Modern production in all areas is increasingly turning to natural materials. Many of them have truly unique properties. One example is textolite - entirely natural and used in many areas.
What is textolite
Textolite is a structural laminate that is obtained by hot pressing of cotton fabrics. The fabrics, in turn, are impregnated with a thermosetting binder based on phenol-formaldehyde resin. Sometimes polyester, phenol-formaldehyde, epoxy, polyamide, furan, silicone resins or thermoplastics are used as impregnation.
However, it is thanks to the cotton fabric that this material has compressive strength, increased impact strength and tolerates mechanical processing well: drilling, cutting or punching.
All these qualities determine the scope of use of textolite - the manufacture of parts loaded with alternating electrical and mechanical loads or operating under friction.
In addition, textolite is an excellent electrical insulator.
In general, the properties of this material largely depend on the properties of the fabrics and the binder from which the textolite is made, as well as the technology of its manufacture.
In this regard, a distinction is made between textolites, organotexolites, fiberglass laminates, asbestos laminates, carbon fiber laminates and basalt laminates. And the fabrics themselves differ in the type of weaving, thickness and surface density.
Scopes of PCB
Textolite has found application in many areas. For example, it is widely used in electrical and electronic engineering as an insulating material or heat insulator.
Due to its wear and vibration resistance, friction parts are created from it - bearings, bushings, rings, washers, etc. Some types of PCB are used in the chemical industry to work with aggressive media.
In addition, it is used for operation in transformer oil and in air under conditions of normal ambient humidity at a current frequency of 50Hz.
Machines and devices, parts of which are made of PCB and its derivatives, significantly increase the productivity of the enterprise as a whole.
Distinguish between sheet and core textolite.
Sheet textolite is a polymer designed for laying a shock-absorbing layer in electrical products. It is a composition of cotton fabric pressed and impregnated with a resin composition.
Core textolite is a special form of layering of the same cotton material. This winding method allows PCB to be used in high voltage industries.
