Lightweight Helmet

Class C now Class C Designed for comfort, these lightweight helmets offer limited protection. They protect workers from bumping against fixed objects but do not protect against falling objects or electric shock. 

Lightweight helmets are now worn by most bikers and skiers, which improves safety. Many of the ski helmets have improved features such as removable inserts for warmth and vents that can be opened or closed for cooling. Wearable water backpacks are now commonplace among many athletes and are more convenient than the standard water bottle. 

Safety - lightweight polycarbonate cycle helmets, fire-retardant furniture. 

We are surrounded by synthetic polymers in our daily lives. This cyclist rides on synthetic rubber tires, drinks from a polyethylene water bottle, wears a protective Lexan helmet and goggles, and uses a lightweight nylon backpack. 

Polycarbonates are formed from phosgene and a diol. The most widely used polycarbonate is Lexan, a lightweight, transparent material used in bike helmets, goggles, catcher s masks, and bulletproof glass. 

A major use of Kevlar is in rigid and soft body armour protective applications. Kevlar fabric is bullet and fragment resistant, lightweight, flexible and comfortable, has excellent thermal properties, is resistant to cuts and chemicals and is flame resistant and self-extinguishing. The uses include bulletproof vests, chainsaw leg protection and military uses for helmets and armoured vehicles, cargo containers, armour shields and cockpit doors. 

Kevlar—A synthetic yellow-brown fiber of very high tensile strength, woven into bulletproof vests, molded into solid sheets of lightweight armor (from aircraft to helmets). Kevlar is the brand name from DuPont used in bulletproof jackets. 

Figure 22.10. Feasibility study for components made from SR-PP composites (a) industrial safety helmet (JSP Ltd.) [82] (b) underbody shield of a Mercedes A-Qass (serial part of a self-reinforced PP composite) [38] and (c) lightweight construction kayak Ultimative 12 (Native Watercraft) [83[...

LC polyester fibers have high strength and stiffness and are lightweight. Fabrics of LC polyester fibers (such as Vectran fibers) have been used as ballistic garments, helmets, and military flak jackets. Excellent cut/tear resistance and thermal insulation also make LC polyesters fibers desirable for protective gloves and clothing. 

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