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Melamine resin based on recycled renewable resources as well as preparation method and application thereof

A technology of melamine resin and renewable resources, applied in the field of melamine resin, to increase income, avoid waste of resources, and reduce air pollution

Inactive Publication Date: 2021-04-30
佛山市至佳餐具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the current melamine resin production process, there is no research on the utilization of coffee grounds and straws. Therefore, this application provides a melamine resin based on recycling renewable resources, its preparation method and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides a kind of melamine resin based on reclaiming renewable resources, and its preparation method comprises the following steps:

[0032] (1) Weigh each raw material according to mass percentage: 20% coffee grounds, 25% straw, 0.25% curing agent, 0.15% food coloring, 0.35% release agent, and the rest melamine resin. The curing agent is benzoic acid. Described release agent is zinc stearate. The size of the coffee grounds particles is 20 mesh. The stalks are corn stalks and the like.

[0033] (2) Clean the coffee grounds, put them into a special drying bag, put them in the oven to bake, and turn them manually several times in the middle to make them dry evenly. The moisture content of the dried coffee grounds is 3%; The drying temperature of slag is 100℃, and the drying time is 11h;

[0034] (3) Put the dried coffee grounds into a vacuum heating furnace with a vacuum degree of 0.02Mpa for heating and carbonization; the heating rate is 10°C / min, an...

Embodiment 2

[0039] This embodiment provides a kind of melamine resin based on reclaiming renewable resources, and its preparation method comprises the following steps:

[0040] (1) Weigh each raw material according to mass percentage: 30% coffee grounds, 20% straw, 0.85% curing agent, 0.05% food coloring, 0.65% release agent, and the rest melamine resin. The curing agent is benzoic acid. Described release agent is zinc stearate. The size of the coffee grounds particles is 100 mesh. The stalks are corn stalks and the like.

[0041] (2) Clean the coffee grounds, put them into a special drying bag, bake them in an oven, and turn them manually several times in the middle to make them dry evenly. The moisture content of the dried coffee grounds is 4%; The drying temperature of slag is 120℃, and the drying time is 9h;

[0042] (3) Put the dried coffee grounds into a vacuum heating furnace with a vacuum degree of 0.08Mpa for heating and carbonization; the heating rate is 20°C / min, after the ...

Embodiment 3

[0047] This embodiment provides a kind of melamine resin based on reclaiming renewable resources, and its preparation method comprises the following steps:

[0048] (1) Weigh each raw material according to mass percentage: 25% coffee grounds, 22% straw, 0.5% curing agent, 0.1% food coloring, 0.4% release agent, and the rest melamine resin. The curing agent is benzoic acid. Described release agent is zinc stearate. The size of the coffee grounds particles is 60 mesh. The stalks are corn stalks and the like.

[0049] (2) Clean the coffee grounds, then put them into a special drying bag, put them in the oven to bake, and manually turn them several times in the middle to make them dry evenly. The moisture content of the dried coffee grounds is 3.5%; The drying temperature of slag is 110℃, and the drying time is 10h;

[0050](3) Put the dried coffee grounds into a vacuum heating furnace with a vacuum degree of 0.05Mpa for heating and carbonization; the heating rate is 15°C / min....

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Abstract

The invention is applicable to the technical field of melamine resin, and provides melamine resin based on recycled renewable resources as well as a preparation method and application thereof. The melamine resin based on recycled renewable resources is prepared from the following raw materials in percentage by weight: 20-30% of coffee grounds, 20-25% of straws, 0.25-0.85% of a curing agent, 0.05-0.15% of a pigment, 0.35-0.65% of a release agent and the balance of melamine resin. According to the invention, bio-based materials such as coffee grounds, straws and the like are used as initial raw materials to chemically modify melamine resin, so the degradability is improved on the basis of not influencing the strength of the product, the environment-friendly effect is achieved, and the attractiveness and identifiability of the appearance of the product are also improved; coffee grounds in the melamine resin play a role in absorbing formaldehyde in the forming process, and the produced product is safer; and the degradability of the melamine resin is greatly improved and can reach 65% or above.

Description

technical field [0001] The invention belongs to the technical field of melamine resin, and in particular relates to a melamine resin based on recycled renewable resources, its preparation method and application. Background technique [0002] Melamine, that is, melamine resin, belongs to thermosetting plastics in plastics. It is non-toxic, tasteless, bump-resistant, corrosion-resistant, high-temperature resistant, low-temperature resistant, and has strong durability. It is more and more commonly used by families, hotel catering, children's catering industry, etc., and has wide application and convenient practicability. However, melamine itself has poor degradability, and its environmental protection is restricted. People are constantly exploring melamine and green raw materials to prepare environmentally friendly melamine resin materials. At present, corn (potato, sweet potato, etc.) starch, bamboo powder (bamboo fiber ) and other plant materials have been applied in melamin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/28C08L97/02C08L99/00C08K5/09C08K5/098
CPCC08L61/28C08L2201/06C08L2205/03C08L97/02C08L99/00C08K5/09C08K5/098
Inventor 严华
Owner 佛山市至佳餐具有限公司
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