Resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer and preparation method thereof

A technology of glyceryl ester terpolymer and glycidyl ester, which is applied in the field of modification of vinylidene chloride, can solve the problems of decreased barrier properties and increased costs, and achieves improved light resistance and barrier properties, low preparation costs, and high production efficiency. high rate effect

Active Publication Date: 2016-03-30
GUANGDONG SHUNDE SHUNYAN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above reaction partially solves the problem of processing, it is still necessary to add plasticizers and heat stabilizers to improve the processing type, thermal stability and color resistance, but adding so many additives will definitely reduce the barrier property and increase the big cost

Method used

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  • Resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer and preparation method thereof
  • Resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer and preparation method thereof
  • Resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of high barrier resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer, comprising the steps of:

[0040] (1) At normal temperature, add 20kg of deionized water, 0.2g of hydroxypropyl methylcellulose and 0.7g of benzoyl tert-butyl peroxide into the reactor, and stir for 5min at a speed of 80rpm;

[0041] (2) Add 30 kg of vinylidene chloride, 4 kg of methyl acrylate, and 0.5 kg of glycidyl acrylate, set the reaction temperature to 40°C and the stirring speed to 500 rpm, pass condensed water, and react for 5 hours;

[0042] (3) Add 0.03 g of polymethylsiloxane microspheres and 0.3 g of benzoyl tert-butyl peroxide, raise the temperature to 80° C., stir at 500 rpm, and continue stirring for 8 hours to discharge. Centrifuge at 3000rpm for 30min, wash with deionized water and ethanol three times, and finally dry in a vacuum oven at 60°C for 9h to obtain the product.

[0043] figure 1 Be the infrared spectrogram of present embodim...

Embodiment 2

[0046] (1) At room temperature, add 20kg of deionized water, 0.5g of gelatin and 1.7g of dimethyl azobisisobutyrate into the reactor, and stir at a speed of 60rpm for 8min;

[0047] (2) Add 35 kg of vinylidene chloride, 3 kg of methyl methacrylate, and 2 kg of glycidyl methacrylate, set the reaction temperature to 35°C and the stirring speed to 800 rpm, pass condensed water, and react for 12 hours;

[0048] (3) Add 0.4 g of polyphenylsiloxane microspheres and 0.3 g of lauroyl peroxide, heat up to 100° C., stir at 700 rpm, and continue stirring for 10 h to discharge. Centrifuge at 4200rpm for 50min, wash twice with deionized water and ethanol, and finally dry in a vacuum oven at 75°C for 12h to obtain the product.

Embodiment 3

[0050] (1) At room temperature, add 20kg of deionized water, 1g of polyvinyl alcohol and 0.6g of azobisisoheptanonitrile into the reactor, and stir for 10min at a speed of 80rpm;

[0051] (2) Add 25 kg of vinylidene chloride, 3 kg of methyl acrylate, and 1.5 kg of glycidyl methacrylate, set the reaction temperature to 70°C and the stirring speed to 650 rpm, pass condensed water, and react for 3 hours;

[0052] (3) Add 0.4 g of polyethylsiloxane microspheres and 0.6 g of azobisisoheptanonitrile, heat up to 90° C., stir at 200 rpm, and continue stirring for 10 h to discharge. Centrifuge at 5500rpm for 20min, wash with deionized water and ethanol three times, and finally dry in a vacuum oven at 70°C for 8h to obtain the product.

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Abstract

The invention discloses a resin vinylidene chloride-acrylic ester-glycidyl acrylate terpolymer and a preparation method thereof. The preparation method comprises the following steps: adding deionized water, a dispersing agent and an initiating agent to a reactor at ordinary temperature, and stirring; adding vinylidene chloride, acrylic ester and glycidyl acrylate, setting reaction temperature and stirring speed, introducing condensation water, and starting to react for 2-15 hours; adding a polysiloxane microsphere and an initiating agent, increasing temperature to 80-100 DEG C, keeping stirring for 2-15 hours, and discharging; and centrifugalizing, washing, and drying to obtain a product. The preparation method disclosed by the invention is simple in synthesis step, simple in post processing by using no organic solvent which pollutes the environment and no emulsifying agent in a reaction process, fewer in raw material variety, high in productivity and low in preparation cost. The product has the advantages of good processing plasticity, heat stability and barrier property, can be processed into a single membrane or a composite multilayer membrane through extrusion, blow moulding or pressing and is applied to the packaging of foods, drugs and the like which have requirements for high barrier property.

Description

technical field [0001] The invention relates to a modification of vinylidene chloride, in particular to a high-barrier resin vinylidene chloride-acrylic acid ester-acrylic glycidyl ester terpolymer and a preparation method thereof. Background technique [0002] Due to the symmetry and regularity of the structure, the polymer of vinylidene chloride has high crystallinity, and has very good oxygen barrier and moisture barrier properties, and can be widely used in food and drug packaging films and other fields. However, because the melting temperature of vinylidene chloride homopolymer is very close to the decomposition temperature, and it is easy to decompose HCl and change color during processing, thus limiting its application. [0003] There are generally two ways to solve the problem of poor processing: 1. Add plasticizer; 2. Copolymerize with the second monomer. Simply adding a large amount of plasticizer will lead to a decrease in the crystallinity and barrier properties...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/08C08F220/14C08F220/18C08F220/32C08F2/20C08F2/44
Inventor 付曼华彭晓宏宁平张冬桥姚大爱杨子江张钊鹏郑崇深印野肖雄伟
Owner GUANGDONG SHUNDE SHUNYAN NEW MATERIALS
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