PVA is the use of advanced technology and processes to the production of calcium carbide and vinyl acetate acetylene as raw material, methanol as solvent, AIBN as initiator, through polymerization, alcoholysis processes is made. Is an environmentally friendly water-soluble polymers, non-toxic pollution, has good film forming properties, emulsifying properties, bonding properties and spinning performance. It forms the film has excellent bonding strength, solvent resistance, abrasion resistance, tensile strength and the denial of oxygen. Because alcohol also has both hydrophilic and hydrophobic functional groups, so it has surface active substances, so the alcohol can be used as polymer emulsion, suspension polymerization reaction of the protective colloid.