Phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as preparation method and application thereof

A technology of prepolymer and film coating agent, applied in fire retardant addition, papermaking, paper and other directions, can solve the problems of low durability, large migration, decreased water and moisture resistance, etc., and achieve long-term effective waterproof properties.

Pending Publication Date: 2021-04-13
静宁县恒达有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages of inorganic flame retardants are low price and many varieties, but the disadvantages are large specificity, large dosage, poor water resistance, and large migration, resulting in reduced strength of paper packaging boxes, low compressive strength, reduced water and moisture resistance, and safe use. Low sex
The advantages of organic flame retardants are high flame retardant efficiency, small specific gravity, and good water resistance. The disadvantages are that there are few varieties, high prices, high toxicity, high halogen content and high smoke, and they are not resistant to organic matter. pollution, when a fire occurs, it will cause greater environmental pollution due to the high smoke containing halogen
Additive flame retardant is a low molecular compound with flame retardant function, which is directly added to the non-flame retardant adhesive base material. In the application process, its advantages lie in many varieties and convenient use. high
Intrinsic flame retardants are chemically bonded elements with flame retardant functions into the film-forming resin polymer chain structure through molecular design and synthesis to obtain intrinsic flame retardant polymers, or to synthesize intrinsic flame retardants. Flame-retardant polymers are blended with non-flame-retardant base-material polymers to prepare a blended carton moisture-proof and fire-proof water-based coating agent. The advantage is that there are few varieties, high prices, and great technical difficulties

Method used

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  • Phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as preparation method and application thereof
  • Phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as preparation method and application thereof
  • Phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0054] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0055] (1) In a four-neck flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 50ml xylene, 100g PDCP-DGB, dilauric acid with a ratio of 1:0.01 to TDI Dibutyltin.

[0056] (2) Turn on stirring and nitrogen gas, and heat the reaction system in step (1) to 60±1°C in a water bath. After the heat preservation system is uniform, add 21.5g TDI and 9.5g DMPA dropwise within 30 minutes to keep the system temperature at 75±1°C. Insulate for 2 hours, separate and recover the upper xylene.

[0057] (3) Cool the reaction system in step (2) to 45±1°C, then add monoethanolamine and 50ml of water, continue to stir for 1 hour, adjust the pH=9.0, and adjust the product viscosity to 2500Cp (25°C) with water, that is Obtain the phosphorus bora chain prepolymer block polyurethane aqueous copolyme...

no. 2 example

[0062] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0063] (1) In a four-neck flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 100ml xylene, 100g PDCP-DGB, dilauric acid with a ratio of 1:0.02 to TDI Dibutyltin.

[0064] (2) Turn on stirring and nitrogen gas, and heat the reaction system in step (1) to 65±1°C in a water bath. After the heat preservation system is uniform, add 21.5g TDI and 10.5g DMPA dropwise within 30 minutes to keep the system temperature at 70±1°C. Keep warm for 2.5h, separate and recover the upper xylene.

[0065] (3) Cool down the reaction system in step (2) to 45±1°C, then add monoethanolamine and 150ml of water, continue stirring for 1 hour, adjust the pH=8.0, and adjust the product viscosity to 3000Cp (25°C) with water, that is Obtain the phosphorus bora chain prepolymer block polyurethane aqueous c...

no. 3 example

[0070] 1. The preparation of phosphobora chain prepolymer block polyurethane aqueous copolymer comprises the following steps:

[0071] (1) In a four-necked flask with mechanical stirring, nitrogen protection, condensing reflux, water bath heating and temperature control device, add 150ml xylene, 100g PDCP-DGB, dilauric acid with a ratio of 1:0.03 to TDI Dibutyltin.

[0072] (2) Turn on stirring and blow nitrogen, and heat the reaction system in step (1) to 60±1°C in a water bath. After the heat preservation system is uniform, add 20.5g TDI and 9.5g DMPA dropwise within 30 minutes to keep the system temperature at 75±1°C. Keep warm for 1.5h, separate and recover the upper xylene.

[0073] (3) Cool down the reaction system in step (2) to 50±1°C, then add monoethylamine and 150ml of water, continue to stir for 1h, adjust the pH=7.5, and then adjust the product viscosity to 3500Cp (25°C) with water, That is, the phosphorus bora chain prepolymer block polyurethane water-based cop...

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Abstract

The invention relates to the technical field of fireproof coatings, in particular to a phosphorus-boron heterochain prepolymer block polyurethane water-based damp-proof flame-retardant carton film coating agent as well as a preparation method and application thereof. the film coating agent comprises the following raw materials: 3.0-7.0% of microcrystalline wax, 15.0-17.0% of water-soluble starch, 10.0-15.0% of a filler, 3.0-5.0% of carboxymethyl cellulose and 60.0-65.0% of phosphorus-boron heterochain prepolymer segmented polyurethane water-based copolymer, wherein the structural formula of the copolymer is shown as the formula (1).The film coating agent for roller coating or spraying on the surface of the carton is prepared by taking the copolymer as a base material, A film layer material dried and cured by the film coating agent on the surface of the carton has the synergistic composite functions of low toxicity, environmental protection, low smoke, zero halogen, long-acting flame retardance, moisture prevention, fire prevention, highlight beautification, friction reduction and wear resistance.

Description

technical field [0001] The invention relates to the technical field of fireproof coatings, in particular to a water-based moisture-proof and flame-retardant carton coating agent of phosphorus-bora chain prepolymer block polyurethane and its preparation method and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] The paper material used for paper packaging belongs to natural organic polymer materials, and its main component is plant cellulose [the general formula is (C 6 h 10 o 5 )n], which determines that the paper packaging box has the characteristics of absorbing water and being damp and flammable in case of fire. Absorption of water and moisture will redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H19/54D21H19/44D21H19/52D21H19/62D21H21/34D21H19/38D21H19/40D21H21/52C08G18/76C08G18/65C08G18/64C08G18/34
CPCD21H27/10D21H19/54D21H19/44D21H19/52D21H19/62D21H21/34D21H19/385D21H19/40D21H21/52C08G18/7614C08G18/348C08G18/6461C08G18/6541
Inventor 郭润兰杜少辉李婷闫银鹏郭军红张建茂崔锦峰李虎林周应萍杨保平田力慕波
Owner 静宁县恒达有限责任公司
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