CN1814881A - Degradeable regenerative cellulose fiber earthwork cloth and its working technique - Google Patents
Degradeable regenerative cellulose fiber earthwork cloth and its working technique Download PDFInfo
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- CN1814881A CN1814881A CN200610024314.0A CN200610024314A CN1814881A CN 1814881 A CN1814881 A CN 1814881A CN 200610024314 A CN200610024314 A CN 200610024314A CN 1814881 A CN1814881 A CN 1814881A
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Abstract
This invention relates to geotextiles made of degradable regenerated fibrin fibres and its preparation method characterizing in applying regenerated fibrin fibres as the raw materials, utilizing the properties of regenerated fibrin fibers of ordinary low strength, low humid modulus and new types of high strength and high humid modulus and fibers with good biodegradation and ecological type to process them to yarn of pure spinning or blend spinning and geotextile of fabric or non-fabric structure and geotextiles of compound or combination structure made of these materials.
Description
Technical field the present invention relates to geotextiles and the process technology in the geosynthetics.
Geotextiles in the geosynthetics of the present prior art of background technology, it all is to be formed by the high molecular polymer synthetic fiber, the materials processing that are base stock with oil gas that a little materials of such as woven cloth, woven cloth, chopped fiber needle-punched non-weaving cloth, long filament spun-bonded non-woven are arranged, have physical properties such as brute force is high, extension is little and geotechnique, water conservancy project characteristic, be widely used as engineerings such as isolation, anti-filter, brace.Wherein most stable is good, is difficult for degraded; Also there are uvioresistant and non-oxidizability poor, easily aging, not only can loss of function, and all can become the harmful substance contaminated environment, can not be suitable for for some engineerings that have the particular surroundings protection to need.And but biological degradation polyalcohol is as a kind of material of natural degradation, playing unique its research and development of effect aspect environmental protection is developed just rapidly, but major part still concentrates on disposable plastic obsolete material aspects such as packing, container, and the degradable polymer material that is used to weave, geotextiles product and technology especially for the required environment-friendly type of specific engineering are not mentioned agenda as yet, also are in the blank stage.Common traditional regenerated celulose fibre is because dried, wet low by force, and particularly wet modulus is very low, and is yielding when hygrometric state, for a long time as the geotextiles raw material.
Summary of the invention task of the present invention provides a kind of degradable geotextiles and process technology; this geotextiles is used geotextiles physics and geotechnological, the water conservancy project technical performance that can keep designing requirement effectively in construction; and can be in natural environment after construction is finished than in short-term complete biodegradable; free from environmental pollution, satisfy requirement of engineering to the environmental protection specific (special) requirements.
The purpose Shi sample of this invention is realized:a kind of degradable geotextile, its technical characterictic is that the employing regenerated celulose fibre is raw material processing, utilize common traditional hanging down by force, low wet modulus regenerated celulose fibre and novel high-strength, the characteristic separately of high wet modulus regenerated celulose fibre and biodegradable reach the denominator of environmental fiber well, carry out simple selectively or be used in combination, technical indicator according to the engineering design requirement, use the regenerated celulose fibre of different performance, spin or yarn is processed in the blending of different proportion, fabric construction or non-weaving cloth structure geotextiles with pure; Yi is Ji the composite earthwork cloth of the stitching that a little materials of are formed, bonding (nontoxic bonding agent), acupuncture composite construction and with the non-woven geotextile of yarn through volume, loop bonding combining structure.
The degradability of polymer is relevant with the chemical constitution of material, and the polymer chemistry structural polymer is as " synthetic plastic ", " synthetic fiber ", and degradability is low, and its degree of crystallinity and crystal grain are big, so degradation rate is low; And opposite degraded structural polymer with it, as cellulose, degradability height, degradation rate are also high, can make biodegradable plastic.Because the present invention adopts the string of natural tubbiness as base stock, be processed into the environmental regenerated celulose fibre of nonhazardous through machinery and chemical method, has the high characteristic of natural polymer biodegradable, after finishing service life, in soil and water, can be played the microorganism of biodegradation, comprise fungi, mould, algae, biophysics effect, biological chemistry action and enzyme take place directly to be acted on, split into the diffusing sheet of oligomer, be hydrolyzed into original monomer, finally become carbon dioxide and water, do not pollute the environment.The speed of its degraded, except that the influence of the factor of natural environment of job site, the composite request of physics, water conservancy project index and degradation speed that can be by geotextiles is set the quality of geotextiles unit are and is come control degradation speed, and the degradation time that the big specific mass of quality is little will be grown.Because dried, the wet brute force and the wet modulus of common traditional regenerated celulose fibre are very low, in order to improve the physical technique performance of geotextiles, adopt the powerful height of doing, wet, elongation is low and the novel regenerated celulose fibre of the high wet modulus that puffed degree is little, the Newcell fiber of the Tencel fiber of polynosic, Britain, Austrian Ly-ocell fiber, Germany etc. is wherein arranged, combine with novel high-strength, high wet modulus regenerated celulose fibre with common traditional regenerated celulose fibre, become degradable geotextile with multi-form textural association processes.Such regenerative cellulose fiber earthwork cloth and the Stability Analysis of Structures that has a large capacity and a wide range at present and use, corrosion resistance is strong, natural degradation will reach the polyester fiber geotextiles of 200-300, easily the aging polypropylene fibre geotextiles that becomes harmful substance is compared, both had close physics and geotechnique, water conservancy project technical performance, but it is good to have the natural biology degradability again, the characteristic that degradation rate is high.Owing to can process with common traditional regenerated celulose fibre combination, not only reduced the cost of product, also can utilize common traditional regenerated celulose fibre resource fully.Because the regeneration that this degradable regenerative cellulose fiber earthwork cloth raw material is a pure natural fiber becomes the environmental fiber of nonhazardous; use and the overall process of degrading in be nonhazardous, can be used for geotechnological, hydraulic engineerings such as Wetland ecological protection that the protection of special natural ecological environment requires, river course, drinking water source.
Specific embodiment the following stated embodiment describes the present invention in detail.
Embodiment 1 Tencel fiber, with viscose with the Genus regenerated celulose fibre, be that essential pulp based on coniferous tree is the new cellulose fiber that raw material is regenerated, have close with polyester fiber, higher doing is strong, wet strong, dried, wet modulus is better than polyester fiber, and is a kind of biodegradable environmental fiber.Be processed into the needling non-woven geotextiles with pure the spinning of this staple fibre, can be used as isolation, anti-filter, brace geotechnique material.
Embodiment 2 Tencel fibers, performance classes is processed into woven geotextile with " embodiment 1 " with pure spinning of staple fibre or endless tow, can be used as isolation, brace geotechnique material, and the scrim material of non-woven geotextile reinforcement.
Embodiment 3 common viscose staple fibres are to be the cellulose fibre of raw material regeneration with wood, the cotton pulp dregs of rice, a kind of biodegradable chemical fibre, do, wet powerful, wet modulus is low.Be processed into needling non-woven soil handwoven cloth with pure the spinning of this staple fibre, can be used as low modulus and isolate, instead filter geotechnological material.
Embodiment 4 Tencel staple fibres, performance classes is with " embodiment 1 "; Common viscose staple fibre, performance classes is with " embodiment 3 "; These two kinds of fibers are processed into the needling non-woven geotextiles with the blending ratio of setting (for example each is with 50%), can be used as isolation, instead filter geotechnological material.Performance is higher than " embodiment 3 ", is lower than " embodiment 1 ".
One of embodiment 5 most preferred embodiments, non-woven geotextile with two width of cloth " embodiment 1 " is respectively upper and lower layer, the woven geotextile of therebetween one width of cloth " embodiment 2 " is the intermediate layer, carry out acupuncture with upper and lower nonwoven needled machine and be combined into degradable regenerative cellulose fibre (compound) geotextiles, can be used as high-strength isolation, anti-filter, brace geotechnique material.
Claims (4)
1. the geotextiles of present prior art all is to be formed by the high molecular polymer synthetic fiber, the materials processing that are base stock with oil gas, has physical properties such as brute force is high, extension is little and geotechnique, water conservancy project characteristic, and most good stabilities are difficult for degrading; Also there are uvioresistant and non-oxidizability poor, easily aging, can become the harmful substance contaminated environment, a kind of degradable geotextile and process technology, its technical characterictic is that the employing regenerated celulose fibre is raw material processing, utilize common low strong, low wet modulus regenerated celulose fibre and novel high-strength, characteristic separately of high wet modulus regenerated celulose fibre and the denominator that biodegradable reaches environmental fiber well, carry out simple selectively or be used in combination, be processed into yarn, fabric construction or non-weaving cloth structure geotextiles; Yi is Ji the geotextiles of the composite construction that a little materials of are formed and the non-woven geotextile of combining structure; Be used to have the engineering such as geotechnique, water conservancy of environmental protection needs.
2. to be that the regenerated celulose fibre of different performance is pure spin or blending for degradable regenerative cellulose fibre geotextiles according to claim 1 and process technology, its technical characterictic.
3. according to claim 1,2 described degradable regenerative cellulose fibre composite construction geotextiles and process technologies, its technical characterictic be sew up, bonding (nontoxic bonding agent), acupuncture is compound.
4. according to claim 1,2 described degradable regenerative cellulose fibre combining structure non-woven geotextile and process technologies, its technical characterictic with yarn through compile, loop bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610024314.0A CN1814881A (en) | 2006-03-02 | 2006-03-02 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610024314.0A CN1814881A (en) | 2006-03-02 | 2006-03-02 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
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| CN1814881A true CN1814881A (en) | 2006-08-09 |
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| CN200610024314.0A Pending CN1814881A (en) | 2006-03-02 | 2006-03-02 | Degradeable regenerative cellulose fiber earthwork cloth and its working technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224293A (en) * | 2013-03-06 | 2013-07-31 | 李玉刚 | Artificial subsurface flow wetland and rapid maturity effectiveness method thereof |
| CN108360536A (en) * | 2018-01-30 | 2018-08-03 | 河南工程学院 | A kind of anti-aging plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN108385272A (en) * | 2018-01-30 | 2018-08-10 | 河南工程学院 | A kind of high intensity plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN109295607A (en) * | 2017-07-24 | 2019-02-01 | 无锡市振基土工材料有限公司 | A kind of warp knit composite earthwork cloth and preparation method thereof |
| CN109868555A (en) * | 2019-03-15 | 2019-06-11 | 江苏工程职业技术学院 | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof |
-
2006
- 2006-03-02 CN CN200610024314.0A patent/CN1814881A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224293A (en) * | 2013-03-06 | 2013-07-31 | 李玉刚 | Artificial subsurface flow wetland and rapid maturity effectiveness method thereof |
| CN109295607A (en) * | 2017-07-24 | 2019-02-01 | 无锡市振基土工材料有限公司 | A kind of warp knit composite earthwork cloth and preparation method thereof |
| CN108360536A (en) * | 2018-01-30 | 2018-08-03 | 河南工程学院 | A kind of anti-aging plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN108385272A (en) * | 2018-01-30 | 2018-08-10 | 河南工程学院 | A kind of high intensity plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
| CN109868555A (en) * | 2019-03-15 | 2019-06-11 | 江苏工程职业技术学院 | Modified cotton stalk bast fiber geotextiles of a kind of tetraalkoxysilane and preparation method thereof |
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