Polyetherketone plastic

Connectors, switches, electric distributors, fuse boxes and other electric fittings need a subtle balance of electrical and mechanical properties, durability, cost and aesthetics. This broad field creates fierce competition not only between engineering thermoplastics and SMC/BMC for the main applications but also with polypropylene and polyethylene or PVC for the lower performance parts and, at the opposite end of the scale, with high-tech plastics such as polyetherketone, polyetherimide, liquid crystal polymers. .. For example, without claiming to be exhaustive ... 

Boric oxide is reported to be an effective fire retardant in engineering plastics such as polyphenylene ether (PPE)/high impact polystyrene (HIPS), polyetherketone, and polyetherimide.34-35 It is particularly effective when used in conjunction with PTFE or polyvinylidene fluoride. The use of boric oxide in conjunction with red phosphorus was reported to be an effective combination in fiberglass reinforced polyamide 6,6.36... 

Polyarylene Plastics - Examples of these plastics include polyetherketone, polyetheretherketone, polyetherketoneketone, polyphenylenesulfide, and others. 

In ICI the preliininary work at Fibres Mvlsion aimed at preparing polyetherketones such as I by polyaroylatlon was not taken beyond the preliminary stage and interest In these polymers transferred to the Plastics Division where they were regarded as crystalline analogues of the polyethersulphones After the decision In 1963 to concentrate on... 

This material has been reported to be an effective fire retardant at very low loadings (0.5-2%) in engineering plastics such as high impact polystyrene, polyetherketone and polyetherimide [3]. Boric oxide, when used in conjunction with red phosphorus, is an effective fire retardant in fibreglass reinforced nylon 6,6. Boric oxide softens at about 325°C. It is, however, hygroscopic and can absorb water and revert to boric acid without losing its fire retardant efficacy. 

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