A kind of manufacturing method of reed-based special-shaped container based on biomass adhesive

A container manufacturing and adhesive technology, applied in the chemical industry application field, can solve the problems of high silicon content in the epidermal tissue, affecting the bonding performance, and non-degradable applications of the product, achieving good biodegradability, no formaldehyde release, and good appearance. good designability

Inactive Publication Date: 2018-06-12
南京立宇机电设备制造有限公司
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AI Technical Summary

Problems solved by technology

The cellulose content of reed is equivalent to that of wood, but there is a waxy layer in the epidermis of reed stems, and the silicon content in the epidermis and leaves is high, which seriously affects the gluing of reed raw materials with "trialdehyde" adhesives commonly used in wood materials. performance, even through proper modification, the strength can be achieved, but the application is limited due to secondary pollution problems such as formaldehyde release and non-degradable products; most of the molded products currently on the market are pulp molded products, all using low The production process of plant fiber molded objects formed by high temperature and high pressure molding of plant fiber mixed pulp with high concentration and low consistency after vacuum dehydration

Method used

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  • A kind of manufacturing method of reed-based special-shaped container based on biomass adhesive

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preparation example Construction

[0016] (2) Preparation of reed-based special-shaped container substrate: add the reed-based raw material obtained in step (1) and auxiliary materials accounting for 1-10% of the total weight of the container into a high-speed mixer and stir evenly;

[0017] (3) Preparation of formaldehyde-free biomass adhesive: mix the main agent powder of biomass adhesive with water according to the mass ratio (50-80): 100 and stir evenly, add 3-30% of the total weight of the adhesive The curing agent, the appropriate amount of viscosity regulator and defoamer are mixed and stirred evenly to prepare the formaldehyde-free biomass adhesive;

[0018] (4) Slowly add the adhesive liquid obtained in step (3) into the high-speed mixer, the amount added is 10-50% of the total weight of the container, start the temperature rise control program, control the high-speed stirring temperature at 50-80°C, and mix Uniform and proper drying, control the final moisture content of the material at 15-25%;

[00...

Embodiment 1

[0026] Reed fiber is used as the main matrix material, and the original color reed fiber-based special-shaped container is molded and pressed. The weight of the container is 100g. The specific manufacturing process steps are divided into:

[0027] 1) Dry the reed fiber until the moisture content is 5%;

[0028] 2) Weigh 63g of reed fiber and 5g of starch into a high-speed mixer and stir evenly;

[0029] 3) Add 30g of biomass adhesive to 2g of curing agent, 3-5 drops of defoaming agent, etc. and mix evenly to prepare a liquid formaldehyde-free biomass adhesive;

[0030] 4) Slowly add the liquid adhesive to the mixture for glue mixing, start the heating and stirring control program, control the high-speed stirring temperature at 50-80°C, and control the final moisture content of the material at 20% through heat transfer and hot air volatilization;

[0031] 5) Pour the material mixed with biomass glue into the mold of the hot press molding machine coated with a release agent on ...

Embodiment 2

[0034] Reed sawdust powder is used as the main matrix raw material to mold and press natural color reed sawdust-based special-shaped containers. The total weight of the container is 100g. The specific manufacturing process steps are divided into:

[0035] 1) Dry the reed fiber until the moisture content is 5%;

[0036] 2) Weigh 68g of reed fiber, 3g of starch, and 2g of soybean powder and add them to a high-speed mixer and stir evenly;

[0037] 3) Add 25g of biomass adhesive to 2g of curing agent, 3-5 drops of defoaming agent, etc. and stir and mix evenly to obtain a liquid formaldehyde-free biomass adhesive;

[0038] 4) Slowly add the liquid adhesive to the mixture for glue mixing, start the heating and stirring control program, control the stirring temperature at 50-80°C, and control the final moisture content of the material at 20% through heat transfer and hot air volatilization;

[0039] 5) Pour the material mixed with biomass glue into the mold of the hot press molding ...

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Abstract

The invention relates to a method for manufacturing a reed-based specially-shaped container on the basis of a biomass adhesive. The method comprises the following process steps: (1) carrying out earlier-stage drying treatment for raw materials; (2) preparing a base material of the reed-based specially-shaped container; (3) preparing an aldehyde-free biomass adhesive; (4) slowly adding an adhesive liquid in a high-speed mixing machine and mixing; (5) preparing a blank of the specially-shaped container; and (6) carrying out polishing and finishing treatment to obtain a finished specially-shaped container product. The method disclosed by the invention has the characteristics of being environment-friendly, cheap and fine, and capable of turning waste into wealth and saving resources. The moulded products manufactured by the method have the characteristics of being good in appearance designability, extremely high in breathability, and capable of controlling a strength and a degradation period as needed, and are free from aldehyde release, free from waste water pollution, and green and environment-friendly.

Description

technical field [0001] The invention relates to a method for manufacturing a reed molded product based on a biomass adhesive, and belongs to the field of chemical industry application. Background technique [0002] Phragmites reed is a perennial aquatic herb whose typical habitats are freshwater or saline swamps, riversides or lakesides. Our country is rich in reed resources, and the distribution is concentrated. The existing industrial utilization is mainly papermaking and weaving. , and pollute the environment. Therefore, the development of reed molded container products and the realization of turning waste into treasure can alleviate the contradiction between timber supply and demand, protect forest resources and the ecological environment, and at the same time drive the economic development of reed producing areas. The cellulose content of reed is equivalent to that of wood, but there is a waxy layer in the epidermis of reed stems, and the silicon content in the epider...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N5/02B27N1/02
CPCB27N1/0209B27N5/02
Inventor 黄润州连海兰封国兵张睿邓峻骞孙香潘明珠颉盼盼梁星宇徐信武梅长彤周定国
Owner 南京立宇机电设备制造有限公司
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