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A kind of environment-friendly TPR eraser with antibacterial and antibacterial function and preparation technology thereof

A preparation process and eraser technology, which is applied in the field of fine chemicals, can solve the problems of affecting the cleanliness of erasers, the texture of erasers is hard, and it is not easy to recycle, so as to reduce the content of harmful substances such as heavy metals, improve protection, and solve toxic and harmful substances. The effect of the ingredients

Active Publication Date: 2020-11-20
LISHUI ZHUOYUE STATIONERY MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gained eraser texture is harder, wiping is poor, and the dirt of handwriting is easy to be attached on the eraser and influences the cleanliness of eraser; In addition, this kind of eraser is not easy to reclaim because of vulcanization

Method used

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  • A kind of environment-friendly TPR eraser with antibacterial and antibacterial function and preparation technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of preparation technology of the environment-friendly TPR eraser with bacteriostasis and antibacterial function, concrete steps are as follows:

[0044] (1) Ethyl orthosilicate was added to the reaction kettle, and SBS4412, SBS4452, and SBS1401 were added to the reaction kettle filled with ethyl orthosilicate, swelled for 48 hours, stirred and heated to 110°C, and acrylic acid was added dropwise at a constant speed for 30 minutes. After the dropwise addition, the stirring was continued for 2 hours, filtered, and the solid was modified by microwave to obtain a modified SBS mixture;

[0045] (2) Mix and stir the modified SBS mixture obtained in step (1) with modified diatom ooze, quaternary ammonium salt bactericide, and zinc stearate evenly, then add white oil, stir thoroughly to obtain a mixture, and soak for 10 hours ,spare;

[0046] (3) Pour the mixture soaked in step (2) into the reaction kettle, stir and heat up to 110°C, the mixture is in a colloidal long-d...

Embodiment 2

[0059] A kind of preparation technology of the environment-friendly TPR eraser with bacteriostasis and antibacterial function, concrete steps are as follows:

[0060] (1) Ethyl orthosilicate was added to the reaction kettle, and SBS4412, SBS4452, and SBS1401 were added to the reaction kettle filled with ethyl orthosilicate, swelled for 72 hours, stirred and heated to 120°C, and acrylic acid was added dropwise at a constant speed for 40 minutes. After the dropwise addition, the stirring was continued for 3 hours, filtered, and the solid was modified by microwave to obtain a modified SBS mixture;

[0061] (2) Mix and stir the modified SBS mixture obtained in step (1) with modified diatom ooze, quaternary ammonium salt bactericide, and zinc stearate, then add white oil, stir thoroughly to obtain a mixture, and soak for 15 hours ,spare;

[0062] (3) Pour the mixture soaked in step (2) into the reaction kettle, stir and heat up to 120°C, the mixture is in a colloidal long-drawn st...

Embodiment 3

[0075] A kind of preparation technology of the environment-friendly TPR eraser with bacteriostasis and antibacterial function, concrete steps are as follows:

[0076] (1) Add ethyl orthosilicate into the reaction kettle, add SBS4412, SBS4452, and SBS1401 into the reaction kettle filled with ethyl orthosilicate, swell for 50 hours, stir and heat up to 115°C, add acrylic acid dropwise at a constant speed for 35 minutes, After the dropwise addition, the stirring was continued for 3 hours, filtered, and the solid was modified by microwave to obtain a modified SBS mixture;

[0077] (2) Mix and stir the modified SBS mixture obtained in step (1) with modified diatom ooze, quaternary ammonium salt bactericide, and zinc stearate evenly, then add white oil, stir thoroughly to obtain a mixture, and soak for 12 hours ,spare;

[0078] (3) Pour the mixture soaked in step (2) into the reaction kettle, stir and heat up to 115°C, the mixture is in a colloidal long-drawn state, add calcium car...

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Abstract

The invention discloses an environment-friendly TPR eraser with bacteriostatic and antibacterial functions and a preparation technology of the environment-friendly TPR eraser. The environment-friendlyTPR eraser is prepared from the raw materials such as SBS4412, SBS4452, SBS1401, quaternary ammonium salt bactericide, halo amino bactericide, modified diatom mud, zinc stearate, mineral oil, and calcium carbonate. According to the environment-friendly TPR eraser with the bacteriostatic and antibacterial functions and the preparation technology of the environment-friendly TPR eraser, the preparation technological process is improved, the obtained eraser has the advantage of high decontamination, is safe and environmental friendly, and has the bacteriostatic and antibacterial effects.

Description

technical field [0001] The invention relates to an eraser, in particular to an environment-friendly TPR eraser with antibacterial and antibacterial functions and a preparation process thereof. It belongs to the field of fine chemical technology. Background technique [0002] An eraser is a very common stationery used to erase erroneous handwriting. Common eraser is to be main raw material to make by natural rubber or soft polyvinyl chloride. [0003] The eraser with soft polyvinyl chloride as raw material is obtained by mixing PVC powder, dioctyl phthalate (DOP), calcium carbonate and stabilizer, gelling and extruding under appropriate conditions. The obtained eraser material is relatively soft, and the wiping property is better than that of natural rubber as a raw material, but has some disadvantages in environmental protection. In particular, DOP is used as a plasticizer in the eraser manufacturing process, and it has been confirmed that it can cause liver tissue lesion...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08K9/04C08K9/02C08K7/26C08K5/098C08K3/26C08K5/19C08K5/3445
CPCC08K2003/265C08L53/02C08L2205/025C08K9/08C08K9/02C08K7/26C08K5/098C08K3/26C08K5/19C08K5/3445
Inventor 罗乐平
Owner LISHUI ZHUOYUE STATIONERY MFR
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