[From China Packaging Network News] Adhesives are one of the raw materials used by soft packs, and the procurement, sales, and production personnel of soft packs must understand them. This article has collated the commonly used terms for adhesives. Are you familiar with it?
1. Adhesive: It is a substance that can bond two objects together and have sufficient strength at the joint. It is generally composed of a binder, a curing agent or a catalyst, a filler, a solvent, and an auxiliary agent.
2. Viscosity: When the adhesive is in contact with the adherend, the pressure is slightly applied and the adhesive strength immediately forms.
3. Bonding: Two surfaces rely on chemical, physical, or both forces to bring them together.
4. Stickies: Materials that are to be glued together or glued together.
5. Bonding: Adhesives are used to join the surfaces of adherends together.
6. Curing: The process of the adhesive obtaining and improving the bonding strength through chemical reaction (polymerization, cross-linking, etc.).
7. Surface treatment: The chemical or physical treatment of the surface of the adherend in order to make it suitable for bonding or coating.
8, degreasing: remove the oil on the surface of the adherend.
9. Grinding: The surface of the adherend is treated with sandpaper, wire brush or other tools.
10, sandblasting: the use of sandblasting jet high-speed sand flow, the surface of the adherend to be treated.
11, chemical treatment: The adherend is placed in an acid or alkali solution for treatment, use of surface activation or passivation.
12. Anodizing: In order to protect the metal surface or make it suitable for bonding, the metal adherend is used as an anode, and an electrochemical method is used to form an oxide film on the surface thereof.
13, curing time: In a certain temperature, pressure and other conditions, the time required for the adhesive to harden.
14. Adhesive joints: Adhesives are used to glue two adjacent adherends together.
15. Storage period: Under the specified conditions, the adhesive can still maintain the longest storage time of its operating performance and specified strength.
16. Solid content: The percentage of non-volatile substances in the adhesive measured under the specified test conditions.
17. Durability: Under the conditions of use, the ability of the adhesive to maintain its performance over a long period of time.
18. Adhesive strength: the stress required to break the interface between the adhesive and the adherend in or adjacent to the adhered sample.
19. Shear strength: Under the action of the load parallel to the glue layer, the shear force that the unit glue joint bears when the glued sample is destroyed is expressed in MPa.
20. Tensile shear strength: The stress that causes the adhesive joint to break under the action of the tensile load parallel to the axial direction of the bonded interface layer is expressed in MPa.
21. Tensile strength: Under the action of the load perpendicular to the glue layer, the tensile force of the unit glue joint when the glued sample is destroyed is expressed by MPa.
22, peel strength: Under the specified peeling conditions, the glued sample separation, the unit width can withstand the load, expressed in kN/m.
23. Impact strength: The maximum work consumed by the unit's adhesive interface when the bonded sample is subjected to an impact load and is destroyed, and it is physically represented by J.
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XUCHUAN CHEMICAL(SUZHOU) CO., LTD
August 20, 2021
