摘要:
A biaxially stretched polypropylene film includes protrusions on both surfaces, in which the biaxially stretched polypropylene film has a thickness t1 of 1 μm to 3 μm, has a tensile strength in the machine direction of 120 MPa to 250 MPa, has a tensile strength in the transverse direction of 250 MPa to 400 MPa, has a minimum protrusion height Pmin of 100 nm or greater and a maximum protrusion height Pmax of 1,600 nm or smaller for either surface, and satisfies all of Formulae (1) to (3) when one of the surfaces is surface A and the other is surface B: 0.5≦Pa250-450/Pa≦1.0 (1), 0.5≦Pb450-1600/Pb≦1.0 (2), and 600≦Pa+Pb≦1,200 (3).
摘要:
A biaxially stretched polypropylene film includes protrusions on both surfaces, in which the biaxially stretched polypropylene film has a thickness t1 of 1 μm to 3 μm, has a tensile strength in the machine direction of 120 MPa to 250 MPa, has a tensile strength in the transverse direction of 250 MPa to 400 MPa, has a minimum protrusion height Pmin of 100 nm or greater and a maximum protrusion height Pmax of 1,600 nm or smaller for either surface, and satisfies all of Formulae (1) to (3) when one of the surfaces is surface A and the other is surface B: 0.5 Pa250-450/Pa≦1.0 (1), 0.5≦Pb450-1600/Pb≦1.0 (2), and 600≦Pa+Pb≦1,200 (3).
摘要:
Provided is a biaxially stretched polypropylene film for capacitors which has high withstand voltage characteristics when used as a dielectric for capacitors and which has highly suitable processability into elements. The biaxially stretched polypropylene film for capacitors has projections on both surfaces and has a thickness (t1, μm) of 4-20 μm. When one of the surfaces is expressed by surface A and the other by surface B, all of the following relationships are satisfied. 800≤SRzB≤1,300 (nm) 0.1≤SRzA/SRzB≤0.8 PBmin≥100 (nm) PBmax≤1,500 (nm) 0.4≤PB450-750/PB≤0.7.
摘要:
A biaxially oriented polypropylene film has projections on both surfaces of the film, wherein the height of the most common projection (PhZ) among the projections on each surface is not less than 100 nm and less than 400 nm on both surfaces, and the number of projections per 0.1 mm2 (Pc) on each surface is not less than 150 and less than 500 on both surfaces. The biaxially oriented polypropylene film is easily processed into an element and that, when processed into a capacitor, provides a capacitor having high withstand voltage characteristics and excellent noise characteristics.
摘要:
A biaxially oriented polypropylene film has projections on both surfaces of the film, wherein the height of the most common projection (PhZ) among the projections on each surface is not less than 100 nm and less than 400 nm on both surfaces, and the number of projections per 0.1 mm2 (Pc) on each surface is not less than 150 and less than 500 on both surfaces. The biaxially oriented polypropylene film is easily processed into an element and that, when processed into a capacitor, provides a capacitor having high withstand voltage characteristics and excellent noise characteristics.
摘要:
To enable extraction of one specific optical fiber from a plurality of optical fibers at remote sites. An environment variable apparatus is mounted to provide a temperature difference at a predetermined position of an optical fiber. An environment variable apparatus is mounted to detect scattered light of light incident on the optical fiber through one end thereof so as to extract a target optical fiber from a large member of optical fibers. Further, synchronous devices are mounted to transmit from the environment variable apparatus to the extracting apparatus a message in that the temperature difference is given to the optical fiber, and transmit from the extracting apparatus to the environment variable apparatus a decision signal as to whether or not the optical fiber is to be extracted.