CN105440307A - Lubricant and mica-filled polypropylene compound with lubricant - Google Patents
Lubricant and mica-filled polypropylene compound with lubricant Download PDFInfo
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- CN105440307A CN105440307A CN201510932376.0A CN201510932376A CN105440307A CN 105440307 A CN105440307 A CN 105440307A CN 201510932376 A CN201510932376 A CN 201510932376A CN 105440307 A CN105440307 A CN 105440307A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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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
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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Abstract
The invention provides a lubricant and a mica-filled polypropylene compound with the lubricant. The lubricant comprises metallic soap, amide and silica according to a mass ratio of 1: (2-5): (1-3). The metallic soap comprises zinc stearate. The amide is a mixture of ethylene bis-stearamide, C18 fatty acid amide and C22 fatty acid amide and a mass ratio of ethylene bis-stearamide, C18 fatty acid amide to C22 fatty acid amide is 1: (1-3): (1-3). The mica-filled polypropylene compound with the lubricant comprises, by weight, 10-75 parts of polypropylene, 20-50 parts of mica, 3-10 parts of an ethylene-propylene copolymer, 2-30 parts of a compatilizer, 0.2-0.8 parts of a coupling agent, 0.4-1.6 parts of a dispersant and 1-3 parts of a lubricant. The mica-filled polypropylene compound with the lubricant has excellent compatibility and dispersibility and has no bright spots and whiting parts.
Description
Technical field
The invention belongs to polypropylene material technical field, especially relate to a kind of lubricant and use the cloud model controller mixture of this kind of lubricant.
Background technology
Polypropylene has the advantages such as density is little, price is low, easy processing, has been widely used in the industry such as automobile, household electrical appliances, but the low shortcoming of polypropylene poor dimensional stability, rigidity limits it applies further, needs to add mineral filler for this reason and carries out modification.
Conventional mineral filler comprises calcium carbonate, talcum powder, barium sulfate, mica etc.Relative to calcium carbonate, talcum powder, barium sulfate, mica has better rigidity and dimensional stability, obtains application in practice.But mica and polyacrylic consistency poor, usually add compatilizer, coupling agent etc., these methods all can improve mica and polyacrylic consistency.In mica modified polypropene, the addition of mica is usually many.Due to the distinctive laminate structure of mica and its outward appearance, after adding polypropylene to, easily cause surface to occur bright spot and blushing, and very easily cause mica modified polypropene product to occur buckling deformation phenomenon due to the existence of mica orientation.
Summary of the invention
In view of this, the present invention is intended to propose a kind of lubricant, effectively can reduce degree of orientation and the internal stress of cloud model controller mixture mica in the process of product injection moulding, and product is in the torsional forces assembled and be subject in use procedure and damping, thus significantly reduces buckling deformation phenomenon.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of lubricant, comprise metallic soap, acid amides, silicon-dioxide, the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:(2-5): (1-3); Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:(1-3): (1-3).
Further, described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, and particle diameter is 1-5mm, the acid number≤5.0mgKOH/g of described lubricant, total amine value≤3.0mgKOH/g.
Another object of the present invention is to propose a kind of cloud model controller mixture using described lubricant, make mica and polypropylene composite have more excellent consistency and dispersiveness, outward appearance is without bright spot and blushing.
For achieving the above object, technical scheme of the present invention is achieved in that
Use a cloud model controller mixture for described lubricant, comprise the component of following weight part:
In addition to the above components, other additive can be added as required, as toner, thermo-stabilizer, photostabilizer etc.
Further, described ethylene-propylene copolymer is the semicrystalline copolymers of ethene and copolymerization of propylene, and its ethylene content is 5%-20%, and density is 0.860-0.880g/cm
3, shore hardness is 60A-40D, and Vicat softening point is 40-80 DEG C, melt flow rate (MFR) 230 DEG C, be 3-50g/10min under the condition of 2.16kg.
Further, described polypropylene is powdery, and its median size is 50-300 μm; Described polypropylene is one or both the mixing in homo-polypropylene or Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 5-100g/10min under the condition of 2.16kg.
Further, described mica is the median size 10-400 μm of the aluminosilicate containing potassium, aluminium, magnesium, iron or lithium, mica.
Further, described compatilizer is maleic anhydride inoculated polypropylene modifier, and percentage of grafting is 1%-5%, melt flow rate (MFR) 230 DEG C, be 20-100g/10min under the condition of 2.16kg; Described coupling agent is amino silicane coupling agent, its purity>=98%, and relative density is 0.94-0.95g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 90-100mm
2/ s, the kinematic viscosity at 100 DEG C is 10-15mm
2/ s, density is 0.87-0.90g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 3-10s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is (32-48): 1, and the processing temperature of twin screw extruder is 180-230 DEG C, vacuum tightness≤-0.1MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
A purposes for described cloud model controller mixture, described cloud model controller mixture is applied in automotive industry; Preferably, described cloud model controller mixture is applied to the production of automative air conditioning product.
Relative to prior art, lubricant of the present invention has following advantage:
(1) lubricant of the present invention effectively can reduce degree of orientation and the internal stress of cloud model controller mixture mica in the process of product injection moulding, and product is in the torsional forces assembled and be subject in use procedure and damping, thus significantly reduce buckling deformation phenomenon.
The cloud model controller mixture of the described lubricant of described use has following advantage:
(1) to select compatilizer, coupling agent, ethylene-propylene copolymer to carry out composite for the cloud model controller mixture of the described lubricant of use of the present invention, make mica and polypropylene composite have more excellent consistency and dispersiveness, outward appearance is without bright spot and blushing.Especially, when mica height fills content, outward appearance is without bright spot and blushing.
(2) the cloud model controller mixture of the described lubricant of use of the present invention selects ethylene-propylene copolymer and special lubricant, have excellent interior lubrication, outer lubrication, disorientation and anti effect concurrently, effectively can reduce degree of orientation and the internal stress of cloud model controller mixture mica in the process of product injection moulding, and product is in the torsional forces assembled and be subject in use procedure and damping, thus significantly reduce buckling deformation phenomenon.
(3) preparation method of the cloud model controller mixture of the described lubricant of use of the present invention adopts coupling agent and dispersant to use, and adopt the method continuing to drip, coupling agent is made more to be evenly dispersed in mica and polypropylene matrix, solve the difficult point that coupling agent viscosity is large, be difficult to dispersion, and then the problem of the stability solved in cloud model controller mixture continuous seepage and homogeneity.
Embodiment
Unless otherwise indicated, term used herein all has the implication that those skilled in the art's routine is understood, and for the ease of understanding the present invention, terms more used herein has been carried out following definitions.
All Digital IDs, such as pH, temperature, time, concentration, comprise scope, is all approximation.Understand, although not always clear and definite describe all Digital IDs before all add term " about ".Also will understand, describe although always not clear and definite, reagent described herein is only example, and its Equivalent is known in the art simultaneously.
The present invention is described in detail below in conjunction with embodiment.
Embodiment 1
A kind of lubricant, comprise metallic soap, acid amides, silicon-dioxide, the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:3:1; Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:1:1.
Described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, and particle diameter is 5mm, the acid number 4.8mgKOH/g of described lubricant, total amine value 2.9mgKOH/g.
A kind of cloud model controller mixture using described lubricant, comprise the component of following weight part: polypropylene 75kg, mica 20kg, ethylene-propylene copolymer 3kg, compatilizer 2kg, coupling agent 0.2kg, dispersion agent 0.4kg, lubricant 1kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is homo-polypropylene, its melt flow rate (MFR) 230 DEG C, be 26g/10min under the condition of 2.16kg, median size is 300 μm.Described mica median size 400 μm.The ethylene content of described ethylene-propylene copolymer is 15%, and density is 0.863g/cm
3, shore hardness is 63A, and Vicat softening point is 47 DEG C, melt flow rate (MFR) 230 DEG C, be 20g/10min under the condition of 2.16kg.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 40g/10min under the condition of 2.16kg, percentage of grafting is 2.5%, and described coupling agent is amino silicane coupling agent, purity 98.2%, and relative density is 0.946g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 90mm
2/ s, the kinematic viscosity at 100 DEG C is 10mm
2/ s, density is 0.872g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 3s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 48:1, and the processing temperature of twin screw extruder is 230 DEG C, vacuum tightness-0.1MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
A purposes for described cloud model controller mixture, described cloud model controller mixture is applied in automotive industry.
Embodiment 2
A kind of lubricant, comprise metallic soap, acid amides, silicon-dioxide, the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:5:3; Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:3:3.
Described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, and particle diameter is 1mm, the acid number 2.2mgKOH/g of described lubricant, total amine value 1.1mgKOH/g.
A kind of cloud model controller mixture using described lubricant, comprise the component of following weight part: polypropylene 55kg, mica 30kg, ethylene-propylene copolymer 5kg, compatilizer 10kg, coupling agent 0.4kg, dispersion agent 0.8kg, lubricant 1.5kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is homo-polypropylene, its melt flow rate (MFR) 230 DEG C, be 5g/10min under the condition of 2.16kg, median size is 50 μm.Described mica median size 10 μm.The ethylene content of described ethylene-propylene copolymer is 11%, and density is 0.874g/cm
3, shore hardness is 34D, and Vicat softening point is 68 DEG C, melt flow rate (MFR) 230 DEG C, be 3g/10min under the condition of 2.16kg.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 20g/10min under the condition of 2.16kg, percentage of grafting is 1.0%, and described coupling agent is amino silicane coupling agent, purity 98.8%, and relative density is 0.950g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 100mm
2/ s, the kinematic viscosity at 100 DEG C is 15mm
2/ s, density is 0.900g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 5s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 44:1, and the processing temperature of twin screw extruder is 220 DEG C, vacuum tightness-0.12MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
A purposes for described cloud model controller mixture, described cloud model controller mixture is applied in automotive industry.
Embodiment 3
A kind of lubricant, comprise metallic soap, acid amides, silicon-dioxide, the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:3:1; Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:1:1.
Described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, and particle diameter is 4mm, the acid number 3.1mgKOH/g of described lubricant, total amine value 1.4mgKOH/g.
A kind of cloud model controller mixture using described lubricant, comprise the component of following weight part: polypropylene 33kg, mica 40kg, ethylene-propylene copolymer 7kg, compatilizer 20kg, coupling agent 0.6kg, dispersion agent 1.2kg, lubricant 2kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 55g/10min under the condition of 2.16kg, median size is 120 μm.Described mica median size 75 μm.The ethylene content of described ethylene-propylene copolymer is 9%, and density is 0.878g/cm
3, shore hardness is 40D, and Vicat softening point is 77 DEG C, melt flow rate (MFR) 230 DEG C, be 8g/10min under the condition of 2.16kg.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 60g/10min under the condition of 2.16kg, percentage of grafting is 4.0%, and described coupling agent is amino silicane coupling agent, purity 99.4%, and relative density is 0.940g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 97mm
2/ s, the kinematic viscosity at 100 DEG C is 13mm
2/ s, density is 0.882g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 8s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 38:1, and the processing temperature of twin screw extruder is 190 DEG C, vacuum tightness-0.12MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
A purposes for described cloud model controller mixture, described cloud model controller mixture is applied in automotive industry.
Embodiment 4
A kind of lubricant, comprise metallic soap, acid amides, silicon-dioxide, the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:3:1; Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:1:1.
Described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, and particle diameter is 2mm, the acid number 4.0mgKOH/g of described lubricant, total amine value 2.2mgKOH/g.
A kind of cloud model controller mixture using described lubricant, comprise the component of following weight part: polypropylene 10kg, mica 50kg, ethylene-propylene copolymer 10kg, compatilizer 30kg, coupling agent 0.8kg, dispersion agent 1.6kg, lubricant 3.0kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, median size is 250 μm.Described mica median size 180 μm.The ethylene content of described ethylene-propylene copolymer is 13%, and density is 0.865g/cm
3, shore hardness is 71A, and Vicat softening point is 52 DEG C, melt flow rate (MFR) 230 DEG C, be 48g/10min under the condition of 2.16kg.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, percentage of grafting is 5.0%, and described coupling agent is amino silicane coupling agent, purity 99.0%, relative density is 0.945g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 92mm
2/ s, the kinematic viscosity at 100 DEG C is 12mm
2/ s, density is 0.890g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 10s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 32:1, and the processing temperature of twin screw extruder is 180 DEG C, vacuum tightness-0.10MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
A purposes for described cloud model controller mixture, described cloud model controller mixture is applied in automotive industry.
Comparative example 1
A kind of cloud model controller mixture, comprise the component of following weight part: polypropylene 20kg, mica 50kg, compatilizer 30kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, median size is 250 μm.Described mica median size 180 μm.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, percentage of grafting is 5.0%.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) polypropylene, compatilizer are joined in mixing machine and mix, then in mixing machine, add mica, finally add other additive etc. and mix;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 32:1, and the processing temperature of twin screw extruder is 180 DEG C, vacuum tightness-0.10MPa.
Comparative example 2
A kind of cloud model controller mixture, comprise the component of following weight part: polypropylene 20kg, mica 50kg, compatilizer 30kg, coupling agent 0.8kg, dispersion agent 1.6kg, other additive 0.6kg, other additive is made up of by the mass ratio of 1:1:1 Hinered phenols antioxidant (vapour clings to IRGANOX1010), phosphite ester kind antioxidant (vapour clings to IRGAFOS168) and hindered amine light stabilizer (vapour clings to CHIMASSORB944).
Described polypropylene is Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, median size is 250 μm.Described mica median size 180 μm.Described compatilizer is the maleic anhydride inoculated polypropylene of modification, melt flow rate (MFR) 230 DEG C, be 100g/10min under the condition of 2.16kg, percentage of grafting is 5.0%, and described coupling agent is amino silicane coupling agent, purity 99.0%, relative density is 0.945g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 92mm
2/ s, the kinematic viscosity at 100 DEG C is 12mm
2/ s, density is 0.890g/cm
3.
A preparation method for described cloud model controller mixture, comprises the steps:
(1) polypropylene, compatilizer are joined in mixing machine and mix, then add coupling agent, dispersion agent, then add mica, finally add other additive etc. and mix;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
Further, the length-to-diameter ratio of described twin screw extruder is 32:1, and the processing temperature of twin screw extruder is 180 DEG C, vacuum tightness-0.10MPa.
The performance test of cloud model controller mixture:
The cloud model controller mixture prepared by embodiment 1-4 and comparative example 1-2 carries out injection moulding and prepares test bars after 80 DEG C of baking 2h, and carries out performance test according to following testing standard, the results are shown in Table 1:
(1) tensile strength: by GB/T1040 test, speed is 50mm/min.
(2) Izod notched impact strength: test by GB/T1843.
(3) modulus in flexure: by GB/T9341 test, speed is 2mm/min.
(4) melt flow rate (MFR): according to GB/T3682 test, test condition is 230 DEG C, 2.16kg.
(5) outward appearance: injection moulding 200*80*2mm rectangular slab, cast gate is spot pouring mouth, observes bright spot and the blushing of rectangular slab.
(6) buckling deformation: the wind turning page that injection molded automobile air-conditioning product-300mm is long, test buckling deformation amount, unit mm.
As can be seen from the product test result of each embodiment and comparative example in table 1, compared with embodiment 4, comparative example 1 does not use coupling agent, dispersion agent, ethylene-propylene copolymer and lubricant, and its surface exists bright spot and blushing, and mechanical property is obviously poor, deflection is large, comparative example 2 does not use ethylene-propylene copolymer and lubricant, although its mechanical property is better, there is bright spot, deflection is very large, cannot meet the needs of actual use.
Cloud model controller mixture of the present invention, selects compatilizer, coupling agent, ethylene-propylene copolymer to carry out composite, and make mica and polypropylene composite have more excellent consistency and dispersiveness, outward appearance is without bright spot and blushing.Select ethylene-propylene copolymer and specific lubricant, make cloud model controller mixture in the process of product injection moulding, decrease the orientation of mica, thus significantly reduce buckling deformation phenomenon.Adopt coupling agent and dispersant to use simultaneously, and adopt the method continuing to drip, coupling agent is made more to be evenly dispersed in mica and polypropylene matrix, solve the difficult point that coupling agent viscosity is large, be difficult to dispersion, and then solve cloud model controller mixture quantity-produced stability and homogeneity problem.Cloud model controller mixture excellent in mechanical performance of the present invention, outward appearance is good, buckling deformation is little, is applicable to automotive industry, is particularly useful for automative air conditioning product.
The performance index of table 1 cloud model controller mixture
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a lubricant, is characterized in that: comprise metallic soap, acid amides, silicon-dioxide, and the mass ratio of described metallic soap, acid amides, silicon-dioxide is: 1:(2-5): (1-3); Described metallic soap is Zinic stearas; Described acid amides is vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mixture of fatty acid amide, wherein, vinyl-bis--stearylamide, C
18fatty acid amide and C
22the mass ratio of fatty acid amide is 1:(1-3): (1-3).
2. lubricant according to claim 1, it is characterized in that: described lubricant is obtained by the method comprised the steps: be granular texture by metallic soap, acid amides, silicon-dioxide coldmoulding, particle diameter is 1-5mm, acid number≤the 5.0mgKOH/g of described lubricant, total amine value≤3.0mgKOH/g.
3. use a cloud model controller mixture for the lubricant described in claim 1 or 2, it is characterized in that: the component comprising following weight part:
4. cloud model controller mixture according to claim 3, is characterized in that: described ethylene-propylene copolymer is the semicrystalline copolymers of ethene and copolymerization of propylene, and its ethylene content is 5%-20%, and density is 0.860-0.880g/cm
3, shore hardness is 60A-40D, and Vicat softening point is 40-80 DEG C, melt flow rate (MFR) 230 DEG C, be 3-50g/10min under the condition of 2.16kg.
5. cloud model controller mixture according to claim 3, is characterized in that: described polypropylene is powdery, and its median size is 50-300 μm; Described polypropylene is one or both the mixing in homo-polypropylene or Co-polypropylene, its melt flow rate (MFR) 230 DEG C, be 5-100g/10min under the condition of 2.16kg.
6. cloud model controller mixture according to claim 3, is characterized in that: described mica is the median size 10-400 μm of the aluminosilicate containing potassium, aluminium, magnesium, iron or lithium, mica.
7. cloud model controller mixture according to claim 3, it is characterized in that: described compatilizer is maleic anhydride inoculated polypropylene modifier, percentage of grafting is 1%-5%, melt flow rate (MFR) 230 DEG C, be 20-100g/10min under the condition of 2.16kg; Described coupling agent is amino silicane coupling agent, its purity>=98%, and relative density is 0.94-0.95g/cm
3; Described dispersion agent is white mineral oil, and the kinematic viscosity at its 40 DEG C is 90-100mm
2/ s, the kinematic viscosity at 100 DEG C is 10-15mm
2/ s, density is 0.87-0.90g/cm
3.
8. the preparation method of the cloud model controller mixture according to any one of claim 3-7, is characterized in that: comprise the steps:
(1) coupling agent is joined in dispersion agent mix, polypropylene, ethylene-propylene copolymer, compatilizer are joined in mixing machine and mix, then in mixing machine, add the mixture of coupling agent and dispersion agent, add mica again, mix lubricant is even, now stop the mixture adding coupling agent and dispersion agent, continue mixing 3-10s;
(2) mixed material in step (1) is joined the main spout place of twin screw extruder, carry out melt blending, vacuum extruding granulation, namely obtain described cloud model controller mixture.
9. the preparation method of cloud model controller mixture according to claim 8, it is characterized in that: the length-to-diameter ratio of described twin screw extruder is (32-48): 1, the processing temperature of twin screw extruder is 180-230 DEG C, vacuum tightness≤-0.1MPa; The feed postition of described coupling agent and the mixture of dispersion agent is that persistent instillation adds, the mixture of coupling agent and dispersion agent add that initial time is polypropylene, after ethylene-propylene copolymer, compatilizer join and mix in mixing machine, the mixture of coupling agent and dispersion agent add the end time be mica, lubricant to join in mixing machine and after mixing.
10. the purposes of the cloud model controller mixture according to any one of claim 3-7, is characterized in that: described cloud model controller mixture is applied in automotive industry; Preferably, described cloud model controller mixture is applied to the production of automative air conditioning product.
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