CN106739313A - A kind of composite material thermal insulation hush pipe and preparation method thereof - Google Patents

A kind of composite material thermal insulation hush pipe and preparation method thereof Download PDF

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Publication number
CN106739313A
CN106739313A CN201611206372.5A CN201611206372A CN106739313A CN 106739313 A CN106739313 A CN 106739313A CN 201611206372 A CN201611206372 A CN 201611206372A CN 106739313 A CN106739313 A CN 106739313A
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China
Prior art keywords
thermal insulation
composite material
leftover pieces
pipe
acoustical cotton
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CN201611206372.5A
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Chinese (zh)
Inventor
蓝国勇
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Guangxi Defute Technology Co Ltd
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Guangxi Defute Technology Co Ltd
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Priority to CN201611206372.5A priority Critical patent/CN106739313A/en
Publication of CN106739313A publication Critical patent/CN106739313A/en
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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
    • B32B5/22—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising 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
    • 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
    • B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • 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
    • B32B2262/0253—Polyolefin 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass 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
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—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
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

The present invention relates to a kind of composite material thermal insulation hush pipe and preparation method thereof, including pipe, the outer surface of the pipe is provided with noise reduction heat insulation layer, and the pipe is made up of the leftover pieces and short glass fiber of acoustical cotton；The quality of the short glass fiber is the 10~35% of the leftover pieces quality of acoustical cotton.Compared with the prior art, the present invention can realize twice laid, reduce environmental pollution；The effect of the composite material tube of preparation significantly thermal insulation noise reduction.

Description

A kind of composite material thermal insulation hush pipe and preparation method thereof
Technical field
The present invention relates to quieter material technical field, more particularly to a kind of composite material thermal insulation hush pipe and its preparation side Method.
Background technology
At present, PET (polyethylene terephthalate)/PP (polypropylene) double-component acoustical cottons are in auto sound, noise reduction Field is widely applied, and is greatly improved vehicle NVH performances.However, PET polyester fibers are chemical synthetic fiber fusing point (more than 250 DEG C) high, degraded are difficult.Substantial amounts of corner is produced during PET/PP double-components acoustical cotton production automobile product Material, how effectively to utilize is current difficult point.
The content of the invention
It is an object of the invention to provide a kind of composite material thermal insulation hush pipe and preparation method thereof, technology to be solved is asked Topic is：Substantial amounts of leftover pieces are produced during PET/PP double-components acoustical cotton production automobile product cannot be utilized.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of composite material thermal insulation hush pipe, including pipe, The outer surface of the pipe is provided with noise reduction heat insulation layer, and the pipe is made up of the leftover pieces and short glass fiber of acoustical cotton； The quality of the short glass fiber is the 10~35% of the leftover pieces quality of acoustical cotton.
The beneficial effects of the invention are as follows：Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, dropped Low environment pollutes；The composite material tube for making full use of the hollow characteristic of PET to prepare possesses the effect of significantly thermal insulation noise reduction.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the leftover pieces of the acoustical cotton are made up of PET and PP fibers.
Beneficial effect using above-mentioned further scheme is：Using the hollow characteristic of PET in leftover pieces, thermal insulation is reached The effect of noise reduction.
Further, the quality of the short glass fiber is the 10~35% of PET and PP total fiber mass.
Beneficial effect using above-mentioned further scheme is：Twice laid is reached, environmental pollution, lifting noise reduction effect is reduced Really.
Further, the noise reduction heat insulation layer is made up of PET and PP fibers.
Beneficial effect using above-mentioned further scheme is：Using the hollow characteristic of PET in leftover pieces, thermal insulation is reached The effect of noise reduction.
Further, the fiber in the leftover pieces of the acoustical cotton is doughnut.
Beneficial effect using above-mentioned further scheme is：The effect of the adiabatic noise reduction of lifting.
Further, the noise reduction heat insulation layer is made up of PET/PP leftover pieces.
Beneficial effect using above-mentioned further scheme is：The effect of the adiabatic noise reduction of lifting.
Another technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of preparation of composite material thermal insulation hush pipe Method, comprises the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton, and the fiber in acoustical cotton is doughnut；To sound-absorbing Short glass fiber is added in the leftover pieces of cotton；
Step S2. will add the melting at a temperature of 240~260 DEG C of the acoustical cotton leftover pieces after short glass fiber to mix equal It is even, well mixed melts are extruded into obtain pipe by plastic extruder；
Step S3. will drop to less than 100 DEG C at a temperature of pipe, PET/PP leftover pieces are laid on pipe surface, 150~ Toasted 10~20 minutes at a temperature of 180 DEG C, the PP fiber fusions in PET/PP leftover pieces are fixed, it is exhausted to form noise reduction on pipe surface Thermosphere, pipe and noise reduction heat insulation layer constitute composite material thermal insulation hush pipe.
The beneficial effects of the invention are as follows：Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, dropped Low environment pollutes；The composite material tube for making full use of the hollow characteristic of PET to prepare possesses the effect of significantly thermal insulation noise reduction.
Further, the acoustical cotton is made up of PET and PP fibers.
Beneficial effect using above-mentioned further scheme is：Using the hollow characteristic of PET in leftover pieces, thermal insulation is reached The effect of noise reduction.
Further, the PET in the acoustical cotton is doughnut.
Beneficial effect using above-mentioned further scheme is：Using the hollow characteristic of PET in leftover pieces, thermal insulation is reached The effect of noise reduction.
Further, in step S1, it is the 10~35% of acoustical cotton leftover pieces to add the quality of short glass fiber.
Beneficial effect using above-mentioned further scheme is：Twice laid is reached, environmental pollution, lifting noise reduction effect is reduced Really.
Brief description of the drawings
Fig. 1 is a kind of structural representation of composite material thermal insulation hush pipe of the invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, pipe, 2, noise reduction heat insulation layer.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and It is non-for limiting the scope of the present invention.
Embodiment 1：
As shown in figure 1, a kind of composite material thermal insulation hush pipe, including pipe 1, the outer surface of the pipe 1 is provided with and disappears Sound heat insulation layer 2, the pipe 1 is made up of the leftover pieces and short glass fiber of acoustical cotton；The quality of the short glass fiber It is the 10~35% of the leftover pieces quality of acoustical cotton；The noise reduction heat insulation layer 2 is made up of PET and PP fibers；
The internal diameter of pipe 1 is 100mm, and the thickness of pipe 1 is 8mm, and the thickness of noise reduction heat insulation layer 2 is 12mm.
In above-described embodiment, using the hollow characteristic of PET in leftover pieces, the leftover pieces of acoustical cotton are carried out into sound insulation material Material manufacture, reaches twice laid, reduces environmental pollution；The composite material tube for making full use of the hollow characteristic of PET to prepare is gathered around There is the effect of significantly thermal insulation noise reduction.
Further, the fiber in the leftover pieces of the acoustical cotton is doughnut；The effect of the adiabatic noise reduction of lifting.
Further, the noise reduction heat insulation layer 2 is made up of PET/PP leftover pieces；The effect of the adiabatic noise reduction of lifting.
Embodiment 2：
A kind of preparation method of composite material thermal insulation hush pipe, comprises the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton, and the fiber in acoustical cotton is doughnut；To sound-absorbing Short glass fiber is added in the leftover pieces of cotton；
Step S2. will add the melting at a temperature of 240 DEG C of the acoustical cotton leftover pieces after short glass fiber to be well mixed, will Well mixed melts extrude to obtain pipe 1 by plastic extruder；
Step S3. will drop to 90 DEG C at a temperature of pipe 1, and the thick PET/PP leftover pieces of 12mm are laid on the surface of pipe 1, Toasted 11 minutes at a temperature of 175 DEG C, the PP fiber fusions in PET/PP leftover pieces are fixed, it is adiabatic to form noise reduction on the surface of pipe 1 Layer 2, pipe 1 and noise reduction heat insulation layer 2 constitute composite material thermal insulation hush pipe.
The internal diameter of composite material thermal insulation hush pipe is 100mm, and the thickness of pipe 1 is 8mm, and the thickness of noise reduction heat insulation layer 2 is 12mm。
Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, environmental pollution is reduced；Make full use of Composite material tube prepared by the hollow characteristic of PET possesses the effect of significantly thermal insulation noise reduction.
In above-described embodiment, the acoustical cotton is made up of PET and PP fibers；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, the PET in the acoustical cotton is doughnut；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, in step S1, it is the 15% of acoustical cotton leftover pieces to add the quality of short glass fiber；Reach Twice laid, reduces environmental pollution, lifts erasure effect.
Embodiment 3：
A kind of preparation method of composite material thermal insulation hush pipe, comprises the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton, and the fiber in acoustical cotton is doughnut；To sound-absorbing Short glass fiber is added in the leftover pieces of cotton；
Step S2. will add the melting at a temperature of 240 DEG C of the acoustical cotton leftover pieces after short glass fiber to be well mixed, will Well mixed melts extrude to obtain pipe 1 by plastic extruder；
Step S3. will drop to 90 DEG C at a temperature of pipe 1, and the thick PET/PP leftover pieces of 12mm are laid on the surface of pipe 1, Toasted 20 minutes at a temperature of 150 DEG C, the PP fiber fusions in PET/PP leftover pieces are fixed, it is adiabatic to form noise reduction on the surface of pipe 1 Layer 2, pipe 1 and noise reduction heat insulation layer 2 constitute composite material thermal insulation hush pipe.
The internal diameter of composite material thermal insulation hush pipe is 100mm, and the thickness of pipe 1 is 8mm, and the thickness of noise reduction heat insulation layer 2 is 12mm。
Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, environmental pollution is reduced；Make full use of Composite material tube prepared by the hollow characteristic of PET possesses the effect of significantly thermal insulation noise reduction.
In above-described embodiment, the acoustical cotton is made up of PET and PP fibers；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, the PET in the acoustical cotton is doughnut；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, in step S1, it is the 10% of acoustical cotton leftover pieces to add the quality of short glass fiber；Reach Twice laid, reduces environmental pollution, lifts erasure effect.
Embodiment 4：
A kind of preparation method of composite material thermal insulation hush pipe, comprises the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton, and the fiber in acoustical cotton is doughnut；To sound-absorbing Short glass fiber is added in the leftover pieces of cotton；
Step S2. will add the melting at a temperature of 260 DEG C of the acoustical cotton leftover pieces after short glass fiber to be well mixed, will Well mixed melts extrude to obtain pipe 1 by plastic extruder；
Step S3. will drop to 90 DEG C at a temperature of pipe 1, and the thick PET/PP leftover pieces of 15mm are laid on the surface of pipe 1, Toasted 10 minutes at a temperature of 180 DEG C, the PP fiber fusions in PET/PP leftover pieces are fixed, it is adiabatic to form noise reduction on the surface of pipe 1 Layer 2, pipe 1 and noise reduction heat insulation layer 2 constitute composite material thermal insulation hush pipe.
The internal diameter of composite material thermal insulation hush pipe is 100mm, and the thickness of pipe 1 is 8mm, and the thickness of noise reduction heat insulation layer 2 is 15mm。
Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, environmental pollution is reduced；Make full use of Composite material tube prepared by the hollow characteristic of PET possesses the effect of significantly thermal insulation noise reduction.
In above-described embodiment, the acoustical cotton is made up of PET and PP fibers；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, the PET in the acoustical cotton is doughnut；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, in step S1, it is the 35% of acoustical cotton leftover pieces to add the quality of short glass fiber；Reach Twice laid, reduces environmental pollution, lifts erasure effect.
Embodiment 5：
A kind of preparation method of composite material thermal insulation hush pipe, comprises the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton, and the fiber in acoustical cotton is doughnut；To sound-absorbing Short glass fiber is added in the leftover pieces of cotton；
Step S2. will add the melting at a temperature of 260 DEG C of the acoustical cotton leftover pieces after short glass fiber to be well mixed, will Well mixed melts extrude to obtain pipe 1 by plastic extruder；
Step S3. will drop to 90 DEG C at a temperature of pipe 1, and the thick PET/PP leftover pieces of 15mm are laid on the surface of pipe 1, Toasted 15 minutes at a temperature of 180 DEG C, the PP fiber fusions in PET/PP leftover pieces are fixed, it is adiabatic to form noise reduction on the surface of pipe 1 Layer 2, pipe 1 and noise reduction heat insulation layer 2 constitute composite material thermal insulation hush pipe.
The internal diameter of composite material thermal insulation hush pipe is 150mm, and the thickness of pipe 1 is 10mm, and the thickness of noise reduction heat insulation layer 2 is 15mm。
Acoustic material manufacture is carried out using the leftover pieces of acoustical cotton, twice laid is reached, environmental pollution is reduced；Make full use of Composite material tube prepared by the hollow characteristic of PET possesses the effect of significantly thermal insulation noise reduction.
In above-described embodiment, the acoustical cotton is made up of PET and PP fibers；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, the PET in the acoustical cotton is doughnut；It is hollow using PET in leftover pieces Characteristic, reach the effect of adiabatic noise reduction.
In above-described embodiment, in step S1, it is the 25% of acoustical cotton leftover pieces to add the quality of short glass fiber；Reach Twice laid, reduces environmental pollution, lifts erasure effect.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (10)

1. a kind of composite material thermal insulation hush pipe, including pipe (1), it is characterised in that：The outer surface of the pipe (1) is provided with Noise reduction heat insulation layer (2), the pipe (1) is made up of the leftover pieces and short glass fiber of acoustical cotton；The short glass fiber Quality for acoustical cotton leftover pieces quality 10~35%.
2. a kind of composite material thermal insulation hush pipe according to claim 1, it is characterised in that：The leftover pieces of the acoustical cotton by PET and PP fibers are made.
3. a kind of composite material thermal insulation hush pipe according to claim 2, it is characterised in that：The matter of the short glass fiber Measure 10~35% for PET and PP total fiber mass.
4. a kind of composite material thermal insulation hush pipe according to claim 1, it is characterised in that：The noise reduction heat insulation layer (2) by PET and PP fibers are made.
5. a kind of composite material thermal insulation hush pipe according to any one of Claims 1-4, it is characterised in that：The acoustical cotton Leftover pieces in fiber be doughnut.
6. a kind of composite material thermal insulation hush pipe according to any one of Claims 1-4, it is characterised in that：The noise reduction is exhausted Thermosphere is made up of PET/PP leftover pieces.
7. a kind of preparation method of composite material thermal insulation hush pipe, it is characterised in that：Comprise the following steps：
Step S1. takes the leftover pieces and short glass fiber of acoustical cotton；To adding short glass fiber in the leftover pieces of acoustical cotton；
Step S2. will add the melting at a temperature of 240~260 DEG C of the acoustical cotton leftover pieces after short glass fiber to be well mixed, Well mixed melts are extruded into obtain pipe (1) by plastic extruder；
Step S3. will drop to less than 100 DEG C at a temperature of pipe (1), and noise reduction thermal insulation layer material is laid on pipe (1) surface, Toasted 10~20 minutes at a temperature of 150~180 DEG C, solidified after the dimension fusing in noise reduction thermal insulation layer material, in pipe (1) table Face forms noise reduction heat insulation layer (2), and pipe (1) and noise reduction heat insulation layer (2) constitute composite material thermal insulation hush pipe.
8. a kind of preparation method of composite material thermal insulation hush pipe according to claim 7, it is characterised in that：The acoustical cotton It is made up of PET and PP fibers.
9. a kind of preparation method of composite material thermal insulation hush pipe according to claim 8, it is characterised in that：The acoustical cotton In PET be doughnut.
10. a kind of preparation method of composite material thermal insulation hush pipe according to any one of claim 7 to 9, it is characterised in that： In step S1, it is the 10~35% of acoustical cotton leftover pieces to add the quality of short glass fiber.
CN201611206372.5A 2016-12-23 2016-12-23 A kind of composite material thermal insulation hush pipe and preparation method thereof Pending CN106739313A (en)

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CN203868540U (en) * 2014-05-29 2014-10-08 世纪良基投资集团有限公司 Reinforcing type silencing air duct
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CN1860325A (en) * 2004-12-02 2006-11-08 Cci株式会社 Soundproof coating material and soundproof drain pipe
CN101132953A (en) * 2005-02-23 2008-02-27 开若姆科技株式会社 The member for headliner on motor vehicles of multilayer structure
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Application publication date: 20170531