CN101831192A - Flame-retardant lignin fiber for roads and preparation method thereof - Google Patents
Flame-retardant lignin fiber for roads and preparation method thereof Download PDFInfo
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- CN101831192A CN101831192A CN 201010175556 CN201010175556A CN101831192A CN 101831192 A CN101831192 A CN 101831192A CN 201010175556 CN201010175556 CN 201010175556 CN 201010175556 A CN201010175556 A CN 201010175556A CN 101831192 A CN101831192 A CN 101831192A
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Abstract
The invention discloses flame-retardant lignin fiber for roads and a preparation method thereof. The flame-retardant lignin fiber provided by the invention consists of the following materials in percentage by weight: 60 to 80 percent of lignin fiber, 5 to 10 percent of leavening agent and 15 to 30 percent of inorganic flame retardant. The preparation method comprises the following steps of: preparing the materials, cutting and crushing the materials to form the lignin fiber, then stirring the lignin fiber, the leavening agent and the inorganic flame retardant uniformly, and finally, compressing the mixture to form a finished product and packing the product under vacuum. The method for producing the flame-retardant lignin fiber for the roads by using waste newspaper and adopting a dry method utilizes the waste, accords with the era background of cyclic economy, does not generate harmful substances during production, has no any influence on the surrounding environment, and has the advantages of simple process flow, easy control and high production efficiency; and the product has good road performance, can effectively prevent the combustion of the lignin fiber and the bituminous mixture, and has obvious economic and social benefits.
Description
Technical field
The present invention relates to a kind of flame-retardant lignin fiber for roads and preparation method thereof, particularly relate to a kind of have good flame retardant effect, eco-friendly cellulose fiber for road use and preparation method thereof.
Background technology
The tunnel is a highway, the important component part of mountain ridge hilling terrain highway particularly, and, become the throat of whole highway system often because its irreplaceability.Because relative closure in case presence of fire not only can cause the serious damage of tunnel facility and tunnel structure, causes in various degree traffic jam even interruption, also can threaten user's personnel safety in the large tunnel, cause serious economy and social influence.
Bituminous concrete pavement because of its good driving comfort, low noise, visual high, maintenance is convenient etc., and factor is widely used in road engineering.But when it is applied in the tunnel, because bituminous material itself has tangible combustibility, and produce a large amount of smog and obnoxious flavour and serious threat tunnel and user's safety when burning, the combustibility and the burning and exhausting that how to reduce bituminous concrete pavement in the tunnel have become road circle personage research and the focus of paying close attention to.
In order to solve the problem of tunnel fire proofing, adopt two kinds of different modes to reduce the combustibility of bituminous pavement in the tunnel in the world usually at present.A kind of is to add fire retardant in asphalt, reacts by the material that decomposes generation in itself and the pitch during flammable organic compound burning, thereby slows down or stop the incendiary chain reaction, reaches fire-retardant purpose; Another kind is to adopt to smear the back-fire relief temperature-resistant material on the supercrust of asphalt concrete pavement, plays the fp effect by isolating blacktop.
Lignin fibre is applied to have in the asphalt raising compound height, low-temperature performance, improve a series of advantages such as compound water stability, particularly in stone mastic asphalt, lignin fibre has irreplaceable effect as pitch stablizer in the compound and reinforcement material, and in recent years because stone mastic asphalt high-quality, the continuous increase of its number of applications in highway engineering, and under the comprehensive action of traffic loading and environment, occur aging when the road surface, damage, when needing punishment, angle from resource circulation utilization, regeneration punishment to waste and old compound has clear superiority, but because the mix and the construction temperature of such compound are higher, there is certain influence in character to lignin fibre, after using, construction and operation phase still keep better quality then more to help guaranteeing the quality of regeneration asphalt Matrix mixing material as the lignin fibre in the compound, reduce regeneration cost, so the application of flame retardant type lignin fibre is for guaranteeing the asphalt quality, the combustibility that reduces asphalt has practical significance.
Summary of the invention
For reducing the combustibility of lignin fibre, the purpose of this invention is to provide a kind of flame-retardant lignin fiber that is specifically designed to bituminous pavement, this invention has good flame retardancy, and obvious to the improvement effect of performance of asphalt mixture, production cost is low, easy to use.In addition, this invention has made full use of waste and old resource and non-pollutant discharge, meets recycling economy and requirement on environmental protection.
Another object of the present invention provides a kind of preparation method of above-mentioned flame-retardant lignin fiber.
In order to achieve the above object, flame-retardant lignin fiber for roads provided by the invention, form with weight percent by following raw materials according:
Lignin fibre 60～80%
Raising agent 5～10%
Inorganic combustion inhibitor 15～30%
Lignin fibre of the present invention is 6～8 times of material deadweights by oil absorbency, and ash oontent forms less than 8% newsprinting paper cutting.
Raising agent of the present invention is a carbonate material.
Inorganic combustion inhibitor of the present invention is mixed according to 30～50 parts of weight part ratios, 25～50 parts, 20～40 parts by red phosphorus, crystal water aluminium hydroxide and hydrated magnesium silicate.
The invention provides the preparation method of above-mentioned a kind of flame-retardant lignin fiber for roads, comprise the steps:
(1) get the raw materials ready: selecting oil absorbency is 6～8 times of material deadweights, ash oontent less than 8% newsprinting paper as the starting material of producing lignin fibre;
(2) cutting: with being equipped with newsprinting paper be cut into the fragment that width is 9～11mm;
(3) pulverize: fragment is added into shredding unit, pulverizes the back and form lignin fibre, the percent of pass when lignin fibre sieves by 0.15mm is 70 ± 10%;
(4) stir: lignin fibre, raising agent and inorganic combustion inhibitor are added into whipping appts in proportion, raising agent and inorganic combustion inhibitor are uniformly distributed in the lignin fibre;
(5) finished product compression packing: the lignin fibre boil down to bulk after utilizing compressor to stir, vacuum-packed then.
The flame-retardant lignin fiber for roads that the present invention relates to has good flame retardancy, by directly adding in proportion in the asphalt, can obviously reduce the combustibility of asphalt.Since admixture the adding of lignin fibre of inorganic combustion inhibitor, the stronger free radical of activity that the hydrocarbon oxidation initial stage produces in the asphalt burning will be eliminated, by forming barrier film at asphalt surface, and modes such as carburization zone are stablized in generation, cutting off flammable, combustion-supporting gas transmits in pitch, make fire end, produce, the purpose that reach fire-retardant, presses down cigarette from putting out phenomenon.The production of flame-retardant lignin fiber makes full use of waste and old resource, does not produce solid and liquid debris in the production process simultaneously, has tangible economic and social benefit, meets the themes of the times of current recycling economy, environment protection, Sustainable development.
In order to reflect effect of the present invention, be example with SMA13, by the method for simultaneous test, tested the admixture and the fire-retardant and over-all properties of admixture this product modified asphalt SMA 13 compounds not respectively, comparing result sees Table 1:
Table 1 admixture this product SMA13 mixture performance
Annotate: will contain ignition on the marshal piece that the fixing cotton yarn of amount of gasoline is put into moulding, burn repeatedly 3 times, treat that flame puts into 60 ℃ of water tanks with test specimen after the cooling and be incubated 35 ± 5min from putting out, adopt the stability before and after the Marshall Test instrument test burning then.
Embodiment
Mode below by embodiment is elaborated to technical solution of the present invention, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1
30 parts in red phosphorus, 50 parts in crystal water aluminium hydroxide, 20 parts of thorough mixing of hydrated magnesium silicate is even, the preparation inorganic combustion inhibitor.And according to following step production flame-retardant lignin fiber.
(1) get the raw materials ready: selecting oil absorbency is 6～8 times of material deadweights, ash oontent less than 8% newsprinting paper as the starting material of producing lignin fibre;
(2) cutting: with being equipped with newsprinting paper be cut into the fragment that width is 9～11mm;
(3) pulverize: fragment is added into shredding unit, pulverizes the back and form lignin fibre, the percent of pass when lignin fibre sieves by 0.15mm is 70 ± 10%;
(4) stir: according to weight percent with lignin fibre: 60%, raising agent: 10%, and inorganic combustion inhibitor: 30% ratio is added into whipping appts, and raising agent and inorganic combustion inhibitor are uniformly distributed in the lignin fibre;
(5) finished product compression packing: the lignin fibre boil down to bulk after utilizing compressor to stir, vacuum-packed then.
Embodiment 2
50 parts in red phosphorus, 25 parts in crystal water aluminium hydroxide, 30 parts of thorough mixing of hydrated magnesium silicate is even, the preparation inorganic combustion inhibitor.And according to following step production flame-retardant lignin fiber.
(1) get the raw materials ready: selecting oil absorbency is 6～8 times of material deadweights, ash oontent less than 8% newsprinting paper as the starting material of producing lignin fibre;
(2) cutting: with being equipped with newsprinting paper be cut into the fragment that width is 9～11mm;
(3) pulverize: fragment is added into shredding unit, pulverizes the back and form lignin fibre, the percent of pass when lignin fibre sieves by 0.15mm is 70 ± 10%;
(4) stir: according to weight percent with lignin fibre: 80%, raising agent: 5%, and inorganic combustion inhibitor: 15% ratio is added into whipping appts, and raising agent and inorganic combustion inhibitor are uniformly distributed in the lignin fibre;
(5) finished product compression packing: the lignin fibre boil down to bulk after utilizing compressor to stir, vacuum-packed then.
Embodiment 3
40 parts in red phosphorus, 35 parts in crystal water aluminium hydroxide, 40 parts of thorough mixing of hydrated magnesium silicate is even, the preparation inorganic combustion inhibitor.And according to following step production flame-retardant lignin fiber.
(1) get the raw materials ready: selecting oil absorbency is 6～8 times of material deadweights, ash oontent less than 8% newsprinting paper as the starting material of producing lignin fibre;
(2) cutting: with being equipped with newsprinting paper be cut into the fragment that width is 9～11mm;
(3) pulverize: fragment is added into shredding unit, pulverizes the back and form lignin fibre, the percent of pass when lignin fibre sieves by 0.15mm is 70 ± 10%;
(4) stir: according to weight percent with lignin fibre: 70%, raising agent: 7.5%, and inorganic combustion inhibitor: 22.5% ratio is added into whipping appts, and raising agent and inorganic combustion inhibitor are uniformly distributed in the lignin fibre;
(5) finished product compression packing: the lignin fibre boil down to bulk after utilizing compressor to stir, vacuum-packed then.
Claims (5)
1. flame-retardant lignin fiber for roads is characterized in that: be made up of with weight percent following raw materials according:
Lignin fibre 60～80%
Raising agent 5～10%
Inorganic combustion inhibitor 15～30%.
2. according to the described a kind of flame-retardant lignin fiber for roads of claim 1, it is characterized in that: described lignin fibre is 6～8 times of material deadweights by oil absorbency, and ash oontent forms less than 8% newsprinting paper cutting.
3. according to the described a kind of flame-retardant lignin fiber for roads of claim 1, it is characterized in that: described raising agent is a carbonate material.
4. according to the described a kind of flame-retardant lignin fiber for roads of claim 1, it is characterized in that: described inorganic combustion inhibitor by red phosphorus, crystal water aluminium hydroxide and hydrated magnesium silicate according to 30～50 parts of weight part ratios: 25～50 parts: 20～40 parts mix.
5. according to the preparation method of the described a kind of flame-retardant lignin fiber for roads of claim 1, it is characterized in that described preparation method comprises the steps:
(1) get the raw materials ready: selecting oil absorbency is 6～8 times of material deadweights, ash oontent less than 8% newsprinting paper as the starting material of producing lignin fibre;
(2) cutting: with being equipped with newsprinting paper be cut into the fragment that width is 9～11mm;
(3) pulverize: fragment is added into shredding unit, pulverizes the back and form lignin fibre, the percent of pass when lignin fibre sieves by 0.15mm is 70 ± 10%;
(4) stir: lignin fibre, raising agent and inorganic combustion inhibitor are added into whipping appts in proportion, raising agent and inorganic combustion inhibitor are uniformly distributed in the lignin fibre;
(5) finished product compression packing: the lignin fibre boil down to bulk after utilizing compressor to stir, vacuum-packed then.
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| CN2010101755566A CN101831192B (en) | 2010-05-18 | 2010-05-18 | Flame-retardant lignin fiber for roads and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107033618A (en) * | 2017-05-22 | 2017-08-11 | 海宁永欣科技咨询有限公司 | A kind of cellulose fiber for road use and preparation method thereof |
| CN107129174A (en) * | 2017-05-19 | 2017-09-05 | 山西宝路加交通科技有限公司 | A kind of lignin fibre |
| CN108795074A (en) * | 2018-06-21 | 2018-11-13 | 滁州市三和纤维制造有限公司 | A kind of preparation method of lignin fibre |
| CN108821629A (en) * | 2018-06-21 | 2018-11-16 | 滁州市三和纤维制造有限公司 | A kind of lignin fibre |
| CN109705600A (en) * | 2018-12-28 | 2019-05-03 | 广州鸿绵合成材料有限公司 | A kind of high-performance ligno cellulose fiber and preparation method |
| CN110550880A (en) * | 2019-09-29 | 2019-12-10 | 淄博金力王工贸有限公司 | Lignin fiber prepared from waste cotton linters and preparation method thereof |
| CN110903491A (en) * | 2019-12-12 | 2020-03-24 | 湖南绿燊环保科技有限公司 | Flame retardant, modified polylactic acid and preparation method thereof |
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| KR100709669B1 (en) * | 2006-09-01 | 2007-04-19 | 김준식 | A compound for concreat and nontoxic concreat using the above compound |
| US20090022974A1 (en) * | 2006-01-27 | 2009-01-22 | Nanodynamics, Inc. | Treated articles and methods of treating articles |
| CN101698749A (en) * | 2009-11-03 | 2010-04-28 | 北京林业大学 | Wood-plastic composite material and prepration method thereof |
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2010
- 2010-05-18 CN CN2010101755566A patent/CN101831192B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090022974A1 (en) * | 2006-01-27 | 2009-01-22 | Nanodynamics, Inc. | Treated articles and methods of treating articles |
| KR100709669B1 (en) * | 2006-09-01 | 2007-04-19 | 김준식 | A compound for concreat and nontoxic concreat using the above compound |
| CN101698749A (en) * | 2009-11-03 | 2010-04-28 | 北京林业大学 | Wood-plastic composite material and prepration method thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129174A (en) * | 2017-05-19 | 2017-09-05 | 山西宝路加交通科技有限公司 | A kind of lignin fibre |
| CN107033618A (en) * | 2017-05-22 | 2017-08-11 | 海宁永欣科技咨询有限公司 | A kind of cellulose fiber for road use and preparation method thereof |
| CN108264255A (en) * | 2017-05-22 | 2018-07-10 | 海宁永欣科技咨询有限公司 | The production method of cellulose fiber for road use |
| CN108795074A (en) * | 2018-06-21 | 2018-11-13 | 滁州市三和纤维制造有限公司 | A kind of preparation method of lignin fibre |
| CN108821629A (en) * | 2018-06-21 | 2018-11-16 | 滁州市三和纤维制造有限公司 | A kind of lignin fibre |
| CN109705600A (en) * | 2018-12-28 | 2019-05-03 | 广州鸿绵合成材料有限公司 | A kind of high-performance ligno cellulose fiber and preparation method |
| CN110550880A (en) * | 2019-09-29 | 2019-12-10 | 淄博金力王工贸有限公司 | Lignin fiber prepared from waste cotton linters and preparation method thereof |
| CN110550880B (en) * | 2019-09-29 | 2021-10-29 | 山东金力王实业有限公司 | Lignin fiber prepared from waste cotton linters and preparation method thereof |
| CN110903491A (en) * | 2019-12-12 | 2020-03-24 | 湖南绿燊环保科技有限公司 | Flame retardant, modified polylactic acid and preparation method thereof |
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| CN101831192B (en) | 2012-04-11 |
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