CN104727156A - Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite - Google Patents
Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite Download PDFInfo
- Publication number
- CN104727156A CN104727156A CN201510165014.3A CN201510165014A CN104727156A CN 104727156 A CN104727156 A CN 104727156A CN 201510165014 A CN201510165014 A CN 201510165014A CN 104727156 A CN104727156 A CN 104727156A
- Authority
- CN
- China
- Prior art keywords
- attapulgite
- recessed soil
- leather
- water
- nano
- 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
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention discloses a method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite. The method includes adopting non woven fabrics as the base fabric, and soaking the non woven fabric in NaCl water solution; drying and ironing the soaked base fabric, and calendering the surface; adopting attapulgite as raw material, smashing, soaking in water, extruding through opposite rollers, aging and adding anionic waterborne polyurethane for high speed pre-dispersion; adding foaming agent, foam stabilizing agent and aqueous colorant sequentially, mixing at high speed, and obtaining waterborne polyurethane synthesis leather slurry; soaking the pretreated base fabric in the waterborne polyurethane synthesis leather slurry, scraping the surface, drying, and obtaining the waterborne polyurethane base leather. The attapulgite filler is low in cost and easy to prepare, the synergistic reinforcement effect of fibrillar attapulgite and associated minerals is played completely, the mechanical property of the synthesis base leather is improved effectively, organic solvent is omitted during production, safety and environment protection can be achieved, the process is easy and simple to implement, and large-scale production is easy to implement.
Description
Technical field
The invention belongs to aqueous polyurethane leather preparing technical field, be specifically related to a kind of method that nano-attapulgite stone clay fills synthesis full aqueous polyurethane leather bass.
Background technology
Polyurethane leather has the outward appearance that gloss is soft, natural, soft, kishke feel is strong, has heat-insulation breathable concurrently and the advantage such as production technology is simple simultaneously, is widely used in the industries such as clothes, shoemaking, automobile, case and bag, furniture.All need to use a large amount of organic solvents in the polyurethane resin that traditional polyurethane leather uses in producing and wet method leather production, these solvents are inflammable and explosive, and toxic and side effect is large, and both contaminated environment, threaten again the life and health of people.In recent years, along with country requires more and more higher to environmental protection and energy-saving and emission-reduction, the production of solvent borne polyurethane leather has to face transition and upgrade.
Aqueous polyurethane has the advantages such as environmental protection, nontoxic, economize energy, and adopting aqueous polyurethane to replace solvent borne polyurethane has become a kind of inevitable trend.But due to the molecular chain-end of aqueous polyurethane introducing more hydrophilic radical, make the poor-performings such as its mechanical property, heat endurance, water-fast solvent resistant, limit its extensive use.A kind of important directions that mechanical property and fire resistance are the research of aqueous polyurethane leather is promoted by adding inorganic filler.Chinese patent CN102634242 proposes a kind of halloysite nanotubes modification and prepares the method for composite with aqueous polyurethane compound, use silane coupler modified purification halloysite nanotubes, composite is prepared again with aqueous polyurethane compound, the TENSILE STRENGTH of remarkable lifting material and glass transition temperature, but need first by the dispersion of galapectite low concentration modification in organic solvent in preparation, cause that its production efficiency is low and energy consumption is high, process is complicated, is unfavorable for environmental protection.
The attapulgite of one dimension high length-diameter ratio is that (attapulgite monocrystalline is about 1-5um to the rich aluminium magensium silicate of a kind of porous, diameter is about 20-70nm), the recessed soil being main component with it is a kind of nonmetallic ore of rare natural micro nano structure, have " kings of ten thousand soil " good reputation, be widely used in the fields such as chemical industry, light industry and agricultural.The monodimension nano stick crystal structure of attapulgite uniqueness and good physicochemical property determine its micron fill and nanometer strengthens two levels and macromolecule carries out function and service, be excellent macromolecular material auxiliary agent.Research shows, the silicone hydroxyl that recessed soil surface is enriched can interact with the hard section of polyurethane, enhances the bonding force between macromolecule, effectively can promote mechanical property and the fire resistance of polyurethane material.Chinese patent CN102838870A proposes a kind of soybean oil based polyurethane/attapulgite clay nano composite material and preparation method thereof, using nano concave earth as filler add soybean oil polyol and isophorone diisocyanate situ synthesis prepared compound polyurethane material, the TENSILE STRENGTH of material, Young's modulus and vitrification point have lifting, but recessed soil needs to disperse to dissociate in acetone solvent during preparation, recessed soil is only as filler in system simultaneously, and nanometer reinforcing property is not brought into play completely.Recessed native raw ore is not also directly used to fill the relevant report of synthesis water-based polyurethane leather bass in current document.
Summary of the invention
The object of the invention is to: provide a kind of nano-attapulgite stone clay to fill the method for synthesis full aqueous polyurethane leather bass, adopt the recessed soil of filler cheap and easy to get, give full play to fibrous recessed soil and associated mineral works in coordination with strengthening action, the mechanical property of effective enhancing synthetic leather bass, production process does not use any organic solvent, safety and environmental protection, simple for process, effectively realize large-scale production.
Technical solution of the present invention is that this synthetic method comprises the following steps: select non-woven cloth to be base cloth, is impregnated in the NaCl aqueous solution; Base cloth after impregnation is dried and plates, surperficial calendering process; With
5-15 gramrecessed soil is raw material, through pulverizing, adding water infiltration, pair roller extruding, add 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane high speed after ageing, then add 3-7 gram of blowing agent successively, 2-4 gram foam stabilizer, a 1-4 gram water stain high-speed stirred make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
Wherein, the concentration of the described impregnation NaCl aqueous solution is that after impregnation, base belt liquid rate is 15-35wt%, and coated weight is 400-800g/m containing NaCl 5-15wt%
3.
Wherein, described recessed soil is the recessed soil of montmorillonite, the recessed soil of dolomite, high sticky recessed soil or recessed soil of purifying, in the recessed soil of montmorillonite: attapulgite content 35-55wt%, smectite content 30-50wt%; In the recessed soil of dolomite: attapulgite content 15-35wt%, dolomite content 50-70wt%; In high sticky recessed soil: attapulgite content is 55-80wt%; Purify in recessed soil: attapulgite content is greater than 95wt%.
Wherein, described high speed pre-dispersing operation is:
5-15 gramrecessed soil is crushed to more than 200 orders, adds 50-100wt% water infiltration 12-24h, and pair roller extruding 3-5 time, after ageing 4-12h, adds 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane high speed, and its concave soil content is the 5-15wt% of aqueous polyurethane quality.
Wherein, described blowing agent is stearates surfactant or alkyl benzene sulfonate surfactant, and described foam stabilizer is fatty acid amide surfactants or butanedioic acid type surfactant, and described water stain is natural or use for synthetic leather aqueous pigment cream.
The invention has the advantages that:
1. adopt full water-base resin to replace solvent type resin, whole production process does not use any organic solvent, effectively can solve during current solvent borne polyurethane leather is produced the DMF produced and pollute and DMF residue problem.
2. recessed native abundant raw material source, cheap and easy to get, safety non-toxic during use, environmental protection.
3. pair recessed native raw ore preliminary treatment is abundant, under high speed shear effect, the brilliant bundle of the recessed soil of effective promotion dissociates and nanometer, give full play to its nanometer strengthening action, utilize the shape of fibrous recessed soil and its associated mineral to work in coordination with strengthening action simultaneously, thus significantly promoting institute's process hides sample mechanical property, made polyurethane leather bass has excellent mechanical property and fire resistance.
4. pair recessed native preliminary treatment and brilliant bundle dissociate fully, recessed soil by efficient solution from, it can be dispersed in the slurry, ensure the stable performance of the polyurethane leather bass of preparation, the recurve soil that simultaneously dissociates has good thickening power, reduces and does not even use water-based thickener, reduce production cost.
5. compared with removing from office wet method bass with solvent borne polyurethane, have similar microcellular structure and physics feel, better mechanical performance, water-permeable and air permeable and fire resistance, production technology is simple, and safety and environmental protection, is easy to large-scale production.
Detailed description of the invention
Further illustrate technical solution of the present invention below in conjunction with specific embodiment, these embodiments should not be understood as the restriction to technical solution.
Embodiment 1: select non-woven cloth to be base cloth, is impregnated in the 15wt%NaCl aqueous solution, and after impregnation, base belt liquid rate is 35wt%, and coated weight is 800g/m
3; Base cloth after impregnation is dried and plates, surperficial calendering process; The recessed soil of montmorillonite of 15 grams of attapulgite content 45wt%, smectite content 40wt% is crushed to more than 200 orders, add 100wt% water infiltration 24h, pair roller extrudes 5 times, after ageing 12h, add 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane 8000rpm high speed, then add 7 grams of odium stearate successively, 4 grams of Stearyl Amines, 4 grams of aqueous pigment cream 6000rpm high-speed stirred 20min make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
Embodiment 2: select non-woven cloth to be base cloth, is impregnated in the 5wt%NaCl aqueous solution, and after impregnation, base belt liquid rate is 15wt%, and coated weight is 400g/m
3; Base cloth after impregnation is dried and plates, surperficial calendering process; The recessed soil of dolomite of 12 grams of attapulgite content 25wt%, dolomite content 60wt% is crushed to more than 250 orders, add 50wt% water infiltration 12h, pair roller extrudes 3 times, after ageing 4h, add 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane 10000rpm high speed, then add 3 grams of neopelexes successively, 2 grams of Stearyl Amines, 1 gram of aqueous pigment cream 8000rpm high-speed stirred 20min make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
Embodiment 3: select non-woven cloth to be base cloth, is impregnated in the 10wt%NaCl aqueous solution, and after impregnation, base belt liquid rate is 25wt%, and coated weight is 600g/m
3; Base cloth after impregnation is dried and plates, surperficial calendering process; 8 grams of attapulgite content is that the height of 70wt% glues recessed soil and is crushed to more than 300 orders, add 75wt% water infiltration 18h, pair roller extrudes 4 times, after ageing 8h, add 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane 8000rpm high speed, then add 5 grams of odium stearate successively, 3 grams of sodium succinates, 2.5 grams of aqueous pigment cream 6000rpm high-speed stirred 20min make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
Embodiment 4: select non-woven cloth to be base cloth, is impregnated in the 8wt%NaCl aqueous solution, and after impregnation, base belt liquid rate is 20wt%, and coated weight is 500g/m
3; Base cloth after impregnation is dried and plates, surperficial calendering process; The recessed soil of purification of 5 grams of attapulgite content 95wt% is crushed to more than 350 orders, add 80wt% water infiltration 20h, pair roller extrudes 3 times, after ageing 12h, add 100 grams of pre-dispersed 30min of anion-type water-thinned polyurethane 10000rpm high speed, then add 6 grams of neopelexes successively, 4 grams of sodium succinates, 1 gram of aqueous pigment cream 8000rpm high-speed stirred 20min make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
Claims (7)
1. nano-attapulgite stone clay fills the method for synthesis full aqueous polyurethane leather bass, it is characterized in that this synthetic method comprises the following steps: select non-woven cloth to be base cloth, is impregnated in the NaCl aqueous solution; Base cloth after impregnation is dried and plates, surperficial calendering process; With
5-15 gramrecessed soil is raw material, through pulverizing, adding water infiltration, pair roller extruding, add the pre-dispersed 30min of anion-type water-thinned polyurethane high speed of 100 grams after ageing, then add 3-7 gram of blowing agent successively, 2-4 gram foam stabilizer, a 1-4 gram water stain high-speed stirred make Water-borne polyurethane synthetic leather size; Impregnated in Water-borne polyurethane synthetic leather size by pretreated base cloth, surface strikes off, and dries, obtained water-soluble polyurethane leather beth.
2. the method for synthesis full aqueous polyurethane leather bass is filled by nano-attapulgite stone clay according to claim 1, it is characterized in that: the concentration of the described impregnation NaCl aqueous solution is containing NaCl 5-15wt%, after impregnation, base belt liquid rate is 15-35wt%, and coated weight is 400-800g/m
3.
3. the method for synthesis full aqueous polyurethane leather bass is filled by nano-attapulgite stone clay according to claim 1, it is characterized in that: described recessed soil is the recessed soil of montmorillonite, the recessed soil of dolomite, high sticky recessed soil or recessed soil of purifying, in the recessed soil of montmorillonite: attapulgite content 35-55wt%, smectite content 30-50wt%; In the recessed soil of dolomite: attapulgite content 15-35wt%, dolomite content 50-70wt%; In high sticky recessed soil: attapulgite content is 55-80wt%; Purify in recessed soil: attapulgite content is greater than 95wt%.
4. fill the method for synthesis full aqueous polyurethane leather bass by nano-attapulgite stone clay according to claim 1, it is characterized in that: described high speed pre-dispersing operation is:
5-15 gramrecessed soil is crushed to more than 200 orders, adds 50-100wt% water infiltration 12-24h, and pair roller extruding 3-5 time, after ageing 4-12h, adds 100 grams of anion-type water-thinned polyurethane high-speed stirred 30min, and its concave soil content is the 5-15wt% of aqueous polyurethane quality.
5. fill the method for synthesis full aqueous polyurethane leather bass by nano-attapulgite stone clay according to claim 1, it is characterized in that: described blowing agent is stearates surfactant or alkyl benzene sulfonate surfactant.
6. fill the method for synthesis full aqueous polyurethane leather bass by nano-attapulgite stone clay according to claim 1, it is characterized in that: described foam stabilizer is fatty acid amide surfactants or butanedioic acid type surfactant.
7. fill the method for synthesis full aqueous polyurethane leather bass by nano-attapulgite stone clay according to claim 1, it is characterized in that: described water stain is natural or use for synthetic leather aqueous pigment cream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165014.3A CN104727156A (en) | 2015-04-09 | 2015-04-09 | Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165014.3A CN104727156A (en) | 2015-04-09 | 2015-04-09 | Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104727156A true CN104727156A (en) | 2015-06-24 |
Family
ID=53451522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510165014.3A Pending CN104727156A (en) | 2015-04-09 | 2015-04-09 | Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104727156A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629526A (en) * | 2017-09-30 | 2018-01-26 | 淮阴工学院 | Antibacterial compounded mix, preparation method and applications |
| CN108468227A (en) * | 2018-03-08 | 2018-08-31 | 江西铭川科技实业有限公司 | Enhance the method for waterborne polyurethane for synthetic leather water resistance using aluminium-magnesium silicate |
| CN113797892A (en) * | 2019-05-09 | 2021-12-17 | 淮阴工学院 | Application of mineral-based Yolk-shell composite microspheres in adsorption of iodine ions in radioactive water |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3585162A (en) * | 1970-01-07 | 1971-06-15 | Chevron Res | Polyurethane recreational surfaces having improved tear strength |
| CN1173569A (en) * | 1997-04-22 | 1998-02-18 | 淮阴工业专科学校 | Method of producing polyurethane synthetic leather by using Concave-convex clay rod as filler |
| CN101565588A (en) * | 2009-06-01 | 2009-10-28 | 四川大学 | Organic attapulgite water-borne polyurethane nano composite leather coating agent and preparation method thereof |
| CN101759999A (en) * | 2009-12-25 | 2010-06-30 | 温州市寰宇高分子材料有限公司 | Slurry of waterborne polyurethane for synthetic leather produced by the replacing wet method and application method thereof |
| CN102418284A (en) * | 2011-09-02 | 2012-04-18 | 福建宝利特集团有限公司 | Preparation method of water-soluble polyurethane leather beth |
| CN102786646A (en) * | 2012-08-17 | 2012-11-21 | 江苏大学 | Acid modified palygorskite-polyurethane porous material as well as preparation method and application thereof |
| CN102838870A (en) * | 2012-09-26 | 2012-12-26 | 南京大学 | Soybean oil-based polyurethane/attapulgite nano composite material and preparation method thereof |
| CN103319725A (en) * | 2013-06-26 | 2013-09-25 | 兰州理工大学 | Unsaturated polyester nano attapulgite material and preparation method thereof |
| CN104098933A (en) * | 2014-07-15 | 2014-10-15 | 淮阴工学院 | Preparation method for attapulgite clay/calcium carbonate composite filling for polyurethane leather |
-
2015
- 2015-04-09 CN CN201510165014.3A patent/CN104727156A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3585162A (en) * | 1970-01-07 | 1971-06-15 | Chevron Res | Polyurethane recreational surfaces having improved tear strength |
| CN1173569A (en) * | 1997-04-22 | 1998-02-18 | 淮阴工业专科学校 | Method of producing polyurethane synthetic leather by using Concave-convex clay rod as filler |
| CN101565588A (en) * | 2009-06-01 | 2009-10-28 | 四川大学 | Organic attapulgite water-borne polyurethane nano composite leather coating agent and preparation method thereof |
| CN101759999A (en) * | 2009-12-25 | 2010-06-30 | 温州市寰宇高分子材料有限公司 | Slurry of waterborne polyurethane for synthetic leather produced by the replacing wet method and application method thereof |
| CN102418284A (en) * | 2011-09-02 | 2012-04-18 | 福建宝利特集团有限公司 | Preparation method of water-soluble polyurethane leather beth |
| CN102786646A (en) * | 2012-08-17 | 2012-11-21 | 江苏大学 | Acid modified palygorskite-polyurethane porous material as well as preparation method and application thereof |
| CN102838870A (en) * | 2012-09-26 | 2012-12-26 | 南京大学 | Soybean oil-based polyurethane/attapulgite nano composite material and preparation method thereof |
| CN103319725A (en) * | 2013-06-26 | 2013-09-25 | 兰州理工大学 | Unsaturated polyester nano attapulgite material and preparation method thereof |
| CN104098933A (en) * | 2014-07-15 | 2014-10-15 | 淮阴工学院 | Preparation method for attapulgite clay/calcium carbonate composite filling for polyurethane leather |
Non-Patent Citations (1)
| Title |
|---|
| 金叶玲: "凹凸棒石粘土的性能及其在聚氨酯革中的应用", 《中国优秀博硕士学位论文全文数据库（博士） 工程科技I辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107629526A (en) * | 2017-09-30 | 2018-01-26 | 淮阴工学院 | Antibacterial compounded mix, preparation method and applications |
| CN108468227A (en) * | 2018-03-08 | 2018-08-31 | 江西铭川科技实业有限公司 | Enhance the method for waterborne polyurethane for synthetic leather water resistance using aluminium-magnesium silicate |
| CN113797892A (en) * | 2019-05-09 | 2021-12-17 | 淮阴工学院 | Application of mineral-based Yolk-shell composite microspheres in adsorption of iodine ions in radioactive water |
| CN113797892B (en) * | 2019-05-09 | 2023-09-29 | 淮阴工学院 | Application of mineral-based Yolk-shell composite microsphere in adsorption of iodine ions in radioactive water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107032687B (en) | High-elastic-die water-permeable environment-friendly mortar for sponge city produced by using construction waste and preparation method thereof | |
| CN104727156A (en) | Method for filling and synthetizing full waterborne polyurethane base leather through nano attapulgite | |
| CN109160781B (en) | High-strength water-permeable concrete and preparation method thereof | |
| CN105622132A (en) | Sponge-city environment-friendly recycled-aggregate pervious concrete and preparing method thereof | |
| CN103242620B (en) | Novel high-strength plastic for household electrical appliance and preparation method of novel high-strength plastic | |
| CN108342099A (en) | A kind of method of surface of graphene oxide chemical modification and application | |
| CN101314675A (en) | Industry xylogen reinforced and filled coblended elastomer material, and preparation method thereof | |
| CN105440380A (en) | High strength wear resistant rubber material | |
| CN105541201A (en) | High-toughness haydite concrete and preparation method thereof | |
| CN106543688A (en) | A kind of organic/inorganic nano combined casting material and preparation method thereof | |
| CN109867916A (en) | Plant fiber reinforced resin based composites and preparation method thereof | |
| CN104987789A (en) | High-adhesion wear-resisting, skid-resisting and weather-resisting sport field special coating and preparation method thereof | |
| CN107434378A (en) | A kind of sponge city low-carbon environment-friendly waste asphalt mixture composite permeable mortar and preparation method thereof | |
| CN106700173A (en) | High-strength wear-resistant rubber material | |
| CN108727793A (en) | Modified particieboard, enhancing polylactic acid 3D printing material and preparation method thereof | |
| CN106220094A (en) | A kind of modified concrete with excellent performance of resisting cracking | |
| CN109401174A (en) | A kind of PBT toughener and preparation method thereof | |
| CN104710693B (en) | Low-temperature-resistant door/window sealing strip and preparation method thereof | |
| CN108914623A (en) | A method of superfine fiber polyurethane leather is prepared with modified nano-titanium dioxide-surface grafting carbon nanotube | |
| CN107200511B (en) | Nano material modified rubber asphalt mixture and preparation method thereof | |
| CN106746879A (en) | A kind of moisture absorbing resin type sealing compound and preparation method thereof | |
| CN116514400A (en) | Method for preparing foam glass by using waste glass fiber blades and waste carbon fiber blades | |
| CN105755847A (en) | Floor leather based on dermal fiber reclaimed leather and preparation method of floor leather | |
| CN106609017A (en) | Special starch-coated glass fiber reinforced modified PVC pipe for coal mines and preparation method for PVC pipe | |
| CN106381610A (en) | Preparation method of high-strength weather-proof type geotextile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |