A kind of easy-to-wipe portable blackboard film and preparation method thereof

A portable and blackboard technology, applied in coating and other directions, can solve the problems of portable blackboards that are prone to paint peeling, cannot be separated from brackets, and are not easy to dry. rubbing effect

Active Publication Date: 2017-10-17
钱龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But the portable blackboard of above-mentioned report has the following deficiencies: 1, although this device can be disassembled and assembled, in actual use, be unable to do without support, and the volume of support itself, weight are bigger, and practical application is also inconvenient to carry
2. Most of the black or dark green paints painted on the surface of the canvas are mainly solvent-based phenolic and nitro-based paints. At the same time, many organic volatile substances are added. Long-term use is harmful to the human body
3. With the increase of use time, the portable blackboard is prone to paint peeling and difficult to dry.

Method used

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  • A kind of easy-to-wipe portable blackboard film and preparation method thereof
  • A kind of easy-to-wipe portable blackboard film and preparation method thereof
  • A kind of easy-to-wipe portable blackboard film and preparation method thereof

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preparation example Construction

[0027] Correspondingly, the present invention also provides a preparation method of an easy-to-wipe portable blackboard film, comprising the following steps: mixing 10-30 parts by weight of deionized water and 10-20 parts by weight of additives, and adding 20-40 parts by weight of Pigment, 1-2 parts by weight of polyethylene glycol and 1-5 parts by weight of sodium lauryl sulfate, and then add 50-100 parts by weight of water-based acrylate to form a mixture; add 0.5-2.5 parts by weight of graphite to the mixture in sequence Powder, 1-10 parts by weight of nano titanium dioxide, 5-15 parts by weight of hydroxypropyl methylcellulose, 3-15 parts by weight of talc, 0.1-2 parts by weight of adhesion promoter, 0.2-4 parts by weight of crosslinking agent, 0.2-3 parts by weight of leveling agent, 0.3-4 parts by weight of wetting agent and 0.3-2 parts by weight of thickener are stirred to form a coating; the coating is applied to the surface of the substrate and dried to form an easy-to...

Embodiment 1

[0047] According to the weight of raw materials shown in Table 1, add deionized water and additives into the dispersion tank, stir evenly, add pigments and fillers, polyethylene glycol and sodium lauryl sulfate to mix and disperse, and then add water-based acrylate Mix well to form a mixture, add graphite powder, nano-titanium dioxide, hydroxypropyl methylcellulose, talcum powder, adhesion promoter, crosslinking agent, leveling agent, wetting agent, thickener to the mixture in turn and mix well , Stir evenly to make a coating with a predetermined viscosity.

[0048] Put the PP material in an oven and dry it at 100°C for 12 hours, put iron oxide magnetic powder, carbon black, glass fiber, phenyl o-hydroxybenzoate and dibutyl hydroxytoluene in the oven, and dry it at 80°C for 6 After drying, put PP, iron oxide magnetic powder, carbon black, glass fiber, phenyl o-hydroxybenzoate and dibutyl hydroxytoluene into the agitator, stir at 800r / h for 40min to fully mix, and mix evenly P...

Embodiment 2

[0051] According to the weight of raw materials shown in Table 1, add deionized water and additives into the dispersion tank, stir evenly, add pigments and fillers, polyethylene glycol and sodium lauryl sulfate to mix and disperse, and then add water-based acrylate Mix well to form a mixture, add graphite powder, nano-titanium dioxide, hydroxypropyl methylcellulose, talcum powder, adhesion promoter, crosslinking agent, leveling agent, wetting agent, thickener to the mixture in turn and mix well , Stir evenly to make a coating with a predetermined viscosity.

[0052] Put the PP material in an oven and dry it at 100°C for 12 hours, then add strontium-iron oxide magnetic powder, carbon black, glass fiber, 2-hydroxy-4-n-octyloxybenzophenone and tert-butyl terephthalate Phenol was placed in an oven and dried at 80°C for 6 hours. After drying, PP, strontium-iron oxide magnetic powder, carbon black, glass fiber, 2-hydroxy-4-n-octyloxybenzophenone and tert-butyl p- Put hydroquinone i...

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Abstract

The invention provides a portable blackboard film base material, a wipe-easy portable blackboard film and a preparation method of the wipe-easy portable blackboard film. The wipe-easy portable blackboard film is prepared form the following raw materials: water-based acrylate, pigment filler, an assistant, hydroxypropyl methyl cellulose, polyethylene glycol, graphite powder, nanometer titania, lauryl sodium sulfate, talcum powder, deionized water, a flatting agent, a wetting agent, a thickening agent, an adhesion promoter and a cross-linking agent. The water-based acrylate is used as film-forming resin, the crosslinking density is improved, and the water resistance, the adhesive force and the strength of the film are improved. In addition, the water-based acrylate is a polar material, the ingredient of ink of a white marking pen is weak polar resin, and then written note is convenient to wipe. The nanometer titania and the talcum powder form smooth paint face under action of water-based polyethylene glycol and surfactant lauryl sodium sulfate. In this way, the prepared portable blackboard film is easy to wipe, convenient to carry, safe and environmentally friendly and can be used repeatedly.

Description

technical field [0001] The invention relates to the technical field of film materials, in particular to an easy-to-wipe portable blackboard film and a preparation method thereof. Background technique [0002] Blackboard is an important carrier of knowledge dissemination. It has experienced development stages such as wood board, cement board, terrazzo glass board, and composite material board. It has witnessed the development of education and made great contributions to the dissemination of human knowledge and popularization of education. Nowadays, the types of blackboards have also become more complex and diverse. In terms of color, there are blackboards and whiteboards; in terms of structure, there are bracket whiteboards, lifting blackboards and magnetic blackboards; display boards etc. [0003] The Chinese patent document with the application number 201210277820.6 reports a portable blackboard, including: a pillar, a blackboard, a suspension rod, and a foot. The blackboa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/02C09D4/06C09D7/12C08J7/04C08L101/00
Inventor 钱龙
Owner 钱龙
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