CN105586721A - Polylactic acid thermal insulation material and manufacturing method thereof - Google Patents
Polylactic acid thermal insulation material and manufacturing method thereof Download PDFInfo
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- CN105586721A CN105586721A CN201410572801.5A CN201410572801A CN105586721A CN 105586721 A CN105586721 A CN 105586721A CN 201410572801 A CN201410572801 A CN 201410572801A CN 105586721 A CN105586721 A CN 105586721A
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Abstract
The invention relates to a polylactic acid thermal insulation material. The polylactic acid thermal insulation material contains polylactic acid melt-blown micro fibers and polylactic acid filaments. The surface density of the polylactic acid thermal insulation material is 50-500 g/m<2>, and thickness is 2-50 mm, clo value is 0.6-3, thermal insulation ratio is 25-75%, and thermal resistance R value is 0.5-3. The polylactic acid thermal insulation material is good in thermal insulation property, and simple in process. In addition, the invention also provides a manufacturing method for the polylactic acid thermal insulation material.
Description
Technical field
The invention belongs to heat insulating material formed field, be specifically related to a kind of PLA heat insulating material formed and preparation method thereof.
Background technology
Along with the raising of people's living standard, people had both required clothes to meet outside traditional function of cold, more focused onThe decorative beauty of clothes, require clothes fashion novelty, wear attractive in appearance, generous proper, comfortable and easy to wear, again comprehensively considerClothing function, as light and handy in clothes integral quality, good hand touch, non-stimulated, environmentally safe. For traditionalInsulation garment, the textile fabrics taking cotton as filler, although have the features such as soft, fluffy, pro-skin, its matterAmount is large, regain is large, and jaundice easy to change after moisture absorption is mouldy infested. This has just caused cotton as warming filling materialMaterial has progressively exited historical stage. Since 20th century, along with the fast development of macromolecular material, people byStep has found a kind of warming packing material of replace cotton, and polypropylene fibre superfine fibre is heat insulating material formed. The ultra-fine warming material of polypropylene fibreMaterial makes by melt blown technology, allows it possess good heat-insulating property. Polypropylene fibre material light weight, the spy such as non-hygroscopicPoint is that it is as heat insulating material formed advantage. But polypropylene fibre material mainly extracts from oil, to disappearing of natural resourcesConsume larger. In petroleum resources day by day exhausted today, the application of polypropylene fibre does not meet progressive trend of epoch. AndPolypropylene fibre material is shown in that light easily decomposes, and as packing material, it uses birthday noodle short, and after use, imbedding the end, ground can not be naturalDegraded, is a kind of white pollution, and its main treating method is to burn, contaminated environment. In addition, some people pairPolypropylene fibre material allergy, this has also further limited its development.
Poly-lactic acid products is a kind of better performances biodegradable product, and it is to adopt the natural resources such as cornMake and can be recycled for raw material, with corn make poly-lactic acid products to utilize resources synthetically, reduce environmental pollutionSignificant.
The raw material of PLA is lactic acid, and PLA has good biological degradability and biocompatibility. Due to poly-The special construction of lactic acid can be resolved into by microorganism after making acid fiber by polylactic manufactured goods discarded under field conditions (factors)Water and carbon dioxide, can not cause any pollution to environment. Meltblown is a kind of work at high velocity, hot air air-flowWith the lower one-step method production process of the thermoplastic resin of melting directly being made to not weaving fabric of superfine fiber.
Summary of the invention
The object of this invention is to provide the heat insulating material formed and preparation of a kind of good heat insulating, the simple PLA of techniqueMethod.
The technical scheme that realizes the object of the invention is that a kind of PLA is heat insulating material formed, and this PLA is heat insulating material formed to be comprisedPLA melt-blown micro fibre and PLA long filament, the heat insulating material formed surface density of this PLA is 50-500g/m2，Thickness is 2-50mm, and clo value is 0.6-3, and insulation rate is 25-75%, and thermal resistance R value is 0.5-3.
Preferred described PLA melt-blown micro fibre fineness is 2-5 μ m.
Preferred described PLA filament fineness is 0.1-0.5mm.
Manufacture the heat insulating material formed preparation method of PLA, comprise the following steps: first melting at 210 DEG C to be referred toNumber is 100-400g/10min, and the melt-blown PLA pellet section of fusing point 165-175 DEG C is dry at 90-100 DEG C2-4h, sends into and in screw extruder, carries out melt-spraying spinning processing, the spray through high velocity, hot air drawing-off from spinneretAfter the ejection of silk hole, be cooled to fast PLA melt-blown micro fibre by cold air; When PLA melt-blown micro fibre fromSpinneret orifice when ejection by PLA long filament with airflow feeding to ejiction opening place, PLA melt-blown micro fibre is adhered toOn PLA long filament, thereby it is heat insulating material formed on web forming device, to form PLA.
Preferred described melt-blown PLA pellet section dry 4h at 100 DEG C.
The temperature 190-240 DEG C of preferred described melt-spraying spinning processing, spinning speed 100-550m/min, described inThe flow velocity of air-flow is 0.5-5m/s.
The aperture of preferred described spinneret orifice is 0.25-0.3mm.
The present invention has positive effect: acid fiber by polylactic superior performance, have good drapability, slipping,Sucting wet air permeability, good heat resistance and anti-ultraviolet function, this with PLA melt-blown micro fibre and poly-breastAcid long filament adheres to that the PLA of making is heat insulating material formed has light, soft, fluffy, comfortable, pro-skin, a characteristic such as antibacterial,There is good heat-insulating property and biocompatibility, can adapt to heat insulating material formed requirement for clothes.
Detailed description of the invention
Heat insulating material formed PLA melt-blown micro fibre and the PLA long filament of comprising of this PLA, described PLA is melt-blownSuperfine fibre fineness is 2-5 μ m, and described PLA filament fineness is 0.1-0.5mm.
Embodiment mono-:
Be 100g/10min by melt index at 210 DEG C, fusing point 170-175 DEG C of melt-blown PLA pellet section existsAt 100 DEG C, be dried 4 hours; The spinning temperature that melt extrudes spinning processing is 240 DEG C, spinning speed 100m/min;After the spinneret orifice ejection spinneret, be fast cooled to PLA by cold air through high velocity, hot air drawing-off melt-blownSuperfine fibre; In the time that PLA melt-blown micro fibre sprays from spinneret orifice, PLA long filament airflow feeding is extremely sprayedMouth place, sticks on PLA long filament PLA melt-blown micro fibre, and wherein the fineness of PLA long filament is0.2mm, PLA melt-blown micro fibre and PLA long filament proportioning are 100:1, the PLA making is heat insulating material formedSurface density 100g/m2, thickness 3mm, clo value is 1, and warming rate is 50%, and thermal resistance is 1.5.
Embodiment bis-:
Be 200g/10min by melt index at 210 DEG C, fusing point 170-175 DEG C of melt-blown PLA pellet section existsAt 100 DEG C, be dried 4 hours; The spinning temperature that melt extrudes spinning processing is 230 DEG C, spinning speed 150m/min;After the spinneret orifice ejection spinneret, be fast cooled to PLA by cold air through high velocity, hot air drawing-off melt-blownSuperfine fibre; In the time that PLA melt-blown micro fibre sprays from spinneret orifice, PLA long filament airflow feeding is extremely sprayedMouth place, sticks on PLA long filament PLA melt-blown micro fibre, and wherein the fineness of PLA long filament is0.3mm, PLA melt-blown micro fibre and PLA long filament proportioning are 80:1, the PLA making is heat insulating material formedSurface density 200g/m2, thickness 5mm, clo value is 2, and warming rate is 65%, and thermal resistance is 2.5.
Embodiment tri-:
Be 400g/10min by melt index at 210 DEG C, fusing point 165-175 DEG C of melt-blown PLA pellet section existsAt 100 DEG C, be dried 4 hours; The spinning temperature that melt extrudes spinning processing is 225 DEG C, spinning speed200m/min; Be cooled to fast by cold air after the spinneret orifice ejection spinneret through high velocity, hot air drawing-offPLA melt-blown micro fibre; In the time that PLA melt-blown micro fibre sprays from spinneret orifice by PLA long filament gasStream is delivered to ejiction opening place, and PLA melt-blown micro fibre is sticked on PLA long filament, and wherein PLA is longThe fineness of silk is 0.2mm, and PLA melt-blown micro fibre and PLA long filament proportioning are 50:1, the poly-breast makingThe heat insulating material formed surface density 300g/m of acid2, thickness 8mm, clo value is 2.2, and warming rate is 68%, and thermal resistance is2.9。
Above-described specific embodiment, has carried out entering one to object of the present invention, technical scheme and beneficial effectStep describes in detail, and institute it should be understood that and the foregoing is only specific embodiments of the invention, and is not used inRestriction the present invention, within the spirit and principles in the present invention all, any amendment of making, be equal to replacements, improvementDeng, within all should being included in protection scope of the present invention.
Claims (7)
1. a PLA is heat insulating material formed, it is characterized in that: this PLA is heat insulating material formed comprises that PLA is melt-blownSuperfine fibre and PLA long filament, the heat insulating material formed surface density of this PLA is 50-500g/m2, thickness is2-50mm, clo value is 0.6-3, and insulation rate is 25-75%, and thermal resistance R value is 0.5-3.
2. PLA according to claim 1 is heat insulating material formed, it is characterized in that: described PLA is melt-blownSuperfine fibre fineness is 2-5 μ m.
3. PLA according to claim 1 is heat insulating material formed, it is characterized in that: described PLA long filamentFineness is 0.1-0.5mm.
4. the heat insulating material formed preparation method of PLA described in any one in claim 1-3, under comprisingRow step: be first 100-400g/10min by melt index at 210 DEG C, the melt-blown poly-breast of fusing point 165-175 DEG CAcid pellet section is dry 2-4h at 90-100 DEG C, sends into and in screw extruder, carries out melt-spraying spinning processing, warpAfter the spinneret orifice ejection of high velocity, hot air drawing-off from spinneret, be cooled to fast PLA by cold air melt-blown superFine fibre; In the time that PLA melt-blown micro fibre sprays from spinneret orifice by PLA long filament airflow feeding to ejiction openingPlace, sticks on PLA long filament PLA melt-blown micro fibre, thereby on web forming device, forms poly-breastAcid is heat insulating material formed.
5. the heat insulating material formed preparation method of PLA according to claim 4, is characterized in that: described inMelt-blown PLA pellet section dry 4h at 100 DEG C.
6. the preparation method heat insulating material formed according to the PLA described in claim 4 or 5, is characterized in that:Described melt-spraying spinning treatment temperature 190-240 DEG C, spinning speed 100-550m/min, the flow velocity of described air-flow is0.5-5m/s。
7. the preparation method heat insulating material formed according to the PLA described in claim 4 or 5, is characterized in that:The aperture of described spinneret orifice is 0.25-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410572801.5A CN105586721A (en) | 2014-10-24 | 2014-10-24 | Polylactic acid thermal insulation material and manufacturing method thereof |
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| CN201410572801.5A CN105586721A (en) | 2014-10-24 | 2014-10-24 | Polylactic acid thermal insulation material and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505212A (en) * | 2018-03-31 | 2018-09-07 | 郭跃 | A kind of preparation method of imitative goose down shape heat insulating material |
| CN115354446A (en) * | 2022-08-19 | 2022-11-18 | 吉祥三宝高科纺织有限公司 | Polylactic acid thermal insulating flocculus with high fluffiness and high resilience and preparation method thereof |
| CN115895026A (en) * | 2022-10-24 | 2023-04-04 | 吉祥三宝高科纺织有限公司 | Flame-retardant temperature-regulating aerogel and flame-retardant temperature-regulating polylactic acid material prepared from same |
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| EP2177654A1 (en) * | 2008-10-20 | 2010-04-21 | Nordenia Technologies GmbH | Method for manufacturing a non-woven fabric compound material and device for executing the method |
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| CN102166863A (en) * | 2010-12-23 | 2011-08-31 | 天津泰达洁净材料有限公司 | A method for preparing warming composite material |
| CN103422257A (en) * | 2012-05-25 | 2013-12-04 | 财团法人纺织产业综合研究所 | Nonwoven fabric and method and apparatus for producing the same |
| CN103726220A (en) * | 2013-12-17 | 2014-04-16 | 浙江理工大学 | Preparation method of toughened polylactic acid melt-blown nonwoven cloth |
| WO2014100178A1 (en) * | 2012-12-21 | 2014-06-26 | 3M Innovative Properties Company | Method for fabricating water repellent thermal insulation nonwoven material and water repellent thermal insulation nonwoven material |
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| EP2177654A1 (en) * | 2008-10-20 | 2010-04-21 | Nordenia Technologies GmbH | Method for manufacturing a non-woven fabric compound material and device for executing the method |
| CN101509175A (en) * | 2009-01-12 | 2009-08-19 | 嘉兴学院 | Green totally degradable warming material and producing method thereof |
| CN101851830A (en) * | 2010-05-05 | 2010-10-06 | 豆丁乐园（南京）婴儿用品有限公司 | Fully-degradable polylactic acid fiber SMS compound non-woven and manufacturing method thereof |
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| WO2014100178A1 (en) * | 2012-12-21 | 2014-06-26 | 3M Innovative Properties Company | Method for fabricating water repellent thermal insulation nonwoven material and water repellent thermal insulation nonwoven material |
| CN103726220A (en) * | 2013-12-17 | 2014-04-16 | 浙江理工大学 | Preparation method of toughened polylactic acid melt-blown nonwoven cloth |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505212A (en) * | 2018-03-31 | 2018-09-07 | 郭跃 | A kind of preparation method of imitative goose down shape heat insulating material |
| CN115354446A (en) * | 2022-08-19 | 2022-11-18 | 吉祥三宝高科纺织有限公司 | Polylactic acid thermal insulating flocculus with high fluffiness and high resilience and preparation method thereof |
| CN115895026A (en) * | 2022-10-24 | 2023-04-04 | 吉祥三宝高科纺织有限公司 | Flame-retardant temperature-regulating aerogel and flame-retardant temperature-regulating polylactic acid material prepared from same |
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