CN110655842A - Viaduct acrylic primer and preparation method thereof - Google Patents
Viaduct acrylic primer and preparation method thereof Download PDFInfo
- Publication number
- CN110655842A CN110655842A CN201910934147.0A CN201910934147A CN110655842A CN 110655842 A CN110655842 A CN 110655842A CN 201910934147 A CN201910934147 A CN 201910934147A CN 110655842 A CN110655842 A CN 110655842A
- Authority
- CN
- China
- Prior art keywords
- parts
- calcium carbonate
- nano calcium
- acrylic
- acrylic primer
- Prior art date
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/08—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/064—Polymers containing more than one epoxy group per molecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/14—Polycondensates modified by chemical after-treatment
- C08G59/1433—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds
- C08G59/1438—Polycondensates modified by chemical after-treatment with organic low-molecular-weight compounds containing oxygen
- C08G59/1455—Monocarboxylic acids, anhydrides, halides, or low-molecular-weight esters thereof
- C08G59/1461—Unsaturated monoacids
- C08G59/1466—Acrylic or methacrylic 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Medicine (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a viaduct acrylic primer and a preparation method thereof, and relates to the technical field of coatings. The technical key points are as follows: the elevated bridge acrylic primer comprises the following components in parts by weight: epoxy modified acrylic resin: 55-60 parts; octyl phthalate: 0.2-0.4 part; pigment and filler: 20-25 parts; chlorinated paraffin: 4-5 parts; modified nano calcium carbonate: 1.5-3 parts; bentonite: 3-4 parts of acrylic primer prepared by the formula has the advantages of good mechanical property and strong corrosion resistance.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a viaduct acrylic primer and a preparation method thereof.
Background
The construction and development of urban viaducts are very rapid, and along with the continuous improvement of requirements of social public on urban environment and landscape, the importance of the waterborne anticorrosive coating on the surfaces of various bridges is increasingly shown.
The bridge concrete structure has a plurality of micro channels or holes, and is easily corroded by acid rain, low-temperature freeze thawing, snow-melting agent, mould and algae organisms, so that the durability of the concrete is lost. Some substances enter the concrete and react with the concrete to expand the concrete structure, so that the concrete structure is forced to crack. Corrosion factors (i.e., moisture, oxygen, chloride ions, etc.) permeate into the concrete, causing corrosion of the reinforcing steel bars, further resulting in deterioration of the concrete.
Therefore, a new solution is needed to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the acrylic primer for the viaduct, which has the advantages of good mechanical property and strong corrosion resistance.
In order to achieve the first purpose, the invention provides the following technical scheme:
the elevated bridge acrylic primer comprises the following components in parts by weight:
epoxy modified acrylic resin: 55-60 parts;
octyl phthalate: 0.2-0.4 part;
pigment and filler: 20-25 parts;
chlorinated paraffin: 4-5 parts;
modified nano calcium carbonate: 1.5-3 parts;
bentonite: 3-4 parts.
By adopting the technical scheme, the acrylic resin has excellent gloss retention, color retention, outdoor durability, water resistance, chemical resistance and physical and mechanical properties, and the epoxy modified acrylic resin prepared by introducing the allyl unsaturated double bonds at the two ends of the molecular chain of the epoxy resin fully exerts the excellent properties of gloss, hardness, adhesive force and the like, and is more suitable for occasions with higher requirements such as viaducts and the like.
By adding the nano calcium carbonate, pores between large particles and a formed film can be filled, the capillary action is reduced, and the compactness and the corrosion resistance of the coating are improved. In addition, the nano calcium carbonate is subjected to surface modification treatment, so that the surface energy is reduced, active groups on the surface of the nano calcium carbonate are increased, the wettability of the nano calcium carbonate and an epoxy modified acrylic resin interface is improved, the interaction between the nano calcium carbonate and the epoxy modified acrylic resin is enhanced, a coating is more compact during formation, and the purposes of improving dispersion and improving the mechanical property of the coating and the corrosion resistance of the coating are achieved.
Further preferably, the epoxy modified acrylic resin comprises the following components in parts by weight:
epoxy resin: 20-30 parts of a solvent;
methacrylate ester: 40-50 parts;
acrylic acid: 5-20 parts of a solvent;
octyl acrylate: 30-40 parts;
styrene: 20-30 parts of a solvent;
hydroxypropyl acrylate: 20-30 parts of a solvent;
initiator: 5-8 parts;
butyl acetate: 20-30 parts.
By adopting the technical scheme, methyl methacrylate, acrylic acid, octyl acrylate, styrene and hydroxypropyl acrylate are used as monomers, epoxy resin is used as a modifier, and then the thermosetting epoxy modified acrylic resin is obtained through polymerization under the catalysis of an initiator, so that the thermosetting epoxy modified acrylic resin has excellent fullness, glossiness, hardness, adhesive force and weather resistance.
Further preferably, the initiator is azodiisobutyamidine hydrochloride or benzoyl peroxide.
By adopting the technical scheme, the azodiisobutyl amidine hydrochloride is easy to dissolve in a solvent and has no other side reaction or induction reaction, belongs to a linear polymerization initiator, and the reaction rate is easy to control; the benzoyl peroxide has no side effect when used and is easy to control the reaction process.
Further preferably, the epoxy modified acrylic resin is obtained by the following preparation steps: mixing epoxy resin and butyl acetate, stirring and heating to 80 ℃, adding acrylic acid, carrying out heat preservation reaction for 2h, adding methacrylate, octyl acrylate, styrene, hydroxypropyl acrylate and an initiator, carrying out heat preservation reaction for 2-3h, and cooling to room temperature to obtain the epoxy modified acrylic resin.
By adopting the technical scheme, the epoxy modified acrylic resin prepared by the method has low operation requirement, high efficiency and high conversion rate, and the prepared epoxy modified acrylic resin has good mechanical property.
Further preferably, the modified nano calcium carbonate comprises the following components in parts by weight:
nano calcium carbonate emulsion: 70-80 parts;
compound modifier: 0.1 to 0.3 portion.
By adopting the technical scheme, the surface of the unmodified calcium carbonate is hydrophilic, so that the calcium carbonate is difficult to disperse in a nonpolar medium, the viscosity is higher, after the calcium carbonate is modified by the composite modifier, the polarity of the surface of the calcium carbonate is changed into the nonpolar, the compatibility between the calcium carbonate and the nonpolar octyl phthalate dispersion medium is enhanced, the aggregation tendency among particles is weakened, and the viscosity of the system is greatly reduced.
More preferably, the solid content of the nano calcium carbonate emulsion is 7.5-8%, and the particle size of the nano calcium carbonate emulsion is 48-52 nm.
By adopting the technical scheme, the manufacturing cost of the modified nano calcium carbonate is increased due to the high solid content, the nano calcium carbonate is not beneficial to the bonding reaction of the nano calcium carbonate and the modifier, the viscosity of the product is difficult to control, the reaction degree is easier to control and the modified nano calcium carbonate with good dispersion performance is obtained due to the nano calcium carbonate with the solid content of 7.5-8% and the particle size of 48-52 nm.
Further preferably, the composite modifier comprises a titanate coupling agent and a polymeric dispersant.
By adopting the technical scheme, the modifier is compounded by adopting the titanate coupling agent and the polymer dispersant, the polymer dispersant can disperse the nano calcium carbonate in advance to play a role in dispersing and stabilizing the nano calcium carbonate, and then the titanate coupling agent is bonded with hydroxyl on the surface of nano calcium carbonate particles to form Ti-O-Ca bonds, so that the titanium-calcium-titanate nano calcium carbonate coating has the capability of playing a role in chemical bonding with resin and greatly improves the capability of the coating.
Further preferably, the modified nano calcium carbonate is obtained by the following preparation steps: uniformly mixing the nano calcium carbonate emulsion with the composite modifier, heating to 80-85 ℃, stirring and reacting for 1-1.5h at the rotating speed of 15000-.
By adopting the technical scheme, the modified nano calcium carbonate prepared by the method has low operation requirement, high efficiency and high conversion rate, and the prepared modified nano calcium carbonate has excellent dispersion performance and good compatibility with other resins and monomers.
The second purpose of the invention is to provide a preparation method of the acrylic primer for the viaduct, and the acrylic primer for the viaduct prepared by the method has the advantages of good mechanical property and strong corrosion resistance.
In order to achieve the second purpose, the invention provides the following technical scheme:
a preparation method of a viaduct acrylic primer comprises the following steps:
adding epoxy modified acrylic resin, pigment and filler, octyl phthalate and chlorinated paraffin into a grinding machine for grinding to obtain paint slurry with the particle size of 1-3 mm;
and step two, adding bentonite and modified nano calcium carbonate, and stirring at the rotating speed of 900r/min for 10-30min to obtain the overpass acrylic primer.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) according to the preparation method, the acrylic-modified epoxy acrylic resin prepared by introducing the allyl unsaturated double bonds at the two ends of the molecular chain of the epoxy resin fully exerts the excellent performances of luster, hardness, adhesive force and the like, and is more suitable for occasions with higher requirements such as viaducts and the like;
(2) the nano calcium carbonate is added into the acrylic primer and the surface of the nano calcium carbonate is modified, so that the surface energy is reduced, the active groups on the surface of the nano calcium carbonate are increased, the wettability of the nano calcium carbonate and an epoxy modified acrylic resin interface is improved, the interaction between the nano calcium carbonate and the epoxy modified acrylic resin is enhanced, the coating is more compact during formation, and the purposes of improving dispersion and improving the mechanical property of the coating and the corrosion resistance of the coating are achieved;
(3) the application also provides a preparation method of the epoxy modified acrylic resin and the modified nano calcium carbonate, the method is simple, the conversion rate is high, and the obtained acrylic primer system is good in dispersity and stable.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples. It is to be noted that those not indicated for specific conditions, carried out under the conventional conditions or conditions recommended by the manufacturer, and those not indicated for the reagents or equipment, are conventional products which can be obtained by commercially purchasing them.
Wherein, the pigment and the filler are selected from common commercial iron oxide red, and the epoxy resin is selected from common commercial E-44 epoxy resin.
Example 1: an elevated bridge acrylic primer is prepared by the following steps:
(1) preparing epoxy modified acrylic resin: mixing 20 parts of E-44 epoxy resin and 20 parts of butyl acetate, stirring and heating to 80 ℃, adding 5 parts of acrylic acid, carrying out heat preservation reaction for 2 hours, adding 40 parts of methacrylate, 30 parts of octyl acrylate, 20 parts of styrene, 20 parts of hydroxypropyl acrylate and 5 parts of initiator, carrying out heat preservation reaction for 2 hours, and cooling to room temperature to obtain epoxy modified acrylic resin;
(2) preparing modified nano calcium carbonate: uniformly mixing 70 parts of nano calcium carbonate emulsion and 0.1 part of composite modifier, heating to 80 ℃, stirring at the rotating speed of 15000r/min for reaction for 1.5 hours, carrying out suction filtration, vacuum drying and crushing to obtain modified nano calcium carbonate;
(3) preparing the acrylic primer for the viaduct: adding 55 parts of epoxy modified acrylic resin, 20 parts of pigment and filler, 0.2 part of octyl phthalate and 4 parts of chlorinated paraffin into a grinding machine for grinding to obtain paint paste with the particle size of 1-3 mm; 3 parts of bentonite and 1.5 parts of modified nano calcium carbonate are added, and the mixture is stirred for 30min at the rotating speed of 700r/min, so that the high-bridging acrylic primer is obtained.
Wherein the initiator is azodiisobutyl amidine hydrochloride; the composite modifier comprises a titanate coupling agent and a polymer dispersant, the weight ratio of the titanate coupling agent to the polymer dispersant is 10:1, and the polymer dispersant is polyethylene glycol with the molecular weight of 20000-one 60000; the solid content of the nano calcium carbonate emulsion is 7.5 percent, and the particle size is 48 nm.
Example 2: an elevated bridge acrylic primer is prepared by the following steps:
(1) preparing epoxy modified acrylic resin: mixing 30 parts of E-44 epoxy resin and 30 parts of butyl acetate, stirring and heating to 80 ℃, adding 20 parts of acrylic acid, carrying out heat preservation reaction for 2 hours, adding 50 parts of methacrylate, 40 parts of octyl acrylate, 30 parts of styrene, 30 parts of hydroxypropyl acrylate and 8 parts of initiator, carrying out heat preservation reaction for 2 hours, and cooling to room temperature to obtain epoxy modified acrylic resin;
(2) preparing modified nano calcium carbonate: uniformly mixing 80 parts of nano calcium carbonate emulsion and 0.3 part of composite modifier, heating to 80 ℃, stirring at the rotating speed of 15000r/min for reaction for 1.5 hours, carrying out suction filtration, vacuum drying and crushing to obtain modified nano calcium carbonate;
(3) preparing the acrylic primer for the viaduct: adding 60 parts of epoxy modified acrylic resin, 25 parts of pigment and filler, 0.4 part of octyl phthalate and 5 parts of chlorinated paraffin into a grinding machine for grinding to obtain paint paste with the particle size of 1-3 mm; adding 4 parts of bentonite and 3 parts of modified nano calcium carbonate, and stirring at the rotating speed of 700r/min for 30min to obtain the high-bridging acrylic primer.
Wherein the initiator is azodiisobutyl amidine hydrochloride; the composite modifier comprises a titanate coupling agent and a polymer dispersant, the weight ratio of the titanate coupling agent to the polymer dispersant is 10:1, the polymer dispersant adopts polyethylene glycol with the molecular weight of 20000-one 60000, the solid content of the nano calcium carbonate emulsion is 7.5%, and the particle size is 48 nm.
Example 3: an elevated bridge acrylic primer is prepared by the following steps:
(1) preparing epoxy modified acrylic resin: mixing 20 parts of E-44 epoxy resin and 20 parts of butyl acetate, stirring and heating to 80 ℃, adding 5 parts of acrylic acid, carrying out heat preservation reaction for 2 hours, adding 40 parts of methacrylate, 30 parts of octyl acrylate, 20 parts of styrene, 20 parts of hydroxypropyl acrylate and 5 parts of initiator, carrying out heat preservation reaction for 3 hours, and cooling to room temperature to obtain epoxy modified acrylic resin;
(2) preparing modified nano calcium carbonate: uniformly mixing 70 parts of nano calcium carbonate emulsion and 0.1 part of composite modifier, heating to 85 ℃, stirring at the rotating speed of 16000r/min for reaction for 1 hour, performing suction filtration, vacuum drying and crushing to obtain modified nano calcium carbonate;
(3) preparing the acrylic primer for the viaduct: adding 55 parts of epoxy modified acrylic resin, 20 parts of pigment and filler, 0.2 part of octyl phthalate and 4 parts of chlorinated paraffin into a grinding machine for grinding to obtain paint paste with the particle size of 1-3 mm; 3 parts of bentonite and 1.5 parts of modified nano calcium carbonate are added, and the mixture is stirred for 10min at the rotating speed of 900r/min, so as to obtain the high-bridging acrylic primer.
Wherein the initiator is azodiisobutyl amidine hydrochloride; the composite modifier comprises a titanate coupling agent and a polymer dispersant, the weight ratio of the titanate coupling agent to the polymer dispersant is 10:1, the polymer dispersant adopts polyethylene glycol with the molecular weight of 20000-one 60000, the solid content of the nano calcium carbonate emulsion is 7.5%, and the particle size is 48 nm.
Example 4: a viaduct acrylic primer is different from example 1 in that benzoyl peroxide is used as an initiator.
Example 5: the acrylic primer for the viaduct is different from the acrylic primer for the embodiment 1 in that the solid content of the nano calcium carbonate emulsion is 8 percent, and the particle size is 52 nm.
Comparative example 1: the difference from the example 1 is that the prepared acrylic primer for the viaduct bridge is not added with the modified nano calcium carbonate.
Comparative example 2: the difference from example 1 is that the nano calcium carbonate added in the prepared elevated bridge acrylic primer is not modified.
Comparative example 3: the difference from the example 1 is that the nano calcium carbonate added into the prepared elevated bridge acrylic primer is modified by only adopting a titanate coupling agent.
The mechanical properties and weather resistance of the acrylic primers for viaducts prepared in examples 1 to 7 and comparative examples 1 to 3 were respectively measured, and the results of the measurements are shown in the following Table 1.
Detection standard
Adhesion force: GB/T1720-
Hardness: GB/T6739-
Water resistance: GB/T1733 + 1993
Salt spray resistance: GB/T1765-1989.
And (3) testing results: as can be seen from the data in the table, the acrylic primer for viaducts prepared by adopting the self-made epoxy modified acrylic resin and adding the surface modified nano calcium carbonate has excellent mechanical properties and weather resistance.
Table 1 results of performance testing
| Test items | Adhesion/grade | Hardness of | Water resistance | Salt fog resistance |
| Example 1 | 1 | 4H | 1500h has no abnormal condition | No abnormal condition after 600h |
| Example 2 | 1 | 4H | 1500h has no abnormal condition | No abnormal condition after 600h |
| Example 3 | 1 | 4H | 1500h has no abnormal condition | No abnormal condition after 600h |
| Example 4 | 1 | 4H | 1500h has no abnormal condition | No abnormal condition after 600h |
| Example 5 | 1 | 4H | 1500h has no abnormal condition | No abnormal condition after 600h |
| Comparative example 1 | 4 | 1H | 480h bubbling and falling off | Foaming and dropping off within 240h |
| Comparative example 2 | 3 | 2H | Bubbling and falling off within 600h | Bubbling and falling off within 320h |
| Comparative example 3 | 2 | 3H | 820h bubbling and falling off | Bubbling and falling off within 400h |
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (9)
1. The elevated bridge acrylic primer is characterized by comprising the following components in parts by weight:
epoxy modified acrylic resin: 55-60 parts;
octyl phthalate: 0.2-0.4 part;
pigment and filler: 20-25 parts;
chlorinated paraffin: 4-5 parts;
modified nano calcium carbonate: 1.5-3 parts;
bentonite: 3-4 parts.
2. The viaduct acrylic primer according to claim 1, wherein the epoxy modified acrylic resin comprises the following components in parts by weight:
epoxy resin: 20-30 parts of a solvent;
methacrylate ester: 40-50 parts;
acrylic acid: 5-20 parts of a solvent;
octyl acrylate: 30-40 parts;
styrene: 20-30 parts of a solvent;
hydroxypropyl acrylate: 20-30 parts of a solvent;
initiator: 5-8 parts;
butyl acetate: 20-30 parts.
3. The acrylic primer according to claim 2, wherein said initiator is azodiisobutyamidine hydrochloride or benzoyl peroxide.
4. The acrylic primer for elevated bridges according to claim 2, wherein the epoxy modified acrylic resin is obtained by the following preparation steps: mixing epoxy resin and butyl acetate, stirring and heating to 80 ℃, adding acrylic acid, carrying out heat preservation reaction for 2h, adding methacrylate, octyl acrylate, styrene, hydroxypropyl acrylate and an initiator, carrying out heat preservation reaction for 2-3h, and cooling to room temperature to obtain the epoxy modified acrylic resin.
5. The overpass acrylic primer of claim 1, wherein the modified nano calcium carbonate comprises the following components in parts by weight:
nano calcium carbonate emulsion: 70-80 parts;
compound modifier: 0.1 to 0.3 portion.
6. The acrylic primer for viaducts of claim 5, wherein the nano calcium carbonate emulsion has a solid content of 7.5-8% and a particle size of 48-52 nm.
7. The overpass acrylic primer of claim 5, wherein the composite modifier comprises a titanate coupling agent and a polymeric dispersant.
8. The overpass acrylic primer of claim 5, wherein the modified nano calcium carbonate is obtained by the following preparation steps: uniformly mixing the nano calcium carbonate emulsion with the composite modifier, heating to 80-85 ℃, stirring and reacting for 1-1.5h at the rotating speed of 15000-.
9. The method for preparing the acrylic primer for viaducts as claimed in any one of claims 1 to 8, comprising the steps of:
adding epoxy modified acrylic resin, pigment and filler, octyl phthalate and chlorinated paraffin into a grinding machine for grinding to obtain paint slurry with the particle size of 1-3 mm;
and step two, adding bentonite and modified nano calcium carbonate, and stirring at the rotating speed of 900r/min for 10-30min to obtain the overpass acrylic primer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934147.0A CN110655842A (en) | 2019-09-29 | 2019-09-29 | Viaduct acrylic primer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934147.0A CN110655842A (en) | 2019-09-29 | 2019-09-29 | Viaduct acrylic primer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110655842A true CN110655842A (en) | 2020-01-07 |
Family
ID=69039865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934147.0A Withdrawn CN110655842A (en) | 2019-09-29 | 2019-09-29 | Viaduct acrylic primer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110655842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068328A (en) * | 2020-09-09 | 2020-12-11 | 温州市皓朗眼镜有限公司 | Corrosion-resistant glasses frame and processing technology thereof |
| CN115340646A (en) * | 2022-04-01 | 2022-11-15 | 江门市恒之光环保新材料有限公司 | High-brightness epoxy acrylate for curtain coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648173A (en) * | 2004-12-28 | 2005-08-03 | 中国化工建设总公司常州涂料化工研究院 | Surface modified nano calcium carbonate for corrosion resistance paint |
| CN107118311A (en) * | 2017-06-08 | 2017-09-01 | 华伦纳路新材料有限公司 | A kind of epoxy modified acrylic resin and preparation method thereof |
| CN107141925A (en) * | 2017-06-29 | 2017-09-08 | 合肥达户电线电缆科技有限公司 | A kind of cable testing bridge protective agent and preparation method |
| CN107793896A (en) * | 2017-11-23 | 2018-03-13 | 安徽柏邦钛白粉有限公司 | A kind of high-weatherability titanium white powder coating and preparation method thereof |
-
2019
- 2019-09-29 CN CN201910934147.0A patent/CN110655842A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648173A (en) * | 2004-12-28 | 2005-08-03 | 中国化工建设总公司常州涂料化工研究院 | Surface modified nano calcium carbonate for corrosion resistance paint |
| CN107118311A (en) * | 2017-06-08 | 2017-09-01 | 华伦纳路新材料有限公司 | A kind of epoxy modified acrylic resin and preparation method thereof |
| CN107141925A (en) * | 2017-06-29 | 2017-09-08 | 合肥达户电线电缆科技有限公司 | A kind of cable testing bridge protective agent and preparation method |
| CN107793896A (en) * | 2017-11-23 | 2018-03-13 | 安徽柏邦钛白粉有限公司 | A kind of high-weatherability titanium white powder coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 舒友等: "《涂料配方设计与制备》", 31 August 2014, 西南交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068328A (en) * | 2020-09-09 | 2020-12-11 | 温州市皓朗眼镜有限公司 | Corrosion-resistant glasses frame and processing technology thereof |
| CN112068328B (en) * | 2020-09-09 | 2022-02-22 | 温州市皓朗眼镜有限公司 | Corrosion-resistant glasses frame and processing technology thereof |
| CN115340646A (en) * | 2022-04-01 | 2022-11-15 | 江门市恒之光环保新材料有限公司 | High-brightness epoxy acrylate for curtain coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107236437B (en) | A kind of water-based anticorrosive paint and preparation method thereof | |
| CN101974277B (en) | White waterborne wood base coat for medium density fiberboard and preparation technology thereof | |
| CN1252201C (en) | Polymer composition | |
| CN101305025B (en) | Acrylic polymer beads and sol composition containing the same | |
| CN112143313B (en) | Polymer concrete protective coating material and preparation method thereof | |
| CN110655842A (en) | Viaduct acrylic primer and preparation method thereof | |
| CN104789100A (en) | Waterborne polyurethane dampproof anticorrosive coating and preparation method thereof | |
| CN104744639A (en) | Preparation method of organic silicon modified normal-temperature multiple self-crosslinked epoxy resin emulsion | |
| CN103601404B (en) | A kind of curing compound and preparation method thereof | |
| CN105237777A (en) | Preparation method of silicon modified waterborne epoxy resin | |
| CN104356321A (en) | Water-based polysiloxane modified epoxy resin and preparation method thereof | |
| KR100595530B1 (en) | Acrylic resin composition, water proofing agent containing the same and manufacturing method thereof | |
| DE60114089T2 (en) | Method for producing a wear-resistant coating | |
| KR20170086533A (en) | Binder composition and a paint formulation made thereof | |
| CN1188473C (en) | Aqueous coating composition with improved adhesion on brittle surface | |
| CN109251271A (en) | A kind of preparation method of temperature response type pectinate texture polycarboxylic acids | |
| CN110804126B (en) | Organic gel polymer and preparation method thereof | |
| CN110655840A (en) | Viaduct fluorocarbon primer and preparation method thereof | |
| CN102190802B (en) | Preparation method of cross-linked polymer wax micropowder | |
| JP5219773B2 (en) | Aqueous resin dispersion for coating inorganic substrates | |
| JPH0625502A (en) | Water-based dispersion-type composition | |
| CN105038486A (en) | Environmental-friendly epoxy modified acrylic based emulsion anti-rust coating | |
| JP2007039558A (en) | Water-based coating composition for road marking use | |
| CN114316160A (en) | Acrylic emulsion polymer and preparation method of water-based paint based on polymer | |
| CN110157325A (en) | A kind of water fever light dual-cured coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200107 |