Bond Of Non-polarity Vulcanized Rubber And 45~# Steel

Bond of rubber and metal has extensive applications in many industrial fields, for instance, car making, war industry, road and bridge, and machine-building etc. Produces which adopting rubber to metal bonding could obtain good intensity and durability, functions of reducing shake and wear-resisting etc.The bond of rubber and metal mostly adopt vulcanization bonding, but in some occasions, we need to use un-vulcanization bonding. It is because that vulcanization bonding is difficult to satisfy with manufacture of products which are very huge or unstable (for example transfiguration or break down) under vulcanization condition, or which need to bond vulcanized rubber and metal in especial situations. As the reasons of low surface energy, chemical inertia, surface pollution and feeble boundary layer, vulcanized rubber need to take surface treatment before use. When vulcanized rubber surface been treated, we mostly adopt acid treatment method among chemical methods, but it has a lot of shortcomings, such as excessive treatment process, difficult to control treatment degree, and producing plenty useless fluid which could pollute environment seriously; physical methods we usually adopt plasma treatment, but the expensive cost of the plasma treatment restricts its use scales because of vacuum environment.This thesis accomplishes adhesion of vulcanized rubber and metal in two ways:one is excellent performance adhesive's researching and making, another is changing vulcanized rubber surface's coarseness extent and to do some surface modifications which could produce plenty of polarity agents. By our former experiment outcomes we could conclude:polarity vulcanized rubber and metal could reach excellent adhesion strength, but the adhesion strength of un-polarity vulcanized rubber and metal is very low. So this thesis adopts SBR, NR and BR three kinds un-polarity vulcanized rubber to bond with 45# steel, and takes the vulcanized SBR as primary research object.The thesis has researched the influence factors of bonding the vulcanized rubber and 45# steel by the way of modifying the self-made epoxy resin adhesive, and carrying out grinding, coating surface treatment agent, coating adhesive, UV modification (include UV sterilization light and high voltage mercury light), ozone modification, UV and ozone modifications on the surface of the vulcanized rubber, and carrying out SEM, ESCA, XPS and ATR tests on the treated vulcanized rubber surface. The outcomes of the experiments have proved that middling extent grinding on the surface of vulcanized SBR can increase shearing strength of the vulcanized rubber and 45# steel; use silicon coupling agent KH-560 to modify the adhesive or as surface treatment agent could improve adhesion strength and water-resist performance of the production, and its performance is better than KH-550; UV modification (include UV sterilization light and high voltage mercury light), ozone modification, UV and ozone modification could both produce functional groups which contain oxygen, but the performance of high voltage mercury light is the best, and it could produce plenty of polarity groups on the surface of the vulcanized rubber and increase shearing strength obviously, and it is proved that high voltage mercury light treatment is a kind of low-cost, effective and green modification method on the surface of vulcanized rubber.