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Core-shell toughened and anti-fogging preservation master batch for PET film

An anti-fog droplet and core-shell technology, which is applied in the field of core-shell toughening for PET film and anti-fog droplet fresh-keeping masterbatch, can solve the problems of not meeting the requirements of anti-fog droplet preservation, poor impact toughness, rough surface of products, etc. , to achieve good practical value and application prospects, improve product quality, and good anti-fog effect

Inactive Publication Date: 2015-06-03
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyethylene terephthalate (PET) is a kind of linear polyester, which is often used as a raw material for extruded films and shed films. However, due to the relatively high glass transition temperature and melting point of PET, the crystallization speed is relatively slow, and the products Rough surface, poor gloss, poor impact toughness
Simultaneously, along with the improvement of people's living standards, the requirements for material life are also getting higher and higher. In order to obtain rich nutrition and vitamins, people will eat food such as fresh fruits and vegetables in sufficient amount every day. It is usually stored in plastic cling film or in a packaging container. Although plastic cling film can have a certain fresh-keeping effect by blocking oxygen in the air, it is far from meeting people's requirements for anti-fog drop preservation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A core-shell toughening and anti-fog fresh-keeping masterbatch for PET film, the composition of which is proportioned by mass percentage: PET resin 15%, nano calcium carbonate 30%, ethylene-octene copolymer (POE) 30%, Methacrylic acid 4%, diethyl azodicarboxylate 2%, polyoxyethylene sorbitan monolaurate 7%, perfluoroalkanol unsaturated ester polymer 6%, hindered amine light stabilizer 2% , 1% talc powder with a particle size between 0.01μm and 5μm, 2% silane coupling agent, 1% compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168.

[0022] Preparation method: (1) Dry PET resin at 130°C-140°C for 3-5 hours, dry nano-calcium carbonate at 100°C-120°C for 1-2 hours, and set aside; (2) Weigh according to weight ratio Add the dried nano-calcium carbonate into a high-speed mixer with a barrel temperature of 25°C to 70°C, stir for 3 to 15 minutes, then add methacrylic acid and diethyl azodicarboxylate weighed according to the weight ratio, and stir for 10 ...

Embodiment 2

[0024] A core-shell toughening and anti-fog droplet fresh-keeping masterbatch for PET film, its components are proportioned by mass percentage: PET resin 18%, nano calcium carbonate 40%, styrene-ethylene-butadiene-styrene copolymer (SEBS) 20%, methacrylic acid 6%, diethyl azodicarboxylate 2%, polyoxyethylene sorbitan monostearate 5%, perfluoroalkanolamide 5%, hindered amine light stabilizer 1%, 1% talc powder with particle size between 0.01μm and 5μm, 1.5% silane coupling agent, 0.5% compound of hindered phenol antioxidant 1076 and phosphite antioxidant 168.

[0025] Preparation method: (1) Dry PET resin at 130°C-140°C for 3-5 hours, dry nano-calcium carbonate at 100°C-120°C for 1-2 hours, and set aside; (2) Weigh according to weight ratio Add the dried nano-calcium carbonate into a high-speed mixer with a barrel temperature of 25°C to 70°C, stir for 3 to 15 minutes, then add methacrylic acid and diethyl azodicarboxylate weighed according to the weight ratio, and stir for 10 ...

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Abstract

The invention discloses a core-shell toughened and anti-fogging preservation master batch for a PET film. The master batch comprises the following components in percentage by mass: 10-30 percent of a PET resin, 20-40 percent of nano calcium carbonate, 20-40 percent of an elastomer, 2-6 percent of methylacrylic acid, 1-3 percent of diethyl azodicarboxylate, 3-10 percent of a dripping agent, 3-10 percent of an antifogging agent, 1-3 percent of a stabilizer, 0.5-2 percent of a nucleating agent, 0.5-3 percent of a coupling agent and 0.1-2 percent of an antioxidant. The nano calcium carbonate is treated and interacts with the elastomer so as to carry out a grafting reaction, a core-shell structure in which the elastomer is chemically coated with nano calcium carbonate is formed, and the synergistic toughening effect is enhanced. Meanwhile, the prepared master batch has the characteristics of anti-fogging performance, aging resistance, heat resistance, chemical resistance and the like and can be directly added and used in production of PET films, the process is simple, the operation is convenient, the product quality can be improved, and the master batch has high practical values and application prospects.

Description

technical field [0001] The invention relates to the technical field of macromolecular materials, in particular to a core-shell toughening and anti-fogging fresh-keeping masterbatch for PET films. Background technique [0002] Polyethylene terephthalate (PET) is a kind of linear polyester, which is often used as a raw material for extruded films and shed films. However, due to the relatively high glass transition temperature and melting point of PET, the crystallization speed is relatively slow, and the products The surface is rough, the gloss is poor, and the impact toughness is not good. Simultaneously, along with the improvement of people's living standards, the requirements for material life are also getting higher and higher. In order to obtain rich nutrition and vitamins, people will eat food such as fresh fruits and vegetables in sufficient amount every day. Usually adopt plastic preservative film or preserve in packing container, although plastic preservative film ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08L23/16C08L53/02C08K13/06C08K9/10C08K3/26C08K3/34C08K5/134C08K5/526C08L71/02C08L33/14C08K5/54C08J3/22C08K5/20
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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