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Preparation method of nanometer antibacterial polypropylene film, product and application of product in meat packaging

An antibacterial polypropylene and nano technology, applied in the field of preparation of nano antibacterial polypropylene film, can solve the problems of easy damage of packaging film, reduction of physical properties such as plasticity, wear resistance, tensile strength, food deterioration, etc., and achieves the ideal Antibacterial properties, good puncture resistance, the effect of overcoming poor puncture resistance

Active Publication Date: 2020-05-08
温州市金田塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Nano-packaging materials mainly include nano-composite packaging materials, polymer-based composite packaging materials, and nano-type antibacterial packaging materials. Physical properties such as strength are reduced, which affects its application
Especially for the packaging of meat products, since the contents are mostly fish and poultry meat products, the bones, fish fins, etc. are easy to cause damage to the packaging film, which will cause the food to deteriorate or leak in the packaging bag.

Method used

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  • Preparation method of nanometer antibacterial polypropylene film, product and application of product in meat packaging
  • Preparation method of nanometer antibacterial polypropylene film, product and application of product in meat packaging
  • Preparation method of nanometer antibacterial polypropylene film, product and application of product in meat packaging

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Effect test

Embodiment 1

[0034] The invention provides a kind of preparation method of nano antibacterial polypropylene film:

[0035] (1) Add sorbitol and glycerin to chitosan biguanide hydrochloride, after dispersing for 20min under the condition of 4000r / min in a disperser, add nano-TiO with a particle size of 15nm 2 , the speed of the high-speed disperser was increased to 4000r / min to disperse for 30 minutes, and then ultrasonic treatment (ultrasonic frequency was 40kHz) for 20 minutes, wherein, electron beam pre-irradiation was carried out during the whole dispersion process, and then sodium caseinate, polyethylene glycol and polyethylene glycol were added. Vinyl alcohol can be dispersed for 30min under the condition of 4000r / min to obtain the nanocomposite slurry, wherein,

[0036] Glycerin and Nano TiO 2 The weight ratio of sorbitol to nano-TiO is 0.5:10 2 The mass ratio of 0.4:10, nano-TiO 2 The weight ratio of chitosan biguanide hydrochloride is 10:8, sodium caseinate and nano TiO 2 The m...

Embodiment 2

[0042] The invention provides a kind of preparation method of nano antibacterial polypropylene film:

[0043] (1) Add sorbitol and glycerin to chitosan biguanide hydrochloride, after dispersing for 30min under the condition of 4000r / min in a disperser, add nano-TiO with a particle size of 18nm 2 , the speed of the high-speed disperser was increased to 4000r / min to disperse for 40min, and then ultrasonic treatment (ultrasonic frequency was 40kHz) for 30min, wherein, electron beam pre-irradiation was carried out in the whole process of dispersion, and then sodium caseinate, polyethylene glycol and polyethylene glycol were added. Vinyl alcohol can be dispersed for 40min under the condition of 4000r / min to obtain the nanocomposite slurry, wherein,

[0044] Glycerin and Nano TiO 2 The weight ratio of sorbitol to nano-TiO is 0.8:10 2 The mass ratio of 0.6:10, nano-TiO 2 The weight ratio of chitosan biguanide hydrochloride is 10:8, sodium caseinate and nano TiO 2 The mass ratio i...

Embodiment 3

[0050] The invention provides a kind of preparation method of nano antibacterial polypropylene film:

[0051] (1) Add sorbitol and glycerin to chitosan biguanide hydrochloride, after dispersing for 30min under the condition of 4000r / min in a disperser, add nano-TiO with a particle size of 16nm 2 , the speed of the high-speed disperser was increased to 4000r / min to disperse for 40min, and then ultrasonic treatment (ultrasonic frequency was 40kHz) for 20min, wherein, electron beam pre-irradiation was carried out in the whole process of dispersion, and then sodium caseinate, polyethylene glycol and polyethylene glycol were added. Vinyl alcohol can be dispersed for 40min under the condition of 4000r / min to obtain the nanocomposite slurry, wherein,

[0052] The glycerol and nano-TiO 2 The weight ratio of sorbitol to nano-TiO is 0.6:10 2 The mass ratio of 0.4:10, nano-TiO 2 The weight ratio of chitosan biguanide hydrochloride is 10:8, sodium caseinate and nano TiO 2 The mass rat...

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Abstract

The invention discloses a preparation method of a nanometer antibacterial polypropylene film, a product and an application of the product in meat packaging. The preparation method comprises the following steps: adding sorbitol and glycerol into chitosan biguanide hydrochloride, adding nano-TiO2, then adding sodium caseinate, polyethylene glycol and polyvinyl alcohol, dispersing for 30-40 min underthe condition of 4000 r / min to obtain a nano-composite slurry, mixing the nano-composite slurry with polypropylene resin, dispersing for 30-40 min under the condition of 4000 r / min, and preparing thenanometer antibacterial polypropylene film through a casting film making machine. The nanometer composite slurry accounts for 18-20% of the total feeding amount, so that the prepared antibacterial casting packaging film has ideal antibacterial performance and good puncture resistance, and can be applied to packaging of fish and poultry meat products.

Description

technical field [0001] The invention relates to the technical field of composite film production, in particular to a preparation method and product of a nano antibacterial polypropylene film and its application in meat packaging. Background technique [0002] As the most widely used food packaging material at present, composite plastic film plays a very important role in food preservation and storage, and can effectively maintain and extend the shelf life of food. However, the polymer film itself does not have antibacterial properties, and many additives specified in the national standard GB9685 also do not have antibacterial properties. [0003] There are a variety of sterilization processes in food processing, but there are still many types of food that rely on high salt and high sugar to achieve antibacterial purposes, and some types of food rely more on good sealing and barrier packaging materials to achieve shelf life The extension of the extension, more food still has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B65D65/40C08L23/12C08L23/28C08L5/08C08L71/02C08L29/04C08K13/02C08K3/22C08K5/053C08J5/18B29C41/24B29L7/00
CPCB29C41/24B29L2007/00B32B27/08B32B27/32B65D65/40C08J5/18C08J2323/12C08J2323/28C08J2405/08C08J2429/04C08J2471/02C08K5/053C08K13/02C08K2003/2241C08K2201/011
Inventor 于沛沛许艳顺刘荟孙宇航邱鸿波张幸垚朱敏
Owner 温州市金田塑业有限公司