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A kind of black filled polypropylene composite material and its preparation method and application

A technology of composite materials and polypropylene, which is applied in the field of black filled polypropylene composite materials and its preparation, can solve the problems of reducing product competitiveness and increasing product costs, and achieve the goals of improving heat and oxygen aging resistance, reducing dosage, and reducing dosage Effect

Active Publication Date: 2016-02-10
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such methods usually lead to an increase in product cost and reduce product competitiveness

Method used

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  • A kind of black filled polypropylene composite material and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of a kind of black filled polypropylene composite material

[0052] It is composed of the following raw materials in weight percentage: polypropylene (PPHHP10, Maoming Petrochemical) 98.6%; primary antioxidant 0.2%; secondary antioxidant 0.2%; carbon black 0.6%; processing aid 0.4%.

[0053] The primary antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (antioxidant 1010) 0.2%; the secondary antioxidant is tri[ 2,4-di-tert-butylphenyl]phosphite (antioxidant 168) 0.2%; the carbon black is N330 (iodine absorption value 82mg / g); the processing aid is made of ethylene bis-stearin Amide 0.2% and Calcium Stearate 0.2%.

[0054] The preparation steps are as follows: the mixture of polypropylene, primary antioxidant, secondary antioxidant, carbon black, and processing aids uniformly mixed by a high mixer is passed into the extruder through the main feeding port of the twin-screw extruder through a feeding s...

Embodiment 2

[0055] Embodiment 2: Preparation of a kind of black filled polypropylene composite material

[0056] Composed of the following raw materials in weight percentage: polypropylene (PPHHP10, Maoming Petrochemical) 88.2%; talc powder 10%; primary antioxidant 0.4%; secondary antioxidant 0.4%; carbon black 0.6%; processing aid 0.4% .

[0057] The primary antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (antioxidant 1010) 0.4%; the secondary antioxidant is tri[ 2,4-di-tert-butylphenyl] phosphite (antioxidant 168) 0.4%; the carbon black is N220 (iodine absorption value 121mg / g); the processing aid is made of ethylene bis-stearin Amide 0.2% and zinc stearate 0.2%.

[0058] The preparation steps are as follows: the mixture of polypropylene, primary antioxidant, secondary antioxidant, carbon black, processing aids and talcum powder, which are uniformly mixed by a high mixer, are passed through a twin-screw extruder from different feeding sc...

Embodiment 3

[0059] Embodiment 3: Preparation of a kind of black filled polypropylene composite material

[0060] It is composed of the following raw materials in weight percentage: polypropylene (PPHP500N, China Sea Shell Petrochemical Co., Ltd.) 98.4%; primary antioxidant 0.4%; secondary antioxidant 0.4%; carbon black 0.4%; processing aid 0.4%.

[0061] The primary antioxidant is tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester (antioxidant 1010) 0.4%; the secondary antioxidant is thio Dioctadecyl dipropionate (DSTP) 0.4%; the carbon black is N220 (iodine absorption value 121mg / g); the processing aid consists of 0.2% ethylene bis stearamide and 0.2 calcium stearate %.

[0062] The preparation steps are: feed the mixture of polypropylene, primary antioxidant, secondary antioxidant, carbon black, and processing aids uniformly mixed by a high mixer into the extruder through the main feeding port of the twin-screw extruder. Out of the machine, the extruder i...

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Abstract

The invention belongs to the technical field of polypropylene composites, and discloses a black filling polypropylene composite and a preparation method and application of the black filling polypropylene composite. The black filling polypropylene composite comprises the following component, by mass, 47-98.8% of polypropylene, 0-40% of fillers, 0-10% of elastomers, 0.2-0.8% of primary antioxidants, 0.2-0.8% of the auxiliary antioxidants, 0.4-1.0% of carbon black and 0.4% of processing agents, and the carbon black is furnace carbon black with the 45-145mg / g iodine absorption value. Because the furnace carbon black with the proper iodine absorption value is added to the black filling polypropylene composite, the adverse effect of the furnace carbon black on the hot oxygen aging resisting performance of the polypropylene composite is reduced, the antioxidant content in the polypropylene composite is reduced and the hot oxygen aging resisting performance of the black filling polypropylene composite is improved. The black filling polypropylene composite keeps good dispersity and pigmentation degree, and meanwhile reduces the using amount of the antioxidants and product cost.

Description

technical field [0001] The invention belongs to the technical field of polypropylene composite materials, in particular to a black-filled polypropylene composite material and its preparation method and application. Background technique [0002] In recent years, with the rapid development of the automobile industry, the demand for black PP composite materials is increasing. However, in many cases, polypropylene is required to have a certain heat and oxygen aging resistance. For example, modified polypropylene as an automotive interior material generally requires an aging time of 400 hours or more at 150°C. If it is a PP material near the engine compartment, then The requirements are higher, usually requiring more than or equal to 1000 hours. There are tertiary carbon atoms in the main chain of polypropylene (PP), which are prone to chemical changes under the action of external factors such as heat, oxygen, and ultraviolet rays. Free radicals are formed, and these free radic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/02C08K3/04C08K5/134C08K5/526C08K5/372B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 钱志军王灿耀袁绍彦罗忠富姚程杨波丁超刘乐文
Owner TIANJIN KINGFA NEW MATERIAL
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