CN110105753A - A kind of trolley case castor carbon fiber enhancing nylon composite materials and preparation method thereof - Google Patents
A kind of trolley case castor carbon fiber enhancing nylon composite materials and preparation method thereof Download PDFInfo
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- CN110105753A CN110105753A CN201910220894.8A CN201910220894A CN110105753A CN 110105753 A CN110105753 A CN 110105753A CN 201910220894 A CN201910220894 A CN 201910220894A CN 110105753 A CN110105753 A CN 110105753A
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- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
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Abstract
The present invention relates to nylon composite materials technical fields more particularly to a kind of trolley case castor carbon fiber to enhance nylon composite materials and preparation method thereof.This nylon composite materials are according to mass parts, including 35-45 parts of PA, and 5-10 parts of hollow glass bead, 10-15 parts of activated carbon fiber, solubilizer 5-10 parts of interface, 3-5 parts of nano aluminium oxide and 0.7-2 parts of auxiliary agent.It has the characteristics that high tenacity, abrasion resistance properties are good, easy processing.
Description
Technical field
It is multiple with carbon fiber enhanced nylon that the present invention relates to nylon composite materials technical fields more particularly to a kind of trolley case castor
Condensation material and preparation method thereof.
Background technique
Trolley case castor system material (containing bracket and castor) is all produced both at home and abroad with enhancing nylon.Nylon mainly passes through
Fibre modification can significantly improve the resistance to acid and alkali and physical mechanical property of nylon, keep its scope of application wider, therefore fiber changes
Property nylon has great importance.Enhancing nylon includes glass fiber reinforcement class/fibre reinforced class/basalt fibre enhancing class
And aramid fiber enhances class.Wherein based on glass fibre and fibre reinforced class, glass fibre reinforced nylon is with polymer
For matrix, composite material is made using glass fibre as reinforcing material, combines the performance of polymer and glass fibre, has strong
Spend the advantages that high, corrosion-resistant, heat-insulated, inprocess shrinkage is small.With developing by leaps and bounds for application market, glass fibre reinforced nylon is mentioned
Higher requirement out.The country has carried out a large amount of theoretical research and product development to glass fiber reinforced nylon material, the glass from matrix
Fine content, glass size, the dispersibility of glass, the bonding degree of glass and nylon base-material, various auxiliary agents proper use of and
The different aspect such as the adjustment of process conditions is studied, and progress is achieved, but in intensity, the dimensional stability for improving nylon
It is obtained outside breakthrough with water absorption rate is reduced, also brings a series of problem, such as: when glass fiber content is more than a certain amount of, compound system
Melt viscosity increase, not only cause machine-shaping difficult, but also to be easy to appear glass emergence on the surface, rough surface etc. bad existing for product
As in addition to the above unfavorable condition, also there is the increase of accessory weight, therefore develop when applying in trolley case castor system accessories
High-performance, the enhancing nylon of high-quality are imperative.
Carbon fiber modifying nylon material develops comparatively fast in recent years, because nylon and carbon fiber are all that respective field is had excellent performance
Material, the superiority that composite material is comprehensive both to be embodied, carbon fiber has that light, tensile strength is high, wear-resistant, corrosion resistant
Erosion, creep resistant, conduction, it is thermally conductive the features such as, compared with glass fibre, modulus is 3-5 times high, thus be a kind of acquisition high rigidity and
The excellent reinforcing material of high-strength nylon material, it is external at present to mostly use nylon 6 or 66 as basis material greatly, with chopped or long
Carbon fiber has studied its bending of the carbon fiber of addition 20% as reinforcing material, such as Wilson-Fibertil international corporation, the U.S.
Intensity is identical as the fiber glass reinforcement of addition 40%.Also relevant research and test, a large number of experiments knot have been carried out in the country
Fruit shows: carbon fiber reinforced nylon can make the tensile strengths of nylon composite materials, bending strength, bending modulus, surface hardness,
Wearability increases, is heat-resist, and friction factor is small, light-weight to wait number of advantages, but carbon fibre reinforcement also has its disadvantage,
Such as: at high cost, processability is bad, surface smoothness is not high.Therefore high-performance, the carbon fiber of the easily molded processing of moderate cost are developed
Dimension enhancing nylon composite materials are a developing directions of modifying plastics industry.
Summary of the invention
The invention solves the above problem, provide that a kind of high tenacity, abrasion resistance properties are good, trolley case castor of easy processing is used
Carbon fiber enhances nylon composite materials and preparation method thereof.
The technical solution that the present invention solves the problems, such as is to provide a kind of trolley case castor carbon fiber enhancing nylon composite materials,
According to mass parts, including 35-45 parts of PA, 5-10 parts of hollow glass bead, 10-15 parts of activated carbon fiber, interface solubilizer 5-10
Part, 3-5 parts of nano aluminium oxide and 0.7-2 parts of auxiliary agent.
Preferably, the auxiliary agent includes 0.1-0.5 parts of heat stabilizer, 0.1-0.5 parts of antioxidant, 0.5-1 parts of lubricant.
It preferably, further include 0.1-0.5 parts of crosslinking agent according to mass parts.
Preferably, the interface solubilizer is selected from EPDM-g-MAH.
Preferably, the PA is the mixture of modified Pa 6 and modified Pa 66.
Preferably, the modified Pa 6 is prepared by the following steps: by PAMAM dendritic macromole, O-MMT, caprolactam,
Water and phosphate are with (0.5-1): being warming up to 75-85 DEG C after mass ratio mixing (1-10): 100:50:(1-3), be stirred
It is even；Under nitrogen protection, then it is warming up to 240-260 DEG C, after heat-insulation pressure keeping hydrolysis reacts 1.5-2.5h, after decompression polymerization out
Expect simultaneously pelletizing.
Preferably, the modified Pa 66 is prepared by the following steps: it is molten that KH-570 silane coupling agent is dissolved in equal-volume acetone
In agent, the CSW of 5%-15% is added, after high-speed stirred disperses, is filtered by vacuum, drying, breaing up, and PA66 melt blending and is squeezed out
It is granulated.
It is a further object to provide a kind of trolley case castors to enhance the preparation side of nylon composite materials with carbon fiber
Method, comprising the following steps:
(1) carbon fiber and potassium permanganate are placed in the concentrated sulfuric acid after heating 2-3 hours, are 6-7 with distilled water flushing to pH, then pass through
Ethanol rinse is placed on ultrasonic disperse in ethyl alcohol, and magnetic agitation obtains mixture 1；
(2) silane coupling agent TTS, hollow glass bead, nano aluminium oxide are placed in ultrasonic disperse in ethyl alcohol, magnetic agitation obtains
Mixture 2；
(3) magnetic agitation after mixing mixture 1 and mixture 2, and reinforcing filler is obtained in 75-85 DEG C of heating 8-12h；
(4) by PA, interface solubilizer, reinforcing filler, extruding pelletization obtains plastic matrix after auxiliary agent successively mixes；
(5) injection molding obtains trolley case castor carbon fiber enhancing nylon composite materials after mixing plastic matrix and crosslinking agent.
Beneficial effects of the present invention:
1. it is reinforced modifier using nylon as raw material, activated carbon fiber, the hollow glass micropearl of surface active is filler,
EPDM-g-MAH is Interfacial compatibilization agent, and the composite material being prepared has better abrasive resistance, elasticity and anti-deformation energy
Power, so as to the service life of effective extending pull rod case castor.
2. a pair nylon matrix material pre-processes, in situ using organo montmorillonite (O-MMT) and cladodification agent collective effect
It is graft-polymerized with modified Pa 6, so that the organic modifiers (HOOC(CH on the surface O-MMT2)17NH3 +) carboxyl end group well with tree
Dendritic PA6 macromolecular reaction makes the fully dispersed stripping of montmorillonite to make the dendritic PA6 macromolecular of montmorillonite surface grafting
In hyperbranched PA6 matrix, a kind of network cross-linked structure is formed from intercalation.The intensity and toughness that this structure makes PA6 are all
It is greatly improved.Using calcium sulfate whisker modified PA66, also improved while reducing the coefficient of friction of PA66
The tensile strength and impact strength of PA66.To enhance as modified Pa 6 and modified Pa 66 as composite material made from substrate
Properties.
Specific embodiment
It is a specific embodiment of the invention below, and technical scheme of the present invention will be further described, but this hair
It is bright to be not limited to these examples.
Embodiment 1
A kind of trolley case castor carbon fiber enhancing nylon composite materials,
According to mass parts, including 35 parts of PA, 5 parts of hollow glass bead, 10 parts of activated carbon fiber, 5 parts of interface solubilizer, nanometer
3 parts of aluminium oxide and 0.7 part of auxiliary agent, 0.1 part of crosslinking agent.Wherein, auxiliary agent includes 0.1 part of heat stabilizer, and 0.1 part of antioxidant,
0.5 part of lubricant.
Wherein, interface solubilizer is selected from EPDM-g-MAH, and PA is the mixture of modified Pa 6 and modified Pa 66, heat stabilizer
Calcium stearate is selected, antioxidant selects phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, and lubricant selects stearic acid, crosslinking agent
Select styrene.
This trolley case castor enhances nylon composite materials with carbon fiber and is prepared by the following steps:
(1) modified Pa 6, by PAMAM dendritic macromole, O-MMT, caprolactam, water and phosphate with 0.5:1:100:50:1
Mass ratio mixing after be warming up to 75 DEG C, be uniformly mixed；Under nitrogen protection, then 240 DEG C are warming up to, heat-insulation pressure keeping hydrolysis
After ring-opening reaction 1.5h, discharging and pelletizing after decompression polymerization.
(2) KH-570 silane coupling agent is dissolved in equal-volume acetone solvent by modified Pa 66, adds 5%CSW, high-speed stirring
After mixing dispersion, vacuum filtration, drying, break up, with PA66 melt blending and extruding pelletization.
(3) PA is obtained with the mass ratio of 1:1 mixed and modified PA6 and PA66.
(4) EPDM-g-MAH is prepared, by EPDM, MAH, vinyltrimethoxysilane, styrene with 95:2:0.1:3's
Mass ratio sequentially adds in mixer in 170 DEG C of reactions 10min, revolving speed 70rpm, and the EPDM-g- of high grafting rate 1.6% is made
MAH。
(5) according to above-mentioned mass parts, carbon fiber and potassium permanganate are placed in the concentrated sulfuric acid after heating 2 hours, use distilled water
Rinsing to pH is 6, then is placed on ultrasonic disperse in ethyl alcohol through ethanol rinse, and magnetic agitation obtains mixture 1.
(6) according to above-mentioned mass parts, silane coupling agent TTS, hollow glass bead, nano aluminium oxide is placed in ethyl alcohol and surpassed
Sound dispersion, magnetic agitation obtain mixture 2.
(7) magnetic agitation after mixing mixture 1 and mixture 2, and reinforcing filler is obtained in 75 DEG C of heating 8h.
(8) according to above-mentioned mass parts, by PA, interface solubilizer, reinforcing filler, extruding pelletization is obtained after auxiliary agent successively mixes
To plastic matrix.
(9) according to above-mentioned mass parts, injection molding obtains trolley case castor carbon after plastic matrix and crosslinking agent are mixed
Fiber enhanced nylon composite material.
Embodiment 2
A kind of trolley case castor carbon fiber enhancing nylon composite materials,
According to mass parts, including 40 parts of PA, 8 parts of hollow glass bead, 12 parts of activated carbon fiber, 8 parts of interface solubilizer, nanometer
4 parts of aluminium oxide and 1.2 parts of auxiliary agent, 0.3 part of crosslinking agent.Wherein, auxiliary agent includes 0.2 part of heat stabilizer, and 0.3 part of antioxidant,
0.9 part of lubricant.
Wherein, interface solubilizer is selected from EPDM-g-MAH, and PA is the mixture of modified Pa 6 and modified Pa 66, heat stabilizer
Magnesium stearate is selected, antioxidant selects phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, and lubricant selects polyethylene wax, crosslinking
Styrene is selected in agent.
This trolley case castor enhances nylon composite materials with carbon fiber and is prepared by the following steps:
(1) modified Pa 6, by PAMAM dendritic macromole, O-MMT, caprolactam, water and phosphate with 0.8:5:100:50:2
Mass ratio mixing after be warming up to 80 DEG C, be uniformly mixed；Under nitrogen protection, then 250 DEG C are warming up to, heat-insulation pressure keeping hydrolysis
After ring-opening reaction 2h, discharging and pelletizing after decompression polymerization.
(2) KH-570 silane coupling agent is dissolved in equal-volume acetone solvent by modified Pa 66, adds 10%CSW, high speed
After being dispersed with stirring, be filtered by vacuum, drying, breaing up, with PA66 melt blending and extruding pelletization.
(3) PA is obtained with the mass ratio of 1:2 mixed and modified PA6 and PA66.
(4) EPDM-g-MAH is prepared, by EPDM, MAH, vinyltrimethoxysilane, styrene with 95:2:0.1:3's
Mass ratio sequentially adds in mixer in 175 DEG C of reactions 11min, revolving speed 75rpm, and the EPDM-g- of high grafting rate 1.6% is made
MAH。
(5) according to above-mentioned mass parts, carbon fiber and potassium permanganate are placed in the concentrated sulfuric acid after heating 2.5 hours, with distillation
It is 6.5 that water, which is rinsed to pH, then is placed on ultrasonic disperse in ethyl alcohol through ethanol rinse, and magnetic agitation obtains mixture 1.
(6) according to above-mentioned mass parts, silane coupling agent TTS, hollow glass bead, nano aluminium oxide is placed in ethyl alcohol and surpassed
Sound dispersion, magnetic agitation obtain mixture 2.
(7) magnetic agitation after mixing mixture 1 and mixture 2, and reinforcing filler is obtained in 80 DEG C of heating 10h.
(8) according to above-mentioned mass parts, by PA, interface solubilizer, reinforcing filler, extruding pelletization is obtained after auxiliary agent successively mixes
To plastic matrix.
(9) according to above-mentioned mass parts, injection molding obtains trolley case castor carbon after plastic matrix and crosslinking agent are mixed
Fiber enhanced nylon composite material.
Embodiment 3
A kind of trolley case castor carbon fiber enhancing nylon composite materials,
According to mass parts, including 45 parts of PA, 10 parts of hollow glass bead, 15 parts of activated carbon fiber, 10 parts of interface solubilizer, receive
Rice 5 parts of aluminium oxide and 2 parts of auxiliary agent, 0.5 part of crosslinking agent.Wherein, auxiliary agent includes 0.5 part of heat stabilizer, and 0.5 part of antioxidant,
1 part of lubricant.
Wherein, interface solubilizer is selected from EPDM-g-MAH, and PA is the mixture of modified Pa 6 and modified Pa 66, heat stabilizer
Calcium stearate is selected, antioxidant selects phosphorous acid three (2,4- di-tert-butyl-phenyl) ester, and lubricant selects tristerin,
Crosslinking agent selects styrene.
This trolley case castor enhances nylon composite materials with carbon fiber and is prepared by the following steps:
(1) modified Pa 6, by PAMAM dendritic macromole, O-MMT, caprolactam, water and phosphate with 1:10:100:50:3's
85 DEG C are warming up to after mass ratio mixing, is uniformly mixed；Under nitrogen protection, 260 DEG C are warming up to then, heat-insulation pressure keeping hydrolysis is opened
After ring reacts 2.5h, discharging and pelletizing after decompression polymerization.
(2) KH-570 silane coupling agent is dissolved in equal-volume acetone solvent by modified Pa 66, adds 15%CSW, high speed
After being dispersed with stirring, be filtered by vacuum, drying, breaing up, with PA66 melt blending and extruding pelletization.
(3) PA is obtained with the mass ratio of 2:1 mixed and modified PA6 and PA66.
(4) EPDM-g-MAH is prepared, by EPDM, MAH, vinyltrimethoxysilane, styrene with 95:2:0.1:3's
Mass ratio sequentially adds in mixer in 180 DEG C of reactions 12min, revolving speed 80rpm, and the EPDM-g- of high grafting rate 1.6% is made
MAH。
(5) according to above-mentioned mass parts, carbon fiber and potassium permanganate are placed in the concentrated sulfuric acid after heating 3 hours, use distilled water
Rinsing to pH is 7, then is placed on ultrasonic disperse in ethyl alcohol through ethanol rinse, and magnetic agitation obtains mixture 1.
(6) according to above-mentioned mass parts, silane coupling agent TTS, hollow glass bead, nano aluminium oxide is placed in ethyl alcohol and surpassed
Sound dispersion, magnetic agitation obtain mixture 2.
(7) magnetic agitation after mixing mixture 1 and mixture 2, and reinforcing filler is obtained in 85 DEG C of heating 12h.
(8) according to above-mentioned mass parts, by PA, interface solubilizer, reinforcing filler, extruding pelletization is obtained after auxiliary agent successively mixes
To plastic matrix.
(9) according to above-mentioned mass parts, injection molding obtains trolley case castor carbon after plastic matrix and crosslinking agent are mixed
Fiber enhanced nylon composite material.
The trolley case castor of each embodiment is as shown in the table with the properties table of comparisons that carbon fiber enhances nylon composite materials.
It can be seen that from the table, trolley case castor of the invention is obviously excellent with the properties that carbon fiber enhances nylon composite materials
In common trolley case castor material.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (8)
1. a kind of trolley case castor enhances nylon composite materials with carbon fiber, it is characterised in that: according to mass parts, including PA 35-45
Part, 5-10 parts of hollow glass bead, 10-15 parts of activated carbon fiber, solubilizer 5-10 parts of interface, 3-5 parts of nano aluminium oxide and
0.7-2 parts of auxiliary agent.
2. a kind of trolley case castor according to claim 1 enhances nylon composite materials with carbon fiber, it is characterised in that: described
Auxiliary agent includes 0.1-0.5 parts of heat stabilizer, 0.1-0.5 parts of antioxidant, 0.5-1 parts of lubricant.
3. a kind of trolley case castor according to claim 1 enhances nylon composite materials with carbon fiber, it is characterised in that: according to
Mass parts further include 0.1-0.5 parts of crosslinking agent.
4. a kind of trolley case castor according to claim 1 enhances nylon composite materials with carbon fiber, it is characterised in that: described
Interface solubilizer is selected from EPDM-g-MAH.
5. a kind of trolley case castor according to claim 1 enhances nylon composite materials with carbon fiber, it is characterised in that: described
PA is the mixture of modified Pa 6 and modified Pa 66.
6. a kind of trolley case castor according to claim 5 enhances nylon composite materials with carbon fiber, it is characterised in that: described
Modified Pa 6 is prepared by the following steps: by PAMAM dendritic macromole, O-MMT, caprolactam, water and phosphate with (0.5-1):
(1-10): 100:50:(1-3) mass ratio mixing after be warming up to 75-85 DEG C, be uniformly mixed；Under nitrogen protection, it then rises
Temperature is to 240-260 DEG C, after heat-insulation pressure keeping hydrolysis reacts 1.5-2.5h, discharging and pelletizing after decompression polymerization.
7. a kind of trolley case castor according to claim 5 enhances nylon composite materials with carbon fiber, it is characterised in that: described
Modified Pa 66 is prepared by the following steps: KH-570 silane coupling agent being dissolved in equal-volume acetone solvent, adds 5%-15%'s
CSW, after high-speed stirred disperses, is filtered by vacuum, drying, breaing up, with PA66 melt blending and extruding pelletization.
8. the preparation side that a kind of trolley case castor as described in claim 1-7 any one enhances nylon composite materials with carbon fiber
Method, it is characterised in that: the following steps are included:
(1) carbon fiber and potassium permanganate are placed in the concentrated sulfuric acid after heating 2-3 hours, are 6-7 with distilled water flushing to pH, then pass through
Ethanol rinse is placed on ultrasonic disperse in ethyl alcohol, and magnetic agitation obtains mixture 1；
(2) silane coupling agent TTS, hollow glass bead, nano aluminium oxide are placed in ultrasonic disperse in ethyl alcohol, magnetic agitation obtains
Mixture 2；
(3) magnetic agitation after mixing mixture 1 and mixture 2, and reinforcing filler is obtained in 75-85 DEG C of heating 8-12h；
(4) by PA, interface solubilizer, reinforcing filler, extruding pelletization obtains plastic matrix after auxiliary agent successively mixes；
(5) injection molding obtains trolley case castor carbon fiber enhancing nylon composite materials after mixing plastic matrix and crosslinking agent.
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| FR3111353A1 (en) * | 2020-06-15 | 2021-12-17 | Arkema France | Molding compositions based on polyamide, carbon fibers and hollow glass balls and their use |
| CN114683660A (en) * | 2022-06-02 | 2022-07-01 | 江苏福明太阳能有限公司 | High-temperature-resistant solar photovoltaic back plate |
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