Automotive toughened polypropylene corrugated pipe and preparation method thereof

A polypropylene and corrugated pipe technology is applied in the field of polypropylene toughened corrugated pipes for automobiles and its preparation, which can solve the problems of poor resilience of corrugated pipes, opening phenomenon, overlapping openings of open corrugated pipes, etc., and achieves low manufacturing cost and dosage. Low, few types of effects

Inactive Publication Date: 2015-07-01
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current polypropylene automotive bellows are facing the following general problems: first: the phenomenon of overlapping and opening of the open bellows; second: Poor rebound force after bellows opening is stressed
Third: the problem of spraying frost on the outer wall of the tube
How to effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A polypropylene toughened corrugated pipe for vehicles, made of the following raw materials in parts by weight: 100 parts of polypropylene (PP K8303), 6 parts of polyethylene octene co-elastomer, tetrabromobisphenol A-bis(2, 3 parts of 3-dibromopropyl ether), 1.5 parts of antimony trioxide, 0.5 part of masterbatch and 2 parts of antioxidant; said antioxidant includes main antioxidant 1010, didodecyl thiomalonate and Antioxidant matrix (polyvinyl chloride), the weight ratio between main antioxidant 1010, didodecyl thiomalonate and antioxidant matrix is ​​1:3:4.

[0019] Theoretically, adding elastomers such as POE, EVA, etc. can be used to increase the toughness of the product. In order to achieve the ideal toughness of the material, the amount of elastomer (such as POE) should be very strict, because the introduction of POE will inevitably reduce the oxygen index. In order to make the product reach the corresponding UF94 F-V0 The standard flame retardant requirement re...

Embodiment 2

[0032] A polypropylene toughened corrugated pipe for vehicles is made of the following raw materials in parts by weight: 120 parts of polypropylene, 12 parts of polyethylene octene co-elastomer, tetrabromobisphenol A-bis(2,3-dibromo Propyl ether) 6 parts, 3 parts of antimony trioxide, 2 parts of color masterbatch and 5 parts of antioxidant; Described antioxidant comprises main antioxidant 1010, didodecyl thiomalonate and antioxidant matrix ( Polyethylene), the weight ratio between the main antioxidant 1010, didodecyl thiomalonate and the antioxidant matrix is ​​1:3:4.

[0033]A method for preparing a polypropylene toughened corrugated pipe for vehicles, comprising 120 parts by weight of polypropylene, 12 parts of polyethylene octene co-elastomer, tetrabromobisphenol A-bis(2,3-dibromopropyl ether) 6 parts, antimony trioxide 3 parts, color masterbatch 2 parts and antioxidant 5 parts, after mixing the above raw materials, send them into a single-screw extruder, and obtain Finish...

Embodiment 3

[0036] A polypropylene toughened corrugated pipe for vehicles is made of the following raw materials in parts by weight: 100 parts of polypropylene, 10 parts of polyethylene octene co-elastomer, tetrabromobisphenol A-bis(2,3-dibromo Propyl ether) 4 parts, 2 parts of antimony trioxide, 1 part of color masterbatch and 3.2 parts of antioxidant; Described antioxidant comprises main antioxidant 1010, didodecyl thiomalonate and antioxidant matrix ( Ethylene-vinyl acetate copolymer), the weight ratio between the main antioxidant 1010, didodecyl thiomalonate and the antioxidant matrix is ​​1:3:4.

[0037] A method for preparing a polypropylene toughened corrugated pipe for vehicles, comprising 100 parts by weight of polypropylene, 10 parts of polyethylene octene co-elastomer, tetrabromobisphenol A-bis(2,3-dibromopropyl ether) 4 parts, antimony trioxide 2 parts, color masterbatch 1 part and antioxidant 3.2 parts, after mixing the above raw materials, send them into a single-screw extru...

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PUM

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Abstract

The invention relates to an automotive toughened polypropylene corrugated pipe and a preparation method thereof. The automotive toughened polypropylene corrugated pipe is prepared from the following raw materials in parts by weight: 100-120 parts of polypropylene, 6-12 parts of polyethylene octylene co-elastomer, 3-6 parts of tetrabromobisphenol A-di(2, 3-dibromopropyl ether), 1.5-3 parts of antimonous oxide, 0.5-2 parts of color master and 2-5 parts of antioxidant. The corrugated pipe provided by the invention is a corrugated pipe for the automobile; in order to solve the existed toughness problem of the automotive polypropylene corrugated pipe, the special requirements of the flame retardance, the ageing resistance and the temperature resistance of the corrugated pipe are considered, the formula is integrally adjusted to integrally increase the toughness of the automotive polypropylene corrugated pipe; after toughening modification is performed on the corrugated pipe prepared by the formula provided by the invention, the intensity and the toughness are obtained, the strength requirements such as processing and installation can be met, and the bend property, the abrasive resistance, the temperature resistance, the flame retardant property and the moulding processability are excellent.

Description

technical field [0001] The invention relates to the technical field of corrugated pipe materials, in particular to a polypropylene toughened corrugated pipe for vehicles and a preparation method thereof. Background technique [0002] Bellows is a widely used industrial product, which is widely used in machinery manufacturing, petrochemical industry, instrumentation and various projects. In recent years, it has been extended to aerospace, aviation, shipbuilding, transportation and new construction and other departments. ,have a broad vision of application. Automobile bellows is an industry with great development prospects under the background of automobile lightweight. At present, there are many related production enterprises at home and abroad, but the overall quality varies. With the further development and maturity of the market, the requirements for quality will inevitably become higher and higher. At present, the main raw materials of automotive corrugated pipes are po...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L27/06C08L23/06C08K13/02C08K5/136C08K3/22C08K5/134C08K5/372
CPCC08L23/12C08L2201/02C08L2201/08C08L2203/18C08L2205/03
Inventor 卢志强吉保明马宁王晔苗少斌王辉邹莉
Owner LUOYANG NORMAL UNIV
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