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A modified plant fiber molded product and its manufacturing method

A technology of plant fiber and molded products, which is applied in the field of modified plant fiber molded products and its manufacturing, can solve the problems of limiting the service life of the application range, affecting the water resistance of materials, etc., achieving good promotion value, improving poor water resistance, and increasing molecular weight. Effect

Active Publication Date: 2019-03-08
XIAMEN HUSKS NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, some plant fiber environmental protection materials directly use natural starch as a binder, which enhances the degradability of the product, but the presence of starch affects the water resistance of the material, limiting its application range and the service life of the product

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The rice husk is modified, and the modified rice husk powder is used to prepare the ruler.

[0028] 1. Pour the rice husk into a 16wt% sodium hydroxide solution to prepare a suspension with a volume concentration of 60%, then heat it to 70-90°C for 1 hour and keep stirring at a low speed, and finally dehydrate to obtain alkali cellulose.

[0029] 2. Add alkali cellulose to 1 wt% epichlorohydrin solution to prepare a suspension with a volume concentration of 60%, continue stirring at a low speed for 3 hours, and dehydrate to obtain cross-linked alkali cellulose.

[0030] 3. Wash the cross-linked alkali cellulose with water for 3 times, then mix the cross-linked alkali cellulose and water to form a suspension with a volume concentration of 60%, add nitric acid solution to obtain an acidic suspension with a pH of 4-5 .

[0031] 4. Add glyoxal to the acid suspension, continue to stir at a low speed for 3 hours, and dehydrate to obtain double cross-linked alkali cellulose. ...

Embodiment 2

[0035] A book fixing frame is prepared by modifying peanut shells.

[0036] 1. Pour peanut shells into sodium hydroxide solution with a concentration of 8wt% to prepare a suspension with a volume concentration of 30%, then heat it to 70-90°C for 4 hours and keep stirring at a low speed, and finally dehydrate to obtain alkali cellulose.

[0037] 2. Add the alkali cellulose to the epichlorohydrin solution with a concentration of 6wt% to prepare a suspension with a volume concentration of 30%, continue stirring at a low speed for 5 hours, and dehydrate to obtain cross-linked alkali cellulose.

[0038] 3. Wash the cross-linked alkali cellulose with water for 2 times, then mix the cross-linked alkali cellulose and water to form a suspension with a volume concentration of 30%, add acetic acid solution to obtain an acidic suspension with a pH of 4-5 .

[0039] 4. Add glutaraldehyde to the acid suspension, continue to stir at a low speed for 5 hours, and dehydrate to obtain double-cr...

Embodiment 3

[0043] The straw is modified, and the modified straw is used to prepare a toy house.

[0044] 1. First grind the straw into granules, pour the straw granules into a potassium hydroxide solution with a concentration of 10wt% to prepare a suspension with a volume concentration of 40%, then heat to 70-90°C for 2 hours and continue stirring at a low speed, and finally Dehydration to obtain alkali cellulose.

[0045] 2. Add alkali cellulose to 3wt% epichlorohydrin solution to prepare a suspension with a volume concentration of 40%, continue stirring at a low speed for 4 hours, and dehydrate to obtain cross-linked alkali cellulose.

[0046] 3. Wash the cross-linked alkali cellulose with water for 3 times, then mix the cross-linked alkali cellulose and water to form a suspension with a volume concentration of 40%, add carbonic acid solution to obtain an acidic suspension with a pH of 5.

[0047] 4. Add glyoxal to the acid suspension, continue stirring at a low speed for 4 hours, and...

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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PUM

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Abstract

The invention relates to a production method of modified vegetable fiber molded product. The method comprises the following steps: carrying out high concentration alkali treatment on plant wastes used as a raw material, sequentially carrying out chloropropylene oxide primary cross-linking, acid-base neutralization and bi-aldehyde compound secondary cross-linking, centrifuging the obtained material, dehydrating the centrifuged material, drying the dehydrated material, grinding the dried material to form cellulose powder, sieving the cellulose powder, and producing toys, furniture, office furniture, stationery and other vegetable fiber products from the cellulose powder. The molded product has the characteristics of high strength, low cost, environmental protection, no addition of other additives, complete degradation in the nature, and wide market prospect.

Description

technical field [0001] The invention relates to environment-friendly products, in particular to a modified plant fiber molded product and a manufacturing method thereof. Background technique [0002] In recent years, plant fibers have been widely used and processed into new environmentally friendly materials, which are used to replace plastics, glass, ceramics, wood and bamboo to make tableware, toys, furniture, decorative lamps and other products. The raw material is cheap and inexhaustible renewable natural plant fiber, which comes from agricultural product wastes such as rice husk, rice straw, wheat straw, corn straw, cotton stalks, wood chips, bamboo chips, etc., and its total amount far exceeds that of petroleum, coal, The total amount of natural gas. [0003] The main raw materials of existing plant fiber environmental protection materials include plant fiber and synthetic resin. Although the degradability of the material has been improved to a certain extent, the syn...

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B15/00C08B1/08
CPCC08B1/08C08B15/005
Inventor 庄展鹏柯婵陈鉥
Owner XIAMEN HUSKS NEW MATERIAL TECH CO LTD
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