Preparation method of elastic eraser material

A technology of elastic eraser and elastic body, which is applied in the direction of eraser, printing, office supplies, etc., can solve the problems of poor elasticity and fracture of the eraser, and achieve the effect of good cold resistance, low heat generation, and excellent low temperature resistance
CN110054814AInactive Publication Date: 2019-07-26้‚ตๆท‘ๅŽ
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
้‚ตๆท‘ๅŽ
Publication Date
2019-07-26
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a preparation method of an elastic eraser material and belongs to the technical field of stationery and sporting goods materials. The preparation method includes: adopting a mechanical blending method to use thermoplastic polyurethane elastomer to modify butadiene-styrene rubber, blending butadiene rubber with the modified butadiene-styrene rubber to serve as a raw material, combining with auxiliaries like plasticizer epoxy soybean oil, filler white carbon black, stabilizer and lubricant, and performing hot-press forming to obtain the elastic eraser material. Polyurethane is high in hardness and rich in elasticity and has high mechanical strength, oil resistance, ozone resistance and excellent low-temperature performance; the thermoplastic polyurethane elastomer isused to modify the butadiene-styrene rubber, so that the modified butadiene-styrene rubber has elasticity of the polyurethane elastomer; the butadiene rubber has the advantages of high elasticity, high wear resistance, high cold resistance, low heat yield, high deflection resistance and good dynamic performance; by blending the butadiene rubber with the modified butadiene-styrene rubber, the eraser material prepared by the method has high elasticity, and breakage when in use is avoided.
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Description

Technical field

[0001] The invention relates to a method for preparing an elastic eraser material, and belongs to the technical field of materials for stationery and sports. Background technique

[0002] Eraser (English: eraser (US), rubber (English, Australian)), also known as eraser, eraser, eraser, paper eraser, eraser cloth, eraser, eraser, used to wipe ink on paper with pencil Stationery. They are mostly white, brown or pink, but with the emergence of new materials, the current eraser can be any color. The main constituent material of the eraser is rubber. Some higher-priced erasers contain plastic ingredients. Tools for wiping off chalk or whiteboard handwriting are generally called stucco or (black) boards. Nowadays, there are many types of erasers to meet different needs. Some pencils have a small eraser at the end. These erasers are mostly pink, and the surface is smooth gel. They perform well in most occasions, but sometimes they stain the paper. If the effort i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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