Emulsion polymerization pressure-sensitive adhesive with ultra-low emulsifier dosage and high water resistance and weather resistance and preparation method of emulsion polymerization pressure-sensitive adhesive
A technology of emulsifier dosage and emulsion polymerization, applied in the direction of monocarboxylic acid ester copolymer adhesive, amide/imide polymer adhesive, reagent, etc. , lack of performance and other problems, to achieve the effect of superior performance and excellent performance
Pending Publication Date: 2022-05-17
惠州市赛力达化工有限公司
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Problems solved by technology
[0003] Existing oil-based pressure-sensitive adhesives use organic solvents as the polymerization medium, which is not environmentally friendly, safe, or economical. In addition, in terms of polymer performance, since it is solution free radical polymerization, the degree of polymerization and molecular weight are not easy to increase, and the performance is certain. deficient in some respects
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] A high water-resistant and weather-resistant emulsion polymerization pressure-sensitive adhesive with ultra-low emulsifier dosage. Composed of four major components: body, water, emulsifier and water-soluble initiator,
[0020] The unsaturated monomers include but are not limited to: acrylic acid, methacrylic acid, methyl methacrylate, styrene, vinyl acetate, butyl acrylate, isooctyl acrylate, acrylamide, N-methacrylamide one or more species.
[0021]...
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The invention discloses an emulsion polymerization pressure-sensitive adhesive with ultra-low emulsifier dosage and high water resistance and weather resistance, emulsion polymerization is carried out in emulsion prepared from unsaturated monomers and water under the action of an emulsifier, and the system is mainly composed of the unsaturated monomers, the water, the emulsifier and a water-soluble initiator. The unsaturated monomer comprises but is not limited to one or more of acrylic acid, methacrylic acid, methyl methacrylate, styrene, vinyl acetate, butyl acrylate, 2-ethylhexyl acrylate, acrylamide and N-methacrylamide. According to the invention, polymers obtained by an emulsion polymerization method are used, so that the molecular weight is much higher than that of polymers obtained by an oily solution polymerization method, and the performance is more excellent; in addition, due to the fact that the ultra-low emulsifier which is almost soap-free polymerization is used for emulsion polymerization, the water resistance of the obtained macromolecular substance is comparable with that of oily macromolecules.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to an emulsion polymerization pressure-sensitive adhesive with ultra-low emulsifier dosage and high water and weather resistance and a preparation method thereof. Background technique [0002] At present, the pressure-sensitive adhesives used outdoors and in some humid environments are generally oil-based pressure-sensitive adhesives with high viscosity, high strength, and high water resistance, such as outdoor advertising posters, car film stickers, and family bathroom hook stickers. [0003] Existing oil-based pressure-sensitive adhesives use organic solvents as the polymerization medium, which is not environmentally friendly, safe, or economical. In addition, in terms of polymer performance, since it is solution free radical polymerization, the polymerization degree and molecular weight are not easy to increase, and the performance is certain. There are also deficiencie...
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Patent Timeline
Login to View More IPC IPC(8): C08F220/06C08F220/14C08F212/08C08F218/08C08F220/18C08F220/56C08F220/54C08F2/24C09J133/02C09J133/12C09J125/04C09J131/04C09J133/08C09J133/26C09J133/24
CPCC08F220/06C08F220/14C08F212/08C08F218/08C08F220/1804C08F220/1808C08F220/56C08F220/54C08F2/24C09J133/02C09J133/12C09J125/04C09J131/04C09J133/08C09J133/26C09J133/24Y02P20/141
Inventor 魏仁兴蔡业茂王金娥谈巧
Owner 惠州市赛力达化工有限公司