CN107936784A - A kind of powdery paints with rejection electrostatic efficiency and preparation method thereof - Google Patents

A kind of powdery paints with rejection electrostatic efficiency and preparation method thereof Download PDF

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Publication number
CN107936784A
CN107936784A CN201711118986.2A CN201711118986A CN107936784A CN 107936784 A CN107936784 A CN 107936784A CN 201711118986 A CN201711118986 A CN 201711118986A CN 107936784 A CN107936784 A CN 107936784A
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CN
China
Prior art keywords
rejection
powdery paints
electrostatic efficiency
preparation
epoxy resin
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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
CN201711118986.2A
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Chinese (zh)
Inventor
梁泳田
罗绵生
李光
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Guangzhou Kinte Industrial Co Ltd
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Guangzhou Kinte Industrial Co Ltd
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Priority to CN201711118986.2A priority Critical patent/CN107936784A/en
Publication of CN107936784A publication Critical patent/CN107936784A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • C09D5/24—Electrically-conducting paints
    • 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
    • C09D5/28—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for wrinkle, crackle, orange-peel, or similar decorative effects
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • 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

Abstract

The invention discloses a kind of powdery paints with rejection electrostatic efficiency, include the component of following proportion by weight：Epoxy resin 60~100, polyester resin 100~140, filler 30~100, wrinkle agent 0.5~5, defoamer 0.5~3, growth agent 0.2~2, pigment 1.0~10, conductive material 0.5~3.0.The powdery paints is film forming matter using epoxy/polyester hybrid resin system, selects the conductive material of high-effective conductive, and conductive material use ratio is few and conductive capability is strong, has more preferably cost performance.The invention also discloses the preparation method of the above-mentioned powdery paints with rejection electrostatic efficiency.

Description

A kind of powdery paints with rejection electrostatic efficiency and preparation method thereof
Technical field
The invention belongs to powder coating technology field, and in particular to it is a kind of have rejection electrostatic efficiency powdery paints and its Preparation method.
Background technology
Traditional antistatic powder coating is mainly carbon black, metal material etc. with conductive material.Carbon black not only pollutes big, behaviour Bother, and because its additive amount is higher, impact strength, adhesive force and the wearability of powdery paints in itself can be substantially reduced. Moreover, it can not also mix colours using powdery paints of the carbon black as conductive material and (black can only be made), greatly reduce painting The dicoration of material；And antistatic powdery paints of the metal material as conductive material is used, although color more horn of plenty, its Relative density is larger and price is high, and the production cost of coating greatly improved.
The content of the invention
It is an object of the invention to provide a kind of powdery paints with rejection electrostatic efficiency, which uses ring Oxygen/polyester hybrid resin system is film forming matter, selects the conductive material of high-effective conductive, the few and conductive energy of conductive material use ratio Power is strong, has more preferably cost performance.
The present invention also aims to provide the preparation method of the above-mentioned powdery paints with rejection electrostatic efficiency.
Above-mentioned first purpose of the present invention is achieved through the following technical solutions：One kind has rejection electrostatic efficiency Powdery paints, include the component of following proportion by weight：
In the above-mentioned powdery paints with rejection electrostatic efficiency：
Epoxy resin of the present invention is preferably bisphenol A type epoxy resin, and the epoxy of the bisphenol A type epoxy resin is worked as Amount is preferably 600~900g/eq, and more preferably, epoxide equivalent is 750~800g/eq.
Polyester resin of the present invention is preferably saturation terminal carboxyl polyester resin, its acid number is preferably 45~75mgKOH/ G, more preferably, acid number are 50~60mgKOH/g, and softening point is preferably 85~95 DEG C, and more preferably, softening point is 90~95 DEG C.
Filler of the present invention is preferably the one or more of titanium dioxide, barium sulfate and mica powder.
Wrinkle agent of the present invention is preferably one kind or two in esters of acrylic acid, cellulose acetate and polytetrafluoroethylene (PTFE) The mixture of the kind above.
Defoamer of the present invention is preferably diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent of the present invention is preferably quaternary ammonium salt.
Pigment of the present invention is preferably inorganic pigment.
Further, inorganic pigment of the present invention is preferably the one or more in iron oxide yellow, iron oxide red and carbon black.
Conductive material of the present invention be preferably the chopped carbon fiber material of high conductivity and one kind in graphene or Two kinds, its resistivity is less than 0.0014 Ω .cm.
Above-mentioned second purpose of the present invention is achieved through the following technical solutions：It is above-mentioned that there is rejection electrostatic efficiency Powdery paints preparation method, comprise the following steps：
(1) epoxy resin, polyester resin, filler, wrinkle agent, defoamer, growth agent, pigment and conduction material are weighed by proportioning Material is placed in container, is sufficiently mixed and is crushed；
(2) material after will be broken is placed in melting extrusion in extruder；
(3) material after extrusion is packed after tabletting, cooling, crushing, screening up to having the powder of rejection electrostatic efficiency Coating.
In the preparation method for the powdery paints that this has rejection electrostatic efficiency：
The time that each component is sufficiently mixed and crushes in step (1) is preferably 5~25min.
Extruder described in step (2) is single screw extrusion machine, and melting extrusion temperature is preferably 90~100 DEG C.
In step (3) average grain diameter for the powder that material after extrusion obtains after tabletting, cooling, crushing be preferably 40~ 60μm。
The coating process of powdery paints with row's static conductive effect in the present invention is：This is sent out with high-pressure electrostatic method Powder paint in bright is on the metal base Jing Guo pre-treatment, and solidification temperature is 180~200 DEG C, hardening time 10 ~20 minutes, cured using baking box or combustion flue.
Compared with prior art, the invention has the advantages that：
(1) powdery paints of the present invention is film forming matter using epoxy/polyester hybrid resin system, selects the conduction of high-effective conductive Material, conductive material use ratio is few and conductive capability is strong, has more preferably cost performance；
(2) powdery paints of the present invention, has that formula is simple, resistivity is low, electrostatic row leads that effect is good, texture appearance is uniform, The features such as easy for construction, moreover it is possible to substitute paint product, realize the environmentally-friendly coating construction that organic volatile (VOC) is zero.
Embodiment
Embodiment 1
The powdery paints with rejection electrostatic efficiency provided in this embodiment, includes the component of following proportion by weight：
Its epoxy resin is bisphenol A type epoxy resin, the epoxide equivalent of the bisphenol A type epoxy resin for 600~ 900g/eq。
Polyester resin is saturation terminal carboxyl polyester resin, its acid number is 45~75mgKOH/g, and softening point is 85~95 DEG C.
Filler is titanium dioxide and barium sulfate, is respectively 30 parts and 50 parts.
Wrinkle agent is esters of acrylic acid.
Defoamer is diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent is quaternary ammonium salt.
Pigment is inorganic pigment, and inorganic pigment is iron oxide yellow.
Conductive material is the chopped carbon fiber material of high conductivity, its resistivity is less than 0.0014 Ω .cm.
This has the preparation method of the powdery paints of rejection electrostatic efficiency, comprises the following steps：
(1) epoxy resin, polyester resin, filler, wrinkle agent, defoamer, growth agent, pigment and conduction material are weighed by proportioning Material is placed in container compounding jar, is sufficiently mixed and is crushed；
(2) material after will be broken is placed in melting extrusion in extruder；
(3) material after extrusion is packed after tabletting, cooling, crushing, screening up to having the powder of rejection electrostatic efficiency Coating.
The time that each component is sufficiently mixed and crushes in step (1) is 10min.
Extruder is single screw extrusion machine in step (2), and melting extrusion temperature is 95~100 DEG C.
The average grain diameter for the powder that material after extrusion obtains after tabletting, cooling, crushing is 40~60 μm in step (3) (equivalent grain size D50).
Embodiment 2
The powdery paints with rejection electrostatic efficiency provided in this embodiment, includes the component of following proportion by weight：
Its epoxy resin is bisphenol A type epoxy resin, the epoxide equivalent of the bisphenol A type epoxy resin for 600~ 900g/eq。
Polyester resin is saturation terminal carboxyl polyester resin, its acid number is 45~75mgKOH/g, and softening point is 85~95 DEG C.
Filler is titanium dioxide and mica powder, is respectively 30 parts and 50 parts.
Wrinkle agent is cellulose acetate.
Defoamer is diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent is quaternary ammonium salt.
Pigment is carbon black.
Conductive material is the chopped carbon fiber of high conductivity, its resistivity is less than 0.0014 Ω .cm.
Preparation method is the same as embodiment 1.
Embodiment 3
The powdery paints with rejection electrostatic efficiency provided in this embodiment, includes the component of following proportion by weight：
The similar embodiment 1 of specifically kind of each component.Its epoxy resin is bisphenol A type epoxy resin, the bisphenol-A type ring The epoxide equivalent of oxygen tree fat is 600~900g/eq.
Polyester resin is saturation terminal carboxyl polyester resin, its acid number is 45~75mgKOH/g, and softening point is 85~95 DEG C.
Filler is mica powder.
Wrinkle agent is polytetrafluoroethylene (PTFE).
Defoamer is diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent is quaternary ammonium salt.
Pigment iron oxide red.
Conductive material is graphene
Preparation method is the same as embodiment 1.
Embodiment 4
The powdery paints with rejection electrostatic efficiency provided in this embodiment, includes the component of following proportion by weight：
Its epoxy resin is bisphenol A type epoxy resin, the epoxide equivalent of the bisphenol A type epoxy resin for 600~ 900g/eq。
Polyester resin is saturation terminal carboxyl polyester resin, its acid number is 45~75mgKOH/g, and softening point is 85~95 DEG C.
Filler is mica powder and barium sulfate, is respectively 50 parts and 50 parts.
Wrinkle agent is esters of acrylic acid.
Defoamer is diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent is quaternary ammonium salt.
Pigment carbon black.
Conductive material is the chopped carbon fiber of high conductivity.
Preparation method is the same as embodiment 1.
Embodiment 5
The powdery paints with rejection electrostatic efficiency provided in this embodiment, includes the component of following proportion by weight：
Its epoxy resin is bisphenol A type epoxy resin, the epoxide equivalent of the bisphenol A type epoxy resin for 600~ 900g/eq。
Polyester resin is saturation terminal carboxyl polyester resin, its acid number is 45~75mgKOH/g, and softening point is 85~95 DEG C.
Filler is titanium dioxide and barium sulfate, is respectively 30 parts and 30 parts.
Wrinkle agent is esters of acrylic acid.
Defoamer is diphenylhydroxyethanone (styrax), and fusing point is 137 DEG C.
Growth agent is quaternary ammonium salt.
Pigment is 2.0 parts of iron oxide yellow, 1.0 powder of iron oxide red.
Conductive material graphene.
Preparation method is the same as embodiment 1.
The coating process of powdery paints with row's static conductive effect in the above embodiment of the present invention 1-5 is：Use high pressure Electrostatic methods are sprayed at by handling on metal base, and coating layer thickness is 80~150 μm, using at hot 180~200 DEG C of baking box Cured within 10~20 minutes, then carry out relevant performance test.
The result of embodiment 1-5 performance tests refers to table 1 below.
The result of 1 embodiment 1-5 performance tests of table
Each component cited by the present invention, and the bound of each component of the present invention, section value can realize the present invention, Embodiment numerous to list herein.A part of specific embodiment is enumerated above, and the present invention will be described, it is necessary to it is pointed out here that Be that specific embodiment is served only for that the present invention is further illustrated up and down, do not represent limiting the scope of the invention. Some nonessential modifications and adjustment that other people make according to the present invention still fall within protection scope of the present invention.

Claims (10)

  1. A kind of 1. powdery paints with rejection electrostatic efficiency, it is characterized in that including the component of following proportion by weight：
  2. 2. the powdery paints with rejection electrostatic efficiency according to claim 1, it is characterized in that：The epoxy resin is Bisphenol A type epoxy resin, the epoxide equivalent of the bisphenol A type epoxy resin is 600~900g/eq.
  3. 3. the powdery paints with rejection electrostatic efficiency according to claim 1, it is characterized in that：The polyester resin is Saturation terminal carboxyl polyester resin, its acid number are 45~75mgKOH/g, and softening point is 85~95 DEG C.
  4. 4. the powdery paints with rejection electrostatic efficiency according to claim 1, it is characterized in that：The filler is titanium white The one or more of powder, barium sulfate and mica powder；The wrinkle agent is esters of acrylic acid, cellulose acetate and polytetrafluoroethylene (PTFE) One or both of more than mixture.
  5. 5. the powdery paints with rejection electrostatic efficiency according to claim 1, it is characterized in that：The defoamer is two Benzyl carbinol ketone；The growth agent is quaternary ammonium salt；The pigment is inorganic pigment, and the inorganic pigment is iron oxide yellow, iron oxide red With the one or more in carbon black.
  6. 6. the powdery paints with rejection electrostatic efficiency according to claim 1, it is characterized in that：The conductive material is One or both of the chopped carbon fiber material of high conductivity and graphene, its resistivity are less than 0.0014 Ω .cm.
  7. 7. claim 1-6 any one of them has the preparation method of the powdery paints of rejection electrostatic efficiency, it is characterized in that bag Include following steps：
    (1) epoxy resin, polyester resin, filler, wrinkle agent, defoamer, growth agent, pigment and conductive material is weighed by proportioning to put In container, it is sufficiently mixed and crushes；
    (2) material after will be broken is placed in melting extrusion in extruder；
    (3) material after extrusion is packed after tabletting, cooling, crushing, screening up to having the powdery paints of rejection electrostatic efficiency.
  8. 8. the preparation method of the powdery paints according to claim 7 with rejection electrostatic efficiency, it is characterized in that：Step (1) time that each component is sufficiently mixed and crushes in is 5~25min.
  9. 9. the preparation method of the powdery paints according to claim 7 with rejection electrostatic efficiency, it is characterized in that：Step (2) extruder described in is single screw extrusion machine, and melting extrusion temperature is 90~100 DEG C.
  10. 10. the preparation method of the powdery paints according to claim 7 with rejection electrostatic efficiency, it is characterized in that：Step (3) average grain diameter for the powder that material after extrusion obtains after tabletting, cooling, crushing is 40~60 μm in.
CN201711118986.2A 2017-11-14 2017-11-14 A kind of powdery paints with rejection electrostatic efficiency and preparation method thereof Pending CN107936784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201711118986.2A CN107936784A (en) 2017-11-14 2017-11-14 A kind of powdery paints with rejection electrostatic efficiency and preparation method thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108977000A (en) * 2018-08-24 2018-12-11 六安科瑞达新型材料有限公司 A kind of antistatic powdery paints
CN109593448A (en) * 2018-11-27 2019-04-09 江门市皇宙实业有限公司 A kind of powdery paints of energy replacing electroplating nickel effect
CN110982376A (en) * 2019-11-28 2020-04-10 老虎表面技术新材料（清远）有限公司 Anti-skid powder coating and online coating method thereof
CN111334157A (en) * 2020-02-17 2020-06-26 安徽华辉塑业科技股份有限公司 Powder coating for wooden furniture and preparation method thereof
CN112048229A (en) * 2020-09-11 2020-12-08 山东东宏管业股份有限公司 Sintered epoxy powder material, coated steel pipe and preparation method and application thereof
CN115368804A (en) * 2022-09-17 2022-11-22 左志勇 Powder coating and spraying method with high powder coating efficiency
CN116218380A (en) * 2023-04-07 2023-06-06 遵义春华新材料科技有限公司 Powder coating and preparation method thereof

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CN104497809A (en) * 2014-12-31 2015-04-08 山东朗法博粉末涂装科技有限公司 Conductive powder coating
CN106318148A (en) * 2016-08-31 2017-01-11 苏州翰晨商贸有限公司 Anti-static texturing powder coating
CN106634468A (en) * 2016-10-01 2017-05-10 燕园众欣纳米科技（北京）有限公司 Graphene transparent powder coating for tribo gun to spray MDF plate

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CN106318148A (en) * 2016-08-31 2017-01-11 苏州翰晨商贸有限公司 Anti-static texturing powder coating
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108977000A (en) * 2018-08-24 2018-12-11 六安科瑞达新型材料有限公司 A kind of antistatic powdery paints
CN109593448A (en) * 2018-11-27 2019-04-09 江门市皇宙实业有限公司 A kind of powdery paints of energy replacing electroplating nickel effect
CN110982376A (en) * 2019-11-28 2020-04-10 老虎表面技术新材料（清远）有限公司 Anti-skid powder coating and online coating method thereof
CN110982376B (en) * 2019-11-28 2021-11-05 老虎表面技术新材料（清远）有限公司 Anti-skid powder coating and online coating method thereof
CN111334157A (en) * 2020-02-17 2020-06-26 安徽华辉塑业科技股份有限公司 Powder coating for wooden furniture and preparation method thereof
CN112048229A (en) * 2020-09-11 2020-12-08 山东东宏管业股份有限公司 Sintered epoxy powder material, coated steel pipe and preparation method and application thereof
CN112048229B (en) * 2020-09-11 2021-11-19 山东东宏管业股份有限公司 Sintered epoxy powder material, coated steel pipe and preparation method and application thereof
CN115368804A (en) * 2022-09-17 2022-11-22 左志勇 Powder coating and spraying method with high powder coating efficiency
CN116218380A (en) * 2023-04-07 2023-06-06 遵义春华新材料科技有限公司 Powder coating and preparation method thereof

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