Must know the solvent-free composite film of advantages and disadvantages

【 What to watch for 】 Compared with traditional dry compound, composite membrane solvent-free composite in reducing cost, improving product quality, environmental protection, production safety and stability, etc, has many advantages, is a kind of is worth advocating and highly practical value mode of production, of course, solvent-free composite also has its disadvantages. This article introduces the advantages and disadvantages of solvent-free composite. The advantages of the composite membrane solvent-free composite 1, because environmental protection adhesive without solvent, not cause resulting from solvent emissions to the environment pollution. In addition, solvent-free device because of its compact structure and reduced the drying oven, make its noise is much lower than that of solvent-based equipment. According to the measured, solvent-free composite equipment noise is in commonly 70 - Between 75 db and solvent is in commonly 85 - Between 100 db. 2, low cost on the equipment investment cost, because the solvent-free composite device is compact, covers an area of much smaller than solvent composite equipment, equipment cost is much lower than the province solvent at the same time, also do not need to solvent warehouse. On using energy costs, no solvent equipment motor power than solvent also reduce tens of kilowatts. On the personnel costs, composite membrane solvent-free composite equipment typically require configuration 1 - 2 man/machine, 2 - solvent compound equipment requires configuration Three people. On the cost of glue, glue quantity for around two-thirds of solvent, will reduce the production cost in mass production. Also don't need to invest in solvent recovery and burning device. 3, health security solvent composite control anyway there will always be the existence of residual solvents, solvent-free composite and composite film is to avoid the residual solvent odor pollution content or cause. Operational security, since from using solvent and there is no danger of fire and explosion, explosion-proof measures. 4, the quality of the products due to operating temperature, lower than the solvent will not result in a membrane deformation at high temperature. The common composite film base material can be used without solvent adhesive production, even 121 ℃ high temperature resistant cooking composite membrane can be the method of manufacturing. The disadvantage of solvent-free composite binder in the coating the whole system when heating, coating machine to heat preservation; Glue blend to the applicable period is short, the effective use of time not more than 30 min; For heavy package and require high medium resistance, uht products is difficult to meet the requirements; Low initial adhesion force, long curing time; Coated high accuracy requirement.