WO1991005020A1 - Pieces moulees en matiere contenant du bois ou de la cellulose et procede de fabrication - Google Patents

Pieces moulees en matiere contenant du bois ou de la cellulose et procede de fabrication Download PDF

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Publication number
WO1991005020A1
WO1991005020A1 PCT/DE1990/000753 DE9000753W WO9105020A1 WO 1991005020 A1 WO1991005020 A1 WO 1991005020A1 DE 9000753 W DE9000753 W DE 9000753W WO 9105020 A1 WO9105020 A1 WO 9105020A1
Authority
WO
WIPO (PCT)
Prior art keywords
chips
wood
binder
potato pulp
shaped body
Prior art date
Application number
PCT/DE1990/000753
Other languages
German (de)
English (en)
Inventor
Frank Mayer
Aloys HÜTTERMANN
Alireza Kharazipour
Original Assignee
Pelz, Peter
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pelz, Peter filed Critical Pelz, Peter
Publication of WO1991005020A1 publication Critical patent/WO1991005020A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse

Definitions

  • the present invention relates to moldings made from wood or cellulose-containing substances and to a process for their production.
  • the moldings are, for example, chipboard, fiberboard, molded articles and the like.
  • Chipboard is made from wood shavings and other wood waste, and binders are added to connect the wood shavings.
  • the amount of binder is generally about 3. to 15 wt .-%, based on dry wood. It hangs u. a. on the type of binder and is z.
  • B. isocyanates about 3 to 5 wt .-%, with formaldehyde resins about 9 to 13 wt .-%, based on dry wood.
  • the quality of the chipboard depends crucially on the amount of binder used. If one tries to reduce the amount of binder used, for example for price reasons, low-quality chipboard is generally obtained which has inadequate physical properties, for example inadequate swelling behavior and inadequate dimensional stability, such as e.g. B. transverse tensile strength and bending strength.
  • Potato pulp is produced in large quantities when potato starch is obtained as a waste product. So far, it can only be used in small quantities as animal feed. To this end, the potato pulp is either released unchanged, undergoing rapid microbial changes due to its high moisture content of about 90%, or it is dried to give a product point of about 10 to 75% by weight of moisture. A technical utilization of this product has so far not been successful.
  • the object of the present invention is to provide a shaped body made of wood or cellulose-containing substances in which the proportion of the wood or cellulose-containing chips has been partially or completely replaced by potato pulp.
  • the use of potato pulp instead of wood chips or the partial replacement of wood chips with potato pulp improves the physical properties, such as the swelling properties, the wet strength, the transverse tensile strength and the bending strength of chipboard, while at the same time reducing the proportion of binder ⁇ can.
  • the DIN values for the swelling time and the transverse tensile strength are improved several times when potato pulp is added when using, for example, isocyanates as binders compared to the use of wood chips alone.
  • the moldings according to the invention generally contain 5 to 100% by weight of potato pulp, preferably 25 to 75% by weight and particularly preferably 30 to 50% by weight. At such levels of potato pulp, the content of bonding agents of the form-which, depending on the requirements of the moldings with respect to stability, for example * with the use of isocyanates, to about 1 to 5 wt .-%, preferably about 1 to 3 wt % and particularly preferred reduce about 2% by weight.
  • a product with a moisture content of about 5 to 95% by weight, preferably of about 5 to 50% by weight, can be used as the potato pulp.
  • the pressing of the shaped bodies becomes more difficult, the presses must have a possibility of draining the pressed water.
  • Suitable binders are all binders customarily used for the production of moldings from wood or cellulose-containing substances, such as, for example, isocyanate (polyurethane) resins, urea-formaldehyde resins, melamine-formaldehyde resins, henol-formaldehyde resins. Resins, tannins, binders produced from microorganisms, as described, for example, in DE-PS 36 21 218, and the like.
  • chips are used for the moldings according to the invention.
  • the chips usually used for this purpose are used.
  • wood chips are used for the middle layer, which have approximately the following average dimensions: length 10 to 40 mm, width 3 to 17 mm, thickness 0.1 to 0.4 mm. Such chips are commonly referred to as middle layer chips.
  • Chips which have approximately the following average dimensions are used for the outer layers: length 0.1 to 0.7 mm, width 0.05 to 0.2 mm and thickness 0.01 to 0.2 mm. Such chips are generally referred to as top layer chips.
  • aqueous paraffin emulsion is generally used as the hydrophobizing agent, for example a 50% aqueous paraffin emulsion which is used in particular when isocyanates are used, or an emulsion composed of 49.6% paraffin, 49.6% water and 0.8 % 25% ammonia, for example when using urea-formaldehyde resins. about 0.5 to 2% by weight per dry wood or mixture of wood and pulp (dry substance) are used on the emulsion of such a hydrophobizing agent.
  • the moldings according to the invention in particular chipboard, can be produced as follows:
  • the potato pulp is mixed with them and then with the binder or with a mixture of binder and other additives in a gluing drum, e.g. B. mixed by the rolling process or sprayed with the binder.
  • a gluing drum e.g. B. mixed by the rolling process or sprayed with the binder.
  • the glued chips are scattered into mats and pressed.
  • the panels After about two days, the panels can be hemmed, sanded and checked for their physical and technological properties.
  • Middle-layer and top-layer chips with an average moisture content of about 3% were used together with potato pulp and binder to produce chipboard.
  • the binders were mixed with a stirrer and homogenized with the addition of a hydrophobicizing emulsion consisting of a 50% aqueous paraffin emulsion.
  • Pine cutting chips were mixed with potato pulp in a laboratory sizing drum after the circulation process and sprayed with binding agent.
  • the glued chips were spread by hand into 30 x 50 cm mats. From this, compacts were pressed at a temperature of 190 ° C at a pressure of 30 kp / cm * with a pressing duration of 5 min. The plates were removed from the press and air cooled. After two days, the panels were hemmed, sanded and examined for their properties. Before the investigations, the plates were air-conditioned for two days at 20 ° C and a relative air humidity of 65%.
  • Middle class 500 g middle class chips
  • Thick bulk density cross tensile. Thickness swelling
  • Middle class 1000 g middle class chips
  • Top layers 500 g top layer chips
  • Thick bulk density cross tensile Thickness swelling mm kg / m 3 N / mm 2 2 h 24 h
  • the plates made using potato pulp have much better values of transverse tensile strength and thickness swelling than plates without potato pulp.
  • Table 4 single-layer plate binders such as Tab. 3; 7.5% based on dry wood 5 min pressing time
  • Thick bulk density cross tensile. Thickness swelling
  • Binder urea-formaldehyde resin as example 2, 7.4% solid resin, based on dry wood
  • Thick bulk density cross tensile Thickness swelling mm kg / m 3 N / mm 2 2 h 24 h
  • Binder etc. as above 1500 g middle layer chips 500 g pulp, dried and ground
  • Thick bulk density cross tensile. Thickness swelling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

Pièces moulées telles que, par exemple, contreplaqués, panneaux de fibres, stratifiés moulés et similaire consistant en un mélange de: 0 à 95 % en poids de copeaux de matières contenant du bois ou de la cellulose et 5 à 100 % en poids de pulpe de pomme de terre avec une teneur en humidité de 5 à 95 % en poids, ainsi que 1 à 15 % en poids de liant par rapport au poids total du mélange de copeaux et de pulpe de pomme de terre. Les pièces moulées présentent de bonnes propriétés physiques et technologiques.
PCT/DE1990/000753 1989-10-05 1990-10-04 Pieces moulees en matiere contenant du bois ou de la cellulose et procede de fabrication WO1991005020A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893933279 DE3933279C1 (fr) 1989-10-05 1989-10-05
DEP3933279.9 1989-10-05

Publications (1)

Publication Number Publication Date
WO1991005020A1 true WO1991005020A1 (fr) 1991-04-18

Family

ID=6390888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1990/000753 WO1991005020A1 (fr) 1989-10-05 1990-10-04 Pieces moulees en matiere contenant du bois ou de la cellulose et procede de fabrication

Country Status (5)

Country Link
CS (1) CS479290A3 (fr)
DE (1) DE3933279C1 (fr)
IE (1) IE903558A1 (fr)
PL (1) PL287174A1 (fr)
WO (1) WO1991005020A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306439C1 (de) * 1993-03-02 1994-08-11 Pfleiderer Unternehmensverwalt Formkörper, insbesondere in Form einer Faserplatte, und Verfahren zu seiner Herstellung
EP0613906A1 (fr) * 1993-03-02 1994-09-07 PFLEIDERER UNTERNEHMENSVERWALTUNG GmbH & Co KG Article moulé, en particulier en forme de panneau de fibres
EP0613905A1 (fr) * 1993-03-02 1994-09-07 Aloys Prof. Dr. Hüttermann Article moulé biodégradable, en particulier pot de fleurs biodégradable
WO1994023914A1 (fr) * 1993-04-17 1994-10-27 Glunz Ag Procede de fabrication de panneaux agglomeres fibreux
US6440204B1 (en) 1999-03-31 2002-08-27 Penford Corporation Packaging and structural materials comprising potato peel waste
CN1108345C (zh) * 2000-06-16 2003-05-14 董忠蓉 以魔宇为主要原料制成的一次性使用用品

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020969C1 (en) * 1989-10-05 1991-07-18 Mayer, Frank, Prof. Dr., 3400 Goettingen, De Moulding with improved mechanical properties and density - comprises mixt. of wood or cellulose material shavings and potato pulp, waste paper and binder
DE4340518C2 (de) * 1993-11-29 1996-03-07 Pfleiderer Unternehmensverwalt Formkörper auf der Basis von Holz- und/oder Cellulosefasern
DE4306441C1 (de) * 1993-03-02 1994-04-28 Wibmer & Co Kg Verrottbarer Formkörper auf der Basis von natürlichen pflanzlichen oder tierischen Fasern und Verfahren zu seiner Herstellung
NL1001959C2 (nl) * 1995-12-21 1997-06-24 Univ Delft Tech Werkwijze voor het verwerken van bollen.
FI970158A (fi) 1997-01-14 1998-07-15 Neste Oy Uusi kuitulevyliima
FI101690B1 (fi) 1997-01-14 1998-08-14 Neste Oy Kuitulevyjen valmistusmenetelmä
DE10231994A1 (de) * 2002-07-15 2004-02-12 Panel Tuning Gmbh Verfahren zur Herstellung von Biomassefestbrennstoff
WO2005116559A1 (fr) * 2004-05-24 2005-12-08 Basf Aktiengesellschaft Corps moules realises dans des materiaux contenant de la lignocellulose

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506929A (en) * 1936-12-30 1939-06-07 Scholten Chemische Fab Manufacture of masses containing an absorbent for a liquid or liquefied constituent of the mass

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506929A (en) * 1936-12-30 1939-06-07 Scholten Chemische Fab Manufacture of masses containing an absorbent for a liquid or liquefied constituent of the mass

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Die St{rke, 24. Jahrgang, Nr. 9, September 1972, L. Plath: "Die Rolle von St{rkeprodukten bei der Verleimung von Holzwerkstoffen mit Kunstharz-Leimen", Seiten 306-312 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4306439C1 (de) * 1993-03-02 1994-08-11 Pfleiderer Unternehmensverwalt Formkörper, insbesondere in Form einer Faserplatte, und Verfahren zu seiner Herstellung
EP0613906A1 (fr) * 1993-03-02 1994-09-07 PFLEIDERER UNTERNEHMENSVERWALTUNG GmbH & Co KG Article moulé, en particulier en forme de panneau de fibres
EP0613905A1 (fr) * 1993-03-02 1994-09-07 Aloys Prof. Dr. Hüttermann Article moulé biodégradable, en particulier pot de fleurs biodégradable
WO1994023914A1 (fr) * 1993-04-17 1994-10-27 Glunz Ag Procede de fabrication de panneaux agglomeres fibreux
US6440204B1 (en) 1999-03-31 2002-08-27 Penford Corporation Packaging and structural materials comprising potato peel waste
US6524639B1 (en) 1999-03-31 2003-02-25 Saul Rogols Composite food product comprising potato peel product
US6547867B2 (en) 1999-03-31 2003-04-15 Penford Corporation Non-edible composite material comprising potato peel product
CN1108345C (zh) * 2000-06-16 2003-05-14 董忠蓉 以魔宇为主要原料制成的一次性使用用品

Also Published As

Publication number Publication date
CS276387B6 (en) 1992-05-13
IE903558A1 (en) 1991-04-10
CS479290A3 (en) 1992-05-13
PL287174A1 (en) 1991-09-23
DE3933279C1 (fr) 1990-07-19

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