CN107722752A - The manufacture method of three-dimensional metal effect powdery paints - Google Patents
The manufacture method of three-dimensional metal effect powdery paints Download PDFInfo
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- CN107722752A CN107722752A CN201710866534.6A CN201710866534A CN107722752A CN 107722752 A CN107722752 A CN 107722752A CN 201710866534 A CN201710866534 A CN 201710866534A CN 107722752 A CN107722752 A CN 107722752A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
- C09D5/035—Coloring agents, e.g. pigments
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
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Abstract
The present invention discloses a kind of manufacture method of three-dimensional metal effect powdery paints and comprised the following steps：By resin, curing agent, levelling agent, degasser mixed in conical mixer or Horizontal type mixer, obtain lapping；Lapping is fed from the solid conveying section of single screw extrusion machine, metallic pigments is fed in the melting mixing section of screw extruder, carries out melting parcel, obtain coated metal material；Discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；Coated metal material is mixed with bottom powder using binding hybrid technique；Product cools down, and obtains three-dimensional metal effect powder.The present invention have keep its metal-like while, be not easy in the processing in later stage because high speed mix and crush damage, with stronger chemical-resistance and weather resistance, the compatibility with stronger chemical-resistance and weather resistance, safe and environment-friendly lapping and powder coating formulation is high the advantages of.
Description
Technical field
The present invention relates to powder coating technology field, more particularly to the manufacture method of three-dimensional metal effect powdery paints.
Background technology
Powdery paints is entirely free of organic solvent, and its VOC (VOC) in solidification row due to it
It is high-volume low, turn into one of the most environmentally friendly coating system at present.
Powdery paints than liquid paint except having advantage in terms of environmental protection, powdery paints also have concurrently anti-corrosion, it is weather-proof, with
And attractive, decorative.Powdery paints is developed rapidly as the new technology of coatings industry in recent decades.As country is to ring
The requirement more and more higher of guarantor, it is inevitable main trend that paint, which is disguised,.
At present, the manufacturing process of metal powder coating includes following several：
1) extrusion molding：I.e. before extrusion, the processing of similar other pigment is carried out to metallic flake pigment, then with it is other
All raw material mixing.This method can cause most of metallic pigments to be crushed in extrusion.
2) dry pigmentation：Advantage is simple, economical, and most domestic producer is all in this way.Yet with metallic pigments
Conduct electricity very well, cause its workability very poor.For example, the separation of metallic pigments, spray gun short circuit etc..Also due to metal face
Material is simply loosely blended in background color powder, and it is that isolated component, the addition of metallic pigments are limited in whole coating.
Metallic pigments for powdery paints are generally divided into 4 classes.That is aluminium silver powder pigment, pearlescent pigment, Cu-Zn alloy powder pigment
With other metallic pigments (such as nickel powder, stainless steel powder).Each metalloid pigment includes the product of many form and aspect again, passes through powder
The formula design of manufacturer, after powdery paints, just make it that powder is colourful, is greatly enriched the product of powdery paints
Kind and dicoration.
But due to the characteristic of metallic pigments in itself, it disclosure satisfy that the metallic pigments species of high performance demands is less.In aluminium powder
Aspect, it is easily real with water and alkali substance reaction, such as the standard according to building trade, mortar due to the activity of aluminium pigment
It is intransitable to test with experiments such as detergent so that building powder paint metal effect is all very poor, big with paint gap, this
So that powdery paints can not be with especially competing in many construction projects.So external a small number of aluminium powder suppliers release by research and development
Weather resisteant aluminium powder, by repeatedly parcel (acrylic resin+SiO2) on aluminum particle, improve its chemical-resistance, pass through
Tested in powdery paints application, most of requirement that can meet building, but the metallic pigments that granularity is partially thin, in unstable mixing
Under technique, Fragmentation Phenomena is easily produced, so as to cause the decline of performance.The advantages of pearl essence, is that pearl essence form and aspect are more, resistance to
Chemical property is good, and shortcoming metal-like is not strong, too big compared to aluminium powder gap.The selection of pearl essence is also harsher, it is necessary to be through
The weathering grade product especially wrapped up is crossed, the requirement of this respect is ignored by the domestic many manufacturers of this point, by the other pearl essence of technical grade
It is applied in the product of super weathering, brings hidden danger of quality.
In summary, at present, metal powder coating is primarily present following deficiency：
(1) existing manufacturing process and metallic pigments, the metal-effect powder paint made do not have third dimension, pigment arrangement
It is not strong with metal-like, it is big with paint metal effect difference.
(2) existing manufacturing process, the addition of metallic pigments is restricted, and content is too high to bring film coated surface levelling
Difference, the increase of work progress fraction defective.
(3) it existing manufacturing process and metallic pigments, can be broken in the fabrication process, the decline of performance can be brought.
(4) existing manufacturing process and metallic pigments, because the security of metallic pigments is poor, have in the fabrication process inflammable easy
Quick-fried danger；
(5) existing metallic pigments packing technology is melted using double screw extruder, due to the kneading effect mistake of twin-screw
By force, lapping and metallic pigments can be destroyed, loss of performance.
The content of the invention
While in view of the deficiencies of the prior art, the present invention provides its metal-like is kept, do not allow in the processing in later stage
Easily because high speed mixes and crush damage, with stronger chemical-resistance and weather resistance, with stronger chemical-resistance and
The system of the high three-dimensional metal effect powdery paints of the compatibility of weather resistance, safe and environment-friendly lapping and powder coating formulation
Make method.
The present invention realizes solve above-mentioned technical problem by following technological means：A kind of three-dimensional metal effect powdery paints
Manufacture method comprise the following steps：
(1) raw material of following mass fraction is weighed, wherein, 20~130 parts of resin, 4~50 parts of curing agent, levelling agent 0.5
~1 part, 0.5~1 part of degasser, 0.5~11 part of metallic pigments；
(2) resin of step (1), curing agent, levelling agent, degasser are mixed in conical mixer or Horizontal type mixer
Close, obtain lapping；Wherein, temperature control is at≤40 DEG C；During using conical mixer batch mixing, mixing time be 10~
20min, batch mixing speed are 50~200r/min；During using Horizontal type mixer batch mixing, mixing time is 5~10min, batch mixing speed
For 500~1000r/min；
(3) lapping of step (2) is fed from the solid conveying section of single screw extrusion machine, in the molten of screw extruder
Melt the metallic pigments of mixing section feeding step (1), carry out melting parcel, obtain coated metal material；Wherein, the screw extruder
Include solid conveying section, melt zone, melting mixing section, melting transportation section successively from front to back according to material extrusion order；Wherein,
Melt zone, the temperature of melting mixing section are 80~110 DEG C, and the temperature for melting transportation section is 60~110 DEG C；
Or the lapping of step (2) and the metallic pigments of step (1) are melted in a kettle；Melting temperature is
80~110 DEG C, the rotating speed of reactor is 10~300r/min；As viscosity≤50pa.s of material, metallic pigments are added；
(4) discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；
(5) the coated metal material of step (4) is mixed with bottom powder using binding hybrid technique；Coated metal material and bottom
The mass ratio of powder is 1:1~100；By in bottom powder, binding auxiliary agent input binding heating kettle, air in nitrogen displacement pot is passed through；It is logical
Cross stirrer paddle stirring 500-2500r, when between the powder of bottom frictional heat to 55~75 DEG C；Metallic pigments are added, are bound；
(6) product of step (5) is cooled down, obtains three-dimensional metal effect powder.
Preferably, the resin of the step (1) is single resin or multicomponent resin.
Preferably, the resin of the step (1) is single resin or multicomponent resin.
The resin of the step (1) is polyester resin, epoxy resin, polyester epoxy resin, polyurethane, fluorocarbon resin, third
One or more mixing in olefin(e) acid resin, silicones.
Preferably, the resin of the step (1) is single resin or multicomponent resin.
The raw material of following mass fraction is weighed, wherein, acrylic resin 20~90, organic siliconresin 0~20, thermosetting fluoro
0~20 part of carbon resin, hydroxyl or carboxyl polyester resin 0~50,4~50 parts of curing agent, 0.1~1.5 part of levelling agent, degasser
0.2~0.8 part, 0.5~45 part of metallic pigments.
Preferably, the resin of the step (1) is single resin or multicomponent resin.
Preferably, weigh the raw material of following mass fraction, wherein, 25 parts of acrylic resin, 8 parts of thermosetting fluoro carbon resin,
25 parts of hydroxy polyester resin, 12 parts of curing agent, 1 part of levelling agent, 0.5 part of degasser, 0.5 part of metallic pigments.
Preferably, weigh following mass fraction raw material mixing, wherein, 40 parts of epoxy resin, 40 parts of carboxyl polyester resin,
10 parts of curing agent, 1 part of levelling agent, 1 part of degasser, 6 parts of metallic pigments.
Preferably, the raw material of following mass fraction is weighed, wherein, 70 parts of hydroxy polyester resin, 15 parts of curing agent, levelling agent
1 part, 1 part of degasser, 11 parts of metallic pigments.
Preferably, wherein, in step (3) rotating speed of extruder be 20~90r/min, the draw ratio of screw rod be 25.
Preferably, the feeding mode of the step (1) is specially and first puts into the half of resin quality into batch mixer, then
By the input such as curing agent, levelling agent, degasser into batch mixer, finally remaining resin is put into batch mixer again.
Invention additionally discloses a kind of three-dimensional metal effect powdery paints single screw extrusion machine, the single screw extrusion machine by
A-P includes the screw extruder successively includes solid conveying section, melting successively from front to back according to material extrusion order
Section, melting mixing section, melting transportation section；Lapping charging aperture is offered on the solid conveying section, in melting mixing section
On offer metal material charging aperture, melting transportation section end be provided with discharging opening.
The advantage of the invention is that：Metal pigment surfaces are covered in due to lapping even compact so that metal face
Material is not easy to crush damage because high speed mixes while its metal-like is kept in the processing in later stage.By wrapping up material
The formula design of material so that metallic pigments have stronger chemical-resistance and weather resistance.Due to the characteristic of lapping,
Meeting solid shows in later product, has superpower cubic metal characters or patterns texture, 3D effect.Metallic pigments after treatment completely every
The environmental pollution that metallic pigments inflammable and explosive characteristic in itself and easy airborne dust are brought absolutely so that the use of metallic pigments and resin
Material is equally safe and environment-friendly.Due to the compatibility of lapping and powder coating formulation, the addition of lapping can reach
50%, metal effect can be made strong, also possess charging property.When electrostatic spraying is constructed, eliminate because metal face
Expect not charged and caused spraying defect
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Embodiment 1
The present embodiment discloses a kind of coated metal material, including the raw material of following mass fraction is made：Acrylic resin 20
0~70 part of~90 parts, 0~20 part of organic siliconresin, 0~20 part of thermosetting fluoro carbon resin, hydroxyl or carboxyl polyester resin, solidification
10~15 parts of agent, 0.1~1.5 part of levelling agent, 0.5~1 part of degasser, 0.5~11 part of metallic pigments.
Embodiment 2
The present embodiment discloses a kind of coated metal material, including the raw material of following mass fraction is made：Acrylic resin 25
Part, 8 parts of thermosetting fluoro carbon resin, 25 parts of hydroxy polyester resin, 12 parts of curing agent, 1 part of levelling agent, 0.5 part of degasser, metal
0.5 part of pigment.
Embodiment 3
The present embodiment discloses a kind of coated metal material, including the raw material of following mass fraction is made：Carboxyl polyester resin
40 parts, 40 parts of epoxy resin, 10 parts of curing agent, 1 part of levelling agent, 1 part of degasser, 6 parts of metallic pigments.
Embodiment 4
The present embodiment discloses a kind of coated metal material, including the raw material of following mass fraction is made：Hydroxy polyester resin
70 parts, 15 parts of curing agent, 1 part of levelling agent, 1 part of degasser, 11 parts of metallic pigments.
Embodiment 5
The present embodiment discloses the side that a kind of coated metal material using embodiment 2 prepares three-dimensional metal effect powdery paints
Method, comprise the following steps：
(1) by the resin in embodiment 2, curing agent, levelling agent, degasser in conical mixer or Horizontal type mixer
Mixing, obtains lapping；Wherein, temperature control is at 35 DEG C；Using conical mixer batch mixing, mixing time 10min, batch mixing
Speed is 50r/min；
(3) lapping of step (2) is fed from the solid conveying section of single screw extrusion machine, in the molten of screw extruder
Melt the metallic pigments of mixing section feeding step (1), carry out melting parcel, obtain coated metal material；Wherein, the screw extruder
Include solid conveying section, melt zone, melting mixing section, melting transportation section successively from front to back according to material extrusion order；Wherein,
Melt zone, the temperature of melting mixing section are 80 DEG C, and the temperature for melting transportation section is 60 DEG C；The rotating speed of extruder is 20r/min, spiral shell
The draw ratio of bar is 25；
(4) discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；
(5) the coated metal material of step (4) is mixed with bottom powder using binding hybrid technique；Coated metal material and bottom
The mass ratio of powder is 1:10；By in bottom powder, binding auxiliary agent input binding heating kettle, air in nitrogen displacement pot is passed through；By stirring
Mix blade stirring 500r, when between the powder of bottom frictional heat to 55 DEG C；Metallic pigments are added, are bound；
(6) product of step (5) is cooled down, obtains three-dimensional metal effect powder.
Embodiment 6
The present embodiment discloses the side that a kind of coated metal material using embodiment 3 prepares three-dimensional metal effect powdery paints
Method, comprise the following steps：
(1) by the resin in embodiment 3, curing agent, levelling agent, degasser in conical mixer or Horizontal type mixer
Mixing, obtains lapping；Wherein, temperature control is at 38 DEG C；Using Horizontal type mixer batch mixing, mixing time 8min, batch mixing
Speed is 800r/min；
(3) lapping of step (2) is fed from the solid conveying section of single screw extrusion machine, in the molten of screw extruder
Melt the metallic pigments of mixing section feeding step (1), carry out melting parcel, obtain coated metal material；Wherein, the screw extruder
Include solid conveying section, melt zone, melting mixing section, melting transportation section successively from front to back according to material extrusion order；Wherein,
Melt zone, the temperature of melting mixing section are 100 DEG C, and the temperature for melting transportation section is 80 DEG C；The rotating speed of extruder be 60r/min,
The draw ratio of screw rod is 25.
(4) discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；
(5) the coated metal material of step (4) is mixed with bottom powder using binding hybrid technique；Coated metal material and bottom
The mass ratio of powder is 1:100；By in bottom powder, binding auxiliary agent input binding heating kettle, air in nitrogen displacement pot is passed through；By stirring
Mix blade stirring 2500r, when between the powder of bottom frictional heat to 75 DEG C；Metallic pigments are added, are bound；
(6) product of step (5) is cooled down, obtains three-dimensional metal effect powder.
Embodiment 7
The present embodiment discloses the side that a kind of coated metal material using embodiment 4 prepares three-dimensional metal effect powdery paints
Method, comprise the following steps：
(1) by the resin in embodiment 4, curing agent, levelling agent, degasser in conical mixer or Horizontal type mixer
Mixing, obtains lapping；Wherein, temperature control is at 40 DEG C；Using conical mixer batch mixing, mixing time 20min, batch mixing
Speed is 200r/min；
(3) lapping of step (2) and the metallic pigments of step (1) are melted in a kettle；Melting temperature is 90
DEG C, the rotating speed of reactor is 100r/min；When the viscosity of material is 45pa.s, metallic pigments are added；
(4) discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；
(5) the coated metal material of step (4) is mixed with bottom powder using binding hybrid technique；Coated metal material and bottom
The mass ratio of powder is 1:50；By in bottom powder, binding auxiliary agent input binding heating kettle, air in nitrogen displacement pot is passed through；By stirring
Mix blade stirring 1000r, when between the powder of bottom frictional heat to 60 DEG C；Metallic pigments are added, are bound；
(6) product of step (5) is cooled down, obtains three-dimensional metal effect powder.
The levelling agent of the present invention is preferably the Powdermate 486FL (trade of Troy special chemical article (Shanghai) limited public affairs
Department)；Degasser is preferably the Bi Ke of BYK 961 chemical (Bi Ke chemical technologies seek advice from (Shanghai) Co., Ltd.)；Curing agent is preferably
B1530 Degussas (win wound industrial group).Levelling agent, degasser, the curing agent of other prior arts also should be the present invention's
In protection domain.The bed material of the present invention is preferably in vinyl chloride or MBS, ACR auxiliary agent, calcium powder, paraffin, macromolecule wax
One or more mixing.The metallic pigments of the present invention are preferably aluminium silver powder pigment or pearlescent pigment, Cu-Zn alloy powder pigment
Or the metallic pigments of other prior arts.
Embodiment 8
Performance test
Table 1
As shown in Table 1, using the technique of the present invention, have the advantages that：
Lapping even compact is covered in metal pigment surfaces, adds the toughness of metallic pigments so that metal face
Material is not easy to crush damage because high speed mixes while its metal-like is kept in the processing in later stage.
Designed by the formula of lapping, the resin bed chemical resistance advantage of the surface parcel of metallic particles so that gold
Category pigment has stronger chemical-resistance and weather resistance.Due to the characteristic of lapping, the solubility parameters difference of storeroom,
So that metal material meeting solid in later product shows arrangement, there is superpower cubic metal characters or patterns texture, 3D effect.
Metallic pigments after treatment, surface superscribe resin bed, completely cut off completely metallic pigments in itself it is inflammable easily
The environmental pollution that quick-fried characteristic and easy airborne dust are brought so that the use of metallic pigments is safe and environment-friendly as resin material.
Due to the compatibility of lapping and powder coating formulation, the addition of lapping can reach more than 50%,
Metal effect can be made strong, also possess charging property.When electrostatic spraying is constructed, eliminate because metallic pigments without
Electric and caused spraying defect.
Embodiment 9
The present invention discloses a kind of three-dimensional metal effect powdery paints single screw extrusion machine, and the single screw extrusion machine is by preceding
After successively include the screw extruder according to material extrusion order from front to back successively include solid conveying section, melt zone,
Melting mixing section, melting transportation section；Lapping charging aperture is offered on the solid conveying section, in melting mixing Duan Shangkai
Provided with metal material charging aperture, the end of melting transportation section is provided with discharging opening.
The present invention is meeting metal material by the way that metal material charging aperture is positioned close on the melting transportation section of discharging opening
On the premise of material is sufficiently mixed with lapping, the probability that metal material is broken can be reduced as far as possible, ensures metal lapping
Follow-up performance.
It should be noted that herein, if being used merely in the presence of first and second or the like relational terms by one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of manufacture method of three-dimensional metal effect powdery paints, it is characterised in that comprise the following steps：
（1）The raw material of following mass fraction is weighed, wherein, it is 20 ~ 130 parts of resin, 4 ~ 50 parts of curing agent, 0.5 ~ 1 part of levelling agent, de-
0.5 ~ 1 part of gas agent, 0.5 ~ 11 part of metallic pigments；
（2）By step（1）Resin, curing agent, levelling agent, degasser mixed in conical mixer or Horizontal type mixer,
Obtain lapping；Wherein, temperature control is at≤40 DEG C；During using conical mixer batch mixing, mixing time is 10 ~ 20min, mixed
Material speed is 50 ~ 200r/min；During using Horizontal type mixer batch mixing, mixing time is 5 ~ 10min, batch mixing speed be 500 ~
1000r/min；
（3）By step（2）Lapping fed from the solid conveying section of single screw extrusion machine, mixed in the melting of screw extruder
Close section feeding step（1）Metallic pigments, carry out melting parcel, obtain coated metal material；Wherein, the screw extruder according to
Material extrusion order includes solid conveying section, melt zone, melting mixing section, melting transportation section successively from front to back；Wherein, melt
Section, the temperature of melting mixing section are 80 ~ 110 DEG C, and the temperature for melting transportation section is 60 ~ 110 DEG C；
Or by step（2）Lapping and step（1）Metallic pigments melt in a kettle；Melting temperature be 80 ~
110 DEG C, the rotating speed of reactor is 10 ~ 300r/min；As viscosity≤50pa.s of material, metallic pigments are added；
（4）Discharge after tabletting, carry out ACM millings, sieving, obtain coated metal material；
（5）Using binding hybrid technique by step（4）Coated metal material mixed with bottom powder；Coated metal material and bottom powder
Mass ratio is 1:1~100；By in bottom powder, binding auxiliary agent input binding heating kettle, air in nitrogen displacement pot is passed through；Pass through stirring
Blade stirring 500-2500r, when between the powder of bottom frictional heat to 55 ~ 75 DEG C；Metallic pigments are added, are bound；
（6）By step（5）Product cooling, obtain three-dimensional metal effect powder.
2. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that the step
（1）Resin be single resin or multicomponent resin.
3. the manufacture method of three-dimensional metal effect powdery paints according to claim 2, it is characterised in that the step
（1）Resin be polyester resin, epoxy resin, polyester epoxy resin, polyurethane, fluorocarbon resin, acrylic resin, in silicones
One or more mixing.
4. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that weigh following matter
Measure number raw material, wherein, acrylic resin 20 ~ 90, organic siliconresin 0 ~ 20,0 ~ 20 part of thermosetting fluoro carbon resin, hydroxyl or
Carboxyl polyester resin 0 ~ 50,4 ~ 50 parts of curing agent, 0.1 ~ 1.5 part of levelling agent, 0.2 ~ 0.8 part of degasser, metallic pigments 0.5 ~
45 parts.
5. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that weigh following matter
The raw material of number is measured, wherein, 25 parts of acrylic resin, 8 parts of thermosetting fluoro carbon resin, 25 parts of hydroxy polyester resin, curing agent 12
Part, 1 part of levelling agent, 0.5 part of degasser, 0.5 part of metallic pigments.
6. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that weigh following matter
The raw material mixing of number is measured, wherein, 40 parts of epoxy resin, 40 parts of carboxyl polyester resin, 10 parts of curing agent, 1 part of levelling agent, degassing
1 part of agent, 6 parts of metallic pigments.
7. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that weigh following matter
The raw material of number is measured, wherein, 70 parts of hydroxy polyester resin, 15 parts of curing agent, 1 part of levelling agent, 1 part of degasser, metallic pigments 11
Part.
8. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that wherein, step
（3）The rotating speed of middle extruder is 20 ~ 90 r/min, the draw ratio of screw rod is 25.
9. the manufacture method of three-dimensional metal effect powdery paints according to claim 1, it is characterised in that the step
（1）Feeding mode be specially first to put into the half of resin quality into batch mixer, then by curing agent, levelling agent, degasser
Deng input into batch mixer, finally remaining resin is put into batch mixer again.
A kind of 10. three-dimensional metal effect powdery paints single screw extrusion machine, it is characterised in that：The single screw extrusion machine is by preceding
After successively include the screw extruder according to material extrusion order from front to back successively include solid conveying section, melt zone,
Melting mixing section, melting transportation section；Lapping charging aperture is offered on the solid conveying section, in melting mixing Duan Shangkai
Provided with metal material charging aperture, the end of melting transportation section is provided with discharging opening.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109337529A (en) * | 2018-09-29 | 2019-02-15 | 廊坊艾格玛新立材料科技有限公司 | A kind of super-durable stereo metal wire-drawing effect coating and its production method |
| CN109486399A (en) * | 2018-11-20 | 2019-03-19 | 金华市佳振科技发展有限公司 | 3D solid flashes metal powder coating and preparation method thereof |
| CN111057451A (en) * | 2019-12-31 | 2020-04-24 | 江苏变色龙微粉技术有限公司 | Metal powder coating with high metal texture and preparation process thereof |
| CN111218191A (en) * | 2020-03-02 | 2020-06-02 | 佛山市顺德区千之彩实业有限公司 | Metal powder coating and preparation process thereof |
| CN113396192A (en) * | 2019-02-14 | 2021-09-14 | Ppg工业俄亥俄公司 | Coating composition providing an anodized look |
| CN114316752A (en) * | 2021-12-23 | 2022-04-12 | 老虎表面技术新材料（清远）有限公司 | Powder coating composition with stable pearl feel, preparation method thereof and coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109337529A (en) * | 2018-09-29 | 2019-02-15 | 廊坊艾格玛新立材料科技有限公司 | A kind of super-durable stereo metal wire-drawing effect coating and its production method |
| CN109486399A (en) * | 2018-11-20 | 2019-03-19 | 金华市佳振科技发展有限公司 | 3D solid flashes metal powder coating and preparation method thereof |
| CN113396192A (en) * | 2019-02-14 | 2021-09-14 | Ppg工业俄亥俄公司 | Coating composition providing an anodized look |
| CN111057451A (en) * | 2019-12-31 | 2020-04-24 | 江苏变色龙微粉技术有限公司 | Metal powder coating with high metal texture and preparation process thereof |
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| CN114316752A (en) * | 2021-12-23 | 2022-04-12 | 老虎表面技术新材料（清远）有限公司 | Powder coating composition with stable pearl feel, preparation method thereof and coating |
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Application publication date: 20180223 |