고강도 작은 공경의 폴리테트라플루오로에틸렌 다공막

• Main Authors: MIURA KEN, KONABE KAZUO, MIYAMAE KOHEI, SHIMATANI SHUNICHI
• Format: Patent
• Language: Korean
• Published: 26.05.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

본 발명의 과제는 작은 공경이고 막 두께가 얇고, 고기공률이며, 또한 높은 강도를 갖는 폴리테트라플루오로에틸렌 다공막 및 그의 제조 방법을 제공하는 것이다. JIS K3832에 근거하는 이소프로필알코올에 의한 버블 포인트가 400 ㎪ 이상이고, 또한 JIS K6251에 근거하는 인장 강도가 50 MPa 이상인 폴리테트라플루오로에틸렌 다공막인 것을 특징으로 한다. The problem of the present invention is to provide a novel polytetrafluoroethylene porous film having a small pore diameter, small film thickness, high porosity, and high strength, and a production method thereof.The present invention provides a polytetrafluoroethylene porous film, wherein a bubble point in isopropyl alcohol (IPA) according to JIS K3832 is not less than 400 kPa, and a tensile strength based on JIS K6251 is not less than 50 MPa.