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Modified polyethylene resin and preparation method thereof

A kind of polyethylene resin, polyethylene technology, applied in the field of organic polymer resin material preparation

Inactive Publication Date: 2013-02-13
WENAN COUNTY XINGYUAN PLASTIC IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as people's requirements for product performance are getting higher and higher, it is difficult for ordinary polyethylene resin to meet these requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of modified polyethylene resin, its composition is expressed as follows by mass ratio:

[0026] Linear Low Density Polyethylene (LLDPE): 15

[0027] Low density high pressure polyethylene (LDPE): 35

[0028] Polyethylene glycol: 6

[0029] Polyvinyl chloride resin (PVC): 17

[0030] Stearic acid: 1

[0031] Epoxidized soybean oil: 4

[0032] Polystyrene resin: 5

[0033] Anhydrous aluminum chloride: 0.5

[0034] Magnesium Oxide: 2

[0035] Polyvinyl alcohol: 0.3

[0036] Sodium silicate: 1

[0037] Its preparation method is as follows:

[0038] (1) Add linear low-density polyethylene, low-density high-pressure polyethylene, and polystyrene resin into the high-speed mixer, and control the stirring speed at 200~260 rpm ／ Minutes, the temperature is lower than 60 ° C, mixed for 10 to 15 minutes;

[0039] (2) Add epoxy soybean oil, anhydrous aluminum chloride, magnesium oxide (fineness 800~1200 mesh), control stirring speed 200~260 rpm ／ Minutes, mix...

Embodiment 2

[0044] A kind of modified polyethylene resin, its composition is expressed as follows by mass ratio:

[0045] Linear Low Density Polyethylene (LLDPE): 18

[0046] Low density high pressure polyethylene (LDPE): 42

[0047] Polyethylene glycol (molecular weight 2000~600): 4.5

[0048] PVC resin: 20

[0049] Stearic Acid: 3

[0050] Epoxidized soybean oil: 4.5

[0051] Polystyrene monomer: 10

[0052] Anhydrous aluminum chloride: 0.05

[0053] Magnesium Oxide: 1

[0054] Polyvinyl alcohol: 5

[0055] Sodium silicate: 0.3

[0056] Its preparation method is as follows:

[0057] (1) Add linear low-density polyethylene, low-density high-pressure polyethylene, and polystyrene monomer into the high-speed mixer, and control the stirring speed at 200~260 rpm ／ Minutes, the temperature is lower than 60 ° C, mixed for 10 to 15 minutes;

[0058] (2) Add epoxy soybean oil, anhydrous aluminum chloride, magnesium oxide (fineness 800~1200 mesh), control stirring speed 200~260 rpm...

Embodiment 3

[0063] A kind of modified polyethylene resin, its composition is expressed as follows by mass ratio:

[0064] Linear Low Density Polyethylene (LLDPE): 20

[0065] Low density high pressure polyethylene (LDPE): 30

[0066] Polyethylene glycol (molecular weight 2000~600): 3

[0067] Polyvinyl chloride resin (PVC): 26

[0068] Stearic acid: 0.2

[0069] Epoxidized soybean oil: 5

[0070] Polystyrene resin: 15

[0071] Anhydrous aluminum chloride: 0.8

[0072] Magnesium oxide: 0.5

[0073] Sodium silicate : 3

[0074] Its preparation method is as follows:

[0075] (1) Add linear low-density polyethylene, low-density high-pressure polyethylene, and polystyrene resin into the high-speed mixer, and control the stirring speed at 200~260 rpm ／ Minutes, the temperature is lower than 60 ° C, mixed for 10 to 15 minutes;

[0076] (2) Add epoxy soybean oil, anhydrous aluminum chloride, magnesium oxide (fineness 800~1200 mesh), control stirring speed 200~260 rpm ／ Minutes, mix ...

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Abstract

The invention discloses modified polyethylene resin and a preparation method thereof. The preparation method comprises the following steps of: firstly mixing materials into a high-speed mixer by using linear low-density polyethylene (LLDPE), low-density high-pressure polyethylene (LDPE), polyvinyl chloride resin (PVC), polystyrene resin or a polyvinyl benzene monomer as raw materials and adding epoxidized soybean oil, stearic acid, anhydrous aluminium chloride, magnesium oxide, polyvinyl alcohol and sodium silicate at the temperature of below 60 DEG C; continuously mixing the materials into the high-speed mixer; cooling the materials to 40-45 DEG C when the temperature of the materials reaches 90-120 DEG C; adding the cooled materials into a double-screw pelletizer to pelletize under a high temperature condition; and cooling and slicing the materials to obtain a finished product. Compared with polyethylene (PE) resin, the flame retardancy of the modified polyethylene resin is improved by twice, and the melting oxygen index is improved from 13 to over 27; and moreover, compared with the common resin materials, the modified polyethylene resin has better mechanical property and is wider in using range.

Description

technical field [0001] The invention relates to a modified resin material, in particular to a modified polyethylene resin and a preparation method thereof, belonging to the technical field of organic polymer resin material preparation. Background technique [0002] Polyethylene, English name: polyethylene, referred to as PE, is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene has excellent low temperature resistance, good chemical stability, and can withstand most acid and alkali erosions. It is insoluble in common solvents at room temperature, has low water absorption, and has excellent electrical insulation properties. It has a wide range of uses, mainly used to manufacture films, containers, pipes, monofilaments, wires and cables, daily necessities, etc., and can be used as high-frequency insulation materials for TVs, radars, etc. Polyethylene is sensitive to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L71/08C08L27/06C08L25/06C08K13/02C08K5/09C08K5/1515C08K3/16C08K3/22C08K3/34
Inventor 苑肖肖
Owner WENAN COUNTY XINGYUAN PLASTIC IND CO LTD
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