Flame Retardant engineering thermoplastic compounds.
As with most decisions concerning selection of material, the choice among flame retardant plastics frequently involves properties or cost tradeoffs. Although some polymers are inherently flame retardant because of their composition, others require additives that almost always reduce other properties. Specifically, such additives tend to lower tensile and impact strength, HDT and arc track resistance to various degrees. Hence fiberglass is added. The vastly improved physicals dramatically increases the engineering capabilities of the flame retardant thermoplastics and sreatly expand their areas of applications. In addition to these property improvements, glass fiber reinforcement enhances the fire retardant performance of the base resin. Fiber reinforcement increases thermal conductivity, minimises ' after slow ', prevents drippin g and slows the rate of burning . This improved fire retardancy coupled with the physical replacement of combustible plastics with slass fiber minimises the amount of flame retardant additives needed, further enhancing the end use performance of the fortified composites. Material flows readily and fills out thin sections. Surface is uniform and smooth. End use performance is more consistent.
There is broad potential for Sandeep's Flame Retardant compounds from aerospace to fashion coloured appliance housings. Each of the materials is available in variety of loading , additionally, other modifiers and fillers such as PTFE lubricants can be added to these basic formulations to yield a composite having a special set of properties for a particular application. The grades available are U.L. 94 V-0, U.L. 94 V-1 and U.L. 94 V-2.
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The following properties are influenced by the addition of fiberglass in any basic thermoplastics:
1. Improved mechanical properties, creep resistance, thermal conductivity & heat distortion temperature.
2. Enhanced tensile & flexural strength & impact resistance.
3. Improved (LPV) load & velocity bearing capability of a material.
4. Lower mould shrinkage.
5. Better electrical properties.
6. Ease of fabrication.
7. Other dynamic properties viz. cyclic loading & fatigue endurance are also markedly enhanced.