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Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same

A vinyl alcohol copolymer, linear low-density technology, applied in the field of blended film and its production, can solve the problems of incompatibility between LLDPE and EVOH, achieve improved adhesion and compatibility, good mechanical properties, and reduce production cost effect

Inactive Publication Date: 2010-09-29
哈尔滨隆华艺达包装制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that an adhesive layer must be added between the two when the two are used together because LLDPE and EVOH are incompatible, and a kind of linear low density polyethylene and ethylene-vinyl alcohol copolymer is provided. Blend film and method of making the same

Method used

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  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same
  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same
  • Linear low density blending film of polyethylene and ethylene-ethenol copolymer and method for making the same

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specific Embodiment approach 1

[0015] Specific embodiment one: In this embodiment, the blend film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 71.91 to 84.93 parts by weight of linear low density polyethylene and 10 to 15 parts of ethylene-vinyl alcohol Copolymer, 8-13 parts of calcium carbonate masterbatch with mass concentration of 30%, 0.02-0.2 parts of maleic anhydride monomer, 0.002-0.005 parts of dicumyl peroxide, 0.002-0.007 parts of diphenyl peroxide Formyl and 0.002 to 0.01 parts of dimethylformamide are made.

specific Embodiment approach 2

[0016] Specific embodiment two: In this embodiment, the blended film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 71.91 to 84.93 parts by weight of linear low density polyethylene, 10 to 15 parts of ethylene-vinyl alcohol Copolymer, 8-13 parts of calcium carbonate masterbatch with a mass concentration of 30%, 0.02-0.2 parts of acrylic acid, 0.002-0.005 parts of dicumyl peroxide, 0.002-0.007 parts of dibenzoyl peroxide and 0.002 parts ~0.01 phr of dimethylformamide.

specific Embodiment approach 3

[0017]Specific embodiment three: In this embodiment, the blended film of linear low density polyethylene and ethylene-vinyl alcohol copolymer consists of 79.533 to 101.756 parts by weight of linear low density polyethylene, 8 to 13 parts with a mass concentration of 30% Calcium carbonate masterbatch, 0.1-0.684 parts of maleic anhydride monomer, 0.008-0.018 parts of dicumyl peroxide, 0.024-0.062 parts of dibenzoyl peroxide, 0.01-0.035 parts of dimethylformamide And 9.533 ~ 16.756 parts of ethylene-vinyl alcohol copolymer.

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Abstract

The invention discloses a blend film of linear low-density polyethylene and ethylene-vinyl alcohol copolymer and a manufacturing method thereof, which relates to a blend film and a manufacturing method thereof. The invention solves the problems that LLDPE and EVOH are incompatible and require a bonding layer in the middle when being used together. The blend film of the invention is manufactured by linear low-density polyethylene, ethylene-vinyl alcohol copolymer, calcium carbonate master batches, dicumyl peroxide, dibenzoyl peroxide, dimethylformamide and a maleic anhydride monomer or acrylicacid. The manufacturing method of the invention includes that modified master batches are first prepared to be then used for manufacturing the blend film of the invention. The blend film of the invention can be directly obtained without adding a bonding layer between LLDPE and EVOH when in use of raw materials of LLDPE and EVOH.

Description

technical field [0001] The invention relates to a blend film and a preparation method thereof. Background technique [0002] In 2006, China's plastic resin consumption reached 40 million tons, of which 40% were used in the plastic packaging industry, and films accounted for a large proportion in the plastic packaging industry, of which 37% were high-barrier films. It can be seen that barrier packaging films are used in my country's plastic packaging processing The important position in the industry also reflects the market demand for high barrier films. In today's market where the performance requirements of polymers are constantly improving, it is difficult to synthesize new polymers, and the use of blends between polymers can overcome the shortcomings of a single polymer. Currently, linear low-density polyethylene (LLDPE) ) and ethylene-vinyl alcohol copolymer (EVOH) are mostly used in the form of multi-layer co-extrusion, and a layer of adhesive resin is used between the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08L51/06C08K3/26C08J3/22C08J5/18
Inventor 吴艳秋
Owner 哈尔滨隆华艺达包装制品有限公司
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