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A kind of environmentally friendly eraser with antibacterial function and preparation method thereof

An eraser, an environmentally friendly technology, applied in the field of erasers, can solve the problems of young people's physical safety hazards, toxic gas emission, and no antibacterial function, etc., to increase peelability, excellent high strength and ease of processing, and improve wiping Effects of functions and features

Active Publication Date: 2018-01-09
盐城市合荣文体用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest disadvantage of the existing PVC-containing eraser is that it will emit toxic gas after high temperature, which will cause cancer of human organs, and there is a big safety hazard for the body of young people.
And the eraser of prior art does not have antibacterial function, and function is single

Method used

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  • A kind of environmentally friendly eraser with antibacterial function and preparation method thereof
  • A kind of environmentally friendly eraser with antibacterial function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. An environmentally friendly eraser with antibacterial function, which is made of the following parts by weight:

[0034] Thermoplastic styrene butadiene rubber 25%, naphthenic oil 15%, calcium carbonate 50%, polystyrene 5%, inorganic silver antibacterial material 5%. The inorganic silver antibacterial material is an antibacterial agent composed of a glass carrier and silver ions.

[0035] Thermoplastic styrene butadiene rubber 30%, naphthenic oil 15-20%, calcium carbonate 50-60%, polystyrene 5-10%, inorganic silver antibacterial material 5-10%.

[0036] 2. The preparation method of an environmentally friendly eraser with antibacterial function includes the following steps:

[0037] (1) According to weight percentage, select thermoplastic styrene butadiene rubber, naphthenic oil, calcium carbonate, polystyrene and inorganic silver antibacterial material into the mixing tank, stir for 50 minutes, stir evenly, take it out, and pour it into the machine for making particles The ...

Embodiment 2

[0040] 1. An environmentally friendly eraser with antibacterial function, which is made of the following parts by weight:

[0041] Thermoplastic styrene-butadiene rubber 30%, naphthenic oil 20%, calcium carbonate 60%, polystyrene 10%, inorganic silver antibacterial material 10%; the inorganic silver antibacterial material is an antibacterial agent composed of a glass carrier and silver ions.

[0042] 2. The preparation method of an environmentally friendly eraser with antibacterial function includes the following steps:

[0043] (1) According to weight percentage, select thermoplastic styrene butadiene rubber, naphthenic oil, calcium carbonate, polystyrene and inorganic silver antibacterial material into the mixing tank, stir for 50 minutes, stir evenly, take it out, and pour it into the machine for making particles The inside is mixed to produce particles, the particle diameter is 3~4mm;

[0044] (2) Take the particles produced in step (1) and use an injection molding machine to proc...

Embodiment 3

[0044] (2) Take the particles produced in step (1) and use an injection molding machine to process and prepare an environmentally friendly eraser with antibacterial function. Example 3 Antibacterial experiment of environmentally friendly eraser with antibacterial function

[0045] The antibacterial activity of the environmental protection eraser of the present invention against Escherichia coli and Staphylococcus aureus was tested, and the specific experimental results are shown in Table 1 and Table 2:

[0046] Table 1 Experimental results of antibacterial activity of Escherichia coli

[0047]

[0048] Table 2 Experimental results of antibacterial activity of Staphylococcus aureus

[0049]

[0050] The results of the above typical antibacterial experiments indicate that the environmentally friendly eraser provided by the present invention has a good effect on killing E. coli and Staphylococcus aureus and inhibiting bacterial regeneration, and the sterilization rate is greater than 99....

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Abstract

The invention discloses an environment-friendly eraser with an antibacterial function and a preparation method of the eraser. The eraser is prepared from raw materials in percentage by weight as follows: 25%-30% of thermoplastic styrene butadiene rubber, 15%-20% of naphthenic oil, 50%-60% of calcium carbonate, 5%-10% of polystyrene and 5%-10% of an inorganic silver antibacterial material. The environment-friendly eraser with the antibacterial function is screened out through a lot of experiments, all raw material composition and ratios of the raw materials are scientific and reasonable, the eraser is stable in property, free of poisonous gas volatilization, good in antibacterial effect, environment-friendly and safe, a silver ion inorganic antibacterial agent taking glass as a carrier is added, the antibacterial spectrum is wide, and the eraser has very strong killing and inhibiting effects on various bacteria and mould, and the bacterium killing rate is higher than 99.9%. The preparation method is reasonable in process design and high in operability, the prepared eraser is diversified in shape, and industrial mass production can be realized.

Description

Technical field [0001] The invention relates to an eraser, in particular to an environmentally friendly eraser with antibacterial function and a preparation method thereof. Background technique [0002] Erasers are commonly used learning stationery for teenagers, and 80% of the existing eraser products are raw materials containing PVC. The rubber industry made of this material is called PVC eraser, 20% rubber material without PVC ingredient. The rubber materials that do not contain PVC are also called environmentally friendly eraser materials. The erasers produced from such materials are called environmentally friendly erasers. The eraser products are mainly used for children aged 4-13. The biggest disadvantage of the existing PVC-containing erasers is that they emit toxic gases after high temperature, which can cause cancer in human organs, and pose a greater safety hazard to young people. In addition, the eraser in the prior art does not have an antibacterial function and has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L91/00C08L25/06C08K3/26C08K9/12B43L19/00
CPCB43L19/0025C08L9/06C08L2205/03C08L91/00C08L25/06C08K2003/265C08K9/12
Inventor 张学楠
Owner 盐城市合荣文体用品有限公司
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