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Anti-static formaldehyde-free adhesive as well as preparation method and application thereof

An aldehyde adhesive and anti-static technology, which is applied in the field of anti-static aldehyde-free adhesive and its preparation, can solve the problems of poor anti-static ability and excessive formaldehyde concentration of anti-static floor, achieve low cost and alleviate the shortage of petroleum resources , highly reproducible effect

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention overcomes the problem of formaldehyde released by traditional aldehyde adhesives in the prior art and the shortcomings of traditional anti-static floor formaldehyde concentration exceeding the standard and poor anti-static ability, and provides an anti-static formaldehyde-free adhesive and its preparation method and application

Method used

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  • Anti-static formaldehyde-free adhesive as well as preparation method and application thereof
  • Anti-static formaldehyde-free adhesive as well as preparation method and application thereof
  • Anti-static formaldehyde-free adhesive as well as preparation method and application thereof

Examples

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preparation example Construction

[0036] 50% barium titanate core-shell particles BaTiO 3 -The preparation method of PANI, comprises the following steps:

[0037] a Barium titanate surface modification: 10g of barium titanate nanoparticles BaTiO 3 Add to 100ml of absolute ethanol, ultrasonically disperse, add 1g of KH550 silane coupling agent, stir at 70°C, set for 0.5h, centrifuge the obtained barium titanate, wash with deionized water, and dry in an oven at 60°C for 12h , to prepare dry barium titanate nanoparticles.

[0038] b Preparation of core-shell particles: Add 100ml of HCl solution with a concentration of 1mol / L and 5g of sodium dodecylbenzenesulfonate in a three-necked flask, stir until transparent, then add the barium titanate nanoparticles prepared in step a, and Add 10g of aniline after vacuum distillation to 40g of n-hexane and mix evenly, add it into a three-necked flask, keep stirring under an ice bath at 1-5°C, after stirring evenly, add 0.5g of ammonium persulfate solution dropwise at a ra...

Embodiment 1

[0042] A preparation method of an antistatic formaldehyde-free adhesive, comprising the following steps:

[0043] 1) Weigh 28kg of soybean meal powder, 2kg of polyethylene glycol diglycidyl ether, and the mass percentage is 50% barium titanate core-shell particle BaTiO 3-PANI 2kg, mass percent is 0.3kg of 50% sodium hydroxide solution, dispersion medium water 70kg;

[0044] 2) The barium titanate core-shell particles BaTiO 3 -PANI was added into the dispersion medium water, and stirred for 24 hours to obtain a dispersion;

[0045] 3) Add soybean meal powder, polyethylene glycol diglycidyl ether and sodium hydroxide solution to the dispersion prepared in step 2) in sequence, stir evenly at room temperature, heat to 85°C for 30 minutes, and naturally cool down to 30°C. An antistatic and formaldehyde-free adhesive is prepared.

Embodiment 2

[0047] A preparation method of an antistatic formaldehyde-free adhesive, comprising the following steps:

[0048] 1) Weigh 29kg of soybean meal powder, 1kg of polyethylene glycol diglycidyl ether, and the mass percentage is 60% barium titanate core-shell particle BaTiO 3 -PANI 4kg, mass percent is 0.5kg of 50% sodium hydroxide solution, dispersing medium water 70kg;

[0049] 2) The barium titanate core-shell particles BaTiO 3 -PANI was added into the dispersion medium water, and stirred for 24 hours to obtain a dispersion;

[0050] 3) Add soybean meal powder, polyethylene glycol diglycidyl ether and sodium hydroxide solution to the dispersion prepared in step 2) in sequence, stir evenly at room temperature, heat to 85°C for 30 minutes, and naturally cool down to 30°C. An antistatic and formaldehyde-free adhesive is prepared.

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Abstract

The invention belongs to the technical field of high polymer materials, and provides an anti-static formaldehyde-free adhesive and a preparation method and application thereof. The anti-static formaldehyde-free adhesive is prepared from, by weight, 28-30 parts of soybean meal powder, 1-2 parts of a cross-linking agent, 2-4 parts of a modified reinforcing agent, 0.1-0.6 part of a catalyst and 70 parts of dispersion medium water, wherein a protein content in the soybean meal powder is 53%, the particle size of the soybean meal powder is 250 meshes, and the modified reinforcing agent is a barium titanate core-shell particle BaTiO3-PANI. According to the invention, the soybean meal powder is selected as a matrix, the raw materials are easy to obtain, and the prepared anti-static formaldehyde-free adhesive can meet the water-resistant, anti-static and process requirements of anti-static floor adhesives, is low in cost and guarantees the practical performance of the biomass adhesive.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an antistatic formaldehyde-free adhesive and its preparation method and application. Background technique [0002] Formaldehyde-free protein-based adhesives have the advantages of rich sources, low price, environmental protection and renewable, etc., and can be used to replace "aldehyde" resin adhesives used in the wood industry to eliminate the hazards of formaldehyde release from wood-based panels. Field and industry research focus. However, the large-scale popularization and application of soybean protein adhesives are restricted due to the disadvantages of poor bonding performance, high viscosity, and poor workmanship. Less than 0.1%. Therefore, further improving the bonding and process performance of soybean protein adhesives and obtaining wood-based panel products with excellent performance are of great significance to the green upgrading of the wood...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J189/00C09J11/04C09J11/08B27D1/08
CPCC09J189/00C09J11/04C09J11/08B27D1/08C08K2201/011C08L2201/04C08L71/02C08K9/10C08K3/24
Inventor 姜帅成夏常磊权熙茗李建章葛省波韦妍蔷吴佳敏叶浩然
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