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Self-cleaning flexible composite structure writing carrier

A composite structure and self-cleaning technology, applied in the field of materials, can solve the problems of easy damage, large volume, hard to wipe the surface optical effect of whiteboard writing, etc., and achieve the effect of good hydrophilicity and strong scratch resistance

Active Publication Date: 2021-06-22
JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defects of existing whiteboards such as difficult to wipe after long-term writing, poor surface optical effect, high manufacturing cost, large volume, and easy damage, thereby providing a new type of self-cleaning flexible whiteboard. Composite Structure Writing Carrier

Method used

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  • Self-cleaning flexible composite structure writing carrier
  • Self-cleaning flexible composite structure writing carrier
  • Self-cleaning flexible composite structure writing carrier

Examples

Experimental program
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Effect test

Embodiment 1

[0055] This embodiment provides a self-cleaning flexible composite structure writing carrier, such as figure 1 As shown, the self-cleaning layer 1 , the optical composite layer 2 , the adsorption layer 3 and the whiteboard 4 are sequentially stacked.

[0056] Such as figure 1 As shown, the self-cleaning layer 1 includes a top coat 11 and an undercoat 12 , and the undercoat 12 is disposed on the surface of the top coat 11 facing the optical composite layer 2 .

[0057] The top coat 11 includes the following raw materials in parts by weight: 65 parts of water-based resin, 3 parts of modified nano-silica, 4.5 parts of glyceryl tristearate, 5 parts of silane coupling agent, and 65 parts of water-based curing agent.

[0058] Wherein, the above-mentioned water-based resin is made of monomers of 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, butyl acrylate, 4-hydroxybutyl acrylate and styrene in a molar ratio of 10:6:6:3: 15 copolymerized.

[0059] The above-mentioned modifi...

Embodiment 2

[0076] This embodiment provides a writing carrier with a self-cleaning flexible composite structure, which includes a self-cleaning layer 1 , an optical composite layer 2 , an adsorption layer 3 and a whiteboard 4 which are sequentially stacked.

[0077] The self-cleaning layer 1 includes a top coat 11 and an undercoat 12 , and the undercoat 12 is disposed on the surface of the top coat 11 facing the optical composite layer 2 .

[0078] The top coat 11 includes the following raw materials in parts by weight: 60 parts of water-based resin, 1 part of modified nano-silica, 1 part of glyceryl tristearate, 2 parts of silane coupling agent, and 50 parts of water-based curing agent.

[0079] Wherein, the above-mentioned water-based resin is made of monomers of 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, butyl acrylate, 4-hydroxybutyl acrylate and styrene in a molar ratio of 8:4:2:1: 10 copolymerized.

[0080] The above-mentioned modified nano silicon dioxide is silicon diox...

Embodiment 3

[0097] This embodiment provides a writing carrier with a self-cleaning flexible composite structure, which includes a self-cleaning layer 1 , an optical composite layer 2 , an adsorption layer 3 and a whiteboard 4 which are sequentially stacked.

[0098] The self-cleaning layer 1 includes a top coat 11 and an undercoat 12 , and the undercoat 12 is disposed on the surface of the top coat 11 facing the optical composite layer 2 .

[0099] The top coat 11 includes the following raw materials in parts by weight: 80 parts of water-based resin, 5 parts of modified nano-silica, 8 parts of glyceryl tristearate, 8 parts of silane coupling agent, and 80 parts of water-based curing agent.

[0100] Wherein, the above-mentioned water-based resin is made of monomers of 2-hydroxyethyl methacrylate, hydroxypropyl acrylate, butyl acrylate, 4-hydroxybutyl acrylate and styrene in a molar ratio of 12:8:10:5: 20 copolymerization.

[0101] The above-mentioned modified nano silicon dioxide is silic...

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Abstract

The invention belongs to the field of material technology, and specifically relates to a self-cleaning flexible composite structure writing carrier. The self-cleaning flexible composite structure writing carrier provided by the present invention includes a self-cleaning layer, an optical composite layer and an adsorption layer that are stacked in sequence. The self-cleaning layer includes a top coating and a bottom coating. The writing carrier with this structure has a hydrophilic topcoat on the outermost surface and a hydrophobic and oleophobic undercoat on the inside of the topcoat. The undercoat can continuously push ink or other oils to the topcoat. The surface can be cleaned with water to remove ink or other oil stains without any residue. It has a strong self-cleaning function and effectively avoids the defects of conventional whiteboards that are difficult to wipe or leave dark spots after long-term wiping.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a self-cleaning flexible composite structure writing carrier. Background technique [0002] In traditional teaching, scientific research, factories and business meetings, people usually use blackboards as writing carriers, but blackboards are only suitable for writing with chalk, and there is a lot of dust when writing and erasing, which affects people's health and the writing environment. For this reason, people have developed a variety of dust-free writing carriers, and whiteboards are currently the most widely used dust-free writing carriers. The whiteboard is a writing board specially designed for writing with whiteboard pens. Its characteristic is that the ink marks on the whiteboard can be wiped off, and no dust will be generated during the wiping process. [0003] The traditional whiteboard is prepared by spraying white paint or plastic powder on the surface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B33/00B32B7/12C09D175/04C09D7/62C09D7/63C09D133/04C09D7/61C09D5/00
CPCB32B7/12B32B27/36B32B33/00B32B2255/10B32B2255/26C08K2003/2227C08K2201/011C09D5/002C09D133/04C09D175/04C09D7/61C09D7/62C09D7/63C08K9/04C08K3/36C08K5/103C08L33/16C08L77/00C08K3/00C08K3/22
Inventor 金闯张庆杰
Owner JIANGSU SIDIKE NEW MATERIALS SCI & TECH CO LTD
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