Study On Water Resistance Of Complete Alcoholysis Polyvinyl Alcoho Packaging Films

Polyvinyl alcohol(PVA)because it has a good water-soluble,film-forming and biodegradable has become a very good environment-friendly polymers,but also precisely because it's such a very good performance,so polyethylene alcohol is widely used in life.This article is based on the excellent performance of polyvinyl alcohol used polyvinyl alcohol as the main material developed a new environmental protection new anti-rust solution,this solution can be a good rust coating on the metal surface to produce good anti-corrosion effect and after drying can be a dense film on the metal surface,this layer of film having good peelability and water-soluble,which solves the rust was applied after the subsequent clean-up difficulties and was not environmentally friendly rust problem.The main contents and results are as follows:(1)By the matrix membrane test,antirust liquid drugs selection test and rust prevention drugs of single factor experiment can obtain the best configuration scheme of the rust inhibitor is: PVA(1799)15 g,emulsifier OP-10 3 ml,glycerol 3 ml,polysorbate 80 3 ml,sodium dodecyl sulfate1 g,triethanolamine 6 ml,benzene and three azole nitrogen 3 g,citric acid,3 g deionized water 100 ml.Under the formula,whether it is antirust liquid film forming performance,can peel,water soluble,anti-rust properties or performance optimization of drug and save both can achieve the optimal solution.At the same time,through ultraviolet spectrophotometer testing antirust liquid component that excellent antirust fluid performance of anti-rust liquid is not the result of triethanolamine and citric acid,triethanolamine and citric acid reaction generated after citric acid triethanolamine salt.This kind of material,with benzene and three azole nitrogen to make antirust fluid has excellent antirust performance.This article is to determine the formula for the final antirust liquid formula.(2)Thought added different volume of antirust liquid to the steel,aluminum,pure copper by weight-loss method,electrochemical,scanning electron microscopy in the characterization of antirust liquid in1.0 mol/L HCl acid solution and antirust performance,through themethod of test result of antirust liquid on the corrosion of carbon steel,aluminum,pure copper efficiency reached 82.1% ? 77.9% ? 86.7%.respectively.Through electrochemical test results represent that antirust liquid corrosion of carbon steel,aluminum,pure copper efficiency reached 85.4%?79.8% and 85.9% respectively.Weightlessness method and the experimental results of electrochemical method.