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| Category: | Electronics & Electricity / Insulation Material |
| Label: | Phenolic Paper , phenolic sheet , pc board |
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| Last Online:01 Feb, 2010 |
| Embed HTML Code: | Properties and Applications: NEMA grades XP, XPC and XXXPC Paper Reinforced Phenolic -- natural color is typically light tan to brown. These grades are composed of a paper base impregnated with a phenolic resin binder. (Phenolics are the oldest, best-known general purpose thermoset resins. They are among the lowest in cost and easiest to process. Phenolics are quite adequate for a fair percentage of electrical applications. Generally speaking, they are not equivalent to epoxies in resistance to moisture, humidity, dimensional stability, shrinkage and retention of electrical properties in extreme environments.) The paper reinforced phenolic has good electric strength properties with fair mechanical strength and are outstanding for use as template material and/or back-up material. A good rule of thumb in selecting a paper grade is to remember the more X's the better the electrical properties, while the fewer X's represent superior mechanical properties. Paper grades can be modified by adding plasticizers to make them more conductive to part punching resulting in a P suffix added to the X designation, i.e., XP, XXP, XXXP. Sheet Sizes: Thickness: 0.5 mm to 80 mm Size: 1020X1220 mm,1020X1020 mm |
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