Flame retardant polypropylene (PP) material and its preparation method

A technology of flame retardant polypropylene and flame retardant, which is applied in the field of flame retardant polypropylene material and its preparation, can solve the problems of poor scratch resistance and meet the requirements of flame retardant and scratch resistance, scratch resistance Good performance, mechanical performance, environmental protection and flame retardant effect

Inactive Publication Date: 2012-03-07
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the scratch resistance of flame-retardant polypropylene used in various household appliances and electronic instruments is poor, an

Method used

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  • Flame retardant polypropylene (PP) material and its preparation method

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Experimental program
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Example Embodiment

[0036] Example 1

[0037] According to weight percentages, PP resin 57%, decabromodiphenylethane 15%, antimony trioxide 5%, silicone 1%, reactive high polysiloxane 1%, talc 20%, antioxidant 0.3% , Lubricant 0.7%, mixed in a high-speed mixer for 3-5 minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. The extrusion process is: 170-180°C in the first zone, 180-190°C in the second zone, 180-190°C in the third zone, 175-185°C in the fourth zone, screw speed 350-400r / min, feeding frequency 20-25Hz, melt Pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

Example Embodiment

[0038] Example 2

[0039] By weight percentage of PP resin 56%, decabromodiphenylethane 16%, antimony trioxide 5%, silicone 1%, reactive high polysiloxane 1%, talc 20%, antioxidant 0.3% , Lubricant 0.7%, mixed in a high-speed mixer for 3-5 minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder for melt extrusion and granulation. The extrusion process is: 170-180°C in the first zone, 180-190°C in the second zone, 180-190°C in the third zone, 175-185°C in the fourth zone, screw speed 350-400r / min, feeding frequency 20-25Hz, melt Pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

Example Embodiment

[0040] Example 3

[0041] According to weight percentage, PP resin 55%, decabromodiphenylethane 17%, antimony trioxide 5%, silicone 1%, reactive high polysiloxane 1%, talc 20%, antioxidant 0.3% , Lubricant 0.7, mixed in a high-speed mixer for 3-5 minutes, the speed of the high-speed mixer is 800 rpm; then the mixed raw materials are placed in a parallel twin-screw extruder to be melted, extruded and granulated. The output process is: 170-180℃ in the first zone, 180-190℃ in the second zone, 180-190℃ in the third zone, 175-185℃ in the fourth zone, screw speed 350-400r / min, feeding frequency 20-25Hz, melt pressure 3.0-4.0MPa, vacuum degree -0.03~-0.06MPa.

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Abstract

The invention discloses a flame retardant polypropylene material and its preparation method. The flame retardant polypropylene material comprises the following components by weight: 50-60% of PP resin; 20-30% of a fire retardant; 10-30% of filler; 0.2-5% of a scraping resistant agent; 0.1-0.5% of an anti-oxidant; and 0.5-1.0% of a lubricant. Specifically, the PP resin is homopolymerized PP; the fire retardant is compounded by decabromodiphenylethane and antimonony oxide; the scraping resistant agent is compounded by silicone and siloxane; and the lubricant is a stearate lubricant. The flame retardant PP material has the advantages of good scraping resistant performance on the surface, excellent mechanical performance, and environmental protection as well as flame retardation, thus being able to meeting the demands of household electrical appliances and electronic instruments on flame retardation and scraping resistant performances.

Description

[technical field] [0001] The invention relates to the field of polymer materials, in particular to a flame-retardant polypropylene material and a preparation method thereof. [Background technique] [0002] Polypropylene (PP) is one of the five general-purpose plastics, with a density of 0.90g / cm 3 , is the second lightest polymer material in existing resins (only greater than polymethylpentene, density 0.85g / cm 3 ). Because of its good performance, small specific gravity, and easy molding and processing, it is widely used in the automobile industry, household appliances, electronic instrument industry, and textile industry. [0003] However, because the limiting oxygen index of PP resin is very low, only 18, it is a flammable material, which cannot meet the requirements for the use of specific materials in the field of fire prevention, so that its application in household appliances, electronic instruments and other fields is limited to a certain extent. With the continuo...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L83/04C08K13/02C08K5/03C08K3/22B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92514B29C2948/9259B29C2948/92704B29C2948/92828B29C2948/92885B29C2948/92895
Inventor 徐东徐永安林林
Owner SHENZHEN KEJU NEW MATERIAL
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