CN105086487A - Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material - Google Patents
Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material Download PDFInfo
- Publication number
- CN105086487A CN105086487A CN201510557289.1A CN201510557289A CN105086487A CN 105086487 A CN105086487 A CN 105086487A CN 201510557289 A CN201510557289 A CN 201510557289A CN 105086487 A CN105086487 A CN 105086487A
- Authority
- CN
- China
- Prior art keywords
- muffling
- temperature resistant
- resistant material
- deionized water
- automobile exhaust
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a muffling purification high-temperature resistant material for an automobile exhaust pipeline and a preparation method of the muffling purification high-temperature resistant material. The muffling purification high-temperature resistant material comprises the following raw materials in parts by weight: loofah sponge, divalent and trivalent iron salts, aqueous ammonia, calcined nano-micropore alumina powder, nano-titanium dioxide, flame-retardant polyether, hollow glass microspheres, high-pressure polyethylene, high-viscosity attapulgite, dichroite micro powder, a silane coupling agent, nano-carbon black, EPD, butadiene-acrylonitrile rubber, epoxy resin, modified mullite fiber, a benzene-alcohol solution, chlorite, a sodium hydroxide solution, and a defined amount of deionized water. The preparation method comprises the following steps: taking loofah sponge as a main material; adding a large number of sorbents and reducing agents to obtain a mixture I; adding the mixture I into high-shearing rubber composite powder; carrying out a reaction under the environment of unceasingly injection of an inert gas at 500 to 700 DEG C; carrying out cooling and forming for preparation. Due to the vascular bundle structure of loofah sponge and the porous structure of the final product, the muffling effect of the product is enhanced; due to the sorbents and the reducing agents, purification treatment of automobile exhaust is realized.
Description
Technical field
The invention belongs to chemical material field, specifically relate to a kind of automobile exhaust pipeline noise reduction purification high temperature material and preparation method.
Background technology
Along with China Auto Market, both production and marketing thrive, along with and come be that the huge environmental protection pressure comprising environment and noise increases day by day.The larger mobile source of pollution that automobile noise pollutes, tail gas pollution has become human society, harm people's is healthy.
Vegetable Sponge of Luffa is the vascular bundle of the ripe fault of cucurbitaceous plant sponge gourd or Guangdong sponge gourd.In the process of growth of sponge gourd, Vegetable Sponge of Luffa is the part that in sponge gourd, dioxide-containing silica is higher, toughness is stronger, and the vascular bundle tubulose of its natural generation and reticulated structure make it have very strong adsorptive power.
Summary of the invention
For solving get on the car noise and automobile exhaust pollution, the invention provides a kind of automobile exhaust pipeline noise reduction purification high temperature material and preparation method.
For achieving the above object, the technical solution used in the present invention is:
A kind of automobile exhaust pipeline noise reduction purifies high temperature material, said composition comprises the raw material by following weight part: Vegetable Sponge of Luffa 120-150, divalence and trivalent iron salt 8-10, ammoniacal liquor 3-4, calcining nanometer micropore aluminum oxide powder 20-40, nano titanium oxide 12-20, flame retarding polyether 6-10, hollow glass microballoon 3-7, high-pressure polyethylene 20-40, high sticky attapulgite 40-50, trichroite micro mist 15-21, silane coupling agent 8-12, nano carbon black 12-18, Ethylene Propylene Terpolymer alkene rubber 20-30, paracril 22-28, epoxy resin 23-27, modification mullite fiber 8-14, benzene alcoholic solution 30-80, chlorite 3-6, sodium hydroxide solution 8-10, appropriate amount of deionized water.
A preparation method for automobile exhaust pipeline noise reduction purification high temperature material, is characterized in that, comprise the following steps:
(1) divalence and trivalent iron salt, ammoniacal liquor are mixed, and the deionized water adding gross weight 2-4 times reacts 2-4h at 30-40 DEG C, filters, filtrate is calcined 2-3h at 100 DEG C, obtains ferrite micropowder for subsequent use;
(2) Vegetable Sponge of Luffa is cleaned, naturally dry, pulverize, cross 40 mesh sieves, then adopt 600W microwave to dry 2-10min to constant weight, obtain luffa vegetable sponge for subsequent use, luffa vegetable sponge is put into extractor, add benzene alcoholic solution, at 80-100 DEG C, 5-8h is extracted after stirring, chlorite and gross weight 2-4 deionized water doubly will be added in extract, at 60-80 DEG C of process 5-10h after stirring, add potassium hydroxide solution heat-activated process 4-6h at 100-120 DEG C afterwards, add hydrochloric acid stir process 2-3h at 85-90 DEG C afterwards, cooling, 2-4 is washed all over extremely neutral with deionized water, obtain crystallite loofah fiber, by crystallite loofah fiber, calcining nanometer micropore aluminum oxide powder, nano titanium oxide mixes, at 180-200 DEG C, to obtain graft modification loofah fiber for subsequent use for heated and stirred 10-15h,
(3) by graft modification loofah fiber, nano carbon black, modification mullite fiber, high sticky attapulgite, the mixing of trichroite micro mist, and at 80-100 DEG C of heated and stirred 10-15h, further graft modification mixture is obtained;
(4) Ethylene Propylene Terpolymer alkene rubber, paracril, epoxy resin are put into shears high speed and sheared 3-5h, obtain composite powder, afterwards by composite powder, further graft modification mixture, flame retarding polyether, hollow glass microballoon, high-pressure polyethylene, silane coupling agent, mixing, 10-12h is stirred to merging evenly under the rare gas element constantly injected at 500-700 DEG C, cooling, shaping, to obtain final product.
Beneficial effect of the present invention:
The present invention is based on Vegetable Sponge of Luffa, be equipped with a large amount of sorbent material, reductive agent, join in the rubber combined powder of high-shear degree, after the inert gas environment reaction of constantly injecting at 500-700 DEG C, prepared by cooling forming, the loofah fiber Pipe bundle structure adopted and the vesicular structure of end article, achieve the potent sound-absorbing effect of goods; The multiple sorbent material adopted and reductive agent, achieve the purifying treatment of vehicle exhaust.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described.
Embodiment 1:
A kind of automobile exhaust pipeline noise reduction purifies high temperature material, said composition comprises the raw material by following weight part: Vegetable Sponge of Luffa 120, divalence and trivalent iron salt 8, ammoniacal liquor 3, calcining nanometer micropore aluminum oxide powder 40, nano titanium oxide 20, flame retarding polyether 8, hollow glass microballoon 5, high-pressure polyethylene 30, high sticky attapulgite 50, trichroite micro mist 21, silane coupling agent 10, nano carbon black 18, Ethylene Propylene Terpolymer alkene rubber 25, paracril 258, epoxy resin 25, modification mullite fiber 14, benzene alcoholic solution 30, chlorite 3, sodium hydroxide solution 8, appropriate amount of deionized water.
A preparation method for automobile exhaust pipeline noise reduction purification high temperature material, comprises the following steps:
(1) divalence and trivalent iron salt, ammoniacal liquor are mixed, and the deionized water adding gross weight 3 times reacts 3h at 35 DEG C, filters, filtrate is calcined 2.5h at 100 DEG C, obtains ferrite micropowder for subsequent use;
(2) Vegetable Sponge of Luffa is cleaned, naturally dry, pulverize, cross 40 mesh sieves, then adopt 600W microwave to dry 2-10min to constant weight, obtain luffa vegetable sponge for subsequent use, luffa vegetable sponge is put into extractor, add benzene alcoholic solution, at 90 DEG C, 6.5h is extracted after stirring, the deionized water of chlorite and gross weight 3 times will be added in extract, at 70 DEG C of process 7.5h after stirring, add potassium hydroxide solution heat-activated process 5h at 110 DEG C afterwards, add hydrochloric acid stir process 2.5h at 87.5 DEG C afterwards, cooling, 3 times are washed to neutral with deionized water, obtain crystallite loofah fiber, by crystallite loofah fiber, calcining nanometer micropore aluminum oxide powder, nano titanium oxide mixes, at 190 DEG C, to obtain graft modification loofah fiber for subsequent use for heated and stirred 12.5h,
(3) by graft modification loofah fiber, nano carbon black, modification mullite fiber, high sticky attapulgite, the mixing of trichroite micro mist, and at 90 DEG C of heated and stirred 12.5h, further graft modification mixture is obtained;
(4) Ethylene Propylene Terpolymer alkene rubber, paracril, epoxy resin are put into shears high speed and sheared 4h, obtain composite powder, afterwards by composite powder, further graft modification mixture, flame retarding polyether, hollow glass microballoon, high-pressure polyethylene, silane coupling agent, mixing, 12h is stirred to merging evenly under the rare gas element constantly injected at 500 DEG C, cooling, shaping, to obtain final product.
Embodiment 2:
A kind of automobile exhaust pipeline noise reduction purifies high temperature material, said composition comprises the raw material by following weight part: Vegetable Sponge of Luffa 135, divalence and trivalent iron salt 9, ammoniacal liquor 3.5, calcining nanometer micropore aluminum oxide powder 30, nano titanium oxide 16, flame retarding polyether 8, hollow glass microballoon 57, high-pressure polyethylene 30, high sticky attapulgite 45, trichroite micro mist 18, silane coupling agent 10, nano carbon black 15, Ethylene Propylene Terpolymer alkene rubber 25, paracril 25, epoxy resin 25, modification mullite fiber 11, benzene alcoholic solution 55, chlorite 4.5, sodium hydroxide solution 9, appropriate amount of deionized water.
A preparation method for automobile exhaust pipeline noise reduction purification high temperature material, comprises the following steps:
(1) divalence and trivalent iron salt, ammoniacal liquor are mixed, and the deionized water adding gross weight 3 times reacts 3h at 35 DEG C, filters, filtrate is calcined 2-3h at 100 DEG C, obtains ferrite micropowder for subsequent use;
(2) Vegetable Sponge of Luffa is cleaned, naturally dry, pulverize, cross 40 mesh sieves, then adopt 600W microwave to dry 2-10min to constant weight, obtain luffa vegetable sponge for subsequent use, luffa vegetable sponge is put into extractor, add benzene alcoholic solution, at 90 DEG C, 6.5h is extracted after stirring, the deionized water of chlorite and gross weight 3 times will be added in extract, at 70 DEG C of process 7.5h after stirring, add potassium hydroxide solution heat-activated process 5h at 110 DEG C afterwards, add hydrochloric acid stir process 2.5h at 87 DEG C afterwards, cooling, 3 times are washed to neutral with deionized water, obtain crystallite loofah fiber, by crystallite loofah fiber, calcining nanometer micropore aluminum oxide powder, nano titanium oxide mixes, at 190 DEG C, to obtain graft modification loofah fiber for subsequent use for heated and stirred 12.5h,
(3) by graft modification loofah fiber, nano carbon black, modification mullite fiber, high sticky attapulgite, the mixing of trichroite micro mist, and at 90 DEG C of heated and stirred 12.5h, further graft modification mixture is obtained;
(4) Ethylene Propylene Terpolymer alkene rubber, paracril, epoxy resin are put into shears high speed and sheared 4h, obtain composite powder, afterwards by composite powder, further graft modification mixture, flame retarding polyether, hollow glass microballoon, high-pressure polyethylene, silane coupling agent, mixing, 11h is stirred to merging evenly under the rare gas element constantly injected at 600 DEG C, cooling, shaping, to obtain final product.
Embodiment 3:
A kind of automobile exhaust pipeline noise reduction purifies high temperature material, said composition comprises the raw material by following weight part: Vegetable Sponge of Luffa 150, divalence and trivalent iron salt 10, ammoniacal liquor 4, calcining nanometer micropore aluminum oxide powder 20, nano titanium oxide 12, flame retarding polyether 8, hollow glass microballoon 5, high-pressure polyethylene 30, high sticky attapulgite 40, trichroite micro mist 15, silane coupling agent 10, nano carbon black 12, Ethylene Propylene Terpolymer alkene rubber 25, paracril 25, epoxy resin 25, modification mullite fiber 8, benzene alcoholic solution 80, chlorite 6, sodium hydroxide solution 10, appropriate amount of deionized water.
A preparation method for automobile exhaust pipeline noise reduction purification high temperature material, comprises the following steps:
(1) divalence and trivalent iron salt, ammoniacal liquor are mixed, and the deionized water adding gross weight 3 times reacts 3h at 35 DEG C, filters, filtrate is calcined 2.5h at 100 DEG C, obtains ferrite micropowder for subsequent use;
(2) Vegetable Sponge of Luffa is cleaned, naturally dry, pulverize, cross 40 mesh sieves, then adopt 600W microwave to dry 2-10min to constant weight, obtain luffa vegetable sponge for subsequent use, luffa vegetable sponge is put into extractor, add benzene alcoholic solution, at 90 DEG C, 6.5h is extracted after stirring, the deionized water of chlorite and gross weight 3 times will be added in extract, at 70 DEG C of process 7.5h after stirring, add potassium hydroxide solution heat-activated process 5h at 110 DEG C afterwards, add hydrochloric acid stir process 2.5h at 87.5 DEG C afterwards, cooling, 3 times are washed to neutral with deionized water, obtain crystallite loofah fiber, by crystallite loofah fiber, calcining nanometer micropore aluminum oxide powder, nano titanium oxide mixes, at 190 DEG C, to obtain graft modification loofah fiber for subsequent use for heated and stirred 12.5h,
(3) by graft modification loofah fiber, nano carbon black, modification mullite fiber, high sticky attapulgite, the mixing of trichroite micro mist, and at 90 DEG C of heated and stirred 12.5h, further graft modification mixture is obtained;
(4) Ethylene Propylene Terpolymer alkene rubber, paracril, epoxy resin are put into shears high speed and sheared 4h, obtain composite powder, afterwards by composite powder, further graft modification mixture, flame retarding polyether, hollow glass microballoon, high-pressure polyethylene, silane coupling agent, mixing, 10h is stirred to merging evenly under the rare gas element constantly injected at 700 DEG C, cooling, shaping, to obtain final product.
For four just the same cars, the material not using any material respectively and adopt above-described embodiment 1-3 obtained, it is as shown in table 1 that measurement exhaust emissions situation and noise eliminate situation result:
The duplicate car test-results of four, table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Do not use any material | |
| Tail gas | Obnoxious flavour content 13.4% | Obnoxious flavour content 14.4% | Obnoxious flavour content 14.4% | Pollution level is large |
| Noise | Less | Little | Generally | Greatly |
As seen from the above table, material of the present invention can realize the noise reduction of automobile exhaust pipeline noise and the purifying treatment of tail gas; From experimental result, calcining nanometer micropore aluminum oxide powder, nano titanium oxide, nano carbon black, modification mullite fiber, high sticky attapulgite, trichroite micro mist more dominant in tail gas clean-up process, loofah fiber is more effective to the absorption of sound.
Claims (2)
1. an automobile exhaust pipeline noise reduction purifies high temperature material, it is characterized in that, said composition comprises the raw material by following weight part: Vegetable Sponge of Luffa 120-150, divalence and trivalent iron salt 8-10, ammoniacal liquor 3-4, calcining nanometer micropore aluminum oxide powder 20-40, nano titanium oxide 12-20, flame retarding polyether 6-10, hollow glass microballoon 3-7, high-pressure polyethylene 20-40, high sticky attapulgite 40-50, trichroite micro mist 15-21, silane coupling agent 8-12, nano carbon black 12-18, Ethylene Propylene Terpolymer alkene rubber 20-30, paracril 22-28, epoxy resin 23-27, modification mullite fiber 8-14, benzene alcoholic solution 30-80, chlorite 3-6, sodium hydroxide solution 8-10, appropriate amount of deionized water.
2. a preparation method for automobile exhaust pipeline noise reduction purification high temperature material as claimed in claim 1, is characterized in that, comprise the following steps:
(1) divalence and trivalent iron salt, ammoniacal liquor are mixed, and the deionized water adding gross weight 2-4 times reacts 2-4h at 30-40 DEG C, filters, filtrate is calcined 2-3h at 100 DEG C, obtains ferrite micropowder for subsequent use;
(2) Vegetable Sponge of Luffa is cleaned, naturally dry, pulverize, cross 40 mesh sieves, then adopt 600W microwave to dry 2-10min to constant weight, obtain luffa vegetable sponge for subsequent use, luffa vegetable sponge is put into extractor, add benzene alcoholic solution, at 80-100 DEG C, 5-8h is extracted after stirring, chlorite and gross weight 2-4 deionized water doubly will be added in extract, at 60-80 DEG C of process 5-10h after stirring, add potassium hydroxide solution heat-activated process 4-6h at 100-120 DEG C afterwards, add hydrochloric acid stir process 2-3h at 85-90 DEG C afterwards, cooling, 2-4 is washed all over extremely neutral with deionized water, obtain crystallite loofah fiber, by crystallite loofah fiber, calcining nanometer micropore aluminum oxide powder, nano titanium oxide mixes, at 180-200 DEG C, to obtain graft modification loofah fiber for subsequent use for heated and stirred 10-15h,
(3) by graft modification loofah fiber, nano carbon black, modification mullite fiber, high sticky attapulgite, the mixing of trichroite micro mist, and at 80-100 DEG C of heated and stirred 10-15h, further graft modification mixture is obtained;
(4) Ethylene Propylene Terpolymer alkene rubber, paracril, epoxy resin are put into shears high speed and sheared 3-5h, obtain composite powder, afterwards by composite powder, further graft modification mixture, flame retarding polyether, hollow glass microballoon, high-pressure polyethylene, silane coupling agent, mixing, 10-12h is stirred to merging evenly under the rare gas element constantly injected at 500-700 DEG C, cooling, shaping, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510557289.1A CN105086487A (en) | 2015-09-01 | 2015-09-01 | Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510557289.1A CN105086487A (en) | 2015-09-01 | 2015-09-01 | Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105086487A true CN105086487A (en) | 2015-11-25 |
Family
ID=54567863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510557289.1A Pending CN105086487A (en) | 2015-09-01 | 2015-09-01 | Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105086487A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178687A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of filtration is compound goes haze molecule calcium silicates graphene nano base material and production method thereof |
| CN106585062A (en) * | 2016-12-08 | 2017-04-26 | 广东信力科技股份有限公司 | Preparation method of compound with high sound attenuation performance |
| CN109206150A (en) * | 2018-09-20 | 2019-01-15 | 赵顺全 | A kind of preparation method of sound-absorbing material |
| CN111803972A (en) * | 2020-06-15 | 2020-10-23 | 杭州思创磁性器件有限公司 | Magnetic sheet toy and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703889A (en) * | 2009-10-28 | 2010-05-12 | 东南大学 | Method for preparing rubber powder-supported pavement automobile exhaust degrading composite |
| CN103131033A (en) * | 2013-03-20 | 2013-06-05 | 福建农林大学 | Method for preparing nano manganese dioxide/nano microcrystalline cellulose composite films |
| CN103554572A (en) * | 2013-10-25 | 2014-02-05 | 安徽文峰电子科技集团有限公司 | High temperature resistant and flame retardant nitrile rubber cable material |
| CN103758615A (en) * | 2014-01-14 | 2014-04-30 | 浙江建中竹业科技有限公司 | Antiflaming tail gas absorption device |
-
2015
- 2015-09-01 CN CN201510557289.1A patent/CN105086487A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101703889A (en) * | 2009-10-28 | 2010-05-12 | 东南大学 | Method for preparing rubber powder-supported pavement automobile exhaust degrading composite |
| CN103131033A (en) * | 2013-03-20 | 2013-06-05 | 福建农林大学 | Method for preparing nano manganese dioxide/nano microcrystalline cellulose composite films |
| CN103554572A (en) * | 2013-10-25 | 2014-02-05 | 安徽文峰电子科技集团有限公司 | High temperature resistant and flame retardant nitrile rubber cable material |
| CN103758615A (en) * | 2014-01-14 | 2014-04-30 | 浙江建中竹业科技有限公司 | Antiflaming tail gas absorption device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178687A (en) * | 2016-07-11 | 2016-12-07 | 苏州锐特捷化工制品有限公司 | A kind of filtration is compound goes haze molecule calcium silicates graphene nano base material and production method thereof |
| CN106585062A (en) * | 2016-12-08 | 2017-04-26 | 广东信力科技股份有限公司 | Preparation method of compound with high sound attenuation performance |
| CN106585062B (en) * | 2016-12-08 | 2018-07-10 | 广东信力科技股份有限公司 | A kind of preparation method of high noise reduction compound |
| CN109206150A (en) * | 2018-09-20 | 2019-01-15 | 赵顺全 | A kind of preparation method of sound-absorbing material |
| CN111803972A (en) * | 2020-06-15 | 2020-10-23 | 杭州思创磁性器件有限公司 | Magnetic sheet toy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105086487A (en) | Muffling purification high-temperature resistant material for automobile exhaust pipeline and preparation method of muffling purification high-temperature resistant material | |
| CN103521174B (en) | Indoor air purification material and preparation method thereof | |
| CN105413629A (en) | Alga-calcium-mineral air purification medium and preparation method and application thereof | |
| CN108636354A (en) | A kind of novel air cleanser and its preparation process | |
| CN104294582B (en) | A kind of preparation method of silk fabric uvioresistant finishing agent | |
| CN103937023A (en) | Preparation method of light calcium-alginate-base sponge body functional material | |
| CN106268632A (en) | A kind of charcoal photocatalyst formaldehyde purifying agent and preparation method thereof | |
| CN110292855A (en) | A kind of air purifying filter mesh and preparation method thereof for administering formaldehyde | |
| CN103755297A (en) | Multifunctional green environmental protection building decoration material | |
| CN108339148B (en) | Mesoporous silica-based composite microsphere with efficient blood coagulation function and preparation method thereof | |
| CN107353498A (en) | A kind of vehicle inside decoration polypropene composition and preparation method thereof of low smell, low-density | |
| CN103055833B (en) | Preparation method of ammonia removal material | |
| CN105289547A (en) | Modified honeycomb-shape activated carbon adsorbing VOCs and preparation method thereof | |
| CN110585910A (en) | Indoor formaldehyde scavenger and preparation method thereof | |
| CN107224867A (en) | A kind of oyster shell whiting indoor air purification wall material and preparation method thereof | |
| CN104480732A (en) | Efficient bacteriostatic PU synthetic leather and producing method thereof | |
| CN113209960A (en) | Honeycomb type denitration catalyst and preparation method and application thereof | |
| CN107349908A (en) | A kind of amination graphene/Fe3O4Magnetic composite and preparation method and application | |
| CN104437639B (en) | A kind of CNT is combined the preparation method of tetrasulfonic acid iron-phthalocyanine green deep water treatment agent | |
| CN103613815A (en) | Reprocessing method for preparing antibacterial composite thin film from waste rubber | |
| CN105923727A (en) | Bentonite purifier and preparation method thereof | |
| CN105133320A (en) | Light antibacterial sound absorbing cotton and preparing method | |
| CN112876194B (en) | Ceiling with air purification function and preparation method thereof | |
| CN113351014A (en) | Nano composite formaldehyde decomposition material | |
| CN106422743A (en) | High-efficiency air purification material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151125 |