CN109957207A - It is a kind of to exempt from spraying metal aluminium pigment and preparation method thereof with brittle performance - Google Patents
It is a kind of to exempt from spraying metal aluminium pigment and preparation method thereof with brittle performance Download PDFInfo
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- CN109957207A CN109957207A CN201910262716.1A CN201910262716A CN109957207A CN 109957207 A CN109957207 A CN 109957207A CN 201910262716 A CN201910262716 A CN 201910262716A CN 109957207 A CN109957207 A CN 109957207A
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- aluminium pigment
- metal aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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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
- C08K3/16—Halogen-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
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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
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of to exempt from spraying metal aluminium pigment and preparation method thereof with brittle performance.Exempt from spraying described in wherein to be configured with metal aluminium pigment by the raw material of following weight percents content: metal aluminium pigment 60%-75%, epoxy resin 20%-35%, spread powder 2%-6%, labilizer 3%-5%.The present invention can make the pigment after granulation drying to be easier to be crushed by increasing labilizer, greatly reduce broken time of the pigment in pulverizer, effectively save the shape for exempting from the metal aluminium flake in spraying metal aluminium pigment from damage, reduce the color difference of injecting products, the aesthetics of injecting products is improved, production cost is decreased.The broken pigment apparent size that can also make simultaneously is unified, when mixing with plastic pellet more evenly.
Description
Technical field
The present invention relates to the technical fields for exempting from spraying pigment, more particularly to a kind of pigment that can reduce to be crushed having for time
Brittle performance exempts from spraying metal aluminium pigment and preparation method thereof.
Background technique
Currently, the shell of household electrical appliances, the inside gadget of automobile usually carry out one coating of spraying in plastics or metalwork surface
To meet the different demands of consumer.However, insalubrious easily containing benzene, aldehyde etc. in most coating on market today
Volatile substance.In spraying process, these chemical substances will be evaporated, and very big pollution is not only generated to environment, also can
The body of long campaigns spraying personnel is caused greatly to injure.When especially encountering some high-grade product processing, to the work of spraying
Skill requirement is relatively high, this inferior rate that will inevitably lead to spraying rises, to increase the cost of spraying process.In this scenario,
Domestic some companies, which just have developed, exempts from spraying pigment.This exempt from spraying pigment injection molding when and plastic pellet (such as PP, ABS
Deng) first premixed, then melting mixing is directly molded by the coloured product of tool again.In order to enable exempting from spraying pigment and modeling
Expect that particle is uniformly mixed as far as possible, needs first exempt from spray with finishing pigment and be broken into fine particle, and broken process is on the one hand
It will increase production cost.The another aspect shattering process time is long, and high-intensitive external force shearing, which can destroy, exempts from spray in finishing pigment
Metal aluminum sheet stock will result in the product for being molded by this way and generate color difference, and influences beauty.
Therefore, how to overcome and existing exempt from spraying metal aluminium pigment to be crushed the time long so that metal in failure by shear pigment
The defect of raw material is industry urgent problem to be solved.
Summary of the invention
The present invention, which is that solution is existing, exempts to be crushed time length in spraying metal aluminium pigment shattering process so that failure by shear face
The technical issues of raw metal in material, provide it is a kind of can reduce pigment be crushed the time there is brittle performance exempt from spraying gold
Belong to aluminium pigment and preparation method thereof.
The invention proposes a kind of to exempt from spraying metal aluminium pigment with brittle performance, by following weight percents content
Raw material configure: metal aluminium pigment 60%-75%, epoxy resin 20%-35%, spread powder 2%-6%, labilizer 3%-5%.
Preferably, the metal aluminium pigment is that aluminium powder passes through sheet type aluminium pigment prepared by ball milling；It is golden in the aluminium pigment
The weight ratio for belonging to aluminium is 70%-80%, and petroleum solvent and auxiliary agent account for 20%-30%, and aluminium pigment partial size is between 5um-50um.
Preferably, the epoxy resin is one of MODIFIED PP, modified ABS or modified polyurethane.
Preferably, the spread powder is a kind of wax-like amide.
Preferably, the labilizer is NaF, Al2O3 , at least one of mica or glass powder.
The invention also provides a kind of preparation methods for exempting from spraying metal aluminium pigment with brittle performance, and step is such as
Under,
Step 1: the various raw materials for exempting from spraying metal aluminium pigment described in preparing are weighed according to proportion, by the labilizer and expansion
Loose powder is pre-added in the metal aluminium pigment and stirs 0.5h, obtains mixture；
Step 2: the epoxy resin being added to the mixture again, 110-150 DEG C is heated to and carries out co-melting 2-3h, must be total to
Melt mixture；
Step 3: when the co-melting mixture is cooled to 60-80 DEG C, being granulated, be made described and exempt from spraying metal aluminium pigment.
Preferably, exempt to be crushed, baking temperature is after spraying metallic aluminium granules of pigments toasts 7 hours by described
80℃ 。
Preferably, it in the step 2, after the petroleum solvent of wetting action is added in the mixture, then carries out described
Heating it is co-melting；The dosage of petroleum solvent exempts from the 1% of spraying metal aluminium pigment total amount described in being less than.
Preferably, it after the petroleum solvent is added, is first stirred 5 minutes, then to carry out the heating co-melting.
The present invention can make the pigment after granulation drying to be easier to be crushed by increasing labilizer, thus can be very big
Broken time of the spraying metal aluminium pigment in pulverizer is exempted from diminution, effectively saves the metal exempted from spraying metal aluminium pigment from damage
The shape of aluminium flake reduces the color difference of injecting products, improves the aesthetics of injecting products, decreases production cost.Simultaneously
The broken pigment apparent size that can make is unified, when mixing with plastic pellet more evenly.
Detailed description of the invention
Exempt from the comparison of spraying metal aluminium pigment broken particle and the prior art made from Fig. 1 preparation embodiment one
Figure；
Exempt from the comparison diagram of spraying metal aluminium pigment broken particle and the prior art made from Fig. 2 preparation embodiment two；
Exempt from the comparison diagram of spraying metal aluminium pigment broken particle and the prior art made from Fig. 3 preparation embodiment three.
Specific embodiment
It is proposed by the present invention it is a kind of exempt from spraying metal aluminium pigment with brittle performance, by following weight percents content
Raw material configure: metal aluminium pigment 60%-75%, epoxy resin 20%-35%, spread powder 2%-6%, labilizer 3%-5%.
Wherein: metal aluminium pigment is that aluminium powder passes through sheet type aluminium pigment prepared by ball milling；The weight ratio of the aluminium pigment kind metallic aluminium is
70%-80%, petroleum solvent and auxiliary agent account for 20%-30%, generally select more aluminium pigment partial size between 5um-50um, metal
Aluminium pigment plays coloring covering wherein.Epoxy resin is that MODIFIED PP, modified ABS or modified polyurethane etc. are one such.
Epoxy resin can help pigment preferably to disperse, and reduce the generation of current mark and weld bond in injection moulding process.Spread powder is one kind
Wax-like amide has processing and lubrication effect and the anti-sticking effect of low temperature to fluoropolymer resin, can prevent resin melt from adhering to
Metal surface.Labilizer is a kind of inorganic compound, such as NaF, Al2O3 , one of mica or glass powder or its kind of several original
The mixture of material.The effect of labilizer is the toughness reduced after product drying, keeps it more easily broken in crushing process.
As needed, can have brittle performance using different raw material proportioning preparations exempts from spraying metal aluminium pigment,
Such as the formula for five kinds of embodiments that following table provides, but it is not limited to only this five kinds of embodiments:
The present invention also provides a kind of preparation method for exempting from spraying metal aluminium pigment with brittle performance, step has:
First labilizer and spread powder are added in metal aluminium pigment, stir 0.5h；Then epoxy resin stirring is added, and is added
Heat carries out co-melting 2-3h to 110-150 DEG C；When being cooled to 60-80 DEG C, granulation drying.
Prepare embodiment one:
The preparation method for exempting from spraying metal aluminium pigment with brittle performance, step have:
1, using the above-mentioned raw material proportioning for exempting from the embodiment 1 in spraying metallic aluminium pigment formula table, that is, the dosage of raw material is weighed:
Metal aluminium pigment (5um) 60%, modified ABS resin 30%, spread powder 6%, mica 3% and NaF 1%.
2, metal aluminium pigment and labilizer and spread powder are added sequentially in kneader, are pre-mixed 30 minutes, obtain mixed
Close material.
3, modified ABS resin is added, the mineral oil that the petroleum solvent petroleum solvent is a kind of environmental protection, such as beauty are added
Inspire confidence in agent for carbon hydrogen detergent D40, D60, D80 etc., petroleum solvent therein plays dilution wetting action, it is volatile fall, it is anti-to be not involved in materialization
It answers.
Due to producing kneader used in whipping process, high-intensitive shearing force can destroy the structure of aluminium flake, for drop
Low this destruction can supplement some petroleum solvents inside, and the resin of such product the inside after heated melts, and will become one kind
Fluid, stirring than stirring milder at high viscosities in fluid.The solvent added finally needs to dry elimination, addition
Amount is unsuitable too many, as long as keeping product at flow-like after energy is co-melting.General petroleum solvent additive amount is to exempt from spraying metallic aluminium face
Expect 1% or less total amount.
4, mixture is stirred after five minutes, booting heating, temperature setting is 140 DEG C, heating stirring 2 hours, is obtained
Co-melting mixture.The co-melting mixture is cooled to 80 DEG C of granulations.It is made described and exempts from spraying metal aluminium pigment.
5, it after being put into 80 DEG C of baking oven drying 7 hours, is crushed with pulverizer, is made and exempts from spraying metal aluminium pigment powder
Material.
Any VOC is not generated when in order to be molded, the present invention exempts from spraying metal aluminium pigment in supply client in use, general
Solvent in product is first dried into recycling, i.e. baking is broken, would not generate VOC when in use in this way.
As shown in Figure 1, exempting from spraying metal aluminium pigment detection contrast schematic diagram.Spraying gold is exempted to be existing in left side in Fig. 1
Belong to the broken face shaping of aluminium pigment, spraying metal aluminium pigment is exempted under identical condition for of the invention in right side in Fig. 1
Break off the effect come.It is obvious that the present invention be added labilizer after exempt from spraying metallic aluminium granules of pigments it is more fine crushing uniformly,
It can more evenly be mixed in use with plastic pellet.
In order to which the variation of the broken front and back size thickness of spraying metal aluminium pigment is exempted from more direct reaction, now randomly select
10 samples are taken in 5 batch products in production sample, measure its granularity, measurement instrument is hundred spy's BT-2900 dye images
Granularity particle shape analyzer.Measurement as a result, it is existing exempt from the broken average particle size of spraying metal aluminium pigment be 2637.7 um,
And the broken average particle size of spraying metal aluminium pigment of exempting from of the invention is 1120.6 um.
Granularity in table refers to the size of particle.The granularity of usual spherical particles indicates with diameter, the grain of cubic granules
Degree is indicated with side length.To irregular particle, there can be a certain sphere diameter of identical behavior as the particle for the particle
The size of equivalent diameter, granularity is often indicated with D50.There is 50% particle to be lower than this value in this as D50=2000um expression samples,
There is 50% particle to be higher than this value.
Prepare embodiment two:
Using the above-mentioned raw material proportioning for exempting from the embodiment 2 in spraying metallic aluminium pigment formula table, that is, weigh the dosage of raw material:
Metal aluminium pigment (15um) 68%, modified ABS resin 27%, spread powder 2%, mica 1% and Al2O3 2%。
Exempt from below spraying metal aluminium pigment prepare its step with preparation embodiment one the step of it is identical.
As shown in Fig. 2, exempting from spraying metal aluminium pigment detection contrast schematic diagram.Left hand view exempts from spraying use to be existing in Fig. 2
The broken face shaping of metal aluminium pigment, right side is of the invention to exempt from spraying metal aluminium pigment in same condition in Fig. 2
Under break off come effect.It is obvious that the present invention be added labilizer after exempt from spraying metallic aluminium granules of pigments it is more fine crushing
It is even, it can more evenly be mixed in use with plastic pellet.
In order to which the variation of the broken front and back size thickness of spraying metal aluminium pigment is exempted from more direct reaction, now randomly select
10 samples are taken in 5 batch products in production sample, measure its granularity.Measurement instrument is hundred spy's BT-2900 dye images
Granularity particle shape analyzer.Measurement as a result, it is existing exempt from the broken average particle size of spraying metal aluminium pigment be 1886.3 um,
And the broken average particle size of spraying metal aluminium pigment of exempting from of the invention is 351.1 um.
Prepare embodiment three:
Using the above-mentioned raw material proportioning for exempting from the embodiment 3 in spraying metallic aluminium pigment formula table, that is, weigh the dosage of raw material:
Metal aluminium pigment (35um) 75%, modified ABS resin 20%, spread powder 2%, mica 2% and Al2O3 1%。
Exempt from below spraying metal aluminium pigment prepare its step with preparation embodiment one the step of it is identical.
As shown in figure 3, exempting from spraying metal aluminium pigment detection contrast schematic diagram.Left hand view exempts from spraying use to be existing in Fig. 3
The broken face shaping of metal aluminium pigment, right side is of the invention to exempt from spraying metal aluminium pigment in same condition in Fig. 3
Under break off come effect.It is obvious that the present invention be added labilizer after exempt from spraying metallic aluminium granules of pigments it is more fine crushing
It is even, it can more evenly be mixed in use with plastic pellet.
In order to which the variation of the broken front and back size thickness of spraying metal aluminium pigment is exempted from more direct reaction, now randomly select
10 samples are taken in 5 batch products in production sample, measure its granularity.Measurement instrument is hundred spy's BT-2900 dye images
Granularity particle shape analyzer.Measurement as a result, it is existing exempt from the broken average particle size of spraying metal aluminium pigment be 829.2 um, and
The broken average particle size of spraying metal aluminium pigment of exempting from of the invention is 114.1 um.
The present invention can make the pigment after granulation drying to be easier to be crushed by increasing labilizer, thus can be very big
Broken time of the spraying metal aluminium pigment in pulverizer is exempted from diminution, effectively saves the metal exempted from spraying metal aluminium pigment from damage
The shape of aluminium flake reduces the color difference of injecting products, improves the aesthetics of injecting products, decreases production cost.Simultaneously
The broken pigment apparent size that can make is unified, when mixing with plastic pellet more evenly.
Embodiment is combined to have been described in detail the present invention above, but those skilled in the art can be with
Numerous variations or variation are made to these embodiments, these changes and variation should be fallen within the scope of the invention.
Claims (10)
1. a kind of exempt from spraying metal aluminium pigment with brittle performance, by the raw material configuration of following weight percents content
At:
Metal aluminium pigment 60%-75%, epoxy resin 20%-35%, spread powder 2%-6%, labilizer 3%-5%.
2. exempting from spraying metal aluminium pigment as described in claim 1, which is characterized in that the metal aluminium pigment passes through for aluminium powder
Sheet type aluminium pigment prepared by ball milling；The weight ratio of the aluminium pigment kind metallic aluminium is 70%-80%, and petroleum solvent and auxiliary agent account for
20%-30%, aluminium pigment partial size is between 5um-50um.
3. exempting from spraying metal aluminium pigment as described in claim 1, which is characterized in that the epoxy resin be MODIFIED PP,
One of modified ABS or modified polyurethane.
4. exempting from spraying metal aluminium pigment as described in claim 1, which is characterized in that the spread powder is a kind of wax-like
Amide.
5. exempting from spraying metal aluminium pigment as described in claim 1, which is characterized in that the labilizer is NaF, Al2O3 , cloud
At least one of female or glass powder.
6. the preparation method that one kind exempts from spraying metal aluminium pigment as described in any one of claim 1 ~ 5 comprising following steps,
Step 1: the various raw materials for exempting from spraying metal aluminium pigment described in preparing are weighed according to proportion, by the labilizer and expansion
Loose powder is pre-added in the metal aluminium pigment and stirs 0.5h, obtains mixture；
Step 2: the epoxy resin being added to the mixture again, 110-150 DEG C is heated to and carries out co-melting 2-3h, must be total to
Melt mixture；
Step 3: when the co-melting mixture is cooled to 60-80 DEG C, being granulated, be made described and exempt from spraying metal aluminium pigment.
7. exempting from the preparation method of spraying metal aluminium pigment as described in claim 1, which is characterized in that described is exempted from spraying face
It after expecting that particle toasts 7 hours, is crushed, baking temperature is 80 DEG C.
8. exempting from the preparation method of spraying metal aluminium pigment as described in claim 1, which is characterized in that in the step 2, be added
After the petroleum solvent of wetting action, then to carry out the heating co-melting.
9. exempting from the preparation method of spraying metal aluminium pigment as claimed in claim 8, which is characterized in that the use of the petroleum solvent
Amount exempts from the 1% of spraying metal aluminium pigment total amount described in being less than.
10. exempting from the preparation method of spraying metal aluminium pigment as claimed in claim 8, which is characterized in that the stone is being added
It after oil solvent, is first stirred 5 minutes, then to carry out the heating co-melting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262716.1A CN109957207A (en) | 2019-04-02 | 2019-04-02 | It is a kind of to exempt from spraying metal aluminium pigment and preparation method thereof with brittle performance |
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| CN201910262716.1A CN109957207A (en) | 2019-04-02 | 2019-04-02 | It is a kind of to exempt from spraying metal aluminium pigment and preparation method thereof with brittle performance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111218079A (en) * | 2020-03-26 | 2020-06-02 | 广东麒麟精工科技有限公司 | Spraying-free colored aluminum pigment and preparation method thereof |
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Cited By (1)
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|---|---|---|---|---|
| CN111218079A (en) * | 2020-03-26 | 2020-06-02 | 广东麒麟精工科技有限公司 | Spraying-free colored aluminum pigment and preparation method thereof |
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