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Extinction plastic blackboard

A blackboard and plastic technology, applied in the field of plastic products, can solve the problem of easy reflection of blackboards, and achieve the effects of simple processing technology, high wear resistance, and protection of eyesight

Inactive Publication Date: 2013-01-09
武科金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a kind of matte plastic blackboard, which can solve the problem that the blackboard is easy to reflect light in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] The invention provides a matting plastic blackboard, which consists of the following components in parts by weight:

[0017] Polyethylene 40-60 parts,

[0018] Melanin additive 15-20 parts,

[0019] 10-15 parts of plasticizer,

[0020] Stabilizer 5-10 parts,

[0021] Anti-light agent 10-15 parts.

[0022] Wherein, the melanin additive is carbon black powder, pine smoke powder or kiln smoke powder; the plasticizer is dioctyl phosphophthalate, dioctyl adipate or dioctyl trimellitate; The stabilizer is a mixture of lead stearate and barium stearate; the light stabilizer is bisphenol A.

[0023] First, wash and dry the polyethylene plastic, and then crush the polyethylene plastic into fi...

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PUM

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Abstract

The invention discloses an extinction plastic blackboard, which consists of the following components in parts by weight: 40-60 parts of polyethylene, 15-20 parts of a melanin additive, 10-15 parts of a plasticizer, 5-10 parts of a stabilizer and 10-15 parts of a light stabilizer. Due to the adoption of the way, the extinction plastic blackboard disclosed by the invention has the advantages of simple machining process, low cost, effective extinction, simultaneously great lowering of the pollution of chalk dust on the environmental engineering, and protection of the vision of students.

Description

technical field [0001] The invention relates to the field of plastic products, in particular to a plastic blackboard with matting function. Background technique [0002] Existing blackboards, especially blackboards used for teaching, are mostly made of wood, glass, and metal materials. Wooden blackboards are not wear-resistant, easy to moths, easy to burn, short in life and tight in wood sources, and glass blackboards are fragile and heavy. ; The price of metal blackboards is relatively expensive, and the supply of thin steel plates used is relatively tight, and the surface coating of the blackboards is easy to fall off. Ordinary chalk is very dusty when writing on the blackboard. As the use time increases, it will produce serious reflections, damage students' eyesight, and seriously affect the quality of teaching. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a matting plastic blackboard, which can solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/04C08K5/12C08K5/11C08K5/098C08K5/13
Inventor 武科金
Owner 武科金