Preparation method of low-cost fully-biodegradable plant fiber starch tableware

A plant fiber starch, biodegradable technology, applied in the direction of dishes, etc., can solve the problems of the hygienic situation of degradable tableware or packaging products that are difficult to control, the anti-mildew technology is difficult to solve, and the health of consumers is affected, and the impact strength is achieved. High, non-deformable plasticity, the effect of shortening the swelling time

Active Publication Date: 2021-08-24
CHINA YUNHONG HLDG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many degradable tableware or packaging products on the market. Starch products are difficult to solve due to anti-mildew technology, and the cost is too high, so it is difficult to promote them on a large scale; cardboard products require a large amount of wood pulp as raw materials, which is not conducive to the environment. In the production of plastic type, it is easy to mix some toxic and harmful substances, and its degradation speed is not ideal
On the other hand, it is difficult to control the hygiene of biodegradable tableware or packaging products, which may affect the health of consumers
In addition, the production cost of degradable tableware or packaging products mainly made of bio-based biodegradable plastics, such as PLA, and petrochemical-based biodegradable plastics such as PBAT is still high, which is not conducive to large-scale promotion

Method used

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  • Preparation method of low-cost fully-biodegradable plant fiber starch tableware
  • Preparation method of low-cost fully-biodegradable plant fiber starch tableware
  • Preparation method of low-cost fully-biodegradable plant fiber starch tableware

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a method for preparing low-cost biodegradable plant fiber starch tableware, such as figure 1 shown, which includes the following steps:

[0036] S1: Take the plant cellulose material containing Scutellaria baicalensis dregs, add water and stir it into a pulp, filter it with a 100-mesh sieve, and then dry, pulverize, and sieve the solid residue in turn, and then use an airflow ultrafine pulverizer for ultrafine pulverization Treatment (equipment pressure 0.7-1.0MPa, system air volume 3-5m 3 / min, classifier speed 2000~2500r / min), then add starch binder and biodegradation enzyme, adjust the temperature to 50-70°C (preferably 60°C), and adjust the water content to 20%-30% ( Preferably 25%) after stirring in a mixer for 12-20min (preferably 15min), stirring speed 800-1000r / min;

[0037] Send into twin-screw extruder again and carry out blending, extrude, make modified plant fiber starch base stock, and twin-screw extruder extrusion temperature is ...

Embodiment 2

[0046] The only difference between this example and Example 1 is that, and in parts by weight, the fully degradable ecological tableware includes the following components: 70 parts of plant cellulose material, 0.5 part of biodegradable enzyme, starch binder 18 parts, 2 parts of colloidal binder compounded with deacetylated konjac gum, 1 part of antibacterial agent, 0.5 part of stabilizer, 0.8 part of foam accelerator, 0.8 part of dispersant, and 0.2 part of release agent.

Embodiment 3

[0048] The only difference between this example and Example 1 is that, and in parts by weight, the fully degradable ecological meal consists of the following components: 65 parts of plant cellulose materials, 0.4 parts of biodegradable enzymes, starch-based adhesive 15 parts of agent, 0.5 part of colloidal binder of composite deacetylated konjac gum, 0.6 part of antibacterial agent, 1 part of stabilizer, 0.6 part of foam accelerator, 0.5 part of dispersant, and 1 part of release agent.

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Abstract

The invention relates to a preparation method of low-cost fully-biodegradable plant fiber starch tableware, which comprises the following steps of S1, taking a plant cellulose material containing scutellaria baicalensis dregs to prepare a modified plant fiber starch-based blank, S2, sequentially performing crushing and superfine crushing treatment on the konjac glucomannan to prepare a colloid adhesive of the composite deacetylated konjac glucomannan, S3, mixing a colloid adhesive of composite deacetylated konjac glucomannan with the modified plant fiber starch-based blank to form a mixture, and S4, putting the mixture into a forming mold to be subjected to foaming forming, preparing the tableware, and acquiring the fully-degradable ecological tableware. The tableware is good in antibacterial performance, capable of being fully degraded, low in cost and simple in preparation method.

Description

technical field [0001] The invention relates to the technical field of degradable tableware, in particular to a preparation method of low-cost biodegradable plant fiber starch tableware. Background technique [0002] With the convenience and hygienic needs of people's life, convenient and cheap packaging materials gradually appear, which brings a lot of convenience to people's life; but these packaging materials are often discarded after use, causing "white pollution", It is difficult to degrade and form environmental hazards, which has become a huge environmental problem. There are more and more plant fibrous wastes (crop stalks, rice husks, bagasse and other agricultural product processing wastes) in agricultural production. If these wastes are not properly treated and discharged into the environment, they will cause serious environmental pollution problems. [0003] There are many degradable tableware or packaging products on the market. Starch products are difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/00C08L1/02C08L3/02C08L5/02A47G19/03
CPCC08L3/02A47G21/00C08L1/02C08L2205/16C08J9/0061C08J9/0004A47G19/03C08J2301/02C08J2403/02C08J2405/02C08J2397/02C08J2405/06C08J2405/00C08J9/08C08L5/00C08J9/00C08L3/04C08L5/14C08J2401/02C08J2405/14C08L2201/06C08L2203/10C08L2203/14C08L2205/03C08J9/04C08J9/36C08L2201/08
Inventor 李玉保何静仁吴东叶树芯江思佳张瑞
Owner CHINA YUNHONG HLDG CO LTD
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