Abstract

The present invention discloses an anti-skid powder coating composition and a coating layer thereof. The anti-skid powder coating composition comprises at least the following raw materials: a thermosetting resin which accounts for not less than 40 wt% of the anti-skid powder coating composition in parts by weight, a curing agent used for the thermosetting resin, and a thermoplastic polymer resin, wherein the thermoplastic polymer resin accounts for 5-35 wt% of the thermosetting resin in parts by weight, and the melt index of the thermoplastic polymer resin is not less than 2 g/10 min under the test condition of 190°C/2.16 kg according to the ASTM D1238-2010 standard. In the present invention, on the basis that the protection and decoration performances of the powder coating composition are maintained, the anti-skid performance of a coating layer formed after the powder coating composition is cured can be obviously improved; moreover, the mechanical performance of the coating layer can also be improved to a certain extent.

IPC Classes  ?

• C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
• C09D 5/03 - Powdery paints
• C09D 7/63 - Additives non-macromolecular organic
• C09D 7/65 - Additives macromolecular

Abstract

A method for testing the use stability of an effect powder coating composition during an electrostatic spraying process. The effect powder coating composition comprises an effect pigment and a powder coating composition. The method comprises: respectively preparing an electrostatic effect coating and a reference effect coating, and comparing and judging the use stability of the effect powder coating composition during the electrostatic spraying process on the basis of the difference between the electrostatic effect coating and the reference effect coating. The method can effectively realize the detection of the use stability of the effect powder coating composition during the electrostatic spraying process, the testing process is simple and fast, the testing cost is low, and the method is very suitable for the use in the production or subsequent spraying and recycling processes of the effect powder coating composition.

IPC Classes  ?

• G01N 21/25 - ColourSpectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
• G01N 33/32 - PaintsInks
• G01N 1/28 - Preparing specimens for investigation

Abstract

A powder coating having ultra-high weather-resistant and matting effects includes a first powder coating component A and a second powder coating component B which are dry-mixed into a whole and have different curing speeds. The raw materials of the first powder coating component A include a first polyester resin and a curing agent capable of undergoing a curing reaction with the first polyester resin; raw materials of the second powder coating component B include a second polyester resin and an acrylic resin containing epoxy groups, and the acrylic resin is capable of undergoing a curing reaction with the second polyester resin; an acid value of the first polyester resin is not less than 15, and an acid value of the second polyester resin is not less than 15.

IPC Classes  ?

• C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins

Abstract

Disclosed are an electron beam curable copolymer resin and a preparation method therefor, and a powder coating composition. An epoxy functional methacrylate compound and a polyester resin are used as synthetic raw materials, and a copolymer resin having a carbon-carbon double bond is formed by the reaction of an epoxy group in the epoxy functional methacrylate compound and carboxyl in the polyester resin. The preparation route of the present invention is simple and reliable, the raw materials are simple and readily available, and the obtained copolymer resin has a stable carbon-carbon double bond with a relatively high content, which can effectively promote the development process of the batch application of EB curable powder coating products.

IPC Classes  ?

• C08G 63/91 - Polymers modified by chemical after-treatment
• C08L 67/07 - Unsaturated polyesters having terminal carbon-to-carbon unsaturated bonds
• C09D 167/07 - Unsaturated polyesters having carbon-to-carbon unsaturation having terminal carbon-to-carbon unsaturated bonds

Abstract

Disclosed are an extinction ultralow-temperature curing powder coating composition and a coating layer thereof. The composition comprises at least a high-acid-value polyester resin with an acid value of not less than 60 mgKOH/g and a GMA acrylic resin with an epoxy equivalent of not more than 600 g/eq. The high-acid-value polyester resin and the GMA acrylic resin undergo a cross-linking curing reaction at a temperature of not higher than 125ºC for not longer than 30 minutes to form a cured coating film, and the cured coating film has a gloss range of 2-20º in a 60º light source test. In the present invention, curing can be completed at a temperature of not higher than 125ºC within not longer than 30 minutes, and the cured coating film thereof has a gloss range of 2-20º in a 60º light source test at the same time; in addition, the cured coating film has a good weather resistance and can be applied to indoor and outdoor fields.

IPC Classes  ?

• C09D 5/03 - Powdery paints
• C09D 5/46 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for flame-sprayingCoating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes for electrostatic or whirl-sintering coating
• B05D 1/06 - Applying particulate materials
• B05D 7/16 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
• C09D 133/00 - 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 thereofCoating compositions based on derivatives of such polymers
• C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
• C08L 67/06 - Unsaturated polyesters
• C08F 220/00 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof
• C08G 63/00 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

Abstract

Disclosed is a leveling powder coating composition and a coating layer thereof. The leveling powder coating composition comprises a polyester resin having a high acid value and an acrylic resin carrying an epoxy group, which are used for performing a crosslinking curing reaction. The polyester resin having a high acid value has a viscosity range of 500-2000 mPa.s at a temperature of 200°C, and the acid value thereof is not less than 65 mgKOH/g. In the present invention, crosslinking curing is completed under the conditions in which the curing temperature is not higher than 140℃ and the curing time does not exceed 10 minutes. Meanwhile, a curing coating film having a leveling effect is obtained, in which the PCI leveling class of the curing coating film is not less than class 6.

IPC Classes  ?

• C09D 5/03 - Powdery paints
• C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
• C09D 133/04 - Homopolymers or copolymers of esters

Abstract

Disclosed is a powdery primer-and-intermediate-in-one coating for wheel hub use, the coating comprising a matrix powdery coating and an effect powder coating that are mixed as a whole, wherein the matrix powdery coating comprises a polyester resin having an acid value of not greater than 60 mgKOH/g and a hydroxyalkylamide used for curing the polyester resin, and the effect powder coating comprises an effect pigment, and at least part of the effect pigment is coated with a transparent powdery coating. The present invention further relates to a primer-and-intermediate-in-one coating layer regarding the application of the powdery primer-and-intermediate-in-one coating for wheel hub use and to an automobile wheel hub. The powdery primer-and-intermediate-in-one coating for wheel hub use is sprayed on a wheel hub and subjected to a curing molding process to obtain a primer-and-intermediate-in-one coating layer, and the primer-and-intermediate-in-one coating layer is sprayed with a curing transparent powder coating layer to obtain a glazing transparent coating layer. The present invention directly replaces a double-coating solution regarding primer coating combined with painting in the prior art by proposing an innovative mono-coating-layer solution regarding curing and molding a powdery coating. The present invention achieves a good surface coating decorative effect while satisfying automobile wheel hub testing standard requirements.

IPC Classes  ?

• C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
• C09D 5/03 - Powdery paints
• C09D 7/63 - Additives non-macromolecular organic
• C09D 7/62 - Additives non-macromolecular inorganic modified by treatment with other compounds

Abstract

A method of cleaning a powder coating production line, the method including: providing a powder coating production line including equipment, an automatic cleaning tool, and a monitoring device; receiving, by the equipment, an instruction of automatic cleaning, and allowing the equipment to enter an automatic cleaning mode; cleaning, by the automatic cleaning tool, the equipment of the powder coating production line; monitoring, according to a preset monitoring condition and by the monitoring device, whether the automatic cleaning is completed; stopping the automatic cleaning when the monitoring device indicates the automatic cleaning has been completed, or continuing the automatic cleaning of the equipment; and turning off the automatic cleaning mode of the equipment.

IPC Classes  ?

• B08B 5/02 - Cleaning by the force of jets, e.g. blowing-out cavities
• B29C 48/27 - CleaningPurgingAvoiding contamination
• B07B 1/55 - Cleaning with fluid jets
• B02C 23/18 - Adding fluid, other than for crushing or disintegrating by fluid energy
• B04C 5/22 - Apparatus in which the axial direction of the vortex is reversed with cleaning means

Abstract

A conductive powder coating material. The conductive powder coating material comprises graphene or graphene oxide and base powder of the powder coating material, wherein the graphene particles or the graphene oxide particles are adhered and compounded to the surfaces of the base powder particles of the powder coating material. Also provided is a conductive coating, which is formed by coating a substrate with the conductive powder coating material and then performing curing molding. This solution achieves excellent electrical conductivity, and thus has high conductive efficiency, low preparation costs, a simple preparation process, and great benefit to mass production, popularization and application.

IPC Classes  ?

• C09D 5/24 - Electrically-conducting paints

Abstract

An encapsulant material for a photovoltaic module. The encapsulant material includes: between 30 and 50 parts by weight of fiber cloth, and between 50 and 70 parts by weight of a polyester powder coating. The polyester powder coating includes a polyester resin and a curing agent. The polyester resin is a polymer of monomers selected from terephthalic acid, m-phthalic acid, neopentyl glycol, adipic acid, ethylene glycol, or a mixture thereof. The curing agent accounts for 2-20 wt. % of the polyester powder coating. The polyester powder coating is evenly distributed on the fiber cloth. A method of preparing the packaging material includes: evenly distributing the polyester powder coating on the fiber cloth using a coating device; and thermally bonding the polyester powder coating and the fiber cloth.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• D06N 3/12 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof

Abstract

A composite packaging material for a photovoltaic assembly, comprising the following raw materials: a fiber cloth woven by a fiber material; and a hybrid thermosetting powder coating, the raw material of the hybrid thermosetting powder coating comprising an acrylic resin, an acrylic resin curing agent, a polyester resin, and a polyester resin curing agent, wherein the hybrid thermosetting powder coating is uniformly applied on the fiber cloth. The service life of the photovoltaic assembly under severe installation environments such as a high temperature and high humidity environment, an outdoor strong ultraviolet light or strong wind environment, and an environment having a high mechanical installation requirement can be effectively ensured. Also disclosed is a method for preparing the composite packaging material for the photovoltaic assembly. The method satisfies the installation requirement for changing the packaging size of a photovoltaic assembly at will to adapt to different buildings and thus further facilitates installation and application of photovoltaic assemblies.

IPC Classes  ?

• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

An encapsulant material for a photovoltaic module. The encapsulant material includes: between 30 and 50 parts by weight of fiber cloth and between 50 and 70 parts by weight of acrylic powder coating. The fiber cloth is made of fiber material. The acrylic powder coating includes an acrylic resin, a curing agent, and an additive. The acrylic powder coating is uniformly coated on the fiber cloth. A method of preparing the encapsulant material includes: uniformly coating the acrylic powder coating on the fiber cloth, thermally bonding the acrylic powder coating and the fiber cloth using pressure and heat, and piecewise cutting the thermally bonded acrylic powder coating and the fiber cloth.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• D06N 3/04 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
• D06M 15/263 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acidsSalts or esters thereof

Abstract

An automatic cleaning method and an automatic cleaning system utilized in a powder coating production line. The automatic cleaning method comprises: A) upon equipment of a powder coating production line receiving an automatic cleaning request, starting an automatic cleaning mode; B) automatically cleaning, using an automatic cleaning tool, the equipment of the powder coating production line; C) monitoring, by a monitoring device, and according to a preset monitoring condition, whether Step B) is completed; D) if completion of Step B) is detected in Step C), determining that the cleaning task of the automatic cleaning tool is completed; and E) disabling the automatic cleaning mode so as to complete automatic cleaning. The method is utilized to eliminate the potential safety hazard in a powder coating production line in a manual cleaning process, and reduce a manual cleaning time period without causing damages to the equipment of the powder coating production line, ensuring the service life of the equipment, and ensuring, by monitoring the cleaning process, quality of automatic cleaning.

IPC Classes  ?

• B08B 5/02 - Cleaning by the force of jets, e.g. blowing-out cavities
• B29C 47/08 - Component parts, details or accessories; Auxiliary operations
• B02C 23/18 - Adding fluid, other than for crushing or disintegrating by fluid energy
• B04C 9/00 - Combinations with other devices, e.g. fans

Abstract

Disclosed is a packaging material for a photovoltaic module, comprising the following raw materials in parts by weight: 30-50 parts of fiber fabric woven by a fiber material; and 50-70 parts of super-weather-resistance polyester powder coating comprising a super-weather-resistance polyester resin and a curing agent. The fiber fabric is uniformly coated with super-weather-resistance polyester powder coating. The present invention is low in manufacturing cost. Moreover, while meeting the prerequisites of resistance to ultraviolet, aging, impact, and fire which are technical standard requirements of the photovoltaic industry, the present invention efficiently realizes lightweight of the packaging material for a photovoltaic module, makes installation more convenient, reduces the installation cost, and thus is very suitable for large-scale promotion and application in the photovoltaic field. Also disclosed is a method for preparing the packaging material for the photovoltaic module. The method meets the installation requirements for changing the packaging size of a photovoltaic module at will to adapt to different buildings and thus further facilitates installation and application of photovoltaic modules.

IPC Classes  ?

• D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
• D06N 3/12 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof

Abstract

Disclosed is a packaging material for a photovoltaic module, comprising the following raw materials in parts by weight: 30-50 parts of fiber fabric woven by a fiber material; and 50-70 parts of acrylic powder coating comprising an acrylic resin and a curing agent. The fiber fabric is uniformly coated with the acrylic powder coating. The present invention is low in manufacturing cost. Moreover, while meeting the prerequisites of resistance to ultraviolet radiation, aging, impact, and fire which are technical standard requirements of the photovoltaic industry, the present invention efficiently provides a lightweight packaging material for a photovoltaic module, makes installation more convenient, reduces the installation cost, and thus is very suitable for large-scale promotion and application in the photovoltaic field. Also disclosed is a method for preparing the packaging material for the photovoltaic module. The method meets the installation requirements for changing the packaging size of a photovoltaic module at will to adapt to different buildings and thus further facilitates installation and application of photovoltaic modules.

IPC Classes  ?

• H01L 31/048 - Encapsulation of modules
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof