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An environmentally friendly and durable chalk material

A durable, chalk-based technology, applied in applications, pencil leads, household appliances, etc., can solve problems that endanger health and achieve the effects of less environmental pollution, good weather resistance, and clear writing

Active Publication Date: 2021-09-07
潍坊护理职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides an environmentally friendly and durable chalk material, which overcomes the traditional chalk material that will generate a lot of dust during the writing and erasing process, causing pollution to the surrounding environment and endangering the environment. The technical defects of people's health have the advantages of less environmental pollution, convenient use, simple manufacturing process, low cost, smooth writing, clear handwriting, good storage and transportation stability, safe and environmentally friendly use, and durable advantages

Method used

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  • An environmentally friendly and durable chalk material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An environmentally friendly and durable chalk material, which is made of the following raw materials in parts by weight: 25 parts of titanium dioxide, 5 parts of attapulgite, 1 part of negative ion powder, 1 part of sepiolite powder, 10 parts of clay, 1 part of Chinese medicine extract, N -1 part of (3-triethoxysilylpropyl) glucamide, 1015 parts of epoxy paraffin modified quaternary ammonium salt, 1 part of sodium methylstearyl taurate, 1 part of witch hazel tannin, 7 parts of oleic acid modified vegetable oil, 1 part of glycerin, and 1 part of ethanol.

[0033] The preparation method of the epoxy paraffin modified quaternary ammonium salt-10 comprises the following steps: adding 10 g of epoxy paraffin wax and 1010 g of quaternary ammonium salt to 100 g of xylene, then adding 3 g of sodium carbonate therein, Stir the reaction for 6 hours, then remove the organic solvent by rotary evaporation, wash the product 3 times with water, then wash 3 times with acetone, and final...

Embodiment 2

[0041] An environmentally friendly and durable chalk material, which is made of the following raw materials in parts by weight: 26 parts of titanium dioxide, 6 parts of attapulgite, 2 parts of negative ion powder, 3 parts of sepiolite powder, 12 parts of clay, 2 parts of Chinese medicine extract, N -1 part of (3-triethoxysilylpropyl) glucamide, 1016 parts of epoxy paraffin modified quaternary ammonium salt, 2 parts of sodium methylstearyl taurate, 3 parts of witch hazel tannin, 8 parts of oleic acid modified vegetable oil, 1 part of glycerin, 2 parts of ethanol.

[0042] The preparation method of described epoxy paraffin modified quaternary ammonium salt-10 comprises the steps of: adding epoxy paraffin 15g, quaternary ammonium salt-1010g in chloroform 110g, then adding potassium carbonate 3.5g wherein, at 87 The reaction was stirred at ℃ for 6.5 hours, and then the organic solvent was removed by rotary evaporation, the product was washed 4 times with water, and then washed 3 t...

Embodiment 3

[0050] An environment-friendly and durable chalk material, which is made of the following raw materials in parts by weight: 28 parts of titanium dioxide, 8 parts of attapulgite, 3 parts of negative ion powder, 4 parts of sepiolite powder, 16 parts of clay, 3 parts of Chinese medicine extract, N -2 parts of (3-triethoxysilylpropyl) glucamide, 1018 parts of epoxy paraffin modified quaternary ammonium salt, 3 parts of sodium methylstearyl taurate, 4 parts of witch hazel tannin, 8 parts of oleic acid modified vegetable oil, 2 parts of glycerin, 3 parts of ethanol.

[0051] The preparation method of the epoxy paraffin modified quaternary ammonium salt-10 comprises the following steps: adding 20 g of epoxy paraffin and quaternary ammonium salt-1010 g to 130 g of petroleum ether, then adding 4 g of sodium hydroxide therein, The reaction was stirred for 7 hours, and then the organic solvent was removed by rotary evaporation, the product was washed 4 times with water, and then washed 4...

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Abstract

The invention discloses an environment-friendly and durable chalk material, which is made of the following raw material components in parts by weight: 25-30 parts of titanium dioxide, 5-10 parts of attapulgite, 1-5 parts of negative ion powder, and 1-5 parts of sepiolite powder , 10‑20 parts of clay, 1‑3 parts of traditional Chinese medicine extract, 1‑3 parts of N‑(3‑triethoxysilylpropyl) glucamide, 10 parts of epoxy paraffin modified quaternary ammonium salt‑1015‑20 parts, 1-5 parts of sodium methylstearyl taurate, 1-5 parts of witch hazel tannin, 7-10 parts of oleic acid modified vegetable oil, 1-3 parts of glycerin, and 1-3 parts of ethanol. The invention also discloses a preparation method of the environment-friendly and durable chalk material. The environmentally friendly and durable chalk material prepared by the invention has the advantages of little environmental pollution, convenient use, simple manufacturing process, low cost, smooth writing, clear handwriting, good storage and transportation stability, safe and environmentally friendly use, and durable.

Description

technical field [0001] The invention relates to the technical field of environment-friendly cultural and educational supplies, in particular to an environment-friendly and durable chalk material. Background technique [0002] Chalk is one of the main teaching tools used by students and teachers in schools. It has been used until now. It can make up for the lack of electronic teaching and greatly promote the development of education. It is easy to use, cheap and widely used. [0003] The main component of traditional chalk is air-setting raw materials, which are composed of gypsum, calcium carbonate, talcum powder, water and other materials. This type of chalk will generate a lot of fine dust during use, and these fine dust will fly around, some will fall on the clothes, and some will be inhaled into the body by the surrounding students and teachers, which will not only pollute the surrounding environment but also endanger people. health, because these harmful inhalable par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D13/00
Inventor 许宝娟马占芹李吉昌
Owner 潍坊护理职业学院
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