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Polyester, polyacrylics, nylon과 cotton을 이용해 이들의 막지지천으로의 사용가능성을 조사하였다. 압축률, membrane embossing, 유량과 물리적·화학적 특성 등을 고려한 결과 50 번수의 polyester가 막지지천으로 적당함을 알았다. 이 polyester를 막지지천으로 사용해 압력 강하, 조업압력, 점도 등이 막지지천을 통한 유체 흐름에 미치는 영향을 조사하였는데, 이 막지지천을 통한 유체 흐름은 Darcy's law를 만족시켰다.
Fabrics of polyester, polyacrylics, nylon and cotton were tested to investigate the possibility. of using these matehals as a membrane support sheet. Considering the physical properties such as compaction rate, membrane embossing, water flux, the chemical and mechanical properties, 50 denlet polyester fabrics was found to be the appropriate material as a membrane support sheet among the tested materials. The experimental parameters such as pressure drop, compression pressure and viscosity were changed to investigate the effects of these parameters on the flow patten in this membrane support sheet. As a result, it was shown that Darcy's law could be satisfactorily applied to describe the flow pattern in this membrane support sheet.
