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Modified polypropylene composite material having good blocking performance

A composite material and barrier performance technology, applied in the field of material formulation design of packaging products, can solve the problems of complex process, large equipment investment, difficult material recycling, etc., and achieve the effect of simple process, strong applicability, and easy control of conditions.

Inactive Publication Date: 2016-12-14
CHANGZHOU RUIJIE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is more complex in process, large in equipment investment, and difficult in material recovery.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A modified polypropylene composite film with better barrier performance, the preparation process of the composite film is as follows:

[0015] (1) Prepare the following components in parts by weight: 60 parts of polypropylene, 10 parts of ethylene-vinyl alcohol copolymer, 4 parts of maleic anhydride grafted polypropylene, 2 parts of tetrabutyl titanate, 5 parts of polypropylene carbonate , 2 parts of polyvinyl methyl ether, 6 parts of tributyl citrate, 2 parts of dilauryl thiodipropionate, 1.5 parts of antistatic agent, 2 parts of nano barium sulfate, 2.5 parts of organic montmorillonite, coupling Agent KH550 1.5 parts, nano silver 0.2 parts;

[0016] (2) First use the coupling agent KH550 and absolute ethanol to mix evenly according to the mass ratio of 1:12, then add nano-barium sulfate, organic montmorillonite, and nano-silver to the ethanol mixture of the above-mentioned coupling agent in sequence, and control the temperature at Reflux and stir at 65-70°C until a s...

Embodiment 2

[0019] A modified polypropylene composite film with better barrier performance, the preparation process of the composite film is as follows:

[0020] (1) Prepare the following components in parts by weight: 85 parts of polypropylene, 30 parts of ethylene-vinyl alcohol copolymer, 10 parts of maleic anhydride grafted polypropylene, 4 tetrabutyl titanates, and 10 parts of polypropylene carbonate , 7 parts of polyvinyl methyl ether, 10 parts of tributyl citrate, 4 parts of dilauryl thiodipropionate, 3 parts of antistatic agent, 5 parts of nano barium sulfate, 8 parts of organic montmorillonite, coupling Agent KH550 4 parts, nano silver 0.5 parts;

[0021] (2) First use the coupling agent KH550 and absolute ethanol to mix evenly according to the mass ratio of 1:14, then add nano-barium sulfate, organic montmorillonite, and nano-silver to the ethanol mixture of the above-mentioned coupling agent in sequence, and control the temperature at Reflux and stir at 65-70°C until a suspensi...

Embodiment 3

[0024] A modified polypropylene composite film with better barrier performance, the preparation process of the composite film is as follows:

[0025] (1) Prepare the following components in parts by weight: 72 parts of polypropylene, 20 parts of ethylene-vinyl alcohol copolymer, 6 parts of maleic anhydride grafted polypropylene, 3 parts of tetrabutyl titanate, 7 parts of polypropylene carbonate , 5 parts of polyvinyl methyl ether, 8 parts of tributyl citrate, 3 parts of dilauryl thiodipropionate, 2 parts of antistatic agent, 3.5 parts of nano barium sulfate, 5 parts of organic montmorillonite, coupling Agent KH550 2.5 parts, nano silver 0.3 parts;

[0026] (2) First use the coupling agent KH550 and absolute ethanol to mix evenly according to the mass ratio of 1:15, then add nano-barium sulfate, organic montmorillonite, and nano-silver to the ethanol mixture of the above-mentioned coupling agent in sequence, and control the temperature at Reflux and stir at 65-70°C until a sus...

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Abstract

The invention relates to a modified polypropylene composite material having good blocking performance. The composite material is prepared from 60-85 parts of polypropylene, 10-30 parts of vinyl-vinyl alcohol copolymer, 3-10 parts of maleic anhydride grafted polypropylene, 2-4 parts of tetrabutyl titanate, 5-10 parts of propylene carbonate, 2-7 parts of polyvinyl methyl ether, 6-10 parts of tributyl citrate, 1-4 parts of dilauryl thiodipropionate, 1-3 parts of antistatic agent, 2-5 parts of nano barium sulfate, 2-8 parts of organic montmorillonite, 1-4 parts of coupling agent KH550 and 0.1-0.5 part of nano silver. The film made from the modified polypropylene composite material having good blocking performance has good blocking performance, antibacterial and antistatic effects, hydrophilic properties and fouling resistance performance, a preparation method is simple in process, conditions are easy to control, the applicability is good, and the modified polypropylene composite material can be used in the package fields of medicines, foods and other products having blocking and hygiene requirements and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of material formula design for packaging products, in particular to a modified polypropylene composite material with better barrier performance. Background technique [0002] Polypropylene material is one of the polymers with large industrial output. It has the advantages of light weight, easy processing and good chemical stability. It is widely used in electronic products, auto parts, packaging materials and other fields. In the field of plastic packaging, the proportion of barrier plastic packaging has increased rapidly in recent years, especially in industries such as food and medicine that have strict requirements on the barrier properties of packaging materials. The outstanding advantage of using polypropylene as a barrier packaging material is its excellent water vapor barrier performance. However, due to its own structural factors, polypropylene has low barrier properties to gases such as oxygen and ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/08C08L69/00C08L29/10C08K13/06C08K9/06C08K3/34C08K5/11C08K3/30C08K3/08B29C55/28
CPCC08L23/12B29C55/28C08J5/18C08J2323/12C08J2423/08C08K2201/011C08L2201/04C08L2201/14C08L2203/16C08L2205/035C08L23/0861C08L69/00C08L29/10C08K13/06C08K9/06C08K3/346C08K5/11C08K2003/3045C08K2003/0806
Inventor 王卫红潘凯
Owner CHANGZHOU RUIJIE NEW MATERIAL TECH CO LTD