Environmentally-friendly low-viscosity SEBS (Styrene-Ethylene-Butadiene-Styrene) spray adhesive and preparation method thereof

Abstract

The invention relates to an environmentally-friendly low-viscosity SEBS (Styrene-Ethylene-Butadiene-Styrene) spray adhesive and a preparation method thereof. The adhesive comprises the following components in percentage by weight: 9-15 percent of SEBS rubber, 13-32 percent of tackifying resin, 3-20 percent of ester solvent, 2-10 percent of diolefine solvent, 0.2-1.0 percent of antioxidant and 40-60 percent of 6# solvent oil. The preparation method comprises the following steps of: a, adding a fixed amount of solvent petroleum, ester solvent and diolefine solvent into a stirrer, and starting the stirrer for stirring uniformly; b, putting the SEBS rubber into a reactor; c, putting the tackifying resin and the antioxidant into the stirrer for stirring; and d, putting all the materials into the stirrer, stirring for 1-4 hours, and filtering through a screen after the mixture is dissolved into a faint yellow uniform glue solution. The adhesive has the advantages of non-toxicity, quickness in drying, high intensity, high aging resistance and extensive construction performance.

Description

technical field

[0001] The invention belongs to the field of adhesives, and in particular relates to an environment-friendly low-viscosity SEBS spray glue and a preparation method thereof. Background technique

[0002] The main component of spray glue currently on the market is mostly SBS. SBS is an excellent styrene-based plastic elastomer, which has physical properties similar to vulcanized rubber without being vulcanized. SBS can be in contact with water, weak acid, alkali, etc. It has excellent tensile strength, large surface friction coefficient, good low temperature performance, excellent electrical performance, and good processing performance. It has become the most consumed thermoplastic elastomer at present. However, the SBS main chain contains a large number of aliphatic double bonds, and its shortcoming is poor anti-aging performance, and its hydrogenated product SEBS overcomes this defect.

[0003] Thermoplastic elastomer SEBS was first researched and developed ...

Examples

Embodiment 1

[0031] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components:

[0032] SEBS rubber 10%

[0033] C9 petroleum resin 10%

[0034] C5 petroleum resin 8%

[0035] Rosin pentaerythritol ester 4%

[0036] Methyl acetate 15%

[0037] n-Hexane 10%

[0038] Antioxidant 1010 0.3%

[0039] 6# solvent gasoline 42.7%

[0040] Above-mentioned formula makes SEBS spray glue of the present invention by following method:

[0041] a. First put quantitative 6# solvent gasoline, ester solvent (methyl acetate) and alkane solvent (n-hexane) into the agitator, and start the machine to stir evenly;

[0042] b, then put the SEBS rubber into the reactor again;

[0043] c. Finally, put the tackifying resin (the mixture containing C9 petroleum resin, C5 petroleum resin and rosin pentaerythritol ester), antioxidant (antioxidant 1010) into the stirrer;

[0044] d. Put all the above materials into the mixer and stir for about 2 hours. After the materials dis...

Embodiment 2

[0051] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components: SEBS rubber: 15%, tackifying resin (including 138 resin, C9 petroleum resin, terpene resin and rosin): 25%, ethyl acetate 8%, Cyclohexane: 5.8%, antioxidant 1010: 0.2%, 6# solvent gasoline: 46%.

[0052] Wherein, the weight ratio of 138 resin, C9 petroleum resin, terpene resin and rosin in the tackifying resin is: 1:2:8:8.

[0053] The preparation method of the above-mentioned environment-friendly low-viscosity SEBS spray glue comprises the following steps in turn: first put quantitative 6# solvent gasoline, ester solvent (ethyl acetate) and alkane solvent (cyclohexane) into the agitator, start the machine to stir uniform; then put SEBS rubber into the reactor again; finally put 138 resin, C9 petroleum resin, terpene resin and rosin in the tackifying resin into the mixer in proportion to stir, and add antioxidant 1010 at the same time; put the above materials Put everything...

Embodiment 3

[0057] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components: SEBS rubber, 138 resin, C9 petroleum resin, C5 petroleum resin, terpene resin, ester solvents (ethyl acetate and ethyl methyl carbonate), alkane solvents ( cyclohexane and n-octane), antioxidant SFH-80 and 6# solvent gasoline. The percentage by weight is as follows: 12%, 9%, 5%, 6%, 3%, 8%, 5%, 0.5% and 51.5%.

[0058] Wherein: the weight ratio of ethyl acetate and ethyl methyl carbonate in the ester solvent is: 1:2. The weight ratio of cyclohexane to n-octane in the alkanes solvent is: 1:2.

[0059]The preparation method is the same as in Example 2. The environmentally friendly low-viscosity SEBS spray glue obtained by this method is a quick-drying adhesive, which is suitable for use in winter or in environments with low temperatures. It can be sprayed on the surface of the adherend with a spray gun in a large area, and it can be bonded after 5 to 10 minutes of drying. I...

technical field

[0001] The invention belongs to the field of adhesives, and in particular relates to an environment-friendly low-viscosity SEBS spray glue and a preparation method thereof. Background technique

[0002] The main component of spray glue currently on the market is mostly SBS. SBS is an excellent styrene-based plastic elastomer, which has physical properties similar to vulcanized rubber without being vulcanized. SBS can be in contact with water, weak acid, alkali, etc. It has excellent tensile strength, large surface friction coefficient, good low temperature performance, excellent electrical performance, and good processing performance. It has become the most consumed thermoplastic elastomer at present. However, the SBS main chain contains a large number of aliphatic double bonds, and its shortcoming is poor anti-aging performance, and its hydrogenated product SEBS overcomes this defect.

[0003] Thermoplastic elastomer SEBS was first researched and developed ...

Examples

Embodiment 1

[0031] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components:

[0032] SEBS rubber 10%

[0033] C9 petroleum resin 10%

[0034] C5 petroleum resin 8%

[0035] Rosin pentaerythritol ester 4%

[0036] Methyl acetate 15%

[0037] n-Hexane 10%

[0038] Antioxidant 1010 0.3%

[0039] 6# solvent gasoline 42.7%

[0040] Above-mentioned formula makes SEBS spray glue of the present invention by following method:

[0041] a. First put quantitative 6# solvent gasoline, ester solvent (methyl acetate) and alkane solvent (n-hexane) into the agitator, and start the machine to stir evenly;

[0042] b, then put the SEBS rubber into the reactor again;

[0043] c. Finally, put the tackifying resin (the mixture containing C9 petroleum resin, C5 petroleum resin and rosin pentaerythritol ester), antioxidant (antioxidant 1010) into the stirrer;

[0044] d. Put all the above materials into the mixer and stir for about 2 hours. After the materials dis...

Embodiment 2

[0051] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components: SEBS rubber: 15%, tackifying resin (including 138 resin, C9 petroleum resin, terpene resin and rosin): 25%, ethyl acetate 8%, Cyclohexane: 5.8%, antioxidant 1010: 0.2%, 6# solvent gasoline: 46%.

[0052] Wherein, the weight ratio of 138 resin, C9 petroleum resin, terpene resin and rosin in the tackifying resin is: 1:2:8:8.

[0053] The preparation method of the above-mentioned environment-friendly low-viscosity SEBS spray glue comprises the following steps in turn: first put quantitative 6# solvent gasoline, ester solvent (ethyl acetate) and alkane solvent (cyclohexane) into the agitator, start the machine to stir uniform; then put SEBS rubber into the reactor again; finally put 138 resin, C9 petroleum resin, terpene resin and rosin in the tackifying resin into the mixer in proportion to stir, and add antioxidant 1010 at the same time; put the above materials Put everything...

Embodiment 3

[0057] Environmentally friendly low-viscosity SEBS spray glue, which includes the following components: SEBS rubber, 138 resin, C9 petroleum resin, C5 petroleum resin, terpene resin, ester solvents (ethyl acetate and ethyl methyl carbonate), alkane solvents ( cyclohexane and n-octane), antioxidant SFH-80 and 6# solvent gasoline. The percentage by weight is as follows: 12%, 9%, 5%, 6%, 3%, 8%, 5%, 0.5% and 51.5%.

[0058] Wherein: the weight ratio of ethyl acetate and ethyl methyl carbonate in the ester solvent is: 1:2. The weight ratio of cyclohexane to n-octane in the alkanes solvent is: 1:2.

[0059]The preparation method is the same as in Example 2. The environmentally friendly low-viscosity SEBS spray glue obtained by this method is a quick-drying adhesive, which is suitable for use in winter or in environments with low temperatures. It can be sprayed on the surface of the adherend with a spray gun in a large area, and it can be bonded after 5 to 10 minutes of drying. I...

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