Environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material
Technical field:
The present invention relates to a kind of composite base material.Especially relate to a kind of environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material.Be applicable to that mainly automotive upholstery makes compound base material.Make base material applicable to furniture, building materials, packing etc. again.Belong to the composite board technical field.
Background technology:
Along with the develop rapidly of automobile industry, also more and more higher to the quality requirement of automotive upholstery.The quality of inside gadget key again depends on its composite base material.What present automotive upholstery composite base material adopted usually is PU plate (polyurethane sheet) or PP wood flour board.The PU plate is used to produce roof of the vehicle.PP wood flour board is used to produce Auto door inner plating etc.Its advantage is a good moldability, the hot strength height.But because PU is synthetic by chemical reaction by industrial chemicals such as polyethers, toluene, benzene is toxic gas, and it has certain injury to human body, does not meet environmental requirement.PP wood flour board is bonding with organic glue by PP and wood powder, because glue includes benzene, therefore, it is poisonous equally, does not harmfully meet environmental requirement again.Along with the progressively reinforcement of human health consciousness, and to the raising of environmental protection requirement, original PU plate and PP wood flour board be the needs of incompatibility Hyundai Motor development.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of asepsis environment-protecting, light, the good hygroscopicity of deal, the environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material that cost is low.
The object of the present invention is achieved like this: a kind of environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material, it is by Intermediate substrate, surface layer nonwoven and compound the making of bottom PP film, is characterized in that Intermediate substrate made through the auxilliary net of batch mixing by monofilament, flaxen fiber, polyster fibre and polypropylene fiber.
Monofilament and flaxen fiber deal are light, and density is low, pine, and good hygroscopicity, price is low, but soundproof effect is relatively poor after adding, and hot strength is lower, and mouldability is relatively poor, so its consumption is controlled at and accounts for 10~30% of raw material gross weight.
Polyster fibre stretches and compression strength height, good moldability, soundproof effect are good, but deal trial of strength, density height, price is higher.Therefore its consumption is controlled at and accounts for 30~40% of raw material gross weight.
The polypropylene fiber hot melt is higher, and cementation is played in heating pressurization back.To replace poisonous binding agent.But its price is higher.Therefore its consumption is controlled at and accounts for 40~50% of raw material gross weight.
The weight ratio of Intermediate substrate each component of the present invention is preferably: monofilament and flaxen fiber 10~25%, polyster fibre 30~40%, polypropylene fiber 40~50%.
After said ratio, guaranteeing that the automotive upholstery composite base material reaches under the prerequisite of desirable strength, mouldability and soundproof effect, the present invention is nontoxic, environmental protection, and deal is light, and density is low, good hygroscopicity, cost is lower.
The specific embodiment:
The present invention relates to a kind of environment-protecting thermoplastic crude palm fibrilia automobile inner decoration member composite base material, it is by Intermediate substrate, surface layer nonwoven and compound the making of bottom PP film.Intermediate substrate is made through the auxilliary net of batch mixing by 10~30% monofilaments and flaxen fiber, 30~40% polyster fibres and 40~50% polypropylene fibers.
Embodiment 1:
The first step: batch mixing
Respectively getting monofilament and flaxen fiber 10kg, polyster fibre 40kg and polypropylene fiber 50kg mixes and makes compound;
Second step: lapping
The compound drawout that the first step is made is made Intermediate substrate, lay nonwoven respectively and the PP film is made the composite base material semi-finished product at the upper and lower faces of Intermediate substrate again
The 3rd step: blanking, heating pressurization and compression molding
The composite base material finished product is made in the blanking of above-mentioned composite base material semi-finished product, heating pressurization and compression molding.
Embodiment 2:
Respectively get monofilament and flaxen fiber 30kg, polyster fibre 30kg and polypropylene fiber 40kg and mix and make compound, all the other are with example 1.
Embodiment 3:
Respectively get monofilament and flaxen fiber 25kg, polyster fibre 35kg and polypropylene fiber 40kg and mix and make compound, all the other are with example 1.
Embodiment 4:
Respectively get monofilament and flaxen fiber 15kg, polyster fibre 40kg and polypropylene fiber 45kg and mix and make compound, all the other are with example 1.
Embodiment 5:
Respectively get monofilament and flaxen fiber 15kg, polyster fibre 40kg and polypropylene fiber 45kg and mix and make compound, all the other are with example 1.
Embodiment 6:
Respectively get monofilament and flaxen fiber 20kg, polyster fibre 30kg and polypropylene fiber 50kg and mix and make compound, all the other are with example 1.