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A modified γ-cyclodextrin and its application in environmentally friendly water-based adhesives

A water-based adhesive and cyclodextrin technology, applied in the direction of adhesive additives, adhesive types, ester copolymer adhesives, etc., can solve the problem of affecting biological growth and human health, aromatic hydrocarbon solvents are highly toxic and carcinogenic and other problems, to achieve the effect of shortening the production time, short curing time and low cost

Active Publication Date: 2021-07-09
威海惠和胶业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These volatile substances are discharged into the atmosphere, which is very harmful, and some of them undergo photochemical action to generate ozone. The ozone in the lower space pollutes the atmosphere and affects the growth of organisms and human health. Some halogenated hydrocarbon solvents are harmful to the atmosphere. Substances of the ozone layer
Some aromatic hydrocarbon solvents are very toxic and even carcinogenic

Method used

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  • A modified γ-cyclodextrin and its application in environmentally friendly water-based adhesives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The production process of environment-friendly water-based adhesive comprises the following steps:

[0025] S1. Weigh each raw material by weight: 60 parts of silicon acrylic emulsion, 8 parts of nano silicon dioxide, 0.25 part of dioctyl sulfosuccinate sodium salt, 0.25 part of nonylphenol polyoxyethylene ether, modified γ-ring 7 parts of dextrin, 1 part of propylene glycol phenyl ether, 3 parts of polyvinyl alcohol, 6 parts of potassium citrate, 0.15 parts of silicone defoamer, 1.5 parts of antibacterial additive, 10 parts of ethanol, 20 parts of water;

[0026] S2. Add silicon-acrylic emulsion, propylene glycol phenyl ether, silicone defoamer, and polyvinyl alcohol into ethanol and mix evenly at a speed of 300r / min for 15 minutes to obtain component A; nano-silica, anionic surfactant, Add nonionic surfactant, modified γ-cyclodextrin, potassium citrate, and antibacterial additive into water and stir for 15 minutes at a speed of 300r / min to obtain component B; add comp...

Embodiment 2

[0030] The production process of environment-friendly water-based adhesive comprises the following steps:

[0031] S1. Weigh each raw material by weight: 60 parts of silicon acrylic emulsion, 8 parts of nano silicon dioxide, 0.25 part of dioctyl sulfosuccinate sodium salt, 0.25 part of nonylphenol polyoxyethylene ether, γ-cyclodextrin 7 parts, 1 part of propylene glycol phenyl ether, 3 parts of polyvinyl alcohol, 6 parts of potassium citrate, 0.15 parts of silicone defoamer, 1.5 parts of antibacterial additive, 10 parts of ethanol, 20 parts of water;

[0032] S2. Add silicon-acrylic emulsion, propylene glycol phenyl ether, silicone defoamer, and polyvinyl alcohol into ethanol and mix evenly at a speed of 300r / min for 15 minutes to obtain component A; nano-silica, anionic surfactant, Add nonionic surfactant, modified γ-cyclodextrin, potassium citrate, and antibacterial additive into water and stir for 15 minutes at a speed of 300r / min to obtain component B; add component A to c...

Embodiment 3

[0035] The production process of environment-friendly water-based adhesive comprises the following steps:

[0036] S1. Weigh each raw material by weight: 60 parts of silicon acrylic emulsion, 8 parts of nano silicon dioxide, 0.25 part of dioctyl sulfosuccinate sodium salt, 0.25 part of nonylphenol polyoxyethylene ether, modified γ-ring 7 parts of dextrin, 1 part of propylene glycol phenyl ether, 3 parts of polyvinyl alcohol, 6 parts of potassium citrate, 0.15 parts of silicone defoamer, 1.5 parts of antibacterial additive, 10 parts of ethanol, 20 parts of water;

[0037] S2. Add silicon-acrylic emulsion, propylene glycol phenyl ether, silicone defoamer, and polyvinyl alcohol into ethanol and mix evenly at a speed of 300r / min for 15 minutes to obtain component A; nano-silica, anionic surfactant, Add nonionic surfactant, modified γ-cyclodextrin, potassium citrate, and antibacterial additive into water and stir for 15 minutes at a speed of 300r / min to obtain component B; add comp...

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Abstract

The invention discloses a modified γ-cyclodextrin and its application in an environment-friendly water-based adhesive. The modified γ-cyclodextrin is as follows: γ-cyclodextrin, maleic anhydride, and N,N-dimethylformamide are stirred and mixed for 10-20 hours, cooled to room temperature and placed for 5-10 hours to obtain a reaction solution; The reaction solution was precipitated in chloroform, and the precipitate was dried to obtain pretreated γ-cyclodextrin; the pretreated γ-cyclodextrin, nano-titanium dioxide, and water were stirred and mixed for 20-50 minutes, then sodium persulfate was added, and the temperature was raised to 60- Stir and mix at 90°C for 2-5 hours to obtain a mixed solution; spray-dry the mixed solution to obtain the obtained product. Compared with the prior art, the modified γ-cyclodextrin of the present invention is applied to the environment-friendly water-based adhesive and its production process, and the silicon-acrylic emulsion has good chemical stability, excellent mechanical stability, and the lowest cost. Low film temperature, excellent bonding performance and other characteristics, the dispersion of each raw material in the system is good, the water-based adhesive of the present invention has short curing time, good construction performance, good water resistance, low cost, and high firmness of the covering curtain. The strength is good, the combination is dense, and it can be bonded quickly after pressing, which shortens the production time.

Description

technical field [0001] The invention relates to a modified gamma-cyclodextrin and its application in environment-friendly water-based adhesives. Background technique [0002] Adhesive refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesive, which has the characteristics of continuous stress distribution, light weight and low process temperature. Adhesives are mainly composed of bonding substances, curing agents, toughening agents, diluents, fillers and modifiers. The adhesive is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications and complex components. Adhesives have the fastest development in modern times and are widely used in the automotive industry, shipbuilding industry, aerospace industry, electrical and electronic industry, construction industry, medical industry, textile industry and packaging industry. There are many classification methods of adhesives, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F222/06C08K3/22C09J11/08C09J11/04C09J133/04
Inventor 肖彬
Owner 威海惠和胶业有限公司
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