Composition containing polyvinyl alcohol, film preparing method and film

A polyvinyl alcohol and composition technology, applied in the field of polyvinyl alcohol-containing compositions, can solve the problems of low-molecular plasticizers affecting the blown film process, affecting the health of users, and residual biological toxicity, etc., achieving good environmental protection effects, Cost saving and less odor effect

Pending Publication Date: 2019-05-21
JIANGMEN PROUDLY WATER SOLUBLE PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plasticizers used in these formula combinations are mainly low-molecular or small-molecular compounds, and the addition ratio is generally as high as 30 (mass)% or more, and the presence of low-molecular plasticizers affects the blown film process, and they precipitate rapidly during storage and use. and many other issues
Especially with the precipitation of low-molecular plasticizers, film products gradually harden and lose their various advantages as packaging materials
In addition, although the use of plasticizers such as acrylamide can also obtain better plasticizing effects, it will leave compounds with high biological toxicity, which will affect the health of users

Method used

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  • Composition containing polyvinyl alcohol, film preparing method and film
  • Composition containing polyvinyl alcohol, film preparing method and film
  • Composition containing polyvinyl alcohol, film preparing method and film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation method of sample 1:

[0049] 1) Weigh 47.1 parts by weight of polyvinyl alcohol with high degree of polymerization and high alcoholysis (namely 1799 type polyvinyl alcohol), 31.4 parts by weight of low-polymerization and low degree of alcoholysis polyvinyl alcohol (namely 0588 type polyvinyl alcohol), 350r / min, the stirring time is 10 minutes, and then continue to add 0.4 parts by weight of polyetheramine plasticizer ED900, N-methylmorpholine oxide-3.9 parts by weight, and 9.4 parts by weight of glycerol into the high-speed mixer When the material temperature rises to 80-85°C, continue to add 3.9 parts by weight of deionized water, 0.5 parts by weight of halloysite powder, 3.2 parts by weight of talc powder, and 0.1 parts by weight of EBS into the high-speed mixer. , 0.1 parts by weight of hydrophilic fumed silica, continue to mix for 5 minutes, then seal the stirred materials for 15 hours, and cool down naturally;

[0050] 2) The material obtained in step 1) is...

Embodiment 2

[0053] Preparation method of sample two:

[0054] 1) Weigh 46 parts by weight of polyvinyl alcohol with high degree of polymerization and high alcoholysis (namely 1799 type polyvinyl alcohol), and 30.6 parts by weight of low-polymerization and low degree of alcoholysis polyvinyl alcohol (namely 0588 type polyvinyl alcohol), 350r / min, the stirring time is 10 minutes, and then continue to add 0.4 parts by weight of polyetheramine plasticizer ED900, 7.7 parts by weight of N-methylmorpholine oxide, and 7.7 parts by weight of glycerol into the high-speed mixer. Continue to mix for 35 minutes; when the material temperature rises to 80-85°C, continue to add 3.8 parts by weight of deionized water, 0.5 parts by weight of halloysite powder, 3.1 parts by weight of talc powder, 0.1 parts by weight of EBS, and pro- 0.1 parts by weight of aqueous fumed silica, continue to mix for 4 minutes, and then seal the stirred materials for 10 hours, and cool down naturally;

[0055] 2) The material obtai...

Embodiment 3

[0058] Preparation method of sample three:

[0059] 1) Weigh 49.7 parts by weight of polyvinyl alcohol with high degree of polymerization and high alcoholysis degree (namely 1799 type polyvinyl alcohol), and 33.1 parts by weight of polyvinyl alcohol with low degree of polymerization and low degree of alcoholysis (namely 0588 type polyvinyl alcohol) at the rotating speed. 350r / min, the stirring time is 10 minutes, and then continue to add 0.4 parts by weight of polyetheramine plasticizer ED900, 0.4 parts by weight of N-methylmorpholine oxide, and 9.9 parts by weight of glycerol into the high-speed mixer. Continue to mix for 35 minutes; when the material temperature rises to 80-85°C, continue to add 2.5 parts by weight of deionized water, 3.0 parts by weight of halloysite powder, 0.8 parts by weight of talc powder, 0.1 parts by weight of EBS, and pro- 0.1 parts by weight of water-based fumed silica, continue to mix for 5 minutes, and then keep the stirred materials sealed for 15 ho...

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Abstract

The invention relates to a composition containing polyvinyl alcohol. The composition includes components by weight in parts in the specification. The composition allows an obtained polyvinyl alcohol film to have good rigidity and stiffness.

Description

Technical field [0001] The invention belongs to the field of synthesis, and in particular relates to a composition containing polyvinyl alcohol, a method for preparing a film using the composition, and a prepared film. Background technique [0002] Polyvinyl alcohol (PVA) is an organic compound, white flake, flocculent or powder solid. Soluble in water, slightly soluble in dimethyl sulfoxide, insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. Polyvinyl alcohol is an important chemical raw material used to make polyvinyl acetal, gasoline-resistant pipes and vinylon synthetic fibers, fabric treatment agents, emulsifiers, paper coatings, adhesives, glues, etc. [0003] PVA is the only vinyl polymer that can be used by bacteria as a carbon source and energy. Under the action of bacteria and enzymes, it can degrade 75% in 46 days. It is a kind of biodegradable polymer material a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L71/02C08K13/04C08K7/26C08K3/34C08K7/24C08K5/053C08K5/20C08K5/357C08J5/18
Inventor 莫雄勋
Owner JIANGMEN PROUDLY WATER SOLUBLE PLASTIC CO LTD
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