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Method for modifying natural emulsion through pulullan-alcohol soluble protein

A pullulan polysaccharide and gliadin technology is applied in the field of natural polymer material processing to achieve the effects of improving aging resistance and solvent resistance, reducing friction coefficient and reducing viscosity

Active Publication Date: 2014-04-02
ZHEJIANG XIANGBAN LATEX PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural latex has poor oil resistance and aging resistance due to unsaturated double bonds, and the trace water-soluble protein in it can cause allergic reactions in the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method of pullulan-gliadin modified natural latex, the steps are:

[0018] (1) Preparation of silicone emulsion: Stir octamethylcyclotetrasiloxane, initiator dodecylbenzenesulfonic acid, emulsifier alkylphenol polyoxyethylene ether and deionized water at room temperature, and pre-emulsify for 30 minutes , and then heated to 80°C, adding KOH to carry out ring-opening polymerization for 4 hours to obtain a silicone emulsion, and after cooling, use hydrochloric acid to adjust the pH of the emulsion to 7;

[0019] (2) Preparation of gliadin-organosilicon composite emulsion: add wheat prolamin and alkenyltrimethoxysilane to the silicone emulsion, pass nitrogen gas for 30min, add potassium bisulfite and potassium persulfate in turn at 80°C Initiate the reaction for 6 hours, adjust the pH of the solution to 10 after cooling, and obtain the gliadin-organic silicon composite emulsion;

[0020] (3) Prolamin-organosilicon composite emulsion modified natural latex: mix and stir ...

Embodiment 2

[0024] A method of pullulan-gliadin modified natural latex, the steps are:

[0025] (1) Preparation of silicone emulsion: Stir octamethylcyclotetrasiloxane, initiator dodecylbenzenesulfonic acid, emulsifier alkylphenol polyoxyethylene ether and deionized water at room temperature, and pre-emulsify for 30 minutes , and then heated to 80°C, adding KOH to carry out ring-opening polymerization for 4 hours to obtain a silicone emulsion, and after cooling, use hydrochloric acid to adjust the pH of the emulsion to 7;

[0026] (2) Preparation of gliadin-organosilicon composite emulsion: add wheat prolamin and alkenyltrimethoxysilane to the silicone emulsion, pass nitrogen gas for 30min, add potassium bisulfite and potassium persulfate in turn at 80°C Initiate the reaction for 6 hours, adjust the pH of the solution to 10 after cooling, and obtain the gliadin-organic silicon composite emulsion;

[0027] (3) Prolamin-organosilicon composite emulsion modified natural latex: mix and stir ...

Embodiment 3

[0032] A method of pullulan-gliadin modified natural latex, the steps are:

[0033] (1) Preparation of silicone emulsion: Stir octamethylcyclotetrasiloxane, initiator dodecylbenzenesulfonic acid, emulsifier alkylphenol polyoxyethylene ether and deionized water at room temperature, and pre-emulsify for 30 minutes , and then heated to 80°C, adding KOH to carry out ring-opening polymerization for 4 hours to obtain a silicone emulsion, and after cooling, use hydrochloric acid to adjust the pH of the emulsion to 7;

[0034] (2) Preparation of gliadin-organosilicon composite emulsion: Add zein and alkenyltrimethoxysilane to the silicone emulsion, pass nitrogen gas for 30 minutes, add potassium bisulfite and potassium persulfate in sequence at 80°C Initiate the reaction for 6 hours, adjust the pH of the solution to 10 after cooling, and obtain the gliadin-organic silicon composite emulsion;

[0035] (3) Prolamin-organosilicon composite emulsion modified natural latex: mix and stir t...

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PUM

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Abstract

The invention relates to a method for modifying natural emulsion through pulullan-alcohol soluble protein. The method comprises four steps of preparing organic silicon emulsion, preparing alcohol soluble protein-organic silicon compound emulsion, modifying natural emulsion by the alcohol soluble protein-organic silicon compound emulsion, and modifying the natural emulsion through pulullan-alcohol soluble protein and organic silicon compound. The natural emulsion prepared by the method has ageing resistance and antianaphylaxis.

Description

technical field [0001] The invention relates to a method for modifying natural latex, in particular to a method for modifying natural latex with pullulan-gliadin, and belongs to the field of natural polymer material processing. technical background [0002] Natural latex is a biosynthesized and renewable natural resource, which is widely used in medical catheters, medical gloves, condoms and other products due to its excellent comprehensive performance. However, natural latex has poor oil resistance and aging resistance because of containing unsaturated double bonds, and trace water-soluble proteins therein cause allergic reactions in the human body. Contents of the invention [0003] The purpose of the present invention is to provide a kind of modification method of preparing the natural latex of aging resistance, antiallergic property. [0004] In order to achieve the above object, a kind of method of pullulan-gliadin modified natural latex of the present invention, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/00C08L7/02C08L89/00C08L83/04C08L5/00C08F291/12C08F291/06C08F230/08C08G77/06
Inventor 张亚丽
Owner ZHEJIANG XIANGBAN LATEX PROD
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