CN1159784A - 淀粉泡沫制的夹层板 - Google Patents
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Abstract
本发明涉及一种以淀粉泡沫为基础可生物降解并可在造纸过程中再循环的夹层板,以及涉及一种制备此夹层板的方法,其中,弹性的或硬化的淀粉泡沫芯用纸和/或纸板制的层状材料覆盖,生产过程连续进行。本发明的优点是改进了使用性能,并能根据有关的使用目的方便地调整生产。
Description
本发明涉及一种以淀粉泡沫为基础的可生物降解的夹层板以及生产这种夹层板的方法。
已知一些复合材料或复合板,它们有一个包封在聚氨酯泡沫或聚苯乙烯泡沫内的芯。这类塑料在废物处理时带来困难,因为它们实际上不腐烂,而且只有在经过分类后才能再循环。
由DE-A-4228779已知一种夹层材料,其中各层包括硬化的淀粉泡沫以及另一个层状材料。生产淀粉泡沫和此夹层材料的方法经过多个阶段。此外,规定淀粉泡沫要充分硬化,以便与其他层状材料实现连接。WO92/16584涉及一种以可分解的淀粉为基础加上合成添加剂组成的可生物降解的聚合物的混合物,用于按传统的工艺技术生产模制件。
本发明的目的是制备可生物降解的夹层板,它可用于许多方面,它的生产方法简单,价格便宜。
此目的通过专利权利要求的特征来达到。
为达到上述目的,本发明的基本思路是制备一种夹层材料,它有一种由纸和/或硬纸板和/或薄膜制的可生物降解的覆盖材料以及有由挤压的淀粉泡沫制的芯,这种夹层材料按一种连续的方法生产,按此方法,淀粉泡沫在挤压过程中制出,就地置于纸幅或硬纸板幅和/或薄膜之间,并在一个连续工作的辊子压力机中压制和加工。纸和淀粉泡沫层的层数是任意的。按这种方法获得的夹层材料,在横截面小于20mm以及淀粉泡沫以软的柔性地置入时,加工成连续的成卷产品。在淀粉泡沫硬化定形和/或横截面大于20mm时,夹层板在压制过程后按规格要求切断。
根据所要求的夹层材料剖面,淀粉泡沫芯的单位体积重量为10至250kg/m3,纸和/或硬纸板和/或薄膜覆盖层的单位面积重量为10至800g/m2。由本发明提供使用的夹层板满足相同的使用目的,作为包装材料;作为建筑材料用于隔冷、隔热或隔音;作为安全运输和防止冲击的材料;作为布告、广告、图片和印刷的显示牌和支承体,以及在造纸过程中可以再循环。
按本发明的夹层板主要优点在于,它可用一种简单的方法生产,按这种方法所有的工艺步骤无中间阶段地连续进行,而且这种方法能易于调整,所以在需要时可以立即制备一种相应规格的刚性或弹性的夹层板,这种夹层板例如有所要求的隔热或隔冷或还有吸收冲击的性能。
下面借助于附图详细说明本发明。其中:
图1生产按本发明的夹层板的方法原理;
图2挤压设备俯视图,它挤出全面的淀粉泡沫芯;
图3挤压设备俯视图,它挤出杆状的淀粉泡沫条作为用于按本发明夹层板的芯;以及
图4挤压设备俯视图,它挤出蛇形缠绕的淀粉泡沫条作为用于按本发明夹层板的芯。
按本发明的一种最佳实施形式,按照本发明的夹层板由淀粉泡沫芯1构成,在它的上面和下面粘贴层状材料2。层状材料2最好由生物可降解的物质组成,如用改性淀粉制的薄膜、纸和/或硬纸板或卡纸。
如图1所示,生产按本发明的夹层板的设备有一台挤压设备3,淀粉泡沫在挤压设备3中制备,并接着通过喷嘴挤出作为带4(图2)、杆状条5(图3)或蛇形缠绕的条6(图4)。按各种制成的形状,带4或条5、6构成夹层板的淀粉泡沫芯1。直接在挤压后,淀粉泡沫芯1被放置在两条层状材料2的带之间。为此,层状材料2从两个设在上、下的料卷7连续展出,通过导向轮8张紧,并沿水平方向上下一起移到一定的距离。因此,层状材料2具有一定的最小抗拉强度。淀粉泡沫芯1沿退卷方向置入层状材料2之间,接着在辊子压力机9中与层状材料2接触,并压制成夹层板。在这一过程中,淀粉泡沫芯1内还有来自挤压工艺的最小剩余水分,所以淀粉仍保持有效的粘结性能,并与层状材料2实现连接。在挤压过程中淀粉的排水可专门调整,或也可以在与层状材料2连接前在淀粉泡沫芯1的接触面上增湿。夹层板离开辊子压力机9后卷绕在卷轴上,或切成要求的长度并堆垛。尤其在具有弹性的淀粉泡沫芯1及厚度小于20mm的夹层板的情况下最好提供这种卷筒,而对于更厚的夹层板最好加以堆垛。采用这种方法可生产出具有例如特殊隔热值或吸收冲击特性的夹层板。根据夹层板的使用目的,淀粉泡沫芯1可具有一定的密度和弹性,或在夹层板内形成空腔,例如加工成淀粉泡沫条5、6。此外,可以将多个淀粉泡沫芯1和层状材料2的层重叠粘结在一起。为了改变所要求的性能,可以改变例如在挤压工艺中加工的原料配方,或改变挤压工艺甚至在时间进程或温度分布图方面的方法步骤。按本发明的夹层板最好具有单位体积重量从约10至250kg/m3的淀粉泡沫芯1和单位面积重量从10至800g/m2的层状材料。
按本发明的夹层板可应用于作为包装材料;作为建筑材料,用于隔热、隔冷、或隔音;作为安全运输和防止冲击的材料;作为布告、广告、图片、印刷的显示牌和支承件;以及,作为结构制品,用于家具业、汽车业、建筑业和包装业,用于园艺和农业。
Claims (11)
1.夹层板由一个淀粉泡沫芯(1)和至少一个层状材料(2)组成,其特征为:淀粉泡沫芯(1)是一种弹性的或已硬化的淀粉泡沫,此夹层板按一种连续的方法生产。
2.按照权利要求1所述之夹层板,其特征为:淀粉泡沫芯(1)由淀粉泡沫制的带(4)、杆状条(5)或蛇形缠绕的条(6)组成。
3.按照权利要求1或2所述之夹层板,其特征为:层状材料(2)用可生物降解的物质组成,最好用改性淀粉、纸和/或硬纸板或卡纸和/或薄膜。
4.按照权利要求1至3之一所述之夹层板,其特征为:淀粉泡沫芯(1)的单位体积重量为10至250kg/m3,层状材料(2)的单位面积重量为10至800g/m2。
5.生产按照权利要求1至4之一所述夹层板的方法有下列步骤:
a)在挤压设备(3)中制造淀粉泡沫和形成溶粉泡沫芯(1);
b)紧接在这之后将淀粉泡沫芯(1)就地连续地置入层状材料(2)之间;以及
c)压缩淀粉泡沫芯(1)并与此同时与层状材料(2)连接,以构成夹层板。
6.按照权利要求5所述之方法,其特征为:淀粉泡沫芯(1)被挤压为扁平带(4)、杆状条(5)或蛇形缠绕的条(6)。
7.按照权利要求5或6所述之方法,其特征为:挤出的淀粉泡沫的单位体积重量为10至250kg/m3。
8.按照权利要求5至7之一所述之方法,其特征为:淀粉泡沫芯(1)与层状材料(2)连接,层状材料(2)由生物可降解的物质组成,最好为改性淀粉、纸和/或硬纸板或卡纸和/或薄膜。
9.按照权利要求5至8之一所述之方法,其特征为:淀粉泡沫芯(1)紧接在挤压后置于层状材料(2)之间,并与之连接。
10.按照权利要求5至9之一所述之方法,其特征为:在淀粉泡沫芯(1)硬化定形和/或夹层板厚度大于20mm时,在方法步骤c)后,接着将夹层板切成预定的长度。
11.按照权利要求1至4之一所述夹层板或按照权利要求5至10之一所述方法生产之夹层板,应用于作为建筑材料,用于吸热、吸冷、吸音、吸收冲击;作为安全运输和防止冲击的包装材料;作为布告、广告、图片的显示牌和支承件;以及作为结构制品,用于家具业、汽车业、建筑业和包装业,用于园艺和农业。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4431755.7 | 1994-09-06 | ||
DE4431755A DE4431755C2 (de) | 1994-09-06 | 1994-09-06 | Sandwichplatte aus Stärkeschaum |
Publications (2)
Publication Number | Publication Date |
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CN1159784A true CN1159784A (zh) | 1997-09-17 |
CN1084251C CN1084251C (zh) | 2002-05-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN95195475A Expired - Fee Related CN1084251C (zh) | 1994-09-06 | 1995-09-05 | 淀粉泡沫制的夹层板其生产方法和用途 |
Country Status (13)
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US (1) | US5910350A (zh) |
EP (1) | EP0781199B1 (zh) |
JP (1) | JPH10505025A (zh) |
KR (1) | KR970705604A (zh) |
CN (1) | CN1084251C (zh) |
AT (1) | ATE198178T1 (zh) |
AU (1) | AU698295B2 (zh) |
CA (1) | CA2199285C (zh) |
DE (2) | DE4431755C2 (zh) |
DK (1) | DK0781199T3 (zh) |
ES (1) | ES2152426T3 (zh) |
FI (1) | FI112928B (zh) |
WO (1) | WO1996007539A1 (zh) |
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US20020068139A1 (en) * | 2000-12-04 | 2002-06-06 | Polak Brent T. | Foamed starch structures & methods for making them |
US7241832B2 (en) * | 2002-03-01 | 2007-07-10 | bio-tec Biologische Naturverpackungen GmbH & Co., KG | Biodegradable polymer blends for use in making films, sheets and other articles of manufacture |
US7297394B2 (en) | 2002-03-01 | 2007-11-20 | Bio-Tec Biologische Naturverpackungen Gmbh & Co. Kg | Biodegradable films and sheets suitable for use as coatings, wraps and packaging materials |
US7172814B2 (en) * | 2003-06-03 | 2007-02-06 | Bio-Tec Biologische Naturverpackungen Gmbh & Co | Fibrous sheets coated or impregnated with biodegradable polymers or polymers blends |
DE10352751B3 (de) * | 2003-11-12 | 2005-07-07 | Holzmüller, Günter | Vorrichtung zur kontinuierlichen Verarbeitung von Stärke oder stärkehaltiger Werkstoffe zu plattenförmigen, geschäumten Formkörpern |
GB2428628A (en) * | 2005-07-14 | 2007-02-07 | Green Light Products Ltd | Multilayer material useful for packaging |
US7989524B2 (en) * | 2005-07-19 | 2011-08-02 | The United States Of America, As Represented By The Secretary Of Agriculture | Fiber-reinforced starch-based compositions and methods of manufacture and use |
US20070021515A1 (en) * | 2005-07-19 | 2007-01-25 | United States (as represented by the Secretary of Agriculture) | Expandable starch-based beads and method of manufacturing molded articles therefrom |
JP2011521117A (ja) * | 2008-05-15 | 2011-07-21 | ミードウエストベコ・コーポレーション | 波型媒体を有さない、表面特性が改善された合わせ板材 |
FR2940331B1 (fr) * | 2008-12-18 | 2010-12-17 | Georgia Pacific France | Procede de fabrication d'une feuille de papier delitable, utilisation de la feuille pour la fabrication d'un mandrin formant support de rouleau, feuille de papier delitable et mandrin constitue d'au moins une desdites feuilles |
FR2940330B1 (fr) | 2008-12-18 | 2017-06-23 | Georgia-Pacific France | Feuille de papier delitable dans l'eau, mandrin pour rouleau de papier constitue d'une telle feuille |
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FR2948696A1 (fr) | 2009-08-03 | 2011-02-04 | Georgia Pacific France | Procede de fabrication d'une feuille de papier delitable, feuille de papier delitable, mandrin constitue d'au moins une desdites feuilles |
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US9186868B2 (en) | 2010-03-16 | 2015-11-17 | 3Form, Llc | Laminate panels produced from biopolymers |
DE102011014740A1 (de) | 2011-03-22 | 2012-09-27 | Hochschule Merseburg (Fh) | Bioverbundwerkstoff |
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AT516084A1 (de) * | 2014-07-16 | 2016-02-15 | Intier Automotive Eybl Gmbh Ebergassing & Co Ohg | Verfahren zur Herstellung eines flächigen Verbundmaterials sowie flächiges Verbundmaterial für Verkleidungsteile von Kraftfahrzeugen |
US10400105B2 (en) | 2015-06-19 | 2019-09-03 | The Research Foundation For The State University Of New York | Extruded starch-lignin foams |
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-
1994
- 1994-09-06 DE DE4431755A patent/DE4431755C2/de not_active Expired - Fee Related
-
1995
- 1995-09-05 US US08/793,939 patent/US5910350A/en not_active Expired - Fee Related
- 1995-09-05 CA CA002199285A patent/CA2199285C/en not_active Expired - Fee Related
- 1995-09-05 AU AU35220/95A patent/AU698295B2/en not_active Ceased
- 1995-09-05 CN CN95195475A patent/CN1084251C/zh not_active Expired - Fee Related
- 1995-09-05 WO PCT/EP1995/003488 patent/WO1996007539A1/de active IP Right Grant
- 1995-09-05 DK DK95931992T patent/DK0781199T3/da active
- 1995-09-05 DE DE59508914T patent/DE59508914D1/de not_active Expired - Lifetime
- 1995-09-05 EP EP95931992A patent/EP0781199B1/de not_active Expired - Lifetime
- 1995-09-05 ES ES95931992T patent/ES2152426T3/es not_active Expired - Lifetime
- 1995-09-05 JP JP8509209A patent/JPH10505025A/ja active Pending
- 1995-09-05 AT AT95931992T patent/ATE198178T1/de active
-
1997
- 1997-03-04 KR KR1019970701418A patent/KR970705604A/ko not_active Application Discontinuation
- 1997-03-05 FI FI970938A patent/FI112928B/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI970938A (fi) | 1997-03-05 |
AU698295B2 (en) | 1998-10-29 |
ES2152426T3 (es) | 2001-02-01 |
CA2199285A1 (en) | 1996-03-14 |
AU3522095A (en) | 1996-03-27 |
US5910350A (en) | 1999-06-08 |
CA2199285C (en) | 2005-10-18 |
FI112928B (fi) | 2004-02-13 |
EP0781199A1 (de) | 1997-07-02 |
KR970705604A (ko) | 1997-10-09 |
DE4431755C2 (de) | 2000-05-25 |
CN1084251C (zh) | 2002-05-08 |
FI970938A0 (fi) | 1997-03-05 |
ATE198178T1 (de) | 2001-01-15 |
DK0781199T3 (da) | 2001-04-17 |
EP0781199B1 (de) | 2000-12-20 |
DE4431755A1 (de) | 1996-03-07 |
JPH10505025A (ja) | 1998-05-19 |
WO1996007539A1 (de) | 1996-03-14 |
DE59508914D1 (de) | 2001-01-25 |
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