A kind of high barrier biodegradable material and its preparation method and application

A biodegradable material and biodegradable resin technology, applied in the field of high-barrier biodegradable materials and their preparation, can solve problems such as poor barrier properties, and achieve the effects of improving water vapor barrier properties, extending diffusion paths, and reducing free volume

Active Publication Date: 2019-06-28
SHENZHEN PRINCE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on this, it is necessary to provide a high-barrier biodegradable material and its preparation method and application for the problem of poor barrier properties of traditional biodegradable materials.

Method used

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  • A kind of high barrier biodegradable material and its preparation method and application
  • A kind of high barrier biodegradable material and its preparation method and application
  • A kind of high barrier biodegradable material and its preparation method and application

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preparation example Construction

[0056] See figure 1 , the preparation method of the high barrier biodegradable material of one embodiment, comprises the following steps:

[0057] S100, mixing 25-35 parts by weight of the acidified high-protein colloid, 15-20 parts by weight of the biodegradable resin prepolymer, 0.5-1.5 parts by weight of the chain extender and water, and then raising the temperature to 60°C-100°C, After the reaction is complete, a gel complex is obtained, wherein the mass fraction of water in the acidified high-protein colloid is 30% to 40%.

[0058] Preferably, the acidified high protein colloid is prepared by the following steps:

[0059] S110. The animal gelatin protein or soybean protein isolate is boiled in boiling water until it is dehydrated and denatured, and then subjected to acid hydrolysis treatment to obtain fat-free high protein after purification.

[0060] S120. Grinding the fat-free high protein and water, the mass ratio of high protein to water is 1:1-1:2, until the D97 of...

Embodiment 1

[0080] The raw materials of the high-barrier biodegradable material in this embodiment weigh each component in the following parts by weight:

[0081] 28 parts of acidified gelatin protein colloid, 15 parts of carboxyl-terminated propylene carbonate (PPC) prepolymer, 0.5 parts of ethylene-methyl acrylate-glycidyl methacrylate terpolymer, 0.02 parts of protease catalyst, dilauric acid dilaurate 0.02 parts of butyl tin, 35 parts of bleached shellac resin solution, 3 parts of rosin resin acid, 0.01 part of dibenzoyl peroxide, 2 parts of nano silicon-based oxide (SiOx) dispersion emulsion, 2 parts of linseed oil, 1 part of beeswax, 1 part of fluorooctylvinyldimethoxysilane, 2 parts of n-butanol.

[0082] The preparation method of the high barrier biodegradable material of the present embodiment comprises the following steps:

[0083] Mix the acidified high protein colloid of 28 parts by weight, the carboxyl-terminated propylene carbonate (PPC) prepolymer of 15 parts by weight, th...

Embodiment 2

[0088] The raw materials of the high-barrier biodegradable material in this embodiment weigh each component in the following parts by weight:

[0089] 30 parts of acidified gelatin protein colloid, 20 parts of carboxyl-terminated carbon dioxide group barrier type TPU prepolymer, 0.8 part of styrene-glycidyl methacrylate copolymer, 0.03 part of protease catalyst, 0.03 part of stannous octoate, bleached shellac resin solution 40 parts, rosin resin acid 5 parts, sodium citrate 0.03 parts, nano-montmorillonite dispersion emulsion 4 parts, tung oil 4 parts, citrus vegetable wax 2 parts, perfluorooctyl vinyl dimethoxysilane 2 parts, propylene glycol 4 parts of ether.

[0090] The preparation method of the high barrier biodegradable material of the present embodiment comprises the following steps:

[0091] Mix 30 parts by weight of acidified high-protein colloid, 20 parts by weight of carboxyl-terminated carbon dioxide-based barrier TPU prepolymer, 0.8 parts by weight of styrene-gly...

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Abstract

The invention relates to a high-barrier biodegradable material and a preparation method and application thereof. The high-barrier biodegradable material comprises the following components in parts by weight: 25-35 parts of acidic high-protein colloid, 15-20 parts of a bio-degradable resin prepolymer, 0.5-1.5 parts of a chain extender, 0.02-0.06 part of a protease catalyst, 0.02-0.06 part of an organotin catalyst, 35-45 parts of a bleached shellac resin solution, 3-7 parts of pine resin acids, 0.01-0.07 part of a cross-linking agent, 2-6 parts of a nano-powder dispersion emulsion, 2-6 parts of dry vegetable oil, 1-3 parts of animal and vegetable wax, 1-3 parts of a water repellent agent and 2-6 parts of an alcohol ether solvent. In the polyreaction process of the component, different molecules and functional groups interact to form a very compact material with a spatial network molecular structure, the movement frequency of high polymer material chain segments in a glass state is reduced, the occurrence frequency of free volumes between high polymer chains is reduced or the free volumes are reduced, and channels allowing water vapor molecules to disperse are reduced or even closed to improve the water vapor barrier performance. Meanwhile, the high-barrier biodegradable material is a novel environment-friendly bio-based material.

Description

technical field [0001] The invention relates to the field of environmentally friendly bio-based materials, in particular to a high-barrier biodegradable material and its preparation method and application. Background technique [0002] Barrier packaging materials are materials that have a shielding function for gas-liquid permeates. They can prevent the penetration of oxygen, water vapor, liquids and fragrances, protect the contents from odor and deterioration, and prolong the circulation cycle and shelf life of commodities. Therefore, barrier packaging materials are widely used in the packaging of food, medicine, chemicals and other products, especially in the packaging of frozen food, meat products, oily food, tea, spices, cosmetics and pesticides. [0003] Today, barrier packaging materials on the market mainly include traditional barrier materials such as aluminum foil, aluminized film, ethylene-vinyl alcohol copolymer (EVOH), polyvinylidene chloride (PVDC) and polyethyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/00C08L69/00C08L23/08C08L93/00C08L93/04C08L91/00C08K13/02C08K5/14C08K3/34C08K5/5425C08K5/05C08K5/06C08K5/098C08K3/32C08K3/22
CPCC08K2003/2227C08K2003/324C08L89/00C08L2201/06C08L2201/14C08L2205/02C08L2205/035C08L69/00C08L23/0869C08L93/00C08L93/04C08L91/00C08K13/02C08K5/14C08K3/34C08K5/5425C08K5/05C08L75/04C08L25/14C08K5/098C08K3/346C08K5/06C08L35/06C08K5/57C08K3/32C08K3/22C08K5/54
Inventor 穆正洋栗国民
Owner SHENZHEN PRINCE NEW MATERIALS CO LTD
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