CN102995446B - Attapulgite-modified polyvinyl chloride synthetic leather and manufacturing method thereof - Google Patents
Attapulgite-modified polyvinyl chloride synthetic leather and manufacturing method thereof Download PDFInfo
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- CN102995446B CN102995446B CN201210406489.3A CN201210406489A CN102995446B CN 102995446 B CN102995446 B CN 102995446B CN 201210406489 A CN201210406489 A CN 201210406489A CN 102995446 B CN102995446 B CN 102995446B
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Abstract
The invention discloses attapulgite-modified polyvinyl chloride (PVC) synthetic leather. The attapulgite-modified PVC synthetic leather comprises a surface layer, a foamed layer, a bonding layer and a brushing fabric, and is characterized in that the surface layer is prepared by mixing the following raw materials in parts by weight to form slurry: 70 to 80 parts of SG-2 type PVC resin, 30 to 40 parts of SG-5 type PVC resin, 10 to 15 parts of triethyl citrate, 30 to 35 parts of epoxy butyl oleate, 20 to 25 parts of n-butyl methacrylate, 5 to 6 parts of PVC color paste, 1 to 2 parts of dibasic lead phosphate, 1 to 2 parts of tribasic lead sulfate and 5 to 10 parts of modified diatomite. Through the improvements of the formula and the process, the flexibility of the synthetic leather is improved, and the synthetic leather has a natural comfortable hand feeling similar to that of natural leather and is difficult to damage or tear after being used for 3 to 5 years.
Description
Technical field
The invention belongs to a kind of chemical synthesis leather facing material processing technique field, specifically a kind of attapulgite modified polyvinyl chloride synthetic leather and manufacture method thereof.
Background technology
At present, the field of furniture such as commercial family property and family expenses family property extensively adopts polyurethane and attapulgite modified polyvinyl chloride synthetic leather.Synthetic Leather has the advantages such as emulation is high, good hand touch, obtains the extensive favor in market.Yet a large amount of use has certain toxicity and volatile DMF solvent in its manufacture process, even also can there is abundant residues through fully dry DMF, become the source that room air VOC exceeds standard and pollutes; Meanwhile, Synthetic Leather, due to problems such as hydrolysis, weatherability deficiencies, has limited its further extensive use.Attapulgite modified polyvinyl chloride synthetic leather has excellent hydrolysis, wear-resisting, scratch resistance, the advantage such as fire-retardant, but product quality existing problems.
Summary of the invention
The object of the present invention is to provide a kind of attapulgite modified polyvinyl chloride synthetic leather and manufacture method thereof, the synthetic leather good product quality of production.
Object of the present invention can be achieved through the following technical solutions:
An attapulgite modified polyvinyl chloride synthetic leather, comprises surface layer, foaming layer and adhesive linkage, nylon loop, it is characterized in that:
Described surface layer is made into slurry by following raw materials in part by weight and makes:
SG-2 type polyvinyl chloride resin 70-80, SG-5 type polyvinyl chloride resin 30-40, triethyl citrate 10-15, epoxyoleic acid butyl ester 30-35, n-BMA 20-25, PVC color 5-6, dibasic lead phosphite 1-2, lead sulfate tribasic 1-2, modification infusorial earth 5-10, aluminium oxide 30-35, nano-calcium carbonate 40-45, the fast carbon black N660 20-25 that extrudes, titanate coupling agent TMC-TTS 1-2, irgasfos 168 1-2, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 1-2, Silane coupling agent KH550 1-2, protein powder 3-4,
Described foaming layer is made into slurry by following raw materials in part by weight and makes:
SG-4 type polyvinyl chloride resin 40-50, SG-6 type polyvinyl chloride resin 70-80, adipic acid propanediol polyester 30-35, n-BMA 25-30, decanedioic acid propanediol polyester 15-20, n-BMA 20-25, unifor 1-2, blowing agent (461DU40) 1-2, sodium sulfate of polyethenoxy ether of fatty alcohol 1-2, Imarcaptoacetate dioctyltin 1-2, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, attapulgite modified 5-10, carbon black N220 40-45, precipitated silica 30-35, antioxidant 1010 1-2, 3-aminopropyl trimethoxysilane 2-3, crosslinking agent TAC 1-2,
Described attapulgite modified preparation by the following method:
By attapulgite roasting 4-5 hour at 750-800 ℃, after put into 10-15% hydrochloric acid solution and soak after 3-4 hour, pull out, dry to moisture 2-3%, add be equivalent to the nano-carbon powder of its weight 5-8%, the dibutyl maleate of titanate coupling agent TMC-TTS, 3-4% of 3-4%, the calcium stearate of 3-4%, mix, at 60-70 ℃, 3500-4000 rev/min is stirred 30-50 minute, oven dry, pulverize;
Described modified alta-mud is prepared by the following method:
(1) 10-15% salt acid soak 3-4 hour for bentonite, deionized water washing, then soak 3-4 hour with 10-12% sodium hydroxide solution, more extremely neutral with deionized water washing, dry;
(2) dry to add in bentonite and be equivalent to sodium phosphate trimer, the 3-5% aluminium hydroxide of its weight 3-5%, the sldium lauryl sulfate of 2-3%, at 60-70 ℃, stir 40-50 minute, dry, be ground into powder.
The manufacture method of described attapulgite modified polyvinyl chloride synthetic leather, is characterized in that adopting release liners knife coating technique:
(1), stir after surface layer raw material is mixed, mixing speed is 1200-1500 rev/min, and mixing time is 1-2 hour, filters to obtain surface layer slurry,
(2), then release liners is preheated to 60-70 ℃, by surface layer slurry with 150-200g/m
2blade coating amount be coated with and scrape release liners surface, at 160-165 ℃, plastify film forming;
(3), stir after will foaming layer slurry mixing, mixing speed is 1200-1500 rev/min, filters to obtain foaming layer slurry;
(4), foaming layer slurry is coated on surface layer, at 160-180 ℃, foam;
(5), re-use aqueous polyurethane slurry and make the laminating of foaming layer and nylon loop as adhesive linkage, binding temperature is 120-130 ℃, finally peels off rolling.
Beneficial effect of the present invention:
(1), the present invention is by formula and process modification, increased the pliability of synthetic leather, have and be similar to the naturally comfortable feel that natural leather has; 3-5 is not easy breakage or tears damage.
(2), adopt aqueous polyurethane coating, can keep permanent and higher firmness.
(3), attapulgite modified, modified Nano bentonite has preferably vapour moisture absorption conductibility thoroughly, makes synthetic leather of the present invention realize the needs of good ventilative moisture absorbing.
(4), synthetic leather of the present invention, in feel, outward appearance and comfort level, all surpass the standard of similar environment-friendly type artificial leather on market, in physics, chemical property, reach respective standard, also can test by various strict environmental protection barriers.
The specific embodiment
An attapulgite modified polyvinyl chloride synthetic leather, comprises surface layer, foaming layer and adhesive linkage, nylon loop,
Described surface layer by following weight portion (kilogram) raw material is made into slurry and makes:
SG-2 type polyvinyl chloride resin 70, SG-5 type polyvinyl chloride resin 30, triethyl citrate 15, epoxyoleic acid butyl ester 30, n-BMA 25, PVC color 6, dibasic lead phosphite 2, lead sulfate tribasic 1, modification infusorial earth 5, aluminium oxide 35, nano-calcium carbonate Ca45, extrude carbon black N660 25, titanate coupling agent TMC-TTS 1, irgasfos 168 1, N-2-(aminoethyl soon)-3-aminopropyl trimethoxysilane 1, Silane coupling agent KH550 2, protein powder 3;
Described foaming layer by following weight portion (kilogram) raw material is made into slurry and makes:
SG-4 type polyvinyl chloride resin 40, SG-6 type polyvinyl chloride resin 80, adipic acid propanediol polyester 35, n-BMA 25, decanedioic acid propanediol polyester 20, n-BMA 25, unifor 2, blowing agent (461DU40) 2, sodium sulfate of polyethenoxy ether of fatty alcohol 1, Imarcaptoacetate dioctyltin 1, calcium stearate 1, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1, attapulgite modified 10, carbon black N220 40, precipitated silica 30, antioxidant 1010 2, 3-aminopropyl trimethoxysilane 2, crosslinking agent TAC 1,
Described attapulgite modified preparation by the following method:
By attapulgite roasting 4-5 hour at 780-800 ℃, after put into 12% hydrochloric acid solution and soak after 3 hours, pull out, dry to moisture 2-3%, add and be equivalent to the nano-carbon powder of its weight 5%, 4% titanate coupling agent TMC-TTS, 3% dibutyl maleate, 4% calcium stearate, mix, at 60-70 ℃, 3500-4000 rev/min is stirred 30-40 minute, oven dry, pulverize;
Described modified alta-mud is prepared by the following method:
(1) 12% salt acid soak 3 hours for bentonite, deionized water washing, then soak 3 hours with 10% sodium hydroxide solution, then with deionized water washing to neutral, oven dry;
(2) dry to add in bentonite and be equivalent to the sodium phosphate trimer, 3% aluminium hydroxide of its weight 5%, 2% sldium lauryl sulfate, at 60-70 ℃, stir 40-50 minute, dry, be ground into powder.
The manufacture method of polyvinyl chloride synthetic leather for described gloves, adopts release liners knife coating technique:
(1), stir after surface layer raw material is mixed, mixing speed is 1200-1500 rev/min, and mixing time is 1-2 hour, filters to obtain surface layer slurry,
(2), then release liners is preheated to 60-70 ℃, by surface layer slurry with 180g/m
2blade coating amount be coated with and scrape release liners surface, at 160-165 ℃, plastify film forming;
(3), stir after will foaming layer slurry mixing, mixing speed is 1200-1500 rev/min, filters to obtain foaming layer slurry;
(4), foaming layer slurry is coated on surface layer, at 175-180 ℃, foam;
(5), re-use aqueous polyurethane slurry and make the laminating of foaming layer and nylon loop as adhesive linkage, binding temperature is 120-130 ℃, finally peels off rolling.
Synthetic leather physical and chemical performance of the present invention is as follows:
Stretch breaking strength/broadwise stretch breaking strength > 350N/3CM radially, footpath/filling-tear resistance > 25N ,-10 ℃ of low temperature flexibility can reach resistance to tortuous 30,000 times, and degradation does not ftracture, and has ventilative and hygroscopicity; Harmful element is detected, can pass through REACH46 item environmental protection test.
Claims (2)
1. an attapulgite modified polyvinyl chloride synthetic leather, comprises surface layer, foaming layer and adhesive linkage, nylon loop, it is characterized in that:
Described surface layer is made into slurry by following raw materials in part by weight and makes:
SG-2 type polyvinyl chloride resin 70-80, SG-5 type polyvinyl chloride resin 30-40, triethyl citrate 10-15, epoxyoleic acid butyl ester 30-35, n-BMA 20-25, PVC color 5-6, dibasic lead phosphite 1-2, lead sulfate tribasic 1-2, modification infusorial earth 5-10, aluminium oxide 30-35, nano-calcium carbonate 40-45, the fast carbon black N660 20-25 that extrudes, titanate coupling agent TMC-TTS 1-2, irgasfos 168 1-2, N-2-(aminoethyl)-3-aminopropyl trimethoxysilane 1-2, Silane coupling agent KH550 1-2, protein powder 3-4,
Described foaming layer is made into slurry by following raw materials in part by weight and makes:
SG-4 type polyvinyl chloride resin 40-50, SG-6 type polyvinyl chloride resin 70-80, adipic acid propanediol polyester 30-35, n-BMA 25-30, decanedioic acid propanediol polyester 15-20, n-BMA 20-25, unifor 1-2, blowing agent 461DU40 1-2, sodium sulfate of polyethenoxy ether of fatty alcohol 1-2, Imarcaptoacetate dioctyltin 1-2, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, attapulgite modified 5-10, carbon black N220 40-45, precipitated silica 30-35, antioxidant 1010 1-2, 3-aminopropyl trimethoxysilane 2-3, crosslinking agent TAC 1-2,
Described attapulgite modified preparation by the following method:
By attapulgite roasting 4-5 hour at 750-800 ℃, after put into 10-15% hydrochloric acid solution and soak after 3-4 hour, pull out, dry to moisture 2-3%, add be equivalent to the nano-carbon powder of its weight 5-8%, the dibutyl maleate of titanate coupling agent TMC-TTS, 3-4% of 3-4%, the calcium stearate of 3-4%, mix, at 60-70 ℃, 3500-4000 rev/min is stirred 30-50 minute, oven dry, pulverize.
2. the manufacture method of attapulgite modified polyvinyl chloride synthetic leather according to claim 1, is characterized in that adopting release liners knife coating technique:
(1), stir after surface layer raw material is mixed, mixing speed is 1200-1500 rev/min, and mixing time is 1-2 hour, filters to obtain surface layer slurry,
(2), then release liners is preheated to 60-70 ℃, by surface layer slurry with 150-200g/m
2blade coating amount be coated with and scrape release liners surface, at 160-165 ℃, plastify film forming;
(3), stir after will foaming layer raw material mixing, mixing speed is 1200-1500 rev/min, filters to obtain foaming layer slurry;
(4), foaming layer slurry is coated on surface layer, at 160-180 ℃, foam;
(5), re-use aqueous polyurethane slurry and make the laminating of foaming layer and nylon loop as adhesive linkage, binding temperature is 120-130 ℃, finally peels off rolling.
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| CN201210406489.3A CN102995446B (en) | 2012-10-23 | 2012-10-23 | Attapulgite-modified polyvinyl chloride synthetic leather and manufacturing method thereof |
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| CN201210406489.3A CN102995446B (en) | 2012-10-23 | 2012-10-23 | Attapulgite-modified polyvinyl chloride synthetic leather and manufacturing method thereof |
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| CN102995446B true CN102995446B (en) | 2014-07-23 |
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| CN103694510A (en) * | 2013-11-29 | 2014-04-02 | 马鞍山市中澜橡塑制品有限公司 | Attapulgite-modified nitrile rubber sealing pad material and preparation method thereof |
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| US4575471A (en) * | 1983-11-28 | 1986-03-11 | Wong Winston W | Structure of dual-face artificial leather and method of manufacture thereof |
| JPH05311581A (en) * | 1992-04-30 | 1993-11-22 | Kanto Leather Cloth Co Ltd | Production of sheetlike material |
| KR100873655B1 (en) * | 2007-07-27 | 2008-12-12 | (주)아이앤에스 | Flame retarded pvc foam artificial leather and manufacturing method thereof |
| CN101349013B (en) * | 2008-08-29 | 2012-03-28 | 黄成源 | Method for making ecological type artificial leather or similar leather object and automatic assembly line thereof |
| CN102505513B (en) * | 2011-11-05 | 2013-04-03 | 合肥市安山涂层织物有限公司 | Gas-permeable moisture-absorption type environmentally-friendly polyvinyl chloride synthetic leather and manufacturing method thereof |
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