative example of example 4, comprising the following raw materials in parts by weight: 53 parts of nylon, 10 parts of surface-activated ultrahigh molecular weight polyethylene, 30 parts of glass fiber, 5 parts of compatilizer, 80.6 parts of antioxidant 109, 680.4 parts of antioxidant and 1 part of lubricant EBS; the specific preparation method is the same as example 4.
The wear-resistant reinforced nylon materials prepared in the above examples 1 to 4 and comparative examples 1 to 3 were tested for tensile strength, flexural modulus, notched impact strength, warp degree, friction coefficient, and abrasion loss according to ISO standards, and the test results are listed in table 1.
TABLE 2 test results of examples 1 to 4 and comparative examples 1 to 3
As can be seen from table 1, compared with comparative example 1, the material of example 1, to which the surface-activated ultrahigh molecular weight polyethylene, the magnesium sulfate whisker and the compatibilizer are added, has good mechanical properties, improves wear resistance, and reduces warpage. Compared with the comparative example 2, the wear resistance is obviously improved by adding the surface activated ultra-high molecular weight polyethylene in the examples 2 to 3, and the friction coefficient and the wear loss are the lowest when 8 parts of the surface activated ultra-high molecular weight polyethylene are added. Compared with the comparative example 3, the magnesium sulfate whisker of the example 4 has obvious improvement on warpage.
Claims (7)
1. The wear-resistant reinforced nylon material is characterized by comprising the following raw materials in parts by weight: 42-67 parts of nylon, 4-10 parts of surface activated ultra-high molecular weight polyethylene, 20-30 parts of chopped glass fiber, 5-10 parts of magnesium sulfate whisker, 2-5 parts of compatilizer and 2-3 parts of auxiliary agent.
2. The abrasion-resistant reinforced nylon material according to claim 1, wherein the nylon is PA6, PA66 or a mixture thereof, and the relative viscosity is 2.5-2.9.
3. The wear-resistant reinforced nylon material as claimed in claim 1, wherein the surface-activated ultra-high molecular weight polyethylene is ultra-high molecular weight polyethylene micropowder modified by low-temperature plasma surface activation and chemical grafting, and the number average molecular weight is not less than 100 ten thousand.
4. The wear-resistant reinforced nylon material as claimed in claim 1, wherein the chopped glass fiber is untwisted chopped glass fiber, the monofilament diameter is 10-15 μm, and the length is 3-4.5 mm; the magnesium sulfate whisker has an average diameter of 0.4-10 μm and an aspect ratio of 20-40.
5. The wear-resistant reinforced nylon material as recited in claim 1, wherein the compatibilizer is maleic anhydride grafted SEBS, and the grafting ratio is 1-2%; the processing aid comprises one or more than two of an antioxidant, an ultraviolet-resistant absorbent and a lubricant.
6. The method for preparing the wear-resistant reinforced nylon material as claimed in claim 1, which is characterized by comprising the following steps: adding the nylon, the surface-activated ultrahigh molecular weight polyethylene, the compatilizer and the processing aid into a high-speed mixer, and uniformly stirring and mixing to obtain a mixture; and adding the mixture into a main feeding port of a co-rotating double-screw extruder for feeding, feeding the chopped glass fibers and the magnesium sulfate whiskers from a side feeding port, extruding after melt blending, cooling, and pelletizing to obtain the wear-resistant reinforced nylon material.
7. The method for preparing the abrasion-resistant reinforced nylon material as claimed in claim 6, wherein the temperatures of all the zones of the twin-screw extruder are as follows: the temperature of a first area is 150-230 ℃, the temperature of a second area is 180-265 ℃, the temperature of a third area is 190-275 ℃, the temperature of a fourth area is 200-280 ℃, the temperature of a fifth area is 200-280 ℃, the temperature of a sixth area is 200-280 ℃, and the temperature of a machine head is 240-265 ℃; and (5) starting vacuum, and controlling the rotating speed of the screw to be 250-350 r/min.
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- 2022-12-12 CN CN202211592048.7A patent/CN115819966A/en active Pending
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| CN107501920A (en) * | 2016-06-14 | 2017-12-22 | 合肥杰事杰新材料股份有限公司 | It is a kind of to improve composition of fiberglass reinforced PA 6 for floating fine phenomenon and preparation method thereof |
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