Summary of the invention
The present invention is directed to the tolerance requirement that can't satisfy outdoor complex conditions that exists in the prior art, provide a kind of and have that UV resistant irradiation, anti-blown sand performance are strong, the blocking film of the excellent performance of anti-the gasoline corrosion is with weathering resistance resin and preparation method thereof.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of blocking film preparation method of weathering resistance resin is characterized in that comprising the composition preparation of following weight proportion:
Hard monomer 21-24,
Soft monomer 6-9,
Solvent 67-73,
Initiator 0.0135-0.066;
Preparation process is as follows:
(1) takes by weighing vinylformic acid hard monomer and the vinylformic acid soft monomer of above-mentioned weight ratio, all mix;
(2) take by weighing 40% of the total monomer weight that mixed in the above-mentioned steps (1), take by weighing above-mentioned weight of solvent than 30% of total amount, mix, enter reactor and be heated to backflow;
(3) take by weighing above-mentioned weight of solvent than total amount 40%, take by weighing above-mentioned initiator weight ratio total amount 70% with after step (2) takes by weighing whole monomers of remainder mix, be added drop-wise in the described reactor of step (2), time for adding is 1-1.5 hour, keeps the reflux state insulation reaction after being added dropwise to complete 1-2 hour again;
(4) take by weighing weight of solvent than 30% of total amount, with will after above-mentioned steps (3) take by weighing, mix by whole initiators of remainder, be added drop-wise in the described reactor of step (3), time for adding is 0.5-1 hour, keeps the reflux state insulation reaction after being added dropwise to complete 2-3 hour again;
(5) cooling discharging namely gets a kind of blocking film weathering resistance resin.
Prepare blocking film weathering resistance resin by above-mentioned steps, owing to adopt reaction step by step, can avoid discharging amount of heat, explosion caused danger; In the control reaction times step by step, can better control molecular weight and the second-order transition temperature of resin, thereby make the weathering resistance of resin and tack good.
As preferably, above-mentioned a kind of blocking film is with the preparation method of weathering resistance resin, and described initiator weight is the 0.056%-0.182% of vinylformic acid hard monomer and vinylformic acid soft monomer total amount.Select the initiator in the above-mentioned scope, monomer conversion is best, and the properties of resin is excellent, is embodied in: the anti-blown sand performance is strong, the excellent performance of anti-gasoline corrosion the, UV resistant irradiation; Initiator weighs less than 0.056% of vinylformic acid hard monomer and vinylformic acid soft monomer total amount, and reaction not exclusively; Initiator weight is higher than 0.182% of vinylformic acid hard monomer and vinylformic acid soft monomer total amount, can cause the waste of initiator, and cost increases.
As preferably, above-mentioned a kind of blocking film is with the preparation method of weathering resistance resin, and described initiator is benzoyl peroxide.Select this initiator, can make the reaction of monomer more complete, effectively control reaction efficiency.Initiator also can be selected azo-bis-isobutyl cyanide or azo two cyanogen in different heptan.
As preferably, above-mentioned a kind of blocking film preparation method of weathering resistance resin, described solvent is that the formulated in combination of any one or two kinds of components in toluene or the methyl iso-butyl ketone (MIBK) forms, and the weight ratio of the formulated in combination of described toluene and two kinds of components of methyl iso-butyl ketone (MIBK) is 1: 1 to 3: 1.Select above-mentioned solvent or its combination, can effectively control the temperature of reaction of monomer, reduce reaction system viscosity, it is fully reacted.Solvent also can be selected the combination of vinyl acetic monomer or N-BUTYL ACETATE or vinyl acetic monomer and toluene, or N-BUTYL ACETATE and two kinds of components of toluene are formulated.
As preferably, above-mentioned a kind of blocking film is with the preparation method of weathering resistance resin, and described vinylformic acid hard monomer comprises any in methyl methacrylate or β-dimethyl-aminoethylmethacrylate or the vinylbenzene.
As preferably, above-mentioned a kind of blocking film preparation method of weathering resistance resin, described vinylformic acid hard monomer is that the formulated in combination of methyl methacrylate and two kinds of components of β-dimethyl-aminoethylmethacrylate forms, and the weight ratio of the formulated in combination of described methyl methacrylate and two kinds of components of β-dimethyl-aminoethylmethacrylate is 4: 1 to 7: 1.
As preferably, above-mentioned a kind of blocking film preparation method of weathering resistance resin, described vinylformic acid hard monomer is that the formulated in combination of methyl methacrylate and two kinds of components of vinylbenzene forms, and the weight ratio of the formulated in combination of described methyl methacrylate and two kinds of components of vinylbenzene is 10:1 to 15:1.
Select aforesaid propylene acid hard monomer or its combination, can make the weathering resistance of resin, anti-deformation behavior, solvent resistance better.
As preferably, above-mentioned a kind of blocking film preparation method of weathering resistance resin, described vinylformic acid soft monomer is that the formulated in combination of any or any two component in butyl methacrylate or methyl acrylate or the vinyl acetate forms, the weight ratio of the formulated in combination of described butyl methacrylate and two kinds of components of methyl acrylate is 3:1 to 5:1, the weight ratio of the formulated in combination of described butyl methacrylate and two kinds of components of vinyl acetate is 5:1 to 8:1, and the weight ratio of the formulated in combination of described methyl acrylate and two kinds of components of vinyl acetate is 4:3 to 7:3.Select the aching and limp monomer of aforesaid propylene or its combination, can make the snappiness of resin, ductility better, improve simultaneously its attachment fastness.
A kind of blocking film weathering resistance resin prepares gained by above-mentioned any blocking film with the preparation method of weathering resistance resin.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but they are not limitations of the present invention:
Embodiment 1
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.0135 part of initiator, preparation process is as follows:
(1) takes by weighing vinylformic acid hard monomer and the vinylformic acid soft monomer of above-mentioned weight ratio, all mix;
(2) take by weighing 40% of the total monomer weight that mixed in the above-mentioned steps (1), take by weighing above-mentioned weight of solvent than 30% of total amount, mix, enter reactor and be heated to backflow;
(3) take by weighing above-mentioned weight of solvent than total amount 40%, take by weighing above-mentioned initiator weight ratio total amount 70% with after step (2) takes by weighing whole monomers of remainder mix, be added drop-wise in the described reactor of step (2), time for adding is 1-1.5 hour, keeps the reflux state insulation reaction after being added dropwise to complete 1-2 hour again;
(4) take by weighing weight of solvent than 30% of total amount, with will after above-mentioned steps (3) take by weighing, mix by whole initiators of remainder, be added drop-wise in the described reactor of step (3), time for adding is 0.5-1 hour, keeps the reflux state insulation reaction after being added dropwise to complete 2-3 hour again;
(5) cooling discharging namely gets a kind of blocking film weathering resistance resin.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 2
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 9 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.066 part of initiator.
Solvent is the combination of toluene and methyl iso-butyl ketone (MIBK), and two kinds of component weight ratios are controlled at 1:1 to 3:1 and prepare.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 3
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 9 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.066 part of initiator.
The vinylformic acid hard monomer is that the formulated in combination of methyl methacrylate and two kinds of components of β-dimethyl-aminoethylmethacrylate forms, and the weight ratio of the formulated in combination of described methyl methacrylate and two kinds of components of β-dimethyl-aminoethylmethacrylate is controlled at 4:1 to 7:1.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 4
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.0135 part of initiator.
The vinylformic acid hard monomer is that the formulated in combination of methyl methacrylate and two kinds of components of vinylbenzene forms, and the weight ratio of the formulated in combination of described methyl methacrylate and two kinds of components of vinylbenzene is controlled at 10:1 to 15:1.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 5
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
22 parts of vinylformic acid hard monomers, 7 parts of vinylformic acid soft monomers, 70 parts of solvents, 0.0135 part of initiator.
The vinylformic acid soft monomer is that the formulated in combination of butyl methacrylate and two kinds of components of methyl acrylate forms, and the weight ratio of the formulated in combination of described butyl methacrylate and two kinds of components of methyl acrylate is controlled at 3:1 to 5:1.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
Embodiment 6
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
23 parts of vinylformic acid hard monomers, 8 parts of vinylformic acid soft monomers, 71 parts of solvents, 0.04 part of initiator.
The vinylformic acid soft monomer is that the formulated in combination of butyl methacrylate and two kinds of components of vinyl acetate forms, and the weight ratio of the formulated in combination of described butyl methacrylate and two kinds of components of vinyl acetate is controlled at 5:1 to 8:1.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
Embodiment 7
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.066 part of initiator.
The vinylformic acid soft monomer is that the formulated in combination of methyl acrylate and two kinds of components of vinyl acetate forms, and the weight ratio of the formulated in combination of described methyl acrylate and two kinds of components of vinyl acetate is controlled at 4:3 to 7:3.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
Embodiment 8
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 9 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.066 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 9
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 9 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.02 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 10
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.0135 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 11
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 9 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.0135 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 12
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.066 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 13
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
21 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 73 parts of solvents, 0.015 part of initiator.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid hard monomer is preferably selected methyl methacrylate or β-dimethyl-aminoethylmethacrylate or vinylbenzene.
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
Embodiment 14
A kind of blocking film preparation method of weathering resistance resin comprises the composition preparation of following weight proportion:
24 parts of vinylformic acid hard monomers, 6 parts of vinylformic acid soft monomers, 67 parts of solvents, 0.06 part of initiator.
The vinylformic acid hard monomer is that the formulated in combination of methyl methacrylate and two kinds of components of vinylbenzene forms, and the weight ratio of the formulated in combination of described methyl methacrylate and two kinds of components of vinylbenzene is controlled at 10:1 to 15:1.
The proportioning of other component and implementation step are with above-mentioned embodiment 1.
Initiator is preferably benzoyl peroxide.
Solvent is preferably selected toluene or methyl iso-butyl ketone (MIBK).
The vinylformic acid soft monomer is preferably selected butyl methacrylate or methyl acrylate or vinyl acetate.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of doing according to the scope of the present patent application patent change and modify, and all should belong to covering scope of the present invention.