Hangzhou Linan Junjia Decorative Materials Co.,Ltd
Address: No.79,Tangwuli ,Shangquan Village, Linglong Industry Zone , Linan , Hangzhou , Zhejiang
Contact: Jessie Yang
Melamine paper in the processing of production, need to meet three conditions, of which the first condition is curing time. And this curing time is mainly refers to the pressure machine to meet the requirements of the press to open before the time required. In general, this period can be divided into resin flow time and resin curing time.
Resin Curing time: Refers to the hot press temperature, the resin inside the cross-linking, low molecular weight polymers with the loss of water condensed into a polymer polymer. In this process, the viscosity of the molten resin will become more and more large, about heating to the 10-20s after the resin will be cured, three-dimensional cross-linked structure gradually formed, this process and resin flow process no obvious boundaries, there is a cross transition stage, the resin complete curing is in the press after the closure of the 30-60s time.
and resin flow time: Generally refers to the beginning of hot pressing, impregnated paper surface temperature of up to 150 ℃ above, the pressure of more than 2MPa, under the effect of temperature and pressure, melamine resin melting, along the hot plate flow, and the substrate contact surface of the resin is also flowing, infiltration, resin flow to form a uniform surface of the resin layer, Depending on the temperature, the time required is around 10s.