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Vulcanised Fibre

This material has been known for many years, being used originally in the making of electric lamp filaments. In principle vulcanised fibre is produced by the action of zinc chloride on absorbent paper. The zinc chloride causes the cellulosic fibres to swell and be covered with a gelatinous layer. Separate layers of paper may be plied together and the zinc chloride subsequently removed to leave a regenerated cellulose laminate. [Pg.634]

The removal of zinc chloride involves an extremely lengthy procedure. The plied sheets are passed through a series of progressively more dilute zinc chloride solutions and finally pure water in order to leach out the gelatinising agent. This may take several months. The sheets are then dried and consolidated under light pressure. [Pg.634]

The sheets may be formed to some extent by first softening in hot water or steam and then pressing in moulds at pressures of 200-500 Ibf/in (1.5-3.5 MPa). Machining, using high-speed tools, may be carried out on conventional metal-working machinery. [Pg.634]

STANNETT, V., Cellulose Acetate Plastics, Temple Press, London (1950) [Pg.634]

DAVIDSON, R. L., and siTTiG, M., Water Soluble Resins, Reinhold, New York (1962) [Pg.634]

The die plate E is first made from a piece of tool. steel, although for washers in vulcanised fibre and like substances ordinary mild steel is suitable. The plate is marked oif, and the two holes for the large and smaller punches drilled and reamed. The plate F for holding the... [Pg.101]

UL746 A B C D E Underwriters Laboratories. Pol5mieric materials Short term property evaluations Long term property evaluations Use in electrical equipment evaluations Fabricated parts Industrial laminates, filament wound tubing, vulcanised fibre, and materials used in printed wiring boards... [Pg.122]

Anglo-American Vulcanised Fibre Co Ltd B Enalon Plastics Ltd B... [Pg.179]

Aladdin Components Ltd Alpa Steel Plastics Ltd Anderson (C F) Son Ltd Anglo American Vulcanised Fibre Co Ltd Arborite Ltd... [Pg.180]

Plastics made from natural substances, e.g., Celluloid, cellulose acetate, vulcanised fibre, casein plastics (galalith)... [Pg.13]

A product used in upholstery and as a resilient packaging material. It is made by spraying a loose mat of curled animal hair with latex and applying heat to vulcanise the rubber. The resilience of the product comes from the fibres, the junction points of which are anchored by the rubber. [Pg.55]

Cellulose fibres produced from hardwoods, with various chemical surface treatments to ensure that they are compatible with rubbers, can be used to produce high modulus vulcanisates. The bond between rubber and fibres is created during vulcanisation. These fibres can be used to reinforce extruded hoses gaining orientation in the direction of flow. There is a range of fibres available which are compatible with different rubber types. [Pg.148]

Conveyor systems are applied in a number of areas in the rubber industry. The types used can range from simple canvas belt conveyors used for haul-off from conventional extruders, to systems used for transport and cooling of profile products, both in and emerging from continuous vulcanisation units. The latter types have to be resistant to the temperatures used in such systems and are variously constructed from glass fibre-reinforced polytetrafluoroethylene or a silicone rubber covered belt. [Pg.175]

The wire beads used are produced from a combination of multi-strand copper, zinc or brass coated high-tensile steel wires. The required number of wires are formed into the required shape and then passed through a cross-head extruder to be coated with rubber compound. The coated wire layers are then formed into a coiled ring and the free wire ends secured together. For certain heavy duty applications use is made of either a light weight rubberised fabric or a small fibre filled rubber sheet to cover the joint area. In some cases the bead construction is also partially vulcanised. [Pg.203]

Table 11.7 Mechanical properties of vulcanisates with varying fibre length... Table 11.7 Mechanical properties of vulcanisates with varying fibre length...
Specifically in phenol-formaldehyde resins [100]. Polymers have been separated using pyrolysis-GC. This approach, which yields an identifiable pyro-gram suitable of being further characterised by mass spectrometry, has been successful in the separation of acrylic plastics [101], phenol-formaldehyde polycondensate [102], vulcanised elastomers [103], silane coupling agents [104], polyquinones [105], polyester, polyamide and polyethylene fibres [106], styrene-butadiene rubbers [107] and in the classification of PVC tape [108]. [Pg.166]

ABRASION FAILURE OF VULCANISATES CONTAINING SHORT FIBRES... [Pg.84]

Recent developments in the use of a range of methacrylate coagents to modify the performance of peroxide vulcanised elastomers are summarised. Peroxide vulcanisation has successfully been used in the past to improve heat resistance, but there have been a number of adverse comparisons with sulphur vulcanisation, most notably in tear strength and dynamic performance. The current status is reported, as is the improvement of the adhesion of many elastomers to a range of metals and fibres. [Pg.78]

See other pages where Vulcanised Fibre is mentioned: [Pg.634]    [Pg.634]    [Pg.923]    [Pg.634]    [Pg.634]    [Pg.634]    [Pg.634]    [Pg.181]    [Pg.634]    [Pg.634]    [Pg.923]    [Pg.634]    [Pg.634]    [Pg.634]    [Pg.634]    [Pg.181]    [Pg.840]    [Pg.151]    [Pg.75]    [Pg.81]    [Pg.840]    [Pg.27]    [Pg.331]    [Pg.304]    [Pg.306]    [Pg.840]    [Pg.215]    [Pg.33]    [Pg.31]    [Pg.252]    [Pg.292]    [Pg.363]    [Pg.411]    [Pg.168]    [Pg.169]   


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