CN106739248A - A kind of automobile antibacterial sound insulating pad and preparation method thereof - Google Patents

A kind of automobile antibacterial sound insulating pad and preparation method thereof Download PDF

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Publication number
CN106739248A
CN106739248A CN201611036656.4A CN201611036656A CN106739248A CN 106739248 A CN106739248 A CN 106739248A CN 201611036656 A CN201611036656 A CN 201611036656A CN 106739248 A CN106739248 A CN 106739248A
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fiber
layer
modified
sound insulating
parts
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CN106739248B (en
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不公告发明人
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Hangzhou Zhilun Technology Co Ltd
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Zhengzhou Yuanran Biology Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0092—Producing upholstery articles, e.g. cushions, seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1009—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using vacuum and fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
    • B32B43/003—Cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/103—Agents inhibiting growth of microorganisms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/758—Odour absorbent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Abstract

The invention discloses a kind of automobile antibacterial sound insulating pad and preparation method thereof, automobile antibacterial sound insulating pad is prepared from by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer layer；Elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made, and modified fibre layer is made up of modified antibacterial and mouldproof fiber, low-melting point PET fiber, regenerated fiber, zein fiber, chitin fiber；The modified antibacterial and mouldproof fiber is made up of allicin, lignin, bamboo fibre, litsea citrate oil and PET particles；Interlayer adhesion process is binded using pinprick reinforcement, it is to avoid traditional gluing sound insulating pad bonding glue reduction soundproof effect, distributes the situation of pernicious gas；Low production cost of the present invention, environmental-protecting performance is high, improves low-and high-frequency ripple acoustic absorptivity, and with the effect of restraining and sterilizing bacteria effect, purification and regulation air condition, can anion releasing, air quality in lifting car body.

Description

A kind of automobile antibacterial sound insulating pad and preparation method thereof
Technical field
The present invention relates to technical field of automotive upholstery, specifically a kind of automobile antibacterial sound insulating pad and preparation method thereof.
Background technology
Automotive upholstery is generally mounted to motorcar interior, plays the effects, automobile such as beautification, protection and sound insulating and absorbing Antibacterial sound insulating pad can be applied to each position such as automobile engine nacelle, passenger compartment, luggage case, with the spy such as damping, attraction, heat-insulated Point, is increasingly pursuing the epoch of high-performance, environment-friendly type, lightweight, comfort level, and automotive trim turns into people as car conour Select a key factor of car, therefore the requirement more and more higher to automotive upholstery, current automobile antibacterial sound insulating pad it is main with Based on regenerated fiber felt and PU foamed materials；There is following technical problem：The fibrofelt smell that phenolic resin is reinforced is big, easily pollution Environment；Fibrofelt is exposed, easily causes VOC unqualified, in addition, the low weight of sound insulating pad, high intensity, every The performance indications such as sound, sound absorption properties turn into bottleneck, govern the development of sound insulating pad, and weight is big in the prior art, price is high, utilization The low sound insulating pad of rate cannot meet the growing demand of people, in the urgent need to exploitation performance is more superior, possess various work( The automobile antibacterial sound insulating pad of energy improves automotive trim quality to increase the market competitiveness.
The content of the invention
It is an object of the invention to provide a kind of sound-absorbing effect it is good, have no irritating odor, volatile organic matter is few, with removing Dirt purification, sterilizing moisture absorption, anti-mold effect, and automotive light weight technology, the automobile antibacterial sound insulating pad and its system of environmental protection requirement can be met Preparation Method, to solve the problems, such as to be proposed in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 10-20 parts of antibacterial and mouldproof fiber, low-melting point PET Fiber 5-10 parts, regenerated fiber 5-10 parts, zein fiber 4-6 parts, chitin fiber 2-4 parts；The modified antibacterial and mouldproof fiber It is prepared from by the following component according to weight portion：Allicin 4-10 parts, lignin 10-20 parts, bamboo fibre 6-10 parts, the fruit of a cubeb litsea tree Oily 6-10 parts, 50-100 parts of PET particles.
As further scheme of the invention：The modified antibacterial and mouldproof fiber, by the following component system according to weight portion It is standby to form：7 parts of allicin, 15 parts of lignin, 8 parts of bamboo fibre, 8 parts of litsea citrate oil, 75 parts of PET particles.
As further scheme of the invention：The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 10-20:5-10:5-10:4-6:Modified fibre is obtained after the weight ratio of 2-4 is well mixed, modified fibre is sent into by feeding cotton machine Carding machine carries out combing, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Will Modified fibre layer carries out pinprick reinforcement on needing machine, and acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting processing on semi-finished product and obtain automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
As further scheme of the invention：The step 2) in, a diameter of 0.05mm of modified fibre.
As further scheme of the invention：The density of the elastic fibrous layer is 80-180g/m2, thickness is 0.8- 1.4mm, the density of modified fibre layer is 500-1400g/m2, thickness is 4.4-7.2mm.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention improves automobile antibacterial sound insulating pad low weight, height The performance indications such as intensity, sound-proofing, sound absorption properties, can fully meet automotive light weight technology design requirement, using recyclable recycling material Material is made, and reduces production cost, improves environmental-protecting performance, improves low-and high-frequency ripple acoustic absorptivity, and fine by design flexibility Dimension layer and modified fibre layer so that automobile antibacterial sound insulating pad prepared by the present invention has restraining and sterilizing bacteria effect, purification and regulation empty The effect of gaseity, can effectively adsorb other bad smells and pollution factor in air, improve VOC management and control efficiency, and can discharge Anion, air quality in lifting car body；Due to material modified many using natural reproducible composition, reduce and conventional petroleum is provided The dependence in source, meets sustainable development requirement, with complete natural circulation type all and can biological decomposition the characteristics of, it is more environmentally-friendly.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Embodiment 1
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 10 parts of antibacterial and mouldproof fiber, low-melting point PET fiber 5 parts, 5 parts of regenerated fiber, 4 parts of zein fiber, 2 parts of chitin fiber；The modified antibacterial and mouldproof fiber is by following according to weight The component of part is prepared from：4 parts of allicin, 10 parts of lignin, 6 parts of bamboo fibre, 6 parts of litsea citrate oil, 50 parts of PET particles.
The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 10:5:5:4:Modified fibre is obtained after 2 weight ratio is well mixed, modified fibre is combed by feeding cotton machine feeding carding machine Reason, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Modified fibre layer is existed Pinprick reinforcement is carried out on needing machine, acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting processing on semi-finished product and obtain automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 2
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 20 parts of antibacterial and mouldproof fiber, low-melting point PET fiber 10 parts, 10 parts of regenerated fiber, 6 parts of zein fiber, 4 parts of chitin fiber；The modified antibacterial and mouldproof fiber is by following according to weight The component for measuring part is prepared from：10 parts of allicin, 20 parts of lignin, 10 parts of bamboo fibre, 10 parts of litsea citrate oil, PET particles 100 Part.
The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 20:10:10:6:Modified fibre is obtained after 4 weight ratio is well mixed, modified fibre is combed by feeding cotton machine feeding carding machine Reason, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Modified fibre layer is existed Pinprick reinforcement is carried out on needing machine, acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting processing on semi-finished product and obtain automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 3
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 15 parts of antibacterial and mouldproof fiber, low-melting point PET fiber 7 parts, 8 parts of regenerated fiber, 5 parts of zein fiber, 3 parts of chitin fiber；The modified antibacterial and mouldproof fiber is by following according to weight The component of part is prepared from：7 parts of allicin, 15 parts of lignin, 8 parts of bamboo fibre, 8 parts of litsea citrate oil, 75 parts of PET particles.
The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 15:7:8:5:Modified fibre is obtained after 3 weight ratio is well mixed, modified fibre is combed by feeding cotton machine feeding carding machine Reason, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Modified fibre layer is existed Pinprick reinforcement is carried out on needing machine, acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting on semi-finished product processing obtain, automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 4
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 13 parts of antibacterial and mouldproof fiber, low-melting point PET fiber 6 parts, 6 parts of regenerated fiber, 4 parts of zein fiber, 2 parts of chitin fiber；The modified antibacterial and mouldproof fiber is by following according to weight The component of part is prepared from：5 parts of allicin, 13 parts of lignin, 7 parts of bamboo fibre, 7 parts of litsea citrate oil, 60 parts of PET particles.
The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 13:6:6:4:Modified fibre is obtained after 2 weight ratio is well mixed, modified fibre is combed by feeding cotton machine feeding carding machine Reason, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Modified fibre layer is existed Pinprick reinforcement is carried out on needing machine, acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting on semi-finished product processing obtain, automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 5
A kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Dimension layer is prepared from；The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio is made；Institute Modified fibre layer is stated to be prepared from by the following component according to weight portion：Modified 17 parts of antibacterial and mouldproof fiber, low-melting point PET fiber 9 parts, 9 parts of regenerated fiber, 6 parts of zein fiber, 4 parts of chitin fiber；The modified antibacterial and mouldproof fiber is by following according to weight The component of part is prepared from：9 parts of allicin, 17 parts of lignin, 9 parts of bamboo fibre, 9 parts of litsea citrate oil, 90 parts of PET particles.
The preparation method of the automobile antibacterial sound insulating pad, comprises the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding and mixes Close, mixed fiber carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400- 500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then by allicin, lignin, bamboo fibre difference Ultramicro grinding is carried out, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) prepare ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula The litsea citrate oil of amount is blended granulation in double screw extruder, and modified antibacterial and mouldproof fiber is made according to a conventional method after being made master batch It is standby；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber= 17:9:9:6:Modified fibre is obtained after 4 weight ratio is well mixed, modified fibre is combed by feeding cotton machine feeding carding machine Reason, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Modified fibre layer is existed Pinprick reinforcement is carried out on needing machine, acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastomer is respectively laid in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, and acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad half into Product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould： Mould is gone up first to vacuumize, the pumpdown time is 1-20s, pressure is 0.1-0.02MPa, high temperature steaming is passed through while vacuumizing Vapour；Vacuum is kept, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the height Warm vapor (steam) temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, enter at normal temperatures Row cooling and shaping, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure It is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting on semi-finished product processing obtain, automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
In embodiment 1-5, a diameter of 0.05mm of the modified fibre, the density of the elastic fibrous layer is 80-180g/ m2, thickness is 0.8-1.4mm, and the density of modified fibre layer is 500-1400g/m2, thickness is 4.4-7.2mm.
Beneficial effects of the present invention are described further with reference to experiment.
The automobile antibacterial sound insulating pad prepared using embodiment 1-5 is done sound insulation and tested, and transaudient and sound insulation test is at 10 square metres Standard room in carry out, test result is as shown in table 1-2：
The embodiment of the present invention 1-5 soundproof effect experimental results of table 1
The embodiment of the present invention 1-5 sound transmission loss experimental results of table 2
Experimental data explanation：II C carries out the measurement of the sound difference of each frequency range according to international requirement, is directly commented according to ISO sound insulation Valency curve evaluation result out is sound insulation class or weighted transmission loss, the value not comprising wall area, sound receiving room's absorption, The amendments such as flanking transmission loss；Therefore sound insulation class is commonly used to describe the actual defening effect between two adjacent rooms, clashes into Sound insulation test is tested according to ASTM ASTM49209 methods, clashes into acoustical ratings according to American society Meeting ASTME989 standard classes, II C grades higher, and sound insulation property is better, and as can be seen from Table 1 and Table 2, sound insulating pad of the present invention can Effectively to completely cut off to high frequency noise and low frequency noise, and STC is high.
The automobile antibacterial sound insulating pad prepared using embodiment 1-5 carries out antibacterial and mouldproof effect experiment, and Detection results are as follows：Make With more than six months, the antimicrobial efficiency to staphylococcus aureus was more than 95%, and the antibiotic rate to Escherichia coli reaches 93% More than, mould proof grade is 0 grade, without Signs of Mould.Specifically, carrying out large intestine bar with automobile antibacterial sound insulating pad prepared by embodiment 3 Bacterium, the bacteriostatic experiment of staphylococcus aureus, experimental result is as shown in table 3-4：
To the fungistatic effect of Escherichia coli in table 3 five hours
To the fungistatic effect of staphylococcus aureus in table 4 five hours
From table 3 and table 4, automobile antibacterial sound insulating pad of the invention has aobvious to Escherichia coli and staphylococcus aureus The restraining and sterilizing bacteria effect of work, its restraining and sterilizing bacteria ingredient origin can kill germ in modified fibre layer, the allicin in allicin, and And the mould such as including aspergillus flavus, aspergillus niger, aspergillus fumigatus can be effectively killed, and the mould function of coloured glaze base of mould can be destroyed, hinder mould Metabolism, and can effectively cover bad smell in air；Litsea citrate oil is to aspergillus flavus, aspergillus niger, variegated Sibutramine Hydrochloride, black root It is mould with killing action；The pH value of bamboo fibre is neutral, nontoxic, and suspendability is good, and absorption property is strong, and unit weight is light, oil absorbency 115%, have excellent extensibility, have impact strength higher, tensile strength, tearing strength, light weight it is soft it is interior mill property it is good, do pressure Spend the aspect high-quality effect such as good；With unique pore structure, body weight is light and soft, and porosity is big, and absorption property is strong, forms lighter color It is light soft；Bamboo fibre main component is silicic acid matter, and there are countless pores, the adsorbable, peculiar smell decomposed in air, with tune in surface Wet, deodorization functions；Not only with non-ignitable, dehumidifying, lignin has adsorptivity and ion exchangeable, is passed through using self component The method ionization noxious material for absorb, decomposing, released mineral matter simultaneously balances mineral matter quantity, and lignin has antifatigue scarce with resistance to Oxygen is acted on；Energy detoxicating and resolving a mass, has therapeutic efficiency to contact dermatitis；Various chemical toxicants can be removed, and can be discharged to body The beneficial infrared ray of body；Zein fiber and chitin fiber have good drapability, slipping, natural bacteriostatic, with good Heat resistance and pleasant sensation effect, and its raw material for natural reproducible corn stigma and mushroom, reduce to conventional petroleum resource Rely on, meet sustainable development requirement, with complete natural circulation type all and can biological decomposition the characteristics of.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from Make a variety of changes.

Claims (5)

1. a kind of automobile antibacterial sound insulating pad, by two-layer elastic fibrous layer and the modified fibre being arranged between two-layer elastic fibrous layer Layer is prepared from；It is characterized in that：The elastic fibrous layer is according to low-melting fiber:Cotton:PET is with 0.95:1:1 weight Than being made；The modified fibre layer is prepared from by the following component according to weight portion：Modified 10-20 parts of antibacterial and mouldproof fiber, 5-10 parts, regenerated fiber 5-10 parts, zein fiber 4-6 parts, chitin fiber 2-4 parts of low-melting point PET fiber；The modified antibacterial Mould proof fiber is prepared from by the following component according to weight portion：Allicin 4-10 parts, lignin 10-20 parts, bamboo fibre 6-10 Part, litsea citrate oil 6-10 parts, 50-100 parts of PET particles.
2. automobile antibacterial sound insulating pad according to claim 1, it is characterised in that the modified antibacterial and mouldproof fiber, by with Under be prepared from according to the component of weight portion：7 parts of allicin, 15 parts of lignin, 8 parts of bamboo fibre, 8 parts of litsea citrate oil, PET particles 75 parts.
3. a kind of preparation method of automobile antibacterial sound insulating pad as claimed in claim 1, it is characterised in that comprise the following steps：
1) elastic fibrous layer is prepared：By low-melting fiber:Cotton:PET is with 0.95:1:1 weight ratio carries out shredding mixing, mixes Fiber after conjunction carries out combing by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving cotton machine, Laying forms elastic fibrous layer；Elastic fibrous layer is carried out into pinprick reinforcement on needing machine, acupuncture speed is 400-500r/min；
2) modified fibre layer is prepared：
2.1) modified antibacterial and mouldproof fiber is prepared：
2.1.1 allicin, lignin, bamboo fibre) are weighed according to formula, then allicin, lignin, bamboo fibre is carried out respectively Ultramicro grinding, is well mixed after crossing 800-1000 eye mesh screens；
2.1.2 PET particles) are weighed according to formula, the heating of PET particles is fused into molten mass；
2.1.3) by step 2.1.2) the ultra micro mixed-powder, the step 2.1.2 that prepare) in the molten mass and formula ratio that prepare Litsea citrate oil is blended granulation in double screw extruder, is made after master batch that to be made modified antibacterial and mouldproof fiber according to a conventional method standby With；
2.2) according to modified antibacterial and mouldproof fiber:Low-melting point PET fiber:Regenerated fiber:Zein fiber:Chitin fiber=10- 20:5-10:5-10:4-6:Modified fibre is obtained after the weight ratio of 2-4 is well mixed, by modified fibre by feeding cotton machine feeding combing Machine carries out combing, forms modified fibre net；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；Will be modified Fibrage carries out pinprick reinforcement on needing machine, and acupuncture speed is 400-800r/min；
3) automobile antibacterial sound insulating pad semi-finished product are prepared：One layer of elastic fibrous layer is respectively laid in the upper and lower faces of modified fibre layer, so Pinprick reinforcement is carried out on needing machine afterwards, acupuncture speed is 1000-1200r/min, obtain automobile antibacterial sound insulating pad semi-finished product；
4) by step 3) the automobile antibacterial sound insulating pad semi-finished product after pinprick reinforcement are placed in and compression molding are carried out in mould：First Upper mould is vacuumized, and the pumpdown time is 1-20s, and pressure is 0.1-0.02MPa, and high-temperature steam is passed through while vacuumizing；Protect Vacuum is held, continuing to be passed through high-temperature steam carries out hot briquetting, and the high temperature steam pressure is 0.6-2MPa, the high-temperature steam Temperature is 105-115 DEG C, and the pressure of hot briquetting is 5-10MPa, and molding time is 40-60s；
5) cool down：By through step 4) treatment after automobile antibacterial sound insulating pad semi-finished product be put into cooling tool, carry out at normal temperatures cold But shape, cool time is 30-45s；
6) by step 5) cooling after automobile antibacterial sound insulating pad semi-finished product cut using water-jet cutting machine, cutting pressure is 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then carry out thrusting on semi-finished product processing obtain automobile antibacterial every Sound pad finished product, finished product thickness 8-12mm.
4. the preparation method of automobile antibacterial sound insulating pad according to claim 3, it is characterised in that the step 2) in, change A diameter of 0.05mm of property fiber.
5. the preparation method of automobile antibacterial sound insulating pad according to claim 3, it is characterised in that the elastic fibrous layer Density is 80-180g/m2, thickness is 0.8-1.4mm, and the density of modified fibre layer is 500-1400g/m2, thickness is 4.4- 7.2mm。
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