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A kind of microcapsule flame retardant of high-efficiency environmental protection multi-layer structure and preparation method thereof

A multi-layer structure and microcapsule technology, which is applied in the direction of microcapsule preparation and microsphere preparation, can solve problems affecting economic benefits and unfavorable development of the flame retardant industry, and achieve good adaptability, reduce adverse effects, and good water resistance sexual effect

Active Publication Date: 2021-07-16
苏州诺博恩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production of microencapsulated flame retardants in my country is relatively small, and in fact most of them still rely on imports, which not only affects the economic benefits of our country, but also is not conducive to the development of my country's own flame retardant industry. High-quality and high-efficiency microcapsule flame retardants can improve the quality of my country's flame-retardant materials, enhance the competitiveness and market share of products in the international market, transform resource advantages into industrial and economic advantages, and improve economic and social benefits. It is of great significance to broaden the application field of products, develop flame retardant technology, and meet the needs of flame retardant material development.

Method used

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  • A kind of microcapsule flame retardant of high-efficiency environmental protection multi-layer structure and preparation method thereof
  • A kind of microcapsule flame retardant of high-efficiency environmental protection multi-layer structure and preparation method thereof
  • A kind of microcapsule flame retardant of high-efficiency environmental protection multi-layer structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 1) Add 3kg of molybdenum trioxide and 10kg of distilled water into the reactor, stir to dissolve, and filter. Then add 6 kg of zinc hydroxystannate into the reaction kettle, mechanically stir at 25°C for 30min, put the product in the ultrasonic wave for 1.5h, and finally place it in a furnace at 250°C for 7h to obtain the product 1. 2) The product 1, the product 1 Add 10% of the total mass of urea and phosphoric acid, 1.6kg urea, and 1kg phosphoric acid into the reaction kettle, connect the tail gas absorption device, heat to 90°C, until the solution becomes clear, the temperature rises to 135°C, react for 2 hours, the solution is viscous Thick, and then put the product in an oven at 210°C for 2.5 hours, cool, and crush to obtain ammonium polyphosphate / tin compound / molybdenum compound microcapsules. 3) Put 12.6kg of melamine, 20.29kg of formaldehyde, and 20.76kg of n-butanol in Reactor No. 1, heat to 70°C, and use 10% Na 2 CO 3 Adjust the pH to 8.5 to obtain...

Embodiment 2

[0043] Example 2 1) Add 3kg of molybdenum trioxide and 10kg of distilled water into the reactor, stir to dissolve, and filter. Add 6 kg of zinc hydroxystannate into the reaction kettle, mechanically stir at 25°C for 30 minutes, place the product in ultrasonic waves for 1.5 hours, and finally place it in a furnace at 250°C to dry for 7 hours to obtain the product 1. 2) The product 1, the product 1 is Add 20% of the total mass of urea and phosphoric acid, 1.6kg urea, and 1kg phosphoric acid into the reaction kettle, connect the tail gas absorption device, and heat to 90°C until the solution becomes clear, then the temperature rises to 135°C, react for 2 hours, and the solution becomes viscous Then put the product in an oven at 210°C to react for 2.5 hours, cool, and pulverize to obtain ammonium polyphosphate / tin compound / molybdenum compound microcapsules. 3) Put 12.6kg of melamine, 20.29kg of formaldehyde, and 20.76kg of n-butanol in Reactor No. 1, heat to 70°C, and use 10% Na ...

Embodiment 3

[0044] Example 3 1) Add 3kg of molybdenum trioxide and 10kg of distilled water into the reactor, stir to dissolve, and filter. Add 6 kg of zinc hydroxystannate into the reaction kettle, mechanically stir at 25°C for 30 minutes, place the product in ultrasonic waves for 1.5 hours, and finally place it in a furnace at 250°C to dry for 7 hours to obtain the product 1. 2) The product 1, the product 1 is Add 30% of the total mass of urea and phosphoric acid, 1.6kg urea, and 1kg phosphoric acid into the reaction kettle, connect the tail gas absorption device, and heat to 90°C until the solution becomes clear, then the temperature rises to 135°C, react for 2 hours, and the solution becomes viscous Then put the product in an oven at 210°C to react for 2.5 hours, cool, and pulverize to obtain ammonium polyphosphate / tin compound / molybdenum compound microcapsules. 3) Put 12.6kg of melamine, 20.29kg of formaldehyde, and 20.76kg of n-butanol in Reactor No. 1, heat to 70°C, and use 10% Na ...

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Abstract

The invention relates to the fields of environment-friendly fire protection and new materials, in particular to a high-efficiency and environment-friendly multi-layer microcapsule flame retardant and a preparation method thereof. A layer-by-layer assembly method is adopted to obtain a microcapsule fire retardant with a multilayer structure in which the core of the capsule is a hybrid of tin compound and molybdenum compound, the capsule wall of the first layer is ammonium polyphosphate, and the capsule wall of the second layer is melamine formaldehyde resin. The melamine formaldehyde resin / ammonium polyphosphate / tin compound / molybdenum compound microcapsule flame retardant prepared by the present invention is resistant to water and humidity, easy to store, high in flame retardant efficiency, excellent in smoke suppression effect, effective in anti-melt droplet, and suitable for use as High-efficiency flame retardant and smoke suppressant for polyester, polyvinyl chloride, polypropylene, polyethylene, epoxy resin, and unsaturated resin, and has strong flame retardant stability, non-corrosive, harmless to the environment and human body, and has broad application prospects.

Description

technical field [0001] The invention relates to the fields of environment-friendly fire protection and new materials, in particular to a high-efficiency and environment-friendly multi-layer microcapsule flame retardant and a preparation method thereof. Background technique [0002] With the development of society, the demand for polymer materials is also increasing, such as high-performance engineering plastics, which are widely used in agriculture, industry, aerospace and other fields. In order to replace a large number of traditional materials such as metal, steel, wood and cement, high-performance composite materials can meet the application requirements and can be recycled and reused, with low cost and in line with the national sustainable development route. However, polymer materials are easy to burn, threatening property and life safety. The early flame retardant modification of polymer materials only focused on the danger of fire. With the development of materials and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/10C08K3/32C08K3/28C08K3/22C08K3/24C08L27/06B01J13/14
CPCB01J13/14C08K3/22C08K3/24C08K3/28C08K3/32C08K9/10C08K2003/2231C08K2003/2255C08K2003/323C08L2201/02C08L27/06
Inventor 王少卿张斌曾少华董炜
Owner 苏州诺博恩新材料科技有限公司
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