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Straw-waste paper mixed fiber cushioning material and preparation method thereof

A technology of waste paper fibers and mixed materials is applied in the field of preparation of buffer packaging materials, which can solve the problems of high cost, difficult process, complicated operation process, etc., and achieve the effects of good buffer performance, wide application range and wide source.

Inactive Publication Date: 2014-12-03
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, the current foreign straw fiber foaming process mainly uses water vapor for foaming, which requires high equipment, difficult process and high cost.
Domestic scholars mostly use chemical foaming agents for straw fiber foaming. If they are not selected properly, they will pollute the environment. In addition, the operation process is complicated and the cushioning performance is not good.

Method used

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  • Straw-waste paper mixed fiber cushioning material and preparation method thereof
  • Straw-waste paper mixed fiber cushioning material and preparation method thereof
  • Straw-waste paper mixed fiber cushioning material and preparation method thereof

Examples

Experimental program
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Embodiment

[0029] 1) Crushing the corn stalks in a pulverizer, soaking and softening the waste corrugated cardboard, and pulping and mixing them at a ratio of 1:2 for later use.

[0030] 2) Take 15%-20% of the mixed fiber and put it in 5% NaOH solution for pretreatment, which is equivalent to 7.5 times the amount of dry mixed slurry. Mix evenly in a water bath at 40°C. After pretreatment for 30 minutes, take out Rinse with water until neutral.

[0031] 3) Cooked starch 35%-40%, compound adhesive 3%-4%, calcium carbonate 1.5%-1.8%, sodium tetraborate decahydrate 0.10%-0.13%, glycerol 1.5%-2%, 1%-1.5% of the compound foaming agent and 35%-40% of water are stirred and mixed evenly, and then added to the mixed slurry and stirred to make it fully mixed.

[0032] 4) Put the mixture into a specific mold, put it in a microwave oven, the power is 640W, and the time is 12min, and the foamed product is obtained, and then the product is dried in a blast drying oven to a constant weight, and placed ...

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Abstract

The invention belongs to the field of packaging, and discloses a straw-waste paper mixed fiber cushioning material and a preparation method thereof. The material is prepared by using straws and waste paper fibers as initial raw materials and adding cured starch, a compound adhesive, calcium carbonate, sodium borate decahydrate, glycerol, a compound foaming agent and water. The preparation method comprises the following steps: 1. pulverizing and uniformly mixing pulverized straw fibers, waste paper and water in a stirrer, carrying out proper pretreatment, and standing for later use; 2. curing starch; 3. compounding three adhesives; 4. uniformly mixing the cured starch, compound adhesive, calcium carbonate, sodium borate decahydrate, glycerol and compound foaming agent; and 5. uniformly stirring the prepared material with the mixed fibers, adding into a mold, carrying out microwave forming under high-temperature conditions, and drying in a blast drying box to constant weight. The technique has the advantages of no environment pollution, wide raw material sources and low cost. The cushioning material is simple to manufacture and easy to operate, and has cushioning property and biodegradability. The cushioning material can be used for cushioning packaging of mechanical parts and industrial miscellaneous goods, and has wide development prospects.

Description

technical field [0001] The invention relates to a preparation method of a straw-waste paper mixed fiber buffer packaging material. Background technique [0002] With the continuous advancement of today's science and technology, plastic products and related industries have developed rapidly. Among them, in the field of cushioning packaging, polyethylene (PE) and polystyrene (EPS) foaming cushioning materials have been widely used in the field of transportation packaging due to their advantages of light weight, heat insulation, excellent cushioning performance, low cost and convenient processing. widely used. However, EPS plastic foam products are a kind of polymer compound, there are many problems in the process of manufacture and use, the waste is not easy to degrade, and the incineration will produce toxic substances, which has a serious impact on the environment. Therefore, the development of alternative products becomes inevitable. Straw fiber foam cushioning material,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L97/02C08K13/02C08K3/26C08K3/38C08K5/053C08J9/08C08J9/10C08J3/28
Inventor 钱怡陈玉芬王彤孙昊
Owner JIANGNAN UNIV
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