CN103788636A - High polymer blending system for manufacturing high-fineness high-strength non-figured PA6 superfine fibers - Google Patents
High polymer blending system for manufacturing high-fineness high-strength non-figured PA6 superfine fibers Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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Abstract
The invention relates to the technical field of superfine fiber synthetic leather, and especially relates to a high polymer blending system for manufacturing high-fineness high-strength non-figured PA6 (polyamide 6) superfine fibers. The high polymer blending system is formed by taking PA6 and low-density polyethylene (LDPE) as main high polymers, taking maleic anhydride modified linear low-density polyethylene (LLDPE-G-MAH) as a compatilizer and taking maleic anhydride modified ethylene-propylene-diene monomer (EPDM-G-MAH) as a flexibilizer. According to the blending system, PA6/LDP sea-island fibers can be prepared, the fineness of the finally dissolved PA6 ultrafine fibers can be up to 0.0001 dtex, nanometer-scale size is provided and better uniformity and strength are provided. By carrying out wet-process polyurethane dipping and methylbenzene decrement on the non-woven cloth manufactured by the sea-island fibers, non-figured PA6 ultrafine fiber synthetic leather base cloth can be obtained; and after finishing, ultrafine fiber synthetic leather with better hand feeling and higher strength can be obtained.
Description
Technical field
The present invention relates to superfine fiber chemical leather technical field, particularly a kind of polymer blends of manufacturing for the non-figured type PA6 of high fineness high strength (nylon 6) ultra-fine fibre.
Background technology
Ultra-fine fibre is the development in recent years one of differential fibre rapidly, is the Typical Representative of novel synthon.Not definition accurately in the world at present, various countries' definition is slightly different, but all take linear density as definition standard.The textiles association of Germany is referred to as ultra-fine fibre lower than 1.0dtex, PA linear density lower than the single fiber of 1.0dtex by PET linear density, the fiber that the PET council of the U.S. is 0.3dtex～1.0dtex by monofilament fineness is defined as ultra-fine fibre, AKZO thinks that the upper limit of ultra-fine fibre should be 0.3dtex, Italian the fiber below 0.5dtex is called to ultra-fine fibre, at present domestic monofilament fineness, the fiber below 1.1dtex is referred to as ultra-fine fibre substantially, and is less than the superfine fibre that is called O.1dtex.The synthon of each large kind all can spin ultra-fine fibre, as polyester, polymeric amide, polyacrylonitrile, polypropylene fibre etc.Because the linear density of ultra-fine fibre monofilament is significantly less than general fibre, the thinnest reached at 0.0001dtex, due to the sharply reduction of monofilament linear density, has just determined that ultra-fine fibre has many characteristics that are different from conventional fibre.
Along with the development of modern science and technology, the production system of synthetic leather constantly absorbs the new and high technology of other industry, if initial leatheroid is first-generation product, synthetic leather is exactly s-generation product so, and the appearance of superfine fiber chemical leather just belongs to third generation product naturally.This product is take not weaving fabric of superfine fiber as base material, dipping has the polyurethane slurry of open-celled structure, surface-area that ultra-fine fibre is huge and strong water-absorbent are brought into play, make superfine fiber chemical leather there is the part moisture-absorption characteristics that leather has, no matter thereby from internal microstructure, or the aspects such as appearance tactile impression and physical property and people's snugness of fit, all very approaching with leather.In addition, superfine fiber chemical leather has exceeded leather at aspects such as chemical-resistant stability, quality homogeneity, large process for processing adaptability and waterproof, mildew-resistant sex change.
The appearance of superfine fiber chemical leather, most important meaning is the status that this product has promoted whole industry.Ultra-fine fibre and products thereof is mainly taken the lead in developing and exploitation by Japan, starts to commercially produce, and obtained huge success beginning of the seventies late 1960s in synthetic leather product development.Nineteen sixty-five, Japanese Kuraray Co., Ltd.'s mainstream product " Kuraray Na " comes out, and has pulled open the historical curtain that ultra-fine fibre is produced.Within 1969, Japanese Kanebo Ltd starts to produce shoe lining leather use, the synthetic leather of commodity " Bereza " by name, and selling point is abrasive polishing materials.1970, first toray Co., Ltd. released the artificial suede shape synthetic leather " Ecsaina " that sea-island composite fiber is manufactured.1981, Japanese Kuraray company started selling grain type imitation leather " Sofrina ".After this high performance superfine fiber chemical leather progressively moves towards market, mainly contain " SavinaDP " of Zhong Fang company, " HilakeElettes " of Di Ren company, " HepaWool " of Asahi Kasei Corporation, " Nordfaser " of Germany, gondola " Anicfibre " etc.Du pont company, ICI company of Britain, German Hirst company, Eastern Europe, USSR (Union of Soviet Socialist Republics) also add exploitation ranks in succession subsequently.At present, the production of superfine fiber chemical leather mainly concentrates on the countries such as Japan, China, Korea S.
The production of China's superfine fiber chemical leather is behind the basis of Introduced from Japan Kuraray company technique, to be grown up in nineteen eighty-three by Yantai Synthetic Leather General Factory's (claiming afterwards ten thousand Hua Chaoxian limited-liability company).Adopted at that time lotus root shape multiporous fiber, produce light face emulational leather, the independent development of 1997 Nian Gai factories be different from imported technology fiber number be not figured type island superfine fiber of 0.01 dawn, batch production " great Fu leather " ultra-fine emulational leather of light Noodles in 1999, and further expanded production capacity in 2003 on this basis, go up Article 3 emulational leather production line.After this, Changshu, Jiangsu Province synthetic leather head factory (being now the special leather of Changshu bass company limited) is succeeded in developing the high imitation leather of figured type ultra-fine fibre on the basis of imported technology and equipment, Shanghai Hua Feng group has succeeded in developing the ultra-fine imitation leather in indefinite island, and carrying out rapidly large-scale production, this group also has 3 production lines at present; In addition, nineteen ninety-five, Shandong Tongda Haidao New Material Co., Ltd has successfully developed the ultra-fine emulational leather in indefinite island with Chinese characteristics, fiber fineness the most carefully can reach for 0.003～0.0005 dawn, there is independent intellectual property right, and develop into 4 production lines rapidly, and becoming one of ultra-fine emulational leather manufacturing enterprise of China's maximum, Wen Zhou the Yellow River, east, Laiwu Thailand, Zhejiang section skill, plum are contained in addition, Wenzhou removes from office base cloth company limited, Shandong Jin Feng, Zibo friendship machinery; The a collection of enterprises such as Wuxi Zhong Jin plastics company limited of Jiangsu echo group have also all built up production line putting into production successively, Japanese Kuraray company also with the glad cooperation of Zhejiang Jiaxing standing grain in 2005 year-end building up produce the ultra-fine emulational leather production line of 4,000,000 square metres per year and put into production.
The development of China's superfine fiber chemical leather industry only has the course of more than ten years, has obtained fast development in recent years, and China's Mainland has become the production base that global superfine fiber chemical leather is largest.Show according to State Statistics Bureau's information material, China's annual total import and export volume 36.36 of superfine fiber chemical leather in 2011 is with dollar, 10.7 hundred million meters of its middle outlets (56.96 ten thousand tons), increase by 12.96 on a year-on-year basis, export volume has accounted for 23.36% of ultimate production, 30.4 hundred million dollars of export trade volumes, increase by 35.11% on a year-on-year basis, have started to form the new historical stage of third generation production development.
At present, in superfine fiber chemical leather technical field, the trend of ultra-fine fibre Manufacturing Technology Development is as follows: (1), by improving fineness and the uniformity coefficient of ultra-fine fibre, further improves pliability, moisture absorption hydrofuge and the comfortableness of superfine fiber chemical leather.(2) by improving the approach of ultra-fine fibre intensity, further improve intensity and the wearing quality of superfine fiber chemical leather.
Summary of the invention
The object of the invention is the method by adding compatilizer and toughner, change the component of polymer blends in the spinning of island, make common PA6/LDPE system become PA6/LDPE/LLDPE-G-MAH/EPDM-G-MAH system.This polymer blends of the present invention, due to adding of compatilizer, the interfacial state between PA6/LDPE be can effectively improve, and dispersion state and the homogeneity of disperse phase (PA6), thereby fineness, uniformity coefficient and the intensity of PA6 ultra-fine fibre effectively improved.Due to adding of toughner, to the modifying surface of PA6 ultra-fine fibre, introduce the group with crosslinked action, after fiberizing, form the crosslinked of appropriateness, thereby improve the intensity of PA6 ultra-fine fibre.
This polymer blends of the present invention, prepares non-figured type PA6/LDPE sea-island fibre, final molten from the linear density of PA6 ultra-fine fibre can reach O.0001dtex, there is quasi-nano size, and there is better uniformity coefficient and intensity.The non-woven of being manufactured by this sea-island fibre, through dipping wet polyurethane and toluene decrement, can obtain non-figured type PA6 superfine fiber synthetic leather base cloth, then can obtain through ornamenting later the superfine fiber chemical leather that feel is better, intensity is higher.
For achieving the above object, the technical solution used in the present invention is:
1, a polymer blends of manufacturing for the non-figured type PA6 of high fineness high strength ultra-fine fibre,
1) formula of polymer blends is: calculate 45～55 parts of nylon 6 (PA6), 45～55 parts of Low Density Polyethylenes (LDPE), 0.3～3 part of compatilizer, O.1～0.5 part of toughner with weight of material umber.
2) this co-mixing system can be prepared non-figured type PA6/LDPE sea-island fibre by melt-spinning.The non-woven of being manufactured by this sea-island fibre, through dipping wet polyurethane and toluene decrement, can obtain non-figured type PA6 superfine fiber synthetic leather base cloth, then obtains superfine fiber chemical leather through ornamenting later.
O.04% preferred described PA6 section moisture content is less than, and fusing point is 215-225 ℃, as the M32800 type PA6 section of Mei Da limited-liability company;
Preferably the degree of crystallinity of LDPE section is 55%-65%, and fusing point is 104-126 ℃, and O.1% moisture content is less than, as the 1I50A type LDPE section of Beijing Yan Hua petrochemical complex stock company of China Petrochemical Industry "
Preferred compatible chaste tree is maleic anhydride modified linear low density polyethylene (LLDPE-G-MAH), as the compatilizer ST-7 series product of Nanjing Su Tai polymer Science and Technology Ltd.;
Preferably toughner is maleic anhydride modified terpolymer EP rubber (EPDM-G-MAH), as the toughner ST-18 series product of Nanjing Su Tai polymer Science and Technology Ltd..
The non-figured type PA6 ultra-fine fibre that the present invention also provides a kind of aforesaid method to prepare, O.0001dtex the linear density of described non-figured type PA6 ultra-fine fibre reaches.
The present invention compares with current conventional polymer blends, has following characteristics and advantages.One, by adding the method for compatilizer and toughner, changes the component of polymer blends in the spinning of island, makes common PA6/LDPE system become PA6/LDPE/LLDPE-G-MAH/EPDM-G-MAH system.Adopt this polymer blends, in the spinning process of island, do not need to change original spinning equipment and technique, that is to say, this polymer blends of the present invention has suitability widely; They are two years old, in this polymer blends, due to adding of compatilizer, can effectively improve the interfacial state between PA6/LDPE, and dispersion state and the homogeneity of disperse phase (PA6), thereby effectively improve fineness and the uniformity coefficient of PA6 ultra-fine fibre; Its three, in this polymer blends, due to adding of toughner, to the modifying surface of PA6 ultra-fine fibre, introduce and there is the group of crosslinked action, after fiberizing, form the crosslinked of appropriateness, thereby improve the intensity of PA6 ultra-fine fibre.They are four years old, this polymer blends that this law is bright, is suitable for preparing non-figured type PA6/LDPE sea-island fibre, final molten from the linear density of PA6 ultra-fine fibre can reach 0.0001dtex, there is quasi-nano size, and there is better uniformity coefficient and intensity.The non-woven of being manufactured by this sea-island fibre, through dipping wet polyurethane and toluene decrement, can obtain non-figured type PA6 superfine fiber synthetic leather base cloth, then can obtain through ornamenting later the superfine fiber chemical leather that feel is better, intensity is higher.
Leading indicator by the polymer blends gained PA6/LDPE sea-island fibre of inventing is as shown in table 1.
The leading indicator of table 1PA6/LDPE sea-island fibre
| Index of correlation | Conventional products | Product of the present invention |
| PA6/LDPE sea-island fibre precursor brute force | ≥60N | ≥80N |
| The effective island of PA6/LDPE sea-island fibre number | 150～300 | 500～1000 |
| The fiber number of PA6 ultra-fine fibre | 0.1～0.001dtex | 0.01～～～0.0001 |
Main Mechanical index by the polymer blends gained superfine fiber synthetic leather base cloth of inventing is as shown in table 2.
The Main Mechanical index of table 2 superfine fiber synthetic leather base cloth
| Sequence number | Project | Index | ? |
| 1 | Apparent density (g/cm 3) | ≤0.65 | ? |
| 2 | Tensile loading (N/em) | ≥80 | ? |
| 3 | Elongation at break (%) | ≥25 | ? |
| 4 | Tear load (N/mm) | ≥25 | ? |
| 5 | Peel load (N/20mm) | ≥20 | ? |
| 6 | Height (mm) bursts apart | ≥7 | ? |
| 7 | Bursting strength (N/mm) | ≥60 | ? |
Embodiment
Below by embodiment, the present invention is described in further detail, but the present invention has more than and is limited to these examples.
Embodiment 1
Calculate 41 parts of PA6,48 parts of LDPE, 10.7 parts of LLDPE-G-MAH, part EPDM-G-MAH O.3 with weight of material umber; Each raw material blend is formed to polymer blends; Prepare non-figured type PA6/LDPE sea-island fibre: prepare described non-figured type PA6/LDPE sea-island fibre by melt spinning method, described melt-spinning condition for carrying out above-mentioned polymer blends spinning in screw spinning equipment, 300 ℃ of spinning temperatures, the spinneret orifice diameter of spinning jet is at 0.9mm, orifice length and diameter (L/D) are than being 5, the PA6 section moisture content 0.0196 of carrying out melt-spinning, fusing point is 215 ℃; The degree of crystallinity of carrying out the LDPE section of melt-spinning is 65%, and fusing point is 104 ℃, and O.1% moisture content is less than;
Prepare non-figured type PA6/LDPE sea-island fibre; Prepare non-woven by described non-figured type PA6/LDPE sea-island fibre: after mixing shredding, carding, lapping and twice acupuncture, form non-woven by described non-figured type PA6/LDPE sea-island fibre; Prepare non-figured type PA6 ultra-fine fibre: urethane and water are mixed with to steeping fluid, by being equipped with in the steeping vat of steeping fluid, make steeping fluid soak into described non-woven described non-woven; Then the non-woven soaking into is passed through to a pair roller, extrude the steeping fluid being soaked in non-woven, the content of controlling steeping fluid in non-woven is 25% of non-woven weight; The non-woven of extruding steeping fluid, by the coagulating pan of solidification liquid is housed, is obtained to non-figured type PA6 superfine fiber synthetic leather base cloth; Described solidification liquid is by weight by the mixture of the ammonium chloride of the ammonium sulfate of the inorganic salt sodium-chlor of 5 parts, 1O part and 5 parts, and the water of the mineral alkali sodium carbonate of 1O part and 70 parts mixes, and under agitation dissolves, and obtains solidification liquid; Using toluene as solvent, by step 4) the described non-figured type PA6 superfine fiber synthetic leather base cloth that makes extracts, Low Density Polyethylene (LDPE) in described non-figured type PA6 superfine fiber synthetic leather base cloth is extracted, form the non-figured type PA6 ultra-fine fibre of pencil; The linear density of described non-figured type PA6 ultra-fine fibre reaches 0.0001dtex.
Embodiment 2
Calculate 55 parts of PA6,40 parts of LDPE, 4.9 parts of LLDPE-G-MAH, part EPDM-G-MAH O.1 with weight of material umber; Each raw material blend is formed to polymer blends; Prepare non-figured type PA6/LDPE sea-island fibre: prepare described non-figured type PA6/LDPE sea-island fibre by melt spinning method, described melt-spinning condition for carrying out above-mentioned polymer blends spinning in screw spinning equipment, 280 ℃ of spinning temperatures, the spinneret orifice diameter of spinning jet is at 0.1mm, orifice length and diameter (L/D) are than being 2.O, the PA6 section moisture content 0.009% of carrying out melt-spinning, fusing point is 215 ℃; The degree of crystallinity of carrying out the LDPE section of melt-spinning is 65%, and fusing point is 104 ℃, and moisture content O.0896;
Prepare non-figured type PA6/LDPE sea-island fibre; Prepare non-woven by described non-figured type PA6/LDPE sea-island fibre: after mixing shredding, carding, lapping and twice acupuncture, form non-woven by described non-figured type PA6/LDPE sea-island fibre; Prepare non-figured type PA6 ultra-fine fibre: urethane and water are mixed with to steeping fluid, by being equipped with in the steeping vat of steeping fluid, make steeping fluid soak into described non-woven described non-woven; Then the non-woven soaking into is passed through to a pair roller, extrude the steeping fluid being soaked in non-woven, the content of controlling steeping fluid in non-woven is 2096 of non-woven weight; The non-woven of extruding steeping fluid, by the coagulating pan of solidification liquid is housed, is obtained to non-figured type PA6 superfine fiber synthetic leather base cloth; Described solidification liquid is by weight by the mixture of the ammonium chloride of the inorganic salt sodium-chlor of 5 parts, the ammonium sulfate of 10 parts and 5 parts, and the water of the mineral alkali sodium carbonate of 10 parts and 70 parts mixes, and under agitation dissolves, and obtains solidification liquid; Using toluene as solvent, by step 4) the described non-figured type PA6 superfine fiber synthetic leather base cloth that makes extracts, Low Density Polyethylene (LDPE) in described non-figured type PA6 superfine fiber synthetic leather base cloth is extracted, form the non-figured type PA6 ultra-fine fibre of pencil; O.0001dtex the linear density of described non-figured type PA6 ultra-fine fibre reaches.
Embodiment 3
Calculate 48 parts of PA6,51 parts of LDPE, O.5 part LLDPE-G-MAH, part EPDM-G-MAH O.5 with weight of material umber; Each raw material blend is formed to polymer blends; Prepare non-figured type PA6/LDPE sea-island fibre: prepare described non-figured type PA6/LDPE sea-island fibre by melt spinning method, described melt-spinning condition for carrying out above-mentioned polymer blends spinning in screw spinning equipment, 350 ℃ of spinning temperatures, the spinneret orifice diameter of spinning jet is at 1.0mm, orifice length and diameter (L/D) are than being 10.0, carry out the PA6 section moisture content of melt-spinning O.03%, fusing point is 225 ℃; The degree of crystallinity of carrying out the LDPE section of melt-spinning is 55%, and fusing point is 126 ℃, moisture content O.O1%;
Prepare non-figured type PA6/LDPE sea-island fibre; Prepare non-woven by described non-figured type PA6/LDPE sea-island fibre: after mixing shredding, carding, lapping and twice acupuncture, form non-woven by described non-figured type PA6/LDPE sea-island fibre; Prepare non-figured type PA6 ultra-fine fibre: urethane and water are mixed with to steeping fluid, by being equipped with in the steeping vat of steeping fluid, make steeping fluid soak into described non-woven described non-woven; Then the non-woven soaking into is passed through to a pair roller, extrude the steeping fluid being soaked in non-woven, the content of controlling steeping fluid in non-woven is 25% of non-woven weight; The non-woven of extruding steeping fluid, by the coagulating pan of solidification liquid is housed, is obtained to non-figured type PA6 superfine fiber synthetic leather base cloth; Described solidification liquid is by weight by the mixture of the ammonium chloride of the inorganic salt sodium-chlor of 5 parts, the ammonium sulfate of 10 parts and 5 parts, and the water of the mineral alkali sodium carbonate of 10 parts and 70 parts mixes, and under agitation dissolves, and obtains solidification liquid; Using toluene as solvent, by step 4) the described non-figured type PA6 superfine fiber synthetic leather base cloth that makes extracts, Low Density Polyethylene (LDPE) in described non-figured type PA6 superfine fiber synthetic leather base cloth is extracted, form the non-figured type PA6 ultra-fine fibre of pencil; O.0001dtex the linear density of described non-figured type PA6 ultra-fine fibre reaches.
Claims (7)
1. a polymer blends of manufacturing for the non-figured type PA6 of high fineness high strength ultra-fine fibre, it is characterized in that: the formula of polymer blends is: calculate with weight of material umber, 45～55 parts of nylon 6 (PA6), 45～55 parts of Low Density Polyethylenes (LDPE), 0.3～3 part of compatilizer, O.1～0.5 part of toughner, form polymer blends by each raw material blend.
2. polymer blends as claimed in claim 1, is characterized in that: the compatilizer of employing is maleic anhydride modified linear low density polyethylene (LLDPE-G-MAH).
3. polymer blends as claimed in claim 1, is characterized in that: the toughner of employing is maleic anhydride modified terpolymer EP rubber (EPDM-G-MAH).
4. polymer blends as claimed in claim 1, it is characterized in that: this polymer blends can be prepared non-figured type PA6/LDPE sea-island fibre by melt-spinning, the non-woven of being manufactured by this sea-island fibre, through dipping wet polyurethane and toluene decrement, can obtain non-figured type PA6 superfine fiber synthetic leather base cloth, then obtain superfine fiber chemical leather through ornamenting later.
5. polymer blends as claimed in claim 4, is characterized in that: O.04% the PA6 section moisture content of carrying out melt-spinning is less than, and fusing point is 215-225 ℃.
6. polymer blends as claimed in claim 4, is characterized in that: the degree of crystallinity of carrying out the LDPE section of melt-spinning is 55%-65%, and fusing point is 104-126 ℃, and O.1% moisture content is less than.
7. polymer blends as claimed in claim 4, it is characterized in that: O.0001dtex the linear density of described non-figured type PA6 ultra-fine fibre reaches, the effective island of PA6/LDPE sea-island fibre number is 500-1000, and PA6/LDPE sea-island fibre precursor brute force is greater than 80N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410056736.0A CN103788636B (en) | 2014-02-20 | 2014-02-20 | A kind of polymer blends manufactured for high fineness high intensity non-figured type PA6 superfine fibre |
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| CN107001732A (en) * | 2014-12-04 | 2017-08-01 | 新加坡聚烯烃私营有限公司 | The polyethylene blend that itself is used as the carrier for microfibre manufacturing process |
| CN111335032A (en) * | 2020-04-20 | 2020-06-26 | 陕西科技大学 | Super-hydrophobic figured nylon superfine fiber non-woven fabric and preparation method thereof |
| CN111888840A (en) * | 2020-07-09 | 2020-11-06 | 南京捷纳思新材料有限公司 | Efficient air filter medium and preparation method thereof |
| CN112239897A (en) * | 2020-09-24 | 2021-01-19 | 上海华峰超纤科技股份有限公司 | Island-in-island fiber and application thereof in PU leather |
| CN112663155A (en) * | 2020-12-21 | 2021-04-16 | 江苏华峰超纤材料有限公司 | Sea-island fiber for thermal forming non-woven fabric and preparation method thereof |
| CN114605721A (en) * | 2022-02-24 | 2022-06-10 | 金发科技股份有限公司 | Non-crosslinked polyethylene material and preparation method and application thereof |
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| CN105463598B (en) * | 2015-11-16 | 2019-01-29 | 四川大学 | A kind of Super-fine Synthetic Leather fiber of graphene enhancing |
| CN111335032A (en) * | 2020-04-20 | 2020-06-26 | 陕西科技大学 | Super-hydrophobic figured nylon superfine fiber non-woven fabric and preparation method thereof |
| CN111888840A (en) * | 2020-07-09 | 2020-11-06 | 南京捷纳思新材料有限公司 | Efficient air filter medium and preparation method thereof |
| CN112239897A (en) * | 2020-09-24 | 2021-01-19 | 上海华峰超纤科技股份有限公司 | Island-in-island fiber and application thereof in PU leather |
| CN112239897B (en) * | 2020-09-24 | 2023-01-13 | 上海华峰超纤科技股份有限公司 | Island-in-island fiber and application thereof in PU leather |
| CN112663155A (en) * | 2020-12-21 | 2021-04-16 | 江苏华峰超纤材料有限公司 | Sea-island fiber for thermal forming non-woven fabric and preparation method thereof |
| CN112663155B (en) * | 2020-12-21 | 2022-04-15 | 江苏华峰超纤材料有限公司 | Sea-island fiber for thermal forming non-woven fabric and preparation method thereof |
| CN114605721A (en) * | 2022-02-24 | 2022-06-10 | 金发科技股份有限公司 | Non-crosslinked polyethylene material and preparation method and application thereof |
| CN114605721B (en) * | 2022-02-24 | 2023-11-03 | 金发科技股份有限公司 | Non-crosslinked polyethylene material and preparation method and application thereof |
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