CN106188855A - A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics - Google Patents

A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics Download PDF

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Publication number
CN106188855A
CN106188855A CN201610594831.5A CN201610594831A CN106188855A CN 106188855 A CN106188855 A CN 106188855A CN 201610594831 A CN201610594831 A CN 201610594831A CN 106188855 A CN106188855 A CN 106188855A
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CN
China
Prior art keywords
plastics
aluminum pigment
minute
dehydrated alcohol
corrosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610594831.5A
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Chinese (zh)
Inventor
董前年
徐俊军
徐曈曈
周涛
朱双单
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd
Original Assignee
HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd
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Application filed by HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd filed Critical HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd
Priority to CN201610594831.5A priority Critical patent/CN106188855A/en
Publication of CN106188855A publication Critical patent/CN106188855A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

The invention discloses a kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, be prepared by the raw materials in: flake aluminum 70 75, methacryloxypropyl trimethoxy silane 14 15, dehydrated alcohol are appropriate, trimethylolpropane trimethacrylate 28 30, acrylic acid 11 1.2, azodiisobutyronitrile 0.09 0.1, polyvinylpyrrolidone 1.75 1.9, glass fibre 45, polypropylene 15 17, zinc stearate 23, liquid paraffin 0.8 1, thio-2 acid stearate 0.8 1.The present invention also adds the composition such as glass fibre, polypropylene in the preparation of product, the product made can be improved with the plastic compatibility, preferably dispersion in the plastic, can avoid the dull phenomenon that the aluminum pigment caused at plastic extrusion or injection moulding process causes.

Description

A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics
Technical field
The present invention relates to pigment technology field, particularly relate to a kind of corrosion-resistant heat-staple strip aluminum face for plastics Material.
Background technology
Aluminum pigment is also known as aluminum paste, aluminum argentum powder, flake aluminum, and it has smooth and very thin sclay texture, is application One of most metallic effect pigments.Aluminum pigment possesses good antiseptic property, moreover it is possible to reflection visible ray, has argenteous gold Belong to gloss, also changing, so aluminum pigment has good decorative effect along with the intensity of the light of the different reflections of angle simultaneously; Aluminum pigment also can reflect infrared light and ultraviolet light, thus also have heat-insulating property and delay coating and rubber and ageing of plastics Effect.Along with country and the raising of social concerns degree, low-carbon (LC) is the most no longer a concept with the topic of environmental protection, but converts For out and out action.Along with material and the development of mould process, exempt to spray the new trend becoming modified plastics development, resin Directly it is molded into part and can meet the effect that the manufacturers such as dumb light, high light or flaring pearlescent require.Eliminate and spray paint Technique, just eliminates the injury to environment, and greatly reduces manufacturing cost.Household electrical appliances, automobile, electronic product industry working of plastics Application complete, along with level of consumption and the raising of price, at household electrical appliances product profit drastically generally by workman is manual While reduction, wage sharp rises, but the rising of recruitment cost has become enterprise and has been difficult to undertake the burden that must be born by again. Preparation has pearl effect, the plastic material of metal-like is directly used in the machine-shaping of household electrical appliances plastics appearance member and can reduce environment Pollute, improve product appearance class, reduce product cost, improve product competitiveness.So preparation is directly used in resin injection Aluminum pigment is particularly important, and the application in plastic industry of the aluminum pigment is increasingly praised highly.
In patent " a kind of strip aluminum pigment and preparation method thereof " by conventional aluminium pigment is carried out filter pressing then with High molecular polymer and auxiliary agent are extruded, and obtain the aluminum pigment of strip, and obtained aluminum pigment the most easily disperses, without powder Dirt, versatility is good, can greatly reduce current mark during plastic shaping, solves aluminum pigment bad scattered difficult problem in resin, but Resin and aluminum pigment and auxiliary agent are that during owing to extruding or being molded, temperature is all through high temperature melting twin screw again or Single screw extrusion Higher, the easy variable color of aluminum pigment or oxidation under high temperature, so that surface of the work metallochrome is dimmed, this is accomplished by being improved by modification The heat stability of aluminium powder, reduces the corrosivity of aluminum pigment.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of corrosion-resistant heat-staple for plastics Strip aluminum pigment.
The present invention is achieved by the following technical solutions:
A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, is prepared by the raw materials in: flake aluminum 70- 75, methacryloxypropyl trimethoxy silane 14-15, dehydrated alcohol be appropriate, trimethylolpropane trimethacrylate 28- 30, acrylic acid 1-1-1.2, azodiisobutyronitrile 0.09-0.1, polyvinylpyrrolidone 1.75-1.9, glass fibre 4-5, poly-third Alkene 15-17, zinc stearate 2-3, liquid paraffin 0.8-1, thio-2 acid stearate 0.8-1.
Described a kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, is made up of step in detail below:
(1) by the dehydrated alcohol of molten for methacryloxypropyl trimethoxy silane 4-5 times amount, it is subsequently adding flaky aluminum Powder, is heated to 55-60 DEG C, and after reacting 1-1.5 hour with absolute ethanol washing for several times, vacuum drying obtains coupling modifier aluminium powder;
(2) by coupling modifier aluminium powder adds the dehydrated alcohol of 2-3 times amount, put in reactor, add three hydroxyl first while stirring Base propane triacrylate, acrylic acid and be dissolved in the polyvinylpyrrolidone of equivalent dehydrated alcohol, be heated under nitrogen protection 70-80 DEG C, then constant temperature dropping azodiisobutyronitrile, then rise to 85 DEG C and react 30-40 minute, question response is further continued for after terminating Stir 50-60 minute, natural cooling, centrifugation, obtain filter cake, finally filter cake is put into rotary evaporator evaporates anhydrous Ethanol, obtains being grafted aluminium powder;
(3) glass fibre is pulverized, cross 100 mesh sieves, then stand-by with liquid paraffin mixed grinding 90-120 minute;By polypropylene It is heated to melting, puts in high speed mixer with zinc stearate and remaining residual components, mix with the speed of 800-1000 rev/min Add above-mentioned milled mixtures after closing 3-5 minute, continue mixing 5-8 minute, then discharging, crush, obtain modified additive;
(4) modified additive that grafting aluminium powder step (2) obtained obtains with step (3) mixes, and puts in double screw extruder Extruded shape growth 3-5mm, the cylinder of a diameter of 1-2mm, control extrusion temperature and be 90-120 DEG C, finally true at 50-60 DEG C Sky is dried 5-6 hour and get final product.
The invention have the advantage that the present invention first passes through methacryloxypropyl trimethoxy silane to flake aluminum Carry out coupling so that flake aluminum surface conversion is lipophile, be allowed to preferably mix with oiliness monomer, in order at particle surface Carry out home position polymerization reaction, be then polymerized by in-situ solution and trimethylolpropane trimethacrylate is coated on flake aluminum table Face, clad is uniform and thin, serves the effect increasing interparticle repulsive forces, is equivalent to the effect of dispersant, improves aluminium powder Dispersive property, simultaneously can intercept aluminium powder and directly contact with air, moisture, further increase the decay resistance of aluminium powder with And the activity of holding aluminium powder, the aluminium powder heat stability after cladding is greatly improved simultaneously.
The present invention also adds the composition such as glass fibre, polypropylene in the preparation of product so that the product made can be with The plastic compatibility improves, and preferably dispersion in the plastic, can avoid the aluminum face caused at plastic extrusion or injection moulding process The dull phenomenon that material causes;The product that the present invention makes the most easily disperses, and solvent-free, environmentally friendly, makes Frosting light smooths, and has metallic travel.
Detailed description of the invention
A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, is made up of the raw material of following weight portion (kilogram): Flake aluminum 70, methacryloxypropyl trimethoxy silane 14, dehydrated alcohol are appropriate, trimethylolpropane tris acrylic acid Ester 28, acrylic acid 1, azodiisobutyronitrile 0.09, polyvinylpyrrolidone 1.75, glass fibre 4, polypropylene 15, zinc stearate 2, liquid paraffin 0.8, thio-2 acid stearate 0.8.
Described a kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, is made up of step in detail below:
(1) by the dehydrated alcohol of molten for methacryloxypropyl trimethoxy silane 4 times amount, it is subsequently adding flake aluminum, Being heated to 55 DEG C, after reacting 1 hour with absolute ethanol washing for several times, vacuum drying obtains coupling modifier aluminium powder;
(2) by coupling modifier aluminium powder adds the dehydrated alcohol of 2 times amount, put in reactor, add trihydroxy methyl while stirring Propane triacrylate, acrylic acid and be dissolved in the polyvinylpyrrolidone of equivalent dehydrated alcohol, be heated to 70 under nitrogen protection DEG C, then constant temperature dropping azodiisobutyronitrile, then rise to 85 DEG C and react 30 minutes, question response is further continued for after terminating stirring 50 points Clock, natural cooling, centrifugation, obtain filter cake, finally filter cake is put into and rotary evaporator evaporates dehydrated alcohol, connect Branch aluminium powder;
(3) glass fibre is pulverized, cross 100 mesh sieves, then stand-by with liquid paraffin mixed grinding 90 minutes;Polypropylene is heated To melted, put in high speed mixer with zinc stearate and remaining residual components, after mixing 3 minutes with the speed of 800 revs/min Add above-mentioned milled mixtures, continue mixing 5 minutes, then discharging, crush, obtain modified additive;
(4) modified additive that grafting aluminium powder step (2) obtained obtains with step (3) mixes, and puts in double screw extruder Extruded shape growth 3mm, the cylinder of a diameter of 1mm, controlling extrusion temperature is 120 DEG C, is finally vacuum dried 5 hours at 50 DEG C Obtain.
Through overtesting, product surface of the present invention is smooth, free from admixture, achromic point mottle, and heatproof is more than 250 DEG C, at plastics or Dispersibility in rubber product is good, exempts from spraying moulding surfacing, without current mark, the easy demoulding with what it was made.

Claims (2)

1. the corrosion-resistant heat-staple strip aluminum pigment for plastics, it is characterised in that by the raw material system of following weight portion Become: flake aluminum 70-75, methacryloxypropyl trimethoxy silane 14-15, dehydrated alcohol are appropriate, trihydroxy methyl third Alkane triacrylate 28-30, acrylic acid 1-1-1.2, azodiisobutyronitrile 0.09-0.1, polyvinylpyrrolidone 1.75-1.9, Glass fibre 4-5, polypropylene 15-17, zinc stearate 2-3, liquid paraffin 0.8-1, thio-2 acid stearate 0.8-1.
A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics, it is characterised in that by with Lower concrete steps are made:
(1) by the dehydrated alcohol of molten for methacryloxypropyl trimethoxy silane 4-5 times amount, it is subsequently adding flaky aluminum Powder, is heated to 55-60 DEG C, and after reacting 1-1.5 hour with absolute ethanol washing for several times, vacuum drying obtains coupling modifier aluminium powder;
(2) by coupling modifier aluminium powder adds the dehydrated alcohol of 2-3 times amount, put in reactor, add three hydroxyl first while stirring Base propane triacrylate, acrylic acid and be dissolved in the polyvinylpyrrolidone of equivalent dehydrated alcohol, be heated under nitrogen protection 70-80 DEG C, then constant temperature dropping azodiisobutyronitrile, then rise to 85 DEG C and react 30-40 minute, question response is further continued for after terminating Stir 50-60 minute, natural cooling, centrifugation, obtain filter cake, finally filter cake is put into rotary evaporator evaporates anhydrous Ethanol, obtains being grafted aluminium powder;
(3) glass fibre is pulverized, cross 100 mesh sieves, then stand-by with liquid paraffin mixed grinding 90-120 minute;By polypropylene It is heated to melting, puts in high speed mixer with zinc stearate and remaining residual components, mix with the speed of 800-1000 rev/min Add above-mentioned milled mixtures after closing 3-5 minute, continue mixing 5-8 minute, then discharging, crush, obtain modified additive;
(4) modified additive that grafting aluminium powder step (2) obtained obtains with step (3) mixes, and puts in double screw extruder Extruded shape growth 3-5mm, the cylinder of a diameter of 1-2mm, control extrusion temperature and be 90-120 DEG C, finally true at 50-60 DEG C Sky is dried 5-6 hour and get final product.
CN201610594831.5A 2016-07-27 2016-07-27 A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics Pending CN106188855A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201610594831.5A CN106188855A (en) 2016-07-27 2016-07-27 A kind of corrosion-resistant heat-staple strip aluminum pigment for plastics

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109181092A (en) * 2018-06-12 2019-01-11 佛山市顺德区杰鑫通塑料科技有限公司 It is a kind of to exempt from spraying, the automobile-used outer plaque PP composite material with argentine effect and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102604445A (en) * 2012-02-15 2012-07-25 合肥旭阳铝颜料有限公司 Preparation method of aluminum pigment with high voltage breakdown resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102604445A (en) * 2012-02-15 2012-07-25 合肥旭阳铝颜料有限公司 Preparation method of aluminum pigment with high voltage breakdown resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109181092A (en) * 2018-06-12 2019-01-11 佛山市顺德区杰鑫通塑料科技有限公司 It is a kind of to exempt from spraying, the automobile-used outer plaque PP composite material with argentine effect and preparation method thereof

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Application publication date: 20161207

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