CN108586920A - One kind exempting from spray coating polypropylene composition and preparation method thereof - Google Patents
One kind exempting from spray coating polypropylene composition and preparation method thereof Download PDFInfo
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- CN108586920A CN108586920A CN201810325472.2A CN201810325472A CN108586920A CN 108586920 A CN108586920 A CN 108586920A CN 201810325472 A CN201810325472 A CN 201810325472A CN 108586920 A CN108586920 A CN 108586920A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical Kinetics & Catalysis (AREA)
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- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
The invention discloses one kind exempting from spray coating polypropylene composition and preparation method thereof, and it includes polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium pigment, bamboo powder, wood powder, Al alloy powder, weather resisting agent, aluminium oxide nano antiwear additive, wollastonite, other auxiliary agents to exempt from spray coating polypropylene composition.It is provided by the invention to exempt from spray coating polypropylene composition and preparation method thereof, using polypropylene as matrix, lightweight demand is realized by adding organic fiber and carbon fiber, aluminium pigment, Al alloy powder and toner realize the blast of appearance, glossiness, different toners can also be achieved different color effects, meet the different appearance demand of people, bamboo powder and wood powder are as filler, it is light, weather resisting agent and aluminium oxide nano antiwear additive, which enable, exempts from spray coating polypropylene composition and preferably adapts to adverse circumstances, it has both explosion-proof, it is anti-oxidant, anti-aging and wear-resisting property, preparation process is simple, it is easily industrialized production.
Description
Technical field
The present invention relates to automobile bumper material technical field, more particularly to one kind exempting from spray coating polypropylene composition and its system
Preparation Method.
Background technology
In contemporary China or even the whole world, when the river rises the boat goes up for people’s lives level and purchasing power, and private car quantity constantly increases
Add, requirement of the people to automotive performance and product appearance is also higher and higher, and traditional spraying method using paint is also easy to produce people
Body harmful substance, is unfavorable for environmental protection, and at present using being more to exempt from spraying technology, material technology and pigment technology are combined,
Interaction between control plastic material and each toner obtains beautiful product appearance effect, and the feature of environmental protection is strong.
Polypropylene is to use one of extensive polymers for general use at present, and polypropylene is applied to exempt from spraying technology to be also current
Development trend, but it is existing exempt from spray coating polypropylene there is also some functional defect, be not well positioned to meet a variety of need of people
It asks.
Invention content
Technical problem to be solved by the present invention lies in provide one kind in view of the above technical problems and exempting from spray coating polypropylene group
Close object and preparation method thereof.
The technical problems to be solved by the invention can be achieved through the following technical solutions：
One kind exempting from spray coating polypropylene composition, indicates by weight percentage, including polypropylene 52.8-79.6%, organic fibre
Tie up 10-20%, polyvinyl chloride 5-10%, carbon fiber 0-3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder
0-0.2%, Al alloy powder 0-0.4%, weather resisting agent 0.2-0.6%, aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite
0.1-0.3%, other auxiliary agents 0.4-2.4%.
Further, other described auxiliary agents include promoting agent for graft copolymerization of polypropylene with maleic anhydride, toughener, coupling agent, toner
And nucleating agent, it indicates in parts by weight, 20-30 parts of promoting agent for graft copolymerization of polypropylene with maleic anhydride, 20-30 parts of toughener, coupling agent
15-25 parts, 5-20 parts of toner, 15-30 parts of nucleating agent.
Further, the weather resisting agent includes anti-knock agent, metallic silicon power and age resister, is indicated in parts by weight, explosion-proof
26-32 parts of agent, 30-50 parts of metallic silicon power, 30-50 parts of age resister.
Further, the polypropylene is the mixing of homopolypropylene and copolymer polypropylene, and homopolypropylene and copolymerization are poly-
The mass ratio of propylene is 1-7：1.
Further, the organic fiber is in polyimide fiber, polypropylene grafted maleic anhydride modification organic fiber
Any one or two kinds of combinations.
Further, the toughener uses POE-g-MAH toughener, coupling agent to select silane coupling agent, and toner includes
Silver powder, bronze or aluminium powder, nucleating agent select β crystalline substance nucleating agents, age resister to use thiodipropionic acid dilauryl silicone grease.
Further, include the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium
Pigment, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, when setting
Between be 3-12min, the rotating speed of mixer is 320-500r/min, spare；
Step 2: mixture made from step 1 is fed by main feeding hopper in double screw extruder, it will be suitable resistance to
Wait agent, aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, after through melting, squeeze out, make
Grain, obtain needed for exempt from spray coating polypropylene composition, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, stop
Time is 1-6min.
Further, it indicates by weight percentage, polypropylene 52.8-79.6%, organic fiber 10-20%, polyvinyl chloride
5-10%, carbon fiber 0-3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder 0-0.2%, Al alloy powder
0-0.4%, weather resisting agent 0.2-0.6%, aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite 0.1-0.3%, other auxiliary agents
0.4-2.4%.
Further, the main-machine screw rotating speed of the double screw extruder is 260-350r/min, the screw rod of main feeding hopper
Rotating speed is 20-30r/min, and the screw speed of side feeding hopper is 3-10r/min.
Compared with prior art, beneficial effects of the present invention are：
The invention discloses one kind exempting from spray coating polypropylene composition and preparation method thereof, indicates by weight percentage, exempts to spray
It includes polypropylene 52.8-79.6%, organic fiber 10-20%, polyvinyl chloride 5-10%, carbon fiber 0- to apply polypropene composition
3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder 0-0.2%, Al alloy powder 0-0.4%, weather resisting agent
0.2-0.6%, aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite 0.1-0.3%, other auxiliary agents 0.4-2.4%.The present invention
What is provided exempts from spray coating polypropylene composition and preparation method thereof, using homopolypropylene and copolymer polypropylene as matrix, passes through addition
Organic fiber and carbon fiber realize that lightweight demand, aluminium pigment, Al alloy powder and toner realize the blast of appearance, gold
Belong to glossiness, different toners can also be achieved different appearance colour effects, meet the different appearance demand of people, in polypropylene
Bamboo powder and wood powder are added in matrix, are responded environmental protection and are called, are alternatively arranged as filler, cost is relatively low, light, meets lightweight and wants
It asks, weather resisting agent and aluminium oxide nano antiwear additive, which enable, exempts from spray coating polypropylene composition and preferably adapt to adverse circumstances, has both
Explosion-proof, anti-oxidant, anti-aging and wear-resisting property, improves the comprehensive performance for exempting from product made from spray coating polypropylene composition, and collection is outer
Beautiful, environmental protection, function admirable are seen in one, preparation process is simple, it is easy to accomplish industrialized production.
Specific implementation mode
Technical scheme of the present invention is described in detail below by specific implementation mode.
One kind exempting from spray coating polypropylene composition, indicates by weight percentage, including polypropylene 52.8-79.6%, organic fibre
Tie up 10-20%, polyvinyl chloride 5-10%, carbon fiber 0-3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder
0-0.2%, Al alloy powder 0-0.4%, weather resisting agent 0.2-0.6%, aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite
0.1-0.3%, other auxiliary agents 0.4-2.4%.
Other auxiliary agents include promoting agent for graft copolymerization of polypropylene with maleic anhydride, toughener, coupling agent, toner and nucleating agent, by weight
It measures number to indicate, 20-30 parts of promoting agent for graft copolymerization of polypropylene with maleic anhydride, 20-30 parts of toughener, 15-25 parts of coupling agent, toner 5-
20 parts, 15-30 parts of nucleating agent, toughener use POE-g-MAH toughener, coupling agent to select silane coupling agent, and toner can basis
User demand selects the toner, including silver powder, bronze, aluminium powder etc. of different color, nucleating agent to select β crystalline substance nucleating agents.
Weather resisting agent includes anti-knock agent, metallic silicon power and age resister, is indicated in parts by weight, 26-32 parts of anti-knock agent, metal
30-50 parts of silica flour, 30-50 parts of age resister, the commercially available acquisition of anti-knock agent, age resister use thiodipropionic acid dilauryl silicone grease.
Polypropylene is the mixing of homopolypropylene and copolymer polypropylene, and the mass ratio of homopolypropylene and copolymer polypropylene is
1-7：1.
Organic fiber is any one of polyimide fiber, polypropylene grafted maleic anhydride modification organic fiber or two kinds
Combination.
Elastomer selects the thermoplastic elastomer (TPE)s such as polyolefin, polyethylene.
A kind of preparation method for exempting from spray coating polypropylene composition, includes the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium
Pigment, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, when setting
Between be 3-12min, the rotating speed of mixer is 320-500r/min, spare；
Step 2: mixture made from step 1 is fed by main feeding hopper in double screw extruder, it will be suitable resistance to
Wait agent, aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, after through melting, squeeze out, make
Grain, obtain needed for exempt from spray coating polypropylene composition, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, stop
Time is 1-6min, pressure 12-20MPa.
In step 1 and step 2, indicate by weight percentage, polypropylene 52.8-79.6%, organic fiber 10-20%,
Polyvinyl chloride 5-10%, carbon fiber 0-3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder 0-0.2%, aluminium
Alloy powder 0-0.4%, weather resisting agent 0.2-0.6%, aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite 0.1-0.3%, its
He is auxiliary agent 0.4-2.4%.
The main-machine screw rotating speed of double screw extruder is 260-350r/min, and the screw speed of main feeding hopper is 20-30r/
The screw speed of min, side feeding hopper are 3-10r/min.
Embodiment 1
One kind exempting from spray coating polypropylene composition, indicates by weight percentage, including polypropylene 52.8%, organic fiber
20%, polyvinyl chloride 10%, carbon fiber 3%, elastomer 6%, aluminium pigment 3%, bamboo powder 1%, wood powder 0.2%, Al alloy powder
0.4%, weather resisting agent 0.6%, aluminium oxide nano antiwear additive 0.3%, wollastonite 0.3%, other auxiliary agents 2.4%.
Other auxiliary agents include promoting agent for graft copolymerization of polypropylene with maleic anhydride, toughener, coupling agent, toner and nucleating agent, by weight
It measures number to indicate, 20-30 parts of promoting agent for graft copolymerization of polypropylene with maleic anhydride, 20-30 parts of toughener, 15-25 parts of coupling agent, toner 5-
20 parts, 15-30 parts of nucleating agent, toughener use POE-g-MAH toughener, coupling agent to select silane coupling agent, and toner can basis
User demand selects the toner, including silver powder, bronze or aluminium powder etc. of different color, nucleating agent to select β crystalline substance nucleating agents.
Weather resisting agent includes anti-knock agent, metallic silicon power and age resister, is indicated in parts by weight, 26-32 parts of anti-knock agent, metal
30-50 parts of silica flour, 30-50 parts of age resister, the commercially available acquisition of anti-knock agent, age resister use thiodipropionic acid dilauryl silicone grease.
Polypropylene is the mixing of homopolypropylene and copolymer polypropylene, and the mass ratio of homopolypropylene and copolymer polypropylene is
1：1.
Organic fiber is polyimide fiber.
Elastomer selects the thermoplastic elastomer (TPE)s such as polyolefin, polyethylene.
A kind of preparation method for exempting from spray coating polypropylene composition, includes the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium
Pigment, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, when setting
Between be 3-12min, the rotating speed of mixer is 320-500r/min, spare；
Step 2: mixture made from step 1 is fed by main feeding hopper in double screw extruder, it will be suitable resistance to
Wait agent, aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, after through melting, squeeze out, make
Grain, obtain needed for exempt from spray coating polypropylene composition, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, stop
Time is 1-6min, pressure 12-20MPa.
The main-machine screw rotating speed of double screw extruder is 260-350r/min, and the screw speed of main feeding hopper is 20-30r/
The screw speed of min, side feeding hopper are 3-10r/min.
Embodiment 2
One kind exempting from spray coating polypropylene composition, indicates by weight percentage, including polypropylene 79.6%, organic fiber
10%, polyvinyl chloride 5%, carbon fiber 0%, elastomer 3%, aluminium pigment 1%, bamboo powder 0.6%, wood powder 0%, Al alloy powder
0%, weather resisting agent 0.2%, aluminium oxide nano antiwear additive 0.1%, wollastonite 0.1%, other auxiliary agents 0.4%.
Other auxiliary agents include promoting agent for graft copolymerization of polypropylene with maleic anhydride, toughener, coupling agent, toner and nucleating agent, by weight
It measures number to indicate, 20-30 parts of promoting agent for graft copolymerization of polypropylene with maleic anhydride, 20-30 parts of toughener, 15-25 parts of coupling agent, toner 5-
20 parts, 15-30 parts of nucleating agent, toughener use POE-g-MAH toughener, coupling agent to select silane coupling agent, and toner can basis
User demand selects the toner, including silver powder, bronze, aluminium powder etc. of different color, nucleating agent to select β crystalline substance nucleating agents.
Weather resisting agent includes anti-knock agent, metallic silicon power and age resister, is indicated in parts by weight, 26-32 parts of anti-knock agent, metal
30-50 parts of silica flour, 30-50 parts of age resister, the commercially available acquisition of anti-knock agent, age resister use thiodipropionic acid dilauryl silicone grease.
Polypropylene is the mixing of homopolypropylene and copolymer polypropylene, and the mass ratio of homopolypropylene and copolymer polypropylene is
7：1.
Organic fiber is polyimide fiber.
Elastomer selects polyolefin thermoplastic elastomer.
A kind of preparation method for exempting from spray coating polypropylene composition, includes the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium
Pigment, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, when setting
Between be 3-12min, the rotating speed of mixer is 320-500r/min, spare；
Step 2: mixture made from step 1 is fed by main feeding hopper in double screw extruder, it will be suitable resistance to
Wait agent, aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, after through melting, squeeze out, make
Grain, obtain needed for exempt from spray coating polypropylene composition, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, stop
Time is 1-6min, pressure 12-20MPa.
The main-machine screw rotating speed of double screw extruder is 260-350r/min, and the screw speed of main feeding hopper is 20-30r/
The screw speed of min, side feeding hopper are 3-10r/min.
Embodiment 3
One kind exempting from spray coating polypropylene composition, indicates by weight percentage, including polypropylene 68.8%, organic fiber
14%, polyvinyl chloride 6%, carbon fiber 1%, elastomer 4%, aluminium pigment 2%, bamboo powder 0.9%, wood powder 0.1%, Al alloy powder
0.3%, weather resisting agent 0.5%, aluminium oxide nano antiwear additive 0.2%, wollastonite 0.2%, other auxiliary agents 2%.
Other auxiliary agents include promoting agent for graft copolymerization of polypropylene with maleic anhydride, toughener, coupling agent, toner and nucleating agent, by weight
It measures number to indicate, 20-30 parts of promoting agent for graft copolymerization of polypropylene with maleic anhydride, 20-30 parts of toughener, 15-25 parts of coupling agent, toner 5-
20 parts, 15-30 parts of nucleating agent, toughener use POE-g-MAH toughener, coupling agent to select silane coupling agent, and toner can basis
User demand selects the toner, including silver powder, bronze, aluminium powder etc. of different color, nucleating agent to select β crystalline substance nucleating agents.
Weather resisting agent includes anti-knock agent, metallic silicon power and age resister, is indicated in parts by weight, 26-32 parts of anti-knock agent, metal
30-50 parts of silica flour, 30-50 parts of age resister, the commercially available acquisition of anti-knock agent, age resister use thiodipropionic acid dilauryl silicone grease.
Polypropylene is the mixing of homopolypropylene and copolymer polypropylene, and the mass ratio of homopolypropylene and copolymer polypropylene is
2：1.
Organic fiber is polyimide fiber.
Elastomer selects rubber/polythene thermoplastic elastomer.
A kind of preparation method for exempting from spray coating polypropylene composition, includes the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium
Pigment, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, when setting
Between be 3-12min, the rotating speed of mixer is 320-500r/min, spare；
Step 2: mixture made from step 1 is fed by main feeding hopper in double screw extruder, it will be suitable resistance to
Wait agent, aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, after through melting, squeeze out, make
Grain, obtain needed for exempt from spray coating polypropylene composition, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, stop
Time is 1-6min, pressure 12-20MPa.
The main-machine screw rotating speed of double screw extruder is 260-350r/min, and the screw speed of main feeding hopper is 20-30r/
The screw speed of min, side feeding hopper are 3-10r/min.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. one kind exempting from spray coating polypropylene composition, which is characterized in that indicate by weight percentage, including polypropylene 52.8-
79.6%, organic fiber 10-20%, polyvinyl chloride 5-10%, carbon fiber 0-3%, elastomer 3-6%, aluminium pigment 1-3%, bamboo
Powder 0.6-1%, wood powder 0-0.2%, Al alloy powder 0-0.4%, weather resisting agent 0.2-0.6%, aluminium oxide nano antiwear additive 0.1-
0.3%, wollastonite 0.1-0.3%, other auxiliary agents 0.4-2.4%.
2. one kind according to claim 1 exempts from spray coating polypropylene composition, which is characterized in that other described auxiliary agents include poly-
Propylene graft maleic anhydride compatilizer, toughener, coupling agent, toner and nucleating agent, indicate in parts by weight, polypropylene grafted horse
Come 20-30 parts of acid anhydrides compatilizer, 20-30 parts of toughener, 15-25 parts of coupling agent, 5-20 parts of toner, 15-30 parts of nucleating agent.
3. one kind according to claim 1 exempts from spray coating polypropylene composition, which is characterized in that the weather resisting agent includes explosion-proof
Agent, metallic silicon power and age resister, indicate in parts by weight, 26-32 parts of anti-knock agent, 30-50 parts of metallic silicon power, age resister
30-50 parts.
4. one kind according to claim 1 exempts from spray coating polypropylene composition, which is characterized in that the polypropylene is poly- for homopolymerization
The mass ratio of the mixing of propylene and copolymer polypropylene, homopolypropylene and copolymer polypropylene is 1-7：1.
5. one kind according to claim 1 exempts from spray coating polypropylene composition, which is characterized in that the organic fiber is polyamides
Imine fiber, polypropylene grafted maleic anhydride are modified the combination of any one of organic fiber or two kinds.
6. one kind according to claim 1 exempts from spray coating polypropylene composition, which is characterized in that the toughener uses POE-
G-MAH toughener, it includes silver powder, bronze or aluminium powder that coupling agent, which selects silane coupling agent, toner, and nucleating agent selects β crystalline substance nucleating agents,
Age resister uses thiodipropionic acid dilauryl silicone grease.
7. a kind of preparation method for exempting from spray coating polypropylene composition, which is characterized in that include the following steps：
Step 1: by weight percentage, taking suitable polypropylene, organic fiber, polyvinyl chloride, carbon fiber, elastomer, aluminium face
Material, bamboo powder, wood powder, Al alloy powder and other auxiliary agents are added in mixer, are uniformly mixed at a temperature of 60-110 DEG C, setting time
Rotating speed for 3-12min, mixer is 320-500r/min, spare；
Step 2: by mixture made from step 1 by main feeding hopper feed double screw extruder in, by suitable weather resisting agent,
Aluminium oxide nano antiwear additive, wollastonite are fed by side feeding hopper in double screw extruder, through melting, extrusion, granulation after, are obtained
Exempt from spray coating polypropylene composition to required, each section of heating temperature of double screw extruder is respectively 180-245 DEG C, and the residence time is
1-6min。
8. a kind of preparation method for exempting from spray coating polypropylene composition according to claim 7, which is characterized in that by weight hundred
Divide than indicating, polypropylene 52.8-79.6%, organic fiber 10-20%, polyvinyl chloride 5-10%, carbon fiber 0-3%, elastomer
3-6%, aluminium pigment 1-3%, bamboo powder 0.6-1%, wood powder 0-0.2%, Al alloy powder 0-0.4%, weather resisting agent 0.2-0.6%,
Aluminium oxide nano antiwear additive 0.1-0.3%, wollastonite 0.1-0.3%, other auxiliary agents 0.4-2.4%.
9. a kind of preparation method for exempting from spray coating polypropylene composition according to claim 7, which is characterized in that double spiral shells
The main-machine screw rotating speed of bar extruder is 260-350r/min, and the screw speed of main feeding hopper is 20-30r/min, side feeding hopper
Screw speed be 3-10r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810325472.2A CN108586920A (en) | 2018-04-12 | 2018-04-12 | One kind exempting from spray coating polypropylene composition and preparation method thereof |
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| CN201810325472.2A CN108586920A (en) | 2018-04-12 | 2018-04-12 | One kind exempting from spray coating polypropylene composition and preparation method thereof |
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| CN106084493A (en) * | 2016-07-08 | 2016-11-09 | 上海朝希材料科技有限公司 | A kind of metal-like for automobile exterior trimming parts exempts from spray coating polypropylene composite and preparation method thereof |
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2018
- 2018-04-12 CN CN201810325472.2A patent/CN108586920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103694562A (en) * | 2013-12-10 | 2014-04-02 | 广州市聚赛龙工程塑料有限公司 | Spraying-free scrape-resistant polypropylene composite material for automobile interior trim parts and preparation method thereof |
| CN104045908A (en) * | 2014-06-10 | 2014-09-17 | 合肥会通新材料有限公司 | Spraying-free scratch-resistant polypropylene composite material used for car exterior trimming parts and preparation method of composite material |
| CN106084493A (en) * | 2016-07-08 | 2016-11-09 | 上海朝希材料科技有限公司 | A kind of metal-like for automobile exterior trimming parts exempts from spray coating polypropylene composite and preparation method thereof |
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Application publication date: 20180928 |