Glue is a substance that can bond two objects. Glue does not exist independently, it must be applied between two objects to achieve bonding. The following is a brief description of the types of glues and their quality identification tips.
Classified according to the main adhesive properties of the adhesive:
1. Animal glue; 2. Vegetable glue; 3. Inorganic substances and minerals; 4. Synthetic elastomer; 5. Synthetic thermoplastic material; 6. Synthetic thermosetting material; 7. Thermosetting, thermoplastic material and elastomer composite.
Classified by adhesive hardening method:
The low temperature hardening code is a; the room temperature hardening code is b; the warming hardening code is c; the hardening code is d for various temperature zones; the solidification code is e with water; the anaerobic curing code is f; the radiation (light, electron beam) , radiation) curing code is g; hot melt cold hardening code is h; pressure sensitive bonding code is i; coagulation or condensation code is j, other code is k.
Classified according to the physical form of the adhesive:
1. Solvent-free liquid code is 1; 2 organic solvent liquid code is 2; 3 water-based liquid code is 3, 4 paste, paste code is 4, 5 powder, granular, block code 5; 6 sheet , film, mesh, strip code is 6; 7 filament, strip, rod code is 7.
Classified by adhesive adherend:
The multi-class material code is A; the wood code is B; the paper code is C; the natural fiber code is D; the synthetic fiber code is E; the polyolefin fiber (excluding E type) code is F; the metal and alloy code is G; The metal (silver, silver, copper, etc.) code is H; the metal fiber code is I, the inorganic fiber code is J; the transparent inorganic material (glass, gemstone, etc.) is coded as K; the opaque inorganic material code is L; the natural rubber code is M; synthetic rubber code is N; difficult rubber (silicone rubber, fluorine rubber, butyl rubber) code O, hard plastic code P, plastic film code Q; leather, synthetic leather code R, foam code S; difficult-to-stick plastics and films (fluoroplastics, polyethylene, polypropylene, etc.) are coded as T; biological tissue bone and tooth materials are coded U; other codes are V.
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