A kind of polyester resin for glass base material coating and its preparation method and coating

A technology of polyester resin and glass substrate, applied in polyester coatings, coatings, etc., can solve the problem of large demand for silicone intermediates, achieve excellent adhesion, reduce the degree of phase separation, and increase the effect of adhesion

Active Publication Date: 2021-05-25
中瀚新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the invention patent with application number 2017102645635 discloses a silicone-modified polyester resin. The multi-component organic acid, polyhydric alcohol, and silicone intermediate are reacted under the action of a catalyst to obtain a silicone-modified polyester resin, which makes the silicone Distributed on the structure of polyester resin, it can effectively enhance the adhesion and high temperature resistance of polyester resin, but it can only be modified by adding fixed organic silicon intermediates, and there is a large demand for organic silicon intermediates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: the synthesis of modified polyester resin A

[0036] S1, 83g terephthalic acid, 83g isophthalic acid, 278.6g 2,4:3,5-biscamphor-D-mannitol, 187.5g polyhexamethylene carbonate diol (molecular weight 1000), 92mg Isopropyl titanate is put into the reactor with dropping device;

[0037] S2. Introduce nitrogen to replace the air in the reactor, stir and heat up, and start the reaction at 200°C. At the same time, 37.5g of linear organosilanol (molecular weight 750) is added dropwise, and then the temperature is raised to 240°C-250°C. Finish dripping within 3 hours;

[0038] S3. After the esterification is completed, the polymerization is reduced under reduced pressure at 240°C-270°C, and the reaction is stopped after reaching the end point. Nitrogen gas is introduced to eliminate the vacuum, and the material is extruded.

Embodiment 2

[0039] Embodiment 2: the synthesis of modified polyester resin B

[0040]S1, 133g terephthalic acid, 40g sebacic acid, 239g 2,4:3,5-biscamphor-D-mannitol, 150g polyhexamethylene carbonate diol (molecular weight 500), 102mg iso-titanate Propyl ester is put into the reactor with dripping device;

[0041] S2. Introduce nitrogen to replace the air in the reaction kettle, stir and heat up, and start the reaction at 200°C. At the same time, 75g of linear organosilanol (molecular weight 750) is added dropwise, and then the temperature is raised to 240°C-250°C. Finish dripping within 3 hours;

[0042] S3. After the esterification is completed, the polymerization is reduced under reduced pressure at 240°C-270°C, and the reaction is stopped after reaching the end point. Nitrogen gas is introduced to eliminate the vacuum, and the material is extruded.

Embodiment 3

[0043] Embodiment 3: the synthesis of modified polyester resin C

[0044] S1, 149g isophthalic acid, 20g sebacic acid, 318g 2,4:3,5-biscamphor-D-mannitol, 120g polyhexamethylene carbonate diol (molecular weight 1000), 102mg iso-titanate Propyl ester is put into the reactor with dripping device;

[0045] S2. Introduce nitrogen to replace the air in the reaction kettle, stir and heat up, and start the reaction at 200°C. At the same time, 80g of linear organosilanol (molecular weight: 1000) is added dropwise, and then the temperature is raised to 240°C-250°C. Finish dripping within 3 hours;

[0046] S3. After the esterification is completed, the polymerization is reduced under reduced pressure at 240°C-270°C, and the reaction is stopped after reaching the end point. Nitrogen gas is introduced to eliminate the vacuum, and the material is extruded.

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Abstract

The invention belongs to the technical field of polymer materials, and specifically discloses a polyester resin with high hardness and good wear resistance for glass substrate coating and a preparation method thereof, and also discloses a coating containing the polyester resin , the polyester resin is prepared by reacting dibasic carboxylic acid with 2,4:3,5-biscamphor-D-mannitol, carbonate diol and linear organosilicon alcohol, and the poly The adhesion between ester resin and glass is greatly increased, and the 2,4:3,5-biscamphor-D-mannitol used at the same time can effectively improve the strength and hardness of the resin, making the entire polyester molecular chain elastic, greatly improving its wear resistance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a polyester resin with high hardness and good wear resistance for glass substrate coating, a preparation method thereof, and a coating containing the polyester resin. Background technique [0002] The protective effect of the coating on the substrate is largely affected by the bonding strength between the coating and the substrate. Factors affecting the bonding strength include the surface state of the substrate, the composition of the surface material, and the compactness of the substrate itself. It is related to the surface tension, shrinkage stress, crystallinity and volume size of the polar functional group of the film former in the coating. [0003] Glass coating is a kind of coating, generally refers to the coating based on silicate, which can be stably adhered to the surface of glassware, has different colors, and plays a decorative role on glassware....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/695C08G63/64C09D167/02C03C17/30
CPCC03C17/30C08G63/64C08G63/6956C09D167/02
Inventor 宁珅许峰付静童军
Owner 中瀚新材料科技有限公司
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