CN109096782A - A kind of preparation method of automobile interior decoration natural fiber composite plastics material - Google Patents
A kind of preparation method of automobile interior decoration natural fiber composite plastics material Download PDFInfo
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- CN109096782A CN109096782A CN201810935588.8A CN201810935588A CN109096782A CN 109096782 A CN109096782 A CN 109096782A CN 201810935588 A CN201810935588 A CN 201810935588A CN 109096782 A CN109096782 A CN 109096782A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/005—Lignin
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of preparation methods of automobile interior decoration natural fiber composite plastics material, the technique is by lignin fibre, flax fiber, bamboo fiber, mineral fibre, asphalt base carbon fiber, isooctyl acid glycidol ether, alginic acid, carboxylic polystyrene, dilauryl thiodipropionate, mannitol, ceteareth, terephthalic acid (TPA), the raw materials such as zinc borate pass through high speed ball milling respectively, sieving sorting, high temperature sectional reaction, inert gas pressured activation, segmentation injection molding pressing mold, fluidization treatment, automobile interior decoration natural fiber composite plastics material is prepared in drying and other steps.The automobile interior decoration natural fiber composite plastics material being prepared, light weight, damping, buffering effect be good, safety and environmental protection, and temperature tolerance is good, is suitable for interior various inner-decoration components, such as seat frame, instrument board, vehicle chassis component.
Description
Technical field
The present invention relates to this technical fields of plastic material, are related specifically to a kind of automobile interior decoration natural fiber composite plastic
The preparation method of material.
Background technique
Engineering plastics are widely used in a variety of applications in technical research and development, not only have light handling characteristics, together
When using also have in cost it is lower use standard, the audience in society is more.It is used in the interior exterior trim of automobile
In, the usage quantity of engineering plastics material increases in stable environment always, but in the design and manufacture of automobile, plastics
The use of material is to measure the important indicator of manufacture level.In Automobile Design and Manufacturing, people contact it is most be exactly to use
Convenience and pollution to environment.Between Past 30 Years, the quantity of plastics of automobile oneself from the l0kg of early 1960s
Left and right rises to the 200kg at the beginning of 21 century.Currently, application of the plastics on automobile is broadly divided into 3 classes: exterior component, inside gadget and
Functional parts.Plastics exterior component increases the application amount of plastic products to mould Dai Gang, mitigates vehicle weight, reaches energy-efficient mesh
's.Plastic material in automotive upholstery mainly include using automotive upholstery compartment partition, door interior trim.Instrument board is total
At, handrail, top plate, carpet, the components such as seat, knitwear, felt, corium, artificial leather etc..Device is used in these automobiles
In manufacture, it can be realized by the use of metal product, woodwork and plastic products.It will cause vapour in the use of woodwork
The manufacturing price of vehicle is promoted, and is unfavorable for the sale and popularization of automobile, can be used in high-end automobile manufacture.And metal product
Utensil manufacture it is relatively common in the automobile manufacture of low side, feel and comfort level in use have certain limitation.And
The use of engineering plastics changes the use situation of automobile manufacture, improves that automobile is reflective, use of driving space, and in work
Have the characteristics that in journey cost it is cheap, it is higher use cost performance, while also have preferable comfort level and anti-flammability.Benefit at present
Biggish manufacturing market is occupied with the application that plastic material carries out automobile interior exterior decorations.
Summary of the invention
In order to solve the above-mentioned technical problem, the invention discloses a kind of systems of automobile interior decoration natural fiber composite plastics material
Preparation Method, the technique contract lignin fibre, flax fiber, bamboo fiber, mineral fibre, asphalt base carbon fiber, isooctyl acid
Water glycerin ether, alginic acid, carboxylic polystyrene, dilauryl thiodipropionate, mannitol, ceteareth, to benzene
The raw materials such as dioctyl phthalate, zinc borate pass through high speed ball milling respectively, sieving sorting, high temperature sectional reaction, inert gas pressured activation, divide
Automobile interior decoration natural fiber composite plastics material is prepared in section injection molding pressing mold, fluidization treatment, drying and other steps.It is prepared
Automobile interior decoration natural fiber composite plastics material, light weight, damping, buffering effect be good, safety and environmental protection, and temperature tolerance is good, fits
For interior various inner-decoration components, such as seat frame, instrument board, vehicle chassis component.
Technical solution: to solve the above-mentioned problems, the invention discloses a kind of automobile interior decoration natural fiber composite plastic materials
The preparation method of material, comprising the following steps:
(1) by 10-25 parts of lignin fibre, 10-15 parts of flax fiber, 7-13 parts of bamboo fiber, 7-10 parts of mineral fibre,
5-9 parts of asphalt base carbon fiber, 3-5 parts of isooctyl acid glycidol ether, 1-3 parts of alginic acid, 2-3 parts of dispersing agent be added to high speed ball milling
Ball milling is carried out in machine, Ball-milling Time is 60-65 minutes, and ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collects ball milling
Product sieves for subsequent use；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Carboxylic polystyrene 10-15 parts, 5-9 parts of dilauryl thiodipropionate, 3-8 parts of mannitol, ceteareth is added
5-7 parts, 3-5 parts of terephthalic acid (TPA), 1-3 parts of zinc borate, 1-4 parts of coupling agent, 3-4 parts of curing agent, after mixing evenly heating temperature
600-650 DEG C is risen to, inert gas is filled with, is naturally cooling to 300-310 DEG C after continuing insulation reaction 1-3 hours；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.4-0.6MPa, is warming up to 150-160
DEG C carry out vulcanizing treatment, the processing time be 30-40min.
(5) the vulcanization plastic part of step (4) is dried, packed to get finished product.
Preferably, the dispersing agent in the step (1) is the mixture of atoleine, magnesium stearate, polyethylene glycol, mass ratio
For 2:1:1.
Preferably, the mesh size of crossing in the step (1) is 300 mesh.
Preferably, the coupling agent in the step (2) is selected from vinyltriethoxysilane, 3- glycydoxy three
One of methoxy silane, γ-aminopropyl trimethoxysilane, γ-methacryloxypropyl trimethoxy silane or
It is several.Preferably, the curing agent in the step (2) be selected from diethylenetriamine, hexa, tert-butyl peroxy base ethane,
One or more of diamino diphenyl sulfone.
Preferably, the inert gas in the step (2) is nitrogen, gas pressure intensity 2-5MPa.
Preferably, it is 280-320 DEG C that the injecting condition in the step (3), which is nozzle temperature, and the temperature in an area and 2nd area is
280-320 DEG C, the temperature in 3rd area and 4th area is 270-275 DEG C, and the temperature in 5th area and 6th area is 270-275 DEG C, injection mold
Mould temperature is 90-320 DEG C, injection pressure 100-150MPa, injection speed 220-300mm/s.
Preferably, the drying in the step (5) is that room temperature is protected from light drying.
Compared with prior art, the present invention has the advantages that:
(1) a kind of preparation method of automobile interior decoration natural fiber composite plastics material of the invention is fine by lignin fibre, flax
Dimension, bamboo fiber, mineral fibre, asphalt base carbon fiber, isooctyl acid glycidol ether, alginic acid, carboxylic polystyrene, sulphur
Pass through clipping the ball respectively for raw materials such as dipropionic acid dilauryl, mannitol, ceteareth, terephthalic acid (TPA), zinc borates
Mill, sieving sorting, high temperature sectional reaction, inert gas pressured activation, segmentation injection molding pressing mold, fluidization treatment, drying and other steps system
It is standby to obtain automobile interior decoration natural fiber composite plastics material.The automobile interior decoration natural fiber composite plastics material being prepared,
Light weight, damping, buffering effect be good, safety and environmental protection, and temperature tolerance is good, is suitable for interior various inner-decoration components, as seat frame,
Instrument board, vehicle chassis component etc..
(2) automobile interior decoration natural fiber composite plastics material raw material of the invention be easy to get, simple process, be suitable for heavy industrialization
With practical.
Specific embodiment
Embodiment 1
(1) by 10 parts of lignin fibre, 10 parts of flax fiber, 7 parts of bamboo fiber, 7 parts of mineral fibre, asphalt base carbon fiber 5
Part, 3 parts of isooctyl acid glycidol ether, 1 part of alginic acid, 2 parts of dispersing agent be added in high speed ball mill and carry out ball milling, Ball-milling Time
It is 60-65 minutes, ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collects ball milling product and sieves for subsequent use, wherein dividing
Powder is the mixture of atoleine, magnesium stearate, polyethylene glycol, and mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 10 parts of carboxylic polystyrene, 5 parts of dilauryl thiodipropionate, 3 parts of mannitol, 5 parts of ceteareth, to benzene
3 parts of dioctyl phthalate, 1 part of zinc borate, 1 part of vinyltriethoxysilane, 3 parts of diethylenetriamine, after mixing evenly in heating temperature
600 DEG C are risen to, nitrogen is filled with, gas pressure intensity 2MPa continues insulation reaction and is naturally cooling to 300-310 DEG C after 1 hour；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 90 DEG C, injection pressure 100MPa, note
Firing rate degree is 220mm/s.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.4MPa, is warming up to 150-160 DEG C of progress
Vulcanizing treatment, processing time are 30min.
(5) the vulcanization plastic part of step (4) is subjected to room temperature and is protected from light dry, packaging to get finished product.
Embodiment 2
(1) by 15 parts of lignin fibre, 12 parts of flax fiber, 9 parts of bamboo fiber, 8 parts of mineral fibre, asphalt base carbon fiber 6
Part, 4 parts of isooctyl acid glycidol ether, 2 parts of alginic acid, 2 parts of dispersing agent be added in high speed ball mill and carry out ball milling, Ball-milling Time
It is 60-65 minutes, ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collects ball milling product and sieves for subsequent use, wherein dividing
Powder is the mixture of atoleine, magnesium stearate, polyethylene glycol, and mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 12 parts of carboxylic polystyrene, 6 parts of dilauryl thiodipropionate, 4 parts of mannitol, 6 parts of ceteareth, to benzene
4 parts of dioctyl phthalate, 2 parts of zinc borate, 2 parts of 3- glycidyl ether oxypropyltrimethoxysilane, 3 parts of hexa, stirring
Heating temperature rises to 620 DEG C after uniformly, is filled with nitrogen, gas pressure intensity 4MPa, lasting insulation reaction Temperature fall after 2 hours
To 300-310 DEG C；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 180 DEG C, injection pressure 120MPa, note
Firing rate degree is 250mm/s.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.5MPa, is warming up to 150-160 DEG C of progress
Vulcanizing treatment, processing time are 33min.
(5) the vulcanization plastic part of step (4) is subjected to room temperature and is protected from light dry, packaging to get finished product.
Embodiment 3
(1) by 20 parts of lignin fibre, 14 parts of flax fiber, 12 parts of bamboo fiber, 9 parts of mineral fibre, asphalt base carbon fiber 8
Part, 4 parts of isooctyl acid glycidol ether, 3 parts of alginic acid, 2 parts of dispersing agent be added in high speed ball mill and carry out ball milling, Ball-milling Time
It is 60-65 minutes, ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collects ball milling product and sieves for subsequent use, wherein dividing
Powder is the mixture of atoleine, magnesium stearate, polyethylene glycol, and mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 14 parts of carboxylic polystyrene, 8 parts of dilauryl thiodipropionate, 7 parts of mannitol, 6 parts of ceteareth, to benzene
4 parts of dioctyl phthalate, 3 parts of zinc borate, 3 parts of γ-aminopropyl trimethoxysilane, 4 parts of tert-butyl peroxy base ethane, after mixing evenly plus
Hot temperature rises to 640 DEG C, is filled with nitrogen, and gas pressure intensity 4MPa continues insulation reaction and is naturally cooling to 300- after 2 hours
310℃；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 250 DEG C, injection pressure 140MPa, note
Firing rate degree is 280mm/s.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.5MPa, is warming up to 150-160 DEG C of progress
Vulcanizing treatment, processing time are 38min.
(5) the vulcanization plastic part of step (4) is subjected to room temperature and is protected from light dry, packaging to get finished product.
Embodiment 4
(1) by 25 parts of lignin fibre, 15 parts of flax fiber, 13 parts of bamboo fiber, 10 parts of mineral fibre, asphalt base carbon fiber
9 parts, 5 parts of isooctyl acid glycidol ether, 3 parts of alginic acid, 2 parts of dispersing agent be added in high speed ball mill and carry out ball milling, when ball milling
Between be 60-65 minute, ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collection ball milling product sieve for subsequent use, wherein
Dispersing agent is the mixture of atoleine, magnesium stearate, polyethylene glycol, and mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 15 parts of carboxylic polystyrene, 9 parts of dilauryl thiodipropionate, 8 parts of mannitol, 7 parts of ceteareth, to benzene
5 parts of dioctyl phthalate, 3 parts of zinc borate, 4 parts of γ-methacryloxypropyl trimethoxy silane, 4 parts of diamino diphenyl sulfone,
Heating temperature rises to 650 DEG C after mixing evenly, is filled with nitrogen, and it is natural after 3 hours to continue insulation reaction by gas pressure intensity 5MPa
It is cooled to 300-310 DEG C；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 20 DEG C, injection pressure 150MPa, note
Firing rate degree is 300mm/s.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.6MPa, is warming up to 150-160 DEG C of progress
Vulcanizing treatment, processing time are 40min.
(5) the vulcanization plastic part of step (4) is subjected to room temperature and is protected from light dry, packaging to get finished product.
Comparative example 1
(1) by 7 parts of bamboo fiber, 7 parts of mineral fibre, 5 parts of asphalt base carbon fiber, 3 parts of isooctyl acid glycidol ether, alginic acid
1 part, 2 parts of dispersing agent is added in high speed ball mill and carries out ball milling, and Ball-milling Time is 60-65 minutes, and ratio of grinding media to material 99:1 fills
Bulb separation mill crushes product thoroughly, collects ball milling product and sieves for subsequent use, and wherein dispersing agent is atoleine, magnesium stearate, poly- second
The mixture of glycol, mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 10 parts of carboxylic polystyrene, 5 parts of dilauryl thiodipropionate, 3 parts of mannitol, 5 parts of ceteareth, to benzene
3 parts of dioctyl phthalate, 1 part of zinc borate, 1 part of vinyltriethoxysilane, 3 parts of diethylenetriamine, after mixing evenly in heating temperature
600 DEG C are risen to, nitrogen is filled with, gas pressure intensity 2MPa continues insulation reaction and is naturally cooling to 300-310 DEG C after 1 hour；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 90 DEG C, injection pressure 100MPa, note
Firing rate degree is 220mm/s.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.4MPa, is warming up to 150-160 DEG C of progress
Vulcanizing treatment, processing time are 30min.
(5) the vulcanization plastic part of step (4) is subjected to room temperature and is protected from light dry, packaging to get finished product.
Comparative example 2
(1) by 25 parts of lignin fibre, 15 parts of flax fiber, 13 parts of bamboo fiber, 10 parts of mineral fibre, asphalt base carbon fiber
9 parts, 5 parts of isooctyl acid glycidol ether, 3 parts of alginic acid, 2 parts of dispersing agent be added in high speed ball mill and carry out ball milling, when ball milling
Between be 60-65 minute, ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collection ball milling product sieve for subsequent use, wherein
Dispersing agent is the mixture of atoleine, magnesium stearate, polyethylene glycol, and mass ratio 2:1:1, crossing mesh size is 300 mesh；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Be added 15 parts of carboxylic polystyrene, 9 parts of dilauryl thiodipropionate, 8 parts of mannitol, 7 parts of ceteareth, to benzene
5 parts of dioctyl phthalate, 3 parts of zinc borate, 4 parts of γ-methacryloxypropyl trimethoxy silane, 4 parts of diamino diphenyl sulfone,
Heating temperature rises to 650 DEG C after mixing evenly, is filled with nitrogen, and it is natural after 3 hours to continue insulation reaction by gas pressure intensity 5MPa
It is cooled to 300-310 DEG C；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding, wherein infusing
Modeling condition is that nozzle temperature is 280-320 DEG C, and the temperature in an area and 2nd area is 280-320 DEG C, and the temperature in 3rd area and 4th area is
270-275 DEG C, the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 20 DEG C, injection pressure 150MPa, note
Firing rate degree is 300mm/s.
(4) the vulcanization plastic part of step (3) is subjected to room temperature and is protected from light dry, packaging to get finished product.
The automobile interior decoration natural fiber composite plastics material obtained of embodiment 1-4 and comparative example 1-2 is carried out respectively curved
This several Qu Qiangdu, spring rate, antioxygenic property performance tests, test result are shown in Table 1.
Table 1
| Bending strength (MPa) | Spring rate (* 104kg*cm/cm2) | Antioxygenic property | |
| Embodiment 1 | 74.83 | 6.15 | Well |
| Embodiment 2 | 75.85 | 6.72 | Well |
| Embodiment 3 | 77.14 | 6.29 | Well |
| Embodiment 4 | 74.88 | 6.50 | Well |
| Comparative example 1 | 43.91 | 3.27 | Generally |
| Comparative example 2 | 41.43 | 2.59 | Generally |
A kind of preparation method of automobile interior decoration natural fiber composite plastics material of the invention is fine by lignin fibre, flax
Dimension, bamboo fiber, mineral fibre, asphalt base carbon fiber, isooctyl acid glycidol ether, alginic acid, carboxylic polystyrene, sulphur
Pass through clipping the ball respectively for raw materials such as dipropionic acid dilauryl, mannitol, ceteareth, terephthalic acid (TPA), zinc borates
Mill, sieving sorting, high temperature sectional reaction, inert gas pressured activation, segmentation injection molding pressing mold, fluidization treatment, drying and other steps system
It is standby to obtain automobile interior decoration natural fiber composite plastics material.The automobile interior decoration natural fiber composite plastics material being prepared,
Light weight, damping, buffering effect be good, safety and environmental protection, and temperature tolerance is good, is suitable for interior various inner-decoration components, as seat frame,
Instrument board, vehicle chassis component etc..Automobile interior decoration natural fiber composite plastics material raw material of the invention is easy to get, simple process, is suitable for
Heavy industrialization uses, practical.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (8)
1. a kind of preparation method of automobile interior decoration natural fiber composite plastics material, which comprises the following steps:
(1) by 10-25 parts of lignin fibre, 10-15 parts of flax fiber, 7-13 parts of bamboo fiber, 7-10 parts of mineral fibre, drip
Green base carbon fibre 5-9 parts, 3-5 parts of isooctyl acid glycidol ether, 1-3 parts of alginic acid, 2-3 parts of dispersing agent be added to high speed ball mill
Middle carry out ball milling, Ball-milling Time are 60-65 minutes, and ratio of grinding media to material 99:1, abundant ball milling crushes product thoroughly, collect ball milling and produce
Object sieves for subsequent use；
(2) the ball milling product of step (1) is added in roll mill and carries out pyroreaction, when reaction temperature rises to 450 DEG C successively
Carboxylic polystyrene 10-15 parts, 5-9 parts of dilauryl thiodipropionate, 3-8 parts of mannitol, ceteareth is added
5-7 parts, 3-5 parts of terephthalic acid (TPA), 1-3 parts of zinc borate, 1-4 parts of coupling agent, 3-4 parts of curing agent, after mixing evenly heating temperature
600-650 DEG C is risen to, inert gas is filled with, is naturally cooling to 300-310 DEG C after continuing insulation reaction 1-3 hours；
(3) injection molding pressing mold will be carried out in the reaction solution injection injection molding machine of step (2), then cooling, fixed, demoulding.
(4) moulding of step (3) is put into steam vulcanization tank, with steam pressurization 0.4-0.6MPa, is warming up to 150-160 DEG C
Vulcanizing treatment is carried out, the processing time is 30-40min.
(5) the vulcanization plastic part of step (4) is dried, packed to get finished product.
2. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
State the mixture that the dispersing agent in step (1) is atoleine, magnesium stearate, polyethylene glycol, mass ratio 2:1:1.
3. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
The mesh size of crossing stated in step (1) is 300 mesh.
4. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
State coupling agent in step (2) be selected from vinyltriethoxysilane, 3- glycidyl ether oxypropyltrimethoxysilane,
One or more of γ-aminopropyl trimethoxysilane, γ-methacryloxypropyl trimethoxy silane.
5. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
The curing agent stated in step (2) is selected from diethylenetriamine, hexa, tert-butyl peroxy base ethane, diamino diphenyl sulfone
One or more of.
6. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
Stating the inert gas in step (2) is nitrogen, gas pressure intensity 2-5MPa.
7. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
It is 280-320 DEG C that state the injecting condition in step (3), which be nozzle temperature, and the temperature in an area and 2nd area is 280-320 DEG C, 3rd area and
The temperature in 4th area is 270-275 DEG C, and the temperature in 5th area and 6th area is 270-275 DEG C, and the mould temperature of injection mold is 90-320 DEG C, note
Injection pressure 100-150MPa, injection speed 220-300mm/s.
8. the preparation method of automobile interior decoration natural fiber composite plastics material according to claim 1, which is characterized in that institute
Stating the drying in step (5) is that room temperature is protected from light drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Application publication date: 20181228 |