Preparation method of liquid-state base film high in biomass content
A high-capacity, biomass technology, applied in the fields of botanical equipment and methods, plant protection, plant protection cover, etc., can solve the problems of a large number of manual operations and consumption of large energy, and achieve the effect of improving particle structure and good compatibility.
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[0022] Such as figure 1 As shown, the preparation method of the biomass high-capacity liquid basement membrane provided by the embodiment of the present invention comprises the following steps:
[0023] S101: Add polyether polyol and diisocyanate to the reaction kettle, stir and react at 60°C for 60 minutes; add appropriate amount of DMPA, react at 70°C for 120 minutes; slowly add appropriate amount of chain extender, react at 70°C for 60 minutes; cool down to 30°C, Add triethylamine dropwise for neutralization, the neutralization degree is controlled at 80% to 100%, and the neutralization time is 30 minutes; add metered distilled water and stir and emulsify at high speed for 30 minutes to obtain a polyether-based polyurethane prepolymer emulsion;
[0024] S102: Add 70-90 parts of natural protein degradation product solution to 30-50 parts of polyether-based polyurethane prepolymer emulsion at 40°C, raise the temperature to 70°C, stir for 120 minutes, add 1-5 parts of cross-li...
Embodiment 1
[0033] The preparation method of the biomass high-capacity liquid basement membrane provided by the embodiment of the present invention comprises the following steps:
[0034] 1) Add a certain amount of polypropylene glycol and hexamethylene diisocyanate into the reaction kettle, stir and react at 60°C for 60 minutes; add an appropriate amount of DMPA, and react for 120 minutes at 70°C; slowly add an appropriate amount of 1,4-butanediol dropwise, React at 70°C for 60 minutes; cool down to 30°C, drop triethylamine for neutralization, control the degree of neutralization to 100%, and neutralize for 30 minutes; add metered distilled water and stir and emulsify at high speed for 30 minutes to obtain a water-based polyurethane emulsion (solid content ~30%).
[0035] 2) Add 30 parts of polyurethane emulsion at 40°C, add 70 parts of collagen degradation products and 500g of water, stir to fully dissolve the protein degradation products, raise the temperature to 70°C, continue stirrin...
Embodiment 2
[0038] The preparation method of the biomass high-capacity liquid basement membrane provided by the embodiment of the present invention comprises the following steps:
[0039] 1) Add a certain amount of polyethylene glycol and toluene diisocyanate into the reaction kettle, stir and react at 60°C for 60 minutes; then add an appropriate amount of DMPA, and react for 120 minutes at 70°C; slowly add appropriate amount of ethylene glycol dropwise, and react for 60 minutes at 70°C Cool down to 30°C, add triethylamine dropwise for neutralization, control the degree of neutralization to 80%, and control the neutralization time to 30 minutes; add metered distilled water and stir and emulsify at high speed for 30 minutes to obtain a water-based polyurethane emulsion (solid content ~ 30% ).
[0040] 2) Add 40 parts of polyurethane emulsion at 40°C, add 80 parts of collagen degradation product and 600 parts, stir with water to fully dissolve the protein degradation product, raise the temp...
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Abstract
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