Preparation method of xylogen phenolic resin adhesive

A technology of phenolic resin glue and lignin, which is applied in adhesives, adhesive additives, aldehyde/ketone condensation polymer adhesives, etc., can solve the problems of low wear resistance of phenolic resin adhesives, low safety of phenolic resins, non Environmental protection and other issues, to achieve excellent water resistance and weather resistance, fast curing speed, and good economic benefits

Inactive Publication Date: 2018-03-27
深圳市吉田化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Phenolic resin adhesives have disadvantages such as low wear resistance, high cost, high curing temperature, and long hot-pressing time. On the other hand, the raw materials for preparation are non-renewable petrochemical energy products, which are not environmentally friendly. low security

Method used

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  • Preparation method of xylogen phenolic resin adhesive

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation of activated lignin

[0040] (1) Take reed stems and leaves, crush them into reed dregs, sprinkle water to moisten them until the water content is 60%, add Tween-80 with 0.05% reed dregs mass, mix them evenly, pack them into bags, and inoculate them with Pseudomonas aeruginosa. After 2 days of aseptic solid-state culture, the cultivation substrate was obtained, and then the cultivation substrate was inoculated with Pteris cerevisiae, and the cultivation was continued for 12 days, and the cultivation temperature was kept at 37°C;

[0041] The Pseudomonas aeruginosa is placed in an Erlenmeyer flask with 20% of the activation medium, the inoculum size is 5%, and the activation culture is carried out at 37°C and 200rpm for 12 hours; the activation medium consists of the following concentration components: Material preparation: rapeseed oil 30g / L, corn steep liquor dry powder 6g / L, NaNO 3 6g / L, K 2 HPO 4 0.9g / L, NaH 2 PO 4 0.6g / L, MgSO 4 0.3g / L, CaCl...

Embodiment 2

[0052] 1. Preparation of activated lignin

[0053] (1) Take reed stems and leaves, crush them into reed dregs, sprinkle water to moisten them until the water content is 70%, add Tween-80 with 0.15% reed dregs mass, mix them evenly, pack them into bags, and inoculate them with Pseudomonas aeruginosa. After 3 days of aseptic solid-state culture, the cultivation substrate was obtained, and then the cultivation substrate was inoculated with Pteris cerevisiae, and the cultivation was continued for 16 days, and the cultivation temperature was kept at 45°C;

[0054] The Pseudomonas aeruginosa is placed in an Erlenmeyer flask with 20% of the activation medium, the inoculum size is 5%, and the activation culture is carried out at 37°C and 200rpm for 16 hours; the activation medium is composed of the following concentration components: Material preparation: rapeseed oil 30g / L, corn steep liquor dry powder 6g / L, NaNO 3 6g / L, K 2 HPO 4 0.9g / L, NaH 2 PO 4 0.6g / L, MgSO 4 0.3g / L, C...

Embodiment 3

[0065] 1. Preparation of activated lignin

[0066] (1) Take reed stems and leaves, crush them into reed dregs, sprinkle water to moisten them until the water content is 65%, add Tween-80 with 0.1% reed dregs mass, mix them evenly, pack them into bags, and inoculate them with Pseudomonas aeruginosa. After 3 days of aseptic solid-state culture, the cultivation substrate was obtained, and then the cultivation substrate was inoculated with Pteris cerevisiae, and the cultivation was continued for 14 days, and the cultivation temperature was kept at 40°C;

[0067] The described Pseudomonas aeruginosa is placed in an Erlenmeyer flask with 20% of the activation medium, the inoculum size is 5%, and the activation culture is carried out at 37° C. and 200 rpm for 14 hours; the activation medium consists of the following concentration components: Material preparation: rapeseed oil 30g / L, corn steep liquor dry powder 6g / L, NaNO 3 6g / L, K 2 HPO 4 0.9g / L, NaH 2 PO 4 0.6g / L, MgSO 4 ...

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Abstract

The invention provides a preparation method of a xylogen phenolic resin adhesive. The method comprises the steps of preparing activated lignin through microbial fermentation, enabling the activated lignin and phenol to react to partially substitute the phenol, and by adopting a hyperbranched polyester as a medium, utilizing a porous material quartz powder for loading anion powder and xylogen substituted phenol to react with formaldehyde so as to prepare to obtain the xylogen phenolic resin adhesive. The phenolic resin adhesive prepared by the invention is high in abrasion resistance, fast in curing speed, high in adhesion strength, and less in release amount of hazardous substance formaldehyde at the same time, contacts with air to release negative oxygen ions, has a better air purification capacity, belongs to an environment-friendly high polymer material, and has an excellent development potential.

Description

technical field [0001] The invention belongs to the technical field of chemical polymer material preparation, and in particular relates to a preparation method of a lignin phenolic resin adhesive. Background technique [0002] In modern industrial production, phenol is a non-renewable and highly toxic petrochemical raw material widely used in the synthesis of phenolic resins. Therefore, seeking an environmentally friendly chemical raw material that can replace phenol is a research hotspot for scholars. Lignin is the second largest renewable resource after cellulose in nature, and it is also the aromatic compound with the largest natural yield. Lignin is a three-dimensional network structure natural aromatic compound with phenylpropane as the structural unit and highly cross-linked by carbon-carbon bonds and ether bonds. Since the molecule has active functional groups such as alcoholic hydroxyl groups and phenolic hydroxyl groups, which are similar in structure to phenolic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/14C09J167/00C09J11/04C08H7/00C08G8/28
CPCC08G8/28C08H6/00C09J11/04C09J161/14C08L67/00C08K9/12C08K7/26
Inventor 黄宇
Owner 深圳市吉田化工有限公司
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