Nitrile rubber adhesiveStructure, composition and characteristicsNitrileRubber is a copolymer of butadiene and acrylic wax emulsion polymerization, which has excellent oil resistance. Due to the The macromolecule contains polar nitrileBase, so it has good adhesive properties, high tensile strength, and high polarity Molecular substances have good compatibility, andnitrile The content of the base has a significant impact on its properties. It is now used as an adhesive , generally acrylicnitrileCopolymer with a content of 30%~40%.
dingnitrileRubber adhesiveedingNitrileRubber as the main body, in order to improve adhesion Strength, modified resins such as modified phenolic resin, alkyd resin, polyvinyl chloride resin, etc. can be added. In order to improve the adhesion with metal, chlorinated rubber can be added. In order to improve adhesion, diesters, rosin gum or coumarone resin can also be used; in order to increase softness and cold resistance. Dibutyl phthalate, tricresyl phosphate, etc. can be used; antioxidants such as trimethyldihydroquinoline can ensure the stability of the solution. At the same time, it can also improve the adhesion and heat resistance and improve the stability of the polymer. , then a mixture of phenylsulfanine and phenyl-p-phenylenediamine can be used;Carbon black as filler. It can increase strength and adhesion; acetone, methyl ethyl ketone, dichloroethane, etc., which are the most easily soluble in rubber, can be used as solvents, and can also be mixed with ethyl acetate, xylene, etc.
DingNitrileRubber has the following characteristics:
① Due to its excellent oil resistance, it can be used with soft polychloride that is usually difficult to bond and has a large amount of plasticizer migration. Adhesion of vinyl plastic materials;
②After appropriate modification, it can be widely bonded to various adherends and has high bonding strength;
③Has a certain degree of heat resistance.
But it also has the following Weaknesses:
① Easily discolored by heat and light;
② The price is higher than other solvent-based rubber adhesives. Dingeye rubber adhesive is suitable for metal, plastic, synthetic Bonding of various materials such as rubber, wood, fabric and leather, especially suitable for bonding soft PVC materials such as PVC sheets, PVC foam, PVC fabrics, etc. Examplesuch as polychlorinePaste of vinyl flooring, polyvinyl chloride and metal, wood, hardboard and other manufacturing composite materials.
