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
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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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