CN104231782A - Preparation method for protective paint for highway barriers - Google Patents
Preparation method for protective paint for highway barriers Download PDFInfo
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- CN104231782A CN104231782A CN201310234699.3A CN201310234699A CN104231782A CN 104231782 A CN104231782 A CN 104231782A CN 201310234699 A CN201310234699 A CN 201310234699A CN 104231782 A CN104231782 A CN 104231782A
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- polyvinyl alcohol
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Abstract
The invention discloses a preparation method for protective paint for highway barriers. The protective paint is composed of the following compositions in parts by weight: 100-110 parts of poly(vinyl acetate), 60-70 parts of polyvinyl alcohol methyl ester, 40-50 parts of polyvinyl alcohol, 11-13 parts of 2-chloroethanesulfonic acid, 5-8 parts of dimethyl phthalate, 6-8 parts of methanol, 20-30 parts of titanium dioxide, 12-14 parts of purified bentonite, 3-5 parts of BYK306, and 60-70 parts of water. The preparation method comprises: adding poly(vinyl acetate), polyvinyl alcohol methyl ester and polyvinyl alcohol into a reaction kettle with water, heating and turning on stirring, controlling the rotation speed to be 100-200 r/min, dropwise adding 2-chloroethanesulfonic acid when the temperature is 100-120 DEG C, and reacting at the temperature for 60-90 min; adding methanol into the reaction kettle, reacting at 130-160 DEG C for 120-150 min; and then adding BYK306, titanium dioxide and purified bentonite and stirring uniformly, cooling to room temperature, gradually adding dimethyl phthalate with stirring, and uniformly stirring, so as to form the protective paint.
Description
Technical field
The present invention relates to traffic facilities technical field, particularly relate to a kind of preparation method of Protective paint for highway guardrail.
Background technology
Flourish along with road traffic cause, freeway guardrail is as basic traffic facilities, and demand increases day by day, and freeway guardrail is all the metal side of making or flat column and waveform backplate usually.Because it uses all the year round under the various weathers such as wind, frost, rain, snow, salt fog, sunlight and environment, rust protection becomes the important means extending its work-ing life, Chinese patent 91208803 adopts zinc-plated or dips in the way of moulding, but sticking power is weak, acid-and base-resisting, salt fog difference; Application number be 200420038267 Chinese patent advocate use have the metallic substance of antirust enamel layer to make protective grating; In addition, the way such as also useful electrostatic spraying (ZL93231869), glass-reinforced plastic material (ZL02275076), PVC material (ZL03242945) reaches rust stable object.But it is not that weather resisteant is poor, be exactly can't bear burden economically.Therefore the demand of producing freeway guardrail coating is also constantly increased.It is very special that the particular surroundings used due to freeway guardrail requires coating quality used, and except requiring that hardness of film is high, the high performance requirements of salt fog resistance, weathering resistance, water-tolerant etc., also should meet the low cost requirement of production in enormous quantities.Some protective paints are reported in prior art, the paint reported as application number 97119932,00105934,02109655,03104618 etc. is not all based on polyvinyl alcohol, its consumption is no more than 10%, mainly use the superpolymer such as benzene emulsion, white glue with vinyl, methylcellulose gum, then it is formulated to be equipped with several filler, batching etc.Though title intensity is high, abrasion-resistant, sand papering difficult drop-off, but as being with being far from being enough under that weather condition of motorway, and production cost is high, although external imported product performance meets the requirements, market price is high, and the haul-cycle time is long, be difficult to be accepted by users, market is limited.
Summary of the invention
The object of the invention is to the preparation method proposing a kind of Protective paint for highway guardrail, to overcome above-mentioned prior art weak point, and provide the preparation method of the protective paint that a kind of hardness is high, salt fog resistance, weathering resistance, water-tolerant, cost are low.
For reaching this object, the present invention by the following technical solutions:
A kind of preparation method of Protective paint for highway guardrail, described protective paint is made up of following component with parts by weight: polyvinylacetate 100-110 part, polyvinyl alcohol methyl esters 60-70 part, polyvinyl alcohol 40-50 part, 2-chloroethene sulfonic acid 11-13 part, dimethyl phthalate 5-8 part, methyl alcohol 6-8 part, titanium dioxide 20-30 part, purification wilkinite 12-14 part, BYK3063-5 part, water 60-70 part, described preparation method comprises the steps: polyvinylacetate, polyvinyl alcohol methyl esters, polyvinyl alcohol adds and is equipped with in the reactor of water, heat up and start stirring, rotating speed is made to be 100-200 rev/min, 2-chloroethene sulfonic acid is dripped when 100-120 DEG C, react 60-90 minute at this temperature, methyl alcohol is added in reactor, in 130-160 DEG C of reaction 120-150 minute, then add BYK306, titanium dioxide and purification wilkinite and stir, then being cooled to room temperature, under stirring, progressively adding dimethyl phthalate, stir.
Protective paint prepared by the present invention all obtains satisfactory result through carrying out following performance test by the countries concerned's standard:
Table: the performance test results of protective paint of the present invention
The present invention possesses following beneficial effect:
1) titanium dioxide and the wilkinite after purifying is added in protective paint of the present invention, as can be seen from the above table, the index such as impact resistance, salt-fog resistant test, anti-aging test, heatproof thermal test, time of drying of protective paint of the present invention is given prominence to, other index also reaches existing protective paint level at the same level, makes protective paint excellent combination property.
2) product of the present invention is practically applicable to the requirement of expressway barrier surface anticorrosion completely.Moreover, the enamelled coating due to product of the present invention also has electrochemical anti-corrosive function, continuous high temperature (400 ~ 500 DEG C) resistivity is low, can anti-electrostatic, radioprotective, resistance to smog, ageing-resistant, and weathering resistance reaches U.S. AAMA2605-98 technological standard.
3) overcoating of enamelled coating is good, and breakage repeats to cover with paint, lacquer, colour wash, etc. and repair easily;
4) enamelled coating surface energy is low, resistance to pickup, easy cleaning;
Embodiment
Technical scheme of the present invention is further illustrated below in conjunction with embodiment.
Embodiment one
A kind of preparation method of Protective paint for highway guardrail, described protective paint is made up of following component with parts by weight: polyvinylacetate 100 parts, polyvinyl alcohol methyl esters 70 parts, polyvinyl alcohol 40 parts, 2-chloroethene sulfonic acid 13 parts, dimethyl phthalate 5 parts, methyl alcohol 8 parts, titanium dioxide 20 parts, purification wilkinite 14 parts, BYK3063 part, 70 parts, water, described preparation method comprises the steps: polyvinylacetate, polyvinyl alcohol methyl esters, polyvinyl alcohol adds and is equipped with in the reactor of water, heat up and start stirring, rotating speed is made to be 100 revs/min, 2-chloroethene sulfonic acid is dripped 120 DEG C time, react 60 minutes at this temperature, methyl alcohol is added in reactor, in 160 DEG C of reactions 120 minutes, then add BYK306, titanium dioxide and purification wilkinite and stir, then being cooled to room temperature, under stirring, progressively adding dimethyl phthalate, stir.
Embodiment two
A kind of preparation method of Protective paint for highway guardrail, described protective paint is made up of following component with parts by weight: polyvinylacetate 110 parts, polyvinyl alcohol methyl esters 60 parts, polyvinyl alcohol 50 parts, 2-chloroethene sulfonic acid 11 parts, dimethyl phthalate 8 parts, methyl alcohol 6 parts, titanium dioxide 30 parts, purification wilkinite 12 parts, BYK3065 part, 60 parts, water, described preparation method comprises the steps: polyvinylacetate, polyvinyl alcohol methyl esters, polyvinyl alcohol adds and is equipped with in the reactor of water, heat up and start stirring, rotating speed is made to be 200 revs/min, 2-chloroethene sulfonic acid is dripped 100 DEG C time, react 90 minutes at this temperature, methyl alcohol is added in reactor, in 130 DEG C of reactions 150 minutes, then add BYK306, titanium dioxide and purification wilkinite and stir, then being cooled to room temperature, under stirring, progressively adding dimethyl phthalate, stir.
Embodiment three
A kind of preparation method of Protective paint for highway guardrail, described protective paint is made up of following component with parts by weight: polyvinylacetate 105 parts, polyvinyl alcohol methyl esters 65 parts, polyvinyl alcohol 45 parts, 2-chloroethene sulfonic acid 12 parts, dimethyl phthalate 6.5 parts, methyl alcohol 7 parts, titanium dioxide 25 parts, purification wilkinite 13 parts, BYK3064 part, 65 parts, water, described preparation method comprises the steps: polyvinylacetate, polyvinyl alcohol methyl esters, polyvinyl alcohol adds and is equipped with in the reactor of water, heat up and start stirring, rotating speed is made to be 150 revs/min, 2-chloroethene sulfonic acid is dripped 110 DEG C time, react 75 minutes at this temperature, methyl alcohol is added in reactor, in 140 DEG C of reactions 135 minutes, then add BYK306, titanium dioxide and purification wilkinite and stir, then being cooled to room temperature, under stirring, progressively adding dimethyl phthalate, stir.
Claims (1)
1. the preparation method of a Protective paint for highway guardrail, it is characterized in that, described protective paint is made up of following component with parts by weight: polyvinylacetate 100-110 part, polyvinyl alcohol methyl esters 60-70 part, polyvinyl alcohol 40-50 part, 2-chloroethene sulfonic acid 11-13 part, dimethyl phthalate 5-8 part, methyl alcohol 6-8 part, titanium dioxide 20-30 part, purification wilkinite 12-14 part, BYK306 3-5 part, water 60-70 part, described preparation method comprises the steps: polyvinylacetate, polyvinyl alcohol methyl esters, polyvinyl alcohol adds and is equipped with in the reactor of water, heat up and start stirring, rotating speed is made to be 100-200 rev/min, 2-chloroethene sulfonic acid is dripped when 100-120 DEG C, react 60-90 minute at this temperature, methyl alcohol is added in reactor, in 130-160 DEG C of reaction 120-150 minute, then add BYK306, titanium dioxide and purification wilkinite and stir, then being cooled to room temperature, under stirring, progressively adding dimethyl phthalate, stir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234699.3A CN104231782A (en) | 2013-06-13 | 2013-06-13 | Preparation method for protective paint for highway barriers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310234699.3A CN104231782A (en) | 2013-06-13 | 2013-06-13 | Preparation method for protective paint for highway barriers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104231782A true CN104231782A (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310234699.3A Pending CN104231782A (en) | 2013-06-13 | 2013-06-13 | Preparation method for protective paint for highway barriers |
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| CN (1) | CN104231782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886132A (en) * | 2018-03-29 | 2020-11-03 | 日本制铁株式会社 | Coated metal plate and joint member having the same |
-
2013
- 2013-06-13 CN CN201310234699.3A patent/CN104231782A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886132A (en) * | 2018-03-29 | 2020-11-03 | 日本制铁株式会社 | Coated metal plate and joint member having the same |
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Application publication date: 20141224 |