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Flame-retardant polypropylene nanocomposite material special for extruded sheet and preparation method of nanocomposite material

A technology of nanocomposite materials and flame-retardant polypropylene, which is applied in the field of flame-retardant polypropylene nanocomposites for extruded sheets and its preparation, which can solve the problems of difficulty in extrusion molding and inability to prepare high flame-retardant PP composite materials , to achieve the effect of improving flame retardant effectiveness, good mechanical properties and high flame retardancy

Inactive Publication Date: 2017-08-11
SICHUAN GLARY ASIA PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a special flame-retardant polypropylene nanocomposite material for extruded sheet and its preparation method, in order to solve the problems of difficult extrusion molding and inability to prepare high flame-retardant PP composite material in the prior art

Method used

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  • Flame-retardant polypropylene nanocomposite material special for extruded sheet and preparation method of nanocomposite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Use 5.0kg of PP, 1.25kg of decabromodiphenylethane, 0.25kg of antimony trioxide, 0.10kg of nano-montmorillonite, 20g of silane coupling agent KH550, 50g of PPS, 25g of polytetrafluoroethylene micropowder, 15g of silicone powder and EBS 10g prepares the flame-retardant polypropylene nanocomposite material special for extrusion sheet, comprises the following steps:

[0042] (1) Nano-montmorillonite surface treatment, add 100g of nano-montmorillonite and 20g of silane coupling agent KH550 into a high-speed mixer, heat to 60°C, start stirring at 200rpm, stir for 5min, take it out and put it into the additive mixer;

[0043] (2) Add 1.25kg of decabromodiphenylethane, 0.1kg of antimony trioxide, 50g of PPS, 25g of polytetrafluoroethylene micropowder, 15g of silicone powder and 10g of EBS into the additive mixer. Mix the soil for 5 minutes, the stirring speed is 50rpm, take it out and add it to the additive hopper;

[0044] (3) 5.0kg of homopolymerized PP is added to the main m...

Embodiment 2

[0051] With reference to the operation steps of Example 1, different materials and proportions are adopted, and the formulations and effects are shown in Table 1 and Table 2 respectively.

[0052] Table 1 Composition of different groups of flame retardant PP nanocomposites

[0053] Material 1 2 3 4 5 6 7 8 9 10 11 Homo-PP 100 80 100 100 100 100 100 100 100 100 80 Copolymerized PP - 20 - - - - - - - - 20 Decabromodiphenylethane 25 25 - - 20 20 25 25 25 25 25 Brominated PS - - 28 - 8 - - - - - 3.0 brominated epoxy resin - - - 28 - 8 - - - - - Antimony trioxide 5.0 5.0 5.2 5.2 5.2 5.2 5.0 4.0 5.0 5.0 5.2 Zinc borate - - - - - - - -2.0 - - - Montmorillonite 2.0 2.0 2.0 2.0 2.0 2.0 - 2.0 - 2.0 2.0 ZnO - - - - - - 3 - - - - talcum powder - - - - - - - - 3.0 - - KH550 0.2 0.2 0.2 0.2 0.2 0.2 0.2 ...

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Abstract

The invention provides a flame-retardant polypropylene nanocomposite material special for an extruded sheet and a preparation method of the nanocomposite material, and relates to the field of flame-retardant polymeric material preparation. The nanocomposite material is prepared from, by weight, 65-75 parts of PP, 20-30 parts of flame retardant, 5-8 parts of flame-retardant synergist, 0.5-5 parts of carbon-forming agent, 1-5 parts of inorganic nanometer material, 0.5-1.0 part of antioxidant, 0.3-1.0 part of lubricating agent, 0.1-0.5 part of anti-dripping agent and 0.1-0.5 part of silane coupling agent. A composite flame-retardant system containing the bromated flame retardant, the synergist, the carbon-forming agent and the nanometer material is adopted to be subjected to melt blending and extrusion with the PP, and the flame-retardant PP composite material which is high in fire resistance and malleability is prepared; the flame retardant rating of the composite material reaches 0.4 mm, namely the V-O level (UL94), the elongation percentage is up to 30%, and the material processing property completely meets the requirements of the melt extruded sheet technology.

Description

technical field [0001] The invention relates to the field of preparation of polymer flame-retardant materials, in particular to a special flame-retardant polypropylene nanocomposite material for extruded sheets and a preparation method thereof. Background technique [0002] Polypropylene (PP) has many advantages such as light specific gravity, easy processing, and chemical resistance. It is widely used. Its oxygen index is 18%. The flame resistance of PP can be improved by adding flame retardants, but compared with other polymers In order to improve the flame resistance of PP, it is necessary to add a larger amount of flame retardants. There are fewer types of flame retardants to choose from. In the last century, most of them added octabromodiphenyl ether with good flame retardant effect. [0003] After the European Union launched the Rosh Directive in 2004, the use of octabromodiphenyl ether and decabromodiphenyl ether was banned. In recent years, the industry has launched...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/14C08L27/18C08L63/00C08L83/04C08K13/06C08K9/06C08K3/34C08K3/22C08K3/38C08K5/20C08K5/03
CPCC08K2003/2296C08K2003/387C08L23/12C08L2201/02C08L23/14C08L27/18C08L25/06C08L63/00C08L83/04C08K13/06C08K9/06C08K3/346C08K3/2279C08K3/38C08K3/22C08K3/34C08K5/20C08K5/03
Inventor 邓凯桓谭江梅
Owner SICHUAN GLARY ASIA PLASTIC TECH
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