Polyvinyl alcohol master batch with excellent hue

A technology of polyvinyl alcohol and master batch, applied in the field of polyvinyl alcohol master batch, can solve the problems of easy thermal decomposition, difficult processing, difficult thermoplastic molding of polyvinyl alcohol, etc., and achieves the effect of being beneficial to environmental protection

Active Publication Date: 2021-10-12
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high melting point of polyvinyl alcohol, which is very close to the decomposition temperature, it is easy to thermally decompose when melting, so it is difficult to process it into a film by melt extrusion.
At present, the existing technology has overcome the difficult problem that polyvinyl alcohol is difficult to be thermoplastically formed, and people have developed a dry extrusion blow molding method
However, problems such as yellowing of polyvinyl alcohol due to thermo-oxidative aging are still encountered during processing ("Research on Thermal Aging Mechanism of Polyvinyl Alcohol", Wang Jing et al., Journal of Beijing University of Chemical Technology (Natural Science Edition), 2005 Volume 32, Issue 2, Page 68, Left Column, Paragraph 1, Lines 1-15, published on May 11, 2005)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Polyvinyl alcohol masterbatch, its formula is:

[0069] Polyvinyl alcohol: 80 parts of polyvinyl alcohol (30 orders of particle diameter, 1000 degree of polymerization, degree of alcoholysis 92.0 (mol)%, volatile component content 2.0%wt);

[0070] Starch: 3 parts of corn starch (11.5%wt volatile matter);

[0071] Plasticizer: 13 parts of glycerin, 4 parts of polyethylene glycol 400 and 3 parts of sorbitol;

[0072] Antioxidant: 0.03 part of tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol and 0.03 part of tris(2.4-di-tert-butylphenyl) phosphite;

[0073] Inorganic filler: 3 parts of talcum powder (particle size is 1500 mesh);

[0074] Heat stabilizer: 0.06 parts of hypophosphorous acid and 0.6 parts of boric acid;

[0075] Lubricants: 0.1 part of calcium stearate, 0.1 part of polyethylene oxide and 0.3 part of polylactic acid;

[0076] The preparation method of described polyvinyl alcohol masterbatch is specifically:

[0077] First, add poly...

Embodiment 2

[0080] Polyvinyl alcohol masterbatch, its formula is:

[0081] Polyvinyl alcohol: 80 parts of polyvinyl alcohol (30 orders of particle diameter, 1000 degree of polymerization, degree of alcoholysis 92.0 (mol)%, volatile component content 2.0%wt);

[0082] Starch: 3 parts of corn starch (11.5%wt volatile matter);

[0083] Plasticizer: 13 parts of glycerin, 4 parts of polyethylene glycol 400 and 3 parts of sorbitol;

[0084] Antioxidant: 0.03 part of tetrakis(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol and 0.03 part of tris(2.4-di-tert-butylphenyl) phosphite;

[0085] Inorganic filler: 3 parts of talcum powder (particle size is 1500 mesh);

[0086] Heat stabilizer: 0.06 parts of hypophosphorous acid and 0.6 parts of boric acid;

[0087] Lubricants: 0.2 parts of glyceryl monostearate, 0.3 parts of polyethylene oxide and 3.5 parts of polylactic acid;

[0088] The preparation method of described polyvinyl alcohol masterbatch is specifically:

[0089] First, ...

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Abstract

The invention belongs to the technical field of polyvinyl alcohol compositions, and particularly relates to a polyvinyl alcohol master batch with excellent hue. The polyvinyl alcohol master batch comprises polyvinyl alcohol, a heat stabilizer, an antioxidant and a compound lubricant, and the compound lubricant comprises an inner lubricant and an outer lubricant. The polyvinyl alcohol master batch is good in hue.

Description

technical field [0001] The invention belongs to the technical field of polyvinyl alcohol compositions, and in particular relates to a polyvinyl alcohol masterbatch with excellent hue. Background technique [0002] Polyvinyl alcohol, also known as PVA and Poval, is a molecular backbone containing -CH 2 High polymers with -CH(OH)- groups are white or slightly yellow powder or granules, which are prepared by alcoholysis of polyvinyl acetate ("Polyvinyl Alcohol and Its Applications", Zhang Yi et al., Journal of Huangshan University , Volume 6, No. 3, 2004, lines 1-3 of the first paragraph of the left column on page 71 and line 1 of the second paragraph of the left column on page 71, published on June 30, 2004). [0003] Polyvinyl alcohol is a colorless, non-toxic, non-corrosive, and degradable water-soluble polymer with properties between plastics and rubber (“Progress in Research on Water-Soluble Polyvinyl Alcohol”, Kang Yong et al., Western Leather , 2011, Volume 33, Issue 4...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L3/02C08L71/02C08L67/04C08K13/02C08K3/38C08K3/32C08K5/053C08K3/34C08K5/06C08K5/134C08K5/526C08K5/103C08K5/098
CPCC08L29/04C08L2205/035C08L2201/06C08K2201/003C08K2003/329C08L3/02C08L71/02C08L67/04C08K13/02C08K3/38C08K3/32C08K5/053C08K3/34C08K5/06C08K5/1345C08K5/526C08K5/103C08K5/098
Inventor 王文胡腊梅何灵芝雷德松张振宇
Owner CHINA PETROLEUM & CHEM CORP
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