A kind of two-component water-soluble spray glue and preparation method thereof

Abstract

The invention provides double-component water-soluble spraying glue and a preparation method of the double-component water-soluble spraying glue. The spraying glue is prepared from the following components in parts by weight: a component A: 70 to 90 parts of vinyl acetate-vinyl copolymerized emulsion, 8 to 15 parts of epoxy resin, 2 to 10 parts of water-based rosin emulsion, 0.1 to 0.5 part of a de-foaming agent and 1 to 2 parts of a wetting agent; a component B: 2 to 5 parts of an epoxy curing agent and 2 to 5 parts of an isocyanate curing agent; the mass ratio of the component A to the component B is (1 to 3) to 1. The double-component water-soluble spraying glue provided by the invention takes the vinyl acetate-vinyl copolymerized emulsion as a main body raw material; the epoxy resin and the water-based rosin emulsion are added, so that the strength and stickiness of the vinyl acetate-vinyl copolymerized emulsion are improved; water in the emulsion reacts at room temperature by utilizing a water-based curing agent, and the effect of rapidly drying is realized.

Description

technical field

[0001] The invention relates to the technical field of adhesives, and specifically discloses a two-component water-soluble spray adhesive and a preparation method thereof. Background technique

[0002] Spray glue is an adhesive product with excellent performance. It has the characteristics of simple operation process and high production efficiency. It has a very broad market prospect. At present, the spray glue used for sponge, sofa, leather and metal in the market is mainly oil-based spray glue. Since oil-based products use a lot of solvents, a large amount of VOC emissions will be generated in the industrial production process, causing serious smog The generation of weather has had a great impact on the human living environment; and the finished product will continue to cause certain damage to the human body, and there are unstable factors such as flammability and explosion when used. According to the rise of consumers' awareness of environmental protectio...

Examples

Embodiment 1

[0032] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0033] 1) Under the condition of a stirring speed of 400r / min, weigh 75g of vinyl acetate-ethylene copolymer emulsion and 15g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 520r / min , weighed 6g of water-based rosin emulsion, 1.2g of wetting agent and 0.2g of defoamer and added them to the reaction vessel in turn, stirred for 3min, mixed evenly and discharged to obtain component A;

[0034] 2) Under the condition that the stirring speed is 520r / min, weigh 4g of epoxy curing agent and 2.3g of hexamethylene diisocyanate trimer (that is, trimer modified HDI) into another reaction vessel, stir for 3min, Discharge after mixing evenly to obtain component B.

[0035] 3) Under the condition of stirring speed of 520r / min, slowly pour B component into A component, and continue to stir for 5 minutes to obtain a two-c...

Embodiment 2

[0037] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0038] 1) Under the condition of a stirring speed of 410r / min, weigh 82g of vinyl acetate-ethylene copolymer emulsion and 10g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 550r / min , weigh 4g of water-based rosin emulsion, 1.3g of wetting agent and 0.3g of antifoaming agent and add them to the reaction vessel in turn, stir for 3min, mix and discharge the material evenly to obtain component A;

[0039] 2) Under the condition of stirring speed of 550r / min, weigh 3.0g of epoxy curing agent and 3.0g of trimer modified HDI and add them into another reaction vessel, stir for 3min, mix evenly and discharge to obtain group B point.

[0040] 3) Under the condition of stirring speed of 550r / min, slowly pour B component into A component, and continue stirring for 4 minutes to obtain a two-component water-soluble spr...

Embodiment 3

[0042] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0043] 1) Under the condition of a stirring speed of 450r / min, weigh 90g of vinyl acetate-ethylene copolymer emulsion and 8g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 550r / min , weighed 3g of water-based rosin emulsion, 1.4g of wetting agent and 0.2g of defoamer and added them to the reaction vessel in sequence, stirred for 3min, mixed evenly and discharged to obtain component A;

[0044] 2) Under the condition of a stirring speed of 550r / min, weigh 2.3g of epoxy curing agent and 3.7g of trimer modified HDI and add them into another reaction vessel, stir for 3min, mix evenly and discharge to obtain group B point.

[0045] 3) Under the condition of a stirring speed of 550r / min, slowly pour the B component into the A component, and continue to stir for 5 minutes to obtain a two-component water-soluble s...

technical field

[0001] The invention relates to the technical field of adhesives, and specifically discloses a two-component water-soluble spray adhesive and a preparation method thereof. Background technique

[0002] Spray glue is an adhesive product with excellent performance. It has the characteristics of simple operation process and high production efficiency. It has a very broad market prospect. At present, the spray glue used for sponge, sofa, leather and metal in the market is mainly oil-based spray glue. Since oil-based products use a lot of solvents, a large amount of VOC emissions will be generated in the industrial production process, causing serious smog The generation of weather has had a great impact on the human living environment; and the finished product will continue to cause certain damage to the human body, and there are unstable factors such as flammability and explosion when used. According to the rise of consumers' awareness of environmental protectio...

Examples

Embodiment 1

[0032] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0033] 1) Under the condition of a stirring speed of 400r / min, weigh 75g of vinyl acetate-ethylene copolymer emulsion and 15g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 520r / min , weighed 6g of water-based rosin emulsion, 1.2g of wetting agent and 0.2g of defoamer and added them to the reaction vessel in turn, stirred for 3min, mixed evenly and discharged to obtain component A;

[0034] 2) Under the condition that the stirring speed is 520r / min, weigh 4g of epoxy curing agent and 2.3g of hexamethylene diisocyanate trimer (that is, trimer modified HDI) into another reaction vessel, stir for 3min, Discharge after mixing evenly to obtain component B.

[0035] 3) Under the condition of stirring speed of 520r / min, slowly pour B component into A component, and continue to stir for 5 minutes to obtain a two-c...

Embodiment 2

[0037] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0038] 1) Under the condition of a stirring speed of 410r / min, weigh 82g of vinyl acetate-ethylene copolymer emulsion and 10g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 550r / min , weigh 4g of water-based rosin emulsion, 1.3g of wetting agent and 0.3g of antifoaming agent and add them to the reaction vessel in turn, stir for 3min, mix and discharge the material evenly to obtain component A;

[0039] 2) Under the condition of stirring speed of 550r / min, weigh 3.0g of epoxy curing agent and 3.0g of trimer modified HDI and add them into another reaction vessel, stir for 3min, mix evenly and discharge to obtain group B point.

[0040] 3) Under the condition of stirring speed of 550r / min, slowly pour B component into A component, and continue stirring for 4 minutes to obtain a two-component water-soluble spr...

Embodiment 3

[0042] A preparation method of two-component water-soluble spray glue, comprising the following steps:

[0043] 1) Under the condition of a stirring speed of 450r / min, weigh 90g of vinyl acetate-ethylene copolymer emulsion and 8g of epoxy resin, add them to a reaction vessel in turn, stir for 3min, and mix well; increase the stirring speed to 550r / min , weighed 3g of water-based rosin emulsion, 1.4g of wetting agent and 0.2g of defoamer and added them to the reaction vessel in sequence, stirred for 3min, mixed evenly and discharged to obtain component A;

[0044] 2) Under the condition of a stirring speed of 550r / min, weigh 2.3g of epoxy curing agent and 3.7g of trimer modified HDI and add them into another reaction vessel, stir for 3min, mix evenly and discharge to obtain group B point.

[0045] 3) Under the condition of a stirring speed of 550r / min, slowly pour the B component into the A component, and continue to stir for 5 minutes to obtain a two-component water-soluble s...

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