Green environment-friendly cushioning fiber package material and preparation method thereof

A green environmental protection, buffer packaging technology, applied in the field of fiber packaging materials, can solve the problems of limiting the wide application of packaging materials, difficulty in water resistance, high cost, and achieve the effects of good mechanical processing performance, good moisture resistance, and good dimensional stability.

Active Publication Date: 2012-03-21
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, starch molecules contain countless hydroxyl groups. Although many researchers currently use esterification or acetylation to modify hydroxyl groups to improve their water resistance, it is still difficult to achieve water resistance, and starch foaming materials are due to raw materials. The wide range of sources, high cost and high brittleness also limit the wide application of this kind of packaging material, which has been mentioned in some materials

Method used

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  • Green environment-friendly cushioning fiber package material and preparation method thereof
  • Green environment-friendly cushioning fiber package material and preparation method thereof
  • Green environment-friendly cushioning fiber package material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing a green environment-friendly natural fiber cushioning packaging material, comprising the following steps and process conditions:

[0039] (1) Fiber drying: air-dry the natural plant fibers at 95°C until the moisture content of the fibers is 12%; the natural plant fibers are coniferous wood fibers prepared by disc grinding; wherein the fiber size is: 14 mesh through sieving Number of fiber content ≤ 10%; fiber content of 14 mesh but retained in 100 mesh ≤ 80%; fiber content of 100 mesh number ≥ 10%.

[0040] (2) Preparation of chemically modified solution: in the mixing tank, add SH-202R type silicon-copper waterproofing agent, 11% flame retardant and 0.9% preservative that account for 2% of dry plant fiber weight, and Add water to form a chemically modified solution whose solid content accounts for 80% of the total solution weight; wherein the waterproofing agent is SH-202R type silicon copper waterproofing agent (Zaoyang Sihai Chemical Co., Ltd.)...

Embodiment 2

[0049] A method for preparing a green environment-friendly natural fiber cushioning packaging material, comprising the following steps and process conditions:

[0050] (1) Fiber drying: the natural plant fiber is air-dried at 105°C until the moisture content of the fiber is 13%; the natural plant fiber is coniferous pine wood fiber prepared by the disc grinding method; wherein the fiber size is: by The fiber content of the 14-mesh sieve is ≤ 10%; the fiber content of the 100-mesh sieve is ≤ 80%; the fiber content of the 100-mesh ≥ 10%.

[0051] (2) Preparation of chemical modification solution: in the mixing tank, add water repellent, 15% fire retardant and 1.2% preservative accounting for dry plant fiber weight, and add water to form a solid content Account for the chemical modification solution of 90% of total solution weight; Wherein water repellent is SH-202R type silicon copper water repellent (Zaoyang Sihai Chemical Co., Ltd.), flame retardant is SUNFOR-RDP oligophosphat...

Embodiment 3

[0057] A method for preparing a green environment-friendly natural fiber cushioning packaging material, comprising the following steps and process conditions:

[0058] (1) Fiber drying: the natural plant fiber is air-dried at 70°C until the moisture content of the fiber is 10%; the natural plant fiber is a broad-leaved poplar wood fiber prepared by a disc grinding method; wherein the fiber size is: by The fiber content of the 14-mesh sieve is ≤ 10%; the fiber content of the 100-mesh sieve is ≤ 80%; the fiber content of the 100-mesh ≥ 10%.

[0059] (2) Preparation of chemically modified solution: in the mixing tank, add water repellent, 12% flame retardant and 0.8% preservative accounting for dry plant fiber weight, and add water to form a solid content Account for the chemical modification solution of 78% of total solution weight; Wherein water repellent is SH-202R type silicon copper water repellent (Zaoyang Sihai Chemical Co., Ltd.), flame retardant is SUNFOR-RDP oligophosph...

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Abstract

The invention discloses a green environment-friendly cushioning fiber package material and a preparation method thereof. The preparation method comprises the following steps: carrying out air flow drying on natural plant fibers until the water content in the fibers is 8-13%; then adding waterproofing agent, fire retardant and preservative which are used as chemical assistants; by using ethyl acetate as diluter, diluting MPU-20 urethane resin adhesive until a mixed liquid which is 3-5 times larger than the original volume is obtained; by using a spray gun as an air flow generator, sucking the mixed liquid of the chemical modification solution and the foamable MPU-20 urethane resin dispersion liquid into the air flow based on the negative pressure effect of the high-speed air flow generated when the spray gun is started, thus forming an air / liquid two-phase mixture fluid and mixing the air flow and the plant fibers; and molding to obtain the ultra-low-density (>=50kg / m<3>) package material. The material has cushioning performance superior to corrugated paper boards and honeycomb paper boards. Besides, the material has the advantages of easy mechanical processing, good bacterium resistance, low cost, good dimensional stability, high moisture resistance and the like.

Description

technical field [0001] The fiber packaging material involved in the present invention, in particular, relates to a green and environment-friendly cushioning fiber packaging material and a preparation method thereof. The material can be used as a cushioning packaging material for packaging industrial electronic products. Background technique [0002] Plastic macromolecular compounds are generally macromolecular polymers and other products formed by processing low molecular compounds such as ethylene. Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) and polystyrene (EPS / As the most common plastic, XPS is favored by consumers because of its advantages such as convenient processing, low production cost and excellent physical properties. Plastics are widely used, such as food fast food boxes, packaging bags, and cushioning packaging materials for industrial products, as well as plastic building materials such as thermal insulation materials and decorative material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L75/04C08J9/08B29C70/44B29B13/06
Inventor 刘德桃陈克复杨仁党李军
Owner SOUTH CHINA UNIV OF TECH
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