CN102850813A - Preparation method for composite sound absorption material - Google Patents

Preparation method for composite sound absorption material Download PDF

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Publication number
CN102850813A
CN102850813A CN2012103154178A CN201210315417A CN102850813A CN 102850813 A CN102850813 A CN 102850813A CN 2012103154178 A CN2012103154178 A CN 2012103154178A CN 201210315417 A CN201210315417 A CN 201210315417A CN 102850813 A CN102850813 A CN 102850813A
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Prior art keywords
parts
preparation
composite sound
absorbing material
water
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CN2012103154178A
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CN102850813B (en
Inventor
计慷
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SUZHOU DELAIER BUILDING MATERIALS SCIENCE AND TECHNOLOGY CO LTD
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SUZHOU DELAIER BUILDING MATERIALS SCIENCE AND TECHNOLOGY CO LTD
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    • 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
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

Abstract

The invention provides a preparation method for a composite sound absorption material, which belongs to the technical field of building materials. The material is prepared from the following raw materials by weight: 10 to 20 parts of rubber particles, 2 to 3 parts of paraffin oil, 3 to 5 parts of heavy calcium carbonate, 1 to 2 parts of dicumyl peroxide, 3 to 5 parts of talc powder, 3 to 5 parts of stearic acid, 1 part of a silane coupling agent, 1 part of melamine, 2 to 3 parts of pentaerythritol, 15 to 30 parts of plant fibers, 5 to 8 parts of clay, 5 to 8 parts of bentonite, 2 to 4 parts of magnesia, 2 to 4 parts of polyimide fibers, 1 part of carbon fibers, 3 to 6 parts of perlite, 3 to 5 parts of polyurethane foam, 2 to 3 parts of silica sol, 5 to 10 parts of cellulose, 10 to 20 parts of silicate cement and 10 to 20 parts of water. The composite sound absorption material provided by the invention has good sound absorption and sound insulation effects.

Description

A kind of preparation method of composite sound-absorbing material
Technical field
The invention provides a kind of preparation method of composite sound-absorbing material, belong to building material technical field.
Background technology
Along with the development of the modern industry, environmental pollution is also along with generation, and noise pollution is exactly a kind of of environmental pollution, has become the greatly harm to the mankind.Noise pollution and water pollute, topsoil is regarded as three main Environmental Problems in the world wide.Common people can have an opportunity to be exposed in the various noises in various degree in daily life, and noise not only can affect hearing, also can affect cardiovascular health, the quality of sleep, even fetal development etc.
Sound wave is in communication process, if run into barrier, a part can be reflected, and another part can be absorbed, and improves material of construction to the specific absorption of sound wave, and it is favourable polluting for noise reduction.Common sound absorption building materials include: sawdust-board, concrete slab, pearlite slab etc., but this class sound absorption building board has various deficiencies: for example, sound absorbing coefficient is low, poor corrosion resistance, cost are high.
Summary of the invention
For above commentary to prior art, technical problem to be solved by this invention is: the acoustically effective of common sound-absorbing material is bad.Adopt following technical scheme:
A kind of preparation method of composite sound-absorbing material is to make by the raw material of following weight part: 10～20 parts of rubber grains, 2～3 parts of Valelinum Liquidums, 3～5 parts of water-ground limestones, 1～2 part of dicumyl peroxide, 3～5 parts of talcum powder, 3～5 parts of stearic acid, 1 part of silane coupling agent, 1 part of trimeric cyanamide, 2～3 parts of tetramethylolmethanes, 15～30 parts on vegetable fibre, 5～8 parts of clays, 5～8 parts of wilkinites, 2～4 parts in magnesium oxide, 2～4 parts of polyimide fibers, 1 part on carbon fiber, 3～6 parts of perlites, 3～5 parts of urethane foams, 2～3 parts of silicon sol, 5～10 parts of Mierocrystalline celluloses, 10～20 parts of silicate cements, 10～20 parts in water.
The preparation method comprises the steps:
S1: get rubber grain, Valelinum Liquidum, water-ground limestone, dicumyl peroxide, talcum powder, stearic acid, silane coupling agent, trimeric cyanamide, tetramethylolmethane, under 90～100 ℃ temperature, mix;
S2: with step S1 gained mixture, send in the forcing machine, under 120～130 ℃ of temperature, extrude; Granulation;
S3: with S2 gained particle and vegetable fibre, clay, wilkinite, magnesium oxide, polyimide fiber, carbon fiber, perlite, urethane foam, silicon sol, Mierocrystalline cellulose, mix;
S4: add cement and water in S3 gained mixture, stir, pour in the mould, curing molding gets finished product.
The material of described rubber grain is preferably a kind of in terpolymer EP rubber, the styrene-butadiene rubber(SBR).
Described vegetable fibre is preferably straw or stalk.
Described Mierocrystalline cellulose is preferably a kind of in methylcellulose gum, Natvosol, the hydroxypropylcellulose.
The size of granulation is preferably 1～2mm among the described S4.
Adopted vegetable fibre in the composite sound-absorbing material provided by the invention, its voidage is good, help to absorb sound wave, urethane foam has certain sound insulation property, and make further sound-absorbing material keep having netted interconnective space structure by polyimide fiber and Mierocrystalline cellulose, make rubber grain, talcum powder, etc. can embed preferably wherein, strengthen the performance of sound absorption.So the sound absorption of composite sound-absorbing material provided by the invention, defening effect are good.
Embodiment
Take by weighing each component raw material by the weight proportion in the table 1.
The weight proportion of table 1 embodiment 1～embodiment 3
Figure BDA00002079890500021
Figure BDA00002079890500031
The material of described rubber grain is styrene-butadiene rubber(SBR).
Described vegetable fibre is stalk.
Described Mierocrystalline cellulose is hydroxypropylcellulose.
Embodiment 1
The preparation method is:
S1: get rubber grain, Valelinum Liquidum, water-ground limestone, dicumyl peroxide, talcum powder, stearic acid, silane coupling agent, trimeric cyanamide, tetramethylolmethane, under 90 ℃ temperature, mix;
S2: with step S1 gained mixture, send in the forcing machine, under 120 ℃ of temperature, extrude; Granulation;
S3: with S2 gained particle and vegetable fibre, clay, wilkinite, magnesium oxide, polyimide fiber, carbon fiber, perlite, urethane foam, silicon sol, Mierocrystalline cellulose, mix;
S4: add cement and water in S3 gained mixture, stir, pour in the mould, curing molding gets finished product.
The size of granulation is preferably 1～2mm among the described S4.
Embodiment 2
The difference of preparation method and embodiment 1 is: the temperature in the S1 step is 95 ℃, and the temperature in the S2 step is 125 ℃.
Embodiment 3
The difference of preparation method and embodiment 1 is: the temperature in the S1 step is 100 ℃, and the temperature in the S2 step is 130 ℃.
Performance test
The sound-absorbing material of above embodiment gained is carried out dependence test, and with disclosed sound-absorbing material among the patent CN 01107650 in contrast.
Table 2 embodiment 1～embodiment 3 performance test data
Embodiment 1 Embodiment 2 Embodiment 3 Reference examples
Density g/cm 3 36 35 37 40
Thermal resistance coefficient kcal/mh ℃ 0.07 0.08 0.07 0.18
Sound absorption coefficient NRC 0.85 0.84 0.85 0.58
Oise insulation factor dB 19.2 19.3 19.2 10.2
Above sound absorption coefficient detects according to GBT23451-2009;
The oise insulation factor test condition is sample thickness 3.5cm, frequency of source 300Hz., can find out that the sound-absorbing material in the present embodiment absorbs sound, defening effect is good.

Claims (5)

1. the preparation method of a composite sound-absorbing material is to make by the raw material of following weight part: 10～20 parts of rubber grains, 2～3 parts of Valelinum Liquidums, 3～5 parts of water-ground limestones, 1～2 part of dicumyl peroxide, 3～5 parts of talcum powder, 3～5 parts of stearic acid, 1 part of silane coupling agent, 1 part of trimeric cyanamide, 2～3 parts of tetramethylolmethanes, 15～30 parts on vegetable fibre, 5～8 parts of clays, 5～8 parts of wilkinites, 2～4 parts in magnesium oxide, 2～4 parts of polyimide fibers, 1 part on carbon fiber, 3～6 parts of perlites, 3～5 parts of urethane foams, 2～3 parts of silicon sol, 5～10 parts of Mierocrystalline celluloses, 10～20 parts of silicate cements, 10～20 parts in water;
Preparation process is:
S1: get rubber grain, Valelinum Liquidum, water-ground limestone, dicumyl peroxide, talcum powder, stearic acid, silane coupling agent, trimeric cyanamide, tetramethylolmethane, under 90～100 ℃ temperature, mix;
S2: with step S1 gained mixture, send in the forcing machine, under 120～130 ℃ of temperature, extrude; Granulation;
S3: with S2 gained particle and vegetable fibre, clay, wilkinite, magnesium oxide, polyimide fiber, carbon fiber, perlite, urethane foam, silicon sol, Mierocrystalline cellulose, mix;
S4: add cement and water in S3 gained mixture, stir, pour in the mould, curing molding gets finished product.
2. the preparation method of composite sound-absorbing material according to claim 1, it is characterized in that: the material of described rubber grain is in terpolymer EP rubber or the styrene-butadiene rubber(SBR).
3. the preparation method of composite sound-absorbing material according to claim 1, it is characterized in that: described vegetable fibre is straw or stalk.
4. the preparation method of composite sound-absorbing material according to claim 1 is characterized in that: described Mierocrystalline cellulose is a kind of in methylcellulose gum, Natvosol, the hydroxypropylcellulose.
5. the preparation method of composite sound-absorbing material according to claim 1, it is characterized in that: the size of granulation is 1～2mm among the described step S4.
CN201210315417.8A 2012-08-30 2012-08-30 Preparation method for composite sound absorption material Active CN102850813B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103130478A (en) * 2013-02-28 2013-06-05 四川省长源建筑工程有限责任公司 Environmentally-friendly building heat insulation material
CN103145391A (en) * 2013-04-03 2013-06-12 北方工业大学 Environment-friendly building material
CN105153472A (en) * 2015-09-17 2015-12-16 李�杰 Light-weight sound-absorbing board and preparation method thereof
CN105175841A (en) * 2014-08-19 2015-12-23 南京林业大学 Sound absorbing material based on waste rubber powder and manufacturing method thereof
CN106750672A (en) * 2016-12-16 2017-05-31 吴中区穹窿山天仲高分子材料技术研究所 A kind of new sound-absorbing material
CN106905777A (en) * 2017-02-24 2017-06-30 郭云琴 A kind of absorbing sound and lowering noise fire proofing and preparation method thereof
CN109537485A (en) * 2019-01-16 2019-03-29 天津市朗威柏丽科技有限公司 A kind of road noise barrier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551903A (en) * 1991-08-21 1993-03-02 Hirokazu Mizushima Apparatus and method for preventing noise for track
CN101244920A (en) * 2008-03-25 2008-08-20 东南大学 Concrete base sound absorption material for road sound screen and method of manufacturing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0551903A (en) * 1991-08-21 1993-03-02 Hirokazu Mizushima Apparatus and method for preventing noise for track
CN101244920A (en) * 2008-03-25 2008-08-20 东南大学 Concrete base sound absorption material for road sound screen and method of manufacturing the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103130478A (en) * 2013-02-28 2013-06-05 四川省长源建筑工程有限责任公司 Environmentally-friendly building heat insulation material
CN103145391A (en) * 2013-04-03 2013-06-12 北方工业大学 Environment-friendly building material
CN105175841A (en) * 2014-08-19 2015-12-23 南京林业大学 Sound absorbing material based on waste rubber powder and manufacturing method thereof
CN105175841B (en) * 2014-08-19 2017-05-17 南京林业大学 Sound absorbing material based on waste rubber powder and manufacturing method thereof
CN105153472A (en) * 2015-09-17 2015-12-16 李�杰 Light-weight sound-absorbing board and preparation method thereof
CN105153472B (en) * 2015-09-17 2017-11-14 河南天地装饰工程有限公司 Light silencing sheet material and preparation method thereof
CN106750672A (en) * 2016-12-16 2017-05-31 吴中区穹窿山天仲高分子材料技术研究所 A kind of new sound-absorbing material
CN106905777A (en) * 2017-02-24 2017-06-30 郭云琴 A kind of absorbing sound and lowering noise fire proofing and preparation method thereof
CN109537485A (en) * 2019-01-16 2019-03-29 天津市朗威柏丽科技有限公司 A kind of road noise barrier

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