CN106739248B - 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
CN106739248B
CN106739248B CN201611036656.4A CN201611036656A CN106739248B CN 106739248 B CN106739248 B CN 106739248B CN 201611036656 A CN201611036656 A CN 201611036656A CN 106739248 B CN106739248 B CN 106739248B
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fiber
parts
modified
antibacterial
sound insulating
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CN106739248A (en
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不公告发明人
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Hangzhou Zhilun Technology Co., Ltd.
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Hangzhou Zhilun 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
    • B29D2009/00—
    • 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 by two layers of elastic fibrous layer and the modified fibre layer being arranged between two layers of elastic fibrous layer；Elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1, and modified fibre layer is made by being modified antibacterial and mouldproof fiber, low-melting point PET fiber, regenerated fiber, zein fiber, chitin fiber；The modified antibacterial and mouldproof fiber is made of allicin, lignin, bamboo fibre, litsea citrate oil and PET particle；Interlayer adhesion process is binded using pinprick reinforcement, avoids the case where traditional gluing sound insulating pad bonding glue reduces soundproof effect, distributes pernicious gas；Production cost of the present invention is low, and environmental-protecting performance is high, improves low-and high-frequency wave acoustic absorptivity, and with restraining and sterilizing bacteria effect, purification and the effect for adjusting air condition, can discharge anion, promote air quality in 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 technique
The effects of automotive upholstery is generally mounted to motorcar interior, plays beautification, protection and sound insulating and absorbing, automobile Antibacterial sound insulating pad can be applied to each position such as automobile engine nacelle, passenger compartment, luggage case, have the spies such as damping, attraction, heat-insulated Point, in the epoch for increasingly pursuing high-performance, environment-friendly type, lightweight, comfort level, automobile interior decoration becomes people as car conour Select a key factor of vehicle, therefore the requirement to automotive upholstery is higher and higher, at present automobile antibacterial sound insulating pad mainly with Based on regenerated fiber felt and PU foamed material；There are following technical problems: the fibrofelt smell that phenolic resin is reinforced is big, is easy pollution Environment；Fibrofelt is exposed, easily causes that volatile organic compounds is unqualified, in addition, the low weight of sound insulating pad, high intensity, every The performance indicators such as sound, sound absorption properties become bottleneck, restrict the development of sound insulating pad, and weight is big in the prior art, price is high, utilizes The low sound insulating pad of rate can no longer meet the growing demand of people, and that there is an urgent need to develop performances is more superior, has a variety of function The automobile antibacterial sound insulating pad of energy improves automobile interior decoration quality to increase the market competitiveness.
Summary of the invention
That the purpose of the present invention is to provide a kind of sound-absorbing effects is good, has no irritating odor, and volatile organic matter is few, has and removes Dirt purification, sterilizing moisture absorption, anti-mold effect, and it is able to satisfy automotive light weight technology, the automobile antibacterial sound insulating pad and its system that environmental protection requires Preparation Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of automobile antibacterial sound insulating pad by two layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: modified 10-20 parts of antibacterial and mouldproof fiber, low-melting point PET 5-10 parts of fiber, 5-10 parts of regenerated fiber, 4-6 parts of zein fiber, 2-4 parts of chitin fiber；The modified antibacterial and mouldproof fiber It is prepared by the component below according to parts by weight: 4-10 parts of allicin, 10-20 parts of lignin, 6-10 parts of bamboo fibre, the fruit of a cubeb litsea tree It is 6-10 parts oily, 50-100 parts of PET particle.
As a further solution of the present invention: the modified antibacterial and mouldproof fiber, by below according to the component system of parts by weight 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 particle.
As further scheme of the invention: the preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 10-20:5-10:5-10:4-6:2-4 obtains modified fibre after mixing, and modified fibre is sent by feeding cotton machine Carding machine is combed, and modified fibre net is formed；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；It will Modified fibre layer carries out pinprick reinforcement, acupuncture speed 400-800r/min on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then it carries out thrusting processing on semi-finished product and obtains automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
As further scheme of the invention: in the step 2), the diameter of modified fibre is 0.05mm.
As further scheme of the invention: the density of the elastic fibrous layer is 80-180g/m2, with a thickness of 0.8- 1.4mm, the density of modified fibre layer are 500-1400g/m2, with a thickness of 4.4-7.2mm.
Compared with prior art, the beneficial effects of the present invention are: the present invention improves automobile antibacterial sound insulating pad low weight, height The performance indicators such as intensity, sound-proofing, sound absorption properties can sufficiently 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 wave acoustic absorptivity, and pass through design flexibility fibre Layer and modified fibre layer are tieed up, so that automobile antibacterial sound insulating pad prepared by the present invention has restraining and sterilizing bacteria effect, purification and adjusts empty The effect of gaseity can effectively adsorb other bad smells and pollution factor in air, improve VOC and manage efficiency, and can discharge Anion promotes air quality in car body；Since modified material mostly uses natural reproducible ingredient, reduces and conventional petroleum is provided The dependence in source meets sustainable development requirement, has the characteristics that complete natural circulation type all and energy biological decomposition, more environmentally-friendly.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of automobile antibacterial sound insulating pad by two layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: 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 below according to weight The component of part is prepared: 4 parts of allicin, 10 parts of lignin, 6 parts of bamboo fibre, 6 parts of litsea citrate oil, 50 parts of PET particle.
The preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 10:5:5:4:2 obtains modified fibre after mixing, and 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, acupuncture speed 400-800r/min are carried out on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then it carries out thrusting processing on semi-finished product and obtains automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 2
A kind of automobile antibacterial sound insulating pad by two layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: 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 below according to weight The component of amount part is prepared: 10 parts of allicin, 20 parts of lignin, 10 parts of bamboo fibre, 10 parts of litsea citrate oil, PET particle 100 Part.
The preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 20:10:10:6:4 obtains modified fibre after mixing, and 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, acupuncture speed 400-800r/min are carried out on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 40000-50000psi, cutting air pressure is 0.6-0.8MPa；Then it carries out thrusting processing on semi-finished product and obtains automobile antibacterial Sound insulating pad finished product, finished product thickness 8-12mm.
Embodiment 3
A kind of automobile antibacterial sound insulating pad by two layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: 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 below according to weight The component of part is prepared: 7 parts of allicin, 15 parts of lignin, 8 parts of bamboo fibre, 8 parts of litsea citrate oil, 75 parts of PET particle.
The preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 15:7:8:5:3 obtains modified fibre after mixing, and 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, acupuncture speed 400-800r/min are carried out on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 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 layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: 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 below according to weight The component of part is prepared: 5 parts of allicin, 13 parts of lignin, 7 parts of bamboo fibre, 7 parts of litsea citrate oil, 60 parts of PET particle.
The preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 13:6:6:4:2 obtains modified fibre after mixing, and 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, acupuncture speed 400-800r/min are carried out on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 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 layers of elastic fibrous layer and is arranged in modified fine between two layers of elastic fibrous layer Dimension layer is prepared；The elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is made with the weight ratio of 0.95:1:1；Institute It states modified fibre layer to be prepared by the component below according to parts by weight: 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 below according to weight The component of part is prepared: 9 parts of allicin, 17 parts of lignin, 9 parts of bamboo fibre, 9 parts of litsea citrate oil, 90 parts of PET particle.
The preparation method of the automobile antibacterial sound insulating pad, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding with the weight ratio of 0.95:1:1 and mixes It closes, mixed fiber is combed by feeding cotton machine feeding carding machine, forms elastic webs；Elastic webs are conveyed to paving Cotton machine, laying form elastic fibrous layer；Elastic fibrous layer is subjected to pinprick reinforcement, acupuncture speed 400- on needing machine 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 distinguishes allicin, lignin, bamboo fibre It is pulverized, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.2) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula Granulation is blended in the litsea citrate oil of amount in double screw extruder, is made after master batch and modified antibacterial and mouldproof fiber is made according to a conventional method It is spare；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber= The weight ratio of 17:9:9:6:4 obtains modified fibre after mixing, and 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, acupuncture speed 400-800r/min are carried out on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastomer in the upper and lower faces of modified fibre layer Layer, then carries out pinprick reinforcement on needing machine, acupuncture speed 1000-1200r/min, obtain automobile antibacterial sound insulating pad half at Product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: Upper mold vacuumizes first, pumpdown time 1-20s, pressure 0.1-0.02MPa, and high temperature steaming is passed through while vacuumizing Vapour；Vacuum degree is kept, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, at normal temperature into Row cooling and shaping, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure For 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, the diameter of the modified fibre is 0.05mm, and the density of the elastic fibrous layer is 80-180g/ m2, with a thickness of 0.8-1.4mm, the density of modified fibre layer is 500-1400g/m2, with a thickness of 4.4-7.2mm.
Beneficial effects of the present invention are described further below with reference to experiment.
Sound insulation experiment is done using automobile antibacterial sound insulating pad prepared by embodiment 1-5, transaudient and sound insulation test is at 10 square metres Standard room in carry out, test result is as shown in table 1-2:
1 1-5 soundproof effect experimental result of the embodiment of the present invention of table
2 1-5 sound transmission loss experimental result of the embodiment of the present invention of table
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 The result that valence curve evaluation comes out is sound insulation class or weighted transmission loss, the value do not include wall area, sound receiving room's absorption, The amendments such as flanking transmission loss；Therefore sound insulation class is commonly used to the practical sound insulation effect between two adjacent rooms of description, hits Sound insulation test is tested according to American Society for Testing Materials ASTM49209 method, hits acoustical ratings according to American society Meeting ASTME989 standard class, II C higher grade, 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 Sound Level is high.
Antibacterial and mouldproof effect experiment is carried out using the automobile antibacterial sound insulating pad of embodiment 1-5 preparation, detection effect is as follows: making With six months or more, the antimicrobial efficiency to staphylococcus aureus was 95% or more, reached 93% to the antibiotic rate of Escherichia coli More than, mould proof grade is 0 grade, no Signs of Mould.Specifically, carrying out large intestine bar with automobile antibacterial sound insulating pad prepared by embodiment 3 The bacteriostatic experiment of bacterium, 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
By table 3 and table 4 it is found that automobile antibacterial sound insulating pad of the invention have to Escherichia coli and staphylococcus aureus it is aobvious The restraining and sterilizing bacteria effect of work, allicin of the restraining and sterilizing bacteria ingredient origin in modified fibre layer, allicin can kill germ, and And the mould function of coloured glaze base that mould can be destroyed including moulds such as aspergillus flavus, aspergillus niger, aspergillus fumigatus can be effectively killed, 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 that there is killing effect；The pH value of bamboo fibre is neutral, nontoxic, and suspendability is good, and absorption property is strong, and bulk density is light, oil absorbency 115%, there is excellent extensibility, there is that higher impact strength, tensile strength, tearing strength, light soft interior mill property is good, does pressure Spend good etc. high-quality effect；With unique pore structure, 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 on surface, and peculiar smell adsorbable, in decomposition air has and adjusts Wet, deodorization functions；Not only with it is non-ignitable, dehumidifying and lignin have adsorptivity and ion exchangeable, passed through using self component The method absorb, decomposed ionizes noxious material, and released mineral matter simultaneously balances minerals quantity, and lignin is lacked with antifatigue with resistance to Oxygen effect；Energy detoxicating and resolving a mass has therapeutic efficiency to contact dermatitis；Various chemical toxicants can be removed, and can be released to body The beneficial infrared ray of body；Zein fiber and chitin fiber have good drapability, slipping, and natural bacteriostatic has good Heat resistance and pleasant sensation effect, and its raw material be natural reproducible corn stigma and mushroom, reduce to conventional petroleum resource It relies on, meets sustainable development requirement, have the characteristics that complete natural circulation type all and energy biological decomposition.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective It makes a variety of changes.

Claims (4)

1. a kind of automobile antibacterial sound insulating pad, by two layers of elastic fibrous layer and the modified fibre being arranged between two layers of elastic fibrous layer Layer is prepared；It is characterized by: the elastic fibrous layer is according to low-melting fiber: cotton: PET fiber is with the weight of 0.95:1:1 Than being made；The modified fibre layer is prepared by the component below according to parts by weight: modified 10-20 parts of antibacterial and mouldproof fiber, 5-10 parts of low-melting point PET fiber, 5-10 parts of regenerated fiber, 4-6 parts of zein fiber, 2-4 parts of chitin fiber；The modified antibacterial Mould proof fiber is prepared by the component below according to parts by weight: 4-10 parts of allicin, 10-20 parts of lignin, bamboo fibre 6-10 Part, 6-10 parts of litsea citrate oil, 50-100 parts of PET particle；
Preparation method, comprising the following steps:
1) prepare elastic fibrous layer: by low-melting fiber: cotton: PET fiber carries out shredding mixing with the weight ratio of 0.95:1:1, mixes Fiber after conjunction is combed 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 subjected to pinprick reinforcement, acupuncture speed 400-500r/min on needing machine；
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 carries out allicin, lignin, bamboo fibre respectively It pulverizes, is uniformly mixed after crossing 800-1000 mesh screen；
2.1.2 PET particle) is weighed according to formula, the heating of PET particle is fused into molten mass；
2.1.3) by step 2.1.1) preparation ultra micro mixed-powder, step 2.1.2) in prepare molten mass and formula ratio Litsea citrate oil granulation is blended in double screw extruder, be made after master batch that modified antibacterial and mouldproof fiber is made according to a conventional method is standby With；
2.2) according to modified antibacterial and mouldproof fiber: low-melting point PET fiber: regenerated fiber: zein fiber: chitin fiber=10- The weight ratio of 20:5-10:5-10:4-6:2-4 obtains modified fibre after mixing, and modified fibre is sent into combing by feeding cotton machine Machine is combed, and modified fibre net is formed；Modified fibre net is conveyed to paving cotton machine, laying forms modified fibre layer；It will be modified Fibrous layer carries out pinprick reinforcement, acupuncture speed 400-800r/min on needing machine；
3) automobile antibacterial sound insulating pad semi-finished product are prepared: being respectively laid with one layer of elastic fibrous layer in the upper and lower faces of modified fibre layer, so Pinprick reinforcement is carried out on needing machine afterwards, acupuncture speed 1000-1200r/min obtains automobile antibacterial sound insulating pad semi-finished product；
4) the automobile antibacterial sound insulating pad semi-finished product after step 3) pinprick reinforcement are placed in molding die and are pressed and molded: first Upper mold vacuumizes, pumpdown time 1-20s, and pressure 0.1-0.02MPa is passed through high-temperature steam while vacuumizing；It protects Vacuum degree is held, continues to be passed through high-temperature steam progress hot briquetting, 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, molding time 40-60s；
5) cooling: will through step 4), treated that automobile antibacterial sound insulating pad semi-finished product are put into cooling jig, carry out at normal temperature cold But be formed, cooling time 30-45s；
6) step 5) automobile antibacterial sound insulating pad semi-finished product after cooling are cut using water-jet cutting machine, cutting pressure is 40000-50000psi, cutting air pressure are 0.6-0.8MPa；Then carry out thrusting on semi-finished product processing obtain automobile antibacterial every Sound pads finished product, finished product thickness 8-12mm.
2. automobile antibacterial sound insulating pad according to claim 1, which is characterized in that the modified antibacterial and mouldproof fiber, by with Under be prepared according to the component of parts by weight: 7 parts of allicin, 15 parts of lignin, 8 parts of bamboo fibre, 8 parts of litsea citrate oil, PET particle 75 parts.
3. automobile antibacterial sound insulating pad according to claim 1, which is characterized in that in the step 2, modified fibre it is straight Diameter is 0.05mm.
4. automobile antibacterial sound insulating pad according to claim 1, which is characterized in that the density of the elastic fibrous layer is 80- 180g/m2, with a thickness of 0.8-1.4mm, the density of modified fibre layer is 500-1400g/m2, with a thickness of 4.4-7.2mm.
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CN112590326A (en) * 2020-12-11 2021-04-02 无锡吉兴汽车声学部件科技有限公司 Antibacterial automobile silencing part and preparation method thereof
CN112625334A (en) * 2020-12-18 2021-04-09 常州迪声声学科技有限公司 Impact-resistant automobile front wall sound insulation pad and preparation method thereof
CN113954402B (en) * 2021-09-30 2023-02-03 江苏佰家丽新材料科技股份有限公司 Manufacturing method of antibacterial sound-absorbing board and antibacterial sound-absorbing board

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