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The automotive industry is a market with great potential fiber material , although the raw materials used in the car by weight of the fibrous material in only 3% . Parts based on the nonwoven material in the car now has more than 40 kinds of applications , the filter media from the air and oil to the interior materials , interior materials , including non-woven sound, heat insulating materials , structural and decorative pieces. Nonwoven molded interior trim including doors , trunk lid , roof , car cushion , seat back , etc. .
1997 , the production of a car is only 1 square meter average nonwoven materials today need nonwoven material 20 m2 ( 15 to 20 kg weight ) , and the amount continues to increase . The applied area ratio occupied by the car type of non- woven material ( by area ) , respectively: acoustic, insulation , cushioning material 17% isolated , 43% of the carpet , the compartment liner 13% , 10% hood gasket seat 6% , 6% roof interior , cabin cover 3% , door trim 1% 1% other .
According to Volkswagen statistics, models use only a day of golf textile interior materials for automobiles reached 100,000 to 150,000 square meters ( 5000 Nissan golf car , vehicle with 20 to 30 square meters ) , of which the majority of non -woven material does not include a substrate such as fiber reinforced plastic panels , sound absorbing materials containing non-woven material. Japan Series car used in the non -woven material of the roof surface decoration is very common , 70% in Japan , 50% in Europe , in North America due to the non -woven material excellent formability received widespread attention , predict market will further expand.
A main vehicle with a non -woven material
Car nonwoven fiber material used include polyester fibers , polypropylene fibers, glass fibers, carbon fibers and natural fibers (e.g., recycled cotton , flax , hemp, jute , sisal , etc. ) .
1.1 Polyester
1.1.1 PEN
Because of the new polyethylene terephthalate and polyethylene naphthalate (PEN) fiber has extremely excellent mechanical properties and a wide range of uses, aroused great interest of many chemical manufacturers , have invested in building PEN fiber factories, and development of new products such as DuPont , Teijin, Toray, Toyobo , Eastman , ICI ( Emperor of ) , Hoechst Principal companies are in a leading position .
PEN fiber than PET fiber has more excellent performance , high modulus, good dimensional stability , deformation, elastic foot, rigid, in terms of industrial textiles is very promising , mainly for : ¢Å automotive anti-collision inflatable safety bag. This security bags folded small size, light weight, high strength, good flame retardant properties, the PEN fibers woven fabric can meet this requirement ; skeletal material ¢Æ tires. Since the PEN fiber having a large resiliency and rigidity , a rubber reinforcing material to meet the high temperature resistance, fatigue resistance, impact resistance , adhesion and creep resistance requirements, and therefore will become a substitute wire , PA66, ideal material such as PET ;
Japan Toyobo cooperation with Teijin , composite spinning technology and techniques have been developed PEN / PET sheath-core composite fiber , which has excellent performance , low cost, reinforcing materials for tire cord , the rubber very good adhesion can also be used for weaving Car Seat covers, safety harness and the like.
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