A kind of environment-friendly flame-retardant plastic masterbatch that prevents blowout frost precipitation and its preparation method

A flame-retardant plastic, environmentally friendly technology, applied in the field of flame-retardant plastics, to achieve the effect of increasing compatibility, reducing the release of small molecules, and excellent hydrophobicity

Active Publication Date: 2020-05-01
ZHEJIANG LINXIANG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to fundamentally solve the precipitation problem of ammonium polyphosphate by using the existing single compatibilizer technology

Method used

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  • A kind of environment-friendly flame-retardant plastic masterbatch that prevents blowout frost precipitation and its preparation method
  • A kind of environment-friendly flame-retardant plastic masterbatch that prevents blowout frost precipitation and its preparation method
  • A kind of environment-friendly flame-retardant plastic masterbatch that prevents blowout frost precipitation and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Grinding the silicone powder and aluminum sulfate, then adding deionized water to obtain the aluminum sulfate composite liquid for dispersing the silicone powder for subsequent use; wherein the mass ratio of silicone powder, aluminum sulfate, and deionized water is 1:5:20 ;

[0040] (2) Compound long-chain ammonium polyphosphate with n>500, commercially available phosphorus content greater than 14%, and melamine polyphosphate salt with nitrogen content greater than 38% at a mass ratio of 3:1, and obtain the particle size by vortex jet mill treatment Composite micropowder less than 5μm;

[0041] (3) Add the composite micropowder into the airtight container to ensure that the amount of the composite micropowder in the airtight container does not exceed 1 / 3 of the capacity of the airtight container, fill the airtight container with ammonia gas, control the temperature of the container to 45°C, and stir at a high speed of 800rpm , the composite micropowder is preferabl...

Embodiment 2

[0046] (1) Grinding the silicone powder and aluminum sulfate, then adding deionized water to obtain the aluminum sulfate composite liquid for dispersing the silicone powder for subsequent use; wherein the mass ratio of silicone powder, aluminum sulfate, and deionized water is 1:5:20 ;

[0047] (2) Compound long-chain ammonium polyphosphate with n>500, commercially available phosphorus content greater than 14%, and melamine polyphosphate salt with nitrogen content greater than 38% at a mass ratio of 3:1, and obtain the particle size by vortex jet mill treatment Composite micropowder less than 5μm;

[0048] (3) Add the composite micropowder into the airtight container to ensure that the amount of the composite micropowder in the airtight container does not exceed 1 / 3 of the capacity of the airtight container, fill the airtight container with ammonia gas, control the temperature of the container to 35°C, and stir at a high speed of 1200rpm , the composite micropowder is preferab...

Embodiment 3

[0053] (1) Grinding the silicone powder and aluminum sulfate, then adding deionized water to obtain the aluminum sulfate composite liquid for dispersing the silicone powder for subsequent use; wherein the mass ratio of silicone powder, aluminum sulfate, and deionized water is 1:5:20 ;

[0054] (2) Compound long-chain ammonium polyphosphate with n>500, commercially available phosphorus content greater than 14%, and melamine polyphosphate salt with nitrogen content greater than 38% at a mass ratio of 3:1, and obtain the particle size by vortex jet mill treatment Composite micropowder less than 5μm;

[0055] (3) Add the composite micropowder into the airtight container to ensure that the amount of the composite micropowder in the airtight container does not exceed 1 / 3 of the capacity of the airtight container, fill the airtight container with ammonia gas, control the temperature of the container to 45°C, and stir at a high speed of 1200rpm , the composite micropowder is preferab...

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Abstract

The invention relates to the technical field of flame-retardant plastics, in particular to an environmentally friendly flame-retardant plastic masterbatch that prevents blowout and precipitation and a preparation method thereof. Ammonium polyphosphate and melamine polyphosphate are compounded and micronized, and the surface of the micronized composite micropowder is coated to form an aluminum hydroxide coating, and the silicone powder is formed in the coating while the aluminum hydroxide coating is formed, and then It is extruded and granulated with fillers, lubricating aids, silicone oil, polypropylene and compatibilizers by twin-screws to obtain an environmentally friendly flame-retardant plastic masterbatch that prevents blooming and precipitation. By converting the aluminum salt solution into an aluminum hydroxide coating, the dispersed silicone powder is pre-stabilized and coated on the surface of ammonium polyphosphate, which endows ammonium polyphosphate with excellent hydrophobicity, thereby enhancing the dispersibility and property of flame retardants in plastics Compatibility, in particular, silicone powder has good stability and non-migration, and after stabilizing the coated ammonium polyphosphate, it can effectively prevent its blooming and precipitation.

Description

technical field [0001] The invention relates to the technical field of flame-retardant plastics, in particular to an environmentally friendly flame-retardant plastic masterbatch that prevents blowout and precipitation and a preparation method thereof. Background technique [0002] Since plastics are mainly non-polar materials, and flame retardants are generally fillers or polar meltables, when flame retardants are used in plastics, the compatibility between flame retardants and plastics is poor, and it is easy to bloom and precipitate, which not only affects The glossiness of the appearance of the product, and it will lead to the deterioration of the strength of the plastic product. Plastic products with high requirements for flame retardants are generally electrical products, which need to add more flame retardants. The precipitation of flame retardants seriously affects the appearance quality of plastic products. In addition, with the precipitation of flame retardants, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K9/10C08K3/32C08K5/3492C08K3/22C08J3/22
CPCC08J3/226C08J2323/12C08J2423/12C08K5/34928C08K9/10C08K2003/2227C08K2003/323
Inventor 王翼福
Owner ZHEJIANG LINXIANG PLASTIC
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