Plant polysaccharide sponge body and its preparation method
A technology of plant polysaccharides and sponges, which is applied in the field of preparation of plant polysaccharides and sponges, can solve problems such as inability to realize industrial production, fail to meet the use requirements, and complex processes, and achieve light weight, strong water or oil absorption, and low production costs. low effect
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[0016] 1. Mix 60 parts of coarsely broken corn kernels, 2 parts each of modifier glyoxal, phosphoryl chloride, benzyl chloride, castor oil and toluene diisocyanate, and 10 parts of water (weight ratio is 60:10:10). , Sent to a single-screw extruder, the screw D / L is 25, the three-stage temperature is 95℃, 130℃, 160℃, and the rotation speed is 120RPM. After extrusion, crush to 60 meshes for use.
[0017] 2. The various raw materials are in weight percentage: bamboo pulp fiber 10, modified corn starch (the product of step 1) 70, plasticizer calcium stearate (zinc) 1, softener (methyl silicone oil) 2, hair Foaming agent (azodicarbonamide) 7, preservative (potassium behenate) 0.3, water repellent (wax emulsion) 2, filler (calcium carbonate) 7.7, mix well in a mixer.
[0018] 3. Feed the uniformly mixed materials into the twin-screw extruder. The process parameters of the twin-screw extruder are: the screw D / L is 20, the three-stage temperature is 140°C, 170°C, 210°C, and the speed It ...
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