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Terpene resin modified acrylic resin for polypropylene plastics and preparation method of terpene resin modified acrylic resin

A technology of acrylic resin and polypropylene plastic, applied in the direction of coating, etc., can solve the problems of poor light stability of acrylic resin and poor adhesion of acrylic resin coating, and achieve good orientation of aluminum powder, good adhesion, and improved adhesion Effect

Active Publication Date: 2014-12-10
江苏三木化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above review of the prior art, the technical problems to be solved by the present invention are: the adhesion of the acrylic resin paint on the surface of polypropylene plastic is not good; the light stability of the acrylic resin modified by chlorinated polyacrylic acid is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The preparation of the acrylic resin modified by embodiment 1 terpene resin

[0016] The composition of each raw material is shown in Table 1

[0017] Each raw material composition in the embodiment 1 of table 1

[0018] components

Weight (g)

toluene

30

Butyl acetate

20

Methyl methacrylate

15

Butyl methacrylate

19

Styrene

5

Hydroxypropyl Acrylate

5

Terpene resin

5

Azobisisobutyronitrile

1

[0019] The preparation process is as follows:

[0020] S1: put toluene and butyl acetate into the reaction kettle, and heat to reflux state;

[0021] S2: Add a mixture of methyl methacrylate, butyl methacrylate, styrene, hydroxypropyl acrylate and azobisisobutyronitrile dropwise into the reactor, and the titration time is controlled at 3.5h;

[0022] S3: After the dropwise addition, continue to keep warm for 2 hours, lower the temperature to 90°C and add terpene resin, stir ...

Embodiment 2

[0023] Preparation of the acrylic resin modified by embodiment 2 terpene resin

[0024] The composition of each raw material is shown in Table 2

[0025] Each raw material composition in the embodiment 2 of table 2

[0026] components

Weight (g)

toluene

40

Butyl acetate

10

Methyl methacrylate

20

Butyl methacrylate

15

Styrene

3

Hydroxypropyl Acrylate

3

Terpene resin

9.5

Azobisisobutyronitrile

0.5

[0027] The preparation process is as follows:

[0028] S1: put toluene and butyl acetate into the reaction kettle, and heat to reflux state;

[0029] S2: Add a mixture of methyl methacrylate, butyl methacrylate, styrene, hydroxypropyl acrylate and azobisisobutyronitrile dropwise into the reactor, and the titration time is controlled at 3.5h;

[0030] S3: After the dropwise addition, continue to keep warm for 2 hours, lower the temperature to 90°C and add terpene resin, stir ...

Embodiment 3

[0031] Preparation of the acrylic resin modified by embodiment 3 terpene resin

[0032] The composition of each raw material is shown in Table 3

[0033] Each raw material composition in the embodiment 3 of table 3

[0034] components

Weight (g)

toluene

50

Methyl methacrylate

15

Butyl methacrylate

15

Styrene

5

Hydroxypropyl Acrylate

5

Terpene resin

9.5

Dibenzoyl peroxide

0.5

[0035] The preparation process is as follows:

[0036] S1: Put toluene into the reactor and heat to reflux state;

[0037] S2: Add a mixture of methyl methacrylate, butyl methacrylate, styrene, hydroxypropyl acrylate and dibenzoyl peroxide dropwise into the reactor, and the titration time is controlled within 4 hours;

[0038] S3: After the dropwise addition, continue to keep warm for 2.5 hours, lower the temperature to 100° C., add terpene resin, stir for 45 minutes, and filter out the material. The filtr...

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Abstract

The invention provides terpene resin modified acrylic resin for polypropylene plastics and a preparation method of the terpene resin modified acrylic resin, belonging to the technical field of high polymer materials. The terpene resin modified acrylic resin is prepared by taking 15-20% by weight of butyl methacrylate, 15-20% by weight of methyl methacrylate, 3-10% by weight of styrene, 5-10% by weight of terpene resin, 3-5% by weight of hydroxypropyl acrylate, 0.5-1% by weight of initiator and 50% by weight of organic solvent as raw materials. The preparation method comprises the steps of: dropping butyl methacrylate, methyl methacrylate, hydroxypropyl acrylate, styrene and an initiator into the organic solvent; conducting thermal insulation; and adding the terpene resin, stirring and filtering. According to the terpene resin modified acrylic resin, the surface drying time is less than 20 minutes, the gloss degree is more than 85, the adhesive force reaches up to be one level, the hardness is H, and the terpene resin modified acrylic resin is superior to paint prepared by the traditional chlorinated polypropylene modified resin.

Description

technical field [0001] The invention provides an acrylic resin modified with terpene resin for polypropylene plastic, which belongs to the technical field of polymer materials. Background technique [0002] Thermoplastic acrylic resin can be melted and dissolved in an appropriate solvent. The coating prepared from it is formed by the aggregation of macromolecules after the solvent volatilizes. There is no cross-linking reaction during film formation, and it is a non-reactive coating. In order to achieve better physical and chemical properties, the molecular weight of the resin should be increased, but in order to ensure that the solid content is not too low and the molecular weight cannot be too large, the physical and chemical properties and construction performance are generally balanced at tens of thousands. [0003] Polypropylene plastics are widely used in automobile bumpers and other fields. Due to the relatively low surface energy of polypropylene plastics, ordinary a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F277/00C08F220/18C08F220/14C08F212/08C08F220/28C09D151/06
Inventor 宋坤忠薛正彪
Owner 江苏三木化工股份有限公司
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