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Ethane copolymer and preparation method and application thereof

A technology of ethylene copolymers and complexes, which is used in the production of peroxide cross-linked polyethylene pipes, the manufacture of ethylene copolymers, and the production of peroxide cross-linked polyethylene pipes. The effect of easy tuning and long oxidative induction period

Active Publication Date: 2012-08-15
SINOPEC YANGZI PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Patents ZL200310106157.4, ZL200310106156.x, ZL200410066068.6, CN2004100660703, CN200410066069.0, WO 2006 / 063501A1, CN2005101 are related to the specific application of polymer 19401.X, but failed to provide the loading method of the non-metallocene polymer complex Therefore, whether the manufactured ethylene copolymer is suitable for the manufacture of oxide cross-linked polyethylene pipes still needs to be researched and explored through a large number of experiments.

Method used

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  • Ethane copolymer and preparation method and application thereof
  • Ethane copolymer and preparation method and application thereof
  • Ethane copolymer and preparation method and application thereof

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preparation example Construction

[0061] In the preparation step of the magnesium compound solution, the alcohol may be selected from one or more of aliphatic alcohol, aromatic alcohol and alicyclic alcohol, and the alcohol may optionally be selected from an alkyl group, a halogen atom and an alkane Oxygen groups are substituted, among which fatty alcohols are preferred. For example, fatty alcohols such as methanol, ethanol, propanol, 2-propanol, butanol, pentanol, 2-methylpentanol, 2-ethylpentanol, 2-hexylbutanol, hexanol, and 2-ethylpentanol Hexanol, etc., among which ethanol, butanol and 2-ethylhexanol are preferred; Aromatic alcohols such as benzyl alcohol, phenethyl alcohol and methyl benzyl alcohol, etc., among which phenethyl alcohol is preferred; Cyclic alcohols such as cyclohexanol, cyclopentanol and cyclooctyl Alcohols and the like, among which cyclohexanol is preferred; alkyl-substituted alcohols such as methylcyclopentanol, ethylcyclopentanol, propylcyclopentanol, methylcyclohexanol, ethylcyclohexa...

Embodiment 1

[0281] Embodiment 1 (preparation embodiment of supported type non-metallocene catalyst)

Embodiment 1-1

[0283] The porous carrier adopts silica gel, the magnesium compound adopts anhydrous magnesium chloride, the alcohol adopts ethanol, and the chemical treatment agent adopts titanium tetrachloride.

[0284] The silica gel was continuously calcined at 600° C. under a nitrogen atmosphere for 4 hours to be thermally activated.

[0285] Weigh 5g of anhydrous magnesium chloride, add 15ml of tetrahydrofuran and 12.5ml of absolute ethanol, heat to 60°C until completely dissolved, add 10g of heat-activated silica gel while it is hot, stir evenly, and after standing for 12 hours, heat evenly to 90°C Vacuum dried to obtain 18.5 g composite carrier.

[0286] Weigh 8g of composite carrier, add 76ml of hexane, add 4.0ml of titanium tetrachloride dropwise over 30 minutes under stirring conditions, stir and react at 60°C for 4 hours, filter, wash with hexane twice, and use 60ml of hexane each time , and vacuum-dried at 25°C to obtain a modified composite carrier.

[0287] Weigh 0.75g struct...

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Abstract

The invention relates to an ethane copolymer prepared by utilizing a specific supported non-metallocene catalyst, and a preparation method thereof. Besides, the invention also relates to a method for preparing a peroxide-crosslinked PE pipe from the ethane copolymer and the peroxide-crosslinked PE pipe prepared by the method. The method for preparing the peroxide-crosslinked PE pipe is suitable for industrial large-scale implementation, and can effectively avoid the problem of dust flying and the risk of dust explosion in the manufacturing process; and the prepared peroxide-crosslinked PE pipe has longer oxidation induction time.

Description

technical field [0001] The invention relates to an ethylene copolymer, a production method thereof, and an application of the ethylene copolymer in the manufacture of peroxide crosslinked polyethylene pipes. More specifically, the present invention relates to an ethylene copolymer produced using a specific supported non-metallocene catalyst, and a method for producing the ethylene copolymer. In addition, the present invention also relates to a method for producing a peroxide crosslinked polyethylene pipe using the ethylene copolymer and a peroxide crosslinked polyethylene pipe produced by the method. The peroxide cross-linked polyethylene pipe produced by the present invention is widely used in heat-resistant, pressure-resistant and industrial fluid pipes, such as floor heating pipes, solar water heater pipes, industrial pipes, and hot and cold water supply pipes. Background technique [0002] The peroxide crosslinked polyethylene pipe is made by adding an appropriate amoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/02C08F4/658C08F4/645C08F2/14C08L23/08C08K5/14C08K5/13C08K5/18C08K5/526C08K5/36B29C47/00F16L9/12B29L23/00B29K23/00
Inventor 顾越峰姚小利左胜武李传峰杨爱武徐振明马忠林郭峰梅利尚小杰笪文忠傅勇陈韶辉王亚明顾学峰
Owner SINOPEC YANGZI PETROCHEM
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