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Odorless PVDC latex and preparation method thereof

A latex and CMT-technology, applied in the field of organic compounds and their preparation, can solve problems such as irritating odor and achieve the effect of improving odor

Inactive Publication Date: 2011-11-23
葛兴元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVDC latex is an ideal packaging material with high barrier properties, strong toughness, low-temperature heat sealing, good heat shrinkage and chemical stability; traditional PVDC latex has a pungent odor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An odorless PVDC latex, which comprises the following components in mass percentage: vinylidene chloride 45%, MMT methyldipentadiene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl 0.05%, and water 54.95%.

[0016] A preparation method of odorless PVDC latex includes the following steps:

[0017] (1) Put vinylidene chloride and water into the copolymerization reactor at a mass ratio of 1:1, and add OP emulsifier which accounts for 0.05% of the total mass of the raw materials;

[0018] (2) Control the temperature in the reactor at 50°C-55°C for polymerization reaction;

[0019] (3) After 6-8 hours of reaction, a vinylidene chloride copolymer emulsion is formed, and 0.05% of the total mass of the raw material is added with MMT methyldiprene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl, and the temperature is maintained Stir at 50°C for 5-10 minutes to obtain odorless PVDC latex.

Embodiment 2

[0021] An odorless PVDC latex, which comprises the following components in mass percentage: vinylidene chloride 50%, MMT methyldipentadiene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl 0.07%, and water 49.93%.

[0022] A preparation method of odorless PVDC latex includes the following steps:

[0023] (1) Put vinylidene chloride and water into the copolymerization reactor at a mass ratio of 1:1, and add OP emulsifier which accounts for 0.07% of the total mass of raw materials;

[0024] (2) Control the temperature in the reactor at 50°C-55°C for polymerization reaction;

[0025] (3) After reacting for 6-8 hours, a vinylidene chloride copolymer emulsion is formed, and 0.07% of the total mass of the raw materials is added with MMT methyldipentadiene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl, and the temperature is maintained Stir at 50°C for 5-10 minutes to obtain odorless PVDC latex.

Embodiment 3

[0027] An odorless PVDC latex, which comprises the following components by mass percentage: vinylidene chloride 55%, MMT methyldipentadiene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl 0.1%, and water 44.9%.

[0028] A preparation method of odorless PVDC latex includes the following steps:

[0029] (1) Put vinylidene chloride and water into the copolymerization reactor at a mass ratio of 1:1, and add OP emulsifier that accounts for 0.1% of the total mass of raw materials;

[0030] (2) Control the temperature in the reactor at 50°C-55°C for polymerization reaction;

[0031] (3) After reacting for 6-8 hours, a vinylidene chloride copolymer emulsion is formed, and 0.1% of the total mass of the raw material is added with MMT methyldipentadiene manganese tricarbonyl CMT-cyclopentadiene manganese tricarbonyl, and the temperature is maintained Stir at 50°C for 5-10 minutes to obtain odorless PVDC latex.

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PUM

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Abstract

The invention discloses odorless PVDC latex. The odorless PVDC latex comprises the following components, by mass, 45-55% of vinylidene chloride, 0.05-0.1% of methylcyclopentadienyl manganese tricarbonyl (MMT)-cyclopentadienyl manganese tricarbonyl (CMT), 44.9-54.95% of water. The invention further discloses a preparation method for the odorless PVDC latex. The method is characterized by: adding the vinylidene chloride and the water to a copolymerization reaction kettle according to the ratio; then adding an OP emulsifying agent to the copolymerization reaction kettle, followed by heating to a temperature of 50-55 DEG C to carry out a polymerization reaction for 6-8 hours to prepare a vinylidene chloride copolymerized emulsion; adding the small amount of the MTT-CMT to the vinylidene chloride copolymerized emulsion, carrying out stirring for 5-10 minutes at the temperature of 50 DEG C to prepare the odorless PVDC latex. According to the present invention, the odor of the PVDC latex is improved without changing the chemical property of the PVDC latex and the application effect of the PVDC latex.

Description

Technical field [0001] The invention relates to an organic compound and a preparation method thereof, in particular to an odorless PVDC latex and a preparation method thereof. Background technique [0002] PVDC latex is an ideal packaging material with high barrier properties, strong toughness and good low-temperature heat sealing, heat shrinkability and chemical stability; traditional PVDC latex has a pungent odor. Summary of the invention [0003] Object of the invention: The object of the invention is to provide an odorless PVDC latex. [0004] Another object of the present invention is to provide a method for preparing the odorless PVDC latex. [0005] The technical scheme adopted by the present invention: an odorless PVDC latex, which includes the following components in mass percentage: vinylidene chloride 45%-55%, MMT methyl dipentadiene manganese tricarbonyl CMT-cyclopentadiene tricarbonyl Manganese 0.05%-0.1%, water 44.9%-54.95%. [0006] A preparation method of odorless PVD...

Claims

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Application Information

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IPC IPC(8): C08L27/08C08K5/56C08F114/08C08F2/18
Inventor 葛兴元
Owner 葛兴元
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