High-strength polyimide porous membrane including benzimidazole and benzene lateral groups and manufacturing method thereof
A technology of polyimide and benzimidazole, applied in the field of polyimide porous membrane and its preparation, can solve the problems of small interaction force between fibers, poor mechanical properties of porous membrane, small size, etc., to improve processing performance , Improve the mechanical strength, improve the effect of tensile strength
Inactive Publication Date: 2013-12-04
BEIJING JIELANG CONTROLLABLE MEMBRANE TECH
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Abstract
The invention discloses a polyimide porous membrane including benzimidazole and benzene lateral groups. The structure of the polyimide porous membrane including the benzimidazole and the benzene lateral groups is shown as the formula (I), wherein in the formula, n:m=4:6. The molecular mass of the polymer is 50 thousand to 150 thousand. A novel polyimide porous membrane material which is good in heat-resistant performance and processable performance is designed from the molecular viewpoint and can be widely applied to the fields of battery diaphragms, capacitor diaphragms, air purification, sewage processing, low-dielectric materials, ultrafiltration membranes, protection materials, catalytic carriers and the like.
Application Domain
Heating/cooling textile fabricsNon-woven fabrics
Technology Topic
BenzimidazoleUltrafiltration +8
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PUM
Property | Measurement | Unit |
Glass transition temperature | 295.0 | °C |
Tensile strength | 65.0 ~ 75.0 | MPa |
Viscosity | 5.6 | pa·s |
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