Study On Composition Of Functional Composite Particles And Epoxy Resin

Epoxy resin has the feature of high adhesion strength,steady in performance, low shrinkage,high mechanical strength,good resistance to electricity and good processability.It is widely used in many fields of national economy.For instance,it is used as agglutination agent of metallic material and non-metallic material corrosion resistance coating,insulating material,glass fiber reinforced plastics/ compound material.But epoxy resin also has some defect,which restricted its apply field.People tried to increase its function by the method of modification.Among them,adding particle to epoxy resin system is one of the effective methods.The main body of the paper is to add WS-12 particle to the synthetical epoxy resin or industrial epoxy resin, their mechanical properties increased greatly.Besides,pure epoxy resin is hydrophilic, but WS-12 particle has very strong hydrophobic property,so epoxy resin adding WS-12 particle has improved hydrophobic property.In the application of epoxy resin,curing agent is very important.Pure epoxy resin under general condition can not be solidified.Only when adding a curing agent, composing formula resin,under certain condition,can it be solidified,making it has mechanical strength.Therefore,curing agent's modification is one of the main directions of epoxy resin's study.This paper lengthen general curing agent's molecule chain by the fact that adding certain amounts of reinforcing agent to the curing system,making them react several hours under certain condition.At the same time it adds a few function groups to the chain that is reactive to epoxy group,successfully changing curing agent's nature.The curing agent after modification can react to epoxy resin under certain condition,its cross-linking density increased since the function groups which can react to epoxy resin increase.So the three dimensional solidification has much better mechanical properties,conforming feasible epoxy resin.A majority of epoxy resin is insoluble in water,dissolve in organic solvents such as aromatic hydrocarbon and ketone.But organic solvents have some shortcomings such as inflammable,easy to explode,easy to deleterious,contaminating environment, which cause much inconvenience to the storation and transportation and construction of the curing agent.Therefore,we put hydrophilic group into regular epoxy resin molecule,such as hydroxy,carboxyl or etherification of making.Then this feasible epoxy resin is water soluble or has self emulsification function.At the same time,this hydrophilic epoxy resin is also a kind of nonionic surface-active agent,its application remains to be studied.