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Multifunctional fresh-keeping material capable of releasing anions and preparation method of material

A fresh-keeping material and multi-functional technology, which is applied in the field of civil plastic applications, can solve the problems that the tourmaline powder cannot be uniformly dispersed, the mechanical properties of the film cannot be guaranteed, and the preservation and bacteriostasis cannot be achieved. Coupling effect, easy-to-shape effect

Inactive Publication Date: 2014-09-03
QIQIHAR UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent application number 200510110910.6 discloses a multifunctional tourmaline fresh-keeping material and its preparation method. Its formula only has HDPE and tourmaline, which cannot ensure that tourmaline powder is evenly dispersed in HDPE, and tourmaline powder particles are poorly compatible with HDPE, so that It is difficult to guarantee the mechanical properties of the film made by thermoforming, and it will cause air leakage or even tearing during the packaging force process, so as to fail to achieve the effect of freshness preservation and antibacterial

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Food turnover box

[0017] First, mix 90 parts of resin HDPE (2200J) and 0.8 parts of food-grade liquid paraffin in a mixer at 40°C for 1-3 minutes, then add 10 parts of 1250 mesh Anna Ao series negative ion additives, rare earth aluminum titanium coupling agent (F-1 ) 1 part is added to the mixer and mixed for 3~5min, mixed evenly, taken out, set the process temperature of the twin-screw extruder to 140-200°C, granulate in the twin-screw extruder, set the process temperature of the injection machine to 180-250°C, Injected into a food turnover box in an injection machine, the number of negative ions released after testing is 1000 / cm 3 .

Embodiment 2

[0019] plastic wrap

[0020] Mix 95 parts of resin film-grade LDPE (100AC) and 0.8 parts of food-grade liquid paraffin in a mixer at 40°C for 1-3 minutes, then add 5 parts of 2500-mesh Anaal series anion additives, aluminate coupling agent (DL -411-A) 0.5 parts are added to the mixer and mixed for 3~5 minutes to mix evenly, take out, set the process temperature of the twin-screw extruder to 120~180°C, granulate in the twin-screw extruder, set the process temperature of the blown film machine to 130~170°C, blown into a plastic wrap in a film blowing machine, the number of negative ions released is 1000 / cm 3 .

Embodiment 3

[0022] Seafood turnover box (plate)

[0023] First mix 90 parts of resin HDPE (2200J), 0.8 parts of food-grade stearic acid and 1 part of titanate coupling agent (TSC) in a mixer at 80°C for 1-3 minutes, and then mix 1250 mesh of Anna Ao series anion additives 10 parts, add to the mixer and mix for 3~5min, mix evenly, take out, set the process temperature of the twin-screw extruder to 140-200°C, granulate in the twin-screw extruder, set the process temperature of the injection machine to 200-240°C, Injected into a food turnover box (disc) in the injection machine, the number of negative ions released after testing is 1000 / cm 3 .

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PUM

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Abstract

The invention relate to a multifunctional fresh-keeping material capable of releasing anions and a preparation method of the material. The multifunctional fresh-keeping material is characterized by comprising 50-95 parts of resin, 5- 20 parts of an anion additive, 0.1-2 parts of a coupling agent, 0.1-0.5 part of an antioxidant and 0.1-0.8 part of a processing aid. The preparation method comprises the steps of firstly mixing resin with the processing aid well in a mixer, and then adding the anion additive, the coupling agent and the antioxidant to the mixer, mixing uniformly and taking out, and then pelletizing in a twin-screw extruder to obtain the multifunctional fresh-keeping material capable of releasing anions, and finally molding in the molding machine. The molded fresh-keeping product disclosed by the invention has the effects in the aspects of resisting bacteria, inhibiting bacteria, keeping fresh, removing peculiar smell, prolonging shelf life of food and promoting the vigor of animal and plant; the multifunctional fresh-keeping material is easily molded and can be produced into films, and boxes and the mechanical properties are not reduced after long-term use; due to the adoption of non-toxic and tasteless food grade resin and additive, the multifunctional fresh-keeping material is more conducive to human health and hygiene. The patent is mainly used in environments needing preservation such as food circulation boxes, seafood circulation boxes, seedling-breeding tray, takeout circulation boxes, refrigerator preservation box and fresh-keeping film.

Description

technical field [0001] A multifunctional fresh-keeping material releasing negative ions and a preparation method thereof belong to the field of civil plastic applications. Background technique [0002] In the 21st century with advanced science and technology, people pay more and more attention to the use of natural gifts, enhance the body health index and increase health care awareness, and make full use of materials such as tourmaline, medical stone, opal and Yellow River jade that have the function of releasing negative ions and far-infrared rays. Into daily necessities in order to bring convenience to life and improve the quality of life. For example, food turnover boxes, refrigerator fresh-keeping boxes, takeaway boxes, etc. that are often used by people in the service industry, after adding anion-releasing additives, the food transportation and storage period can last longer to meet people's needs for fresh food; The seafood market also needs to prolong the survival pe...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08L23/12C08K3/34C08K3/36C08K3/26C08K3/22
CPCC08K2003/2241C08L23/06C08K3/22C08K3/26C08K3/346C08K3/36C08K13/02C08K2003/265C08L23/12C08L2203/16C08L2207/062C08L2207/066
Inventor 杨秀英张德庆李青山
Owner QIQIHAR UNIVERSITY
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