Halogen-free flame-retardant polypropylene material and preparation method thereof

A technology of flame-retardant polypropylene and polypropylene resin, which is applied in the field of polymer materials and its preparation, can solve the problems of aggravated flame propagation, easy occurrence of molten droplets and casting fire, easy combustion, etc., and achieves easy operation and good industrial application Value, the effect of no three wastes

Inactive Publication Date: 2013-03-13
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oxygen index of PP is only 17-18%, which is easy to burn and prone to melt droplets and casting fires. A large amount of unsaturated gas generated during the combustion process can aggravate the flame propagation, thus limiting its further application.

Method used

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  • Halogen-free flame-retardant polypropylene material and preparation method thereof

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Embodiment 1

[0020] Weigh 100 parts of magnesium hydroxide, 180 parts of aluminum hydroxide, 30 parts of zinc borate, 15 parts of 3-hydroxyphenylphosphorylpropionic acid, 30 parts of ammonium polyphosphate, 10 parts of melamine cyanurate, 6 parts of starch, and 5 parts of talcum powder 3 parts, 3 parts of hindered phenol (AO60) were put into a high-speed mixer and mixed for 5 minutes, then added 180 parts of polypropylene resin, 30 parts of toughening agent POE, 15 parts of compatibilizer POE-g-MAH, 3 parts of lubricant, anti-ultraviolet 2.5 parts of the agent, mixed at high speed for 20 minutes, discharged, extruded and granulated in a twin-screw extruder, and dried at 100°C for 5 hours to obtain a halogen-free flame-retardant polypropylene composite material.

[0021] The dried pellets were injection-molded with an injection molding machine to prepare test samples, and tested for vertical combustion (UL 94), limiting oxygen index (LOI), tensile properties, and impact properties. The test ...

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Abstract

The invention relates to a high polymer material and a preparation method thereof, particularly a halogen-free flame-retardant polypropylene material and a preparation method thereof. The halogen-free flame-retardant polypropylene material is prepared from the following components in parts by weight: 170-200 parts of polypropylene resin, 380-400 parts of inorganic composite flame retardant, 30-50 parts of toughener POE (ethylene-octylene copolymer), 10-15 parts of compatilizer POE-g-MAH (POE grafted maleic anhydride), 3-5 parts of lubricant and 2-4 parts of anti-ultraviolet agent. The preparation method comprises the following steps: proportionally mixing polypropylene resin, toughener, compatilizer, lubricant, anti-ultraviolet agent and the like at high speed, granulating by extrusion, and carrying out injection molding to obtain the halogen-free flame-retardant polypropylene composite material. The tests of vertical burning, limited oxygen index, tensile property, impact property and the like prove that the composite material has excellent flame retardancy and mechanical properties, and has favorable industrial application value.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, in particular to a halogen-free flame-retardant polypropylene material and a preparation method thereof. Background technique [0002] The flame retardant research of polymer materials has gone through the development process of halogen-containing flame retardant, low-halogen flame retardant to halogen-free flame retardant, because plastic products containing halogen flame retardants will produce a lot of smoke and toxic and corrosive The gas is harmful to the respiratory tract and other organs of the human body, and even causes suffocation and threatens life. At present, industrialized countries have begun to ban the use of plastic products containing halogen flame retardants. Inorganic flame retardants have good thermal stability, are non-volatile, non-toxic and non-corrosive, and do not cause secondary pollution during combustion. Their research and development will inevit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L3/02C08K13/02C08K3/22C08K3/38C08K3/32C08K5/523C08K5/3492
Inventor 梁兵刘世军曹俊
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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