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Poaching type special polyvinyl dichloride (PVDC) rubber latex and preparation method thereof and application

A boiled, latex technology, used in transportation and packaging, flexible coverings, coatings, etc., can solve the problem that polyvinylidene chloride latex cannot meet the boiling resistance and other problems, and achieve the effect of excellent heat sealing 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

[0004] Aiming at the fact that the current polyvinylidene chloride latex cannot meet the requirement of boiling resistance, the present invention provides a boiling-type special PVDC latex with excellent boiling resistance and its preparation method and application

Method used

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  • Poaching type special polyvinyl dichloride (PVDC) rubber latex and preparation method thereof and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Raw material preparation: mix 89.5kg of vinylidene chloride, 1.7kg of (meth)acrylonitrile, 2.5kg of butyl methacrylate, 5.9kg of methyl methacrylate and 0.4kg of methacrylic acid, stir for 2 hours to prepare Mix the monomers; add 160g of tert-butyl hydroperoxide into 8kg of deionized water and stir and mix to make tert-butyl hydroperoxide solution; add 160g of sodium formaldehyde sulfoxylate into 8kg of deionized water and stir and mix to make Sodium formaldehyde sulfoxylate solution; Dissolve 1.2kg of sodium dodecylbenzenesulfonate and 1.2kg of sodium paraffin sulfonate in water, add water to 20kg, and carry out cold dispersion for 2 hours to make a mixed emulsifier solution;

[0051] 2. Seed polymerization: Seal the kettle with 50kg of deionized water or soft water, 24g of additive ammonium acetate, 5g of ferrous chloride, and 180g of sodium dodecylbenzenesulfonate, replace with nitrogen for 3 times, vacuumize, and inhale 3% The mixed monomer is used as a seed mono...

Embodiment 2

[0064] 1. Preparation of raw materials: Mix 92.5kg of vinylidene chloride, 1.2kg of (meth)acrylonitrile, 2.5kg of butyl methacrylate, 3.5kg of methyl methacrylate and 0.3kg of methacrylic acid, and stir for 2 hours to prepare Mix the monomers; add 160g of tert-butyl hydroperoxide into 8kg of deionized water and stir and mix to make tert-butyl hydroperoxide solution; add 160g of sodium formaldehyde sulfoxylate into 8kg of deionized water and stir and mix to make Sodium formaldehyde sulfoxylate solution; Dissolve 1.1kg of sodium dodecylbenzenesulfonate and 1.1kg of sodium paraffin sulfonate in water, add water to 20kg, and carry out cold dispersion for 2 hours to make a mixed emulsifier solution;

[0065] 2. Seed polymerization: Seal the kettle with 50kg of deionized water or soft water, 24g of additive ammonium acetate, 5g of ferrous chloride, and 180g of sodium dodecylbenzenesulfonate, replace with nitrogen for 3 times, vacuumize, and inhale 3% The mixed monomer is used as a s...

Embodiment 3

[0068] 1. Raw material preparation: mix 91kg of vinylidene chloride, 1.6kg of (meth)acrylonitrile, 2.8kg of butyl methacrylate, 4.4kg of methyl methacrylate and 0.2kg of methacrylic acid, stir for 2 hours to make a mixed Monomer; add 160 g of tert-butyl hydroperoxide into 8 kg of deionized water and stir and mix to make tert-butyl hydroperoxide solution; add 160 g of sodium formaldehyde sulfoxylate into 8 kg of deionized water and stir and mix to make formaldehyde Sodium sulfoxylate solution; Dissolve 1.1kg of sodium dodecylbenzenesulfonate and 1.05kg of sodium paraffin sulfonate in water, add water to 20kg, and carry out cold dispersion for 2 hours to make a mixed emulsifier solution;

[0069] 2. Seed polymerization: Seal the kettle with 50kg of deionized water or soft water, 24g of additive ammonium acetate, 5g of ferrous chloride, and 180g of sodium dodecylbenzenesulfonate, replace with nitrogen for 3 times, vacuumize, and inhale 3% The mixed monomer is used as a seed monom...

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Abstract

The invention provides poaching type special polyvinyl dichloride (PVDC) rubber latex which is excellent in poaching resistance and heat-sealing property and a preparation method thereof. According to the preparation method, seeded emulsion polymerization is adopted and proper amount of microcrystalline wax is added before a vacuum desorption aftertreatment process. Parts by weight of each component are calculated by 100 parts and comprise 50 parts of monomer mixtures, initiation agents, mixing and emulsifying agents, seeded emulsifying agents and additives; the monomer mixtures comprise 89.5-92.5 % of vinylidene chloride by weight of the total monomer mixtures, 1.2-1.8 % of (methyl) acrylonitrile, 2.5-3.0 % of methyl butyl acrylate, 2.9-5.9 % of methyl methacrylate and 0.1-0.4 % of methacrylic acid; the initiation agents comprise tert-butyl hydroperoxide and sodium formaldehyde sulfoxylate; the mixing and emulsifying agents comprise sodium dodecylbenzene sulfonate and secondary chain alkyl sulfonate; the seeded emulsifying agents comprise sodium dodecylbenzene sulfonate; and the additives comprise ammonium acetate and ferrous chloride. The poaching type special PVDC rubber latex can be coated on nylon and polyethylene terephthalate (PET), and can be used for packaging poaching food.

Description

technical field [0001] The invention provides a boiling-type special PVDC latex with excellent boiling resistance, a preparation method and application thereof. Background technique [0002] Polyvinylidene chloride is a non-toxic, tasteless, safe and reliable material with high oxygen resistance and moisture resistance. It also has excellent oil resistance, corrosion resistance, taste retention and printing performance. Therefore, polyvinylidene chloride copolymer latex is used in Widely used in food packaging. In today's meat processing, it is the mainstream to provide consumers with fresh or frozen meat. This food packaging application generally has the following disadvantages: the food provided must be steamed by the consumer before use, which is a waste of time; the food provided has not been processed High-temperature sterilization, the shelf life is not long; the packaging is opaque, and the packaged objects cannot be seen. At present, the food packaging materials ma...

Claims

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Application Information

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IPC IPC(8): C08F214/08C08F220/44C08F220/18C08F220/14C08F2/26C09D127/08B65D65/00
Inventor 方勇邢青涛
Owner 海南海达丰实业有限公司
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