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Blow molding type halogen-free flame-retardant polypropylene material

A flame-retardant polypropylene, blow-molded technology, applied in the field of blow-molded halogen-free flame-retardant polypropylene materials, can solve the problems of corrosion processing equipment, low impact strength, toxic smoke, etc., and achieve the reduction of additives, mechanical properties and Effects of improved combustion performance and improved dispersibility

Inactive Publication Date: 2011-12-21
应急管理部四川消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the matrix resin of the flame-retardant polypropylene material is the traditional ordinary PP resin. After flame-retardant modification, the melt index is 8 g / 10min, which cannot meet the processing requirements of hollow blow molding and is only suitable for injection molding. , the tensile strength of the flame-retardant polypropylene material is 28.5MPa, the Izod notched impact strength is 6.8KJ / M2, and the vertical combustion reaches UL94V0 level. The disadvantage is that the impact strength is low and the toughness Poor, unable to meet the requirements of V-notch impact strength greater than 8 KJ / M2 for furniture and seats
On the other hand, the flame retardant of this material is a composite flame retardant of halogenated aliphatic phosphate and antimony oxide, which still belongs to the flame retardant category of halogen antimony system. When burning in a fire, there is a large amount of smoke, toxic smoke and corrosion processing. Defects such as equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Component distribution ratio is by weight:

[0018] Polypropylene resin A 100

[0019] Phosphorus nitrogen intumescent halogen-free composite flame retardant 60.5

[0020] Resin Modifier 15

[0021] (ethylene vinyl acetate, maleic anhydride grafted ethylene-octene copolymer)

[0022] Antioxidant 0.4

[0023] Tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate)pentaerythritol ester

[0024] UV absorber 1

[0025] (2-Hydroxy-4-n-octyloxybenzophenone)

[0026] light stabilizer 1

[0027] Oligo-[[6-[(1,1,3,3-tetramethylbutyl)-imino]-1,3,5-triazine-2,4-diyl] [2-(2, 2,6,6-tetramethylpiperidinyl)-amino]-hexylidene-[4-(2,2,6,6-tetramethylpiperidinyl)-imino]]

[0028] Pigment 0.3

[0029] Processing aids 2

[0030] (polyethylene wax, calcium stearate)

[0031] Wherein, the proportioning of composite flame retardant is by weight:

[0032] Basic flame retardant 60 (ammonium polyphosphate: char forming agent (pentaerythritol, starch, pentaerythritol ...

Embodiment 2

[0035] Embodiment 2: Components are by weight:

[0036] Polypropylene resin A 70

[0037]Polypropylene resin B 30

[0038] Composite flame retardant 85

[0039] Resin Modifier 20

[0040] (maleic anhydride grafted polypropylene, ethylene vinyl acetate)

[0041] Antioxidant 1

[0042] (Tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) pentaerythritol ester,

[0043] Dilauryl Thiodipropionate)

[0044] UV absorber 0.3

[0045] 2-(2'-Hydroxy-3',5-di-tert-butylphenyl)benzotriazole

[0046] light stabilizer 2

[0047] (poly(1-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine) succinate, oligo-[[6-[(1,1,3,3-tetra Methylbutyl)-imino]-1,3,5-triazine-2,4-diyl][2-(2,2,6,6-tetramethylpiperidinyl)-amino]-ylidene Hexyl-[4-(2,2,6,6-tetramethylpiperidinyl)-imino]] Pigment 0.5

[0048] Other processing aids 3

[0049] (polypropylene wax, calcium stearate, zinc stearate)

[0050] Wherein, the compounding of composite flame retardant is by weight:

[0051] Basic Flame...

Embodiment 3

[0056] Example 3: Component distribution ratio is by weight:

[0057] Polypropylene resin A 50

[0058] Polypropylene resin B 20

[0059] Polypropylene resin C 30

[0060] Composite flame retardant 40

[0061] Resin Modifier 3

[0062] Maleic anhydride grafted polyethylene

[0063] Antioxidant 2.0

[0064] (Tetrakis(β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) pentaerythritol ester,

[0065] Tris[2.4-di-tert-butylphenyl]phosphite, dilauryl thiodipropionate)

[0066] UV absorber 2

[0067] 2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole

[0068] Light stabilizer 0.3

[0069] Bis(2,2,6,6-tetramethylpiperidine) sebacate

[0070] Pigment 0.05

[0071] Processing Aids 1

[0072] (polyethylene wax, N,N’-ethylene bisstearamide, calcium stearate) Among them, the composite flame retardant is:

[0073] Basic Flame Retardant 35

[0074] (Ammonium polyphosphate: char forming agent (tripentaerythritol, nylon 6): melamine derivatives (melamine cyanurate, ...

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Abstract

The invention provides a blow molding type halogen-free flame-retardant polypropylene material, which comprises the following components in part by weight: 100 parts of polypropylene, 40 to 85 parts of phosphorus-nitrogen series expanded halogen-free composite flame retardant, 3 to 20 parts of resin modifier, 0.05 to 0.5 part of pigment, 0.4 to 2.0 parts of antioxidant, 0.3 to 2.0 parts of ultraviolet absorbent, 0.3 to 2.0 parts of light stabilizer, and 1.0 to 3.0 parts of other processing aids. The material has good tensile strength, high impact strength, good low-temperature performance and excellent flame-retardant performance, and is particularly suitable for hollow blow molding type small and large components of automobiles, furniture and the like.

Description

technical field [0001] The present invention relates to flame retardant polypropylene materials. Background technique [0002] Chinese patent 101704973A discloses a light-weight, impact-resistant flame-retardant polypropylene and its preparation method. Its components include 70% to 80% of polypropylene by weight percentage, and 6% to 10% of flame retardant halogen aliphatic phosphate %, antimony oxide 3%~8%, toughening agent 5%~8%, nano kaolin 5%~10%, antioxidant 0.1%~0.5%, antioxidant adjuvant 0.1%~0.5%, hexenyl Bis stearamide 0.1% ~ 1%. Among them, the matrix resin of the flame-retardant polypropylene material is the traditional ordinary PP resin. After flame-retardant modification, the melt index is 8 g / 10min, which cannot meet the processing requirements of hollow blow molding and is only suitable for injection molding. , the tensile strength of the flame-retardant polypropylene material is 28.5MPa, and the notched impact strength of the Izod beam is 6.8KJ / M 2 , the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/06C08K9/10C08K3/32C08K5/3492C08K3/02C08K3/34C08K9/04C08K3/38C08K5/54C08L23/08C08L31/04C08L51/06
Inventor 李碧英卢国建张泽江张帆周晓勇李利君张翔
Owner 应急管理部四川消防研究所
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