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Modified polyvinyl alcohol packaging film and preparation method thereof

A polyvinyl alcohol and packaging film technology, applied in the field of film packaging materials, can solve the problems of inconvenient film production and storage, low tensile strength, low modulus, poor heat resistance, etc., achieve low raw material cost, excellent gas barrier performance, good thermal stability

Inactive Publication Date: 2017-06-20
苏州泰如新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the tensile strength and modulus of polyvinyl alcohol film are low, and the heat resistance is poor
And because polyvinyl alcohol is a hydrophilic material, it is easy to stick, which causes a lot of inconvenience to the production and storage of the film.

Method used

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  • Modified polyvinyl alcohol packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 of the present invention provides a modified polyvinyl alcohol packaging film, which consists of the following components in parts by weight: 5 parts of polyvinyl alcohol resin, 15 parts of starch, 0.05 parts of nano zinc oxide, SiO 2 0.5 parts, 0.8 parts of anti-blocking agent, 0.05 parts of Tween 80, 0.02 parts of coupling agent, 0.5 parts of plasticizer, 0.1 part of antioxidant, 0.05 parts of boric acid, 0.01 part of defoamer and 40 parts of deionized water.

[0023] SiO 2 for modified SiO 2 , modified SiO 2 It is obtained by surface grafting of polyetheramine and silica.

[0024] Anti-blocking agent is magnesium stearate

[0025] The coupling agent is a titanate coupling agent.

[0026] The plasticizer is glycerin.

[0027] The defoamer is water-based silicone oil.

[0028] In addition, this embodiment also provides a method for preparing a modified polyvinyl alcohol packaging film, comprising the following steps:

[0029] (1) Nano-zinc oxide an...

Embodiment 2

[0036] Embodiment 2 of the present invention provides a modified polyvinyl alcohol packaging film, which consists of the following components by weight: 50 parts of polyvinyl alcohol resin, 25 parts of starch, 0.3 parts of nano-zinc oxide, SiO 2 5 parts, 6 parts of anti-blocking agent, 3 parts of Tween 80, 4 parts of coupling agent, 9 parts of plasticizer, 0.4 part of antioxidant, 0.5 part of boric acid, 0.1 part of defoamer and 100 parts of deionized water.

[0037] SiO 2 for modified SiO 2 , modified SiO 2 It is obtained by surface grafting of polyetheramine and silica.

[0038] Antiblocking agent calcium stearate.

[0039] The coupling agent is a titanate coupling agent.

[0040] The plasticizer is trioctyl phosphate.

[0041] The defoamer is n-butanol.

[0042] In addition, this embodiment also provides a method for preparing a modified polyvinyl alcohol packaging film, comprising the following steps:

[0043] (1) Nano-zinc oxide and modified SiO 2 Add it into dei...

Embodiment 3

[0050] Embodiment 3 of the present invention provides a modified polyvinyl alcohol packaging film, which consists of the following components in parts by weight: 27 parts of polyvinyl alcohol resin, 20 parts of starch, 0.17 parts of nano-zinc oxide, SiO 2 2.7 parts, 3.4 parts of antiblocking agent, 1.5 parts of Tween 80, 2 parts of coupling agent, 4.8 parts of plasticizer, 0.25 part of antioxidant, 0.27 part of boric acid, 0.05 part of defoamer and 70 parts of deionized water.

[0051] SiO 2 for modified SiO 2 , modified SiO 2 It is obtained by surface grafting of polyetheramine and silica.

[0052] The antiblocking agent is calcium stearate.

[0053] The coupling agent is a titanate coupling agent.

[0054] The plasticizer is trioctyl phosphate.

[0055] The defoamer is tributyl phosphate.

[0056]In addition, this embodiment also provides a method for preparing a modified polyvinyl alcohol packaging film, comprising the following steps:

[0057] (1) Nano-zinc oxide a...

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Abstract

The invention provides a modified polyvinyl alcohol packaging film, and relates to the technical field of a film packaging material. The modified polyvinyl alcohol packaging film is prepared from the following ingredients in parts by weight: 5 to 50 parts of polyvinyl alcohol resin, 15 to 25 parts of starch, 0.05 to 0.3 part of nano-zinc oxide, 0.5 to 5 parts of SiO2, 0.8 to 6 parts of antiblocking agents, 0.05 to 3 parts of tween-80, 0.02 to 4 parts of coupling agents, 0.5 to 9 parts of plasticizing agents, 0.1 to 0.4 part of antioxidants, 0.05 to 0.5 part of boracic acid, 0.01 to 0.1 part of defoaming agents and 40 to 100 parts of de-ionized water. The invention also provides a preparation method of the modified polyvinyl alcohol packaging film. The prepared modified polyvinyl alcohol packaging film has the advantages that adhesion cannot easily occur; the tensile intensity, the modulus and the thermal stability are good.

Description

[0001] field of invention [0002] The invention belongs to the technical field of film packaging materials, and in particular relates to a modified polyvinyl alcohol packaging film and a preparation method thereof. Background technique [0003] Polyvinyl alcohol film (PVA for short) is the only vinyl polymer that can be used by bacteria as a carbon source and energy source. Under the action of bacteria and enzymes, it can degrade 75% in 46 days and belongs to a biodegradable polymer material. , can be produced on a large scale by non-petroleum route, the price is low, its oil resistance, solvent resistance and gas barrier performance are outstanding, and it has unique advantages in food and pharmaceutical packaging. It has high water absorption and can be dissolved when immersed in water. The moisture content of the fiber can reach 30%-50%, and the moisture content can reach 4.5% under the environment of 65%RH and 25℃. It can pass through water vapor, but it is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L83/04C08K13/06C08K9/04C08K3/36C08K3/22C08K3/38C08K5/098C08K5/10C08K5/053C08K5/523C08K5/12
CPCC08L3/02C08J5/18C08J2303/02C08J2329/04C08K2201/011C08L29/04C08L2201/08C08L2201/10C08L2201/14C08L2203/16C08L2205/03C08L83/04C08K13/06C08K9/08C08K3/36C08K2003/2296C08K3/38C08K5/098C08K5/10C08K5/053C08K5/523C08K5/12
Inventor 陶丽娟
Owner 苏州泰如新材料科技有限公司
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