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Bio-based high-efficiency flame-retardant paint with universality, preparation method and application thereof

A flame retardant coating, bio-based technology, applied in fire retardant coatings, flame retardant fibers, chitin polysaccharide coatings, etc., can solve the problems of performance gap, deterioration of polymer mechanical properties, narrow applicability, etc., and achieve excellent thermal stability. Performance and barrier properties, effects of excellent thermal stability and barrier properties, good adhesion and stability

Active Publication Date: 2019-02-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used solution is to add flame retardants to polymer materials to improve their flame retardant properties, but additive flame retardants have the following problems: (1) Narrow applicability, performance in different polymers is different Huge gap; (2) Dispersed in the polymer, it cannot be concentrated when burning, resulting in low flame retardant efficiency, and a large amount of addition is required to achieve the required flame retardant performance; (3) Large additions will lead to Severe deterioration of the mechanical properties of the polymer itself
Many of these flame retardants have certain toxicity. When they are used to prepare flame retardant coatings, they are easy to migrate into the environment, which will not only destroy the stability of the ecological environment, but also affect the human body and other organisms. Accumulate in the body, causing long-term toxic effects

Method used

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  • Bio-based high-efficiency flame-retardant paint with universality, preparation method and application thereof
  • Bio-based high-efficiency flame-retardant paint with universality, preparation method and application thereof
  • Bio-based high-efficiency flame-retardant paint with universality, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) Intercalation modification of layered nanomaterials: Add 300mL deionized water and 3.00g (about 2.3mmol) montmorillonite into a 500mL four-necked flask at 3‐5°C, and stir ultrasonically for 30min to make the montmorillonite Fully disperse the soil; dissolve 0.91g (2.5mmol) cetyltrimethylammonium bromide in 50mL deionized water, add it dropwise into the reactor within 0.5h under ultrasonic stirring, continue ultrasonic stirring for 2h, and then Stop ultrasonication and continue stirring for 12 hours; prepare 10 mL of hydrochloric acid solution with a concentration of 1 mol / L, add it dropwise into a four-necked flask within 20 minutes under ultrasonic stirring, and continue ultrasonic stirring for 1 hour; centrifuge the mixed solution after the reaction, and the precipitate Wash twice with deionized water and propanol, and then disperse in 300mL propanol by ultrasonic stirring to form a suspension;

[0034] 2) Synthesis of functionalized layered nanomaterials: Add step...

Embodiment 2

[0042] The difference between this example and Example 1 is that in step 1), 3.00g (about 2.3mmol) montmorillonite is replaced by 3g (11.6mmol) kaolin, and the amount of intercalation agent is changed to 4.37g (12.0mmol), adding After the intercalation agent, the ultrasonic stirring time was extended to 3h, and the continuous stirring time was extended to 16h after the ultrasonic was stopped. The amount of hydrochloric acid solution was changed to 20mL. In step 2), the amount of silane coupling agent was changed to 3.22g (11.6mmol). In step 3), 2.00 g of functionalized montmorillonite is replaced by 2.00 g of functionalized kaolin. The flame retardant performance test results are shown in Table 1, the test results of the coating stability and water resistance are shown in Table 2, and the relevant test methods are the same as in Example 1.

Embodiment 3

[0044] The difference between this example and example 1 is: in step 1), 3.00g (about 2.3mmol) montmorillonite is replaced by 3.00g (10.0mmol) zirconium phosphate, 0.91g (2.5mmol) hexadecyltrimethyl Ammonium bromide was replaced by 5.2g (20.0mmol) tetrabutylammonium hydroxide, the intercalation agent dropping time was extended to 1h, and the continuous stirring time was extended to 16h after the ultrasound was stopped. In step 2), the amount of silane coupling agent was changed to 2.78g (10.0mmol). In step 3), 2.00 g of functionalized montmorillonite was replaced with 2.00 g of functionalized zirconium phosphate. The flame retardant performance test results are shown in Table 1, the test results of the coating stability and water resistance are shown in Table 2, and the relevant test methods are the same as in Example 1.

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Abstract

The invention discloses a bio-based high-efficiency flame-retardant paint with universality, a preparation method and an application thereof. The preparation method firstly intercalates a layered nanomaterial by using an intercalation agent, and performs acidification to remove the intercalation agent, then the modified layered nano material is reacted with a silane coupling agent, an active function group is accessed to the surface, and the functionalized layered nano material is prepared. Then, the functionalized layered nano material is dispersed in water together with a chain natural polymer material to prepare the bio-based flame-retardant paint with universality. Compared with the prior art, the flame-retardant coating of the present invention has wide applicability and can be applied to polymer articles such as films, cotton fabrics and foams by a convenient method such as dip coating, brush coating and spray coating. The formed flame-retardant coating has high-efficiency flameretardant performance, excellent stability and water resistance, is safe and environmentally friendly, and can be widely used in the fields transportation, furniture, building decoration and wire andcable with high requirements for flame retardation and environmental protection.

Description

technical field [0001] The invention relates to the preparation of flame-retardant coatings, in particular to a universally applicable bio-based high-efficiency flame-retardant coating and its preparation method and application. Background technique [0002] With the wide application of polymer materials in many fields such as transportation, furniture and electrical appliances, and architectural decoration, the threat of flammable defects of polymer materials to people's life and property safety has also increased. At present, the most commonly used solution is to add flame retardants to polymer materials to improve their flame retardant properties, but additive flame retardants have the following problems: (1) Narrow applicability, performance in different polymers is different Huge gap; (2) Dispersed in the polymer, it cannot concentrate when burning, resulting in low flame retardant efficiency, and a large amount of addition is required to achieve the required flame reta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D105/08C09D5/18C08J7/04C08J9/42C08L67/02C08L75/04D06M15/03D06M11/79D06M101/06
CPCC08J7/0427C08J9/42C08J2367/02C08J2375/04C08J2405/08C09D5/18C09D105/08D06M11/79D06M15/03D06M2101/06D06M2200/30C08K9/04C08K9/06C08K3/346C08K7/00
Inventor 赖学军谢华理曾幸荣李红强
Owner SOUTH CHINA UNIV OF TECH
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