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Polyvinyl dichloride (PVDC) emulsion for cellophane coating and preparation method thereof and application thereof

A cellophane and emulsion technology, used in paper coatings, coatings, papermaking, etc., can solve the problems of not mentioning the barrier properties of cellophane, the barrier properties of cellophane cannot meet the required requirements, etc., to improve the vacuum desorption effect and low cost. , The effect of good barrier performance

Active Publication Date: 2013-04-24
海南海达丰实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as the patent application of CN 87206069, which uses cellophane as the isolation layer of rubber insulated wire and cable, which solves the aging performance problem of insulating rubber; the patent application of CN200980139574 discloses a polysiloxane composition that can be used for coating cellophane, It can form a cross-linked coating on cellophane with improved adhesion, mechanical strength and reactivity, but it does not mention the improvement of the barrier properties of cellophane; food packaging has high requirements on the barrier properties of packaging materials, and the current cellophane Barrier properties cannot meet the required requirements

Method used

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  • Polyvinyl dichloride (PVDC) emulsion for cellophane coating and preparation method thereof and application thereof
  • Polyvinyl dichloride (PVDC) emulsion for cellophane coating and preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Raw material preparation:

[0022] 1) Mixed monomer preparation: mix 91 kg of vinylidene chloride, 4.5 kg of acrylonitrile, and 3.5 kg of methyl methacrylate to obtain a mixed monomer;

[0023] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0024] 3) Mixed emulsifier preparation: Mix 2.2 kg of sodium secondary alkane sulfonate and 1 kg of 2A-1 emulsifier and add water to 20 kg to prepare a mixed emulsifier;

[0025] 2. Seed aggregation:

[0026] Add 50kg of deionized water, 30g of ammonium acetate, 1g of ferrous chloride, 180g of sodium paraffin sulfonate, and 1kg of itaconic acid into the reaction kettle and mix evenly, seal the kettle, replace the gas three times, vacuumize, and inhale the amount of the formula 3% mixed monomer, c...

Embodiment 2

[0032] 1. Raw material preparation:

[0033] 1) Mixed monomer preparation: mix 91 kg of vinylidene chloride, 4.5 kg of acrylonitrile, and 3.5 kg of ethyl methacrylate to obtain a mixed monomer;

[0034] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0035] 3) Mixed emulsifier preparation: Mix 2.2 kg of sodium secondary alkane sulfonate and 1 kg of 2A-1 emulsifier and add water to 20 kg to prepare a mixed emulsifier;

[0036] 2. Seed aggregation:

[0037] Add 50kg of deionized water, 30g of ammonium acetate, 1g of ferrous chloride, 180g of sodium paraffin sulfonate, and 1kg of itaconic acid into the reaction kettle and mix evenly, seal the kettle, replace the gas three times, vacuumize, and inhale the amount of the formula 3% mixed monomer, co...

Embodiment 3

[0041] 1. Raw material preparation:

[0042] 1) Mixed monomer preparation: mix 109.2 kg of vinylidene chloride, 5.4 kg of acrylonitrile, and 4.2 kg of methyl methacrylate to obtain a mixed monomer;

[0043] 2) Initiator preparation: dissolve 200 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 200 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0044] 3) Mixed emulsifier preparation: mix 2.2 kg of sodium paraffin sulfonate and 1.2 kg of 2A-1 emulsifier and add water to 20 kg to prepare a mixed emulsifier;

[0045] 2. Seed aggregation:

[0046] Add 30kg of deionized water, 30g of ammonium acetate, 1g of ferrous chloride, 180g of sodium paraffin sulfonate, and 1.2kg of itaconic acid into the reaction kettle and mix evenly, seal the kettle, replace the gas 3 times, vacuumize, and inhale the formula Measure 3% of the mixed monomer, cold ...

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Abstract

The invention discloses a polyvinyl dichloride (PVDC) emulsion for cellophane coating and a preparation method and application of the PVDC emulsion for the cellophane coating. The PVDC emulsion for the cellophane coating aims at solving the problems that existing cellophane is poor in barrier property, incapable of being used for food packaging and the like. The PVDC emulsion for the cellophane coating is obtained by serving a certain amount of vinylidene chloride, acrylonitrile, methacrylate and itaconic acid as a mixed mononer, selecting specific seeded emulsifier and mixed emulsifier, and adopting seeded emulsion polymerization. The PVDC emulsion for the cellophane coating is low in cost and good in barrier property. The coated cellophane is good in oxygen-resisting and waterproof effects and capable of being used for the food packaging.

Description

technical field [0001] The invention relates to a PVDC emulsion, in particular to a PVDC emulsion for coating cellophane, a preparation method and application thereof. Background technique [0002] Cellophane has good heat-sealing, environmental protection, waterproof, moisture-proof, anti-static and other properties, and can be widely used in packaging, cable insulation and aviation fields. Such as the patent application of CN 87206069, which uses cellophane as the isolation layer of rubber insulated wire and cable, which solves the aging performance problem of insulating rubber; the patent application of CN200980139574 discloses a polysiloxane composition that can be used for coating cellophane, It can form a cross-linked coating on cellophane with improved adhesion, mechanical strength and reactivity, but it does not mention the improvement of the barrier properties of cellophane; food packaging has high requirements on the barrier properties of packaging materials, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/08C08F220/44C08F220/18C08F220/14C08F222/02C08F2/24C08F2/26D21H19/20
Inventor 方勇邢青涛
Owner 海南海达丰实业有限公司
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