CN210959694U - Agricultural full-biodegradable composite non-woven fabric - Google Patents
Agricultural full-biodegradable composite non-woven fabric Download PDFInfo
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- CN210959694U CN210959694U CN201921922018.1U CN201921922018U CN210959694U CN 210959694 U CN210959694 U CN 210959694U CN 201921922018 U CN201921922018 U CN 201921922018U CN 210959694 U CN210959694 U CN 210959694U
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Abstract
The utility model relates to an agricultural full biodegradable composite non-woven fabric, it is including fluffy first degradable non-woven fabrics layer of form upper epidermis, the lower top layer on first degradable non-woven fabrics layer set up first biochar layer, second biochar layer respectively, and each intraformational biochar granule of biochar is equallyd divide and is do not implanted adjacently carry out the gomphosis in the fibre web hole on first degradable non-woven fabrics layer and connect, be provided with on first biochar layer and connect second degradable non-woven fabrics layer through the adhesive layer, and be provided with under the second biochar layer and connect the square grammes per square metre to be 12-20g/m through the adhesive layer2The moisture-retaining fiber layer of (1). The moisture-keeping fiber layer is a cellulose fiber layer, and the first degradable non-woven fabric layer has a square gram weight of 15-18g/m2The second degradable non-woven fabric layer is a non-woven fabric layer with the square gram weight of 10-16g/m2The degradable spunbond nonwoven layer of (a).
Description
Technical Field
The utility model belongs to the technical field of agricultural film, concretely relates to agricultural full biodegradable composite non-woven fabric.
Technical Field
In the existing agricultural planting, an agricultural plastic film, namely an agricultural film, is usually covered above the plants, and at present, the agricultural film is mainly made of polyethylene, polyester or polypropylene and the like through blow molding and extrusion blowing of a plastic mold.
However, the agricultural film is easy to damage and difficult to recycle in use and is usually directly discarded in the field, most of polyethylene, polyester or polypropylene and other materials cannot be degraded in the natural environment, and the plastics can not be degraded in the field for decades, so that a series of soil problems are caused.
Meanwhile, the agricultural film is used for providing a heat-preservation and moisture-preservation environment for plant growth, but bacteria are easy to breed, and partial plants are not good in growth.
Based on the technical problems of the existing agricultural film, the development of the degradable agricultural film becomes urgent, and the development of the degradable green agricultural film in the natural environment has very important significance for solving the problem of environmental pollution caused by the agricultural film.
Compared with the plastic, polylactic acid (P L A) non-woven fabric, cellulose fiber and the like are biodegradable, belong to biodegradable materials, and decomposed products and residues thereof have no harm to the environment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the agricultural film difficult degradation that exists among the prior art, the utility model provides an agricultural full biodegradable composite non-woven fabric that can natural degradation, green pollution-free, this composite non-woven fabric not only plays the effect of heat preservation, moisturizing in the vegetation in-process, can be again in its biodegradable in-process, and biochar can provide necessary nutrient for vegetation.
The utility model discloses and realize through following technical scheme:
agricultural full biodegradable composite non-woven fabric include fluffy first degradable non-woven fabrics layer first biodegradable non-woven fabrics layer, lower top layer set up first biological charcoal layer, second biological charcoal layer respectively, the intraformational biochar granule of each biological charcoal is equallyd divide and is planted respectively adjacently carry out the gomphosis in the fibre web hole of first degradable non-woven fabrics layer and connect, be provided with on first biological charcoal layer and connect second degradable non-woven fabrics layer through the adhesive layer, and be provided with below the second biological charcoal layer and connect the fibrous layer of moisturizing through the adhesive layer.
Further, the first degradable non-woven fabric layer is a degradable hot air non-woven fabric layer, and the second degradable non-woven fabric layer is a degradable spun-bonded non-woven fabric layer.
Further, the degradable hot air non-woven fabric layer and the degradable spun-bonded non-woven fabric layer are both a polylactic acid fiber mesh layer or a chitosan fiber mesh layer.
Further, the square gram weight of the degradable hot air non-woven fabric layer is 15-18g/m2(ii) a The square gram weight of the degradable spunbonded nonwoven fabric layer is 10-16g/m2。
Further, the moisture-retaining fiber layer is a cellulose fiber layer, and the square gram weight of the moisture-retaining fiber layer is 12-20g/m2。
Further, the adhesive layer is a biodegradable pressure-sensitive adhesive or a degradable modified polyvinyl alcohol adhesive.
Furthermore, the distribution density of the first biochar layer and the second biochar layer is 8-20g/m2。
The utility model discloses the beneficial effect who realizes does: the utility model discloses can natural degradation, green pollution-free not only plays the effect that keeps warm, moisturize in the vegetation in-process, can provide necessary nutrient for vegetation at its biodegradable in-process charcoal again.
Drawings
Fig. 1 is a schematic structural diagram of an agricultural full-biodegradable composite non-woven fabric.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The PBAT of the utility model is poly terephthalic acid-succinic acid-1, 4-butanediol copolyester, P L A is polylactic acid, and PC L is polycaprolactone.
Referring to the attached fig. 1, the agricultural full-biodegradable composite non-woven fabric of the present invention includes a second degradable non-woven fabric layer 4, a moisture-keeping fiber layer 1, and a first degradable non-woven fabric layer 3 located between the second degradable non-woven fabric layer 4 and the moisture-keeping fiber layer 1. On this basis, a biochar layer 2 is further provided between the first degradable nonwoven fabric layer 3 and the adjacent second degradable nonwoven fabric layer 4, and between the first degradable nonwoven fabric layer 3 and the adjacent moisture-retaining fiber layer 1, respectively. And is carried out by the following way:
the agricultural full-biodegradable composite non-woven fabric comprises a fluffy first degradable non-woven fabric layer 3, wherein the upper surface layer and the lower surface layer of the first degradable non-woven fabric layer 3 are respectively provided with a first biochar layer 22 and a second biochar layer 21, and the distribution densities of the first biochar layer and the second biochar layer are 8-20g/m2. Each biological carbonThe biological carbon particles in the layer are respectively implanted into the fiber mesh pores of the adjacent first degradable non-woven fabric layers for embedded connection, the second degradable non-woven fabric layer 4 is connected with the first biological carbon layer 22 through the adhesive layer 5, and the moisturizing fiber layer 1 is connected with the second biological carbon layer 21 through the adhesive layer 5.
Specifically, the first degradable non-woven fabric layer 3 is a degradable hot air non-woven fabric layer made of a polylactic acid fiber mesh layer or a chitosan fiber mesh layer, and the square gram weight of the degradable hot air non-woven fabric layer is 15-18g/m2. The second degradable non-woven fabric layer 4 is a degradable spunbonded non-woven fabric layer made of a polylactic acid fiber mesh layer or a chitosan fiber mesh layer, and the square gram weight of the degradable spunbonded non-woven fabric layer is 10-16g/m2。
Specifically, the moisture-retaining fiber layer is a cellulose fiber layer with the square gram weight of 12-20g/m2。
Specifically, the adhesive layer is a biodegradable pressure-sensitive adhesive or a degradable modified polyvinyl alcohol adhesive. These degradable adhesives are selected from the group consisting of biodegradable pressure sensitive adhesives provided in the prior art, such as application No. 201710462822.5, and degradable modified polyvinyl alcohol adhesives provided in the prior art, such as application No. 201910124729.2.
The utility model discloses an agricultural non-woven fabric's natural degradation, to the ecological green pollution-free of environment, not only play the effect of heat preservation, moisturizing at the vegetation in-process, can provide necessary nutrient for vegetation at its biodegradation in-process biochar again.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. An agricultural full-biodegradable composite non-woven fabric is characterized in that: the composite non-woven fabric comprises a fluffy first degradable non-woven fabric layer, wherein the upper surface layer and the lower surface layer of the first degradable non-woven fabric layer are respectively provided with a first biological carbon layer and a second biological carbon layer, biological carbon particles in each biological carbon layer are respectively implanted into the adjacent fiber mesh pores of the first degradable non-woven fabric layer for embedding connection, the first biological carbon layer is provided with a second degradable non-woven fabric layer connected with the second biological carbon layer through an adhesive layer, and the second biological carbon layer is provided with a moisture-preserving fiber layer connected with the moisture-preserving fiber layer through the adhesive layer.
2. The agricultural fully biodegradable composite nonwoven fabric according to claim 1, characterized in that: the first degradable non-woven fabric layer is a degradable hot air non-woven fabric layer, and the second degradable non-woven fabric layer is a degradable spun-bonded non-woven fabric layer.
3. The agricultural fully biodegradable composite nonwoven fabric according to claim 2, characterized in that: the degradable hot air non-woven fabric layer and the degradable spun-bonded non-woven fabric layer are both a polylactic acid fiber net layer or a chitosan fiber net layer.
4. The agricultural full biodegradable composite non-woven fabric according to claim 2 or 3, wherein: the square gram weight of the degradable hot air non-woven fabric layer is 15-18g/m2(ii) a The square gram weight of the degradable spunbonded nonwoven fabric layer is 10-16g/m2。
5. The agricultural fully biodegradable composite nonwoven fabric according to claim 1, characterized in that: the moisture-keeping fiber layer is a cellulose fiber layer with the square gram weight of 12-20g/m2。
6. The agricultural fully biodegradable composite nonwoven fabric according to claim 1, characterized in that: the adhesive layer is a biodegradable pressure-sensitive adhesive or a degradable modified polyvinyl alcohol adhesive.
7. The agricultural fully biodegradable composite nonwoven fabric according to claim 1, characterized in that: the distribution density of the first biochar layer and the second biochar layer is 8-20g/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922018.1U CN210959694U (en) | 2019-11-08 | 2019-11-08 | Agricultural full-biodegradable composite non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922018.1U CN210959694U (en) | 2019-11-08 | 2019-11-08 | Agricultural full-biodegradable composite non-woven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210959694U true CN210959694U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921922018.1U Active CN210959694U (en) | 2019-11-08 | 2019-11-08 | Agricultural full-biodegradable composite non-woven fabric |
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| CN (1) | CN210959694U (en) |
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- 2019-11-08 CN CN201921922018.1U patent/CN210959694U/en active Active
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