CN212236352U - High-strength and high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material - Google Patents
High-strength and high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material Download PDFInfo
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- CN212236352U CN212236352U CN201922139626.1U CN201922139626U CN212236352U CN 212236352 U CN212236352 U CN 212236352U CN 201922139626 U CN201922139626 U CN 201922139626U CN 212236352 U CN212236352 U CN 212236352U
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Abstract
The invention discloses a high-strength high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material which structurally comprises three layers, wherein two layers of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) non-woven materials and one layer of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) woven fabric are arranged between the two layers of non-woven materials; the two layers of non-woven materials consist of skin-core structure poly 3-hydroxybutyrate-co-3-hydroxyvalerate short fibers, and the two layers of non-woven materials are needle-punched heat bonding non-woven materials; the woven fabric consists of a sheath-core structure poly 3-hydroxybutyrate-co-3-hydroxyvalerate monofilament; the nonwoven and woven fabrics are joined together by needling and thermal bonding. The high-strength high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material can be widely applied to the fields of air and water filtration and the like.
Description
Technical Field
The invention relates to the field of textiles, in particular to a high-strength and high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material.
Background
Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a non-petroleum-based thermoplastic polyester material synthesized by microbial fermentation, and the resource of the poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is renewable, biodegradable, melt-processable and similar to polypropylene in performance. Can be used as a raw material of synthetic fiber to solve the problems of resource shortage, environmental pollution and the like faced by the development of the synthetic fiber. However, no PHBV filter material is reported at present.
SUMMERY OF THE UTILITY MODEL
The invention aims to develop a high-strength high-efficiency PHBV filter material aiming at the problem of loss of the high-strength high-efficiency PHBV filter material.
The structure of the high-strength high-efficiency PHBV filter material comprises three layers, namely two layers of PHBV non-woven materials and one layer of PHBV woven fabric, wherein the PHBV woven fabric is positioned between the two layers of PHBV non-woven materials; the two layers of PHBV non-woven materials consist of skin-core structure PHBV short fibers, and the two layers of PHBV non-woven materials are needle-punched heat-bonded non-woven materials; the PHBV woven fabric is composed of a skin-core structure PHBV monofilament; the nonwoven and woven fabrics are joined together by needling and thermal bonding.
The high-strength high-efficiency PHBV filter material is characterized in that when a core layer raw material of skin-core structure PHBV short fibers and monofilaments is PHBV with the content of 3-Hydroxyvalerate (HV) of 0-8.0 mol%, when the content of HV is 0, the PHBV is poly (3-hydroxybutyrate) (PHB), and the viscosity average molecular weight of the core layer PHBV is 5.0 multiplied by 104～1.0×106(ii) a The skin layer is made of PHBV with HV content of 20-100 mol%, when the HV content is 100%, the PHBV is PHBV, and the viscosity average molecular weight of the skin layer is 5.0 multiplied by 104～1.0×106。
The high-strength high-efficiency PHBV filter material is characterized in that the linear density of the skin-core structure PHBV short fibers is 1.5-6D, the length is 10-150 mm, and the composite ratio of the skin layer (4) to the core layer (5) is 10: 90-50: 50.
the high-strength high-efficiency PHBV filter material is characterized in that when the skin-core structure PHBV monofilaments consist of 1-6, the diameter of each single PHBV monofilament is 0.08-0.5 mm, and the composite ratio of the skin layer (4) to the core layer (5) is 10: 90-50: 50.
the high-strength high-efficiency PHBV filter material is characterized in that the skin layer (4) of the PHBV short fibers and the monofilaments with the skin-core structure contains 0.1-10 wt% of tourmaline (6).
The high-strength high-efficiency PHBV filter material is characterized in that each layer of PHBV non-woven material (1) and (3) is reinforced by two methods of needling and thermal bonding, and the surface density is 50-200 g/m2。
The high-strength high-efficiency PHBV filter material is characterized in that the fabric weave of the PHBV woven fabric (2) is one of plain weave, 2/1 right twill, 2/1 left twill, 2/2 right twill, 2/2 left twill, 3/1 right twill, 3/1 left twill and square and flat; the warp density and the weft density are 50 pieces/10 cm-350 pieces/10 cm.
Has the advantages that:
(1) the filter material is prepared from PHBV as a raw material, and is renewable and biodegradable as a resource, so that the filter material is an environment-friendly material.
(2) The filter material takes the PHBV monofilament woven fabric as the base cloth, so that the strength of the filter material can be increased; in addition, the melting points of the PHBV short fibers and the monofilament skin layers of the skin-core structure used by the filter material are lower than that of the core layer, and the PHBV short fibers and the monofilament skin layers are reinforced by a thermal bonding mode after being reinforced by needling, so that the strength of the filter material is further improved, and the high strength of the filter material is realized.
(3) The PHBV short fiber with a skin-core structure and the skin layer of the monofilament used by the filter material are added with the nano tourmaline electret, so that the high efficiency and the low resistance of the filter material can be realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-strength high-efficiency PHBV filter material
FIG. 2 is a cross-sectional view of a PHBV fiber having a sheath-core structure
In the figure: 1. 3 is non-woven material, 2 is woven fabric, 4 is skin layer PHBV, 5 is core layer PHBV, and 6 is tourmaline.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the examples of the present invention. It should be understood that these examples are for illustrative purposes only and do not limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be effected by those skilled in the art after reading the teachings herein, and such equivalents are intended to fall within the scope of the invention as defined in the appended claims.
Example 1
A high-strength high-efficiency PHBV filter material structurally comprises three layers, namely a PHBV non-woven material 1, a PHBV non-woven material 3 and a layer of PHBV woven fabric 2, wherein the PHBV woven fabric 2 is positioned between the two layers of PHBV non-woven fabrics 1 and 3; the two layers of the PHBV non-woven materials 1 and 3 consist of skin-core structure PHBV short fibers, and the two layers of the PHBV non-woven materials 1 and 3 are needle-punched hot-rolled non-woven materials; the PHBV woven fabric 2 consists of a skin-core structure PHBV monofilament; the nonwoven and woven fabrics are joined together by needling and thermal bonding. The core layer 5 of the skin-core structure PHBV short fiber and monofilament of the high-strength high-efficiency PHBV filter material is prepared from a raw material with viscosity average molecular weight of 3.9 multiplied by 105PHBV with HV content of 2.5 mol%; the cortex raw material has viscosity average molecular weight of 2.6 × 105PHBV having an HV content of 30 mol%. The skin layer 4 contains 0.8 wt% of tourmaline 6, and the composite ratio of the skin layer 4 and the core layer 5 is 10: 90, respectively; the linear density of the skin-core structure PHBV short fiber is 1.8D, the length is 38mm, the skin-core structure PHBV monofilament consists of 2 filaments, and the diameter of each filament is 0.2 mm. The surface density of the PHBV non-woven material in the high-strength high-efficiency PHBV filter material is 100g/m2. The fabric weave of the PHBV woven fabric in the high-strength high-efficiency PHBV filter material is 2/1 right twill, and the warp density and the weft density are both 155 roots/10 cm. The longitudinal strength of the obtained high-strength high-efficiency PHBV filter material is 750N, the transverse strength is 802N, and the filtering efficiency of PM2.5 is 98.3%.
Example 2
A high-strength high-efficiency PHBV filter material structurally comprises three layers, namely a PHBV non-woven material 1, a PHBV non-woven material 3 and a layer of PHBV woven fabric 2, wherein the PHBV woven fabric 2 is positioned between the two layers of PHBV non-woven fabrics 1 and 3; the two layers of the PHBV non-woven materials 1 and 3 consist of skin-core structure PHBV short fibers, and the two layers of the PHBV non-woven materials 1 and 3 are needle-punched hot-rolled non-woven materials; the PHBV woven fabric 2 consists of a skin-core structure PHBV monofilament; the nonwoven and woven fabrics are joined together by needling and thermal bonding. The core layer 5 of the skin-core structure PHBV short fiber and monofilament of the high-strength high-efficiency PHBV filter material is prepared from a raw material with viscosity average molecular weight of 6.0 multiplied by 105PHB of (1); the cortex raw material has viscosity average molecular weight of 3.5 × 105HV containsPHBV in an amount of 20 mol%. The skin layer 4 contains 0.8 wt% of tourmaline 6, and the composite ratio of the skin layer 4 and the core layer 5 is 10: 90, respectively; the linear density of the skin-core structure PHBV short fibers is 4D, the length is 51mm, the skin-core structure PHBV monofilaments consist of 2 filaments, and the diameter of each filament is 0.2 mm. The surface density of the PHBV non-woven material in the high-strength high-efficiency PHBV filter material is 180g/m2. The fabric weave of the PHBV woven fabric in the high-strength high-efficiency PHBV filter material is 3/2 right twill, and the warp density and the weft density are 186 pieces/10 cm. The longitudinal strength of the obtained high-strength high-efficiency PHBV filter material is 1025N, the transverse strength is 1180N, and the filtering efficiency on PM2.5 is 99.7%.
Claims (5)
1. The high-strength high-efficiency poly 3-hydroxybutyrate-co-3-hydroxyvalerate filter material is characterized by comprising three layers, two layers of poly 3-hydroxybutyrate-co-3-hydroxyvalerate non-woven materials and one layer of poly 3-hydroxybutyrate-co-3-hydroxyvalerate woven fabric, wherein the woven fabric is positioned between the two layers of non-woven materials; the two layers of non-woven materials consist of skin-core structure poly 3-hydroxybutyrate-co-3-hydroxyvalerate short fibers, and the two layers of non-woven materials are needle-punched heat bonding non-woven materials; the woven fabric consists of a sheath-core structure poly 3-hydroxybutyrate-co-3-hydroxyvalerate monofilament; the nonwoven and woven fabrics are joined together by needling and thermal bonding.
2. The high-strength high-efficiency poly 3-hydroxybutyrate-co-3-hydroxyvalerate filter material as claimed in claim 1, wherein the poly 3-hydroxybutyrate-co-3-hydroxyvalerate staple fiber with the sheath-core structure has a linear density of 1.5-6D and a length of 10-150 mm.
3. The high-strength high-efficiency poly 3-hydroxybutyrate-co-3-hydroxyvalerate filter material of claim 1, wherein the poly 3-hydroxybutyrate-co-3-hydroxyvalerate monofilament with the skin-core structure comprises 1-6, and each monofilament has a diameter of 0.08-0.5 mm.
4. The high-strength high-efficiency poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter material of claim 1, wherein each layer of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) filter materialThe acid ester-co-3-hydroxyvalerate non-woven material is reinforced by two methods of needling and thermal bonding, and the areal density is 50-200 g/m2。
5. The high-strength high-efficiency poly 3-hydroxybutyrate-co-3-hydroxyvalerate filter material of claim 1, wherein the woven fabric of the poly 3-hydroxybutyrate-co-3-hydroxyvalerate woven fabric is one of plain weave, 2/1 right twill, 2/1 left twill, 2/2 right twill, 2/2 left twill, 3/1 right twill, 3/1 left twill and squareness; the warp density and the weft density are 50 pieces/10 cm-350 pieces/10 cm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166136A1 (en) * | 2021-02-04 | 2022-08-11 | 南京禾素时代抗菌材料科技有限公司 | Preparation method for antibacterial, antiviral and mildewproof polyester spunlace non-woven fabric containing phbv material |
| WO2023115980A1 (en) * | 2021-12-24 | 2023-06-29 | 广东新会美达锦纶股份有限公司 | Composite material, preparation method therefor and use thereof |
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2019
- 2019-12-03 CN CN201922139626.1U patent/CN212236352U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022166136A1 (en) * | 2021-02-04 | 2022-08-11 | 南京禾素时代抗菌材料科技有限公司 | Preparation method for antibacterial, antiviral and mildewproof polyester spunlace non-woven fabric containing phbv material |
| WO2023115980A1 (en) * | 2021-12-24 | 2023-06-29 | 广东新会美达锦纶股份有限公司 | Composite material, preparation method therefor and use thereof |
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