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High-content red phosphorus flame-retardant master batch

A flame retardant masterbatch, high-content technology, applied in the field of high-content red phosphorus flame retardant masterbatch, to improve the quality of finished products, reduce product costs, and improve the production environment

Inactive Publication Date: 2009-06-17
黄华昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-content red phosphorus flame retardant masterbatch for the shortcomings of existing microcapsule red phosphorus flame retardants and red phosphorus flame retardant masterbatches

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] First prepare raw materials by following weight ratio:

[0043] LDPE 10g

[0044] Red phosphorus 70g

[0045] Zinc borate 20g

[0046] white oil 2g

[0047] N,N'-ethylene bisstearamide 2g

[0048] Blue powder 2g

[0049] Black Powder 4g

[0050] Then, uniformly mix the materials according to the above ratio, then extrude and granulate for 15 minutes with a twin-screw granulator at 90-100°C to obtain the high-content red phosphorus flame-retardant masterbatch of the present invention.

[0051] Take 8g of the flame retardant masterbatch and add it to 100g of low-density polyethylene, and the oxygen index of the prepared flame retardant polyethylene can reach 29. However, the oxygen index of the flame-retardant polyethylene prepared with the same weight ratio of low-content red phosphorus flame-retardant masterbatch is only 25.

Embodiment 2

[0053] First prepare raw materials by following weight ratio:

[0054] Polyamide 10g

[0055] Red phosphorus 50g

[0056] Melamine cyanurate 40g

[0057] white oil 2g

[0058] N,N'-ethylene bisstearamide 2g

[0059] Blue powder 2g

[0060] Black powder 1g

[0061]Then, uniformly mix the materials according to the above ratio, then extrude and granulate for 10 minutes with a twin-screw granulator at 120-130°C to obtain the high-content black red phosphorus flame-retardant masterbatch of the present invention.

[0062] Add 8 g of the flame retardant masterbatch to 100 g of polyamide, and the obtained black flame retardant polyamide has an oxygen index of up to 38, and processing does not require coloring. However, the oxygen index of the flame-retardant polyamide prepared with the same weight ratio of low-content red phosphorus flame-retardant masterbatch is only 31.

Embodiment 3

[0064] First prepare raw materials by following weight ratio:

[0065] Polypropylene 10g

[0066] Red phosphorus 90g

[0067] Magnesium hydroxide 10g

[0068] Triphenyl Phosphate 1g

[0069] N,N'-ethylene bisstearamide 2g

[0070] Then, uniformly mix the materials according to the above ratio, extrude and granulate for 8 minutes with a twin-screw granulator at 140-150°C to obtain the high-content red phosphorus flame-retardant masterbatch of the present invention.

[0071] Take 8g of the flame retardant masterbatch and add it to 100g polypropylene, and the oxygen index of the prepared flame retardant polypropylene can reach 29. However, the oxygen index of flame-retardant polypropylene prepared with the same weight ratio of low-content red phosphorus flame-retardant masterbatch is only 24.

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Abstract

The invention provides a high-content red phosphorus flame retardant master batch, which is essentially prepared by the raw materials with the following weight ratio: 40-90 parts of red phosphorus, 5-20 parts of carrier, 5-50 parts of synergist, 0.5-3 parts of lubricant and 0.5-5 parts of dispersant. Compared with the microcapsule red phosphorus flame retardant, the master batch has the main beneficial effects of solving the safety problems of flammability, inconvenient transport, and the like of the product, effectively solving the problem of bad compatibility between red phosphorus and resin, being able to be directly injected with the carrier, and the like to produce finished product, reducing energy waste, reducing the dust in the production process and improving production environment. Compared with the existing red phosphorus flame retardant master batch with low content of phosphorus, the master batch reduces a half of the using addition amount in rubber injection, which can effectively reduce production cost, reduce the matter property influence of the finished product and improves the quality of the finished product.

Description

(1) Technical field [0001] The invention relates to a high-content red phosphorus flame-retardant masterbatch, which belongs to the field of polymer materials. (2) Background technology [0002] Existing red phosphorus flame retardants are mainly divided into two types: microcapsule red phosphorus flame retardants and red phosphorus flame retardant masterbatches. The disadvantages are as follows: [0003] The main disadvantage of microcapsule red phosphorus flame retardants is that microcapsule red phosphorus flame retardants are flammable powders, which are inconvenient to transport; during the process of flame retardant modification of rubber and plastic materials, dangers such as fire are very easy to occur, and there are relatively large safety hazards; processing Difficulty in cutting flame retardants during the process, uneven dispersion of flame retardants and large areas of dust pollution; [0004] The main disadvantage of the existing red phosphorus flame retardant...

Claims

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Application Information

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IPC IPC(8): C08J3/22C08K13/02C08L67/02C08L23/12C08L77/00C08L23/06C08L55/02C08L67/00C08L71/12B29B9/00C08K3/02
Inventor 黄华昌
Owner 黄华昌
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