CN105038217A - Carbon fiber reinforced nylon micro-foaming material and preparation method thereof - Google Patents
Carbon fiber reinforced nylon micro-foaming material and preparation method thereof Download PDFInfo
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- CN105038217A CN105038217A CN201510481823.5A CN201510481823A CN105038217A CN 105038217 A CN105038217 A CN 105038217A CN 201510481823 A CN201510481823 A CN 201510481823A CN 105038217 A CN105038217 A CN 105038217A
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B29C2948/00—Indexing scheme relating to extrusion moulding
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Abstract
The invention relates to a micro-foaming nylon material and a preparation method thereof, in particular to a carbon fiber reinforced nylon micro-foaming material and a preparation method thereof and belongs to the technical field of high polymer materials. The carbon fiber reinforced nylon micro-foaming material consists of, by weight, 40-70 parts of nylon, 10-40 parts of carbon fiber, 1-10 parts of compatilizer, 0.5-6 parts of foaming master batch and 0.5-2 parts of antioxidant. The carbon fiber reinforced nylon micro-foaming composite material is light in weight, high in strength and modulus and high in heat resistance, the tensile strength, bending modulus and heat-resistant capacity of the material are remarkably improved, meanwhile the weight of the material is lightened, and the high-performance nylon micro-foaming material has a light-weight characteristic. The carbon fiber reinforced nylon micro-foaming material can be applied to automotive structural products, such as radiator fans, intake manifolds, air filter housings, power generator covers, electric appliance housings, cooling exhaust pipes, seat bodies, seat slide rails and accelerator pedals, and weight lightening of the material for the automotive structural products is achieved. The carbon fiber reinforced nylon micro-foaming material can also be used in other fields, such as electric tools and buildings.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of nylon micro foaming composite material and preparation method thereof, especially a kind of carbon fiber reinforced nylon micro foaming composite material and preparation method thereof.
Background technology
Lightweight, environmental protection and energy saving, safety and comfort have become development of automobile important trend, and this becomes automotive material too and makes great efforts improvement direction.Fretting map technology a kind ofly can prepare the technology with exclusive dense skin and foam core structure material.Under the prerequisite ensureing material fundamental property, significantly alleviate part weight, be conducive to automobile lightweight.Wherein, nylon micro-foaming material at trolley part, as the parts such as engine bonnet, door handle application.
But, because nylon micro-foaming material over-all properties is lower, still cannot be applied to such as at present, on the structure units such as radiator fan, intake manifold, air filter housing, generator cap, electric appliance casing, cooling coil, seat main body, seat slide, gas pedal, seriously hinder the development of nylon micro-foaming material.
Summary of the invention
The present invention adopts lightweight, high-strength, Gao Mo, high heat-resisting carbon fiber as reinforcement, under ensureing nylon micro-foaming material lightweight advantage prerequisite, significantly improve its tension, bending strength, modulus and resistance toheat, obtain the high performance nylon micro-foaming material with lightweight feature, and the preparation method of this material is provided.Present invention process is simple, and production efficiency is high, be easy to realize industrialization.
Technical scheme
The present invention is technical solution problem by the following technical programs:
A kind of carbon fiber reinforced nylon micro-foaming material, raw material comprises the component of following weight part:
Nylon 40-70 part
Carbon fiber 10-40 part
Compatilizer 1-10 part
Whipping agent master batch 0.5-6 part
Oxidation inhibitor 0.5-2 part.
Further technical scheme, also comprises weighting agent 0-20 part, described filling in component
Agent is the one in calcium carbonate, glass microballon, talcum powder.
Further technical scheme, described nylon is the one in PA6, PA66, PA1010;
Described carbon fiber surface is through silane coupling agent process, and carbon fiber is continuous carbon fibre or chopped carbon fiber;
Described compatilizer is maleic anhydride graft POE or maleic anhydride graft PE;
The major ingredient of described whipping agent master batch is bicarbonate of ammonia, sodium bicarbonate, azo diformazan
Acid amides, toluene sulfonephthalein Urea,amino-, one in azo two amine carbonate;
Described oxidation inhibitor comprises primary antioxidant and auxiliary anti-oxidant.
Further technical scheme, described carbon fiber is carbon content >=95%, tensile strength >=4000MPa, and filament diameter is the continuous carbon fibre of 5 ~ 8 μm.
Further technical scheme, described compatilizer is maleic anhydride graft POE type.
Further technical scheme, the main component of described whipping agent master batch is Cellmic C 121.
Further technical scheme, described primary antioxidant is oxidation inhibitor 1098, and described auxiliary anti-oxidant is irgasfos 168.
A preparation method for carbon fiber reinforced nylon micro-foaming material, comprises the following steps:
(1) nylon, compatilizer, weighting agent, oxidation inhibitor are put into high-speed mixer mixing 4-6min in certainweight ratio, obtain component mixture;
(2) said components mixture is added twin screw extruder continuously by hopper, carbon fiber joins mixing extrusion in twin screw extruder by side spout, through check rod, cooling, drying, pelletizing, obtains carbon fiber reinforced nylon matrix material;
(3) join in injection moulding machine after the carbon fiber reinforced nylon matrix material obtained in step (2) and whipping agent master batch being mixed by 94-99.5 part and 0.5-6 part, injection moulding obtains high-performance carbon fibre Reinforced Nylon micro-foaming material.
Further technical scheme, in described step (1), twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 220-240 DEG C, II district: 240-260 DEG C, III district: 245-265 DEG C, IV district: 250-270 DEG C, V district: 250-270 DEG C, VI district: 250-270 DEG C, VII district: 250-270 DEG C, VIII district: 245-265 DEG C, IX district 240-260 DEG C, screw speed 500r/min.
Further technical scheme, in described step (3), injecting machine material tube temperature is 220-290 DEG C, and injection pressure is 60-100MPa, and injection speed is 50-90mm/s, and cooling time is 10-40s.
Beneficial effect
The present invention adopts Carbon Fiber Reinforced Technique, while significantly improving the performances such as nylon micro-foaming material tensile strength, modulus in flexure and thermotolerance, further lightening material weight, meet automotive industry to engineering plastics lightweight and high performance requirement, the structural part that product may be used in automobile component replaces existing solid modification of nylon Injection moulded part, realize automotive material lightweight, be conducive to promoting the further energy-saving and emission-reduction of automobile.Adopt side spout to add carbon fiber in preparation method of the present invention, Length of Glass Fiber can be retained better, improve material mechanical performance.Product of the present invention can realize fretting map at common injection machine, simple to operate, is easy to industrialization.
Embodiment
Embodiment one
The mixture of PA650 part, maleic anhydride graft POE7.5 part, 10980.6 parts, oxidation inhibitor, irgasfos 168 0.4 part is put into high-speed mixer, mix 6 minutes, then, said components mixture is added twin screw extruder continuously by hopper, by carbon content >=95% through silane coupling agent process, tensile strength >=4000MPa, filament diameter is that the continuous carbon fibre 40 parts of 5 ~ 8m joins in twin screw extruder machine barrel mixing by spout in the middle part of forcing machine in side mode of feeding, through check rod, cooling, drying, pelletizing, obtain carbon fiber reinforced nylon matrix material.Twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 220 DEG C, II district: 240 DEG C, III district: 245 DEG C, IV district: 270 DEG C, V district: 270 DEG C, VI district: 270 DEG C, VII district: 250 DEG C, VIII district: 245 DEG C, 240 DEG C, IX district, screw speed 500r/min; Put in injection moulding machine after the foaming master batch 0.5 part being Cellmic C 121 by 99.5 parts obtained, carbon fiber reinforced nylon matrix material and main component mixes, injection moulding obtains high-performance carbon fibre Reinforced Nylon micro-foaming material; Injecting machine material tube temperature 220-290 DEG C, injection pressure is 100MPa, and injection speed is 90mm/s, and cooling time is 40s.Gained micro-foaming material is with not add carbon fibre material performance comparison as follows:
Table 1 fibre reinforced micro-foaming material with do not add fiber material performance comparison
Embodiment two
By PA6640 part, maleic anhydride graft POE10 part, talcum powder 20 parts, 10981 parts, oxidation inhibitor, the mixture that irgasfos 168 is 1 part puts into high-speed mixer, mix 6 minutes, then, said components mixture is added twin screw extruder continuously by hopper, by carbon content >=95% through silane coupling agent process, tensile strength >=4000MPa, filament diameter is the continuous carbon fibre 22 parts of 5 ~ 8m, join in twin screw extruder machine barrel mixing by spout in the middle part of forcing machine in side mode of feeding, through check rod, cooling, dry, pelletizing, obtain carbon fiber reinforced nylon matrix material.Twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 220 DEG C, II district: 250 DEG C, III district: 250 DEG C, IV district: 270 DEG C, V district: 270 DEG C, VI district: 270 DEG C, VII district: 270 DEG C, VIII district: 265 DEG C, 260 DEG C, IX district, screw speed 500r/min; The foaming master batch 6 parts being sodium bicarbonate by 94 parts obtained, carbon fiber reinforced nylon matrix material and main component joins in injection moulding machine, and injection moulding obtains carbon fiber reinforced nylon micro foaming composite material.Injecting machine material tube temperature 220-290 DEG C, injection pressure is 60MPa, and injection speed is 50mm/s, and cooling time is 10s.Gained micro-foaming material is with not add carbon fibre material performance comparison as follows:
Table 1 fibre reinforced micro-foaming material with do not add fiber material performance comparison
Embodiment three
The mixture of PA670 part, maleic anhydride graft PE1 part, 10 parts, calcium carbonate, 10980.3 parts, oxidation inhibitor, antioxidant 1010 0.2 part is put into high-speed mixer, mix 5 minutes, then, said components mixture is added twin screw extruder continuously by hopper, by the chopped carbon fiber 16 parts through silane coupling agent process, join in twin screw extruder machine barrel mixing by spout in the middle part of forcing machine in side mode of feeding, through check rod, cooling, drying, pelletizing, obtain carbon fiber reinforced nylon matrix material.Twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 220 DEG C, II district: 240 DEG C, III district: 245 DEG C, IV district: 250 DEG C, V district: 250 DEG C, VI district: 250 DEG C, VII district: 250 DEG C, VIII district: 245 DEG C, 240 DEG C, IX district, screw speed 500r/min; By 97.5 parts obtained, carbon fiber reinforced nylon matrix material and main component be toluene sulfonephthalein Urea,amino-foaming master batch 2.5 parts join in injection moulding machine, injection moulding obtains carbon fiber reinforced nylon micro foaming composite material.Injecting machine material tube temperature 220-290 DEG C, injection pressure is 90MPa, and injection speed is 70mm/s, and cooling time is 30s.Gained micro-foaming material is with not add carbon fibre material performance comparison as follows:
Table 1 fibre reinforced micro-foaming material with do not add fiber material performance comparison
Embodiment four
By PA101066 part, maleic anhydride graft POE5 part, glass microballon 15 parts, 10980.6 parts, oxidation inhibitor, the mixture that irgasfos 168 is 0.4 part puts into high-speed mixer, mix 4 minutes, then, said components mixture is added twin screw extruder continuously by hopper, by carbon content >=95% through silane coupling agent process, tensile strength >=4000MPa, filament diameter is the continuous carbon fibre 10 parts of 5 ~ 8m, join in twin screw extruder machine barrel mixing by spout in the middle part of forcing machine in side mode of feeding, through check rod, cooling, dry, pelletizing, obtain carbon fiber reinforced nylon matrix material.Twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 240 DEG C, II district: 260 DEG C, III district: 265 DEG C, IV district: 270 DEG C, V district: 270 DEG C, VI district: 270 DEG C, VII district: 270 DEG C, VIII district: 265 DEG C, 260 DEG C, IX district, screw speed 500r/min; The foaming master batch 3 parts being bicarbonate of ammonia by 97 parts obtained, carbon fiber reinforced nylon matrix material and main component joins in injection moulding machine, and injection moulding obtains carbon fiber reinforced nylon micro foaming composite material.Injecting machine material tube temperature 220-290 DEG C, injection pressure is 80MPa, and injection speed is 80mm/s, and cooling time is 20s.Gained micro-foaming material is with not add carbon fibre material performance comparison as follows:
Table 1 fibre reinforced micro-foaming material with do not add fiber material performance comparison
As can be seen from above embodiment with do not add fine nylon micro-foaming material performance comparison, adopt Carbon Fiber Reinforced Technique, ensure that nylon micro-foaming material lightweight feature simultaneously, carbon fiber has performances such as nylon micro-foaming material mechanical strengths and significantly promotes effect, and intensity, rigidity are obviously better than not adding the fine sample of carbon.Another feature of the present invention obviously shortens the process-cycle, significantly reduces production cost.Product has excellent dimensional stability.In addition, can according to different demand, adjustment formula rate, reaches required target capabilities, reduces material usage.
The present invention adopts Carbon Fiber Reinforced Technique, under guarantee realizes the light-weighted prerequisite of nylon material, effectively improves product size stability, significantly improves goods rigidity, intensity and resistance toheat, realize nylon micro-foaming material high performance.Meanwhile, shorten the process-cycle, enhance productivity.This product realizes by common Shooting Technique, simple to operate, practical.Product, except being applicable to vehicle structure product, also can be used for the industry fields such as building, electronics, sports equipment.
The foregoing is only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, such as, weighting agent also can be glass fibre.Any those of ordinary skill in the art are in technical scope of the present invention, and the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a carbon fiber reinforced nylon micro-foaming material, is characterized in that, raw material comprises the component of following weight part:
Nylon 40-70 part
Carbon fiber 10-40 part
Compatilizer 1-10 part
Whipping agent master batch 0.5-6 part
Oxidation inhibitor 0.5-2 part.
2. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 1, is characterized in that, also comprises weighting agent 0-20 part in component, and described weighting agent is the one in calcium carbonate, glass microballon, talcum powder.
3. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 1, is characterized in that, described nylon is the one in PA6, PA66, PA1010;
Described carbon fiber surface is through silane coupling agent process, and carbon fiber is continuous carbon fibre or chopped carbon fiber;
Described compatilizer is maleic anhydride graft POE or maleic anhydride graft PE;
The major ingredient of described whipping agent master batch be bicarbonate of ammonia, sodium bicarbonate, Cellmic C 121, toluene sulfonephthalein Urea,amino-, one in azo two amine carbonate;
Described oxidation inhibitor comprises primary antioxidant and auxiliary anti-oxidant.
4. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 1 or 3, it is characterized in that, described carbon fiber is carbon content >=95%, tensile strength >=4000MPa, and filament diameter is the continuous carbon fibre of 5 ~ 8 μm.
5. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 1 or 3, is characterized in that, described compatilizer is maleic anhydride graft POE type.
6. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 1 or 3, is characterized in that, the main component of described whipping agent master batch is Cellmic C 121.
7. a kind of carbon fiber reinforced nylon micro-foaming material according to claim 3, is characterized in that, described primary antioxidant is oxidation inhibitor 1098, and described auxiliary anti-oxidant is irgasfos 168.
8. the preparation method of a kind of carbon fiber reinforced nylon micro-foaming material according to any one of claim 1-3, is characterized in that, comprise the following steps:
(1) nylon, compatilizer, weighting agent, oxidation inhibitor are put into high-speed mixer mixing 4-6min in certainweight ratio, obtain component mixture;
(2) said components mixture is added twin screw extruder continuously by hopper, carbon fiber joins mixing extrusion in twin screw extruder by side spout, through check rod, cooling, drying, pelletizing, obtains carbon fiber reinforced nylon matrix material;
(3) join in injection moulding machine after the carbon fiber reinforced nylon matrix material obtained in step (2) and whipping agent master batch being mixed by 94-99.5 part and 0.5-6 part, injection moulding obtains high-performance carbon fibre Reinforced Nylon micro-foaming material.
9. the preparation method of a kind of carbon fiber reinforced nylon micro-foaming material according to claim 8, it is characterized in that, in described step (1), twin-screw extruder barrel each section of temperature range from charging opening to head is: I district: 220-240 DEG C, II district: 240-260 DEG C, III district: 245-265 DEG C, IV district: 250-270 DEG C, V district: 250-270 DEG C, VI district: 250-270 DEG C, VII district: 250-270 DEG C, VIII district: 245-265 DEG C, IX district 240-260 DEG C, screw speed 500r/min.
10. the preparation method of a kind of carbon fiber reinforced nylon micro-foaming material according to claim 8, it is characterized in that, in described step (3), injecting machine material tube temperature is 220-290 DEG C, and injection pressure is 60-100MPa, injection speed is 50-90mm/s, and cooling time is 10-40s.
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