CN105150637A - Spinning scrap rubber based fiber sound-absorbing composite adopting sandwich structure, and preparation method of composite - Google Patents
Spinning scrap rubber based fiber sound-absorbing composite adopting sandwich structure, and preparation method of composite Download PDFInfo
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- CN105150637A CN105150637A CN201510650342.2A CN201510650342A CN105150637A CN 105150637 A CN105150637 A CN 105150637A CN 201510650342 A CN201510650342 A CN 201510650342A CN 105150637 A CN105150637 A CN 105150637A
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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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber 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
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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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/10—Layered products comprising a layer of natural or synthetic rubber 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
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- 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
- B32B37/10—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
-
- 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
- B32B2262/0261—Polyamide fibres
Abstract
The invention discloses a spinning scrap rubber based fiber sound-absorbing composite adopting a sandwich structure, and a preparation method of the composite. The composite comprises spinning scrap rubber powder, a hindered phenol type antioxygen AO 2246 and single-hole nylon filaments. The preparation method comprises the steps of mixing, thermoforming and compounding. The spinning scrap rubber powder which has relatively strong polarity and adopts the three-dimensional network structure is used as the substrate, and the organic micromolecule AO 2246 with the polarity function is added, is formed into a scrap rubber based damping composite membrane through uniform mixing and thermoforming, and then is compounded with the single-hole nylon filaments to form the finished product. Spinning scrap rubber and the hindered phenol AO 2246 damping vibration attenuation composite are used as the clamping layers of the composite adopting the sandwich structure, on one hand, the damping property can be utilized to improve the sound absorption property of the composite, and on the other hand, the fiber layer can be effectively protected, so that the fiber-reinforced spinning scrap rubber sound-absorbing composite adopting the sandwich structure is endowed with the sound absorption property and the mechanical property needed in industrial application.
Description
Technical field
The invention belongs to sound-absorbing material technical field, particularly a kind of textile waste glue based fibre acoustic absorption composite material and manufacture method thereof relating to sandwich structure.
Background technology
In existing sound-absorbing material, acoustic energy is changed into heat energy by air and the friction of material and the viscous resistance effect of air and is consumed by sound wave by normal resonance mode and the porous mechanism of adopting.The former absorbs sound and mainly occurs in special frequency channel; The latter is general only has good sound absorbing capabilities at high band, and in order to make medium and low frequency section also have more excellent good performance, material must do very thick, and the mechanical property of this material is poor simultaneously, and a part of Chang Zuowei sound absorption structure uses.
In practical engineering application, people always wish material is more frivolous there is the prerequisite of suitable mechanical property simultaneously under, obtain good sound absorbing capabilities, to reduce workplace, the vibration of place of residence and noise pollution
Weave as the pillar people's livelihood industry of China, have a large amount of textile rubber rolls every year, cushion rubber is scrapped.Because it has three-dimensional net structure, be difficult to biodegradation.Random stacking, will become mosquito autoeciously; Although desulfurization effectively can remove three-dimensional net structure, obtain reclaimed rubber, easily form the discharge of useless cigarette, waste gas, these all will cause environmental pollution; In today that environment pollution control is more and more tighter, it is not a kind of good method of green process, will eliminate.From environmental angle, utilize the textile waste glue based fibre acoustic absorption composite material of its feature development sandwich structure will be the another Tiao Xin road of reasonable disposal and utilization to realize its functional regeneration.
Weaving scrap rubber has three-dimensional net structure, and this provides good mechanical property by for composite; Viscoplasticity as the weaving scrap rubber uniqueness containing polar functional group can form hydridization damp composite material with organic molecule, and this provides the foundation for developing damping composite membrane; Nylon single hole tubular filament, as the sandwich layer of composite, can increase on the one hand the mechanical property of composite, reach the function of enhancing, and the air in the hole of long filament is on the other hand brought in material, forms continuous print air layer, and this provides possibility for sound absorption.
Summary of the invention
Goal of the invention: in order to solve the deficiencies in the prior art, the invention provides a kind of textile waste glue based fibre acoustic absorption composite material and manufacture method thereof of sandwich structure.This composite has larger acoustic absorptivity in medium and low frequency section, and material has good mechanical property simultaneously.Preparation method is simple, has opened up the application of weaving scrap rubber in sound absorption field.
Technical scheme: a kind of textile waste glue based fibre acoustic absorption composite material of sandwich structure, described acoustic absorption composite material is by the sandwich layer of the auxiliary layer of single hole hollow nylon long filament as sandwich structure, and the damping vibration attenuation composite membrane that weaving scrap rubber and hindered phenol form is as holding sheet; Wherein in holding sheet composite: the technical recipe of weaving scrap rubber and hindered phenol is 70:30 by ratio of quality and the number of copies; Fiber quality content in the textile waste glue based fibre acoustic absorption composite material of sandwich structure is 5 ~ 30%.
As optimization: the damping vibration attenuation composite that weaving scrap rubber and hindered phenol as holding sheet form, described weaving scrap rubber is the rubber powder that cushion rubber, rubber roll textile enterprise scrapped directly is pulverized and obtained, its main component is: acrylonitrile-butadiene rubber (NBR) and polyvinyl chloride (PVC), its ratio is 100:80, in addition also has a small amount of reinforcing agent, plasticizer, stearic acid, pigment.
As optimization: the damping vibration attenuation composite that weaving scrap rubber and hindered phenol as holding sheet form, described hindered phenol is a kind of polarity organic molecule containing two hydroxyl, its chemistry by name 2,2 methylene-bis-(4-methyl-6-tert-butylphenol), can be abbreviated as AO2246, its chemical structural formula is as follows:
As optimization: as the single hole hollow nylon long filament of sandwich layer, it is characterized in that: specification is 2.8tex/12F.
A preparation method for the textile waste glue based fibre acoustic absorption composite material of described sandwich structure, comprises the steps:
(1) preparation of damping vibration attenuation composite membrane that forms of the weaving scrap rubber of holding sheet and hindered phenol
A, mixing:
Be add textile waste rubber powder between two rollers of 60 DEG C at roller temperature, laminate, about 20 minutes; Add AO2246 mixing, wherein the mass ratio of textile waste rubber powder and AO2246 is 70:30, mixing and reach even, total mixing time about 60 minutes, after mixing materials room temperature being cooled, obtains mixing thin slice with for subsequent use;
B, hot forming:
More biggerly than mould (the thick 1mm of mould) in mould inner chamber is laid in by being cut into before above-mentioned mixing thin slice, mould is clamped with steel plate up and down, and with the resistant to elevated temperatures adhesion-proof cloth of one deck between mould and steel plate, then add the resistant to elevated temperatures diaphragm of one deck outward again at adhesion-proof cloth; Steel plate moves into the vulcanizing press that temperature is 160 DEG C, unloading preheating 20 minutes, pressurization hot pressing 10 minutes; Take off steel plate, put into cold water rapidly, obtain the damping vibration attenuation composite that the weaving scrap rubber of not stripper member and hindered phenol form, with for subsequent use;
(2) preparation of Tynex
Utilize YG381 type yarn examining machine that single hole hollow nylon long filament is wound up into all outer the covering on the stainless steel blackboard of adhesion-proof cloth of positive and negative according to different mass fractions and (form stainless steel blackboard with stainless steel by the dimensioned of shaking blackboard, required quality is reached by continuous laying Binding change reeling density), the blackboard shaken is with for subsequent use;
(3) preparation of the compound of fibrage and damping vibration attenuation composite membrane
A, the high temperature resistant diaphragm of one deck will be spread above lower steel plate, repave the high temperature resistant adhesion-proof cloth of one deck, after the damping vibration attenuation composite membrane that the weaving scrap rubber of the damping vibration attenuation composite membrane then the weaving scrap rubber of not stripper member and hindered phenol formed successively, fiber blackboard, non-stripper member and hindered phenol form is placed on it, repave the high temperature resistant adhesion-proof cloth of one deck, one deck is high temperature resistant diaphragm, finally covers upper steel plate, it is moved vulcanizing press together, through unloading preheating, pressurization hot pressing; Take off steel plate, cut open fiber from blackboard, obtain the double layer material of two blocks of damping vibration attenuation composites and fiber, with for subsequent use;
B, the fibrous face coated with adhesive equably of two pieces of standby materials that a is obtained, until its evaporate into substantially tack-free after the fibrous face of two block of material is bonded together by fiber vertical angle, then utilize at normal temperatures weight pressurize put the textile waste glue based fibre acoustic absorption composite material that namely regular hour obtains sandwich structure.
As optimization: the high temperature resistant adhesion-proof cloth in described step is polytetrafluoroethylene (PTFE) high-temperature-resistant cloth, high temperature resistant antiadhesion barrier is high temperature resistant PET film.
As optimization: the unloading condition in described step (3) a can be: 160 ~ 175 DEG C of preheatings 10 ~ 30 minutes.
As optimization: the pressurized conditions in described step (3) a can be: temperature 160 ~ 175 DEG C, pressurize 20 ~ 40 minutes under the pressure of 15 ~ 18MPa.
As optimization: the pressurized conditions in described step (3) b is: pressurize 12 ~ 36 hours under the pressure of 1 ~ 3MPa.
As optimization: the adhesive in described step (3) b is happy safe 496.
Useful effect: the present invention selects a kind of with stronger polarity and the textile waste rubber powder (TWRP) with three-dimensional net structure is matrix, add polar functionalities Small molecular AO2246, adopt the composite membrane of the mass ratio blended formation hydridization effect of 70:30, in early-stage Study, the damping capacity of this ratio is best.Utilize composite membrane to clamp single hole hollow nylon fiber lay down lamination, the air in hollow can be introduced composite, obtain continuous print air layer, thus all can obtain good sound-absorbing performance in medium and low frequency section.
The invention process process is with simple, textile waste rubber powder used is that rubber roll, the cushion rubber that textile enterprise scraps directly is pulverized and obtained, and not only can not cause environmental pollution, and is that a kind of green functional utilizes, achieve and turn waste into wealth, meet the requirement of green production and sustainable development.The field such as traffic, household decoration can be widely used in, there is good economy and social effect.
Accompanying drawing explanation
Fig. 1 is acoustic absorptivity and the frequency curve chart of embodiment material;
Fig. 2 is the stress-strain curve of embodiment material.
Detailed description of the invention
To contribute to understanding the present invention by following embodiment, these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims equally and limited after the content of having read the present invention's instruction.
Embodiment 1:
By textile waste rubber powder and the blended composite membrane of AO2246 and single hole hollow nylon long filament laying compound and the composite of sandwich structure that jointly forms of the fibrage obtained under the textile waste glue based fibre acoustic absorption composite material of sandwich structure.The preparation process of composite is as follows:
(1) preparation of damping vibration attenuation composite membrane that forms of the weaving scrap rubber of holding sheet and hindered phenol
A, mixing
Be add textile waste rubber powder between two rollers of 60 DEG C at roller temperature, laminate, about 20 minutes; Add AO2246 mixing, wherein the mass ratio of textile waste rubber powder and AO2246 is 70:30, mixing and reach even, total mixing time about 60 minutes, after mixing materials room temperature being cooled, obtains mixing thin slice with for subsequent use;
B, hot forming
More biggerly than mould (the thick 1mm of mould) in mould inner chamber is laid in by being cut into before above-mentioned mixing thin slice, mould is clamped with steel plate up and down, and with the resistant to elevated temperatures adhesion-proof cloth of one deck between mould and steel plate, then add the resistant to elevated temperatures diaphragm of one deck outward again at adhesion-proof cloth; Steel plate moves into the vulcanizing press that temperature is 160 DEG C, unloading preheating 20 minutes, pressurization hot pressing 10 minutes; Take off steel plate, put into cold water rapidly, obtain the damping vibration attenuation composite that the weaving scrap rubber of not stripper member and hindered phenol form, with for subsequent use.
(2) preparation of Tynex
By the requirement of composite fiber content 5%, utilize YG381 type yarn examining machine that single hole hollow nylon winding filament (is formed stainless steel blackboard with stainless steel by the dimensioned of shaking blackboard to all outer the covering on the stainless steel blackboard of adhesion-proof cloth of positive and negative, required quality is reached by continuous laying Binding change reeling density), the blackboard shaken is with for subsequent use.
(3) preparation of the compound of fibrage and damping vibration attenuation composite membrane
A, the high temperature resistant diaphragm of one deck will be spread above lower steel plate, repave the high temperature resistant adhesion-proof cloth of one deck, after the damping vibration attenuation composite membrane that the weaving scrap rubber of the damping vibration attenuation composite membrane then the weaving scrap rubber of not stripper member and hindered phenol formed successively, fiber blackboard, non-stripper member and hindered phenol form is placed on it, repave the high temperature resistant adhesion-proof cloth of one deck, one deck is high temperature resistant diaphragm, finally cover upper steel plate, it is moved vulcanizing press together, preheating is unloaded 30 minutes, then hot pressing 40 minutes under 15MPa plus-pressure condition under 160 DEG C of conditions; Take off steel plate, cut open fiber from blackboard, obtain the double layer material of two blocks of damping vibration attenuation composites and fiber, with for subsequent use.
B, the fibrous face coated with adhesive equably of two pieces of standby materials that a is obtained, until its evaporate into substantially tack-free after the fibrous face of two block of material is bonded together by fiber vertical angle, plus-pressure is that 1MPa condition presses down and puts 36 hours at normal temperatures again, obtains the textile waste glue based fibre acoustic absorption composite material that thickness is about the sandwich structure of 2mm.
Embodiment 2:
(1) preparation of damping vibration attenuation composite membrane that forms of the weaving scrap rubber of holding sheet and hindered phenol
A, mixing
Be add textile waste rubber powder between two rollers of 60 DEG C at roller temperature, laminate, about 20 minutes; Add AO2246 mixing, wherein the mass ratio of textile waste rubber powder and AO2246 is 70:30, mixing and reach even, total mixing time about 60 minutes, after mixing materials room temperature being cooled, obtains mixing thin slice with for subsequent use;
B, hot forming
More biggerly than mould (the thick 1mm of mould) in mould inner chamber is laid in by being cut into before above-mentioned mixing thin slice, mould is clamped with steel plate up and down, and with the resistant to elevated temperatures adhesion-proof cloth of one deck between mould and steel plate, then add the resistant to elevated temperatures diaphragm of one deck outward again at adhesion-proof cloth; Steel plate moves into the vulcanizing press that temperature is 160 DEG C, unloading preheating 20 minutes, pressurization hot pressing 10 minutes; Take off steel plate, put into cold water rapidly, obtain the damping vibration attenuation composite that the weaving scrap rubber of not stripper member and hindered phenol form, with for subsequent use.
(2) preparation of Tynex
By the requirement of composite fiber content 15%, utilize YG381 type yarn examining machine that single hole hollow nylon winding filament (is formed stainless steel blackboard with stainless steel by the dimensioned of shaking blackboard to all outer the covering on the stainless steel blackboard of adhesion-proof cloth of positive and negative, required quality is reached by continuous laying Binding change reeling density), the blackboard shaken is with for subsequent use.
(3) preparation of the compound of fibrage and damping vibration attenuation composite membrane
A, the high temperature resistant diaphragm of one deck will be spread above lower steel plate, repave the high temperature resistant adhesion-proof cloth of one deck, after the damping vibration attenuation composite membrane that the weaving scrap rubber of the damping vibration attenuation composite membrane then the weaving scrap rubber of not stripper member and hindered phenol formed successively, fiber blackboard, non-stripper member and hindered phenol form is placed on it, repave the high temperature resistant adhesion-proof cloth of one deck, one deck is high temperature resistant diaphragm, finally cover upper steel plate, it is moved vulcanizing press together, preheating is unloaded 20 minutes, then hot pressing 30 minutes under 17MPa plus-pressure condition under 165 DEG C of conditions; Take off steel plate, cut open fiber from blackboard, obtain the double layer material of two blocks of damping vibration attenuation composites and fiber, with for subsequent use.
B, the fibrous face coated with adhesive equably of two pieces of standby materials that a is obtained, until its evaporate into substantially tack-free after the fibrous face of two block of material is bonded together by fiber vertical angle, plus-pressure is that 2MPa condition presses down and puts 24 hours at normal temperatures again, obtains the textile waste glue based fibre acoustic absorption composite material that thickness is about the sandwich structure of 2mm.
Embodiment 3:
(1) preparation of damping vibration attenuation composite membrane that forms of the weaving scrap rubber of holding sheet and hindered phenol
A, mixing
Be add textile waste rubber powder between two rollers of 60 DEG C at roller temperature, laminate, about 20 minutes; Add AO2246 mixing, wherein the mass ratio of textile waste rubber powder and AO2246 is 70:30, mixing and reach even, total mixing time about 60 minutes, after mixing materials room temperature being cooled, obtains mixing thin slice with for subsequent use;
B, hot forming
More biggerly than mould (the thick 1mm of mould) in mould inner chamber is laid in by being cut into before above-mentioned mixing thin slice, mould is clamped with steel plate up and down, and with the resistant to elevated temperatures adhesion-proof cloth of one deck between mould and steel plate, then add the resistant to elevated temperatures diaphragm of one deck outward again at adhesion-proof cloth; Steel plate moves into the vulcanizing press that temperature is 160 DEG C, unloading preheating 20 minutes, pressurization hot pressing 10 minutes; Take off steel plate, put into cold water rapidly, obtain the damping vibration attenuation composite that the weaving scrap rubber of not stripper member and hindered phenol form, with for subsequent use.
(2) preparation of Tynex
By the requirement of composite fiber content 30%, utilize YG381 type yarn examining machine that single hole hollow nylon winding filament (is formed stainless steel blackboard with stainless steel by the dimensioned of shaking blackboard to all outer the covering on the stainless steel blackboard of adhesion-proof cloth of positive and negative, required quality is reached by continuous laying Binding change reeling density), the blackboard shaken is with for subsequent use.
(3) preparation of the compound of fibrage and damping vibration attenuation composite membrane
A, the high temperature resistant diaphragm of one deck will be spread above lower steel plate, repave the high temperature resistant adhesion-proof cloth of one deck, after the damping vibration attenuation composite membrane that the weaving scrap rubber of the damping vibration attenuation composite membrane then the weaving scrap rubber of not stripper member and hindered phenol formed successively, fiber blackboard, non-stripper member and hindered phenol form is placed on it, repave the high temperature resistant adhesion-proof cloth of one deck, one deck is high temperature resistant diaphragm, finally cover upper steel plate, it is moved vulcanizing press together, preheating is unloaded 10 minutes, then hot pressing 20 minutes under 18MPa plus-pressure condition under 175 DEG C of conditions; Take off steel plate, cut open fiber from blackboard, obtain the double layer material of two blocks of damping vibration attenuation composites and fiber, with for subsequent use.
B, the fibrous face coated with adhesive equably of two pieces of standby materials that a is obtained, until its evaporate into substantially tack-free after the fibrous face of two block of material is bonded together by fiber vertical angle, plus-pressure is that 3MPa condition presses down and puts 12 hours at normal temperatures again, obtains the textile waste glue based fibre acoustic absorption composite material that thickness is about the sandwich structure of 2mm.
The SW230 impedance tube that the sound absorbing capabilities of the textile waste glue based fibre acoustic absorption composite material of sandwich structure prepared in embodiment adopts Beijing popularity company to produce, tests by GB/T18696.2-2002.Fig. 1 can be obtained;
The mechanical property of the textile waste glue based fibre acoustic absorption composite material of sandwich structure prepared in embodiment adopts the YG065 electronic fabric intensity meter of Laizhou, Shandong Electron equipment Co., Ltd, test with reference to GB/T528-98 [10], sample dog bone type I mould carries out cutting, length 115mm, width the widest part 25mm, narrowest place about 6.0mm, initial gage 25mm, rate of extension 500mm/min.Often organize sample test five times, can Fig. 2 be obtained after treatment.
As can be seen from Figure 1, when fiber content is 5%, rub and the viscous effect of air although produce between air aerial in also causing when sound wave impinges perpendicularly on composite and fiber inwall, because the continuous print air layer introduced in composite is less, so acoustically effective not obvious; With the increase of fiber content, the sound absorbing capabilities of composite obtains larger improvement, and expands to low frequency direction, when fiber content reaches 30%, the acoustic absorptivity of composite frequency range from 1250Hz to 2500Hz, all more than 0.2, has met the requirement of sound-absorbing material.When 2500Hz, the sound absorbing capabilities of composite is up to 0.366.
As seen from Figure 2: when fiber content changes to 30% from 5%, fracture strength brings up to 41.5MPa from 16MPa, then the change of fiber content does not almost affect Materials Fracture strain.What the increase of fracture strength illustrated fiber adds the object serving enhancing, effectively can improve the mechanical property requirements needed for engineer applied of the textile waste glue based fibre acoustic absorption composite material of sandwich structure, and breaking strain does not have much changes, this is mainly because composite membrane in composite and fiber are in stretching action process, because bi-material has huge difference on ess-strain, (composite membrane is the material with rubber property, its strain is large and stress is little, and fibrous material is just in time contrary with it), shown in composite in drawing process mainly fibrous material bear load, when fibrous fracture, composite membrane does not rupture, now stress declines rapidly, define the destruction of material, this is the reason of the breaking strain not great impact of fiber reason composite.
Claims (10)
1. the textile waste glue based fibre acoustic absorption composite material of a sandwich structure, it is characterized in that: described acoustic absorption composite material is by the sandwich layer of the auxiliary layer of single hole hollow nylon long filament as sandwich structure, and the damping vibration attenuation composite membrane that weaving scrap rubber and hindered phenol form is as holding sheet; Wherein in holding sheet composite: the technical recipe of weaving scrap rubber and hindered phenol is 70:30 by ratio of quality and the number of copies; Fiber quality content in the textile waste glue based fibre acoustic absorption composite material of sandwich structure is 5 ~ 30%.
2. the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 1, it is characterized in that: the damping vibration attenuation composite that weaving scrap rubber and hindered phenol as holding sheet form, described weaving scrap rubber is the rubber powder that cushion rubber, rubber roll textile enterprise scrapped directly is pulverized and obtained, its main component is: acrylonitrile-butadiene rubber (NBR) and polyvinyl chloride (PVC), its ratio is 100:80, in addition also has a small amount of reinforcing agent, plasticizer, stearic acid, pigment.
3. the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 1, it is characterized in that: the damping vibration attenuation composite that weaving scrap rubber and hindered phenol as holding sheet form, described hindered phenol is a kind of polarity organic molecule containing two hydroxyl, its chemistry by name 2,2 methylene-bis-(4-methyl-6-tert-butylphenol), can be abbreviated as AO2246, its chemical structural formula is as follows:
4. the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 1, is characterized in that: as the single hole hollow nylon long filament of sandwich layer, it is characterized in that: specification is 2.8tex/12F.
5. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 1, is characterized in that, comprise the steps:
(1) preparation of damping vibration attenuation composite membrane that forms of the weaving scrap rubber of holding sheet and hindered phenol
A, mixing:
Be add textile waste rubber powder between two rollers of 60 DEG C at roller temperature, laminate, about 20 minutes; Add AO2246 mixing, wherein the mass ratio of textile waste rubber powder and AO2246 is 70:30, mixing and reach even, total mixing time about 60 minutes, after mixing materials room temperature being cooled, obtains mixing thin slice with for subsequent use;
B, hot forming:
More biggerly than mould (the thick 1mm of mould) in mould inner chamber is laid in by being cut into before above-mentioned mixing thin slice, mould is clamped with steel plate up and down, and with the resistant to elevated temperatures adhesion-proof cloth of one deck between mould and steel plate, then add the resistant to elevated temperatures diaphragm of one deck outward again at adhesion-proof cloth; Steel plate moves into the vulcanizing press that temperature is 160 DEG C, unloading preheating 20 minutes, pressurization hot pressing 10 minutes; Take off steel plate, put into cold water rapidly, obtain the damping vibration attenuation composite that the weaving scrap rubber of not stripper member and hindered phenol form, with for subsequent use;
(2) preparation of Tynex
Utilize YG381 type yarn examining machine that single hole hollow nylon long filament is wound up into all outer the covering on the stainless steel blackboard of adhesion-proof cloth of positive and negative according to different mass fractions and (form stainless steel blackboard with stainless steel by the dimensioned of shaking blackboard, required quality is reached by continuous laying Binding change reeling density), the blackboard shaken is with for subsequent use;
(3) preparation of the compound of fibrage and damping vibration attenuation composite membrane
A, the high temperature resistant diaphragm of one deck will be spread above lower steel plate, repave the high temperature resistant adhesion-proof cloth of one deck, after the damping vibration attenuation composite membrane that the weaving scrap rubber of the damping vibration attenuation composite membrane then the weaving scrap rubber of not stripper member and hindered phenol formed successively, fiber blackboard, non-stripper member and hindered phenol form is placed on it, repave the high temperature resistant adhesion-proof cloth of one deck, one deck is high temperature resistant diaphragm, finally covers upper steel plate, it is moved vulcanizing press together, through unloading preheating, pressurization hot pressing; Take off steel plate, cut open fiber from blackboard, obtain the double layer material of two blocks of damping vibration attenuation composites and fiber, with for subsequent use;
B, the fibrous face coated with adhesive equably of two pieces of standby materials that a is obtained, until its evaporate into substantially tack-free after the fibrous face of two block of material is bonded together by fiber vertical angle, then utilize at normal temperatures weight pressurize put the textile waste glue based fibre acoustic absorption composite material that namely regular hour obtains sandwich structure.
6. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 5, it is characterized in that: the high temperature resistant adhesion-proof cloth in described step is polytetrafluoroethylene (PTFE) high-temperature-resistant cloth, high temperature resistant antiadhesion barrier is high temperature resistant PET film.
7. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 5, is characterized in that: the unloading condition in described step (3) a can be: 160 ~ 175 DEG C of preheatings 10 ~ 30 minutes.
8. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 5, it is characterized in that: the pressurized conditions in described step (3) a can be: temperature 160 ~ 175 DEG C, pressurize 20 ~ 40 minutes under the pressure of 15 ~ 18MPa.
9. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 5, is characterized in that: the pressurized conditions in described step (3) b is: pressurize 12 ~ 36 hours under the pressure of 1 ~ 3MPa.
10. the preparation method of the textile waste glue based fibre acoustic absorption composite material of sandwich structure according to claim 5, is characterized in that: the adhesive in described step (3) b is happy safe 496.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108621974A (en) * | 2017-03-17 | 2018-10-09 | 科德宝两合公司 | Absorb sound composite material for weaving |
Citations (5)
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| CN104123929A (en) * | 2014-07-03 | 2014-10-29 | 东华大学 | Low-frequency sound-absorbing material in sandwich structure lamination and manufacturing method thereof |
| CN104710659A (en) * | 2015-04-01 | 2015-06-17 | 江苏工程职业技术学院 | Synergic-hybridization textile waste rubber-base damping vibration-reduction composite material and manufacturing method thereof |
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| EP1013414A2 (en) * | 1998-12-21 | 2000-06-28 | Prince Technology Corporation | Encapsulated self adhering acoustic mat for sandwich used in vehicle interior systems |
| CN102850609A (en) * | 2012-09-26 | 2013-01-02 | 东华大学 | Sound adsorption and damping vibration attenuation composite material using waste textile rubber and preparation method thereof |
| CN103112175A (en) * | 2013-02-01 | 2013-05-22 | 东华大学 | Continuous fiber self-reinforcing gradient lamination board and preparation method thereof |
| CN104123929A (en) * | 2014-07-03 | 2014-10-29 | 东华大学 | Low-frequency sound-absorbing material in sandwich structure lamination and manufacturing method thereof |
| CN104710659A (en) * | 2015-04-01 | 2015-06-17 | 江苏工程职业技术学院 | Synergic-hybridization textile waste rubber-base damping vibration-reduction composite material and manufacturing method thereof |
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| CN108621974A (en) * | 2017-03-17 | 2018-10-09 | 科德宝两合公司 | Absorb sound composite material for weaving |
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