Year1
- 骨胶：
- 15-300冻力
① Used as an adhesive for bonding pencils, emery cloth, sandpaper, etc., gluing wood, binding books, etc.
② Used for printing plate making and metal nameplate and badge manufacturing. Add dichromate to the bone glue solution and apply it on the metal surface, then dry it and expose it to form an insoluble thin layer. The unexposed part is still soluble in water and can be washed away, so that etching can be used to make printing. Edition and other products. Can also be used for screen printing.
③ Used as electroplating additive. Adding a small amount of bone glue to the plating solution can make the surface of the coating bright.
④Can be used as sizing agent in paper and textile industries. After the straw hat is applied with bone glue and then treated with formaldehyde, it will not be easily deformed and can be waterproof.
⑤Can be used as coagulant. Bone glue is a kind of animal glue, which is a chain-shaped natural polymer material. The main component is protein. Its molecular weight is between ~ soluble in water. After being added to water, it mainly relies on adsorption and bridging to promote the aggregation of destabilized colloidal particles. The use of bone glue in combination with aluminum salt or iron salt can achieve good coagulation effects. my country's Nanjing Water Supply Company used bone glue as a coagulant aid for the first time in 2004 and used it in combination with ferric chloride to achieve good treatment results.
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