CN102898825B - UHMWPE/PA66 (Ultra High Molecular Weight Polyethylene/Polyamide 66) injection molding wear-resistant alloy and preparation method as well as application thereof - Google Patents
UHMWPE/PA66 (Ultra High Molecular Weight Polyethylene/Polyamide 66) injection molding wear-resistant alloy and preparation method as well as application thereof Download PDFInfo
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- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 title claims abstract description 73
- 229920002302 Nylon 6,6 Polymers 0.000 title claims abstract description 70
- 238000001746 injection moulding Methods 0.000 title claims abstract description 60
- 239000000956 alloy Substances 0.000 title claims abstract description 51
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 5
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract 22
- 239000000843 powder Substances 0.000 claims abstract description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 229920002545 silicone oil Polymers 0.000 claims abstract description 12
- 229920010741 Ultra High Molecular Weight Polyethylene (UHMWPE) Polymers 0.000 claims description 57
- 229960001866 silicon dioxide Drugs 0.000 claims description 12
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 23
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract 1
- 239000012778 molding material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 238000005299 abrasion Methods 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 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 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 3
- 239000003082 abrasive agent Substances 0.000 description 3
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- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
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- 239000002184 metal Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
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- 239000003831 antifriction material Substances 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a UHMWPE/PA66 (Ultra High Molecular Weight Polyethylene/Polyamide 66) injection molding wear-resistant alloy and a preparation method as well as application thereof. The UHMWPE/PA66 injection molding wear-resistant alloy is prepared from the following components in parts by weight: 50-90 parts of PA66, 6-40 parts of UHMWPE, 1.5-5 parts of compatibilizer, 1-3.5 parts of silicone oil and 1 part of silica gel powder, wherein the density of the UHMWPE is 0.91-0.96 g/cm<3>, and the molecular weight of the UHMWPE is 200-900 ten thousands. The UHMWPE has the characteristics of good self-lubrication, small wear, superior wear resistance performance, prominent impact resistance performance but poor other mechanical properties; the PA66 is a high-toughness material and has the superior performance such as creep resistance and plastic deformation resistance, but has high wear and friction coefficient value; and the UHMWPE/PA66 injection molding wear-resistant alloy has the advantages of capabilities of improving the respective defects of the two materials and integrating the performance advantages of the alloy and wider application range. The UHMWPE/PA66 injection molding wear-resistant alloy can also be applied to an injection molding material, and the requirement of a product with a complex structure on injection molding can be met.
Description
Technical field
The invention belongs to high molecule alloy material field, be specifically related to a kind of UHMWPE/PA66 injection moulding wear resistant alloy and its production and use, this UHMWPE/PA66 injection moulding can be used for preparing with wear resistant alloy the high abrasion goods that requires injection moulding in automaticmachines equipment.
Background technology
Traditional polymkeric substance antifriction material by polytetrafluoroethylene (PTFE), ultrahigh molecular weight polyethylene(UHMWPE) (UHMWPE), polymeric amide or its material modified etc. composition, has relevant research to the wear resisting property of these three kinds of materials both at home and abroad conventionally.For first two material, because of the special property of its material itself, make their processing difficulties, thereby forming method there is certain limitation; The crocking resistance of polymeric amide is not as first two material, and it is applied in the not too high goods of wear-resisting requirement more.
Ultrahigh molecular weight polyethylene(UHMWPE) has the performances such as excellent shock resistance, wear-resistant, self-lubricating, resistance to chemical attack, because it is at the outstanding properties aspect rub resistance, anti-attrition consumption, ultrahigh molecular weight polyethylene(UHMWPE) is widely used, its forming method mostly is compacting-sintering, extrudes, comparatively limitation, and the fatigue performance of pure ultra-high molecular mass polyethylene product is poor.The modification of ultrahigh molecular weight polyethylene(UHMWPE) is generally inorganic powder and fills, and also may cause the viscous deformation of material, and the antifriction effect of product in different environments for use is unstable.
Less for the correlative study of UHMWPE/PA66 alloy aspect both at home and abroad, and these a small amount of researchs only relate to its alloy mechanical property and structure aspects, and research direction is comparatively limited to.In addition, the consistency of UHMWPE/PA66 alloy is poor is also the problem that needs solve.
Summary of the invention
In order to overcome the problem that existing rub resistance high polymer material frictional coefficient is large, wear resisting property is not good, shaping efficiency is low, primary and foremost purpose of the present invention is to provide a kind of new rub resistance material, it is a kind of UHMWPE/PA66 injection moulding wear resistant alloy, this UHMWPE/PA66 injection moulding has with wear resistant alloy that good self lubricity, frictional coefficient are little, abrasion performance, cost is moderate, can be used for injection moulding, and shaping efficiency is high, is suitable for making various rub resistance goods.
Another object of the present invention is to provide the preparation method of above-mentioned UHMWPE/PA66 injection moulding wear resistant alloy, the method is easy to realize, can suitability for industrialized production.
A further object of the present invention is to provide the purposes of above-mentioned UHMWPE/PA66 injection moulding wear resistant alloy.
Object of the present invention is achieved through the following technical solutions:
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, its raw materials comprises the composition of following parts by weight:
PA66:50 ~ 90 part
UHMWPE:6 ~ 40 part
Compatilizer: 1.5 ~ 5 parts
Silicone oil: 1 ~ 3.5 part
Silica-gel powder: 1 part.
Described PA66, its fusing point is 254 ~ 269 DEG C, and its vicat softening temperature is 200 ~ 240 DEG C, and its Taibo wear loss is 5 ~ 10.
Described UHMWPE, its density is 0.91 ~ 0.96g/cm
3, its molecular weight is 200 ~ 9,000,000.
Described compatilizer is the compatilizer of maleic anhydride graft, and it has good consistency.
Described silicone oil, viscosity is 500 ~ 2000mm
2/ s, surface tension is 20 ~ 22dyn/cm, such silicone oil is the good distribution agent of pressed powder.
Described silica-gel powder, its mean pore size is 50 ~ 120A, specific surface area is 200 ~ 550m
2/ g, granularity is 100 ~ 400 orders.
Described UHMWPE/PA66 injection moulding wear resistant alloy, its raw materials also comprises antioxidant, taking the silica-gel powder of 1 weight part as benchmark, the add-on of antioxidant is 0.5 ~ 2 part;
Described antioxidant, can adopt antioxidant conventional in plastics, as antioxidant 1010 and antioxidant 168.
The preparation method of wear resistant alloy for above-mentioned UHMWPE/PA66 injection moulding, comprises the following steps:
After raw material is mixed, drop in forcing machine and melt extrude granulation, obtain UHMWPE/PA66 injection moulding wear resistant alloy;
The feeding parameter of forcing machine is 15 ~ 30Hz, and bolt rotary parameter is 18 ~ 32Hz, and barrel zone temperature is 230 ~ 270 DEG C; The rotating speed of stock cutter is 400 ~ 800rpm.
Above-mentioned UHMWPE/PA66 injection moulding can be made various rub resistance goods by injection moulding with wear resistant alloy, and its injection molding forming method comprises the following steps:
After granular UHMWPE/PA66 injection moulding is dry with wear resistant alloy, drop into injection moulding in injection moulding machine, make rub resistance goods;
Described dry be at 80 ~ 90 DEG C dry 5 ~ 8 hours;
The temperature and pressure of described injection moulding machine is set to:
Barrel rear portion: 230 ~ 270 DEG C;
Barrel middle part: 250 ~ 290 DEG C;
Barrel front portion: 250 ~ 290 DEG C;
Nozzle: 260 ~ 280 DEG C;
Die temperature: 60 ~ 90 DEG C.
Injection pressure: 60 ~ 200Mpa.
The present invention has following advantage and effect with respect to prior art:
(1) the UHMWPE/PA66 injection moulding of this patent combines the advantage of UHMWPE and PA66 bi-material with wear resistant alloy material: UHMWPE self lubricity is good, wear away little, wear-resisting poor superior performance, shock resistance is outstanding, but other mechanical properties are poor; PA66 is obdurability material, the superior performances such as creep-resistant property, plasticity_resistant deformation, but abrasion and friction co-efficient value are larger; UHMWPE/PA66 injection moulding has improved this bi-material defect separately with wear resistant alloy, combines its feature performance benefit, makes its applicability wider.
(2) the UHMWPE/PA66 injection moulding of this patent is the material that can be applicable to injection moulding with wear resistant alloy, can meet the goods with complex construction for the requirement of injection moulding.High-abrasive material is widely used, and its article construction is also varied, the goods that traditional extrude, die cast are unfavorable for production structure complexity, and UHMWPE/PA66 injection moulding has realized this with wear resistant alloy may.
(3) often raw material costliness, cost are high as high-abrasive materials such as single UHMWPE, compound PTFE material, inorganic particle filled modifications for traditional high-abrasive material, UHMWPE/PA66 injection moulding has reduced cost with wear resistant alloy, and its good processibility has improved production efficiency, is more conducive to suitability for industrialized production.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Umber related in following examples is parts by weight.
Embodiment 1
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, is prepared by following methods:
By 254 DEG C of 90 parts of PA66(fusing points, 240 DEG C of vicat softening temperatures, Taibo wear loss 5), 6 parts of UHMWPE(density 0.91g/cm
3, molecular weight 9,000,000), 1.5 parts of compatilizer maleic anhydride graft PE, 1 part of silicone oil (viscosity 500mm
2/ s, surface tension 22dyn/cm), 1 part of silica-gel powder (mean pore size 50A, specific surface area 550m
2/ g, granularity 100 orders) and 0.5 part of antioxidant 168 drop in homogenizer, batch mixing 3 minutes is extruded, granulation in melt temperature is the twin screw extruder of 230 ~ 270 DEG C, obtains UHMWPE/PA66 injection moulding wear resistant alloy.
Embodiment 2
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, is prepared by following methods:
By 258 DEG C of 80 parts of PA66(fusing points, 230 DEG C of vicat softening temperatures, Taibo wear loss 6), 15 parts of UHMWPE(density 0.93g/cm
3, molecular weight 7,000,000), 2 parts of compatilizer maleic anhydride graft PE, 1.5 parts of silicone oil (viscosity 800mm
2/ s, surface tension 21dyn/cm), 1 part of silica-gel powder (mean pore size 60A, specific surface area 450m
2/ g, granularity 200 orders) and 0.5 part of antioxidant 1010 drop in homogenizer, batch mixing 3 minutes is extruded, granulation in melt temperature is the twin screw extruder of 230 ~ 270 DEG C, obtains UHMWPE/PA66 injection moulding wear resistant alloy.
Embodiment 3
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, is prepared by following methods:
By 265 DEG C of 70 parts of PA66(fusing points, 210 DEG C of vicat softening temperatures, Taibo wear loss 8), 25 parts of UHMWPE(density 0.94g/cm
3, molecular weight 5,000,000), 2 parts of compatilizer maleic anhydride graft PE, 1.5 parts of silicone oil (viscosity 1000mm
2/ s, surface tension 20dyn/cm), 1 part of silica-gel powder (mean pore size 80A, specific surface area 350m
2/ g, granularity 250 orders) and 0.5 part of antioxidant 168 drop in homogenizer, batch mixing 3 minutes is extruded, granulation in melt temperature is the twin screw extruder of 230 ~ 270 DEG C, obtains UHMWPE/PA66 injection moulding wear resistant alloy.
Embodiment 4
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, is prepared by following methods:
By 260 DEG C of 60 parts of PA66(fusing points, 220 DEG C of vicat softening temperatures, Taibo wear loss 7), 33 parts of UHMWPE(density 0.95g/cm
3, molecular weight 4,000,000), 3 parts of compatilizer maleic anhydride graft PE, 2.5 parts of silicone oil (viscosity 1500mm
2/ s, surface tension 22dyn/cm), 1 part of silica-gel powder (mean pore size 100A, specific surface area 250m
2/ g, granularity 300 orders) and 0.5 part of antioxidant 1010 drop in homogenizer, batch mixing 3 minutes is extruded, granulation in melt temperature is the twin screw extruder of 230 ~ 270 DEG C, obtains UHMWPE/PA66 injection moulding wear resistant alloy.
Embodiment 5
A kind of UHMWPE/PA66 injection moulding wear resistant alloy, is prepared by following methods:
By 269 DEG C of 50 parts of PA66(fusing points, 200 DEG C of vicat softening temperatures, Taibo wear loss 10), 40 parts of UHMWPE(density 0.96g/cm
3, molecular weight 2,000,000), 5 parts of compatilizer maleic anhydride graft PE, 3.5 parts of silicone oil (viscosity 2000mm
2/ s, surface tension 20dyn/cm), 1 part of silica-gel powder (mean pore size 120A, specific surface area 200m
2/ g, granularity 400 orders) and 0.5 part of antioxidant 168 drop in homogenizer, batch mixing 3 minutes is extruded, granulation in melt temperature is the twin screw extruder of 230 ~ 270 DEG C, obtains UHMWPE/PA66 injection moulding wear resistant alloy.
Performance evaluation mode and implementation standard.
The particulate material that completes granulation in above-described embodiment 1 ~ 5 is put into convection oven and be dried 5 ~ 8 hours with 90 DEG C, then dry granular material injection moulding on injection moulding machine is made to standard batten, in sample making course, keep mould temperature at 60 ~ 90 DEG C.In addition, get respectively 269 DEG C of PA66(fusing points, 200 DEG C of vicat softening temperatures, Taibo wear loss 10) and UHMWPE(density 0.96g/cm
3, molecular weight 5,000,000), also make standard batten according to aforesaid method, in contrast.
Tensile bars is tested by GB/T 1040 standards, and specimen types is I type, batten size (mm): 170 × (20 ± 0.2) × (4 ± 0.2), and draw speed is 50mm/min; Flexural strength and modulus in flexure are tested according to GB9431/T standard, and specimen size is: (80 ± 2) × (10 ± 0.2) × (4 ± 0.2), rate of bending is 20mm/min.Assay is in table 1.
Table 1: the composition of embodiment material and control group and Some Mechanical Properties
| Composition (part) | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | PA66 | UHMWPE |
| PA66 | 90 | 80 | 70 | 60 | 50 | 100 | |
| UHMWPE | 6 | 15 | 25 | 33 | 40 | 100 | |
| Compatilizer | 1.5 | 2 | 2 | 3 | 5 | ||
| Silicone oil | 1 | 1.5 | 1.5 | 2.5 | 3.5 | ||
| Silica-gel powder | 1 | 1 | 1 | 1 | 1 | ||
| Antioxidant | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | ||
| Tensile strength | 66 | 59 | 53 | 46 | 38 | 76 | 18 |
| Flexural strength | 76 | 70 | 62 | 54 | 49 | 83 | |
| Modulus in flexure | 2600 | 2300 | 1900 | 1750 | 1320 | 3100 |
As can be seen from Table 1, in embodiment 1-5, along with the variation of UHMWPE and PA66 proportioning, material mechanical performance also changes to some extent, the UHMWPE/PA66 alloy obtaining by modification, the over-all properties of material is improved, and can meet the demand of Shooting Technique, change the defect that single UHMWPE cannot adopt Shooting Technique to process, make the wear resisting property of PA66 be improved simultaneously, reduced frictional coefficient, the anti-creep-resistant property of material etc. all increases.
The material of embodiment 1 ~ 5 is put into convection oven and be dried 5 ~ 8 hours with 90 DEG C, again dry granular material injection moulding on injection moulding machine being made to size (mm) is: the sample of 170 × (30 ± 0.2) × (6 ± 0.2), keeps mould temperature at 60 ~ 90 DEG C in sample making course.In addition, get respectively 269 DEG C of PA66(fusing points, 200 DEG C of vicat softening temperatures, Taibo wear loss 10) and UHMWPE(density 0.96g/cm
3, molecular weight 5,000,000), also make standard batten according to aforesaid method, in contrast.
Batten is carried out to metal to-metal contact experiment, the rated load of 980N is applied on sample and fixed sample, make sample operation of the smooth guide taking the speed of 200mm/s along length as 700mm under load, record kinetic friction coefficient, the abrasion data of every day, monitor the frictional behaviour of embodiment with this.Testing circumstance in test is room temperature, moves 600,000 times; Abrasion are the sample quality variable quantity of 600,000 front and back of operation, i.e. abrasion=quality before quality-test after testing.Test result is in table 2.
Table 2: the frictional behaviour of embodiment material and control group material
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | PA66 | UHMWPE | |
| Abrasion (unit: g) | -0.43 | -0.51 | -0.62 | -0.81 | -0.95 | -6.56 | -0.61 |
| Kinetic friction coefficient | 0.062 | 0.048 | 0.047 | 0.043 | 0.042 | 0.12 | 0.076 |
As can be seen from Table 2, obtain the kinetic friction coefficient of different stage and the material of wear-resisting grade by the UHMWPE/PA66 alloy of different proportionings, compared with UHMWPE, PA66, kinetic friction coefficient no matter, and abrasion be all greatly improved, can meet different kinetic friction coefficient and abrasion require application occasion.
Embodiment 1 ~ 3 is applicable to medium friction velocity, and the mechanical property of materials is had relatively high expectations, and the occasion that bearing capacity is larger, as heavily loaded cage guide etc.
Embodiment 4 ~ 5 is applicable in the friction device of low speed underloading, require low abrasion, the occasion of low-friction coefficient.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (8)
1. a UHMWPE/PA66 injection moulding wear resistant alloy, is characterized in that: its raw materials comprises the composition of following parts by weight:
PA66:50 ~ 90 part
Ultrahigh molecular weight polyethylene(UHMWPE): 6 ~ 40 parts
Compatilizer: 1.5 ~ 5 parts
Silicone oil: 1 ~ 3.5 part
Silica-gel powder: 1 part;
Described ultrahigh molecular weight polyethylene(UHMWPE), its density is 0.91 ~ 0.96g/cm
3, its molecular weight is 200 ~ 9,000,000.
2. UHMWPE/PA66 injection moulding wear resistant alloy according to claim 1, is characterized in that: the compatilizer that described compatilizer is maleic anhydride graft.
3. UHMWPE/PA66 injection moulding wear resistant alloy according to claim 1, is characterized in that: described silicone oil, viscosity is 500 ~ 2000mm
2/ s, surface tension is 20 ~ 22dyn/cm.
4. UHMWPE/PA66 injection moulding wear resistant alloy according to claim 1, is characterized in that: described silica-gel powder, and its mean pore size is 50 ~ 120 dusts, specific surface area is 200 ~ 550m
2/ g, granularity is 100 ~ 400 orders.
5. UHMWPE/PA66 injection moulding wear resistant alloy according to claim 1, it is characterized in that: described UHMWPE/PA66 injection moulding wear resistant alloy, its raw materials also comprises antioxidant, and taking the silica-gel powder of 1 weight part as benchmark, the add-on of antioxidant is 0.5 ~ 2 part.
6. the preparation method of wear resistant alloy for the UHMWPE/PA66 injection moulding described in claim 1-5 any one, is characterized in that comprising the following steps: after raw material is mixed, drop in forcing machine and melt extrude granulation, obtain UHMWPE/PA66 injection moulding wear resistant alloy.
7. the application in rub resistance goods with wear resistant alloy of the UHMWPE/PA66 injection moulding described in claim 1-5 any one.
8. UHMWPE/PA66 injection moulding according to claim 7 application in rub resistance goods with wear resistant alloy, is characterized in that: the UHMWPE/PA66 injection moulding wear resistant alloy described in claim 1-5 any one is made to various rub resistance goods by injection moulding.
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| CN106046778A (en) * | 2016-07-01 | 2016-10-26 | 宁夏宝塔石化科技实业发展有限公司 | Ultra high molecular weight polyethylene modified nylon bearing holding rack |
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| CN1607219A (en) * | 2003-10-14 | 2005-04-20 | 林安良 | High self-lubricating, high wear resisting, reinforced nylon engineering plastic alloy and method for making same |
| CN101760021A (en) * | 2009-11-27 | 2010-06-30 | 平顶山华邦工程塑料有限公司 | Nylon 66 compound capable of use for weaving glass-fiber-free shuttle |
| CN102532868A (en) * | 2011-12-30 | 2012-07-04 | 杭州临安宏凯工程塑料有限公司 | Polyamide composite material, and preparation method and application thereof |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607219A (en) * | 2003-10-14 | 2005-04-20 | 林安良 | High self-lubricating, high wear resisting, reinforced nylon engineering plastic alloy and method for making same |
| CN101760021A (en) * | 2009-11-27 | 2010-06-30 | 平顶山华邦工程塑料有限公司 | Nylon 66 compound capable of use for weaving glass-fiber-free shuttle |
| CN102532868A (en) * | 2011-12-30 | 2012-07-04 | 杭州临安宏凯工程塑料有限公司 | Polyamide composite material, and preparation method and application thereof |
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