Method for preparing protein filling agent from organic phosphate and chitosan modified keratin
A technology of chitosan modification and keratin, which is applied in the field of utilization of tanning waste resources, can solve the problems of large amount of reagents, reduced retanning filling efficiency, low hydrolysis rate, etc., to improve antibacterial and mildew resistance, increase dye Good dyeing rate, antibacterial and antiseptic properties
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[0015] A method for preparing a protein filler from keratin modified by organic phosphine and chitosan, including the following steps:
[0016] Step 1. Pretreatment of animal hair: take an appropriate amount of waste animal hair and weigh it, and determine the weight of the reagent used in this step with this mass; place the weighed waste animal hair in a reactor and add 10 parts by weight of the substance A hydrochloric acid solution with a concentration of 0.01 mol / L was stirred and reacted at a temperature of 50°C for 2 hours; then 0.2 parts by weight of 30% hydrogen peroxide was added, and the reaction was stirred at a temperature of 60°C for 4 hours, and the pH was adjusted to 6.5- 7.5, filter the animal hair, and dry the animal hair;
[0017] Step 2. Hydrolysis of animal hair: take an appropriate amount of pretreated animal hair and weigh it, and determine the weight of the reagent used in this step with this mass; place the weighed pretreated animal hair in a reactor, and ad...
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