Patent ID: 11891536
Assignee: FULIAN YUZHAN PRECISION TECHNOLOGY CO., LTD
Field: Surface technology, coating (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A method for manufacturing a coating applied on an injection needle for transporting adhesive, the injection needle comprising a tube, the method comprising:
applying a hydroxylation treatment on the tube to form hydroxyl groups on an inner surface of the tube;
immersing the tube in a slurry; wherein the slurry comprises a first monomer and a second monomer, the first monomer is selected from a silane containing at least one alkoxy and at least one alkyl, and the second monomer is selected from a silicate ester;
applying a leveling treatment on the slurry adhered to the inner surface of the tube; and
curing the slurry to form the coating on the inner surface of the tube;
wherein, the alkyl in the silane and a alkyl in the silicate ester are independently selected from a group consisting of substituted alkyl and unsubstituted alkyl; the silane comprises at least one selected from a group consisting of monosilane and bisilane; the silicate ester comprises at least one selected from a group consisting of monosilate ester and bisilate ester;
an angle for the leveling treatment applied on the slurry is in a range of 45 degrees to 90 degrees; a time period of the leveling treatment applied on the slurry is in a range of 0.1 h to 1 h; a temperature for curing the slurry is in a range of 70 degrees Celsius to 80 degrees Celsius; and a time period for curing the slurry is in a range of 2 h to 6 h.