Toughened modified material for PE pipes and preparation method thereof

A toughening modification and modification technology, applied in the field of toughening modified materials for PE pipes and its preparation, can solve the problems of easy agglomeration, inability to strengthen and toughen, poor compatibility between fly ash and PE matrix, etc. problems, to achieve the effect of increasing melting temperature, improving flexibility and improving compatibility

Inactive Publication Date: 2020-01-31
界首市奥胜达塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this application, the compatibility between fly ash and PE matrix is ​​poor, and agglomeration is easy to occur, which cannot effectively strengthen and toughen.

Method used

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  • Toughened modified material for PE pipes and preparation method thereof

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Comparison scheme
Effect test

preparation example Construction

[0047] A preparation method for a toughened modified material for PE pipes, comprising the steps of:

[0048] The first step, take polyethylene resin, modified polyethylene octene co-elastomer, modified montmorillonite and maleic anhydride grafted polyethylene by parts by weight, place in a high-speed mixer, and heat up to 170-180 ℃, 1000r / min stirring and mixing for 15-18min, then add antioxidant, lubricant and plasticizer, reduce the speed to 800r / min and continue stirring and mixing for 10-12min to obtain a mixture;

[0049] In the second step, adding the mixed material to a twin-screw extruder to extrude and granulate to obtain a toughened modified material;

[0050] Among them, the screw speed is 80r / min; the temperature of each zone is 172, 190, 210, 210, 210, 210°C respectively.

Embodiment 1

[0052] A toughened modified material for PE pipes, made of the following raw materials in parts by weight: 90 parts of polyethylene resin (PE), 5 parts of modified polyethylene octene co-elastomer (POE), 8 parts of modified montmorillonite , 3 parts of maleic anhydride grafted polyethylene, 0.3 part of antioxidant, 1 part of lubricant, 1 part of plasticizer;

[0053] The material is made by the following steps:

[0054] The first step, weigh polyethylene resin, modified polyethylene octene co-elastomer, modified montmorillonite and maleic anhydride grafted polyethylene by weight parts, place in a high-speed mixer, heat up to 170 ° C, Stir and mix at 1000r / min for 18min, then add antioxidant, lubricant and plasticizer, reduce the speed to 800r / min and continue to stir and mix for 10min to obtain a mixture;

[0055] In the second step, the mixed material is added to a twin-screw extruder for extrusion and granulation to obtain a toughened modified material.

Embodiment 2

[0057] A toughened modified material for PE pipes, made of the following raw materials in parts by weight: 95 parts of polyethylene resin (PE), 6 parts of modified polyethylene octene co-elastomer (POE), 9 parts of modified montmorillonite , 3.5 parts of maleic anhydride grafted polyethylene, 0.4 parts of antioxidant, 1.5 parts of lubricant, 1.5 parts of plasticizer;

[0058] The material is made by the following steps:

[0059] The first step, weigh polyethylene resin, modified polyethylene octene co-elastomer, modified montmorillonite and maleic anhydride grafted polyethylene by weight parts, place in a high-speed mixer, heat up to 175 ° C, Stir and mix at 1000r / min for 16min, then add antioxidant, lubricant and plasticizer, reduce the speed to 800r / min and continue to stir and mix for 11min to obtain a mixture;

[0060] In the second step, the mixed material is added to a twin-screw extruder for extrusion and granulation to obtain a toughened modified material.

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Abstract

The invention discloses a toughened modified material for PE pipes. The toughened modified material for PE pipes is prepared from the following raw materials in parts by weight: 90-100 parts of polyethylene resin, 5-7 parts of a modified polyethylene octene co-elastomer, 8-10 parts of modified montmorillonite, 3-4 parts of maleic anhydride grafted polyethylene, 0.3-0.5 part of an antioxidant, 1-2parts of a lubricant and 1-2 parts of a plasticizer. The invention also discloses a preparation method of the toughened modified material. According to the invention, PE resin is used as a material matrix; the modified montmorillonite and the modified elastomer material are added into the matrix for reinforcement and toughening, the modified montmorillonite can be uniformly dispersed in the PE matrix to achieve the effects of reinforcement and toughening, oxygen can be blocked, CO can be converted into non-toxic gas, and the modified montmorillonite and a flame retardant have a synergistic effect to achieve the effect of enhancing the flame retardant effect; the prepared composite material has excellent toughness and flame retardant property, is suitable for toughening modification of PE pipes, and can effectively improve the toughness and flame retardant property of the PE pipes.

Description

technical field [0001] The invention belongs to the technical field of PE pipe materials, and in particular relates to a toughened modified material for PE pipes and a preparation method thereof. Background technique [0002] PE pipe is a high crystallinity, non-polar thermoplastic resin pipe, because PE pipe is non-toxic, tasteless, odorless, good cold resistance, heat resistance and chemical stability, high rigidity, and good mechanical properties , easy installation and many other advantages, are widely used in building water supply, drainage, buried drainage pipes, gas pipelines and telecommunications engineering and other fields. However, at present, PE pipes cannot meet the requirements in terms of flame retardancy and impact resistance. PE materials are flammable polymers, which are insufficient in fire safety. In terms of impact resistance, especially in the northeast and colder places Prominent, such as cracking of pipes during loading and unloading and cracking of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08K13/06C08K9/04C08K3/34C08K5/5419C08F255/02C08F220/32C07F9/6571C07F9/141
CPCC07F9/1411C07F9/6571C08F255/02C08L23/06C08L2201/02C08L2201/14C08L2203/18C08L2205/025C08L2205/035C08L51/06C08K13/06C08K9/04C08K3/346C08K5/5419
Inventor 梁丽
Owner 界首市奥胜达塑业有限公司
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