Filter material and manufacturing method thereof

• Main Author: LI WUNAN
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2020
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to a filter material and a manufacturing method thereof. The filter material comprises a first mixed layer obtained by mixing natural bamboo fibers and 4080 and then performing thermoforming, and also comprises a polytetrafluoroethylene microporous membrane attached to the first mixed layer by hot-pressing. The filter material further comprises a second mixed layer obtained by mixing natural bamboo fibers and 4080 and then carrying out thermoforming, and the polytetrafluoroethylene microporous membrane is clamped between the first mixed layer and the second mixed layer. The manufacturing method of the filter material comprises the following steps: 1, feeding one end of a rolled first mixed layer between an upper roller and a lower roller of a hot press; 2, placing oneend of a rolled polytetrafluoroethylene microporous membrane on the surface of one end of the first mixed layer; and 3, starting the hot press, and tightly attaching the polytetrafluoroethylene microporous membrane to the su