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A kind of organosilicon wear-resistant and hardened coating and preparation method thereof

A technology of hard coating and silicone, applied in the field of silicone wear-resistant hard coating and its preparation, can solve the problems of high preparation cost of acrylic resin system, reducing the transparent effect of plastic surface coating, incapability of popularization and application, and the like, To achieve the effect of strong appearance, good protection and low application cost

Active Publication Date: 2017-06-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One of the purposes of the present invention is to provide an epoxy acrylic resin type transparent wear-resistant coating to overcome the poor adhesion of the existing coatings on the market to organic plastic surfaces, poor environmental protection and the high cost of preparation of acrylic resin systems that cannot be popularized At the same time, it also solves the problem of reducing the transparent effect of the plastic surface coating due to the poor compatibility of the two when using a conventional acrylic resin system for transparent coating on the surface of organic plastics.

Method used

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  • A kind of organosilicon wear-resistant and hardened coating and preparation method thereof
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  • A kind of organosilicon wear-resistant and hardened coating and preparation method thereof

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Effect test

Embodiment 1

[0022] A silicone wear-resistant hard coating. The first is the preparation of the coating: 90 parts by weight of bisphenol A type epoxy acrylic resin (E03 type epoxy resin and acrylic acid are mixed uniformly in a molar ratio of 1:2, and triphenylphosphine is added as a catalyst. The weight of the catalyst is bisphenol A type 0.2% of the total weight of epoxy resin and acrylic acid, react 4h under the condition of 80 ℃ to obtain bisphenol A type epoxy acrylic resin); KH-570 silane coupling agent (γ-methacryloxypropyl trimethoxy silane) 10 parts by weight. The second is the surface pretreatment of the substrate: cut the plexiglass (PMMA) plate into: 6×6cm 2 specifications, followed by NaOH / Na 2 CO 3 Alkaline cleaning-ultrasonic vibration cleaning-distilled water and absolute ethanol alternate cleaning-isopropanol drying, drying for later use. Finally, 90 parts by weight of bisphenol A type epoxy acrylic resin and 10 parts by weight of KH-570 silane coupling agent are mixed...

Embodiment 2

[0025] A silicone wear-resistant hard coating. The first is the preparation of the coating: 85 parts by weight of bisphenol A type epoxy acrylic resin (E03 type epoxy resin and acrylic acid are mixed uniformly in a molar ratio of 1:2, and triphenylphosphine is added as a catalyst. The weight of the catalyst is bisphenol A type 0.2% of the total weight of epoxy resin and acrylic acid, react 4h under the condition of 80 ℃ to obtain bisphenol A type epoxy acrylic resin); KH-570 silane coupling agent (γ-methacryloxypropyl trimethoxy silane) 15 parts by weight. The second is the surface pretreatment of the substrate: cut the plexiglass (PMMA) plate into: 6×6cm 2 specifications, followed by NaOH / Na 2 CO 3 Alkaline cleaning-ultrasonic vibration cleaning-distilled water and absolute ethanol alternate cleaning-isopropanol drying, drying for later use. Finally, 85 parts by weight of bisphenol A type epoxy acrylic resin and 15 parts by weight of KH-570 silane coupling agent are mixed...

Embodiment 3

[0028] A silicone wear-resistant hard coating. The first is the preparation of the coating: 80 parts by weight of bisphenol A type epoxy acrylic resin (E03 type epoxy resin and acrylic acid are mixed uniformly in a molar ratio of 1:2, and triphenylphosphine is added as a catalyst. The weight of the catalyst is bisphenol A type 0.2% of the total weight of epoxy resin and acrylic acid, react 4h under the condition of 80 ℃ to obtain bisphenol A type epoxy acrylic resin); KH-570 silane coupling agent (γ-methacryloxypropyl trimethoxy silane) 20 parts by weight. The second is the surface pretreatment of the substrate: cut the plexiglass (PMMA) plate into: 6×6cm 2 specifications, followed by NaOH / Na 2 CO 3 Alkaline cleaning-ultrasonic vibration cleaning-distilled water and absolute ethanol alternate cleaning-isopropanol drying, drying for later use. Finally, 80 parts by weight of bisphenol A type epoxy acrylic resin and 20 parts by weight of KH-570 silane coupling agent are mixed...

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Abstract

The invention discloses an organosilicone wear-resisting hardened coating and a preparation method thereof. The coating is composed of, by weight, 80-90 parts of epoxy resin, 10-20 parts of silane coupling agents and 0.2 part of initiator. The coating can be prepared in simple equipment through reactions at the room temperature and is easy to transport and store, and the purposes of simplifying the production technology, and reducing energy consumption and equipment investment are achieved; the prepared coating has the advantages of being high in hardness and wear resistance and capable of existing stably for a long time at the room temperature, and when the coating is used for dipcoating transparent plastic substrates like organic glass, the organic glass can be directly dipcoated and solidified without base coating.

Description

technical field [0001] The invention relates to a coating, in particular to a coating suitable for surface protection of plexiglass and other transparent or opaque plastics, as well as anti-corrosion and wear-resistant coatings for metal surfaces, metal plated parts, insulation and moisture-proof coatings for electronic components. Silicone wear-resistant and hardened coatings for layers, weatherproof coatings for stone materials, etc., and preparation methods thereof. Background technique [0002] Compared with optical glass, optical plastics such as polymethyl methacrylate (PMMA) and polycarbonate (PC) not only have many outstanding optical properties, but also have low density and high impact resistance. However, the surface hardness of optical plastics is low, and it is easy to be scratched. During daily use, its optical performance is likely to drop sharply, affecting normal use. Wear-resistant coatings are mostly made of some low-molecular-weight polymers and silane c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/10C09D7/12
Inventor 任鹏飞王立俞豪杰
Owner ZHEJIANG UNIV
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