CN107415018A - A kind of preparation method of waterproof stalk board for automobile sound absorption - Google Patents

A kind of preparation method of waterproof stalk board for automobile sound absorption Download PDF

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Publication number
CN107415018A
CN107415018A CN201710196067.0A CN201710196067A CN107415018A CN 107415018 A CN107415018 A CN 107415018A CN 201710196067 A CN201710196067 A CN 201710196067A CN 107415018 A CN107415018 A CN 107415018A
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CN
China
Prior art keywords
waterproof
preparation
sound absorption
automobile sound
stalk board
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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CN201710196067.0A
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Chinese (zh)
Inventor
屠明鑫
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ANHUI YUEJIAO FURNITURE Co Ltd
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ANHUI YUEJIAO FURNITURE Co Ltd
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Priority to CN201710196067.0A priority Critical patent/CN107415018A/en
Publication of CN107415018A publication Critical patent/CN107415018A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/20—Compounds of alkali metals or ammonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • B27K3/50—Mixtures of different organic impregnating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/0055—Radio-waves, e.g. microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
    • B27K5/0065—Ultrasonic treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K9/00—Chemical or physical treatment of reed, straw, or similar material
    • B27K9/007—Straw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/15—Decontamination of previously treated wood

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a kind of preparation method of the waterproof stalk board for automobile sound absorption, rice straw and luffa are pulverized and mixed according to mass ratio 7: 3 modified by the present invention, using the isocyanates of WC 300 as adhesive, through glue mixing, mat formation, hot-pressing processing is made；The mixed powder of rice straw and luffa is pre-processed with alkali lye and plasma first, add hole and surface is compared in absorption, and because plasma oxidation acts on, crystallinity is caused to decline, so that when being soaked in the ethanol solution processing of silane coupler, contact area increase effective with silane modifier, there occurs polycondensation reaction formation hydrogen bond for the hydroxyl on the mixed powder surface silanol formed with coupling agent hydrolysis, pass through the drying of microwave again, dehydration forms stable chemical combination key, realize cladding of the coupling agent on mixed powder surface, reduce material hydrophilic, the present invention is applied to automobile sound-absorbing material, with sound-absorbing antidetonation, waterproof strength is high, coatability is good, glue mixing is uniform.

Description

A kind of preparation method of waterproof stalk board for automobile sound absorption
Technical field
The present invention relates to stalk board preparing technical field, and in particular to a kind of system of waterproof stalk board for automobile sound absorption Preparation Method.
Background technology
Automobile using sound-absorbing material, often it is porous sheet material and its perforated material.Foamed plastics is a kind of conventional automobile sound absorption Material, it is a kind of non-renewable resources.China's straw utilization rate is relatively low, general on-site incineration, not only destroys soil ecology, and And burn dense smoke and bring environmental pollution.If energy industrial utilization not only solves problem of environmental pollution, it helps solves agriculture, rural areas and farmers Problem.Therefore Hua Liang et al. exists《The new sound-absorbing material of automobile using --- the measure of rice straw plate sound absorbing capabilities》Being used in one text can Regenerated resources rice straw plate substitutes automobile using acoustic foam plastics, and XMQ is substituted with rice straw plate by testing to find to work as During foamed plastics in the primary motivation acoustic hood of 6608 cars, the noise reduction newly covered is covered better than former, experiment results proved：Lightweight Rice straw plate can serve as automobile sound-absorbing material.
But the surface of conventional stalk is rich in hydroxyl, these hydroxyls cause fiber to have very high water imbibition, as automobile Using exposing to the weather for a long time and stalk board intensity can be caused to reduce, service life shortens sound-absorbing material, is on the other hand made in text It is excessively simple to obtain stalk board technique, and easily occurs the uneven phenomenon of glue mixing in glue mixing, the coarse adhesive force of finished surface is low, It is unfavorable for sequent surface and covers with paint, lacquer, colour wash, etc. process.Thus need to be modified stalk surface the compatibility and sheet material with raising and adhesive Coatability.
The content of the invention
It is existing to overcome it is an object of the invention to provide a kind of preparation method of the waterproof stalk board for automobile sound absorption The deficiency of technology.
The object of the present invention is achieved like this：
The preparation method of a kind of waterproof stalk board for automobile sound absorption, it is characterised in that there is following processing step：
（1）By sponge gourd mellow fruit, peeling stoning, it is cut into small pieces and is cleaned with clear water, it is standby that dries pulverizing crosses 60-80 mesh sieves；
（2）Rice straw be crushed into 60-80 mesh sieves, add step（1）Loofah powder is mixed at a high speed, and mixed powder is first soaked in In 2wt.%NaOH solution, microwave intermittent radiation processing, suction filtration is washed with deionized water to neutrality, drying, places into plasma stone Carry out handling on English reactor that mixed powder must be pre-processed；
（3）It is 4.5-5.5 that second acid for adjusting pH is added into 95wt.% ethanol water, adds silane coupler ultrasonic disperse 5- 10 minutes, it is made into the ethanol solution of 1wt.% silane coupler；
（4）By step（2）Obtained pretreatment mixed powder is soaked in the ethanol solution of silane coupler, in taking out and being washed to Property, drying, microwave radiation for a period of time after, then be placed in water soluble phenol resin immersion a period of time, filtering dry at room temperature Modified mixed straw powder；
（5）By step（4）Modification mixed straw powder through glue mixing, mat formation, discharged after hot-pressing processing.
Described rice straw and luffa mixes according to mass ratio 7: 3.
The step（2）In weigh 100mg mixed powders and be put under normal temperature and pressure conditionses on plasma quartz reactor 15s is handled, discharging condition is：Interelectrode distance is 15mm, power 110W；Wherein plasma gas is oxygen, nitrogen At least one of gas, argon gas and air.
The step（2）Middle to use 700W microwave intermittent radiation 30min, wherein emissive intervals are 10min, every time radiation 10min。
The step（3）Middle silane coupler is vinyltrimethoxy silane, KH550,3- aminopropyl trimethoxy silicon At least one of alkane, amino silane.
The step（4）In be soaked in 30min in the ethanol solution of silane coupler, take out and be washed to neutrality, dry, 700W microwave radiation 180s, then it is placed in water soluble phenol resin immersion 12-14 hours.
The step（5）In adhesive used be the isocyanates of WC- 300, resin added 3%；Hot pressing temperature：170℃.
The present invention has following beneficial effect：Rice straw and luffa are pulverized and mixed by the present invention according to mass ratio 7: 3 to be changed After property, using the isocyanates of WC- 300 as adhesive, through glue mixing, mat formation, hot-pressing processing is made；By rice straw and luffa Mixed powder is pre-processed with alkali lye and plasma to remove the lignin on surface first, is increased hole and is adsorbed than surface, And because plasma oxidation acts on, intermolecular hydrogen bond action is reduced, crystal region is caused crystallinity by partial destruction Decline, so that when being soaked in the ethanol solution processing of silane coupler, contact area increase effective with silane modifier is even Connection agent can be adsorbed to mixed powder surface rapidly, and hydroxyl and the coupling agent on mixed powder surface hydrolyze formed silanol and occurred Polycondensation reaction forms hydrogen bond, then forms stable chemical combination key by the drying of microwave, dehydration, realizes that coupling agent is mixing The cladding of powder surface, the swelling of fiber is reduced or remitted, reduce material hydrophilic, hydrophobicity and mechanical strength are improved, prolonged Grown service life, at the same it is silane modified after be more beneficial for sequent surface and cover with paint, lacquer, colour wash, etc. the completion of process and the compatibility with adhesive Good, glue mixing is uniform, and the present invention is applied to automobile sound-absorbing material, has the advantages of sound-absorbing antidetonation, waterproof strength is high.
Embodiment
The preparation method of a kind of waterproof stalk board for automobile sound absorption, it is characterised in that there is following processing step：
（1）By sponge gourd mellow fruit, peeling stoning, it is cut into small pieces and is cleaned with clear water, it is standby that dries pulverizing crosses 60-80 mesh sieves；
（2）Rice straw be crushed into 60-80 mesh sieves, add step（1）Loofah powder is mixed at a high speed, and mixed powder is first soaked in In 2wt.%NaOH solution, microwave intermittent radiation processing, suction filtration is washed with deionized water to neutrality, drying, places into plasma stone Carry out handling on English reactor that mixed powder must be pre-processed；
（3）It is 4.5-5.5 that second acid for adjusting pH is added into 95wt.% ethanol water, adds silane coupler ultrasonic disperse 5- 10 minutes, it is made into the ethanol solution of 1wt.% silane coupler；
（4）By step（2）Obtained pretreatment mixed powder is soaked in the ethanol solution of silane coupler, in taking out and being washed to Property, drying, microwave radiation for a period of time after, then be placed in water soluble phenol resin immersion a period of time, filtering dry at room temperature Modified mixed straw powder；
（5）By step（4）Modification mixed straw powder through glue mixing, mat formation, discharged after hot-pressing processing.
Described rice straw and luffa mixes according to mass ratio 7: 3.
The step（2）In weigh 100mg mixed powders and be put under normal temperature and pressure conditionses on plasma quartz reactor 15s is handled, discharging condition is：Interelectrode distance is 15mm, power 110W；Wherein plasma gas is oxygen, nitrogen At least one of gas, argon gas and air.
The step（2）Middle to use 700W microwave intermittent radiation 30min, wherein emissive intervals are 10min, every time radiation 10min。
The step（3）Middle silane coupler is vinyltrimethoxy silane, KH550,3- aminopropyl trimethoxy silicon At least one of alkane, amino silane.
The step（4）In be soaked in 30min in the ethanol solution of silane coupler, take out and be washed to neutrality, dry, 700W microwave radiation 180s, then it is placed in water soluble phenol resin immersion 12-14 hours.
The step（5）In adhesive used be the isocyanates of WC- 300, resin added 3%；Hot pressing temperature：170℃.

Claims (7)

1. the preparation method of a kind of waterproof stalk board for automobile sound absorption, it is characterised in that there is following processing step：
（1）By sponge gourd mellow fruit, peeling stoning, it is cut into small pieces and is cleaned with clear water, it is standby that dries pulverizing crosses 60-80 mesh sieves；
（2）Rice straw be crushed into 60-80 mesh sieves, add step（1）Loofah powder is mixed at a high speed, and mixed powder is first soaked in In 2wt.%NaOH solution, microwave intermittent radiation processing, suction filtration is washed with deionized water to neutrality, drying, places into plasma stone Carry out handling on English reactor that mixed powder must be pre-processed；
（3）It is 4.5-5.5 that second acid for adjusting pH is added into 95wt.% ethanol water, adds silane coupler ultrasonic disperse 5- 10 minutes, it is made into the ethanol solution of 1wt.% silane coupler；
（4）By step（2）Obtained pretreatment mixed powder is soaked in the ethanol solution of silane coupler, in taking out and being washed to Property, drying, microwave radiation for a period of time after, then be placed in water soluble phenol resin immersion a period of time, filtering dry at room temperature Modified mixed straw powder；
（5）By step（4）Modification mixed straw powder through glue mixing, mat formation, discharged after hot-pressing processing.
A kind of 2. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute The rice straw and luffa stated mix according to mass ratio 7: 3.
A kind of 3. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute State step（2）In weigh 100mg mixed powders and be put under normal temperature and pressure conditionses on plasma quartz reactor and handle 15s, put Electric condition is：Interelectrode distance is 15mm, power 110W；Wherein plasma gas is oxygen, nitrogen, argon gas and sky At least one of gas.
A kind of 4. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute State step（2）Middle to use 700W microwave intermittent radiation 30min, wherein emissive intervals are 10min, radiate 10min every time.
A kind of 5. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute State step（3）Middle silane coupler is vinyltrimethoxy silane, KH550,3- aminopropyl trimethoxysilane, amino silane At least one of.
A kind of 6. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute State step（4）In be soaked in 30min in the ethanol solution of silane coupler, take out and be washed to neutrality, dry, 700W microwave spokes 180s is penetrated, then is placed in water soluble phenol resin immersion 12-14 hours.
A kind of 7. preparation method of waterproof stalk board for automobile sound absorption according to claim 1, it is characterised in that institute State step（5）In adhesive used be the isocyanates of WC- 300, resin added 3%；Hot pressing temperature：170℃.
CN201710196067.0A 2017-03-29 2017-03-29 A kind of preparation method of waterproof stalk board for automobile sound absorption Pending CN107415018A (en)

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CN201710196067.0A CN107415018A (en) 2017-03-29 2017-03-29 A kind of preparation method of waterproof stalk board for automobile sound absorption

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108676139A (en) * 2018-06-12 2018-10-19 常州天晟新材料研究院有限公司 A kind of sqouynd absorption lowering noise sound insulation polyurethane foamed material and preparation method thereof, application
CN111388939A (en) * 2020-05-21 2020-07-10 乐山师范学院 Wear-resistant dustproof dance pad and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN1631632A (en) * 2004-12-23 2005-06-29 南京林业大学 Industrialized production method of wheat straw flakeboard
CN101725032A (en) * 2009-12-22 2010-06-09 暨南大学 Microwave modification method of plant fiber and application thereof
CN102066063A (en) * 2008-04-30 2011-05-18 希乐克公司 Cellulosic and lignocellulosic structural materials and methods and systems for making the same
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CN103435759A (en) * 2013-08-23 2013-12-11 江苏大学 Straw surface treatment and graft modification method
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CN106380607A (en) * 2016-08-29 2017-02-08 桂林舒康建材有限公司 Preparation method of modified wood powder

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Publication number Priority date Publication date Assignee Title
CN1631632A (en) * 2004-12-23 2005-06-29 南京林业大学 Industrialized production method of wheat straw flakeboard
CN102066063A (en) * 2008-04-30 2011-05-18 希乐克公司 Cellulosic and lignocellulosic structural materials and methods and systems for making the same
CN101725032A (en) * 2009-12-22 2010-06-09 暨南大学 Microwave modification method of plant fiber and application thereof
CN102212971A (en) * 2011-03-07 2011-10-12 安徽安生生物化工科技有限责任公司 Method for processing straw through plasma
CN103435759A (en) * 2013-08-23 2013-12-11 江苏大学 Straw surface treatment and graft modification method
CN104526831A (en) * 2014-12-19 2015-04-22 江南大学 Straw plate and preparing method thereof
CN105032362A (en) * 2015-03-05 2015-11-11 中霖中科环境科技（安徽）股份有限公司 Method of adsorbing printing and dyeing waste water with straw after plasma treatment
CN106380607A (en) * 2016-08-29 2017-02-08 桂林舒康建材有限公司 Preparation method of modified wood powder

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108676139A (en) * 2018-06-12 2018-10-19 常州天晟新材料研究院有限公司 A kind of sqouynd absorption lowering noise sound insulation polyurethane foamed material and preparation method thereof, application
CN111388939A (en) * 2020-05-21 2020-07-10 乐山师范学院 Wear-resistant dustproof dance pad and preparation method thereof
CN111388939B (en) * 2020-05-21 2022-07-12 乐山师范学院 Wear-resistant dustproof dance pad and preparation method thereof

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Application publication date: 20171201