Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof

A flame retardant polypropylene and polypropylene material technology, applied in the manufacture of automobile air ducts, blow molding grade halogen-free flame retardant polypropylene materials and their preparation fields, can solve problems such as poor flame retardant performance, and easily guarantee material performance , the process control is simple, the effect of high heat distortion temperature

Inactive Publication Date: 2012-07-04
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]At present, automobile air ducts are mainly blow-molded by high-density polyethylene materials, or injection-molded by polypropylene materials with talcum powder added. The flame retardant level can only reach the UL94 HB level, and the flame retardant performance is not good

Method used

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  • Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof
  • Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof
  • Blow molding grade halogen-free flame-retardant polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 80.6 kg of polypropylene (grade SM256), 0.2 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.2 kg of lubricant EBS (that is, N, N-ethylene bis stearamide), 2 kg of compatibilizer methyl Glycidyl acrylate grafted polypropylene (GMA-PP), 2 kg of toughening agent ethylene-propylene-butadiene terpolymer, 10 kg of intumescent flame retardant FP2200 (a kind suitable for thermoplastic PP, PE, etc. Phosphorus-nitrogen series intumescent flame retardant for polyolefin plastics (produced in Japan) and 5 kg of talcum powder were melt-mixed and dispersed in a twin-screw extruder with a length-to-diameter ratio of 40:1, extruded and granulated to obtain this example Blow molding grade halogen-free flame retardant polypropylene material. The intumescent flame retardant is fed into the twin-screw extruder by side feeding, and the processing temperature is 200°C.

[0031] The performance of present embodiment gained polypropylene material is as follows:

[0032]

Embodiment 2

[0034] 67.5 kg of polypropylene (grade SM256), 0.3 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.2 kg of lubricant EBS (that is, N, N-ethylene bisstearamide), 3 kg of compatibilizer Malay Anhydride-grafted polypropylene (MAH-PP), 4 kg of toughening agent ethylene-octene copolymer, 15 kg of intumescent flame retardant FP2200 (an intumescent phosphorus-nitrogen system suitable for thermoplastic PP, PE and other polyolefin plastics) Flame retardant, produced in Japan) and 10 kg of wollastonite were melted, mixed and dispersed in a twin-screw extruder with an aspect ratio of 40:1, extruded and granulated to obtain the blow molding grade halogen-free flame-retardant Polypropylene material. The intumescent flame retardant is fed into the twin-screw extruder by side feeding, and the processing temperature is 200°C.

[0035] The performance of present embodiment gained polypropylene material is as follows:

[0036]

Embodiment 3

[0038] 54 kg of polypropylene (grade SM256), 0.5 kg of phenolic heat stabilizer Irganox 1010 (CIBA company), 0.5 kg of lubricant calcium stearate, 4 kg of compatibilizer maleic anhydride grafted polypropylene (MAH-PP) , 6 kg of toughening agent hydrogenated styrene-butadiene-styrene triblock copolymer (SEBS), 20 kg of intumescent flame retardant FP2200 (a phosphorus nitrogen system suitable for thermoplastic PP, PE and other polyolefin plastics) Intumescent flame retardant, produced in Japan) and 15 kg of kaolin were melted, mixed and dispersed in a twin-screw extruder with an aspect ratio of 40:1, extruded and granulated to obtain the blow molding grade halogen-free flame retardant of this embodiment Polypropylene material. The intumescent flame retardant is fed into the twin-screw extruder by side feeding, and the processing temperature is 200°C.

[0039] The performance of present embodiment gained polypropylene material is as follows:

[0040]

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Abstract

The invention relates to a blow molding grade halogen-free flame-retardant polypropylene material. A raw material formula of the polypropylene material comprises the following components in percentage by weight: 32-81 percent of polypropylene, 0-1 percent of a thermal stabilizer, 0-1 percent of a lubricant, 2-10 percent of a toughening agent, 10-30 percent of a flame retardant, 2-6 percent of a compatilizer and 5-20 percent of an inorganic filler, wherein the polypropylene is ethylene propylene random copolymerized polypropylene of which the melt flowing rate is 0.01-10 g/10min and the ethylene mole content is less than or equal to 10 percent; and the flame retardant is a halogen-free phosphorus-nitrogen expandable flame retardant. The polypropylene material disclosed by the invention has excellent flame retardance, high thermal deformation temperature and high comprehensive physical property, and is particularly suitable for blow molding of automobile air channels.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a blow molding grade halogen-free flame-retardant polypropylene material and a preparation method thereof, which is especially suitable for manufacturing automobile air ducts. Background technique [0002] At present, automobile air ducts are mainly blow-molded by high-density polyethylene materials, or injection-molded by talc-added polypropylene materials. The flame-retardant grades of these two materials can only reach the UL94 HB level, and the flame-retardant performance bad. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a blow molding grade halogen-free flame-retardant polypropylene material with higher flame-retardant grade and excellent comprehensive mechanical properties. [0004] The present invention also provides a preparation method o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K3/32C08K5/053C08K5/3492B29C47/92B29C48/92
CPCB29C48/625B29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 吉继亮孙刚周英辉陈延安程文超李欣李志平丁超罗忠富
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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