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High concentration plastic nano flame-proof agglomerate production method

A technology of nano flame retardant and production method, applied in fire retardant coatings and other directions, can solve the problems of large decline in mechanical properties, large decline in material properties, poor dispersion effect, etc., and achieve the effects of low cost, improved material properties, and excellent physical and chemical indicators.

Inactive Publication Date: 2006-11-22
李彦波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to factors such as technical level, equipment conditions or process control, the use of powdered flame retardants has many problems such as cumbersome procurement, poor dispersion, poor flame retardant effect, large material performance degradation, dust pollution, and complicated processes.
[0003] At present, most of the flame retardant masterbatches produced are granulated after simple compounding of several products. Disadvantages such as average effect and poor dispersion effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0053] Embodiment 2: one, adopt the parts by weight ratio component described in the following table

[0054] Component

Content (parts by weight)

Antimony trioxide

20

Decabromodiphenyl ether or decabromodiphenylethane

60

Nano Magnesium Hydroxide

6

EVA(VA18-MI3)

10

Antioxidant B-215

0.27

polyethylene wax

1.2

Coupling agent KH550

0.4

Silane coupling agent A-174

Surface active dispersant K0-311

Thinner ethanol

0.45

0.4

1.2

[0055] 2. Production method:

[0056] 1. Surface modification of powdered flame retardants;

[0057] After weighing antimony trioxide and decabromodiphenylethane flame retardants, put them into a high-speed mixer (speed: 3000 rpm), and start high-speed stirring and mixing for 6 minutes. Put in the coupling agent KH550, mix for 3 minutes, put the surface coupling activated material into the low-speed stirring tank (speed: 120 rpm), and keep s...

Embodiment 4

[0073] 2. Production method:

[0074] 1. Surface modification of powdered flame retardants;

[0075] After weighing antimony trioxide and decabromodiphenyl ether flame retardants, put them into a high-speed mixer (speed: 2700 rpm), start high-speed stirring and mixing for 6 minutes. Put in the coupling agent KH550, mix for 5 minutes, put the surface coupling activated material into the low-speed stirring tank (speed: 150 rpm), and keep stirring.

[0076] 2. After weighing the nano-magnesium hydroxide material, heat up the high-speed mixer to 85°C, put it into the high-speed mixer, and start high-speed stirring.

[0077] Add the above-mentioned coupling agent, dispersant, and surfactant to anhydrous ethanol to dilute evenly, spray into the high-speed mixer with high-pressure mist, and spray in three times within 6 minutes. After stirring for 15 minutes, the temperature of the material reaches 80°C. The nanomaterials are fully activated, quickly put into the above-menti...

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PUM

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Abstract

The invention relates to a process for producing high concentration plastic nanometer flame-proof agglomerates, which comprises carrying out powdery combustion inhibitor surface modification, high speed kneading, mixing homogeneously, activation processing. According to the disclosed process, nanometer magnesium hydroxide is employed to charge silicane coupling agent A-174%, surface active dispersing agent KO-311 are charged into anhydrous alcohol for homogeneous dilution, finally spraying into homogenizer using high pressure mist.

Description

technical field [0001] The invention relates to a method for producing high-concentration plastic nano flame-retardant master batches. technical background [0002] At present, most of the halogen-based, chlorine-based, antimony-based, phosphorus-based, nitrogen-based or inorganic flame retardants used in most plastics are powder products. These flame retardants need to be compounded with a variety of products, extruded and granulated by a granulator, and used for plastic drawing, extrusion, injection molding, coating and other product molding. Due to factors such as technical level, equipment conditions or process control, the use of powdered flame retardants has many problems such as cumbersome procurement, poor dispersion, poor flame retardant effect, large decline in material performance, dust pollution, and complicated processes. [0003] At present, most of the flame retardant masterbatches produced are granulated after simple compounding of several products. The eff...

Claims

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Application Information

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IPC IPC(8): C08L23/08B29B9/12B29C47/40C08K3/22C08K5/06C08K5/54C08L23/06C09K21/14
Inventor 李彦波
Owner 李彦波
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