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Preparation method of environment-friendly PVC three-dimensional modeling eraser

A technology of three-dimensional modeling and eraser, which is applied in the field of daily chemicals, can solve problems such as consumer health problems, large investment in molds, and high labor costs, and achieve the effects of avoiding the use of multiple sets of injection molds, improving production efficiency, and avoiding sterilization

Inactive Publication Date: 2019-08-16
蔡汉鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional three-dimensional eraser is made of thermoplastic rubber, cyclohexanol, calcium carbonate and other raw materials through plasticization and granulation, and the obtained particles are added to the injection molding machine, and each set of molds can only inject a certain color of the three-dimensional eraser. Accessories, eraser accessories of different colors are injection molded by multiple sets of molds, and a complete three-dimensional eraser can be formed by manual assembly, so the mold investment is large and the labor cost is high
Moreover, the plasticizer used in the traditional three-dimensional eraser formula is one of the pathogens of skin contact in modern medicine, which is likely to cause health problems for consumers

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] The specific implementation manner of the present invention will be further described in detail through the description of the implementation examples below.

[0016] The preparation method of environment-friendly PVC three-dimensional modeling eraser of the present invention comprises the following steps:

[0017] A. Take the following raw material formula by weight ratio: 40 parts of dioctyl terephthalate, 10 parts of epoxy soybean oil, 30 parts of polyvinyl chloride resin paste, 15 parts of calcium carbonate, 3 parts of calcium zinc stabilizer, nano talc 2 parts of powder, 0.2 parts of glutaraldehyde fungicide, 0.2 parts of ultraviolet photosensitizer, 2 parts of curing agent;

[0018] B, constant temperature of dioctyl phthalate to 40 °, then add epoxy soybean oil dioctyl terephthalate to fuse, obtain mixed liquid;

[0019] C, move the mixed liquid of step B to a high-speed mixer, add polyvinyl chloride resin paste, calcium zinc stabilizer, nano talcum powder and c...

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Abstract

The invention aims to provide a preparation method of an environment-friendly PVC three-dimensional modeling eraser. Through an improved formula, the preparation method can not only avoid the use of harmful plasticizers under the condition of ensuring high density and sterilization, but also enable materials before molding to be pasty materials, and the materials can be directly put into a plasticdropping machine for dropping modeling and color embellishing and curing, and the environment-friendly PVC three-dimensional modeling eraser can be molded through mold closing, so that the use of multiple sets of injection molds can be avoided, manual assembly cost can be reduced, and production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of daily chemicals, and in particular relates to a preparation method of an environment-friendly PVC three-dimensional modeling eraser. Background technique [0002] Eraser, as one of the commonly used stationery, is constantly improving with the development of technology. At present, the multicolor three-dimensional eraser is welcomed by the market because of its changeable shapes and colors. The traditional three-dimensional eraser is made of thermoplastic rubber, cyclohexanol, calcium carbonate and other raw materials through plasticization and granulation, and the obtained particles are added to the injection molding machine, and each set of molds can only inject a certain color of the three-dimensional eraser. For accessories, eraser accessories of different colors are injection molded through multiple sets of molds, and a complete three-dimensional eraser can only be formed by manual assembly, so the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/00C08K5/12C08K3/26C08K3/34C08K5/07C08K13/02
CPCC08K2003/265C08K2201/011C08L27/06C08L91/00C08K5/12C08K3/26C08K3/34C08K5/07C08K13/02
Inventor 蔡汉鑫
Owner 蔡汉鑫
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