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Preparation method of biomass-based foam material

A technology of biomass materials and foam materials, which is applied in the field of preparation of foam materials, can solve the problems of high foam cost and complicated process, and achieve the effect of no equipment requirement, simple process and mild reaction conditions

Inactive Publication Date: 2017-06-20
梁卓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of high cost and complicated process of preparing bio-based material foam in the above-mentioned technology, the present invention invents a preparation method of bio-based foam material, aiming to obtain a bio-based foam material with better quality, low preparation cost, simple process, Bio-Based Foam Suitable for Cushioning Packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a biomass-based foam material, the operation steps are as follows:

[0025] (1) Take biomass material eucalyptus wood chips, add mass percent concentration of 21% ammonia water for 10 hours according to the weight ratio of biomass material and ammonia water into 1:2, and soak for 10 hours according to the weight ratio of biomass material and turpentine oil into 1:1 after taking out Soak in turpentine for 8 minutes, then keep the temperature at 120°C and roast for 40 minutes, and crush through a 180-mesh sieve to obtain biomass material powder;

[0026] (2) With the biomass material powder obtained in step (1), according to the weight ratio of the biomass material powder and the diethanolamine aqueous solution into 1:0.3, add a diethanolamine aqueous solution with a mass percentage concentration of 15% and mix evenly, and keep the nuclear magnetic resonance at 40 ° C for 3 ~5 minutes, then keep the temperature at 85°C for 70 minutes, cool to room ...

Embodiment 2

[0029] A preparation method of a biomass-based foam material, the operation steps are as follows:

[0030] (1) Take the biomass material moso bamboo slices, add the ammonia water with a mass percentage concentration of 7% according to the weight ratio of the biomass material and the ammonia water for 20 hours, and soak it for 20 hours according to the weight ratio of the biomass material and the turpentine oil in the ratio of 1:3 Soak in turpentine for 5 minutes, then keep the temperature at 130°C and roast for 30 minutes, pulverize and pass through a 220-mesh sieve to obtain biomass material powder;

[0031] (2) With the biomass material powder obtained in step (1), according to the weight ratio of the biomass material powder and the diethanolamine aqueous solution into a 1:1 weight ratio, add a diethanolamine aqueous solution with a mass percentage concentration of 18% and mix evenly, and keep the nuclear magnetic resonance at 50 ° C for 3 ~5 minutes, then keep the temperatu...

Embodiment 3

[0034] A preparation method of a biomass-based foam material, the operation steps are as follows:

[0035] (1) Take the biomass material palm fiber, add the ammonia water with a mass percentage concentration of 12% according to the weight ratio of the biomass material and ammonia water for 1:2.5 and soak for 15 hours, and take it out according to the weight ratio of the biomass material and turpentine oil of 1:2 Soak in turpentine for 7 minutes, then keep the temperature at 125°C and roast for 35 minutes, and crush through a 200-mesh sieve to obtain biomass material powder;

[0036] (2) With the biomass material powder obtained in step (1), according to the weight ratio of the biomass material powder and the diethanolamine aqueous solution into 1:0.5, add a diethanolamine aqueous solution with a mass percentage concentration of 16% and mix evenly, and keep the nuclear magnetic resonance at 45 ° C for 3 ~5 minutes, then keep the temperature at 88°C for 60 minutes, cool to room ...

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Abstract

The invention discloses a preparation method of a biomass-based foam material. The preparation method comprises (1) taking a biomass material, adding the biomass material in ammonia water, carrying out soaking, immersing the biomass material in turpentine, and carrying out roasting, crushing and screening, (2) adding a diethanolamine aqueous solution into the powder, carrying out mixing and nuclear magnetic resonance for a reaction for 50-70min, and cooling the mixture to the room temperature so that a biomass material precursor liquid is obtained, and (3) adding a surfactant, a foaming agent and a curing agent into the biomass material precursor liquid, carrying out stirring, carrying out foaming curing at the normal temperature and carrying out aging at a temperature of 40-50 DEG C for 40-60min to obtain a biomass foam material. The biomass foam material has good quality. After immersion in ammonium hydroxide, the turpentine covers the biomass material fiber surfaces and the biomass material fiber is roasted so that bending strength and bending strain are observably improved. Through a diethanolamine aqueous solution reaction, product toughness and strength are improved and the product has high mechanical properties. The preparation method has low requirements on equipment, has mild reaction conditions and has simple processes.

Description

technical field [0001] The invention relates to a preparation method of a foam material, in particular to a preparation method of a biomass-based foam material. Background technique [0002] At present, the research and application of biomass-based foam materials at home and abroad mainly include natural resin-based foam materials, vegetable oil-based foam materials, lignocellulose-based foam materials and starch-based foam materials. The main principle is to use natural resins, polyols, polycarboxylic acids, phenolic substances and other components in biomass materials to replace chemicals for the preparation of foam materials. Therefore, it has the advantages of wide source of raw materials, low cost, good environmental protection, etc., and can be applied to the fields of packaging cushioning materials and building flame-retardant insulation materials. [0003] The current cellulose foam materials are mainly composed of fibrillated cellulose, regenerated cellulose dissol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/14C08L97/02
CPCC08J9/141C08J9/145C08J2203/14C08J2203/142C08J2397/02C08L97/02C08L2203/14
Inventor 梁卓
Owner 梁卓
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