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Biomass based cushion package foamed material, and preparation method thereof

A technology for buffer packaging and foam materials, applied in the field of buffer packaging materials, can solve the problems of slow addition of viscosity, application restrictions, high density of packaging foam materials, and achieve the effects of reducing equipment loss, cost advantages, and good fluidity

Active Publication Date: 2019-11-19
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 107298748 A discloses a fast packaging material that utilizes plant starch to produce environmentally friendly, degradable, and flame-retardant materials, but the preparation steps of its biomass starch polyether polyol are cumbersome and complicated, requiring slow addition of various polyether polyols and controlled reaction The viscosity of the system, the density of the obtained packaging foam material is higher
Patent CN 104448187 A discloses a polyurethane packaging material mixed with modified wood powder, which has certain toughness and strength, but the content of modified wood powder is very low, and the foam expansion is low. During the process of spraying modified wood powder Wetting requires relatively expensive dextranase
Patent CN 106397710 A discloses a combined polyether, polyurethane raw material composition, foam and preparation method. The viscosity of the obtained combined polyether is 465-500mPa·s (25°C), and the recovery rate of the foam product after compression of 50% reaches 95%. , but its compressive strength is only 10-12kPa, which also has great limitations on its application

Method used

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  • Biomass based cushion package foamed material, and preparation method thereof
  • Biomass based cushion package foamed material, and preparation method thereof
  • Biomass based cushion package foamed material, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Preparation of liquefied products:

[0040] Mix polyethylene glycol 400 and glycerin according to the mass ratio of 4:1 to obtain a liquefaction reagent, take 100 parts of the liquefaction reagent, add 2 parts of concentrated sulfuric acid to it, stir evenly, heat the temperature to 160°C, and slowly add 17 parts of coconut shell fibers crushed to 40-80 mesh and dried, kept the temperature constant and continued stirring for 80 minutes, then stopped the reaction and cooled down rapidly, and added a sufficient amount of acetone to dissolve the reaction product when the temperature dropped to room temperature. The insoluble residue is removed by vacuum filtration, the acetone solvent is recovered by rotary evaporation under pressure, and the liquefaction product of coconut shell fiber is obtained.

[0041] Preparation of biomass-based cushioning packaging foam materials:

[0042] Take 35 parts of coconut shell fiber liquefaction products, 32.5 parts of polyether polyol a...

Embodiment 2

[0044] Preparation of liquefied products:

[0045]Mix polyethylene glycol 400 and glycerol evenly into the liquefaction reagent according to the mass ratio of 4:1, take 100 parts of the liquefaction reagent, add 2 parts of concentrated sulfuric acid to it, stir evenly, heat the temperature to 160°C, and slowly add Add 17 parts of coconut shell fibers crushed to 40-80 mesh and dried, keep the temperature constant and continue stirring for 40 minutes, then stop the reaction and quickly cool down, and add enough acetone to dissolve the reaction product when the temperature drops to room temperature. The insoluble residue is removed by vacuum filtration, the acetone solvent is recovered by rotary evaporation under pressure, and the liquefaction product of coconut shell fiber is obtained.

[0046] Preparation of biomass-based cushioning packaging foam materials:

[0047] Get 35 parts of coconut shell fiber liquefaction products, 43 parts of polyether polyol a, 22 parts of polyethe...

Embodiment 3

[0049] Preparation of liquefied products:

[0050] Mix polyethylene glycol 400 and glycerol evenly into the liquefaction reagent according to the mass ratio of 4:1, take 100 parts of the liquefaction reagent, add 2 parts of concentrated sulfuric acid to it, stir evenly, heat the temperature to 160°C, and slowly add Add 12 parts of coconut shell fibers crushed to 40-80 mesh and dried, keep the temperature constant and continue stirring for 80 minutes, then stop the reaction and quickly cool down, and add enough acetone to dissolve the reaction product when the temperature drops to room temperature. The insoluble residue is removed by vacuum filtration, the acetone solvent is recovered by rotary evaporation under pressure, and the liquefaction product of coconut shell fiber is obtained.

[0051] Preparation of biomass-based cushioning packaging foam materials:

[0052] Get 25 parts of coconut shell fiber liquefaction products, 25 parts of polyether polyol a, 50 parts of polyeth...

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Abstract

The invention discloses a biomass based cushion package foamed material. The biomass based cushion package foamed material comprises a mixture A and isocyanate; by mass, the mixture A comprises 15 to65 parts of a cocoanut shell fiber liquefaction product, 15 to 45 parts of a polyether polyol a, 20 to 50 parts of a polyether polyol b, 1 to 2 parts of a catalyst A, 0.8 to 1.5 parts of a catalyst B,0.3 to 0.8 part of a foam stabilizing agent, and 2 to 6 parts of deionized water; the mass ratio of the mixture A to the isocyanate is controlled to be 1:1-1:1.2. The biomass based cushion package foamed material is relatively low in density, and possesses certain cushion performance.

Description

technical field [0001] The invention belongs to the field of cushioning packaging materials, and in particular relates to a cushioning packaging foam material using coconut shell fiber biomass as a raw material and a preparation method thereof. Background technique [0002] For precision instruments and fragile commodities, cushioning packaging materials are usually required to achieve a certain protection effect on the items during transportation and prevent them from being damaged. At present, the commonly used cushioning packaging materials include cushioning packaging materials such as paper, air cushion, plant fiber, expanded polystyrene foam and polyurethane foam. However, these traditional cushioning packaging materials have certain defects and deficiencies. The surface of paper cushioning packaging materials is too hard and their recovery is poor; the performance of air cushion packaging materials is not stable enough and their strength is low; The foaming process i...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/64C08G18/48C08J9/08C08G101/00
CPCC08G18/4081C08G18/4804C08G18/4833C08G18/4837C08G18/64C08G18/7664C08J2375/08C08G2110/0083
Inventor 叶李艺陈应彭邦宪涂宗铃陈赐辉吐松尹应武
Owner XIAMEN UNIV