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Aminated silicon dioxide, thermosetting hardening coating for transfer film and preparation methods

A silicon dioxide and amination technology, applied in the fields of silicon dioxide, chemical instruments and methods, silicon oxide, etc., can solve problems such as poor wear resistance of decorative layers, achieve good protection, reduce production costs, and simplify processes The effect of the process

Active Publication Date: 2020-07-10
FOSHAN JIAEN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a kind of aminated silicon dioxide and a thermally cured coating for transfer film and its preparation method, aiming to solve the problem of the durability of the decorative layer in the existing transfer film. The problem of poor abrasiveness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Preparation of aminated silica:

[0051] Step (1): Add TEOS and absolute ethanol into a 500mL four-neck flask, heat up to 55°C, then add an appropriate amount of ammonia, water and absolute ethanol, and continue the reaction for 8 hours to obtain an alcohol sol of silica . Among them, the mass ratio of TEOS and absolute ethanol is 1:1.5; the mass ratio of ammonia water, water and absolute ethanol is 1:0.8:0.7.

[0052] Step (2): APS, MTES and TEOS were sequentially added to the prepared silica alcohol sol, and stirred and reacted at 50° C. for 8 hours to obtain an aminated silica sol. Wherein, the mass ratio of the silica alcohol sol, aminopropyltriethoxysilane, methyltriethoxysilane and ethyl orthosilicate is 1:1.3:1:0.6.

[0053] Step (3): Separate the prepared aminated silica sol particles from the sol with a centrifuge at a rotational speed of 10,000rpm, and then disperse the separated silica particles into acetone, and utilize the dissolution of acetone Dissolve...

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Abstract

The invention discloses aminated silicon dioxide, thermosetting hardening coating for a transfer film and preparation methods. The aminated silicon dioxide is modified silicon dioxide particles whichare prepared by hydrolytic polycondensation of tetraethoxysilane and modification with siloxane such as aminopropyltriethoxysilane and methyltriethoxysilane. The thermosetting hardening coating for the transfer film comprises novolac epoxy resin, the aminated silicon dioxide, a dicyandiamide curing agent, an epoxy curing accelerator and an organic solvent. A cured hardened coating has excellent hardness, wear resistance and heat resistance, and can well protect the decorative pattern layer in the transfer film.

Description

technical field [0001] The invention relates to the field of polymer coatings, and mainly relates to an aminated silicon dioxide, a thermosetting hardening coating used for a transfer film and a preparation method. Background technique [0002] The transfer film is a medium material of the transfer printing process. The transfer printing decoration process is the process of transferring the decorative pattern on the thermal transfer film to the surface of the substrate to form a high-quality decorative mask. During the transfer printing process, the protection layer and the decorative layer are separated from the base material by the joint action of heat and pressure, and the hot melt adhesive makes the entire decorative layer and the substrate permanently bonded. The decorative layer is transferred on the surface of the substrate to form a beautiful pattern, which has a good decorative effect, but has poor wear resistance, and the original pattern is easily lost due to abra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12C01B33/145C09D163/00C09D7/63
CPCC01B33/12C01B33/145C09D163/00C09D7/63C08K9/06C08K3/36
Inventor 白永平宋攀可张春刘文文张建军程宝强
Owner FOSHAN JIAEN NEW MATERIALS CO LTD