WO2022134099A1 - High-adsorption-force coating composition - Google Patents

High-adsorption-force coating composition Download PDF

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Publication number
WO2022134099A1
WO2022134099A1 PCT/CN2020/139692 CN2020139692W WO2022134099A1 WO 2022134099 A1 WO2022134099 A1 WO 2022134099A1 CN 2020139692 W CN2020139692 W CN 2020139692W WO 2022134099 A1 WO2022134099 A1 WO 2022134099A1
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Prior art keywords
parts
coating composition
coating
adsorption
weight
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PCT/CN2020/139692
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French (fr)
Chinese (zh)
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黄丽梅
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黄丽梅
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Priority to PCT/CN2020/139692 priority Critical patent/WO2022134099A1/en
Publication of WO2022134099A1 publication Critical patent/WO2022134099A1/en

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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
    • C09D129/00—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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C09D129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • 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
    • C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides

Definitions

  • the invention relates to the technical field of electronic component protection, in particular to a high-adsorption coating composition applied to electronic components.
  • Electronic components are components of electronic components and electrical small machines and instruments. They are often composed of several parts and can be used in similar products; often refer to certain parts of electrical appliances, radios, instruments and other industries, such as capacitors, transistors , hairspring, spring and other sub-devices. Common ones are diodes.
  • the amount of back edge of the existing low melting point co-fired laminated chip electronic components that is, the distance between the inner electrode and the edge of the product, is getting smaller and smaller.
  • the internal electrodes Due to the limitation of the processing accuracy of the production equipment, the internal electrodes are exposed in most products, and a protective layer needs to be coated on the surface of the products to cover the exposed internal electrodes.
  • the technical scheme of the present invention is: a high-adsorption coating composition, which is characterized in that it includes the following components in parts by weight: including the following components in parts by weight: polyester acrylate 19-32, pentaerythritol triacrylate 8-17, transition metal carbene complex 7-18, azobisisobutyronitrile 5-11, polyvinyl alcohol 13-29, dispersant 7-12, thickener 5- 9.
  • the bactericide includes the following components in parts by weight: alfalfa extract 31-45, polyvinylpyrrolidone 13-27, and P. chinensis leaf extract 39-48.
  • alfalfa (Medicago sativa) is a perennial herb with long, multi-branched taproots, often erect stems, almost glabrous, and a plant height of 30-100 cm. It is mainly distributed in Qinghai, Xinjiang, Ningxia, Gansu and Inner Mongolia in my country. Rich in nutritional value, the crude protein content is usually about 22%, and it contains more than 20 kinds of amino acids. Alfalfa flavonoids are quite rich. According to reports, there are more than 80 kinds of flavonoids contained in Alfalfa plants, with various structures and varieties.
  • Flavonoids can scavenge free radicals, effectively inhibit the oxidation of epinephrine, reduce the concentration of low-density lipoprotein (LDL) and the concentration of peroxides; they can also reduce the morbidity and mortality of myocardial infarction and atherosclerosis.
  • LDL low-density lipoprotein
  • the preparation method of the P. chinensis leaf extract is as follows: at room temperature, the dried P. chinensis leaves (1000.0 g) are cold-soaked and extracted with 1500 mL of anhydrous methanol for 2.5 d, and the The extract was extracted, and the extract was concentrated under reduced pressure until no solvent was evaporated to obtain methanol extract.
  • the methanol extract was first dissolved in distilled water, and then the "liquid-liquid extraction method" was used to extract three times with petroleum ether, then three times with chloroform, and finally three times with ethyl acetate, respectively, using a rotary evaporator to reduce pressure. Concentrate until no solvent is evaporated, and then place it in a fume hood to dry it with nitrogen.
  • the P. chinensis leaf extract of the present invention has excellent bacteriostatic activity, and has a bacteriostatic rate of 70% or more for common bacteria.
  • polyvinylpyrrolidone is industrially used as a foamed polystyrene auxiliary, a gelling agent, a stabilizer, a fiber treatment agent, a paper processing auxiliary, an adhesive and a thickener for suspension polymerization.
  • Polyvinylpyrrolidone PVP and its copolymer CAP are important raw materials for cosmetics and are mainly used in hair care agents.
  • the film formed on the hair is elastic and shiny, with excellent combing performance and no dust.
  • the resins of different specifications can meet the Various relative humidity and climatic conditions, so it is an indispensable raw material for styling hair cream, hair spray and mousse.
  • It can also be used as a skin care moisturizing agent and a grease base for cosmetics as a dispersant for hair dyeing, foam stabilizer, and can improve the consistency of shampoo.
  • it can also be used as a disinfectant for medical, aquaculture and animal husbandry. For disinfection of skin and mucous membranes.
  • the bactericide of the present invention can achieve excellent bacteriostatic effect through the synergistic effect of alfalfa extract and P. chinensis leaf extract in polyvinylpyrrolidone.
  • the bactericide of the present invention is mixed into silicon carbide hollow microspheres and nano- ⁇ molecular sieves to form a long-lasting antibacterial layer on the surface of the coating.
  • the dispersing agent is one of sodium lauryl sulfate, methyl amyl alcohol, polyacrylamide, gum gum, and fatty acid polyethylene glycol ester.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the preparation method of the coating of the present invention is as follows: S1. Mix polyester acrylate, pentaerythritol triacrylate, transition metal carbene complex, azobisisobutyronitrile, polyvinyl alcohol, dispersant, thickener, dispersant Foaming agent, pH adjuster and distilled water are dissolved and shaken up, and the acrylic monomers are all freshly distilled before use; the shaken solution is heated to 40-50°C, and stirred at 60r/min for 60-90min to obtain a mixed solution; S2 . Mix the silicon carbide hollow microspheres, nano- ⁇ molecular sieves with the bactericide; S3. Mix the components in S1 and S2 and the remaining components of the coating according to the mass fraction, and disperse 20- 40min.
  • the transition metal carbene complex is uniquely added to the formula, and the active group in it causes the prepared coating composition to undergo a cross-linking reaction to form a three-dimensional network structure. , to increase the adhesion of the paint.
  • the combination of polyester acrylate and pentaerythritol triacrylate can effectively enhance its good heat resistance and ductility.
  • the transition metal carbene complex can be realized by any of the prior art.
  • the invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage crater, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial properties and resistance to It has good combustion performance and good salt spray resistance, which is suitable for large-scale promotion and use.
  • the coating method for the surface protection coating of electronic components includes coating with an XY horizontal reciprocating coating machine and a small-caliber spray gun, and sintering the coating at high temperature.
  • the coating is a multi-layer coating with at least 2 coatings, correspondingly forming at least 2 layers of multi-layer coating.
  • the uniformity of the thickness is generally good by applying the coating once, and the coating materials with different weight ratios of filler molecular sieve and ceramic powder are used for each coating to increase the bonding force between the coating and the product magnet, and the coating Covering and protecting the product.
  • the firing temperature of the high temperature sintering is 700°C-900°C.
  • the firing temperature of the high temperature sintering is 800°C.
  • the invention absorbs the advantages of the prior art, and after the external electrodes of electronic components are fired, the outer electrodes of the electronic components are mechanically coated on the surface of the product, and fired at a high temperature, the coating and the product are firmly combined without cracking, and can perfectly cover the exposed product. Electrodes; at the same time, the high-adsorption coating composition also has functionality, which further improves the service life of the product.
  • Embodiment 1 a kind of high adsorption force coating composition, is characterized in that, comprises the component of following parts by weight: comprises the component of following parts by weight: polyester acrylate 19, pentaerythritol triacrylate 8, transition metal carbene Complex 7, Azobisisobutyronitrile 5, Polyvinyl Alcohol 13, Dispersant 7, Thickener 5, Bactericide 31, Defoamer 4, pH Adjuster 1, Silicon Carbide Hollow Microspheres 42, Nano SAPO -31 molecular sieve 31, distilled water 17.
  • the bactericide includes the following components in parts by weight: alfalfa extract 31, polyvinylpyrrolidone 13, and P. chinensis leaf extract 39.
  • alfalfa (Medicago sativa) is a perennial herb with long, multi-branched taproots, often erect stems, almost glabrous, and a plant height of 30-100 cm. It is mainly distributed in Qinghai, Xinjiang, Ningxia, Gansu and Inner Mongolia in my country. Rich in nutritional value, the crude protein content is usually about 22%, and it contains more than 20 kinds of amino acids. Alfalfa flavonoids are quite rich. According to reports, there are more than 80 kinds of flavonoids contained in Alfalfa plants, with various structures and varieties.
  • Flavonoids can scavenge free radicals, effectively inhibit the oxidation of epinephrine, reduce the concentration of low-density lipoprotein (LDL) and the concentration of peroxides; they can also reduce the morbidity and mortality of myocardial infarction and atherosclerosis.
  • LDL low-density lipoprotein
  • the preparation method of the P. chinensis leaf extract is as follows: at room temperature, the dried P. chinensis leaves (1000.0 g) are cold-soaked and extracted with 1500 mL of anhydrous methanol for 2.5 d, and the The extract was extracted, and the extract was concentrated under reduced pressure until no solvent was evaporated to obtain methanol extract.
  • the methanol extract was first dissolved in distilled water, and then the "liquid-liquid extraction method" was used to extract three times with petroleum ether, then three times with chloroform, and finally three times with ethyl acetate, respectively, using a rotary evaporator to reduce pressure. Concentrate until no solvent is evaporated, and then place it in a fume hood to dry it with nitrogen.
  • the P. chinensis leaf extract of the present invention has excellent bacteriostatic activity, and has a bacteriostatic rate of 70% or more for common bacteria.
  • polyvinylpyrrolidone is industrially used as a foamed polystyrene auxiliary, a gelling agent, a stabilizer, a fiber treatment agent, a paper processing auxiliary, an adhesive and a thickener for suspension polymerization.
  • Polyvinylpyrrolidone PVP and its copolymer CAP are important raw materials for cosmetics and are mainly used in hair care agents.
  • the film formed on the hair is elastic and shiny, has excellent combing performance, and does not stick to dust. It uses resins of different specifications to meet the Various relative humidity and climatic conditions, so it is an indispensable raw material for styling hair cream, hair spray and mousse.
  • It can also be used as a skin care moisturizing agent and a grease base for cosmetics as a dispersant for hair dyeing, foam stabilizer, and can improve the consistency of shampoo.
  • it can also be used as a disinfectant for medical, aquaculture and animal husbandry. For disinfection of skin and mucous membranes.
  • the bactericide of the present invention can achieve excellent bacteriostatic effect through the synergistic effect of alfalfa extract and P. chinensis leaf extract in polyvinylpyrrolidone.
  • the bactericide of the present invention is mixed into silicon carbide hollow microspheres and nano- ⁇ molecular sieves to form a long-lasting antibacterial layer on the surface of the coating.
  • the dispersant is sodium lauryl sulfate.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the preparation method of the coating of the present invention is as follows: S1. Mix polyester acrylate, pentaerythritol triacrylate, transition metal carbene complex, azobisisobutyronitrile, polyvinyl alcohol, dispersant, thickener, dispersant Foaming agent, pH adjuster and distilled water are dissolved and shaken up, and the acrylic monomers are all freshly distilled before use; the shaken solution is heated to 40-50°C, and stirred at 60r/min for 60-90min to obtain a mixed solution; S2 . Mix the silicon carbide hollow microspheres, nano- ⁇ molecular sieves with the bactericide; S3. Mix the components in S1 and S2 and the remaining components of the coating according to the mass fraction, and disperse 20- 40min.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • the coating method for the surface protection coating of electronic components includes coating with an XY horizontal reciprocating coating machine and a small-caliber spray gun, and sintering the coating at high temperature.
  • the coating is a multi-layer coating with at least 2 coatings, correspondingly forming at least 2 layers of multi-layer coating.
  • the uniformity of the thickness is generally good by applying the coating once, and the coating materials with different weight ratios of filler molecular sieve and ceramic powder are used for each coating to increase the bonding force between the coating and the product magnet, and the coating Covering and protecting the product.
  • the firing temperature of the high temperature sintering is 700°C-900°C.
  • the firing temperature of the high temperature sintering is 800°C.
  • the present invention absorbs the advantages of the prior art, and after the external electrodes of the electronic components are fired, they are coated on the surface of the product by a mechanical method, and fired at a high temperature, the coating and the product are firmly combined without cracking, It can also perfectly cover the exposed electrodes of the product; at the same time, the high-adsorption coating composition also has functionality, which further improves the service life of the product.
  • Embodiment 2 a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 32, pentaerythritol triacrylate 17, transition metal carbene Complex 18, Azobisisobutyronitrile 11, Polyvinyl Alcohol 29, Dispersant 12, Thickener 9, Bactericide 38, Defoamer 7, pH Adjuster 3, Silicon Carbide Hollow Microspheres 59, Nano SAPO -31 molecular sieve 47, distilled water 26.
  • the bactericide includes the following components in parts by weight: alfalfa extract 45, polyvinylpyrrolidone 27, and A. chinensis leaf extract 48.
  • the dispersant is methyl amyl alcohol.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Embodiment 3 a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 23, pentaerythritol triacrylate 11, transition metal carbene Complex 12, azobisisobutyronitrile 7, polyvinyl alcohol 16, dispersant 9, thickener 6, bactericide 33, defoamer 5, pH adjuster 1.5, silicon carbide hollow microspheres 45, nano SAPO -31 molecular sieve 34, distilled water 19.
  • the bactericide includes the following components in parts by weight: alfalfa extract 34, polyvinylpyrrolidone 17, and P. chinensis leaf extract 41.
  • the dispersant is gul gum.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Embodiment 4 a high adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 25, pentaerythritol triacrylate 13, transition metal carbene Complex 15, azobisisobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, silicon carbide hollow microspheres 52, nano SAPO -31 molecular sieve 38, distilled water 23.
  • the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
  • the dispersant is polyacrylamide.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Embodiment 5 a high adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 30, pentaerythritol triacrylate 15, transition metal carbene Complex 16, Azobisisobutyronitrile 10, Polyvinyl Alcohol 27, Dispersant 10, Thickener 8, Bactericide 37, Defoamer 6, pH Adjuster 2.7, Silicon Carbide Hollow Microspheres 57, Nano SAPO -31 molecular sieve 45, distilled water 24.
  • the bactericide includes the following components in parts by weight: alfalfa extract 42, polyvinylpyrrolidone 25, and A. chinensis leaf extract 46.
  • the dispersing agent is fatty acid polyethylene glycol ester.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Comparative Example 1 a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 25, pentaerythritol triacrylate 13, azodicarbonate Isobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, silicon carbide hollow microspheres 52, nano-SAPO-31 molecular sieve 38, distilled water 23.
  • the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
  • the dispersant is polyacrylamide.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Comparative Example 2 A high-adsorption coating composition, characterized in that it includes the following components in parts by weight: the following components in parts by weight: polyester acrylate 25, pentaerythritol triacrylate 13, transition metal carbene Complex 15, azobisisobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, nano-SAPO-31 molecular sieve 38, distilled water 23 .
  • the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
  • the dispersant is polyacrylamide.
  • the thickener is hydroxyethyl cellulose ether.
  • the defoamer is tributyl phosphate.
  • the pH adjuster is diethanolamine.
  • the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
  • Example 1-5 and Comparative Examples 1-2 were prepared respectively, which were respectively coated on the wooden test piece and the aluminum alloy test piece, and the aluminum alloy test piece was selected from 6063. After the paint is applied, let it stand for 48 hours until the paint is completely cured to form a film before testing. Adhesion test and neutral salt spray test were carried out on the above coatings. The test methods were carried out in accordance with relevant national standards. The test results are as follows.

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  • Engineering & Computer Science (AREA)
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Abstract

A high-adsorption-force coating composition, comprising the following components in parts by weight: 19-32 parts polyester acrylate, 8-17 parts pentaerythritol triacrylate, 7-18 parts of a transition metal carbene complex, 5-11 parts azobisisobutyronitrile, 13-29 parts polyvinyl alcohol, 7-12 parts of a dispersant, 5-9 parts of a thickener, 31-38 parts of a bactericide, 4-7 parts of a defoamer, 1-3 parts of a pH adjuster, 42-59 parts silicon carbide hollow microspheres, 31-47 parts of a nano-SAPO-31 molecular sieve, and 17-26 parts distilled water. Once an external electrode of an electronic component is fired, a coating is applied on the surface of a product by means of mechanical methods. After high-temperature firing, the coating is combined with the product firmly and will not crack, and may also perfectly cover the exposed electrode of the product. Meanwhile, the high-adsorption-force coating composition also has functionality, which further improves the service life of the product.

Description

一种高吸附力涂料组合物A kind of high adsorption coating composition 技术领域technical field
本发明涉及电子元器件防护技术领域，具体涉及一种应用于电子元器件的高吸附力涂料组合物。The invention relates to the technical field of electronic component protection, in particular to a high-adsorption coating composition applied to electronic components.
背景技术Background technique
电子元器件是电子元件和电小型的机器、仪器的组成部分，其本身常由若干零件构成，可以在同类产品中通用;常指电器、无线电、仪表等工业的某些零件，如电容、晶体管、游丝、发条等子器件的总称。常见的有二极管等。Electronic components are components of electronic components and electrical small machines and instruments. They are often composed of several parts and can be used in similar products; often refer to certain parts of electrical appliances, radios, instruments and other industries, such as capacitors, transistors , hairspring, spring and other sub-devices. Common ones are diodes.
因产品特性的要求，现有低熔点共烧叠层片式电子元器件的回边量，即内电极距产品边缘的距离越来越小。由于生产设备加工精度的限制，大多的产品会出现内电极外露现象，需在产品表面涂覆保护层，以遮盖外露的内电极。Due to the requirements of product characteristics, the amount of back edge of the existing low melting point co-fired laminated chip electronic components, that is, the distance between the inner electrode and the edge of the product, is getting smaller and smaller. Due to the limitation of the processing accuracy of the production equipment, the internal electrodes are exposed in most products, and a protective layer needs to be coated on the surface of the products to cover the exposed internal electrodes.
技术问题technical problem
目前表面涂覆的保护用涂层大致有两种，一种是以有机材料为主体，在产品外电极烧成后通过机械方法涂抹在产品表面，经加热烘干、固化后形成，不需经高温烧成，也不能耐受高温，涂层与产品的结合不牢固；另一种涂层需经高温（700-900 ℃）烧成，烧成后涂层与瓷体形成致密的整体结构，但在烧成过程中，因涂层材料对产品瓷体和电极材料的浸润性不一致，以及涂层固有的15%-20%的烧结收缩率与瓷体的热膨胀导致的体积变化率之间的差距，涂层极易开裂。同时现有技术中的电子元器件的涂料不具有抗菌、耐高温、耐盐雾等性能。At present, there are roughly two kinds of protective coatings applied on the surface. One is based on organic materials. After the external electrode of the product is fired, it is mechanically applied to the surface of the product. It is formed after heating, drying and curing. High temperature firing, can not withstand high temperature, the combination of coating and product is not strong; another coating needs to be subjected to high temperature (700-900 ℃) firing, the coating and the porcelain body form a dense overall structure after firing, but during the firing process, due to the inconsistent wettability of the coating material to the product porcelain body and electrode materials, and the inherent 15%- The difference between the sintering shrinkage rate of 20% and the volume change rate caused by the thermal expansion of the porcelain body, the coating is easily cracked. At the same time, the coatings of electronic components in the prior art do not have properties such as antibacterial, high temperature resistance, and salt spray resistance.
技术解决方案technical solutions
本发明的技术方案为：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 19-32、季戊四醇三丙烯酸酯 8-17、过渡金属卡宾络合物7-18、偶氮二异丁腈 5-11、聚乙烯醇 13-29、分散剂 7-12、增稠剂 5-9、杀菌剂 31-38、消泡剂 4-7、pH调节剂 1-3、碳化硅空心微球42-59、纳米SAPO-31分子筛31-47、蒸馏水 17-26。The technical scheme of the present invention is: a high-adsorption coating composition, which is characterized in that it includes the following components in parts by weight: including the following components in parts by weight: polyester acrylate 19-32, pentaerythritol triacrylate 8-17, transition metal carbene complex 7-18, azobisisobutyronitrile 5-11, polyvinyl alcohol 13-29, dispersant 7-12, thickener 5- 9. Bactericide 31-38, defoamer 4-7, pH adjuster 1-3, silicon carbide hollow microsphere 42-59, nano-SAPO-31 molecular sieve 31-47, distilled water 17-26.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 31-45、聚乙烯吡咯烷酮 13-27、对节白蜡树叶提取物 39-48。Further, the bactericide includes the following components in parts by weight: alfalfa extract 31-45, polyvinylpyrrolidone 13-27, and P. chinensis leaf extract 39-48.
本发明中，采用的采用的紫花苜蓿提取物，紫花苜蓿( Medicago sativa) 为多年生草本植物，其主根较长、多分枝，茎常直立，几乎无毛，株高30- 100 cm，在我国主要分布于青海、新疆、宁夏、甘肃和内蒙古等地。营养价值丰富，粗蛋白含量通常在22%左右，含有20 种以上的氨基酸。苜蓿黄酮类化合物相当丰富，据报道，苜蓿属植物所含的黄酮类化合物有80 多种，且结构多样、种类繁多。黄酮类化合物可以清除自由基，有效抑制肾上腺素的氧化、降低低密度脂蛋白( LDL) 浓度和过氧化物的浓度; 还可以降低心肌梗塞阻死和动脉粥样硬化的发病率及死亡率。In the present invention, the alfalfa extract adopted, alfalfa (Medicago sativa) is a perennial herb with long, multi-branched taproots, often erect stems, almost glabrous, and a plant height of 30-100 cm. It is mainly distributed in Qinghai, Xinjiang, Ningxia, Gansu and Inner Mongolia in my country. Rich in nutritional value, the crude protein content is usually about 22%, and it contains more than 20 kinds of amino acids. Alfalfa flavonoids are quite rich. According to reports, there are more than 80 kinds of flavonoids contained in Alfalfa plants, with various structures and varieties. Flavonoids can scavenge free radicals, effectively inhibit the oxidation of epinephrine, reduce the concentration of low-density lipoprotein (LDL) and the concentration of peroxides; they can also reduce the morbidity and mortality of myocardial infarction and atherosclerosis.
本发明中，所述对节白蜡树叶提取物的制备方法为：在室温下，将阴干的对节白蜡树叶（1000.0g）用1500mL无水甲醇冷浸提取2.5d，充分将对节白蜡树叶中的提取物提取出来，提取液减压浓缩至无溶剂蒸出，得甲醇浸提物。甲醇浸提物先用蒸馏水溶解，然后采用“液－液萃取法”，先用石油醚萃取3次，再用氯仿萃取3次，最后用乙酸乙醋萃取3次，分别用旋转蒸发仪减压浓缩至无溶剂蒸出，然后置于通风橱内氮气吹干备用。水层浓缩后，用无水乙醇溶解浓缩带水3次，然后置于通风橱内氮气吹干备用。特别的，中试或量产时本制备方法等比例放大。本发明的对节白蜡树叶提取物具有优异的抑菌活性，对于常见的细菌具有70%或以上的抑菌率。In the present invention, the preparation method of the P. chinensis leaf extract is as follows: at room temperature, the dried P. chinensis leaves (1000.0 g) are cold-soaked and extracted with 1500 mL of anhydrous methanol for 2.5 d, and the The extract was extracted, and the extract was concentrated under reduced pressure until no solvent was evaporated to obtain methanol extract. The methanol extract was first dissolved in distilled water, and then the "liquid-liquid extraction method" was used to extract three times with petroleum ether, then three times with chloroform, and finally three times with ethyl acetate, respectively, using a rotary evaporator to reduce pressure. Concentrate until no solvent is evaporated, and then place it in a fume hood to dry it with nitrogen. After the aqueous layer was concentrated, the concentrated water was dissolved in absolute ethanol for 3 times, and then placed in a fume hood to dry with nitrogen for use. In particular, the preparation method is scaled up in pilot scale or mass production. The P. chinensis leaf extract of the present invention has excellent bacteriostatic activity, and has a bacteriostatic rate of 70% or more for common bacteria.
本发明中，聚乙烯吡咯烷酮在工业上用作发泡聚苯乙烯助剂，悬浮聚合用的胶凝剂、稳定剂、纤维处理剂、纸加工助剂、胶粘剂、增稠剂。聚乙烯吡咯烷酮PVP及其共聚物CAP是化妆品的重要原料，主要用于发型保持剂，它在头发上形成的薄膜富有弹性和光泽，梳理性能优良，不沾灰尘，采用不同规格的树脂，可满足各种相对湿度气候条件，因此它是定型发乳、发胶、摩丝所不可缺少的原料。还能用于化妆品之护肤滋润剂及脂膏基料染发分散剂、泡沫稳定剂，能改善洗发水的稠度。同时还可以医用、水产养殖、畜牧消毒剂。用于皮肤、粘膜的消毒。In the present invention, polyvinylpyrrolidone is industrially used as a foamed polystyrene auxiliary, a gelling agent, a stabilizer, a fiber treatment agent, a paper processing auxiliary, an adhesive and a thickener for suspension polymerization. Polyvinylpyrrolidone PVP and its copolymer CAP are important raw materials for cosmetics and are mainly used in hair care agents. The film formed on the hair is elastic and shiny, with excellent combing performance and no dust. The resins of different specifications can meet the Various relative humidity and climatic conditions, so it is an indispensable raw material for styling hair cream, hair spray and mousse. It can also be used as a skin care moisturizing agent and a grease base for cosmetics as a dispersant for hair dyeing, foam stabilizer, and can improve the consistency of shampoo. At the same time, it can also be used as a disinfectant for medical, aquaculture and animal husbandry. For disinfection of skin and mucous membranes.
本发明的杀菌剂，通过紫花苜蓿提取物、对节白蜡树叶提取物在聚乙烯吡咯烷酮中的协效作用，能够达到优异的抑菌效果。特别的，本发明的杀菌剂混进入到碳化硅空心微球、纳米β分子筛中，在涂料表面形成长效的抑菌层。The bactericide of the present invention can achieve excellent bacteriostatic effect through the synergistic effect of alfalfa extract and P. chinensis leaf extract in polyvinylpyrrolidone. In particular, the bactericide of the present invention is mixed into silicon carbide hollow microspheres and nano-β molecular sieves to form a long-lasting antibacterial layer on the surface of the coating.
进一步的，所述分散剂为十二烷基硫酸钠、甲基戊醇、聚丙烯酰胺、古尔胶、脂肪酸聚乙二醇酯中的一种。Further, the dispersing agent is one of sodium lauryl sulfate, methyl amyl alcohol, polyacrylamide, gum gum, and fatty acid polyethylene glycol ester.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
优选的，本发明涂料的制备方法为：S1.将聚酯丙烯酸酯、季戊四醇三丙烯酸酯、过渡金属卡宾络合物、偶氮二异丁腈、聚乙烯醇、分散剂、增稠剂、消泡剂、pH调节剂、蒸馏水溶解后摇匀，其中丙烯酸单体均新蒸后使用；将摇匀后溶液加热到40-50℃，并以60r/min搅拌60-90min，获得混合溶液；S2.将碳化硅空心微球、纳米β分子筛与杀菌剂混合；S3.将S1和S2中的组分以及涂料的其余组分按照质量份数混合，以4000-5500r/min的分散速度分散20-40min。Preferably, the preparation method of the coating of the present invention is as follows: S1. Mix polyester acrylate, pentaerythritol triacrylate, transition metal carbene complex, azobisisobutyronitrile, polyvinyl alcohol, dispersant, thickener, dispersant Foaming agent, pH adjuster and distilled water are dissolved and shaken up, and the acrylic monomers are all freshly distilled before use; the shaken solution is heated to 40-50°C, and stirred at 60r/min for 60-90min to obtain a mixed solution; S2 . Mix the silicon carbide hollow microspheres, nano-β molecular sieves with the bactericide; S3. Mix the components in S1 and S2 and the remaining components of the coating according to the mass fraction, and disperse 20- 40min.
通过本发明中各组分的协效复配，独创性的在配方中加入了过渡金属卡宾络合物，其中的活性基团，使得制得的涂料组合物发生交联反应，形成立体网络结构，增加涂料的附着力。同时，本发明中采用聚酯丙烯酸酯与季戊四醇三丙烯酸酯结合的方式，可以有效增强其耐热性能好和延展性。特别的，所述过渡金属卡宾络合物可通过任一现有技术实现。Through the synergistic compounding of each component in the present invention, the transition metal carbene complex is uniquely added to the formula, and the active group in it causes the prepared coating composition to undergo a cross-linking reaction to form a three-dimensional network structure. , to increase the adhesion of the paint. Meanwhile, in the present invention, the combination of polyester acrylate and pentaerythritol triacrylate can effectively enhance its good heat resistance and ductility. In particular, the transition metal carbene complex can be realized by any of the prior art.
本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。The invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage crater, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial properties and resistance to It has good combustion performance and good salt spray resistance, which is suitable for large-scale promotion and use.
本发明高吸附力涂料组合物的涂覆方法技术问题通过以下技术方案予以解决。The technical problem of the coating method of the high-adsorption coating composition of the present invention is solved by the following technical solutions.
优选的，电子元器件表面保护涂料的涂覆方法，包括采用XY水平往复式涂覆机和小口径的喷枪涂覆，以及对涂层进行高温烧结。Preferably, the coating method for the surface protection coating of electronic components includes coating with an XY horizontal reciprocating coating machine and a small-caliber spray gun, and sintering the coating at high temperature.
这种叠层片式电子元器件表面保护涂料的涂覆方法的特点是：所述涂覆是采用至少2 次涂覆的多层涂覆，相应形成至少2 层的多层涂层，通过多次涂抹制作涂层，其厚度的均匀性一般较好，且每次涂覆采用填充料分子筛与陶瓷粉的重量比不同的涂层材料，以增加涂层与产品磁体的结合力，以及涂层对产品的遮盖、保护效果。The characteristics of the coating method for the surface protective coating for laminated chip electronic components are: the coating is a multi-layer coating with at least 2 coatings, correspondingly forming at least 2 layers of multi-layer coating. The uniformity of the thickness is generally good by applying the coating once, and the coating materials with different weight ratios of filler molecular sieve and ceramic powder are used for each coating to increase the bonding force between the coating and the product magnet, and the coating Covering and protecting the product.
优选的，所述高温烧结的烧成温度是700℃-900℃。Preferably, the firing temperature of the high temperature sintering is 700°C-900°C.
优选的，所述高温烧结的烧成温度是800 ℃。Preferably, the firing temperature of the high temperature sintering is 800°C.
有益效果beneficial effect
本发明吸取了现有技术的优点，在电子元器件外电极烧成后通过机械方法涂抹在产品表面，经高温烧成，涂料与产品的结合牢固，不会开裂，又能完美遮盖住产品外露电极；同时高吸附力涂料组合物还具有功能性，进一步提高产品的使用寿命。The invention absorbs the advantages of the prior art, and after the external electrodes of electronic components are fired, the outer electrodes of the electronic components are mechanically coated on the surface of the product, and fired at a high temperature, the coating and the product are firmly combined without cracking, and can perfectly cover the exposed product. Electrodes; at the same time, the high-adsorption coating composition also has functionality, which further improves the service life of the product.
本发明的实施方式Embodiments of the present invention
下面将结合实施例对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
实施例1:一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 19、季戊四醇三丙烯酸酯 8、过渡金属卡宾络合物7、偶氮二异丁腈 5、聚乙烯醇 13、分散剂 7、增稠剂 5、杀菌剂 31、消泡剂 4、pH调节剂 1、碳化硅空心微球42、纳米SAPO-31分子筛31、蒸馏水 17。Embodiment 1: a kind of high adsorption force coating composition, is characterized in that, comprises the component of following parts by weight: comprises the component of following parts by weight: polyester acrylate 19, pentaerythritol triacrylate 8, transition metal carbene Complex 7, Azobisisobutyronitrile 5, Polyvinyl Alcohol 13, Dispersant 7, Thickener 5, Bactericide 31, Defoamer 4, pH Adjuster 1, Silicon Carbide Hollow Microspheres 42, Nano SAPO -31 molecular sieve 31, distilled water 17.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 31、聚乙烯吡咯烷酮 13、对节白蜡树叶提取物 39。Further, the bactericide includes the following components in parts by weight: alfalfa extract 31, polyvinylpyrrolidone 13, and P. chinensis leaf extract 39.
本发明中，采用的采用的紫花苜蓿提取物，紫花苜蓿( Medicago sativa) 为多年生草本植物，其主根较长、多分枝，茎常直立，几乎无毛，株高30- 100 cm，在我国主要分布于青海、新疆、宁夏、甘肃和内蒙古等地。营养价值丰富，粗蛋白含量通常在22%左右，含有20 种以上的氨基酸。苜蓿黄酮类化合物相当丰富，据报道，苜蓿属植物所含的黄酮类化合物有80 多种，且结构多样、种类繁多。黄酮类化合物可以清除自由基，有效抑制肾上腺素的氧化、降低低密度脂蛋白( LDL) 浓度和过氧化物的浓度; 还可以降低心肌梗塞阻死和动脉粥样硬化的发病率及死亡率。In the present invention, the alfalfa extract adopted, alfalfa (Medicago sativa) is a perennial herb with long, multi-branched taproots, often erect stems, almost glabrous, and a plant height of 30-100 cm. It is mainly distributed in Qinghai, Xinjiang, Ningxia, Gansu and Inner Mongolia in my country. Rich in nutritional value, the crude protein content is usually about 22%, and it contains more than 20 kinds of amino acids. Alfalfa flavonoids are quite rich. According to reports, there are more than 80 kinds of flavonoids contained in Alfalfa plants, with various structures and varieties. Flavonoids can scavenge free radicals, effectively inhibit the oxidation of epinephrine, reduce the concentration of low-density lipoprotein (LDL) and the concentration of peroxides; they can also reduce the morbidity and mortality of myocardial infarction and atherosclerosis.
本发明中，所述对节白蜡树叶提取物的制备方法为：在室温下，将阴干的对节白蜡树叶（1000.0g）用1500mL无水甲醇冷浸提取2.5d，充分将对节白蜡树叶中的提取物提取出来，提取液减压浓缩至无溶剂蒸出，得甲醇浸提物。甲醇浸提物先用蒸馏水溶解，然后采用“液－液萃取法”，先用石油醚萃取3次，再用氯仿萃取3次，最后用乙酸乙醋萃取3次，分别用旋转蒸发仪减压浓缩至无溶剂蒸出，然后置于通风橱内氮气吹干备用。水层浓缩后，用无水乙醇溶解浓缩带水3次，然后置于通风橱内氮气吹干备用。特别的，中试或量产时本制备方法等比例放大。本发明的对节白蜡树叶提取物具有优异的抑菌活性，对于常见的细菌具有70%或以上的抑菌率。In the present invention, the preparation method of the P. chinensis leaf extract is as follows: at room temperature, the dried P. chinensis leaves (1000.0 g) are cold-soaked and extracted with 1500 mL of anhydrous methanol for 2.5 d, and the The extract was extracted, and the extract was concentrated under reduced pressure until no solvent was evaporated to obtain methanol extract. The methanol extract was first dissolved in distilled water, and then the "liquid-liquid extraction method" was used to extract three times with petroleum ether, then three times with chloroform, and finally three times with ethyl acetate, respectively, using a rotary evaporator to reduce pressure. Concentrate until no solvent is evaporated, and then place it in a fume hood to dry it with nitrogen. After the aqueous layer was concentrated, the concentrated water was dissolved in absolute ethanol for 3 times, and then placed in a fume hood to dry with nitrogen for use. In particular, the preparation method is scaled up in pilot scale or mass production. The P. chinensis leaf extract of the present invention has excellent bacteriostatic activity, and has a bacteriostatic rate of 70% or more for common bacteria.
本发明中，聚乙烯吡咯烷酮在工业上用作发泡聚苯乙烯助剂，悬浮聚合用的胶凝剂、稳定剂、纤维处理剂、纸加工助剂、胶粘剂、增稠剂。聚乙烯吡咯烷酮PVP及其共聚物CAP是化妆品的重要原料，主要用于发型保持剂，它在头发上形成的薄膜富有弹性和光泽，梳理性能优良，不沾灰尘，采用不同规格的树脂，可满足各种相对湿度气候条件，因此它是定型发乳、发胶、摩丝所不可缺少的原料。还能用于化妆品之护肤滋润剂及脂膏基料染发分散剂、泡沫稳定剂，能改善洗发水的稠度。同时还可以医用、水产养殖、畜牧消毒剂。用于皮肤、粘膜的消毒。In the present invention, polyvinylpyrrolidone is industrially used as a foamed polystyrene auxiliary, a gelling agent, a stabilizer, a fiber treatment agent, a paper processing auxiliary, an adhesive and a thickener for suspension polymerization. Polyvinylpyrrolidone PVP and its copolymer CAP are important raw materials for cosmetics and are mainly used in hair care agents. The film formed on the hair is elastic and shiny, has excellent combing performance, and does not stick to dust. It uses resins of different specifications to meet the Various relative humidity and climatic conditions, so it is an indispensable raw material for styling hair cream, hair spray and mousse. It can also be used as a skin care moisturizing agent and a grease base for cosmetics as a dispersant for hair dyeing, foam stabilizer, and can improve the consistency of shampoo. At the same time, it can also be used as a disinfectant for medical, aquaculture and animal husbandry. For disinfection of skin and mucous membranes.
本发明的杀菌剂，通过紫花苜蓿提取物、对节白蜡树叶提取物在聚乙烯吡咯烷酮中的协效作用，能够达到优异的抑菌效果。特别的，本发明的杀菌剂混进入到碳化硅空心微球、纳米β分子筛中，在涂料表面形成长效的抑菌层。The bactericide of the present invention can achieve excellent bacteriostatic effect through the synergistic effect of alfalfa extract and P. chinensis leaf extract in polyvinylpyrrolidone. In particular, the bactericide of the present invention is mixed into silicon carbide hollow microspheres and nano-β molecular sieves to form a long-lasting antibacterial layer on the surface of the coating.
进一步的，所述分散剂为十二烷基硫酸钠。Further, the dispersant is sodium lauryl sulfate.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
优选的，本发明涂料的制备方法为：S1.将聚酯丙烯酸酯、季戊四醇三丙烯酸酯、过渡金属卡宾络合物、偶氮二异丁腈、聚乙烯醇、分散剂、增稠剂、消泡剂、pH调节剂、蒸馏水溶解后摇匀，其中丙烯酸单体均新蒸后使用；将摇匀后溶液加热到40-50℃，并以60r/min搅拌60-90min，获得混合溶液；S2.将碳化硅空心微球、纳米β分子筛与杀菌剂混合；S3.将S1和S2中的组分以及涂料的其余组分按照质量份数混合，以4000-5500r/min的分散速度分散20-40min。Preferably, the preparation method of the coating of the present invention is as follows: S1. Mix polyester acrylate, pentaerythritol triacrylate, transition metal carbene complex, azobisisobutyronitrile, polyvinyl alcohol, dispersant, thickener, dispersant Foaming agent, pH adjuster and distilled water are dissolved and shaken up, and the acrylic monomers are all freshly distilled before use; the shaken solution is heated to 40-50°C, and stirred at 60r/min for 60-90min to obtain a mixed solution; S2 . Mix the silicon carbide hollow microspheres, nano-β molecular sieves with the bactericide; S3. Mix the components in S1 and S2 and the remaining components of the coating according to the mass fraction, and disperse 20- 40min.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
本发明高吸附力涂料组合物的涂覆方法技术问题通过以下技术方案予以解决。The technical problem of the coating method of the high-adsorption coating composition of the present invention is solved by the following technical solutions.
优选的，电子元器件表面保护涂料的涂覆方法，包括采用XY水平往复式涂覆机和小口径的喷枪涂覆，以及对涂层进行高温烧结。Preferably, the coating method for the surface protection coating of electronic components includes coating with an XY horizontal reciprocating coating machine and a small-caliber spray gun, and sintering the coating at high temperature.
这种叠层片式电子元器件表面保护涂料的涂覆方法的特点是：所述涂覆是采用至少2 次涂覆的多层涂覆，相应形成至少2 层的多层涂层，通过多次涂抹制作涂层，其厚度的均匀性一般较好，且每次涂覆采用填充料分子筛与陶瓷粉的重量比不同的涂层材料，以增加涂层与产品磁体的结合力，以及涂层对产品的遮盖、保护效果。The characteristics of the coating method for the surface protective coating for laminated chip electronic components are: the coating is a multi-layer coating with at least 2 coatings, correspondingly forming at least 2 layers of multi-layer coating. The uniformity of the thickness is generally good by applying the coating once, and the coating materials with different weight ratios of filler molecular sieve and ceramic powder are used for each coating to increase the bonding force between the coating and the product magnet, and the coating Covering and protecting the product.
优选的，所述高温烧结的烧成温度是700℃-900℃。Preferably, the firing temperature of the high temperature sintering is 700°C-900°C.
优选的，所述高温烧结的烧成温度是800 ℃。Preferably, the firing temperature of the high temperature sintering is 800°C.
本发明的有益效果在于：本发明吸取了现有技术的优点，在电子元器件外电极烧成后通过机械方法涂抹在产品表面，经高温烧成，涂料与产品的结合牢固，不会开裂，又能完美遮盖住产品外露电极；同时高吸附力涂料组合物还具有功能性，进一步提高产品的使用寿命。The beneficial effects of the present invention are as follows: the present invention absorbs the advantages of the prior art, and after the external electrodes of the electronic components are fired, they are coated on the surface of the product by a mechanical method, and fired at a high temperature, the coating and the product are firmly combined without cracking, It can also perfectly cover the exposed electrodes of the product; at the same time, the high-adsorption coating composition also has functionality, which further improves the service life of the product.
实施例2：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 32、季戊四醇三丙烯酸酯 17、过渡金属卡宾络合物18、偶氮二异丁腈 11、聚乙烯醇 29、分散剂 12、增稠剂 9、杀菌剂 38、消泡剂 7、pH调节剂 3、碳化硅空心微球59、纳米SAPO-31分子筛47、蒸馏水 26。Embodiment 2: a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 32, pentaerythritol triacrylate 17, transition metal carbene Complex 18, Azobisisobutyronitrile 11, Polyvinyl Alcohol 29, Dispersant 12, Thickener 9, Bactericide 38, Defoamer 7, pH Adjuster 3, Silicon Carbide Hollow Microspheres 59, Nano SAPO -31 molecular sieve 47, distilled water 26.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 45、聚乙烯吡咯烷酮 27、对节白蜡树叶提取物 48。Further, the bactericide includes the following components in parts by weight: alfalfa extract 45, polyvinylpyrrolidone 27, and A. chinensis leaf extract 48.
进一步的，所述分散剂为甲基戊醇。Further, the dispersant is methyl amyl alcohol.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
实施例3：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 23、季戊四醇三丙烯酸酯 11、过渡金属卡宾络合物12、偶氮二异丁腈 7、聚乙烯醇 16、分散剂 9、增稠剂 6、杀菌剂 33、消泡剂 5、pH调节剂 1.5、碳化硅空心微球45、纳米SAPO-31分子筛34、蒸馏水 19。Embodiment 3: a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 23, pentaerythritol triacrylate 11, transition metal carbene Complex 12, azobisisobutyronitrile 7, polyvinyl alcohol 16, dispersant 9, thickener 6, bactericide 33, defoamer 5, pH adjuster 1.5, silicon carbide hollow microspheres 45, nano SAPO -31 molecular sieve 34, distilled water 19.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 34、聚乙烯吡咯烷酮 17、对节白蜡树叶提取物 41。Further, the bactericide includes the following components in parts by weight: alfalfa extract 34, polyvinylpyrrolidone 17, and P. chinensis leaf extract 41.
进一步的，所述分散剂为古尔胶。Further, the dispersant is gul gum.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
实施例4：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 25、季戊四醇三丙烯酸酯 13、过渡金属卡宾络合物15、偶氮二异丁腈 8、聚乙烯醇 23、分散剂 10、增稠剂 7、杀菌剂 36、消泡剂 6、pH调节剂 2、碳化硅空心微球52、纳米SAPO-31分子筛38、蒸馏水 23。Embodiment 4: a high adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 25, pentaerythritol triacrylate 13, transition metal carbene Complex 15, azobisisobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, silicon carbide hollow microspheres 52, nano SAPO -31 molecular sieve 38, distilled water 23.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 41、聚乙烯吡咯烷酮 24、对节白蜡树叶提取物 43。Further, the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
进一步的，所述分散剂为聚丙烯酰胺。Further, the dispersant is polyacrylamide.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
实施例5：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 30、季戊四醇三丙烯酸酯 15、过渡金属卡宾络合物16、偶氮二异丁腈 10、聚乙烯醇 27、分散剂 10、增稠剂 8、杀菌剂 37、消泡剂 6、pH调节剂 2.7、碳化硅空心微球57、纳米SAPO-31分子筛45、蒸馏水 24。Embodiment 5: a high adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 30, pentaerythritol triacrylate 15, transition metal carbene Complex 16, Azobisisobutyronitrile 10, Polyvinyl Alcohol 27, Dispersant 10, Thickener 8, Bactericide 37, Defoamer 6, pH Adjuster 2.7, Silicon Carbide Hollow Microspheres 57, Nano SAPO -31 molecular sieve 45, distilled water 24.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 42、聚乙烯吡咯烷酮 25、对节白蜡树叶提取物 46。Further, the bactericide includes the following components in parts by weight: alfalfa extract 42, polyvinylpyrrolidone 25, and A. chinensis leaf extract 46.
进一步的，所述分散剂为脂肪酸聚乙二醇酯。Further, the dispersing agent is fatty acid polyethylene glycol ester.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
对比例1：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 25、季戊四醇三丙烯酸酯 13、偶氮二异丁腈 8、聚乙烯醇 23、分散剂 10、增稠剂 7、杀菌剂 36、消泡剂 6、pH调节剂 2、碳化硅空心微球52、纳米SAPO-31分子筛38、蒸馏水 23。Comparative Example 1: a high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 25, pentaerythritol triacrylate 13, azodicarbonate Isobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, silicon carbide hollow microspheres 52, nano-SAPO-31 molecular sieve 38, distilled water 23.
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 41、聚乙烯吡咯烷酮 24、对节白蜡树叶提取物 43。Further, the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
进一步的，所述分散剂为聚丙烯酰胺。Further, the dispersant is polyacrylamide.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
对比例2：一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 25、季戊四醇三丙烯酸酯 13、过渡金属卡宾络合物15、偶氮二异丁腈 8、聚乙烯醇 23、分散剂 10、增稠剂 7、杀菌剂 36、消泡剂 6、pH调节剂 2、纳米SAPO-31分子筛38、蒸馏水 23。Comparative Example 2: A high-adsorption coating composition, characterized in that it includes the following components in parts by weight: the following components in parts by weight: polyester acrylate 25, pentaerythritol triacrylate 13, transition metal carbene Complex 15, azobisisobutyronitrile 8, polyvinyl alcohol 23, dispersant 10, thickener 7, bactericide 36, defoamer 6, pH adjuster 2, nano-SAPO-31 molecular sieve 38, distilled water 23 .
进一步的，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 41、聚乙烯吡咯烷酮 24、对节白蜡树叶提取物 43。Further, the bactericide includes the following components in parts by weight: alfalfa extract 41, polyvinylpyrrolidone 24, and ash tree leaf extract 43.
进一步的，所述分散剂为聚丙烯酰胺。Further, the dispersant is polyacrylamide.
进一步的，所述增稠剂为羟乙基纤维素醚。Further, the thickener is hydroxyethyl cellulose ether.
进一步的，所述消泡剂为磷酸三丁酯。Further, the defoamer is tributyl phosphate.
进一步的，所述pH调节剂为二乙醇胺。Further, the pH adjuster is diethanolamine.
通过本发明中各组分的协效复配，本发明能够解决涂料表面张力产生梯度变化，体系黏度增加，其填料分散不均匀，易发生橘皮、缩孔、雾影等现象，具有优异的流平效果；本发明具有优异的抗菌性和阻燃性能，同时耐盐雾能力良好，适用于大规模推广使用。Through the synergistic compounding of each component in the present invention, the present invention can solve the gradient change of the surface tension of the coating, the increase of the system viscosity, the uneven dispersion of the filler, the easy occurrence of orange peel, shrinkage, haze and other phenomena, and has excellent leveling effect; the invention has excellent antibacterial and flame retardant properties, and at the same time has good salt spray resistance, and is suitable for large-scale popularization and use.
涂料性能测试。Coating performance testing.
耐盐雾性能。Salt spray resistance.
将实施例1-5和对比例1-2分别制备获得涂料，分别涂装于木质试片与铝合金试片上，铝合金试片选用6063。涂料涂装后，静置48小时待涂料完全固化成膜后进行测试。对上述涂层进行附着力测试、中性盐雾测试，测试方法按照相关国家标准进行，测试结果如下表。The coatings of Examples 1-5 and Comparative Examples 1-2 were prepared respectively, which were respectively coated on the wooden test piece and the aluminum alloy test piece, and the aluminum alloy test piece was selected from 6063. After the paint is applied, let it stand for 48 hours until the paint is completely cured to form a film before testing. Adhesion test and neutral salt spray test were carried out on the above coatings. The test methods were carried out in accordance with relevant national standards. The test results are as follows.
Figure 319114dest_path_image001
。
Figure 319114dest_path_image001
.
抗菌性能和阻燃性能。Antibacterial properties and flame retardant properties.
根据相关国家标准对实施例1-5和对比例1-2分别制备获得涂料并进行性能测试，结果如下表所示。According to the relevant national standards, the coatings of Examples 1-5 and Comparative Examples 1-2 were prepared and tested respectively, and the results were shown in the following table.
Figure 770955dest_path_image002
。
Figure 770955dest_path_image002
.
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。需注意的是，本发明中所未详细描述的技术特征，均可以通过本领域任一现有技术实现。In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be realized by any prior art in the art.

Claims (6)

  1. 一种高吸附力涂料组合物，其特征在于，包括以下重量份数的组分：包括以下重量份数的组分：聚酯丙烯酸酯 19-32、季戊四醇三丙烯酸酯 8-17、过渡金属卡宾络合物7-18、偶氮二异丁腈 5-11、聚乙烯醇 13-29、分散剂 7-12、增稠剂 5-9、杀菌剂 31-38、消泡剂 4-7、pH调节剂 1-3、碳化硅空心微球42-59、纳米SAPO-31分子筛31-47、蒸馏水 17-26。A high-adsorption coating composition, characterized in that it comprises the following components by weight: the following components by weight: polyester acrylate 19-32, pentaerythritol triacrylate 8-17, transition metal carbene complex 7-18, azobisisobutyronitrile 5-11, polyvinyl alcohol 13-29, dispersant 7-12, thickener 5-9, bactericide 31-38, Defoamer 4-7, pH adjuster 1-3, silicon carbide hollow microspheres 42-59, nano-SAPO-31 molecular sieve 31-47, distilled water 17-26.
  2. 根据权利要求1所述的高吸附力涂料组合物，其特征在于，所述杀菌剂包括以下重量份数的组分：紫花苜蓿提取物 31-45、聚乙烯吡咯烷酮 13-27、对节白蜡树叶提取物 39-48。The high-adsorption coating composition according to claim 1, wherein the bactericide comprises the following components in parts by weight: alfalfa extract 31-45, polyvinylpyrrolidone 13-27, ash leaves Extracts 39-48.
  3. 根据权利要求1所述的高吸附力涂料组合物，其特征在于，所述分散剂为十二烷基硫酸钠、甲基戊醇、聚丙烯酰胺、古尔胶、脂肪酸聚乙二醇酯中的一种。The high-adsorption coating composition according to claim 1, wherein the dispersant is sodium lauryl sulfate, methyl amyl alcohol, polyacrylamide, gum gum, fatty acid polyethylene glycol ester a kind of.
  4. 根据权利要求1所述的高吸附力涂料组合物，其特征在于，所述增稠剂为羟乙基纤维素醚。The high-adsorption coating composition according to claim 1, wherein the thickener is hydroxyethyl cellulose ether.
  5. 根据权利要求1所述的高吸附力涂料组合物，其特征在于，所述消泡剂为磷酸三丁酯。The high-adsorption coating composition according to claim 1, wherein the defoamer is tributyl phosphate.
  6. 根据权利要求1所述的高吸附力涂料组合物，其特征在于，所述pH调节剂为二乙醇胺。The high-adsorption coating composition according to claim 1, wherein the pH adjuster is diethanolamine.
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