A kind of corrosion resistant tablecloth coating and preparation method thereof
Technical field
The present invention relates to a kind of preparation method of tablecloth coating, particularly relate to a kind of preparation method of the tablecloth coating with good decay resistance.
Background technology
Conventional tablecloth is prepared from by synthetic fiber conventionally, and coating processing is not passed through on surface.In daily use, running into after the long-time corrosion of acetic acid, alkali lye, salting liquid, can produce disrepair phenomenon, affect the normal use of tablecloth.Conventionally researcher is less carries out special treatment to tablecloth and increases the corrosion resistance characteristic of tablecloth.If coating processing is carried out in the top layer of tablecloth, after coating is processed, after with acid solution or alkali lye, it being tested for a long time, there is good erosion-resisting effect, can improve the using value containing cated tablecloth.The coating of selecting what type is to improve the key point of decay resistance of tablecloth, needs our further investigated.
Summary of the invention
The technical problem solving: the anticorrosion effect of common home-use tablecloth is poor, after Long contact time bronsted lowry acids and bases bronsted lowry, meeting produces the problem of heavy corrosion phenomenon.
Technical scheme: the invention discloses a kind of corrosion resistant tablecloth coating and preparation method thereof, tablecloth coating is made up of according to weight ratio following composition: butadiene is that 8~13 parts, polystyrene are that 4~6 parts, ABS resin are that 7~9 parts, polycarbonate resin are that 4~5 parts, poly(4-methyl-1-pentene) are that 1~3 part, dicyclopentadiene are that 2~4 parts, propyl acetate are that 15~18 parts, propylene glycol are 4~7 parts.
A preparation method for corrosion resistant tablecloth coating, comprises the following steps: temperature of reaction kettle is adjusted to 160 ℃ by (1); (2) be that 7~9 parts, polycarbonate resin are that 4~5 parts, poly(4-methyl-1-pentene) are that 1~3 part, dicyclopentadiene are 2~4 parts to adding ABS resin in reactor, stir with paddle, speed of agitator is 140rpm~160rpm, and the time is 70~90min; (3) temperature of reaction kettle is down to 120 ℃, adding butadiene is that 8~13 parts, polystyrene are 4~6 parts, stirs; (4) adding propyl acetate after again temperature of reaction kettle being down to 90 ℃ is that 15~18 parts, propylene glycol are 4~7 parts, and speed of agitator is 140rpm~160rpm, and the time is 70~90min, then is cooled to room temperature.
The ABS resin adding when preparation is preferably 8~9 parts.
The poly(4-methyl-1-pentene) adding when preparation is preferably 2~3 parts.
The polystyrene adding when preparation is preferably 4~5 parts.
Beneficial effect: the tablecloth coating of preparation of the present invention is after being applied on tablecloth, can tolerate 30wt% acetum soak 10 days to 30 days unchanged, the soaking in sodium carbonate solution 30 days to 50 days of tolerance 40wt% is unchanged, the sodium chloride solution of tolerance 30wt% soak 40 days to 60 days unchanged.
The specific embodiment
Embodiment 1
(1) temperature of reaction kettle is adjusted to 160 ℃; (2) be that 7kg, polycarbonate resin are that 5kg, poly(4-methyl-1-pentene) are that 1kg, dicyclopentadiene are 4kg to adding ABS resin in reactor, stir with paddle, speed of agitator is 160rpm, and the time is 70min; (3) temperature of reaction kettle is down to 120 ℃, adding butadiene is that 8kg, polystyrene are 6kg, stirs; (4) adding propyl acetate after again temperature of reaction kettle being down to 90 ℃ is that 15kg, propylene glycol are 7kg, and speed of agitator is 160rpm, and the time is 70min, then is cooled to room temperature, is prepared into corrosion resistant tablecloth coating.
Embodiment 2
(1) temperature of reaction kettle is adjusted to 160 ℃; (2) be that 8kg, polycarbonate resin are that 4kg, poly(4-methyl-1-pentene) are that 3kg, dicyclopentadiene are 3kg to adding ABS resin in reactor, stir with paddle, speed of agitator is 140rpm, and the time is 90min; (3) temperature of reaction kettle is down to 120 ℃, adding butadiene is that 11kg, polystyrene are 4kg, stirs; (4) adding propyl acetate after again temperature of reaction kettle being down to 90 ℃ is that 17kg, propylene glycol are 4kg, and speed of agitator is 150rpm, and the time is 90min, then is cooled to room temperature, is prepared into corrosion resistant tablecloth coating.
Embodiment 3
(1) temperature of reaction kettle is adjusted to 160 ℃; (2) be that 9kg, polycarbonate resin are that 5kg, poly(4-methyl-1-pentene) are that 2kg, dicyclopentadiene are 2kg to adding ABS resin in reactor, stir with paddle, speed of agitator is 150rpm, and the time is 80min; (3) temperature of reaction kettle is down to 120 ℃, adding butadiene is that 13kg, polystyrene are 5kg, stirs; (4) adding propyl acetate after again temperature of reaction kettle being down to 90 ℃ is that 18kg, propylene glycol are 6kg, and speed of agitator is 140rpm, and the time is 80min, then is cooled to room temperature, is prepared into corrosion resistant tablecloth coating.
By being coated in the whole outer surfaces of tablecloth after the tablecloth coating heating of embodiment 1, embodiment 2, embodiment 3, dry, coating layer thickness is 0.5mm.The tablecloth of embodiment 1, embodiment 2, embodiment 3 being put into respectively to the acetum of 30wt% places 10 days, 30 days, 50 days, put into respectively the soaking in sodium carbonate solution 30 days, 50 days, 70 days of 40wt%, the sodium chloride solution of putting into 30wt% soaks 40 days, 50 days, 60 days.
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Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Acid accumulator resistance |
Corrosion-free phenomenon after 10 days |
Corrosion-free phenomenon after 30 days |
After 50 days, tablecloth has trickle corrosion phenomenon |
Alkaline-resisting intensity |
Corrosion-free phenomenon after 30 days |
Corrosion-free phenomenon after 50 days |
After 70 days, tablecloth has obvious corrosion phenomenon |
Salt tolerant intensity |
Corrosion-free phenomenon after 40 days |
Corrosion-free phenomenon after 50 days |
Corrosion-free phenomenon after 60 days |
The tablecloth coating of preparing by this method can effectively tolerate the corrosion of acid solution, alkali lye and salting liquid, can be widely used in the surface of tablecloth, improves its decay resistance.