Three-source integrated microcapsule intumescent flame retardant and preparation method thereof

An intumescent flame retardant and microencapsulation technology, applied in the field of materials, can solve the problems of reducing the water resistance of the flame retardant system, the flame retardant effect is limited, and the coating effect is affected, and achieves high flame retardant efficiency, good water resistance, and improved The effect of toughness

Inactive Publication Date: 2010-08-25
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
View PDF3 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the flame retardants prepared by these methods are used alone, the flame retardant effect is limited, and the composite material must be compounded with the carbon source to pass a certain flame retardant level, and the introduction of the polyol carbon source will reduce the performance of the flame retardant system. water resistance; moreover, the currently used capsule materials are all thermosetting resins, which are easil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 120 grams of melamine, 5 grams of Na in the reactor with stirring and reflux device 2 CO 3 120 grams of 37% formaldehyde solution and 2000ml of distilled water reacted for 30 minutes at 65°C, then added 160 grams of polyethylene glycol (molecular weight 1000), and continued to react for 100 minutes at 90°C to obtain polyethylene glycol modified melamine - formaldehyde prepolymer.

[0022] Mechanically stir 400 grams of APP and evenly disperse it in 1000 ml of ethanol solution. Add the above prepolymer solution at room temperature, and add ammonium hydrogen phosphate in an amount of 2% of the weight of the prepolymer, stir at 90°C, react for 200 minutes, stop heating and stir to room temperature, filter and dry , to obtain a white microencapsulated intumescent flame retardant.

[0023] The solubility of the obtained product at 25°C is 0.07g / 100mlH 2 O. The flame retardant composite material is prepared by blending the flame retardant with 30% by mass of polyprop...

Embodiment 2

[0025] Feeding and operation were carried out according to Example 1, but the molecular weight of polyethylene glycol was 10,000.

[0026] The solubility of the obtained product at 25°C is 0.10g / 100mlH 2 O.

Embodiment 3

[0028] Feeding and operation were carried out according to Example 1, but the quality of polyethylene glycol was 130 grams, and the quality of 37% formaldehyde aqueous solution was 150 grams.

[0029] The solubility of the obtained product at 25°C is 0.08g / 100mlH 2 O. The flame retardant composite material is prepared by blending the flame retardant with 30% addition amount of polypropylene. The color of the material is white and can pass the V-0 level of UL-94. And after immersing the composite material in hot water at 50°C for 24 hours, the flame retardant grade of the material remains unchanged.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Solubilityaaaaaaaaaa
Solubilityaaaaaaaaaa
Solubilityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a three-source integrated microcapsule intumescent flame retardant and a preparation method thereof. The flame retardant integrates an acid source, a carbon source and a gas source; and the preparation method comprises the following steps of: reacting polyethylene glycol, melamine, aqueous solution of formaldehyde, a promoter with distilled water to prepare polyethylene glycol modified melamine-formaldehyde prepolymer; suspending ammonium polyphosphate powder particles in a dispersing agent; and adding the prepolymer and a hardener to finally obtain the three-source integrated microcapsule intumescent flame retardant powder particles. The flame retardant has good compatibility, flame retardancy and waterproofness.

Description

technical field [0001] The invention relates to the field of materials, in particular to a three-source integrated microencapsulated intumescent flame retardant and a preparation method thereof. Background technique [0002] Among the existing flame retardants, the traditional halogenated flame retardants have the advantages of high flame retardant efficiency and little impact on the basic properties of materials, but they will produce a lot of smoke and dust, corrosive gases and some toxic gases during thermal decomposition and combustion. substances, seriously endangering human health and polluting the environment. Therefore, halogenated flame retardants are gradually being replaced by halogen-free green flame retardants. Intumescent Flame Retardant (IFR for short) is a kind of flame retardant with carbon, nitrogen and phosphorus as the core components. It is one of the more active flame retardants in recent years. IFR is mainly composed of three parts: acid source, car...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K21/14C09K21/04B01J13/14C08L23/12C08L75/04C08K9/10C08K13/02
Inventor 吴昆沈敏敏胡志忠岑学杨
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap