Preparation method of fluorosilicone acrylate/epoxy resin polymer and application of polymer to protection of surfaces of stone cultural relics

A technology of fluorosilicone acrylate and epoxy resin, applied in the direction of epoxy resin glue, ester copolymer adhesive, adhesive type, etc. secondary damage, poor elasticity of inorganic materials, etc., to achieve good storage stability, excellent water resistance, and good compatibility.

Inactive Publication Date: 2015-12-23
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, inorganic materials have poor elasticity and low permeability, and organic materials have a short lifespan, which may cause secondary damage to stone cultural relics; new materials ar

Method used

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  • Preparation method of fluorosilicone acrylate/epoxy resin polymer and application of polymer to protection of surfaces of stone cultural relics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Add 5mLTEOS, 20mL deionized water and 40mL absolute ethanol into a 250ml three-neck flask, stir and mix evenly, adjust the pH to 3 with hydrochloric acid, stir and react at 30°C for 2h; then raise the temperature to 60°C , add 1.86g of KH-570, and continue to react for 3 hours to obtain KH-570 modified silica sol.

[0033] (2) Add 0.3524g of OP-10, 0.1762g of SDS, and 10g of deionized water in sequence into a 250mL four-necked flask equipped with a stirrer and a reflux condenser, and stir well and evenly. Dissolve 1.92g of E-44 into 1.6g of VAc, then add it into the three-neck flask, add 4.8g of MMA, 25g of BA, 1.28g of MAA and 0.64g of HFBMA into the three-necked flask, at 40°C Stir at high speed and pre-emulsify for 30 minutes to obtain a pre-emulsion.

[0034] (3) Add the remaining compound emulsifier 0.3524g of OP-10, 01762g of SDS and 11g of deionized water into a 250mL four-necked flask equipped with a mechanical stirrer, a reflux condenser, and a thermometer...

Embodiment 2

[0036] (1) Add 5mLTEOS, 20mL deionized water and 40mL absolute ethanol into a 250ml three-neck flask, stir and mix evenly, adjust the pH to 3 with hydrochloric acid, stir and react at 30°C for 2h; then raise the temperature to 60°C , add 1.86g of KH-570, and continue to react for 3 hours to obtain KH-570 modified silica sol.

[0037] (2) In a 250mL four-necked flask equipped with a stirrer and a reflux condenser, add 0.4695g of OP-10, 0.2347g of SDS, and 15g of deionized water in sequence, and stir well. Dissolve 3.2g of E-44 into 6.4g of VAc, then add it into the three-necked flask, add 12.8g of MMA and 8.97g of BA, 0.64g of MAA and 3.2g of HFBMA in the there-necked flask, 45 Stir at high speed at ℃, pre-emulsify for 40 minutes, and obtain a pre-emulsion.

[0038] (3) Add the remaining compound emulsifier 0.4695g of OP-10, 0.2347g of SDS and 18g of deionized water into a 250mL four-necked flask equipped with a mechanical stirrer, a reflux condenser, and a thermometer, and ad...

Embodiment 3

[0040] (1) Add 5mLTEOS, 20mL deionized water and 40mL absolute ethanol into a 250ml three-neck flask, stir and mix evenly, adjust the pH to 3 with hydrochloric acid, stir and react at 30°C for 2h; then raise the temperature to 60°C , add 1.86g of KH-570, and continue to react for 3 hours to obtain KH-570 modified silica sol.

[0041] (2) Add 0.705g of OP-10, 0.3525g of SDS, and 10g of deionized water in sequence into a 250mL four-necked flask equipped with a stirrer and a reflux condenser, and stir well and evenly. The E-44 of 4.8g is dissolved in the VAc of 4.96g, then it is added in the there-necked flask, the MMA of 7.07g and the BA of 15.7g, the HFBMA of the MAA of 0.8g and 1.92g are added in the there-necked flask, 60 Stir at high speed at ℃, pre-emulsify for 60 minutes, and obtain a pre-emulsion.

[0042] (3) Add the remaining compound emulsifier 0.705g of OP-10, 0.3525g of SDS and 11g of deionized water into a 250mL four-necked flask equipped with a mechanical stirrer,...

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Abstract

The invention belongs to the technical field of polymer material synthesis and relates to fluorosilicone polymer synthesis and modification and in particular relates to a preparation method of a fluorosilicone acrylate/epoxy resin polymer and an application of the polymer to protection of the surfaces of stone cultural relics. The composite emulsion with a core-shell structure is prepared by using modified silica sol as a core and epoxy resin (E-44), vinyl acetate (VAc), methyl methacrylate (MMA), n-butyl acrylate (BA) and hexafluorobutyl methacrylate (HFBMA) as shells and is applied to protection of the surfaces of the stone cultural relics. The preparation method disclosed by the invention has the beneficial effects that the preparation method is simple to operate; the obtained material has good storage stability, relatively low viscosity and good compatibility with stone, has excellent water and acid resistance and meets the requirements of stone application indexes; besides, a film of the obtained material has transparent appearance and does not change the original appearances of the cultural relics, thus satisfying the protection principles of not changing the original appearances of the cultural relics and restoring the old as the old.

Description

technical field [0001] The invention belongs to the technical field of polymer material synthesis, and relates to the synthesis and modification of fluorosilicon polymers, in particular to a preparation method of fluorosilicon acrylate / epoxy resin polymer and its application to the sealing and protection of the surface of stone cultural relics. Background technique [0002] Cultural relics are the essence of human culture, the artistic wisdom of our ancestors, and the foundation of the development of modern civilization, which are of extremely important significance. The splendid civilization of the Chinese nation for thousands of years has left us many stone cultural relics and historical sites that have attracted worldwide attention. They are precious resources of our country and priceless cultural heritage that cannot be reproduced. However, most of these stone cultural relics are immovable, so they have been exposed to the natural weathering environment for a long time. ...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L33/08C08F220/18C08F218/08C08F220/14C08F220/06C08F220/22C08F2/26C08F2/30C08F2/44C08K3/36C09J163/00C09J133/08C09J11/04
Inventor 邱凤仙张晓颖陈倩杨冬亚徐吉成
Owner JIANGSU UNIV
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