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Polyvinyl butyral polyurethane acrylate, synthesis method and application thereof

A technology of urethane acrylate and polyvinyl butyral, which is applied in the field of polyvinyl butyral urethane acrylate and its synthesis, can solve problems such as limiting the application of acrylic resin, and achieve excellent mechanical properties, excellent bonding properties, high intensity effect

Inactive Publication Date: 2018-07-20
安庆北化大科技园有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These disadvantages limit the application of acrylic resin in curing film

Method used

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  • Polyvinyl butyral polyurethane acrylate, synthesis method and application thereof
  • Polyvinyl butyral polyurethane acrylate, synthesis method and application thereof
  • Polyvinyl butyral polyurethane acrylate, synthesis method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]Dissolve 44.40g of isophorone diisocyanate in chloroform, add 0.45g of catalyst dibutyltin dilaurate, stir evenly, and then add dropwise to the mixed solution of isophorone diisocyanate and catalyst at 40°C 40.00g of dihydroxy polyoxypropylene ether (204, hydroxyl value 280±20mgKOH / g), heated to 50°C for 2h to form polyurethane prepolymer; add 0.03g of polymerization inhibitor to 28.06g of hydroxyethyl acrylate (HEA) Mix p-hydroxyanisole evenly, then drop the mixed solution of HEA and polymerization inhibitor into the above polyurethane prepolymer at 40°C, raise the temperature to 50°C and react for 3h to form polyurethane acrylate prepolymer; mix 8.80 1g of polyvinyl butyral (PVB) was dissolved in chloroform, and 0.09g of catalyst dibutyltin dilaurate was added, stirred evenly, and then 0.44g of the above polyurethane was added dropwise to the mixed solution of PVB and catalyst at 40°C The acrylate prepolymer is heated to 50°C for 3 hours to react to form polyvinyl buty...

Embodiment 2

[0049] Dissolve 44.40g of isophorone diisocyanate in 1,4-dioxane, add 1.11g of catalyst dibutyltin dilaurate, stir evenly, and then add isophorone diisocyanate and catalyst at 50°C Add 112.36g of dihydroxy polyoxypropylene ether (210, hydroxyl value 100±10mgKOH / g) dropwise to the mixed solution, raise the temperature to 60°C for 3 hours to form a polyurethane prepolymer; add to 28.06g of hydroxyethyl acrylate (HEA) 0.03g polymerization inhibitor p-hydroxyanisole, mix well, then add the mixed solution of HEA and polymerization inhibitor dropwise to the above polyurethane prepolymer at 50°C, raise the temperature to 60°C and react for 4h to form polyurethane acrylate prepolymer Polymer; Dissolve 8.80g polyvinyl butyral (PVB) in chloroform, add 0.44g catalyst dibutyltin dilaurate, stir evenly, then drop into the mixed solution of PVB and catalyst at 50°C Add 1.76g of the above urethane acrylate prepolymer, heat up to 60°C and react for 4 hours to form polyvinyl butyral urethane a...

Embodiment 3

[0051] Dissolve 69.66g of toluene diisocyanate in N,N-dimethylformamide, add 3.48g of catalyst dibutyltin dilaurate, stir well, then add dropwise to the mixed solution of toluene diisocyanate and catalyst at 45°C 200.36g of dihydroxypolytetrahydrofuran oxypropyl ether (220, hydroxyl value 56±4mgKOH / g), heated to 55°C for 4 hours to form a polyurethane prepolymer; add 0.28g of inhibitor to 28.06g of hydroxyethyl acrylate (HEA) agent p-hydroxyanisole, mix evenly, then drop the mixed solution of HEA and polymerization inhibitor into the above polyurethane prepolymer at 45°C, raise the temperature to 50°C and react for 4h to form polyurethane acrylate prepolymer; Dissolve 8.80g of polyvinyl butyral (PVB) in chloroform, add 0.22g of catalyst dibutyltin dilaurate, stir evenly, then add dropwise 3.52g of the above-mentioned The urethane acrylate prepolymer is heated to 70°C for 6 hours to form polyvinyl butyral urethane acrylate, that is, photopolymerizable urethane acrylate containi...

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Abstract

The invention discloses a polyvinyl butyral polyurethane acrylate, which has a general structural formula shown as the specification. Specifically, x is 5-8, y is 2-10, and z is 2-10; R1 is any one ofthe following structures in the specification, R2 is any one of the following structures in the specification, and in R2, n1 is 2-8, and n2 is 2-8. The invention also discloses a synthesis method ofthe polyvinyl butyral polyurethane acrylate, and the method includes: reacting diisocyanate with polyether diol to form a polyurethane prepolymer; then reacting the polyurethane prepolymer with hydroxyethyl acrylate to form a polyurethane acrylate prepolymer; and then adding the polyurethane acrylate prepolymer into polyvinyl butyral dropwise to form polyvinyl butyral polyurethane acrylate. The polyvinyl butyral polyurethane acrylate provided by the invention is transparent, provides excellent bonding properties and mechanical properties, high strength and flexibility, and can be applied as aphotopolymerizable light-sensitive resin in various fields.

Description

technical field [0001] The invention belongs to the technical field of functional polyacrylate resins, and more specifically relates to a polyvinyl butyral urethane acrylate and a synthesis method and application thereof. Background technique [0002] Polyvinyl butyral (PVB) is formed from polyvinyl alcohol (PVA) and butyraldehyde under the condition of an acid catalyst, the carbonyl in butyraldehyde reacts with two adjacent hydroxyl groups in polyvinyl alcohol to generate six A polymer with a membered ring acetal structure. Due to its unique molecular structure, this polymer has various excellent properties and is widely used in various fields. The long-chain structure in its molecule provides a lower glass transition temperature, which makes PVA resin have excellent tensile strength and impact strength; a large number of hydroxyl groups in its molecule make PVB polymer resistant to glass, metal, wood, rubber, Ceramics and leather have good bonding properties; in addition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/62C08G18/48C08G18/40
CPCC08G18/672C08G18/4063C08G18/4825C08G18/4854C08G18/6212C08G18/40
Inventor 聂俊白美荣朱晓群方大为
Owner 安庆北化大科技园有限公司
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