CN109868555A - Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof - Google Patents
Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof Download PDFInfo
- Publication number
- CN109868555A CN109868555A CN201910196432.7A CN201910196432A CN109868555A CN 109868555 A CN109868555 A CN 109868555A CN 201910196432 A CN201910196432 A CN 201910196432A CN 109868555 A CN109868555 A CN 109868555A
- Authority
- CN
- China
- Prior art keywords
- bast fiber
- cotton stalk
- tetraalkoxysilane
- stalk bast
- geotextiles
- 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
Abstract
The present invention relates to modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof, the modified cotton stalk bast fiber geotextiles of the tetraalkoxysilane are prepared by following raw material: 1 part of tetraalkoxysilane and 10~50 parts of cotton stalk bast fiber.The present invention has the advantages that the modified cotton stalk bast fiber geotextiles flexibility of the tetraalkoxysilane being prepared into through the invention is good, with tension, anti-bursting, tearing toughness, good extending performance, deformation modulus is big, barrier performance is good, the features such as long service life, is widely used in the antiseepages such as water conservancy, dykes and dams, traffic tunnel field.
Description
Technical field
The present invention relates to geotechnical process field, in particular to a kind of modified cotton stalk bast fiber geotechnique of tetraalkoxysilane
Cloth and preparation method thereof.
Background technique
Geosynthetics is a kind of novel geomaterial, it is with artificial synthesized polymer i.e. plastics, changes
Learning fiber, synthetic rubber etc. is raw material, manufactures into various types of products, is placed between inside soil body, surface or each layer soil body,
The effects of playing filtering, draining, isolation, reinforcement, antiseepage, protection.Large water conservancy hydroelectric engineering, high-speed rail, highway, environmental protection neck
Domain, mining industry field, petrochemical industry, municipal field, farming, forestry, husbandary and fishing, ecological afforestation, emerging field (airport construction, sponge city
City's construction, is checked winds and fixed drifting sand at underground pipe gallery) etc. the stability of engineering is greatly improved in engineerings using geotextile material,
Ensure construction quality and using in the case where functional requirement, construction efficiency and construction quality can be improved, in project of South-to-North water diversion
In obtained extensive popularization and application.
Geosynthetics has a wide range of applications in fields such as water conservancy, traffic, environmental protection, is widely used in life again in recent years
Items engineering, the application fields such as state recovery project, coastal engineering, metallurgical mineral products, high-speed railway constantly expand, sponge urban construction,
The novel field such as underground pipe gallery, water environment treatment, rural domestic sewage treatment is that the development of geosynthetics is brought
Vast market prospect.
Studies have shown that about need to increase the cost that original invests 1%~2% using geosynthetics in engineering, and same
Under design standard, 20%~40% project cost can be reduced, economic benefit is very significant.The use of geosynthetics, makes work
Journey materials, recruitment, in terms of all decrease, construction quality and service life are improved, maintenance cost reduce, to mention
The high whole returns of investment of engineering construction, therefore widely people have been received for the importance of geosynthetics.Geotechnique
Synthetic material has become the 4th big New Building Materials after timber, reinforcing bar, cement.
Geotextile material is with artificial synthesized polymer i.e. plastics, chemical fibre, synthetic rubber etc. for raw material at present, one
It is the consumption to fossil energy, second is that these degradation of plastic film are very slow, has secondary pollution to environment, in material source and degradation
On can not be truly realized it is environmentally protective.
Cotton is as a kind of industrial crops, and in China, cultivated area is larger, especially in Xinjiang region.Cotton is as seed
Fiber has been assigned the indispensable use value of the people's livelihood, be Xinjiang white pillar industry and peasant receive people important sources,
But cotton stalk then as waste combustion or is stacked at the edge of a field.With the development of science and technology people want to develop and utilize cotton stalk always
Skin is once used for papermaking.In the today for developing environmentally protective resource, circular economy concept is increasingly reinforced, to the benefit of cotton stalk skins
It is developed with multipath is used, wherein just turn waste into wealth well as one to the development and utilization of cotton stalk bast fiber resource
Mode.
Cotton stalk bast fiber be by cotton stalk by " cotton stalk core-skin seperator " it is isolated, cotton stalk bast fiber belongs to sclerderm
Fiber is similar to flaxen fiber, has the characteristics that tension, anti-bursting, tearing toughness is strong, good extending performance and deformation modulus are big.
Cotton stalk bast fiber prepares cotton stalk bast fiber geotextile material by techniques such as shredding, one needle of dry-laying thorn consolidations, has
Environmentally protective function.But there is presently no similar applications.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of modified cotton stalk bast fiber geotextiles of tetraalkoxysilane and
Preparation method, the geotextiles flexibility prepared is good, has tension, anti-bursting, tearing toughness, good extending performance, deformation
The features such as modulus is big, and barrier performance is good, long service life.
In order to solve the above technical problems, the technical solution of the present invention is as follows: a kind of modified cotton stalk bast of tetraalkoxysilane is fine
Geotextiles are tieed up, innovative point is: being prepared by following raw material: 1 part of tetraalkoxysilane and 10~50 parts
Cotton stalk bast fiber.
Further, it is the cotton stalk bast fiber of 9mm~15mm that the cotton stalk bast fiber, which selects length,.
It is a further object to provide a kind of preparations of the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane
Method, innovative point are: the preparation method includes the following steps:
Step 1: according to each raw material proportioning, weighing the cotton stalk bast fiber and tetraalkoxysilane of corresponding parts by weight；
Step 2: cotton stalk bast fiber weighed in step 1 is prepared into cotton by shredding and one needle of dry-laying thorn consolidation technique
Stalk bast fiber geotextiles；
Step 3: tetraalkoxysilane weighed in step 1 is configured to the tetraalkoxy silicon that mass percentage concentration is 10~40%
Then tetraalkoxysilane solution is uniformly sprayed to the cotton stalk bast fiber Geotextile being prepared into step 2 by alkane solution,
It is finally placed at room temperature for 11~13h, the modified cotton stalk bast fiber geotextiles finished product of tetraalkoxysilane can be obtained.
Further, cotton stalk bast fiber passes through shredding in the step 2, until the degree of opening > 50% of cotton stalk bast fiber.
The present invention has the advantages that the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane of the present invention and its preparation side
Method, since cotton bast fiber volume is excessive, water-swellable rate is big, while fiber conglomeration in artificial concrete substrate, coagulation
Soil cannot covered fiber well；And then fiber cannot give full play to humidification, macroscopically show as sample coefficient of softing
It reduces, therefore, surface coating modification is carried out to cotton stalk bast fiber using tetraalkoxysilane, it is fine to be remarkably improved cotton stalk bast
Dimension/concrete mechanical property and water resistance；Meanwhile the weight ratio of tetraalkoxysilane and cotton stalk bast fiber be 1:50~
1:10, tetraalkoxysilane are made into the solution that mass percentage concentration is 10~40% and are sprayed, and tetraalkoxysilane is met in air
Steam is hydrolyzed into nano silica to modify geotextile material；Thus the modified cotton stalk bast of the tetraalkoxysilane being prepared into is fine
It is good to tie up geotextiles flexibility, there is tension, anti-bursting, tearing toughness, good extending performance, deformation modulus is big, and barrier performance is good,
The features such as long service life, is widely used in the antiseepages such as water conservancy, dykes and dams, traffic tunnel field.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment 1
The preparation method of the modified cotton stalk bast fiber geotextiles of the present embodiment tetraalkoxysilane, the preparation method include following step
It is rapid:
Step 1: according to each raw material proportioning, the length for weighing 10 parts by weight is the cotton stalk bast fiber of 9mm and four alkane of 1 parts by weight
Oxysilane；
Step 2: cotton stalk bast fiber weighed in step 1 is passed through into shredding, until the degree of opening > 50% of cotton stalk bast fiber, so
The cotton stalk bast fiber after shredding pierces consolidation technique by one needle of dry-laying and is prepared into cotton stalk bast fiber geotextiles afterwards；
Step 3: tetraalkoxysilane weighed in step 1 is configured to the tetraalkoxysilane second that mass percentage concentration is 10%
Then tetraalkoxysilane ethanol solution is uniformly sprayed to the cotton stalk bast fiber geotextiles being prepared into step 2 by alcoholic solution
Surface is finally placed at room temperature for 12h, can obtain the modified cotton stalk bast fiber geotextiles finished product of tetraalkoxysilane.
Embodiment 2
The preparation method of the modified cotton stalk bast fiber geotextiles of the present embodiment tetraalkoxysilane, the preparation method include following step
It is rapid:
Step 1: according to each raw material proportioning, weigh 20 parts by weight the length cotton stalk bast fiber for being 12mm and 1 parts by weight four
Alkoxy silane；
Step 2: cotton stalk bast fiber weighed in step 1 is passed through into shredding, until the degree of opening > 50% of cotton stalk bast fiber, so
The cotton stalk bast fiber after shredding pierces consolidation technique by one needle of dry-laying and is prepared into cotton stalk bast fiber geotextiles afterwards；
Step 3: tetraalkoxysilane weighed in step 1 is configured to the tetraalkoxysilane second that mass percentage concentration is 20%
Then tetraalkoxysilane ethanol solution is uniformly sprayed to the cotton stalk bast fiber geotextiles being prepared into step 2 by alcoholic solution
Surface is finally placed at room temperature for 12h, can obtain the modified cotton stalk bast fiber geotextiles finished product of tetraalkoxysilane.
Embodiment 3
The preparation method of the modified cotton stalk bast fiber geotextiles of the present embodiment tetraalkoxysilane, the preparation method include following step
It is rapid:
Step 1: according to each raw material proportioning, weigh 40 parts by weight the length cotton stalk bast fiber for being 15mm and 1 parts by weight four
Alkoxy silane；
Step 2: cotton stalk bast fiber weighed in step 1 is passed through into shredding, until the degree of opening > 50% of cotton stalk bast fiber, so
The cotton stalk bast fiber after shredding pierces consolidation technique by one needle of dry-laying and is prepared into cotton stalk bast fiber geotextiles afterwards；
Step 3: tetraalkoxysilane weighed in step 1 is configured to the tetraalkoxysilane second that mass percentage concentration is 40%
Then tetraalkoxysilane ethanol solution is uniformly sprayed to the cotton stalk bast fiber geotextiles being prepared into step 2 by alcoholic solution
Surface is finally placed at room temperature for 12h, can obtain the modified cotton stalk bast fiber geotextiles finished product of tetraalkoxysilane.
In the various embodiments described above, as soon as since dry-laying needle thorn consolidation technique is known process, herein without detailed
Description.
Take the geotextiles being prepared by embodiment 1-3, detection performance；And take conventional geotextiles conduct available on the market
Control group, detection performance；Testing result is as follows:
As can be seen from the above table, the modified cotton stalk bast fiber geotextiles flexibility of the tetraalkoxysilane being prepared into through the invention
It is good, there is tension, anti-bursting, tearing toughness, good extending performance, deformation modulus is big, and barrier performance is good, the spies such as long service life
Point is widely used in the antiseepages such as water conservancy, dykes and dams, traffic tunnel field.
Embodiment 4
The modified cotton stalk bast fiber geotextiles of tetraalkoxysilane that embodiment 1-3 is prepared are doped into same specification respectively
Concrete sample in, and compared with the concrete sample undoped with the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane,
Compressive resistance improves coefficient, and the result is shown in following tables:
As can be seen from the above table, the modified cotton stalk bast fiber geotextiles of the tetraalkoxysilane that the present invention is prepared into, this material
When volume is the 2~4% of concrete quality, the flexural strength of concrete can be significantly improved, the concrete sample with non-adding of fiber
It compares, compressive resistance is increased to 30-38%；Therefore the optimum length of cotton stalk fiber is 9mm~15mm, the optimum mix amount 3%；With
The increase of fibers content, cotton stalk bast fiber/concrete block flexural strength is gentle after first increasing, and compression strength always under
Drop；When fibers content is less than 2%, since fiber itself has the characteristics that anti-folding, compression strength retention rate are high after absorbing water, and cause
Still there is preferable reinforcing effect in concrete, when fibers content is greater than 4%, Strength Changes are little.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (4)
1. a kind of modified cotton stalk bast fiber geotextiles of tetraalkoxysilane, it is characterised in that: prepared by following raw material
It forms: 1 part of tetraalkoxysilane and 10~50 parts of cotton stalk bast fiber.
2. the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane according to claim 1, it is characterised in that: the cotton
It is the cotton stalk bast fiber of 9mm~15mm that stalk bast fiber, which selects length,.
3. a kind of preparation method of the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane described in claim 1, feature
Be: the preparation method includes the following steps:
Step 1: according to each raw material proportioning, weighing the cotton stalk bast fiber and tetraalkoxysilane of corresponding parts by weight；
Step 2: cotton stalk bast fiber weighed in step 1 is prepared into cotton by shredding and one needle of dry-laying thorn consolidation technique
Stalk bast fiber geotextiles；
Step 3: tetraalkoxysilane weighed in step 1 is configured to the tetraalkoxy silicon that mass percentage concentration is 10~40%
Then tetraalkoxysilane solution is uniformly sprayed to the cotton stalk bast fiber Geotextile being prepared into step 2 by alkane solution,
It is finally placed at room temperature for 11~13h, the modified cotton stalk bast fiber geotextiles finished product of tetraalkoxysilane can be obtained.
4. the preparation method of the modified cotton stalk bast fiber geotextiles of tetraalkoxysilane according to claim 3, feature
Be: cotton stalk bast fiber passes through shredding in the step 2, until the degree of opening > 50% of cotton stalk bast fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196432.7A CN109868555A (en) | 2019-03-15 | 2019-03-15 | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196432.7A CN109868555A (en) | 2019-03-15 | 2019-03-15 | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109868555A true CN109868555A (en) | 2019-06-11 |
Family
ID=66920507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910196432.7A Pending CN109868555A (en) | 2019-03-15 | 2019-03-15 | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109868555A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743526A (en) * | 2005-09-21 | 2006-03-08 | 天维纺织科技(深圳)有限公司 | Cotton stalk fiber non-woven cloth and its processing method |
| CN1814881A (en) * | 2006-03-02 | 2006-08-09 | 陈绍华 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
| JP2011241388A (en) * | 2010-04-23 | 2011-12-01 | Mitsubishi Rayon Co Ltd | Aqueous coating material |
| CN105143144A (en) * | 2013-04-23 | 2015-12-09 | 力多科股份有限公司 | Process for the treatment of cellulose fibers |
| CN105934482A (en) * | 2013-12-03 | 2016-09-07 | 蓝星有机硅法国两合公司 | Silicone composition that can be cured in presence of water or atmospheric moisture |
| CN108978030A (en) * | 2017-06-01 | 2018-12-11 | 无锡市振基土工材料有限公司 | A kind of production technology of degradable geotextile |
-
2019
- 2019-03-15 CN CN201910196432.7A patent/CN109868555A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1743526A (en) * | 2005-09-21 | 2006-03-08 | 天维纺织科技(深圳)有限公司 | Cotton stalk fiber non-woven cloth and its processing method |
| CN1814881A (en) * | 2006-03-02 | 2006-08-09 | 陈绍华 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
| JP2011241388A (en) * | 2010-04-23 | 2011-12-01 | Mitsubishi Rayon Co Ltd | Aqueous coating material |
| CN105143144A (en) * | 2013-04-23 | 2015-12-09 | 力多科股份有限公司 | Process for the treatment of cellulose fibers |
| CN105934482A (en) * | 2013-12-03 | 2016-09-07 | 蓝星有机硅法国两合公司 | Silicone composition that can be cured in presence of water or atmospheric moisture |
| CN108978030A (en) * | 2017-06-01 | 2018-12-11 | 无锡市振基土工材料有限公司 | A kind of production technology of degradable geotextile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bederina et al. | Improvement of the properties of a sand concrete containing barley straws–treatment of the barley straws | |
| Long et al. | Effect of pine needle fibre reinforcement on the mechanical properties of concrete | |
| Awwad et al. | Preliminary studies on the use of natural fibers in sustainable concrete | |
| CN103130460A (en) | Vegetation type steel slag polyporous concrete, preparation method thereof and application | |
| CN108277012A (en) | A kind of soil-solidified-agent and its application | |
| CN110317008A (en) | A kind of plant cover concrete and the preparation method and application thereof | |
| CN106590207A (en) | Novel waterproof two-component slurry for buildings and preparation method of novel waterproof two-component slurry | |
| Liu et al. | Investigation of cotton straw fibers for asphalt mixtures | |
| Abdalla et al. | A comprehensive review on the use of natural fibers in cement/geopolymer concrete: A step towards sustainability | |
| Awwad et al. | Sustainable construction material using hemp fibers–preliminary study | |
| CN109369061A (en) | A kind of pervious concrete additive and pervious concrete | |
| CN108929076A (en) | A kind of crack resistance type rubber powder fiber cement stabilized macadam base material | |
| Hospodarova et al. | Possibilities of using cellulose fibres in building materials | |
| CN109868555A (en) | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof | |
| CN101607800B (en) | Cellulose fiber for road use and method for preparing same | |
| Feng et al. | Mechanical properties of dredged soil reinforced by xanthan gum and fibers | |
| CN109466154A (en) | A kind of manufacturing method of cement-base composite material | |
| CN104591664B (en) | Long-life concrete for steel-mixed combination beam hogging moment area and preparation method thereof | |
| Hasan et al. | Assessment of the rheological and mechanical properties of palmyra fruit mesocarp fibre reinforced eco-friendly concrete | |
| Kshatriya et al. | Use and development of jute fibre in reinforced cement concrete grade M40 | |
| Kolour | An investigation on the effects of cellulose nanofibrils on the performance of cement based composites | |
| Parcesepe et al. | Assessment of Mechanical and Thermal Properties of Hemp-Lime Mortar. Materials 2021, 14, 882 | |
| Krishna et al. | Experimental investigation of fiber reinforced concrete using septage ash | |
| Liu et al. | Performance of granite asphalt mixture modified by silane coupling agent | |
| Ziane et al. | Experimental Study on the Durability Characteristics of Several Vegetable Fiber Reinforced Concretes Exposed to Sodium Sulfate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |