Modified polyacrylate microemulsion, synthesis mehtod and use thereof

Abstract

The present invention belongs to the field of high-molecular material, and is related to a modified polyacrylate microemulsion, its synthesis method and application. Said synthesis method includes the following three steps: (1). pre-emulsifying nuclear monomer; (2). pre-emulsifying shell monomer; and (3) making polymerization by using nucle-shell polymerization process. The microemulsion composition contains 28-34 wt% of modified polyacrylate polymer, 2-3 wt% of emulsifier, 3-4 wt% of surfactant adjuvant and the rest is water, and the average grain size of the modified polyacrylate polymer in the emulsion is less than 100 nm. Said microemulsion can be used as adhesive of textiles.

Description

technical field

[0001] The invention belongs to the field of macromolecular materials, and in particular relates to a modified polyacrylate microemulsion and its synthesis method and application. Background technique

[0002] Polyacrylate emulsions are widely used in industries such as paints, coatings, adhesives, fabric finishing agents, leather finishing and inks due to their excellent properties. However, most polyacrylate emulsions are ordinary emulsions with large particle sizes, most of which are white opaque low-viscosity colloidal dispersions with a particle size of 0.1-1 μm. According to reports (Journal of Polymer science: Part A: Polymer Chemistry. 1995, 33: 1849-1857), the average particle size doubles, and the minimum film-forming temperature (MFT) increases by 2.8°C. The larger the particle size, the worse the compactness and smoothness of the film. The particle size of the microemulsion is between 10 and 100 nm, and it is a thermodyn...

Examples

Embodiment 1

[0036] 1) Pre-emulsification of nucleomonomers

[0037] Use a balance to weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.50g PEG 400, 0.12g SDS, 0.17g glycerin into a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.7ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0038] 2) Pre-emulsification of shell monomer

[0039]Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.63g PEG 400, 0.28gSDS, 0.35g glycerin into a small beaker, then measure 9.7ml BA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 10ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion m...

Embodiment 2

[0051] 1) Pre-emulsification of nucleomonomers

[0052] Use a balance to weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.72g PEG 400, 0.12g SDS, 0.14g glycerin into a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.5ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0053] 2) Pre-emulsification of shell monomer

[0054] Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.48g PEG 400, 0.28gSDS, 0.21g glycerin into a small beaker, then measure 9.7ml BA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 10ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion ...

Embodiment 3

[0066] 1) Pre-emulsification of nucleomonomers

[0067] Weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.60g PEG 600, 0.12g SDS, 0.35g glycerin in a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.7ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0068] 2) Pre-emulsification of shell monomer

[0069] Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.53g PEG 600, 0.28gSDS, 0.17g glycerol into a small beaker, then measure 9.7ml EHA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 12ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion method to prepare ...

technical field

[0001] The invention belongs to the field of macromolecular materials, and in particular relates to a modified polyacrylate microemulsion and its synthesis method and application. Background technique

[0002] Polyacrylate emulsions are widely used in industries such as paints, coatings, adhesives, fabric finishing agents, leather finishing and inks due to their excellent properties. However, most polyacrylate emulsions are ordinary emulsions with large particle sizes, most of which are white opaque low-viscosity colloidal dispersions with a particle size of 0.1-1 μm. According to reports (Journal of Polymer science: Part A: Polymer Chemistry. 1995, 33: 1849-1857), the average particle size doubles, and the minimum film-forming temperature (MFT) increases by 2.8°C. The larger the particle size, the worse the compactness and smoothness of the film. The particle size of the microemulsion is between 10 and 100 nm, and it is a thermodyn...

Examples

Embodiment 1

[0036] 1) Pre-emulsification of nucleomonomers

[0037] Use a balance to weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.50g PEG 400, 0.12g SDS, 0.17g glycerin into a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.7ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0038] 2) Pre-emulsification of shell monomer

[0039]Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.63g PEG 400, 0.28gSDS, 0.35g glycerin into a small beaker, then measure 9.7ml BA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 10ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion m...

Embodiment 2

[0051] 1) Pre-emulsification of nucleomonomers

[0052] Use a balance to weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.72g PEG 400, 0.12g SDS, 0.14g glycerin into a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.5ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0053] 2) Pre-emulsification of shell monomer

[0054] Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.48g PEG 400, 0.28gSDS, 0.21g glycerin into a small beaker, then measure 9.7ml BA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 10ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion ...

Embodiment 3

[0066] 1) Pre-emulsification of nucleomonomers

[0067] Weigh 0.03g AEO-3, 0.06g AEO-7, 0.12g AES, 0.60g PEG 600, 0.12g SDS, 0.35g glycerin in a small beaker, then measure 1.2ml MMA, 1.5ml MAA, 1.5ml AN, 0.7ml S t Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under the condition of slight heat (about 40°C), and slowly add 7ml of water under high-speed mechanical stirring after completely dissolving, and use the phase inversion dispersion method to make the nucleus Monomer pre-emulsion.

[0068] 2) Pre-emulsification of shell monomer

[0069] Weigh 0.07g AEO-3, 0.14g AEO-7, 0.28g AES, 0.53g PEG 600, 0.28gSDS, 0.17g glycerol into a small beaker, then measure 9.7ml EHA, 1.6ml D 4 Add it into a small beaker, dissolve the emulsifier and co-surfactant in the monomer under slightly heated conditions, and slowly add 12ml of water under high-speed mechanical stirring after all dissolved, and use the phase inversion dispersion method to prepare ...