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A kind of polypropylene composition and polypropylene material and its application and drainage pipe

A polypropylene composition and polypropylene material technology, applied in the field of drainage pipes, can solve the problems of not meeting the use requirements of stiffness-toughness balance, poor heat resistance, etc., and achieve the advantages of industrial production, high tensile elastic modulus, preparation simple steps

Active Publication Date: 2018-02-27
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to overcome the defects that the polypropylene pipes in the prior art do not meet the requirements for the rigidity-toughness balance of effective pipes and have poor heat resistance, and provide a polypropylene pipe that can meet the rigidity-toughness balance of effective pipes. Polypropylene compositions and polypropylene materials for polypropylene pipes with good heat resistance and their applications and drainage pipes

Method used

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  • A kind of polypropylene composition and polypropylene material and its application and drainage pipe

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preparation example Construction

[0050] During the preparation of the polypropylene material, the methods and conditions for uniformly mixing the polypropylene resin, the nucleating agent, the antioxidant and the optionally contained color masterbatch are well known to those skilled in the art. The polypropylene resin, the nucleating agent, the antioxidant and the color masterbatch optionally contained are added to the existing various mixing equipment to be stirred and mixed uniformly, wherein the mixing equipment can be, for example, a mixer, a kneader, a Mixers and mixers, etc. The temperature and time of stirring and mixing are well known to those skilled in the art. For example, the temperature of stirring and mixing may be 10-30° C., and the time of stirring and mixing may be 1-5 minutes.

[0051] Preferably, the tensile modulus of elasticity of the polypropylene material is 1400-2300MPa, and the notched impact strength is 70-130KJ / m 2 , the deformation temperature under load under 0.45MPa is 80-120℃. ...

Embodiment 1

[0067] (1) Composition

[0068] Polypropylene resin A1 (produced by Sinopec Beijing Yanshan Branch No. 2 Chemical Plant, impact copolymer of ethylene and propylene, wherein the content of propylene structural units is 96.0% by weight, the content of ethylene structural units is 4.0% by weight, at 230 ° C , the melt mass flow rate under the load of 2.16kg is 0.22g / 10min, the rubber phase content is 7.2% by weight, the polydispersity coefficient is 8.8, and the melting temperature is 166°C), 100 parts by weight,

[0069] Aryl phosphate nucleating agent (NA-21, purchased from Asahi Kasei Corporation, Japan), 0.15 parts by weight,

[0070] Talc powder (purchased from Liaoning Aihai Talc Co., Ltd.), 8.0 parts by weight,

[0071] Tetrakis[beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, 0.3 parts by weight,

[0072] Tris(2,4-di-tert-butylphenyl) phosphite, 0.2 parts by weight,

[0073] Masterbatch (Beijing Jihe Company), 1.5 parts by weight.

[0074]...

Embodiment 2

[0077] (1) Composition

[0078] Polypropylene resin (produced by No. 2 Chemical Plant of Sinopec Beijing Yanshan Branch, impact copolymer of ethylene and propylene, wherein the content of propylene structural unit is 92.0% by weight, and the content of ethylene structural unit is 8.0% by weight. The melt mass flow rate under a 2.16kg load is 0.30g / 10min, the rubber phase content is 8.2% by weight, the polydispersity coefficient is 5.2, and the melting temperature is 167°C), 100 parts by weight,

[0079] Aluminum benzoate nucleating agent NAA3 (purchased from Guangzhou Chenghe Company), 0.30 parts by weight,

[0080] Titanium dioxide (purchased from DuPont Titanium Company, USA), 8.3 parts by weight,

[0081] 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, 0.35 parts by weight,

[0082] Dioctadecyl thiodipropionate, 0.4 parts by weight,

[0083] Masterbatch (Beijing High-tech Co., Ltd.), 2.5 parts by weight.

[0084] (2) Preparation method of polypropy...

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Abstract

The invention discloses a polypropylene composition, a polypropylene material, an application thereof and a drainage pipe. The polypropylene polymer contains a polypropylene resin, a nucleating agent and an antioxidant, the polypropylene resin is an impact polymer of ethylene and propylene, based on the total weight of the polypropylene resin, the content of the ethylene structural unit 2-12% by weight, the content of the propylene structural unit is 88-98% by weight, the content of the rubber phase is 4-16% by weight, the melt mass flow rate of the polypropylene resin under the load of 2.16kg at 230°C The rate is 0.15-0.8g / 10min, and the polydispersity coefficient of the polypropylene resin is 3-13; the nucleating agent contains an organic stiffening nucleating agent and an inorganic nucleating agent. The polypropylene composition provided by the invention has the characteristics of high tensile elastic modulus, high notched impact strength, high ring stiffness, high resistance to impact load and good heat resistance.

Description

technical field [0001] The present invention relates to a polypropylene composition, a polypropylene material prepared from the polypropylene composition, the application of the polypropylene composition or the polypropylene material in the preparation of drainage pipes, and the polypropylene composition Or the drainage pipe made of the polypropylene material. Background technique [0002] Polyethylene and polypropylene, which are superior to other pipes due to their light weight, good thermoplasticity, weldability, and high fracture toughness, corrosion resistance and wear resistance, are extruded to produce different specifications of downpipes. This type of sewer pipe guarantees a high functional safety of the wastewater-sewage piping system for a long period of time. In addition, this material has the advantages of environmental friendliness, low installation costs and unquestionable recyclability, so it is widely used in the field of pipelines. [0003] Generally, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/34C08K5/134C08K5/526C08K3/22C08K5/372C08K3/36C08J3/22
Inventor 高志武杜建强左英飞蒋洁李彦东
Owner CHINA PETROLEUM & CHEM CORP