What are the common safety helmets made of?
Synthetic resin material:The most widely used materials. There are the types of unsaturated resin..ABS. polycarbonate polyethylene. The modified polypropylene. The safety cap from these materials have a better impact resistance and light weight. The appearance quality is better. With a variety of forms available.Safety helmet made of metal material (such as aluminium alloy):Its impact resistance is not as good as that of plastic and glass steel helmets. This helmet can not be used in workplaces where electric shock is dangerousSafety cap for gum material:With good impact resistance, rigidity, high temperature resistance, corrosion resistance and antistatic properties, it has long been the first choice for underground miner's safety helmetsMake a safety helmet with bamboo strips:A special kind of material in our country. It was adopted more frequently in South China in the early yearsThe safety cap made of bamboo strips has better toughness, better shock resistance, better ventilation performance and poor puncture resistance. The steel plate is usually added to the top of the cap to enhance its puncture performance
Glass fiber reinforced Vigny fiber: low thermal conductivity, good resistance to high temperature, low temperature, corrosion resistance, combustion resistance, better electrical insulation performance
ABS (A), acrylonitrile butadiene (B) and ethylene propylene (S): good rigidity, no deformation, impact resistance, corrosion resistance, electrical insulation and good corrosion resistance, high temperature resistance of 100 DEG C is not resistant to combustion, low temperature resistance, anti aging performance is poor
High density polyethylene (HDPE): good rigidity, high mechanical strength, high temperature resistance of 127 DEG C and low temperature of -70 DEG C, electrical insulation and good corrosion resistance of lightweight materials with poor toughness, soft surface to avoid contact with gasoline, otherwise poor performance
