A waterborne polyurethane-acrylate copolymer emulsion and a preparing method thereof

A technology of polyurethane acrylate and copolymer emulsion, which is applied in the chemical industry, can solve the problems of poor compatibility stability, limited flame retardancy, and low solid content, and achieve good flame retardancy and improve heat resistance.
CN107286306AActive Publication Date: 2017-10-24DONGGUAN CTL NEW MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DONGGUAN CTL NEW MATERIAL TECH
Publication Date
2017-10-24

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Abstract

A waterborne polyurethane-acrylate copolymer emulsion and a preparing method thereof are disclosed. The emulsion is prepared by preparing a phosphorus containing waterborne polyurethane emulsion containing carbon-carbon double bonds from diisocyanate, a flame-retardant polyol, a non-flame-retardant polyol, a chain extender containing an acidic group, hydroxyl acrylate and an end-capping agent through a chemical grafting method; and then subjecting acrylate, phosphate containing a carbon-carbon double bond, vinyl silicone oil, a vinyl silane coupling agent and an acrylic acid type crosslinking agent which are adopted as raw materials to emulsion polymerization under protection of a phosphate surfactant. The copolymer emulsion has a high solid content, time for drying the copolymer emulsion is short, and a product after the copolymer emulsion is dried has good flame retardance and resistance to thermal decomposition.
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Description

Technical field

[0001] The invention belongs to the technical field of chemical industry, and specifically relates to a water-based polyurethane acrylate copolymer emulsion and a preparation method thereof. Background technique

[0002] Water-based polyurethane (PUD) emulsion and water-based acrylate (PA) emulsion are two types of polymer materials that are currently widely used and have been widely used as base materials for coatings, inks, and adhesives. Among them, PUD emulsion has excellent low-temperature resistance, abrasion resistance and solvent resistance, but has poor stability, low solid content and high cost; the biggest feature of PA emulsion is low cost, high hardness, multiple modification pathways, and solid content. The content is relatively high, but there is an obvious shortcoming of "hot stickiness and cold brittleness". PUD and PA each have their own characteristics. The water-based polyurethane acrylate (PUA) copolymer emulsion formed by copolymerizing...

Claims

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