CN102167895B - Preparation method of waste wool/polylactic acid ecological composite material - Google Patents
Preparation method of waste wool/polylactic acid ecological composite material Download PDFInfo
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- CN102167895B CN102167895B CN201110129543XA CN201110129543A CN102167895B CN 102167895 B CN102167895 B CN 102167895B CN 201110129543X A CN201110129543X A CN 201110129543XA CN 201110129543 A CN201110129543 A CN 201110129543A CN 102167895 B CN102167895 B CN 102167895B
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- Prior art keywords
- wool
- polylactic acid
- waste
- composite material
- waste wool
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- 210000002268 wool Anatomy 0.000 title claims abstract description 74
- 239000002699 waste material Substances 0.000 title claims abstract description 43
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920000747 poly(lactic acid) Polymers 0.000 title abstract description 13
- 239000004626 polylactic acid Substances 0.000 title abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 39
- 238000007731 hot pressing Methods 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000002253 acid Substances 0.000 claims description 41
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 24
- 235000014655 lactic acid Nutrition 0.000 claims description 12
- 239000004310 lactic acid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005034 decoration Methods 0.000 abstract 2
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000004753 textile Substances 0.000 description 11
- 102000011782 Keratins Human genes 0.000 description 7
- 108010076876 Keratins Proteins 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 235000009814 Luffa aegyptiaca Nutrition 0.000 description 1
- 244000302544 Luffa aegyptiaca Species 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000010906 discarded clothing Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 229940089401 xylon Drugs 0.000 description 1
- -1 yarn Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Biological Depolymerization Polymers (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to a preparation method of a waste wool/polylactic acid ecological composite material, which comprises the following steps: waste wool with good heat insulation performance is used as a reinforcement, polylactic acid is used as a matrix, the wool and the polylactic acid are layered and mixed in a sandwich structure, the upper outer surface and the lower outer surface are both polylactic acid, and the weight percentage of the polylactic acid to the polylactic acid is 60-80: 20-40; and then hot-pressing the laid waste wool/polylactic acid on a hot press, wherein the hot-pressing temperature is 170-180 ℃, the pressure is 4-10MPa, and the hot-pressing time is 2-8min, and cooling to obtain the composite material. The waste wool and the polylactic acid can be in different forms such as fibers, wool tops, yarns or fabrics. The composite material of the invention not only can be completely biodegraded, but also has good heat insulation and sound insulation performance, is insect-proof, moth-proof and moisture-proof, and can be applied to various fields of buildings, interior decoration, automobile interior decoration and the like with high requirements on flame retardance, heat insulation and sound insulation. The invention can recycle a large amount of waste wool and solve the environmental problem caused by white pollution.
Description
Technical field
The present invention relates to waste wool/lactic acid composite material of a kind of fully biodegradable and preparation method thereof, belong to technical field of polymer materials.
Background technology
Along with population increases, the raising of people's living standard is increasingly high to the demand of fiber.China is the production base of global textiles and the core of fiber industry, and textile industry is the conventional column industry of China's national economy and important people's livelihood industry, and the weaving production capacity is half the near the world generally.At present, China's textiles consumer need has been turned to by survival-type consumption and has enjoyed type consumption, becomes the consumption main body from the textile production base gradually.The growth of textiles consumption has brought new problem: the available cultivated area that is used on the one hand to produce natural fiber constantly reduces; The raw material petroleum resources of synthon are in short supply day by day (to it was expected; Petroleum resources only can continue to use about 50 years); The production quantity of existing natural fiber, regenerated fibre and synthon receives the restriction of resource, and its price unlifting pressure continues to increase; On the other hand, the waste textile total amount increases day by day.Because waste textile also is difficult to reuse at present, a large amount of waste textiles are had to as garbage loading embeading or burning disposal.2009, world's fiber total quantity consumed reached 7,050 ten thousand tons, and wherein, the consumption of wool fiber is about 1,100,000 tons.Wool fiber is a keratin fiber,, elegant style comfortable, soft, warming and extremely human consumer's favor, but wool fiber resource-constrained with it, and price is high, and therefore, waste wool is rationally, high-efficiency resource recycling is particularly important.
Waste wool is mainly derived from following aspect: the various waste wools that produce in (1) wool spinning, the woolens engineering, hard waste, refuse yarn, useless cloth etc.; (2) in Woolens, the textile processing, the first-class waste material of the end of a thread, selvedge, Bu Jiao, cloth that produces when cutting out and making; (3) the discarded clothing and textile article etc. in the life.Wool and wool product thermal conductivity are low, heat insulation, sound-proofing properties is good, nonflammable, but the wool moisture-sensitive, easy quilt is damaged by worms.
Caused a lot of personnel's extensive concern about the recycling of waste wool.Wuhan Textile University's invention " a kind of keratin crystal whisker enhanced homogeneous composite fiber and preparation method thereof " (CN101575749); This fiber is formed from the keratinous substrates and the keratin crystal whisker of waste wool by extracting; Keratin crystal whisker is dispersed in the keratinous substrates, forms homogeneous composite fiber.Invention " a kind of man-made fiber and working method thereof " (patent publication No.: CN1594682) man-made fiber and the working method thereof of the superfine powder modification that a kind of employing is derived from natural protein fiber are provided with the modification of natural protein fiber superfine powder; The protein powder body burden is 5%-10% in the differential fiber; Raw materials of chemical fibres component content is 90%-95%, is apt to the hygroscopic property of differential fiber, antistatic property, dyeing behavior etc. in the hope of passing through the protein powder structural reform.Preparation Keratin sulfate article palpus, keratinous substrates need a large amount of chemical reagent to dissolve constitutionally stable Keratin sulfate in waste wool; Because wool is more pliable and tougher, preparation Keratin sulfate superfine powder neither be easy to thing.Therefore, these two kinds of method costs are high, and technical difficulty is big.
Acid fiber by polylactic derives from reproducible plant resources, has lower fusing point (about 170 ℃), and is biodegradable, environmental friendliness.The limiting oxygen index(LOI) of acid fiber by polylactic is between 24% one 26%; Approaching with wool; In air burning slowly, without the pure acid fiber by polylactic of chemical fire-retardant finish can be through the Europe and the U.S. the flame retardant properties test of relevant upholstery, be the ideal selection of building, upholstery.Invention " a kind of full-degradation natural fibre/polylactic acid composite material and preparation method thereof " (CN101121813) provides a kind of full-degradation natural fibre/polylactic acid composite material and preparation method thereof, said natural fiber only to comprise various flaxen fibers, bamboo fibers or its mixture.In addition, " POLYACTIC ACID/vegetable sponge fiber composite material and preparation method thereof " invented (CN101177523) by Shanghai University; Xylon/polylactic acid biomass composite complex factors have been studied to its composite structure, Effect on Performance rule by China Forestry Science Research Institute.Therefore, it is strongthener that present biodegradable polylactic acid thermoplastic composite mainly concentrates on the native cellulose fibre, does not see with the wool to be the matrix material report of strongthener.
Summary of the invention
Based on the shortage of present prior art and the premium properties of waste wool and thermoplastic poly acid fiber; The present invention propose a kind of low cost, simply, waste wool reuse method efficiently: with the good waste wool of heat-proof quality serve as strengthen body, be matrix with the POLYACTIC ACID; Waste wool or wool textile article (loose fiber, yarn, fabric etc.) are compounded in have thermoplasticity, in the middle of the degradable POLYACTIC ACID, the method through hot pressing fusion POLYACTIC ACID prepares matrix material.
Because the waste wool form is various, comprises different shapes such as wool fiber, wool top, yarn or fabric, these forms all can adopt.For ease of mixing, according to the form of the morphology selection acid fiber by polylactic of waste wool,, select fibrous POLYACTIC ACID compound with it if waste wool is fibrous, if waste wool is a fabric, selection POLYACTIC ACID non-woven webs mixes with it.The mass percent of waste wool and POLYACTIC ACID is 60-80: 20-40.
Waste wool/lactic acid composite material of the present invention prepares concrete steps:
(1) will as the wool fiber of wild phase or yarn or fabric with spread layer as the acid fiber by polylactic of matrix or yarn or fabric and mix, POLYACTIC ACID divides several layers, upper and lower two surperficial each one deck, mediant layer; Wool divides several layers, places in the middle of the POLYACTIC ACID, and as sandwich structure, wool, POLYACTIC ACID mass percent are 60-80: 20-40.The fusion in hot pressing of the POLYACTIC ACID on upper and lower surface, in process of cooling, solidify; Form fine and close, hydrophobic, transparent top layer; Can avoid wool to make moist, damage by worms etc., the intermediary wool layer keeps a certain amount of hole, can keep heat insulation, sound damping premium properties;
(2) will spread layer blended wool/POLYACTIC ACID and place mould, hot pressing on thermocompressor, hot pressing temperature is 170-180 ℃, and pressure is 4-10MPa, and hot pressing time is decided according to feeding quantity, is 2-8min.The fusing point of POLYACTIC ACID is about 175 ℃, slightly changes according to the molecular weight difference, and hot pressing temperature is more than the POLYACTIC ACID fusing point; Hot pressing pressure can not be too big under the situation of guaranteeing to be shaped, to guarantee keeping some holes in the wool layer; Feeding quantity is big, and hot pressing time can be long slightly, but the time is oversize, possibly cause wool, POLYACTIC ACID to decompose;
(3) matrix material that step (2) is obtained naturally cooling or water-cooled at normal temperatures obtains a kind of waste wool/lactic acid composite material sheet material;
Waste wool/lactic acid composite material of the present invention is fully biodegradable not only, and heat insulation, sound-proofing properties good, insect protected, mothproof, moistureproof can be applicable to every field such as the building fire-retardant, heat insulation, that sound isolation requirement is high, upholstery, automotive trims.This invention not only can make a large amount of waste wools get utilization, and can solve the environmental problem that white pollution brings.
Embodiment
Below in conjunction with specific embodiment the present invention is described further.
Embodiment 1: waste wool/lactic acid composite material preparation method
(1) will as the wool fiber of wild phase with spread layer as the acid fiber by polylactic of matrix and mix, POLYACTIC ACID divides three layers, upper and lower two surperficial each one deck, middle one deck; Wool divides two-layer, places in the middle of the POLYACTIC ACID, and as sandwich structure, wool, POLYACTIC ACID mass percent are 60: 40;
(2) will spread layer blended wool/POLYACTIC ACID and place mould, hot pressing on thermocompressor, hot pressing temperature is 175 ℃, pressure is 8MPa, hot pressing time 5min;
(3) matrix material that step (2) is obtained naturally cooling at normal temperatures obtains a kind of waste wool/lactic acid composite material sheet material;
Embodiment 2: waste wool/lactic acid composite material preparation method
(1) will as the wool fabric of wild phase with spread as the POLYACTIC ACID non-woven webs of matrix the layer mixes, POLYACTIC ACID divides five layers, upper and lower two the surface each one deck, the centre three layers; Wool divides four layers, places in the middle of the POLYACTIC ACID, and as sandwich structure, wool, POLYACTIC ACID mass percent are 70: 30;
(2) will spread layer blended wool/POLYACTIC ACID and place mould, hot pressing on thermocompressor, hot pressing temperature is 170 ℃, and pressure is 10MPa, and hot pressing time is 5min.
(3) matrix material that step (2) is obtained naturally cooling or water-cooled at normal temperatures obtains a kind of waste wool/lactic acid composite material sheet material.
Claims (3)
1. the preparation method of a waste wool/lactic acid composite material is characterized in that, the waste wool good with heat-proof quality is wild phase, is that matrix prepares matrix material with the POLYACTIC ACID that the weight percent of wool and POLYACTIC ACID is 60-80: 20-40,
Said Composite Preparation concrete steps are:
(1) will as the waste wool of wild phase with spread layer as the POLYACTIC ACID of matrix and mix, POLYACTIC ACID divides several layers, upper and lower two surperficial each one deck, middle several layers; Wool divides several layers, places between the POLYACTIC ACID, as sandwich structure;
(2) will spread layer blended wool/POLYACTIC ACID and place mould, hot pressing on thermocompressor, hot pressing temperature is 170～180 ℃, and pressure is 4～10MPa, and hot pressing time is decided according to feeding quantity, is 2～8min;
(3) matrix material that step (2) is obtained naturally cooling or water-cooled at normal temperatures obtains a kind of waste wool/lactic acid composite material sheet material.
2. the preparation method of a kind of waste wool/lactic acid composite material as claimed in claim 1 is characterized in that, the form of said waste wool is 100% wool fiber, wool top, yarn or fabric.
3. the preparation method of a kind of waste wool/lactic acid composite material as claimed in claim 1 is characterized in that, the form of said POLYACTIC ACID is acid fiber by polylactic, POLYACTIC ACID non-woven webs or polylactic resin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110129543XA CN102167895B (en) | 2011-05-19 | 2011-05-19 | Preparation method of waste wool/polylactic acid ecological composite material |
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| CN201110129543XA CN102167895B (en) | 2011-05-19 | 2011-05-19 | Preparation method of waste wool/polylactic acid ecological composite material |
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| CN102167895A CN102167895A (en) | 2011-08-31 |
| CN102167895B true CN102167895B (en) | 2012-11-28 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103057239A (en) * | 2011-10-22 | 2013-04-24 | 江南大学 | Method for preparing waste terylene-cotton fabric/low-melting-point terylene composite material |
| CN102619023A (en) * | 2012-03-16 | 2012-08-01 | 镇江立达纤维工业有限责任公司 | Polylactic acid composite fiber interior material and preparation method thereof |
| CN103937185B (en) * | 2014-05-13 | 2015-06-10 | 湖北省冠成生物降解塑料制品有限公司 | Full-biodegradable composite film and preparation method thereof |
| CN106519146B (en) * | 2016-10-31 | 2019-06-07 | 江南大学 | A method of discarded hair composite material is prepared using ionic liquid |
| CN108456962B (en) * | 2018-01-25 | 2020-06-23 | 广东兆天纺织科技有限公司 | Functional core-spun yarn and spinning process thereof |
| CN108684401A (en) * | 2018-04-24 | 2018-10-23 | 华贝纳（杭州）毛纺染整有限公司 | Degradable agricultural film and preparation method thereof |
| WO2020101588A1 (en) * | 2018-11-12 | 2020-05-22 | Yünsa Yünlü Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ | A nonwoven surface structure manufactured from wool wastes |
| CN110144760B (en) * | 2019-05-21 | 2020-08-04 | 江南大学 | Preparation method of low-cost heat-insulation sound-insulation waste wool/PVA composite paper |
| CN112454598A (en) * | 2020-11-14 | 2021-03-09 | 太湖县金伊都狐服饰有限公司 | Manufacturing process and device of environment-friendly board |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831739A (en) * | 2010-04-30 | 2010-09-15 | 东升地毯集团有限公司 | Machine-made carpet blended and compounded by polylactic acid fiber and wool and production method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002069796A (en) * | 2000-09-05 | 2002-03-08 | Unitika Textiles Ltd | Woven or knit fabric of polylactic acid |
| JP5010175B2 (en) * | 2006-04-13 | 2012-08-29 | 萩原 敏夫 | Modification process for cellulosic fiber materials |
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- 2011-05-19 CN CN201110129543XA patent/CN102167895B/en not_active Withdrawn - After Issue
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831739A (en) * | 2010-04-30 | 2010-09-15 | 东升地毯集团有限公司 | Machine-made carpet blended and compounded by polylactic acid fiber and wool and production method thereof |
Non-Patent Citations (2)
| Title |
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| JP特开2002-69796A 2002.03.08 |
| JP特开2007-284852A 2007.11.01 |
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