CN106566078A - High-strength polypropylene foam bead and production technology - Google Patents
High-strength polypropylene foam bead and production technology Download PDFInfo
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- CN106566078A CN106566078A CN201610929351.XA CN201610929351A CN106566078A CN 106566078 A CN106566078 A CN 106566078A CN 201610929351 A CN201610929351 A CN 201610929351A CN 106566078 A CN106566078 A CN 106566078A
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- 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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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—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
- C08J9/12—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 physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
- C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/06—CO2, N2 or noble gases
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/08—Supercritical fluid
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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- C08K2201/003—Additives being defined by their diameter
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L2201/04—Antistatic
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2203/14—Applications used for foams
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
Abstract
The invention relates to a high-strength polypropylene foam bead, which comprises a polypropylene matrix and a high-strength system. The high-strength system comprises the following ingredients (by weight): 6.7-6.9 parts of nano-silica, 15-17 parts of alkylamine ethoxylate, 91-93 parts of methyl hydrogen silicone oil, 7.7-7.9 parts of hydroxy polydimethylsiloxane, 8-10 parts of silane, ethenyltrimethoxy, 3.5-3.7 parts of ammonium polyphosphate, 17-19 parts of chopped glass fibre, 32-35 parts of nano-montmorillonite, 9.5-9.7 parts of fumed silica, 12-15 parts of gamma-aminopropyltriethoxysilane, 2.1-2.3 parts of alkylphenol ethoxylates, 7-9 parts of a flexibilizer, 0.5-0.7 part of a reactive diluents, 0.5-.07 part of a compatilizer, 1.1-1.3 parts of a coupling agent, 1.5-1.7 parts of a leveling agent, and 0.3-0.5 part of mixed rare earth chlorides. According to the invention, impact resistance, strength, high temperature resistance, flame resistance, mechanical property, thermal stability and antistatic property of the polypropylene foam bead can be enhanced.
Description
Technical field
The present invention relates to a kind of production technology of PP foam material, specifically a kind of high-strength polypropylene foaming
Bead and its production technology.
Background technology
There is harmful isocyanates residue in polyurethane foam, and expanded material cannot in foaming process
Recycle.And polystyrene(PS)Would generally have unfavorable to environment using to HCFC or butane in foaming process
Affect, product degraded is difficult and easily forms " white pollution ", and environmental protection organization of the United Nations is it is determined that stop using PS foamed products.
Crosslinked PE foam is rigidly relatively low, and maximum operation (service) temperature is 80 DEG C.
Contrast above foamed plastics, PP foam material has many good qualities:1) polypropylene(PP)Rigidity is better than polyethylene
(PE), PP bending moduluses are about 1.52Gpa, and PE is only 207Mpa, and chemical resistance is similar to PE.2) polyacrylic vitrifying
Temperature is less than room temperature, and shock resistance is better than PS, and compares the difficult recyclability of PS foams, and polypropylene foam is a kind of environment friend
Good material.3) polypropylene has higher heat distortion temperature, can apply in some high-temperature fields.Expanded polypropylene is usual
130 DEG C of high temperature is resistant to, it is more much higher than 80 DEG C of the maximum operation (service) temperature of polyethylene.Closed foam structure makes its thermal conductivity
Will not be impacted because moist, therefore can be used as insulation material.4) good low-temperature characteristics:Even if product also table at -30 DEG C
Reveal good performance.5) energy absorption:Because PP foaming products have good energy absorption characteristic, resist with excellent
Pressure energy absorption performance.It is widely used in bumper energy processing system and other Anti-knocking energy absorbing components.6) size shape is extensive
Multiple stability:PP foaming products can quickly be recovered original-shape by after repeatedly continuous shock and deflection deformation, and not produced permanent
Deformation.7) light weight and being capable of Reusability:The density of PP foaming products can reach very low level, therefore can significantly drop
Low weight, while PP foaming products pliability is good, can Reusability, it is not broken;Easily recycling, easily decomposes, and product is not
Containing to the poisonous and hazardous composition of human body, burning does not produce noxious material.8) with good surface protective and sound insulation value:
PP foaming products are semi-rigid shapings, and hardness, flexibility with appropriateness will not be abraded, the object being in contact with it of damaging, had
Preferable surface protective.At present EPP expanded particles are mostly realized by batch (-type) foaming, due to production technology it is more multiple
It is miscellaneous, it is relatively costly.Polypropylene foaming beads have a good processing characteristics, but due to PP mechanical strengths itself it is not high, shrinkage factor
It is not strong with dimensional stability, application is limited significantly.Adding mineral and fiber in polymeric matrix can improve
It is low polypropylene foaming beads mechanical property to be easily caused after the mechanical strength of polypropylene foaming beads, but addition mineral and fiber
Under, and high-temperature resistant result also cannot be obviously improved, there is technical problem that is damaged and subsiding in foam structure.
The content of the invention
The technical problem to be solved is:
(1) how the intensity and shock resistance of polypropylene foaming beads improved by adding high intensity system;
(2) cause polypropylene foaming beads mechanical property low after how improving due to adding high intensity system, and foam structure
There is technical problem that is damaged and subsiding.
The present invention solves the technical scheme of above technical problem:
A kind of high-strength polypropylene expanded bead, including polypropylene matrix, the component of the weight portion of polypropylene matrix includes:Poly- third
Olefine resin:105-107 parts, 3- hydroxypropionitriles:1-3 parts, adjacent methyl hydroquinone:0.3-0.5 parts, nucleator:2.6-2.8 parts,
Antioxidant:3.1-3.3 part, lubricant:1.2-1.5 part, filler:6.5-6.7 part;Also bag high intensity system, high intensity system
Addition is the 13-15% of polypropylene-base body weight;The component of the weight portion of high intensity system is configured to:Nano silicon:
6.7-6.9 part, ethoxylated alkylamine:15-17 parts, Methyl Hydrogen Polysiloxane Fluid:91-93 parts, hydroxyl dimethyl silicone polymer:7.7-
7.9 parts, vinyltrimethoxy silane:8-10 parts, APP:3.5-3.7 part, short glass fiber:17-19 parts, nanometer
Montmorillonite 32-35 parts, fume colloidal silica:9.5-9.7 part, gamma-aminopropyl-triethoxy-silane:12-15 parts, alkyl phenol polyoxy
Vinethene:2.1-2.3 part, toughener:7-9 parts, reactive diluent:0.5-0.7 parts, compatilizer:0.5-0.7 parts, coupling agent:
1.1-1.3 part, levelling agent:1.5-1.7 part, mixed chlorinated rare earth:0.3-0.5 parts;Wherein, the particle diameter of nano silicon is
20-30nm, the particle diameter of nano imvite is 20-30nm.
The production technology of high-strength polypropylene expanded bead, comprises the following steps:
(i) each component is uniformly mixed in proportion;
(ii) by said mixture through double screw extruder extruding pelletization into can be used for foam raw material;
(iii) above-mentioned raw materials are taken and is placed in foaming dedicated extruder, while the supercritical carbon dioxide for injecting weight proportion for 5-15 parts does
Foaming agent, after being sufficiently mixed by foaming dedicated extruder, foams from die extrusion and shapes.
The technical scheme that further limits of the invention is:
Aforesaid high-strength polypropylene expanded bead, wherein, nucleator be silica, calcium carbonate, carbon black, graphite, talcum powder,
One or more mixtures of inorganic oxide;Antioxidant is antioxidant 1010, antioxidant 300, irgasfos 168, antioxygen
One or more mixtures of agent 1076;Lubricant is lubricant EDS, lubricant MB50-002, lubricant L YSI-100
One or more mixtures;Filler is one or more mixing of carbon black, graphite, magnesium hydroxide.
Aforesaid high-strength polypropylene expanded bead, wherein, toughener is styrene butadiene thermoplasticelastomer, chlorine
Change polyethylene or one or more mixtures in ethylene-vinyl acetate copolymer;Reactive diluent is alkyl shrink
Shrinking glycerin ether, pungent certain herbaceous plants with big flowers acid glycidyl ester, trihydroxymethylpropanyltri diglycidyl ether, toluene glycidol ether, castor oil more
One or more mixtures in glycerin ether;Compatilizer is maleic anhydride grafted PP;Coupling agent is vinyl
In tributanoximo silane coupling agent, methylvinyldichlorosilane coupling agent, methyl tributanoximo silane coupling agent one
Plant or more than one mixtures;Levelling agent be isophorone, DAA, fluorin modified crylic acid, phosphate modified acrylic acid, third
One or more mixing in olefin(e) acid, dimethyl silicone polymer, poly- methyl alkyl siloxane, organic modified polyorganosiloxane
Thing.
The invention has the beneficial effects as follows:Experimental result shows that the high intensity system of the present invention effectively RPP can be sent out
The intensity and shrinkage factor of bubble bead, intensity and shrinkage factor can reach the respective performances of ABS;When by " nano silicon, second
Epoxide alkylamine, Methyl Hydrogen Polysiloxane Fluid, hydroxyl dimethyl silicone polymer, vinyltrimethoxy silane, APP, be chopped
Glass fibre, nano imvite, fume colloidal silica, gamma-aminopropyl-triethoxy-silane, APES and toughness reinforcing
The high intensity system of agent " composition is added after polypropylene-base body weight, can make invention high-strength polypropylene expanded bead impact resistance
More than 5 times can be improved compared with polypropylene matrix, intensity improves more than 30%, and rigidity is guaranteed;And it is reactive diluent, compatible
There is synergistic effect in the addition of agent, coupling agent, levelling agent and mixed chlorinated rare earth, significantly can further lift polypropylene of the present invention
The shock resistance and intensity of expanded bead, can make invention high-strength polypropylene expanded bead shock resistance compared with polypropylene matrix
More than 8 times can be improved, intensity improves more than 50%.But by SEM observation find, " nano silicon, ethoxylated alkylamine,
Methyl Hydrogen Polysiloxane Fluid, hydroxyl dimethyl silicone polymer, vinyltrimethoxy silane, APP, short glass fiber, nanometer
It is high-strength that montmorillonite, fume colloidal silica, gamma-aminopropyl-triethoxy-silane, APES and toughener " is constituted
Degree system dispersiveness in polypropylene matrix is poor, adds reactive diluent, compatilizer, coupling agent, levelling agent and mixed chlorinated
The dispersiveness of flame-retardant system can be improved after rare earth;In addition, using supercritical CO2Batch-foamed process prepares polypropylene expanded pearl
During grain, " nano silicon, ethoxylated alkylamine, Methyl Hydrogen Polysiloxane Fluid, hydroxyl dimethyl silicone polymer, vinyl front three
TMOS, APP, short glass fiber, nano imvite, fume colloidal silica, gamma-aminopropyl-triethoxy-silane,
The addition of the high intensity system of APES and toughener " composition can make the mechanics of polypropylene foaming beads of the present invention
Performance is compared polypropylene matrix and has been declined, but with the addition of reactive diluent, compatilizer, coupling agent, levelling agent and mixed chlorinated
Their mechanical property can be made after rare earth to make moderate progress;Found by ESEM, " nano silicon, ethoxylated alkyl
Amine, Methyl Hydrogen Polysiloxane Fluid, hydroxyl dimethyl silicone polymer, vinyltrimethoxy silane, APP, short glass fiber,
Nano imvite, fume colloidal silica, gamma-aminopropyl-triethoxy-silane, APES and toughener " composition
The foam structure of expanded material exists damaged and subsides after the addition of high intensity system, and adds reactive diluent, compatilizer, coupling
Its compatibility with polypropylene matrix can be improved after agent, levelling agent and mixed chlorinated rare earth, the bubble of polypropylene foaming beads is made
Pore structure is more regular, and abscess aperture reduces, hole density increase.Synthesis result shows, when the addition of high intensity system of the present invention
For polypropylene-base body weight 13-15% when, the shock resistance of polypropylene foaming beads compared with polypropylene matrix can improve 8 times with
On, intensity improves more than 50%, and its shock resistance, intensity and mechanical property and four kinds of performances of heat endurance reach one and put down
Weigh point, and shock resistance, intensity and mechanical property and heat endurance are more excellent.In addition, experimental result shows, the present invention is high-strength
The addition of degree system can also be effectively improved the resistance to elevated temperatures of polypropylene foaming beads so as to be resistant to 200-250 DEG C of high temperature;Separately
Outward, moreover it is possible to effectively improve the antistatic performance and fire resistance of polypropylene foaming beads, limited oxygen index can be made from existing poly- third
17% or so of alkene expanded bead is promoted to 29% or so of the present invention, and smoke is little when burning, and environmental friendliness is obtained and expected not
The technique effect for arriving.In sum, the present invention can improve the shock resistance of polypropylene foaming beads by adding high intensity system
Performance, intensity, resistance to elevated temperatures, fire resistance, mechanical property, thermal stability and antistatic property.
Specific embodiment
Embodiment 1
The present embodiment is a kind of high-strength polypropylene expanded bead, including polypropylene matrix, the group of the weight portion of polypropylene matrix
Dividing includes:Acrylic resin:105 parts, 3- hydroxypropionitriles:1 part, adjacent methyl hydroquinone:0.3 part, nucleator:2.6 parts, antioxygen
Agent:3.1 part, lubricant:1.2 parts, filler:6.5 part;Also bag high intensity system, the addition of high intensity system is polypropylene-base
The 13% of body weight;The component of the weight portion of high intensity system is configured to:Nano silicon:6.7 parts, ethoxylated alkylamine:
15 parts, Methyl Hydrogen Polysiloxane Fluid:91 parts, hydroxyl dimethyl silicone polymer:7.7 parts, vinyltrimethoxy silane:8 parts, polyphosphoric acid
Ammonium:3.5 parts, short glass fiber:17 parts, nano imvite:32 parts, fume colloidal silica:9.5 parts, the ethoxy of γ-aminopropyl three
Base silane:12 parts, APES:2.1 parts, toughener:7 parts, reactive diluent:0.5 part, compatilizer:0.5 part,
Coupling agent:1.1 part, levelling agent:1.5 parts, mixed chlorinated rare earth:0.3 part;The particle diameter of nano silicon is 20nm, and nanometer is covered
The particle diameter for taking off soil is 20nm.
Wherein, nucleator is silica, calcium carbonate, carbon black, graphite, talcum powder, one kind of inorganic oxide or one kind
Thing mixed above;Antioxidant be antioxidant 1010, antioxidant 300, irgasfos 168, antioxidant 1076 one or more
Mixture;Lubricant is one or more mixing of lubricant EDS, lubricant MB50-002, lubricant L YSI-100
Thing;Filler is one or more mixing of carbon black, graphite, magnesium hydroxide;Toughener is styrene-butadiene thermoplastic elastomehc
One or more mixtures in gonosome, haloflex or ethylene-vinyl acetate copolymer;Reactive diluent is alkane
Base glycidol ether, pungent certain herbaceous plants with big flowers acid glycidyl ester, trihydroxymethylpropanyltri diglycidyl ether, toluene glycidol ether, castor oil
One or more mixtures in polyglycidyl ether;Compatilizer is maleic anhydride grafted PP;Coupling agent is
Vinyl tributyl ketoximyl silane coupling agent, methylvinyldichlorosilane coupling agent, methyl tributanoximo silane coupling agent
In one or more mixtures;Levelling agent be isophorone, DAA, fluorin modified crylic acid, phosphate modified third
One kind or one kind in olefin(e) acid, acrylic acid, dimethyl silicone polymer, poly- methyl alkyl siloxane, organic modified polyorganosiloxane with
Upper mixture.
The production technology of the high-strength polypropylene expanded bead of the present embodiment, comprises the following steps:(i) by each component press than
The uniform mixing of example;(ii) by said mixture through double screw extruder extruding pelletization into can be used for foam raw material;(iii) take above-mentioned
Raw material is placed in foaming dedicated extruder, while inject weight proportion makees foaming agent for the supercritical carbon dioxide of 5-15 parts, by sending out
After bubble dedicated extruder is sufficiently mixed, foams from die extrusion and shape.
Embodiment 2
The present embodiment is a kind of high-strength polypropylene expanded bead, including polypropylene matrix, the group of the weight portion of polypropylene matrix
Dividing includes:Acrylic resin:106 parts, 3- hydroxypropionitriles:2 parts, adjacent methyl hydroquinone:0.4 part, nucleator:2.7 parts, antioxygen
Agent:3.2 part, lubricant:1.3 parts, filler:6.6 part;Also bag high intensity system, the addition of high intensity system is polypropylene-base
The 14% of body weight;The component of the weight portion of high intensity system is configured to:Nano silicon:6.8 parts, ethoxylated alkylamine:
16 parts, Methyl Hydrogen Polysiloxane Fluid:92 parts, hydroxyl dimethyl silicone polymer:7.8 parts, vinyltrimethoxy silane:9 parts, polyphosphoric acid
Ammonium:3.6 parts, short glass fiber:18 parts, nano imvite:33 parts, fume colloidal silica:9.6 parts, the ethoxy of γ-aminopropyl three
Base silane:13 parts, APES:2.2 parts, toughener:8 parts, reactive diluent:0.6 part, compatilizer:0.6 part,
Coupling agent:1.2 parts, levelling agent:1.6 parts, mixed chlorinated rare earth:0.4 part;The particle diameter of nano silicon is 25nm, and nanometer is covered
The particle diameter for taking off soil is 25nm.
Wherein, nucleator is silica, calcium carbonate, carbon black, graphite, talcum powder, one kind of inorganic oxide or one kind
Thing mixed above;Antioxidant be antioxidant 1010, antioxidant 300, irgasfos 168, antioxidant 1076 one or more
Mixture;Lubricant is one or more mixing of lubricant EDS, lubricant MB50-002, lubricant L YSI-100
Thing;Filler is one or more mixing of carbon black, graphite, magnesium hydroxide;Toughener is styrene-butadiene thermoplastic elastomehc
One or more mixtures in gonosome, haloflex or ethylene-vinyl acetate copolymer;Reactive diluent is alkane
Base glycidol ether, pungent certain herbaceous plants with big flowers acid glycidyl ester, trihydroxymethylpropanyltri diglycidyl ether, toluene glycidol ether, castor oil
One or more mixtures in polyglycidyl ether;Compatilizer is maleic anhydride grafted PP;Coupling agent is
Vinyl tributyl ketoximyl silane coupling agent, methylvinyldichlorosilane coupling agent, methyl tributanoximo silane coupling agent
In one or more mixtures;Levelling agent be isophorone, DAA, fluorin modified crylic acid, phosphate modified third
One kind or one kind in olefin(e) acid, acrylic acid, dimethyl silicone polymer, poly- methyl alkyl siloxane, organic modified polyorganosiloxane with
Upper mixture.
The production technology of the high-strength polypropylene expanded bead of the present embodiment, comprises the following steps:(i) by each component press than
The uniform mixing of example;(ii) by said mixture through double screw extruder extruding pelletization into can be used for foam raw material;(iii) take above-mentioned
Raw material is placed in foaming dedicated extruder, while inject weight proportion makees foaming agent for the supercritical carbon dioxide of 5-15 parts, by sending out
After bubble dedicated extruder is sufficiently mixed, foams from die extrusion and shape.
Embodiment 3
The present embodiment is a kind of high-strength polypropylene expanded bead, including polypropylene matrix, the group of the weight portion of polypropylene matrix
Dividing includes:Acrylic resin:107 parts, 3- hydroxypropionitriles:3 parts, adjacent methyl hydroquinone:0.5 part, nucleator:2.8 parts, antioxygen
Agent:3.3 parts, lubricant:1.5 parts, filler:6.7 part;Also bag high intensity system, the addition of high intensity system is polypropylene-base
The 15% of body weight;The component of the weight portion of high intensity system is configured to:Nano silicon:6.9 parts, ethoxylated alkylamine:
17 parts, Methyl Hydrogen Polysiloxane Fluid:93 parts, hydroxyl dimethyl silicone polymer:7.9 parts, vinyltrimethoxy silane:10 parts, poly- phosphorus
Sour ammonium:3.7 parts, short glass fiber:19 parts, nano imvite:35 parts, fume colloidal silica:9.7 parts, the second of γ-aminopropyl three
TMOS:15 parts, APES:2.3 parts, toughener:9 parts, reactive diluent:0.7 part, compatilizer:0.7
Part, coupling agent:1.3 parts, levelling agent:1.7 parts, mixed chlorinated rare earth:0.5 part;The particle diameter of nano silicon is 30nm, is received
The particle diameter of rice montmorillonite is 30nm.
Wherein, nucleator is silica, calcium carbonate, carbon black, graphite, talcum powder, one kind of inorganic oxide or one kind
Thing mixed above;Antioxidant be antioxidant 1010, antioxidant 300, irgasfos 168, antioxidant 1076 one or more
Mixture;Lubricant is one or more mixing of lubricant EDS, lubricant MB50-002, lubricant L YSI-100
Thing;Filler is one or more mixing of carbon black, graphite, magnesium hydroxide;Toughener is styrene-butadiene thermoplastic elastomehc
One or more mixtures in gonosome, haloflex or ethylene-vinyl acetate copolymer;Reactive diluent is alkane
Base glycidol ether, pungent certain herbaceous plants with big flowers acid glycidyl ester, trihydroxymethylpropanyltri diglycidyl ether, toluene glycidol ether, castor oil
One or more mixtures in polyglycidyl ether;Compatilizer is maleic anhydride grafted PP;Coupling agent is
Vinyl tributyl ketoximyl silane coupling agent, methylvinyldichlorosilane coupling agent, methyl tributanoximo silane coupling agent
In one or more mixtures;Levelling agent be isophorone, DAA, fluorin modified crylic acid, phosphate modified third
One kind or one kind in olefin(e) acid, acrylic acid, dimethyl silicone polymer, poly- methyl alkyl siloxane, organic modified polyorganosiloxane with
Upper mixture.
The production technology of the high-strength polypropylene expanded bead of the present embodiment, comprises the following steps:(i) by each component press than
The uniform mixing of example;(ii) by said mixture through double screw extruder extruding pelletization into can be used for foam raw material;(iii) take above-mentioned
Raw material is placed in foaming dedicated extruder, while inject weight proportion makees foaming agent for the supercritical carbon dioxide of 5-15 parts, by sending out
After bubble dedicated extruder is sufficiently mixed, foams from die extrusion and shape.
In addition to the implementation, the present invention can also have other embodiment.All employing equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (7)
1. a kind of high-strength polypropylene expanded bead, including polypropylene matrix, the component bag of the weight portion of the polypropylene matrix
Include:Acrylic resin:105-107 parts, 3- hydroxypropionitriles:1-3 parts, adjacent methyl hydroquinone:0.3-0.5 parts, nucleator:2.6-
2.8 parts, antioxidant:3.1-3.3 part, lubricant:1.2-1.5 part, filler:6.5-6.7 part;It is characterized in that:Also bag high intensity
System, the addition of the high intensity system is the 13-15% of the polypropylene-base body weight;The weight of the high intensity system
The component of part is configured to:Nano silicon:6.7-6.9 part, ethoxylated alkylamine:15-17 parts, Methyl Hydrogen Polysiloxane Fluid:91-
93 parts, hydroxyl dimethyl silicone polymer:7.7-7.9 part, vinyltrimethoxy silane:8-10 parts, APP:3.5-3.7
Part, short glass fiber:17-19 parts, nano imvite 32-35 parts, fume colloidal silica:9.5-9.7 parts, γ-aminopropyl three
Ethoxysilane:12-15 parts, APES:2.1-2.3 part, toughener:7-9 parts, reactive diluent:0.5-0.7
Part, compatilizer:0.5-0.7 parts, coupling agent:1.1-1.3 part, levelling agent:1.5-1.7 part, mixed chlorinated rare earth:0.3-0.5 parts;
The particle diameter of described nano silicon is 20-30nm, and the particle diameter of described nano imvite is 20-30nm.
2. high-strength polypropylene expanded bead as claimed in claim 1, it is characterised in that:The nucleator be silica,
Calcium carbonate, carbon black, graphite, talcum powder, one or more mixtures of inorganic oxide;The antioxidant is antioxidant
1010th, one or more mixtures of antioxidant 300, irgasfos 168, antioxidant 1076;Described lubricant is lubrication
Agent EDS, lubricant MB50-002, one or more mixtures of lubricant L YSI-100;Described filler is carbon black, stone
One or more mixing of ink, magnesium hydroxide.
3. high-strength polypropylene expanded bead as claimed in claim 1, it is characterised in that:The toughener is styrene-fourth
One or more mixtures in two thermoplastic olefinic elastomers, haloflex or ethylene-vinyl acetate copolymer;Institute
Reactive diluent is stated for alkyl glycidyl ether, pungent certain herbaceous plants with big flowers acid glycidyl ester, trihydroxymethylpropanyltri diglycidyl ether, toluene contracting
One or more mixtures in water glycerin ether, castor oil polyglycidyl ether;The compatilizer is maleic anhydride grafting
Modified polypropene;The coupling agent is vinyl tributyl ketoximyl silane coupling agent, methylvinyldichlorosilane coupling agent, first
One or more mixtures in base tributanoximo silane coupling agent;The levelling agent be isophorone, DAA,
It is fluorin modified crylic acid, phosphate modified acrylic acid, acrylic acid, dimethyl silicone polymer, poly- methyl alkyl siloxane, organically-modified
One or more mixtures in polysiloxanes.
4. the high-strength polypropylene expanded bead as described in claim 1 or 2 or 3, it is characterised in that:Including polypropylene matrix,
The component of the weight portion of the polypropylene matrix includes:Acrylic resin:105 parts, 3- hydroxypropionitriles:1 part, adjacent methyl is to benzene two
Phenol:0.3 part, nucleator:2.6 parts, antioxidant:3.1 part, lubricant:1.2 part, filler:6.5 part;Also bag high intensity system, institute
The addition for stating high intensity system is the 13% of the polypropylene-base body weight;The component structure of the weight portion of the high intensity system
Become:Nano silicon:6.7 parts, ethoxylated alkylamine:15 parts, Methyl Hydrogen Polysiloxane Fluid:91 parts, hydroxyl poly dimethyl silicon
Oxygen alkane:7.7 parts, vinyltrimethoxy silane:8 parts, APP:3.5 parts, short glass fiber:17 parts, nanometer is covered de-
Soil:32 parts, fume colloidal silica:9.5 part, gamma-aminopropyl-triethoxy-silane:12 parts, APES:2.1 parts,
Toughener:7 parts, reactive diluent:0.5 part, compatilizer:0.5 part, coupling agent:1.1 parts, levelling agent:It is 1.5 parts, mixed chlorinated dilute
Soil:0.3 part;The particle diameter of described nano silicon is 20nm, and the particle diameter of described nano imvite is 20nm.
5. the high-strength polypropylene expanded bead as described in claim 1 or 2 or 3, it is characterised in that:Including polypropylene matrix,
The component of the weight portion of the polypropylene matrix includes:Acrylic resin:106 parts, 3- hydroxypropionitriles:2 parts, adjacent methyl is to benzene two
Phenol:0.4 part, nucleator:2.7 part, antioxidant:3.2 parts, lubricant:1.3 part, filler:6.6 part;Also bag high intensity system, institute
The addition for stating high intensity system is the 14% of the polypropylene-base body weight;The component structure of the weight portion of the high intensity system
Become:Nano silicon:6.8 parts, ethoxylated alkylamine:16 parts, Methyl Hydrogen Polysiloxane Fluid:92 parts, hydroxyl poly dimethyl silicon
Oxygen alkane:7.8 parts, vinyltrimethoxy silane:9 parts, APP:3.6 parts, short glass fiber:18 parts, nanometer is covered de-
Soil:33 parts, fume colloidal silica:9.6 parts, gamma-aminopropyl-triethoxy-silane:13 parts, APES:2.2 parts,
Toughener:8 parts, reactive diluent:0.6 part, compatilizer:0.6 part, coupling agent:1.2 parts, levelling agent:It is 1.6 parts, mixed chlorinated dilute
Soil:0.4 part;The particle diameter of described nano silicon is 25nm, and the particle diameter of described nano imvite is 25nm.
6. the high-strength polypropylene expanded bead as described in claim 1 or 2 or 3, it is characterised in that:Including polypropylene matrix,
The component of the weight portion of the polypropylene matrix includes:Acrylic resin:107 parts, 3- hydroxypropionitriles:3 parts, adjacent methyl is to benzene two
Phenol:0.5 part, nucleator:2.8 part, antioxidant:3.3 part, lubricant:1.5 parts, filler:6.7 part;Also bag high intensity system, institute
The addition for stating high intensity system is the 15% of the polypropylene-base body weight;The component structure of the weight portion of the high intensity system
Become:Nano silicon:6.9 parts, ethoxylated alkylamine:17 parts, Methyl Hydrogen Polysiloxane Fluid:93 parts, hydroxyl poly dimethyl silicon
Oxygen alkane:7.9 parts, vinyltrimethoxy silane:10 parts, APP:3.7 parts, short glass fiber:19 parts, nanometer is covered de-
Soil:35 parts, fume colloidal silica:9.7 parts, gamma-aminopropyl-triethoxy-silane:15 parts, APES:2.3 parts,
Toughener:9 parts, reactive diluent:0.7 part, compatilizer:0.7 part, coupling agent:1.3 part, levelling agent:It is 1.7 parts, mixed chlorinated
Rare earth:0.5 part;The particle diameter of described nano silicon is 30nm, and the particle diameter of described nano imvite is 30nm.
7. the production technology of the high-strength polypropylene expanded bead as described in any claim in claim 1-3, its feature
It is:Comprise the following steps:
(i) each component is uniformly mixed in proportion;
(ii) by said mixture through double screw extruder extruding pelletization into can be used for foam raw material;
(iii) above-mentioned raw materials are taken and is placed in foaming dedicated extruder, while the supercritical carbon dioxide for injecting weight proportion for 5-15 parts does
Foaming agent, after being sufficiently mixed by foaming dedicated extruder, foams from die extrusion and shapes.
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CN108623916A (en) * | 2018-06-14 | 2018-10-09 | 桂晶晶 | A kind of heat-resisting PP plastics of the halogen-free flameproof of environment-friendly degradable and preparation method thereof |
CN108841082A (en) * | 2018-06-21 | 2018-11-20 | 张俊杰 | A kind of glass fiber reinforcement PP/PA composite modification material |
CN114106459A (en) * | 2021-11-23 | 2022-03-01 | 广东富强科技股份有限公司 | Micro-foaming polypropylene composite material and preparation method and application thereof |
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