CN105733420A - Nanometer attapulgite modified valve coating and preparation method thereof - Google Patents

Nanometer attapulgite modified valve coating and preparation method thereof Download PDF

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Publication number
CN105733420A
CN105733420A CN201610264368.8A CN201610264368A CN105733420A CN 105733420 A CN105733420 A CN 105733420A CN 201610264368 A CN201610264368 A CN 201610264368A CN 105733420 A CN105733420 A CN 105733420A
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China
Prior art keywords
parts
nanometer
nano
modified
attapulgite
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610264368.8A
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Chinese (zh)
Inventor
何颜鹏
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Tongling Bairui Equipment Accessories Co Ltd
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Tongling Bairui Equipment Accessories Co Ltd
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Priority to CN201610264368.8A priority Critical patent/CN105733420A/en
Publication of CN105733420A publication Critical patent/CN105733420A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08Anti-corrosive paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • C09D7/62Additives non-macromolecular inorganic modified by treatment with other compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/65Additives macromolecular
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/70Additives characterised by shape, e.g. fibres, flakes or microspheres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses a nanometer attapulgite modified valve coating and a preparation method thereof. The nanometer attapulgite modified valve coating is prepared from, by weight, 50-60 parts of high hydroxyl polyester resin, 10-15 parts of hydroxy acrylic resin, 1-3 parts of HDI trimer, 2-4 parts of nanometer titania, 3-5 parts of sodium tartrate, 3-5 parts of royal jelly, 1-3 parts of hexamethyldisiloxane, 1-2 parts of sodium carboxymethylcellulose, 1-3 parts of titanate coupling agent, 3-4 parts of paraffin oil, 10-20 parts of nanometer attapulgite, 20-30 parts of nanometer glass fiber, 3-5 parts of modified tree ash, 4-6 parts of coalescing agent, 5-6 parts of ethanediol and 15-20 parts of water. The nanometer attapulgite modified valve coating is strong in adhesive force, nontoxic, resistant to acid and base and good in corrosion resistance, and meanwhile has the sound absorption effect.

Description

Valve coating that a kind of nano-attapulgite is modified and preparation method thereof
Technical field
The present invention relates to technical field of valve manufacturing, particularly relate to the valve coating that a kind of nano-attapulgite is modified And preparation method thereof.
Background technology
Valve is the control parts in fluid delivery system, have cut-off, regulation, water conservancy diversion, voltage stabilizing, shunting or The functions such as overflow pressure relief.Valve is commonly applied to the industrial circles such as oil, chemical industry, metallurgy, used by the preparation of valve Material be often metal material, contact with medium for a long time in valve, by the corrosion of medium with wash away, easily occur Corrosion, the valve latus rectum after corrosion diminishes, and flow resistance increases, and has a strong impact on the service life of medium transmission and valve, Therefore while needing the wearability of raising valve, when being applied in the strong corrosive medias such as acid, alkali, salt, Its resistance to corrosion is also required to improve.For solving this problem, use suitable coating that valve is carried out application to be Conventional method.The most current coating is poor with the binding ability of metallic matrix, and stainless property is not enough, anti- Ageing properties is low.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that the valve painting that a kind of nano-attapulgite is modified Material and preparation method thereof, the paint adhesion of preparation is strong, nontoxic, resistance to acids and bases, corrosion resistance are good, and There is the effect of sound absorption.
To achieve these goals, the present invention adopts the following technical scheme that
The valve coating that a kind of nano-attapulgite is modified, is made up of the raw material of following weight portion: high hydroxyl polyester Resin 50-60 part, Hydroxylated acrylic resin 10-15 part, HDI trimer 1-3 part, nano titanium oxide 2-4 part, sodium tartrate 3-5 part, Lac regis apis 3-5 part, hexamethyl disiloxane 1-3 part, carboxymethyl cellulose Element sodium 1-2 part, titanate coupling agent 1-3 part, paraffin oil 3-4 part, nano-attapulgite 10-20 part, receive Rice glass fibre 20-30 part, modified tree ash 3-5 part, coalescents 4-6 part, ethylene glycol 5-6 part, Water 15-20 part.
Described coalescents is prepared by following methods: ratio is by Colophonium 1-3 part, epoxy soybean oil by weight 4-6 part, glyceryl monostearate 1-2 part, uniform at 150-170 DEG C of melt blending, then temperature is adjusted to 90-100 DEG C, add acrylic acid 3-5 part, the stirring of Silane coupling reagent KH-570 1-2 part 1-2 hour, to obtain final product.
Described modified tree ash is prepared by following methods: first by 10-15% hydrogen peroxide dipping tree ash 1-2 After hour, it is washed with deionized to neutrality, dries, be subsequently adding and be equivalent to tree ash weight 1-2% Nano-sized carbon, the polyisobutylene of 1-2%, the tributyl citrate of 1-2%, 1-2% cross-linking agent TAC, 1-2% two Cyclopentadienyl ferrum, after high speed 3500-3800 rev/min stirs 30-40 minute, ovendry power is broken into nanometer powder, to obtain final product.
The preparation method of the valve coating that described nano-attapulgite is modified, including following preparation process:
(1) by nano titanium oxide in 500-600 DEG C of high-temperature calcination 20-30 minute, it is cooled to room temperature ultrasonic Shaking 10-20 minute, addition Lac regis apis, hexamethyl disiloxane stir, and are warming up to 50-60 DEG C, super Fine lapping 1-2 hour, dries to obtain mixture I;
(2) by high hydroxy polyester resin, Hydroxylated acrylic resin, HDI trimer, sodium tartrate, carboxymethyl Sodium cellulosate, titanate coupling agent, nano-attapulgite, nanometer glass fiber, modified tree ash mixing are all After even under Microwave Frequency stove 2000MHz, power 600W microwave treatment 10-20 minute, obtain material II;
(3) material I, material II and surplus stock are mixed, be heated to 100-120 DEG C of insulated and stirred 10-15 Minute, then cool down,.
Compared with the prior art, beneficial effects of the present invention is as follows:
The auxiliary agent of present invention interpolation and filler, the compatibility is good, and coalescents is high with the compatibility of resin and filler, Strong with the adhesion of metallic matrix, the adhesive force of coating, levelability can be effectively improved, be difficult to peel off, ftracture; By adding nano-attapulgite and modified tree ash, the corrosion resistance of coating can be improved, and have into This is low, the feature of excellent effect;The valve paint adhesion of the present invention is strong, nontoxic, resistance to acids and bases, anticorrosive Performance is good, and has the effect of sound absorption.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments, On the premise of without departing from present inventive concept, within any improvement made all falls within protection scope of the present invention.
Embodiment 1:
The valve coating that a kind of nano-attapulgite is modified, is made up of the raw material of following weight portion: high hydroxyl polyester Resin 52 parts, Hydroxylated acrylic resin 12 parts, HDI trimer 2 parts, nano titanium oxide 3 parts, winestone 5 parts of sodium of acid, Lac regis apis 5 parts, hexamethyl disiloxane 3 parts, sodium carboxymethyl cellulose 1 part, titanate esters are even Connection agent 3 parts, paraffin oil 4 parts, nano-attapulgite 15 parts, nanometer glass fiber 25 parts, modified tree ash 5 parts of cinder, coalescents 5 parts, ethylene glycol 5 parts, 15 parts of water.
Described coalescents is prepared by following methods: ratio is by Colophonium 2 parts, epoxy soybean oil 5 by weight Part, glyceryl monostearate 2 parts, uniform at 160 DEG C of melt blendings, then temperature is adjusted to 100 DEG C, adds Enter 5 parts of acrylic acid, Silane coupling reagent KH-570 2 parts stirs 2 hours, to obtain final product.
Described modified tree ash is prepared by following methods: first by 15% hydrogen peroxide dipping tree ash 2 hours After, be washed with deionized to neutrality, dry, be subsequently adding be equivalent to tree ash weight 2% nano-sized carbon, The polyisobutylene of 2%, the tributyl citrate of 2%, the cross-linking agent TAC of 2%, the ferrocene of 1%, at a high speed 3800 Rev/min stirring 30 minutes after, ovendry power is broken into nanometer powder, to obtain final product.
The preparation method of the valve coating that described nano-attapulgite is modified, including following preparation process:
(1) by nano titanium oxide in 600 DEG C of high-temperature calcinations 25 minutes, it is cooled to room temperature ultrasonic concussion 15 Minute, addition Lac regis apis, hexamethyl disiloxane stir, and are warming up to 55 DEG C, extra-fine grinding 2 hours, Dry to obtain mixture I;
(2) by high hydroxy polyester resin, Hydroxylated acrylic resin, HDI trimer, sodium tartrate, carboxymethyl Sodium cellulosate, titanate coupling agent, nano-attapulgite, nanometer glass fiber, modified tree ash mixing are all After even under Microwave Frequency stove 2000MHz, power 600W microwave treatment 15 minutes, obtain material II;
(3) material I, material II and surplus stock are mixed, are heated to 120 DEG C of insulated and stirred 15 minutes, Then cool down,.

Claims (4)

1. the valve coating that a nano-attapulgite is modified, it is characterised in that: by the raw material of following weight portion Make: high hydroxy polyester resin 50-60 part, Hydroxylated acrylic resin 10-15 part, HDI trimer 1-3 Part, nano titanium oxide 2-4 part, sodium tartrate 3-5 part, Lac regis apis 3-5 part, hexamethyl disiloxane 1-3 part, sodium carboxymethyl cellulose 1-2 part, titanate coupling agent 1-3 part, paraffin oil 3-4 part, nanometer are recessed Convex rod soil 10-20 part, nanometer glass fiber 20-30 part, modified tree ash 3-5 part, coalescents 4-6 Part, ethylene glycol 5-6 part, water 15-20 part.
The valve coating that nano-attapulgite the most according to claim 1 is modified, it is characterised in that: institute The coalescents stated is prepared by following methods: ratio is by Colophonium 1-3 part, epoxy soybean oil 4-6 by weight Part, glyceryl monostearate 1-2 part, uniform at 150-170 DEG C of melt blending, then temperature is adjusted to 90-100 DEG C, add acrylic acid 3-5 part, the stirring of Silane coupling reagent KH-570 1-2 part 1-2 hour, to obtain final product.
The valve coating that nano-attapulgite the most according to claim 1 is modified, it is characterised in that: institute The modified tree ash stated is prepared by following methods: first by 10-15% hydrogen peroxide dipping tree ash 1-2 hour After, it is washed with deionized to neutrality, dries, be subsequently adding the nanometer being equivalent to tree ash weight 1-2% Carbon, the polyisobutylene of 1-2%, the tributyl citrate of 1-2%, the ferrocene of cross-linking agent TAC, 1-2% of 1-2%, After high speed 3500-3800 rev/min stirs 30-40 minute, ovendry power is broken into nanometer powder, to obtain final product.
The preparation method of the valve coating that nano-attapulgite the most according to claim 1 is modified, it is special Levy and be: include following preparation process:
(1) by nano titanium oxide in 500-600 DEG C of high-temperature calcination 20-30 minute, it is cooled to room temperature ultrasonic Shaking 10-20 minute, addition Lac regis apis, hexamethyl disiloxane stir, and are warming up to 50-60 DEG C, super Fine lapping 1-2 hour, dries to obtain mixture I;
(2) by high hydroxy polyester resin, Hydroxylated acrylic resin, HDI trimer, sodium tartrate, carboxymethyl Sodium cellulosate, titanate coupling agent, nano-attapulgite, nanometer glass fiber, modified tree ash mixing are all After even under Microwave Frequency stove 2000MHz, power 600W microwave treatment 10-20 minute, obtain material II;
(3) material I, material II and surplus stock are mixed, be heated to 100-120 DEG C of insulated and stirred 10-15 Minute, then cool down,.
CN201610264368.8A 2016-04-25 2016-04-25 Nanometer attapulgite modified valve coating and preparation method thereof Pending CN105733420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610264368.8A CN105733420A (en) 2016-04-25 2016-04-25 Nanometer attapulgite modified valve coating and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201610264368.8A CN105733420A (en) 2016-04-25 2016-04-25 Nanometer attapulgite modified valve coating and preparation method thereof

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CN105733420A true CN105733420A (en) 2016-07-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904623A (en) * 2017-04-12 2017-06-30 明光市外泰高分子材料有限公司 A kind of purifying modified method of attapulgite
CN109627970A (en) * 2018-12-12 2019-04-16 东至绿洲环保化工有限公司 A kind of organosilicon automobile protective paint and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227747A (en) * 2008-03-19 2009-10-08 Kansai Paint Co Ltd Rust-preventive coating composition
CN102977485A (en) * 2012-10-31 2013-03-20 蚌埠凯盛工程技术有限公司 Nanometer attapulgite-modified chlorosulfonated polyethylene rubber gasket and preparation method thereof
CN105153917A (en) * 2015-07-30 2015-12-16 安徽荣达阀门有限公司 Valve antifouling powdery paint with good film-forming toughness and manufacture method thereof
CN105153884A (en) * 2015-07-30 2015-12-16 安徽荣达阀门有限公司 Self-cleaning valve antifouling powdery paint and manufacturing method thereof
CN105482636A (en) * 2015-12-23 2016-04-13 铜陵市经纬流体科技有限公司 Vibration and noise reduction powder coating for water pump and preparation method of powder coating

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009227747A (en) * 2008-03-19 2009-10-08 Kansai Paint Co Ltd Rust-preventive coating composition
CN102977485A (en) * 2012-10-31 2013-03-20 蚌埠凯盛工程技术有限公司 Nanometer attapulgite-modified chlorosulfonated polyethylene rubber gasket and preparation method thereof
CN105153917A (en) * 2015-07-30 2015-12-16 安徽荣达阀门有限公司 Valve antifouling powdery paint with good film-forming toughness and manufacture method thereof
CN105153884A (en) * 2015-07-30 2015-12-16 安徽荣达阀门有限公司 Self-cleaning valve antifouling powdery paint and manufacturing method thereof
CN105482636A (en) * 2015-12-23 2016-04-13 铜陵市经纬流体科技有限公司 Vibration and noise reduction powder coating for water pump and preparation method of powder coating

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李丽等: "自洁防污铁路涂料研究", 《新技术新工艺》 *
林宣益: "《涂料助剂》", 31 July 2006 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904623A (en) * 2017-04-12 2017-06-30 明光市外泰高分子材料有限公司 A kind of purifying modified method of attapulgite
CN106904623B (en) * 2017-04-12 2019-02-22 安徽菲扬新材料有限公司 A kind of purifying modified method of attapulgite
CN109627970A (en) * 2018-12-12 2019-04-16 东至绿洲环保化工有限公司 A kind of organosilicon automobile protective paint and preparation method thereof

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