WO2022111515A1 - Decorative fluorocarbon powder coating and preparation process therefor - Google Patents

Decorative fluorocarbon powder coating and preparation process therefor Download PDF

Info

Publication number
WO2022111515A1
WO2022111515A1 PCT/CN2021/132732 CN2021132732W WO2022111515A1 WO 2022111515 A1 WO2022111515 A1 WO 2022111515A1 CN 2021132732 W CN2021132732 W CN 2021132732W WO 2022111515 A1 WO2022111515 A1 WO 2022111515A1
Authority
WO
WIPO (PCT)
Prior art keywords
parts
powder coating
fluorocarbon powder
decorative
epoxy resin
Prior art date
Application number
PCT/CN2021/132732
Other languages
French (fr)
Chinese (zh)
Inventor
夏连心
方志望
朱满子
李时雨
Original Assignee
湖南连心科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 湖南连心科技有限公司 filed Critical 湖南连心科技有限公司
Publication of WO2022111515A1 publication Critical patent/WO2022111515A1/en

Links

Classifications

    • 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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/18—Homopolymers or copolymers of tetrafluoroethene
    • 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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/14—Homopolymers or copolymers of vinyl fluoride
    • 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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C09D127/16—Homopolymers or copolymers of vinylidene fluoride
    • 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
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2248—Oxides; Hydroxides of metals of copper
    • 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
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • 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
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

Definitions

  • the invention belongs to the field of powder coatings, in particular to a decorative fluorocarbon powder coating and a preparation process thereof.
  • Fluorocarbon coatings have excellent weather resistance, corrosion resistance, chemical resistance, anti-fouling and self-cleaning properties, and are widely used in construction, vehicles, bridges, ships, chemical anti-corrosion and new energy fields.
  • ordinary fluorocarbon coatings contain a large amount of VOCs, which are easily volatilized into the atmosphere during use, which not only causes waste of resources, but also pollutes the environment and seriously affects people's health.
  • the VOC content of water-based fluorocarbon coatings is low, but due to factors such as synthesis technology and performance, its application in the field of industrial coatings is still very limited.
  • Powder fluorocarbon coatings have no VOC emissions in the production and coating process and meet environmental protection requirements, but they will inevitably come into contact with the outside world and cause scratches during the decoration process, or suffer from inevitable objects or human factors. Friction will leave scratches or scratches on the surface of the coating film, resulting in a decrease in decorative performance. Therefore, it is necessary to develop a fluorocarbon powder coating with anti-scratch performance.
  • Scratch resistance is not only related to hardness, but also to the toughness of the coating film and the smoothness of the surface of the paint film.
  • the paint film has good toughness, the paint film can be deformed to avoid being scratched, and after the force has passed, it will return to its original state; when the paint film is smooth, the scratching force of relative movement can be reduced.
  • the high hardness, good toughness and high degree of smoothness of the coating film can further enhance the scratch resistance of the coating film.
  • the purpose of the present invention is to provide a decorative fluorocarbon powder coating and a preparation process thereof.
  • the fluorocarbon powder coating prepared by the process has high surface hardness, good toughness, and high smoothness. degree of scratch resistance.
  • a decorative fluorocarbon powder coating comprising the following components in parts by weight: 85-100 parts of fluororesin, 15-35 parts of epoxy resin, 10-15 parts of polycaprolactone, and 5-15 parts of curing agent. 15 parts, 10-20 parts of ramie fiber, 10-80 parts of filler, 2-5 parts of leveling agent.
  • a decorative fluorocarbon powder coating comprises the following components in parts by weight: 85-90 parts of fluororesin, 15-20 parts of epoxy resin, 12-15 parts of polycaprolactone, cured 5-10 parts of ramie fiber, 15-20 parts of ramie fiber, 30-70 parts of filler, 2-4 parts of leveling agent.
  • a decorative fluorocarbon powder coating comprises the following components in parts by weight: 95 parts of fluororesin, 20 parts of epoxy resin, 12 parts of polycaprolactone, 8 parts of curing agent, ramie fiber 15 parts, 60 parts filler, 3 parts leveling agent.
  • the fluororesin is one of polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, and polyvinyl fluoride.
  • the epoxy resin is a bisphenol A epoxy resin or a novolac epoxy resin.
  • the curing agent is one or more mixtures of diaminodiphenylsulfone, dicyandiamide and phenolic hydroxyl resin.
  • the preparation process of the ramie fiber is as follows: first, peel off the ramie skin from the ramie plant, remove the cuticle on the surface of the ramie skin, then put it into a 12-15% NaOH solution and soak it for 6-8 hours. Dried and crushed to obtain ramie fiber.
  • the filler is a mixture of nano-copper oxide, nano-zinc oxide, titanium dioxide, and silicon micropowder.
  • a preparation process of a decorative fluorocarbon powder coating comprising the following process steps:
  • Step 1 Weigh fluororesin, ramie fiber, filler, and leveling agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
  • Step 2 extrude the raw materials mixed in step 1 into an extruder and press them into tablets at a temperature of 100-150°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
  • Step 3 Weigh the epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
  • Step 4 melt extruding the raw materials mixed in step 3, the extrusion temperature is 120-180 °C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
  • Step 5 After uniformly dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, a fluorocarbon powder coating is obtained.
  • the particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 ⁇ m.
  • the beneficial effects of the present invention are: (1) The fluorocarbon powder coating prepared by the present invention enhances the tensile strength and toughness of the coating according to the influence of the ramie fiber on the performance of the epoxy resin/polycaprolactone blend system, so that the It has scratch resistance properties of high surface hardness, good toughness and high smoothness;
  • the present invention adopts epoxy resin and polycaprolactone to mix to form an epoxy resin/polycaprolactone blend system, and then adds ramie fiber, the fiber molecules contained are entangled with the polycaprolactone molecular chain and are in different Through the phase interval, the mechanical properties of the polycaprolactone-enriched phase are further improved. With the continuous addition of ramie fibers, the tensile strength and impact strength of the blend system are enhanced, and the toughness of the system is improved;
  • the filler used in the present invention will undergo in-situ reduction in a molten state to produce a metallization phenomenon, and some components of the added ramie fibers will be carbonized under high temperature conditions, and the carbonized components after mixing will cause nano-oxidation in the filler.
  • the in-situ reduction of copper and nano-zinc oxide makes it appear metallized, and with the assistance of the leveling agent, the surface gloss of the coating film obtained by spraying and curing the coating is high, and the smoothness is also significantly improved.
  • the preparation process of ramie fiber in the following examples is: at first peel off the ramie bark from the ramie plant, remove the cuticle on the surface of the ramie bark, then put it into a 15% NaOH solution and soak for 8h, rinse, dry in the sun, and pulverize the ramie fiber. ramie fiber.
  • a fluorocarbon powder coating for decoration comprising the following components in parts by weight: 95 parts of fluororesin, 20 parts of bisphenol A epoxy resin, 12 parts of polycaprolactone, 8 parts of curing agent, ramie 15 parts of fiber, 60 parts of filler, 3 parts of leveling agent.
  • a preparation process of a decorative fluorocarbon powder coating comprising the following process steps:
  • Step 1 Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 6min;
  • Step 2 extrude the raw materials mixed in step 1 into tablets through an extruder, the extrusion temperature is 150°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
  • Step 3 Weigh bisphenol A epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6min;
  • Step 4 melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 180 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for subsequent use;
  • Step 5 After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
  • the particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 ⁇ m.
  • a fluorocarbon powder coating for decoration comprising the following components in parts by weight: 85 parts of fluororesin, 35 parts of bisphenol A epoxy resin, 10 parts of polycaprolactone, 5 parts of curing agent, ramie 20 parts of fiber, 80 parts of filler, 5 parts of leveling agent.
  • a preparation process of a decorative fluorocarbon powder coating comprising the following process steps:
  • Step 1 Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 10min;
  • Step 2 extrude the raw materials mixed in step 1 into tablets through an extruder, the extrusion temperature is 100°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
  • Step 3 Weigh bisphenol A epoxy resin, polycaprolactone and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 10min;
  • Step 4 melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 120 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
  • Step 5 After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
  • the particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 ⁇ m.
  • a fluorocarbon powder coating for decoration comprising the following components in parts by weight: 100 parts of fluororesin, 15 parts of phenolic epoxy resin, 15 parts of polycaprolactone, 15 parts of curing agent, and 10 parts of ramie fiber , 10 parts of filler, 2 parts of leveling agent.
  • a preparation process of a decorative fluorocarbon powder coating comprising the following process steps:
  • Step 1 Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 8min;
  • Step 2 Extrude the raw materials mixed in Step 1 into an extruder and press them into tablets at an extrusion temperature of 125°C, and then cool, pulverize and sieve to obtain Compound 1, which is for later use;
  • Step 3 Weigh the phenolic epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 8min;
  • Step 4 melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 160 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
  • Step 5 After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
  • the particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 ⁇ m.
  • the present invention adopts a series of experiments to analyze the influence of different raw material components on the mechanical properties of the coating, wherein as a comparative example compared with the embodiment, the difference between the raw material formula and the embodiment 1 is shown in Table 1 .
  • Comparative Example 1 Comparative Example 2 Comparative Example 3 Fluorine resin (parts) 95 95 95 95 95 95 95 95 95 95 Epoxy resin (parts) none 20 20 Polycaprolactone (parts) 12 none 12 Curing agent (parts) 8 8 Ramie Fiber (Parts) 15 15 none Filler (parts) 60 60 60 60 Leveling agent (parts) 3 3 3
  • the fluorocarbon powder coating prepared by the present invention is based on the influence of ramie fiber on the performance of epoxy resin/polycaprolactone blend system, which enhances the tensile strength and toughness of the coating. , so that it has high surface hardness, good toughness, high degree of smoothness and scratch resistance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Disclosed is a decorative fluorocarbon powder coating, pertaining to the field of powder coatings, and comprising the following components in parts by weight: 85-100 parts of a fluororesin, 15-35 parts of an epoxy resin, 10-15 parts of a polycaprolactone, 5-15 parts of a curing agent, 10-20 parts of a ramie fiber, 10-80 parts of a filler, and 2-5 parts of a leveling agent. Further disclosed is a preparation process for the decorative fluorocarbon powder coating. The fluorocarbon powder coating prepared by the process has anti-scratch properties of high surface hardness, good toughness, and high smoothness.

Description

一种装饰用氟碳粉末涂料及其制备工艺A kind of decorative fluorocarbon powder coating and preparation process thereof 技术领域technical field
本发明属于粉末涂料领域，具体涉及一种装饰用氟碳粉末涂料及其制备工艺。The invention belongs to the field of powder coatings, in particular to a decorative fluorocarbon powder coating and a preparation process thereof.
背景技术Background technique
氟碳涂料具有优异的耐候性、耐腐蚀性、耐化学药品性及防污自清洁等性能，被广泛应用于建筑、车辆、桥梁、船舶、化工防腐以及新能源等领域。但普通氟碳涂料中含有大量的VOC，在使用过程中易挥发到大气中，不仅造成资源浪费，而且污染环境，严重影响人们的身体健康。水性氟碳涂料VOC含量较低，但受合成技术、性能等因素影响，其在工业涂料领域中的应用还十分有限。粉末氟碳涂料在生产和涂装过程中无VOC排放，符合环保要求，但其在装饰过程中会不可避免的与外界进行接触并产生刮擦，或遭受不可避免的物体或人为因素的剐蹭和摩擦，都将在涂膜的表面留下划痕或划伤，造成装饰性能下降，因此，研发出一种具有抗划伤性能的氟碳粉末涂料是很有必要的。Fluorocarbon coatings have excellent weather resistance, corrosion resistance, chemical resistance, anti-fouling and self-cleaning properties, and are widely used in construction, vehicles, bridges, ships, chemical anti-corrosion and new energy fields. However, ordinary fluorocarbon coatings contain a large amount of VOCs, which are easily volatilized into the atmosphere during use, which not only causes waste of resources, but also pollutes the environment and seriously affects people's health. The VOC content of water-based fluorocarbon coatings is low, but due to factors such as synthesis technology and performance, its application in the field of industrial coatings is still very limited. Powder fluorocarbon coatings have no VOC emissions in the production and coating process and meet environmental protection requirements, but they will inevitably come into contact with the outside world and cause scratches during the decoration process, or suffer from inevitable objects or human factors. Friction will leave scratches or scratches on the surface of the coating film, resulting in a decrease in decorative performance. Therefore, it is necessary to develop a fluorocarbon powder coating with anti-scratch performance.
抗划伤不仅与硬度有关，也与涂膜的韧性、漆膜表面的滑爽程度相关。当漆膜韧性良好时，漆膜可以通过形变来避免被划伤，作用力过后，再回复原状；当漆膜较滑爽，则能够减轻相对移动的刮擦作用力。涂膜的硬度高和韧性好、滑爽程度高可进一步增强涂膜的抗划伤性能。Scratch resistance is not only related to hardness, but also to the toughness of the coating film and the smoothness of the surface of the paint film. When the paint film has good toughness, the paint film can be deformed to avoid being scratched, and after the force has passed, it will return to its original state; when the paint film is smooth, the scratching force of relative movement can be reduced. The high hardness, good toughness and high degree of smoothness of the coating film can further enhance the scratch resistance of the coating film.
发明内容SUMMARY OF THE INVENTION
针对现有技术中存在的问题，本发明的目的在于提供一种装饰用氟碳粉末涂料及其制备工艺，该工艺制备得到的氟碳粉末涂料具有高表面硬度、良好韧性、高爽滑程度的抗划伤特性。In view of the problems existing in the prior art, the purpose of the present invention is to provide a decorative fluorocarbon powder coating and a preparation process thereof. The fluorocarbon powder coating prepared by the process has high surface hardness, good toughness, and high smoothness. degree of scratch resistance.
为实现以上目的，本发明采取的技术方案是：For realizing the above purpose, the technical scheme that the present invention takes is:
一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯85-100份、环氧树脂15-35份、聚己内酯10-15份、固化剂5-15份、苎麻纤维10-20份、填料10-80份、流平剂2-5份。A decorative fluorocarbon powder coating, comprising the following components in parts by weight: 85-100 parts of fluororesin, 15-35 parts of epoxy resin, 10-15 parts of polycaprolactone, and 5-15 parts of curing agent. 15 parts, 10-20 parts of ramie fiber, 10-80 parts of filler, 2-5 parts of leveling agent.
优选地，一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯85-90份、环氧树脂15-20份、聚己内酯12-15份、固化剂5-10份、苎麻纤维15-20份、填料30-70份、流平剂2-4份。Preferably, a decorative fluorocarbon powder coating comprises the following components in parts by weight: 85-90 parts of fluororesin, 15-20 parts of epoxy resin, 12-15 parts of polycaprolactone, cured 5-10 parts of ramie fiber, 15-20 parts of ramie fiber, 30-70 parts of filler, 2-4 parts of leveling agent.
优选地，一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯95份、 环氧树脂20份、聚己内酯12份、固化剂8份、苎麻纤维15份、填料60份、流平剂3份。Preferably, a decorative fluorocarbon powder coating comprises the following components in parts by weight: 95 parts of fluororesin, 20 parts of epoxy resin, 12 parts of polycaprolactone, 8 parts of curing agent, ramie fiber 15 parts, 60 parts filler, 3 parts leveling agent.
进一步地，所述氟树酯为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、聚氟乙烯的一种。Further, the fluororesin is one of polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, and polyvinyl fluoride.
进一步地，所述环氧树脂为双酚A型环氧树脂或酚醛环氧树脂。Further, the epoxy resin is a bisphenol A epoxy resin or a novolac epoxy resin.
进一步地，所述固化剂为二氨基二苯砜、双氰胺、酚羟基树脂中的一种或多种混合物。Further, the curing agent is one or more mixtures of diaminodiphenylsulfone, dicyandiamide and phenolic hydroxyl resin.
进一步地，所述苎麻纤维的制备过程是：首先从苎麻植株上剥下苎麻皮，将苎麻皮表面的角质层去掉，然后放入12-15％NaOH溶液中浸泡6-8h，经漂洗、晒干、粉碎制得苎麻纤维。Further, the preparation process of the ramie fiber is as follows: first, peel off the ramie skin from the ramie plant, remove the cuticle on the surface of the ramie skin, then put it into a 12-15% NaOH solution and soak it for 6-8 hours. Dried and crushed to obtain ramie fiber.
进一步地，所述填料为纳米氧化铜、纳米氧化锌、钛白粉、硅微粉的混合物。Further, the filler is a mixture of nano-copper oxide, nano-zinc oxide, titanium dioxide, and silicon micropowder.
一种装饰用氟碳粉末涂料的制备工艺，包括以下工艺步骤：A preparation process of a decorative fluorocarbon powder coating, comprising the following process steps:
步骤1：按上述重量份数配比称取氟树酯、苎麻纤维、填料、流平剂，然后采用高速混合机进行混合，混合时间为6-10min；Step 1: Weigh fluororesin, ramie fiber, filler, and leveling agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
步骤2：将步骤1混合后的原料经挤出机中挤出压片，挤出温度为100-150℃，再经冷却、粉碎、过筛得到混合料1，备用；Step 2: extrude the raw materials mixed in step 1 into an extruder and press them into tablets at a temperature of 100-150°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
步骤3：按上述重量份数配比称取环氧树脂、聚己内酯、固化剂，然后采用高速混合机进行混合，混合时间为6-10min；Step 3: Weigh the epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
步骤4：将步骤3混合后的原料进行熔融挤出，挤出温度为120-180℃，再经压片、冷却、粉碎、过筛得到的混合料2，备用；Step 4: melt extruding the raw materials mixed in step 3, the extrusion temperature is 120-180 ℃, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
步骤5：将步骤2得到的混合料1和步骤4得到的混合料4进行干混均匀后，得到氟碳粉末涂料。Step 5: After uniformly dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, a fluorocarbon powder coating is obtained.
进一步地，所述步骤2和步骤4分别得到的混合料1和混合料2粉体粒径为5-20μm。Further, the particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 μm.
本发明的有益效果是：(1)本发明制备得到的氟碳粉末涂料是根据苎麻纤维对环氧树脂/聚己内酯共混体系性能影响，增强了涂料的拉伸强度和韧性，使其具有高表面硬度、良好韧性、高爽滑程度的抗划伤特性；The beneficial effects of the present invention are: (1) The fluorocarbon powder coating prepared by the present invention enhances the tensile strength and toughness of the coating according to the influence of the ramie fiber on the performance of the epoxy resin/polycaprolactone blend system, so that the It has scratch resistance properties of high surface hardness, good toughness and high smoothness;
(2)本发明采用环氧树脂和聚己内酯进行混合形成环氧树脂/聚己内酯共混体系，再加入苎麻纤维，含有的纤维分子与聚己内酯分子链缠结并且在不同相区间进行贯穿，从而使聚己内酯富集相的力学性能进一步改善，随着苎麻纤维的不断加入，共混体系的拉伸强度和冲击强度增强，改善了体系的韧性；(2) The present invention adopts epoxy resin and polycaprolactone to mix to form an epoxy resin/polycaprolactone blend system, and then adds ramie fiber, the fiber molecules contained are entangled with the polycaprolactone molecular chain and are in different Through the phase interval, the mechanical properties of the polycaprolactone-enriched phase are further improved. With the continuous addition of ramie fibers, the tensile strength and impact strength of the blend system are enhanced, and the toughness of the system is improved;
(3)本发明所采用的填料在熔融状态下会发生原位还原使其产生金属化现象，加入的苎麻纤维在高温条件下部分成分会碳化，而混合后碳化的成分会引起填料中纳米氧化铜、纳米氧化锌的原位还原使其呈现金属化，而在流平剂助剂的协助作用下，在涂料进行喷涂并固化得到的涂膜表面光泽度高、爽滑度也明显提高。(3) The filler used in the present invention will undergo in-situ reduction in a molten state to produce a metallization phenomenon, and some components of the added ramie fibers will be carbonized under high temperature conditions, and the carbonized components after mixing will cause nano-oxidation in the filler. The in-situ reduction of copper and nano-zinc oxide makes it appear metallized, and with the assistance of the leveling agent, the surface gloss of the coating film obtained by spraying and curing the coating is high, and the smoothness is also significantly improved.
具体实施方式Detailed ways
为了更好地理解本发明，下面结合实施例对本发明的实施方案进行详细描述，但是本领域技术人员将会理解，下列实施例仅用于说明本发明，而不应视为限制本发明的范围。In order to better understand the present invention, the embodiments of the present invention are described in detail below in conjunction with the examples, but those skilled in the art will understand that the following examples are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention .
下述实施例中苎麻纤维的制备过程是：首先从苎麻植株上剥下苎麻皮，将苎麻皮表面的角质层去掉，然后放入15％NaOH溶液中浸泡8h，经漂洗、晒干、粉碎制得苎麻纤维。The preparation process of ramie fiber in the following examples is: at first peel off the ramie bark from the ramie plant, remove the cuticle on the surface of the ramie bark, then put it into a 15% NaOH solution and soak for 8h, rinse, dry in the sun, and pulverize the ramie fiber. ramie fiber.
实施例1：Example 1:
一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯95份、双酚A型环氧树脂20份、聚己内酯12份、固化剂8份、苎麻纤维15份、填料60份、流平剂3份。A fluorocarbon powder coating for decoration, comprising the following components in parts by weight: 95 parts of fluororesin, 20 parts of bisphenol A epoxy resin, 12 parts of polycaprolactone, 8 parts of curing agent, ramie 15 parts of fiber, 60 parts of filler, 3 parts of leveling agent.
一种装饰用氟碳粉末涂料的制备工艺，包括以下工艺步骤：A preparation process of a decorative fluorocarbon powder coating, comprising the following process steps:
步骤1：按上述重量份数配比称取氟树酯、苎麻纤维、填料、流平剂，然后采用高速混合机进行混合，混合时间为6min；Step 1: Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 6min;
步骤2：将步骤1混合后的原料经挤出机中挤出压片，挤出温度为150℃，再经冷却、粉碎、过筛得到混合料1，备用；Step 2: extrude the raw materials mixed in step 1 into tablets through an extruder, the extrusion temperature is 150°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
步骤3：按上述重量份数配比称取双酚A型环氧树脂、聚己内酯、固化剂，然后采用高速混合机进行混合，混合时间为6min；Step 3: Weigh bisphenol A epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6min;
步骤4：将步骤3混合后的原料进行熔融挤出，挤出温度为180℃，再经压片、冷却、粉碎、过筛得到的混合料2，备用；Step 4: melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 180 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for subsequent use;
步骤5：将步骤2得到的混合料1和步骤4得到的混合料4进行干混均匀后，得到氟碳粉末涂料；Step 5: After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
所述步骤2和步骤4分别得到的混合料1和混合料2粉体粒径为5-20μm。The particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 μm.
实施例2：Example 2:
一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯85份、双酚A型环氧树脂35份、聚己内酯10份、固化剂5份、苎麻纤维20份、填料80份、流平剂 5份。A fluorocarbon powder coating for decoration, comprising the following components in parts by weight: 85 parts of fluororesin, 35 parts of bisphenol A epoxy resin, 10 parts of polycaprolactone, 5 parts of curing agent, ramie 20 parts of fiber, 80 parts of filler, 5 parts of leveling agent.
一种装饰用氟碳粉末涂料的制备工艺，包括以下工艺步骤：A preparation process of a decorative fluorocarbon powder coating, comprising the following process steps:
步骤1：按上述重量份数配比称取氟树酯、苎麻纤维、填料、流平剂，然后采用高速混合机进行混合，混合时间为10min；Step 1: Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 10min;
步骤2：将步骤1混合后的原料经挤出机中挤出压片，挤出温度为100℃，再经冷却、粉碎、过筛得到混合料1，备用；Step 2: extrude the raw materials mixed in step 1 into tablets through an extruder, the extrusion temperature is 100°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
步骤3：按上述重量份数配比称取双酚A型环氧树脂、聚己内酯、固化剂，然后采用高速混合机进行混合，混合时间为10min；Step 3: Weigh bisphenol A epoxy resin, polycaprolactone and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 10min;
步骤4：将步骤3混合后的原料进行熔融挤出，挤出温度为120℃，再经压片、冷却、粉碎、过筛得到的混合料2，备用；Step 4: melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 120 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
步骤5：将步骤2得到的混合料1和步骤4得到的混合料4进行干混均匀后，得到氟碳粉末涂料；Step 5: After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
所述步骤2和步骤4分别得到的混合料1和混合料2粉体粒径为5-20μm。The particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 μm.
实施例3：Example 3:
一种装饰用氟碳粉末涂料，包括下列重量份数配比的组分：氟树酯100份、酚醛环氧树脂15份、聚己内酯15份、固化剂15份、苎麻纤维10份、填料10份、流平剂2份。A fluorocarbon powder coating for decoration, comprising the following components in parts by weight: 100 parts of fluororesin, 15 parts of phenolic epoxy resin, 15 parts of polycaprolactone, 15 parts of curing agent, and 10 parts of ramie fiber , 10 parts of filler, 2 parts of leveling agent.
一种装饰用氟碳粉末涂料的制备工艺，包括以下工艺步骤：A preparation process of a decorative fluorocarbon powder coating, comprising the following process steps:
步骤1：按上述重量份数配比称取氟树酯、苎麻纤维、填料、流平剂，然后采用高速混合机进行混合，混合时间为8min；Step 1: Weigh fluororesin, ramie fiber, filler and leveling agent according to the above-mentioned parts by weight, and then use a high-speed mixer to mix, and the mixing time is 8min;
步骤2：将步骤1混合后的原料经挤出机中挤出压片，挤出温度为125℃，再经冷却、粉碎、过筛得到混合料1，备用；Step 2: Extrude the raw materials mixed in Step 1 into an extruder and press them into tablets at an extrusion temperature of 125°C, and then cool, pulverize and sieve to obtain Compound 1, which is for later use;
步骤3：按上述重量份数配比称取酚醛环氧树脂、聚己内酯、固化剂，然后采用高速混合机进行混合，混合时间为8min；Step 3: Weigh the phenolic epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 8min;
步骤4：将步骤3混合后的原料进行熔融挤出，挤出温度为160℃，再经压片、冷却、粉碎、过筛得到的混合料2，备用；Step 4: melt extrusion of the raw materials mixed in step 3, the extrusion temperature is 160 ° C, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
步骤5：将步骤2得到的混合料1和步骤4得到的混合料4进行干混均匀后，得到氟碳粉末涂料；Step 5: After dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, fluorocarbon powder coating is obtained;
所述步骤2和步骤4分别得到的混合料1和混合料2粉体粒径为5-20μm。The particle size of the mixed material 1 and the mixed material 2 obtained in the steps 2 and 4 respectively is 5-20 μm.
为了证明上述有益效果，本发明采用一系列实验，分析不同原料成分对涂料力学性 能的影响，其中作为与实施例对比的对比例，其原料配方与实施例1的不同之处如表1所示。In order to prove the above-mentioned beneficial effects, the present invention adopts a series of experiments to analyze the influence of different raw material components on the mechanical properties of the coating, wherein as a comparative example compared with the embodiment, the difference between the raw material formula and the embodiment 1 is shown in Table 1 .
表1Table 1
   对比例1Comparative Example 1 对比例2Comparative Example 2 对比例3Comparative Example 3
氟树酯(份)Fluorine resin (parts) 9595 9595 9595
环氧树脂(份)Epoxy resin (parts) 无none 2020 2020
聚己内酯(份)Polycaprolactone (parts) 1212 无none 1212
固化剂(份)Curing agent (parts) 88 88 88
苎麻纤维(份)Ramie Fiber (Parts) 1515 1515 无none
填料(份)Filler (parts) 6060 6060 6060
流平剂(份)Leveling agent (parts) 33 33 33
取上述实施例和对比例的氟碳粉末涂料，静电喷涂在脱脂冷轧钢板上，涂层厚度为50-100μm，采用热烘烤箱在180℃下，15min固化，然后进行一系列性能测试，按照国家标准GBT23999-2009的条件下检测，测试结果如表2所示。Take the fluorocarbon powder coatings of the above examples and comparative examples, electrostatically spray them on the degreased cold-rolled steel sheet, the coating thickness is 50-100 μm, use a hot oven to cure at 180 ° C for 15 minutes, and then carry out a series of performance tests , tested under the conditions of the national standard GBT23999-2009, and the test results are shown in Table 2.
表2Table 2
Figure PCTCN2021132732-appb-000001
Figure PCTCN2021132732-appb-000001
从上述表1和表2中可以看出，本发明制备得到的氟碳粉末涂料是根据苎麻纤维对环氧树脂/聚己内酯共混体系性能影响，增强了涂料的拉伸强度和韧性，使其具有高表面硬度、良好韧性、高爽滑程度的抗划伤特性。As can be seen from the above Table 1 and Table 2, the fluorocarbon powder coating prepared by the present invention is based on the influence of ramie fiber on the performance of epoxy resin/polycaprolactone blend system, which enhances the tensile strength and toughness of the coating. , so that it has high surface hardness, good toughness, high degree of smoothness and scratch resistance.
上述对实施例的描述是为了便于该技术领域的普通技术人员理解和使用本发明。熟悉本领域的技术人员可以容易地对这些实施例做出各种修改，并把在此说明的一般原理 应用到其他实施例中，而不必经过创造性的劳动。因此，本发明不限于上述实施例。本领域技术人员根据本发明的原理，不脱离本发明的范畴所做出的改进和修改都应该在本发明的保护范围之内。The foregoing description of the embodiments is provided to facilitate understanding and use of the present invention by those of ordinary skill in the art. Those skilled in the art can readily make various modifications to these embodiments and apply the generic principles described herein to other embodiments without inventive step. Therefore, the present invention is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art according to the principles of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (10)

  1. 一种装饰用氟碳粉末涂料，其特征在于，包括下列重量份数配比的组分：氟树酯85-100份、环氧树脂15-35份、聚己内酯10-15份、固化剂5-15份、苎麻纤维10-20份、填料10-80份、流平剂2-5份。A decorative fluorocarbon powder coating, characterized in that it comprises the following components in parts by weight: 85-100 parts of fluororesin, 15-35 parts of epoxy resin, 10-15 parts of polycaprolactone, 5-15 parts of curing agent, 10-20 parts of ramie fiber, 10-80 parts of filler, 2-5 parts of leveling agent.
  2. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，包括下列重量份数配比的组分：氟树酯85-90份、环氧树脂15-20份、聚己内酯12-15份、固化剂5-10份、苎麻纤维15-20份、填料30-70份、流平剂2-4份。A decorative fluorocarbon powder coating according to claim 1, characterized in that it comprises the following components in parts by weight: 85-90 parts of fluororesin, 15-20 parts of epoxy resin, 12-15 parts of lactone, 5-10 parts of curing agent, 15-20 parts of ramie fiber, 30-70 parts of filler, 2-4 parts of leveling agent.
  3. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，包括下列重量份数配比的组分：氟树酯95份、环氧树脂20份、聚己内酯12份、固化剂8份、苎麻纤维15份、填料60份、流平剂3份。A decorative fluorocarbon powder coating according to claim 1, characterized in that it comprises the following components in parts by weight: 95 parts of fluororesin, 20 parts of epoxy resin, and 12 parts of polycaprolactone , 8 parts of curing agent, 15 parts of ramie fiber, 60 parts of filler, 3 parts of leveling agent.
  4. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，所述氟树酯为聚四氟乙烯、聚三氟氯乙烯、聚偏氟乙烯、聚氟乙烯的一种。The fluorocarbon powder coating for decoration according to claim 1, wherein the fluororesin is one of polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, and polyvinyl fluoride.
  5. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，所述环氧树脂为双酚A型环氧树脂或酚醛环氧树脂。The fluorocarbon powder coating for decoration according to claim 1, wherein the epoxy resin is a bisphenol A epoxy resin or a novolac epoxy resin.
  6. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，所述固化剂为二氨基二苯砜、双氰胺、酚羟基树脂中的一种或多种混合物。The fluorocarbon powder coating for decoration according to claim 1, wherein the curing agent is one or more mixtures of diaminodiphenylsulfone, dicyandiamide and phenolic hydroxyl resin.
  7. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，所述苎麻纤维的制备过程是：首先从苎麻植株上剥下苎麻皮，将苎麻皮表面的角质层去掉，然后放入12-15％NaOH溶液中浸泡6-8h，经漂洗、晒干、粉碎制得苎麻纤维。A kind of decorative fluorocarbon powder coating according to claim 1, it is characterized in that, the preparation process of described ramie fiber is: first peel off ramie skin from ramie plant, remove the cuticle on the surface of ramie skin, then Put it into 12-15% NaOH solution to soak for 6-8 hours, rinse, sun-dry and pulverize to obtain ramie fiber.
  8. 根据权利要求1所述的一种装饰用氟碳粉末涂料，其特征在于，所述填料为纳米氧化铜、纳米氧化锌、钛白粉、硅微粉的混合物。A decorative fluorocarbon powder coating according to claim 1, wherein the filler is a mixture of nano-copper oxide, nano-zinc oxide, titanium dioxide, and silicon micropowder.
  9. 根据权利要求1-8任一所述的一种装饰用氟碳粉末涂料的制备工艺，其特征在于，包括以下工艺步骤：The preparation process of a decorative fluorocarbon powder coating according to any one of claims 1-8, characterized in that, comprising the following process steps:
    步骤1：按上述重量份数配比称取氟树酯、苎麻纤维、填料、流平剂，然后采用高速混合机进行混合，混合时间为6-10min；Step 1: Weigh fluororesin, ramie fiber, filler, and leveling agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
    步骤2：将步骤1混合后的原料经挤出机中挤出压片，挤出温度为100-150℃，再经冷却、粉碎、过筛得到混合料1，备用；Step 2: extrude the raw materials mixed in step 1 into an extruder and press them into tablets at a temperature of 100-150°C, and then cool, pulverize and sieve to obtain a mixture 1, which is for later use;
    步骤3：按上述重量份数配比称取环氧树脂、聚己内酯、固化剂，然后采用高速混合机进行混合，混合时间为6-10min；Step 3: Weigh the epoxy resin, polycaprolactone, and curing agent according to the above-mentioned proportions by weight, and then use a high-speed mixer to mix, and the mixing time is 6-10min;
    步骤4：将步骤3混合后的原料进行熔融挤出，挤出温度为120-180℃，再经压片、冷却、粉碎、过筛得到的混合料2，备用；Step 4: melt extruding the raw materials mixed in step 3, the extrusion temperature is 120-180 ℃, and then the mixture 2 obtained by tableting, cooling, pulverizing and sieving is for later use;
    步骤5：将步骤2得到的混合料1和步骤4得到的混合料4进行干混均匀后，得到氟碳粉末涂料。Step 5: After uniformly dry mixing the mixture 1 obtained in step 2 and the mixture 4 obtained in step 4, a fluorocarbon powder coating is obtained.
  10. 根据权利要求9所述的一种装饰用氟碳粉末涂料的制备工艺，其特征在于，所述步骤2和步骤4分别得到的混合料1和混合料2粉体粒径为5-20μm。The preparation process of a decorative fluorocarbon powder coating according to claim 9, wherein the particle size of the mixture 1 and the mixture 2 obtained in the steps 2 and 4 respectively is 5-20 μm.
PCT/CN2021/132732 2020-11-26 2021-11-24 Decorative fluorocarbon powder coating and preparation process therefor WO2022111515A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011348366.XA CN112409860A (en) 2020-11-26 2020-11-26 Decorative fluorocarbon powder coating and preparation process thereof
CN202011348366.X 2020-11-26

Publications (1)

Publication Number Publication Date
WO2022111515A1 true WO2022111515A1 (en) 2022-06-02

Family

ID=74843648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/132732 WO2022111515A1 (en) 2020-11-26 2021-11-24 Decorative fluorocarbon powder coating and preparation process therefor

Country Status (2)

Country Link
CN (1) CN112409860A (en)
WO (1) WO2022111515A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115651491A (en) * 2022-12-15 2023-01-31 南通欣然粉末涂料有限公司 Corrosion-resistant powder coating and production process thereof
CN117567908A (en) * 2024-01-17 2024-02-20 江苏华光控股集团有限公司 Fluorocarbon powder coating and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112409860A (en) * 2020-11-26 2021-02-26 湖南连心科技有限公司 Decorative fluorocarbon powder coating and preparation process thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105315845A (en) * 2015-11-25 2016-02-10 安徽圣德建材科技有限公司 High-strength water-resistant corrosion-resistant epoxy resin powder coating
CN106883694A (en) * 2017-03-31 2017-06-23 中山市凯德美氟碳新材料有限公司 A kind of industrial equipment anticorrosion fluorocarbon powder paint and preparation method thereof
CN108977009A (en) * 2018-06-20 2018-12-11 天长市金陵电子有限责任公司 A kind of electrostatic spraying antimicrobial antirust coating and preparation method thereof
CN112144139A (en) * 2020-09-28 2020-12-29 深圳市德诚旺科技有限公司 Anti-fracture polytetrafluoroethylene fiber and preparation process thereof
CN112409860A (en) * 2020-11-26 2021-02-26 湖南连心科技有限公司 Decorative fluorocarbon powder coating and preparation process thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109176773B (en) * 2018-09-14 2021-03-02 中南林业科技大学 Nano copper oxide in-situ reduction wood composite material and preparation method thereof
CN111635696A (en) * 2020-05-25 2020-09-08 黄永华 Freeze-thaw resistant water-based terrace and construction method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105315845A (en) * 2015-11-25 2016-02-10 安徽圣德建材科技有限公司 High-strength water-resistant corrosion-resistant epoxy resin powder coating
CN106883694A (en) * 2017-03-31 2017-06-23 中山市凯德美氟碳新材料有限公司 A kind of industrial equipment anticorrosion fluorocarbon powder paint and preparation method thereof
CN108977009A (en) * 2018-06-20 2018-12-11 天长市金陵电子有限责任公司 A kind of electrostatic spraying antimicrobial antirust coating and preparation method thereof
CN112144139A (en) * 2020-09-28 2020-12-29 深圳市德诚旺科技有限公司 Anti-fracture polytetrafluoroethylene fiber and preparation process thereof
CN112409860A (en) * 2020-11-26 2021-02-26 湖南连心科技有限公司 Decorative fluorocarbon powder coating and preparation process thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115651491A (en) * 2022-12-15 2023-01-31 南通欣然粉末涂料有限公司 Corrosion-resistant powder coating and production process thereof
CN115651491B (en) * 2022-12-15 2023-11-14 北京久顺启航新材料有限公司 Corrosion-resistant powder coating and production process thereof
CN117567908A (en) * 2024-01-17 2024-02-20 江苏华光控股集团有限公司 Fluorocarbon powder coating and preparation method thereof
CN117567908B (en) * 2024-01-17 2024-03-15 江苏华光控股集团有限公司 Fluorocarbon powder coating and preparation method thereof

Also Published As

Publication number Publication date
CN112409860A (en) 2021-02-26

Similar Documents

Publication Publication Date Title
WO2022111515A1 (en) Decorative fluorocarbon powder coating and preparation process therefor
CN102533063B (en) Ultraviolet ray-curable low-gloss flow-coating paint and preparation method thereof
WO2017036085A2 (en) Graphene heavy-duty anti-corrosion environmentally friendly hard repair coating and preparation method therefor
CN102977760B (en) A kind of Thick film type polyurethane finish paint
BE897866A (en) COATING COMPOSITION CONSISTING OF A MIXTURE OF A GLYCIDYL-ACRYLIC POLYMER AND A REACTIVE POLYSILOXANE
CN104194583A (en) Weather-resistant type powder paint capable of substituting aluminum profile chromating process and preparation method of weather-resistant type powder paint
CN106675348A (en) Powder coating for aluminum template and preparation method and application of powder coating
CN103788831A (en) Corrosion-proof ice-covering-proof coating
KR102197586B1 (en) A paint composition using oyster shell
CN107513344A (en) A kind of LED UV ultraviolet cured woodware nano paints and preparation method thereof
CN106433416A (en) High temperature-resistant primer, and preparation method and application thereof
CN110105493A (en) The preparation process of the type of resistance to UV hydrophobic material
CN105440894B (en) For Metal surface anti-corrosion light solidifying paint composition
CN110819214A (en) Preparation method of ultralow-temperature fast-curing powder coating resin for medium-density board
EP2966194B1 (en) Zinc-based composite material and use thereof
CN110982410A (en) Electrostatic spraying powder coating and preparation method and application thereof
CN104962193A (en) Corrosion-resistant polyester-polyurethane powder coating
CN110540785B (en) Paint suitable for rolling spraying, metal button and preparation method thereof
CN112457748B (en) High-toughness low-temperature-resistant powder coating and preparation method thereof
CN106752273A (en) A kind of aluminium section bar protective coating dedicated weather-proof agent and preparation method thereof
US11203686B2 (en) Polymer wax powder having a self-repairing function and preparation method thereof
WO2022088119A1 (en) Water-based paint highly imitating aluminum composite panel, and preparation method for water-based paint
CN113105799A (en) Fingerprint-resistant liquid containing double photosensitive resin frameworks
CN103756553A (en) Nylon dry powder heat-radiating coating
DE60117444T2 (en) resin composition

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21897016

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21897016

Country of ref document: EP

Kind code of ref document: A1