Vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as preparation method and application thereof

A polyurethane acrylate and vegetable oil-based technology, which is applied in polyurea/polyurethane coatings, polyurea/polyurethane adhesives, applications, etc., can solve the problems of flammability hindering the use of coatings and limiting the scope of application, and achieve good acid resistance Alkali and boiling water resistance, expanded application range, and improved crosslink density

Active Publication Date: 2021-08-27
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its flammability hinders the use of coatings on some materials, limiting its application range

Method used

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  • Vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as preparation method and application thereof
  • Vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as preparation method and application thereof
  • Vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation method of the vegetable oil-based flame-retardant polyurethane acrylate prepolymer of the present embodiment comprises the steps:

[0041] (1) in reactor, add 10.00g epoxidized soybean oil (ESO), 6.03g diethylphosphonoacetic acid and the catalyst 1 of 1% of total feeding weight 1,8-diazabicycloundec-7-ene ( DBU), the molar ratio between the epoxy group in epoxidized soybean oil and the carboxylic acid group in diethylphosphoacetic acid is 1:3, stir evenly and heat up to 130°C, react for 8h, and obtain bio-based Phosphorus polyol (PCSO).

[0042] (2) At room temperature, mix 1g of hydroxyethyl acrylate (HEA) with 13.46g of the bio-based phosphorus-containing polyol (PCSO) obtained in step (1), and then mix 3.83g of isophorone diisocyanate (IPDI) And the catalyst dibutyltin dilaurate (DBTDL) of 1% of total feed weight is slowly dripped, then add the polymerization inhibitor hydroquinone of 0.5% of total feed weight, stir, the isophorone diisocyanate isocy...

Embodiment 2

[0044] The preparation method of the vegetable oil-based flame-retardant polyurethane acrylate prepolymer of the present embodiment comprises the steps:

[0045] (1) in reactor, add 10.00g epoxidized soybean oil (ESO), 6.03g diethylphosphonoacetic acid and the catalyst 1 of 1% of total feeding weight 1,8-diazabicycloundec-7-ene ( DBU), the molar ratio between the epoxy group in epoxidized soybean oil and the carboxylic acid group in diethylphosphoacetic acid is 1:3, stir evenly and heat up to 130°C, react for 8h, and obtain bio-based Phosphorus polyol (PCSO).

[0046] (2) Add 10.00g 3-aminopropyltriethoxysilane (APTES) and 10.49g hydroxyethyl acrylate (HEA) in the reactor, the primary amino group in 3-aminopropyltriethoxysilane and The molar ratio between the double bond groups in hydroxyethyl acrylate is 1:2, stir evenly and raise the temperature to 40°C, react for 5h, and obtain the silicon-containing monomer (Si-OH).

[0047] (3) At room temperature, mix 1g of hydroxyethy...

Embodiment 3

[0050] The preparation method of the vegetable oil-based flame-retardant polyurethane acrylate prepolymer of the present embodiment comprises the steps:

[0051] (1) in reactor, add 10.00g epoxidized soybean oil (ESO), 6.03g diethylphosphonoacetic acid and the catalyst 1 of 1% of total feeding weight 1,8-diazabicycloundec-7-ene ( DBU), the molar ratio between the epoxy group in epoxidized soybean oil and the carboxylic acid group in diethylphosphoacetic acid is 1:3, stir evenly and heat up to 130°C, react for 8h, and obtain bio-based Phosphorus polyol (PCSO).

[0052] (2) Add 10.00g 3-aminopropyltriethoxysilane (APTES) and 10.49g hydroxyethyl acrylate (HEA) in the reactor, the primary amino group in 3-aminopropyltriethoxysilane and The molar ratio between the double bond groups in hydroxyethyl acrylate is 1:2, stir evenly and raise the temperature to 40°C, react for 5h, and obtain the silicon-containing monomer (Si-OH).

[0053] (3) At room temperature, mix 1g of hydroxyethy...

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Abstract

The invention belongs to the technical field of UV (ultraviolet) curing materials, and particularly relates to a vegetable oil-based flame-retardant polyurethane acrylate prepolymer as well as a preparation method and application thereof. The preparation method comprises the following steps: reacting epoxy vegetable oil with diethyl phosphorus acetic acid to prepare bio-based phosphorus-containing polyol, reacting amino siloxane with hydroxyl acrylate to prepare a silicon-containing monomer, and reacting the hydroxyl acrylate, the bio-based phosphorus-containing polyol, the silicon-containing monomer and diisocyanate to prepare the vegetable oil-based flame-retardant polyurethane acrylate prepolymer. According to the invention, green and environment-friendly phosphorus and silicon elements are introduced into the molecular chain of the vegetable oil-based polyurethane acrylate prepolymer, so that the cured film has good flame retardant property, the defect that the traditional vegetable oil-based high polymer material is easy to burn can be overcome, and the application range of the bio-based high polymer material can be expanded.

Description

technical field [0001] The invention belongs to the technical field of UV curing materials, and in particular relates to a vegetable oil-based flame-retardant polyurethane acrylate prepolymer and a preparation method and application thereof. Background technique [0002] With the consumption of non-renewable fossil resources, the increasingly prominent problem of global warming and the fluctuation of oil prices, the use of green, renewable and low-cost bio-based resources to prepare UV-curable materials has become the development trend of the industry. UV curing materials have the characteristics of high efficiency, environmental protection, energy saving, economy and practicality. First, the curing process can be completed within seconds, indicating high curing efficiency. Second, reactive diluents are generally used, which can be polymerized with prepolymers to form a cured film, replacing common volatile solvents, reducing the use of organic solvents, and showing the cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/32C08G18/67C09D175/14C09D5/18C09D11/102C09D11/101C09J175/14C08L75/14B33Y70/00
CPCC08G18/388C08G18/672C08G18/3893C09D175/14C09D5/18C09D11/102C09D11/101C09J175/14C08L75/14B33Y70/00C08L2201/02
Inventor 袁腾尹鉴张婧怡谢琳珊杨卓鸿
Owner SOUTH CHINA AGRI UNIV
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