LU501327B1 - Method for preparing highly hydrophobic starch-based straws - Google Patents

Method for preparing highly hydrophobic starch-based straws Download PDF

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Publication number
LU501327B1
LU501327B1 LU501327A LU501327A LU501327B1 LU 501327 B1 LU501327 B1 LU 501327B1 LU 501327 A LU501327 A LU 501327A LU 501327 A LU501327 A LU 501327A LU 501327 B1 LU501327 B1 LU 501327B1
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LU
Luxembourg
Prior art keywords
starch
straw
extrusion
hydrophobic
speed
Prior art date
Application number
LU501327A
Other languages
English (en)
Inventor
Chao Yuan
Wei Gao
Bo Cui
Li Guo
Bin Yu
Zhengzong Wu
Pengfei Liu
Original Assignee
Shanke Gongda Shandong Tech Co Ltd
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.)
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Publication date
Application filed by Shanke Gongda Shandong Tech Co Ltd filed Critical Shanke Gongda Shandong Tech Co Ltd
Priority to LU501327A priority Critical patent/LU501327B1/en
Application granted granted Critical
Publication of LU501327B1 publication Critical patent/LU501327B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/203—Solid polymers with solid and/or liquid additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G2400/00—Details not otherwise provided for in A47G19/00-A47G23/16
    • A47G2400/10—Articles made from a particular material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2003/00—Use of starch or derivatives as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0092—Other properties hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/008—Drinking straws
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (7)

Patentanspriiche LU501327
1. Verfahren zum Herstellen eines stark hydrophoben stärkebasierten Strohhalms, folgende Schritte umfassend: (1) Mischen durch Zugeben von Stärke und Nanosilica in einem Hochgeschwindigkeitsmischer, Öffnen eines Zusatzmittelventils und langsames Zugeben von Wasser zu dem Hochgeschwindigkeitsmischer zum Rühren bei niedriger Drehzahl; nach dem Zugeben von Wasser SchlieBen des Ventils und schnelles Rühren der Materialien; Offnen eines Ablassventils, Verpacken und Aufstellen der gemischten Materialien; (2) Extrusionsbehandeln durch gleichmäBiges Zuführen der in Schritt (1) erlangten Materialien zu einem Doppelschneckenextrusionssatz über ein Einzelschneckenzuführsystem und Einstellen einer Zuführschneckendrehzahl, einer Extrusionsschneckendrehzahl und Temperaturen von einer Zone eins bis Zone vier in einer Trommel des Extrusionssatzes; Durchführen der Extrusion über einen Formkopf zum Formen eines Schlauchrohlings; (3) Schneiden durch Kühlen des in Schritt (2) erlangten Schlauchrohlings durch einen Bläser, der an einer Fôrdervorrichtung bereitgestellt ist, und Durchführen der Schneidbehandlung nach dem Kühlen; (4) hydrophobes Modifizieren mittels Dampfprozess durch Anordnen des in Schritt (3) geschnittenen Strohhalms in einen geschlossenen Behälter, der eine ausreichende Menge an Hexamethyldisilazan-Lôsung enthält, und Anordnen des geschlossenen Behälters in einem Trocknungsofen; Durchführen der hydrophoben Modifikation an der Oberfläche des Strohhalms mithilfe von Hexamethyldisilazan-Dampf und Abkühlen auf Raumtemperatur nach der Reaktion, um einen stark hydrophoben stärkebasierten Strohhalm zu erlangen.
2. Herstellungsverfahren nach Anspruch 1, wobei die Nanosilica aus Schritt (1) in einer Menge von 2-10 % der Stärke verwendet wird und das Wasser in einer Menge von 25-40 % der Stärke verwendet wird.
3. Herstellungsverfahren nach Anspruch 1, wobei das Rühren bei niedriger Drehzahl aus Schritt (1) bet 120-300 U/min erfolgt und die Rührdauer 5-10 min beträgt; das schnelle Rühren bei einer Drehzahl von 600-960 U/min erfolgt und die Rührdauer 5-10 min beträgt.
4. Herstellungsverfahren nach Anspruch 1, wobei in Schritt (2) die Zuführschneckendrehzahl 12— U/min beträgt, die Extrusionsschneckendrehzahl 30-90 U/min beträgt und die Temperaturen von Zone eins bis Zone vier in der Trommel des Extrusionssatzes 80-90 °C, 85-105 °C, 90-
120 °C und 100-110 °C betragen.
LU501327
S. Herstellungsverfahren nach Anspruch 1, wobei der Trocknungsofen in Schritt (4) eine Temperatur von 30-50 °C aufweist.
6. Herstellungsverfahren nach Anspruch 1, wobei die Dampfbehandlungszeit in Schritt (4) 1-4 h beträgt.
7. Stark hydrophober stärkebasierter Strohhalm, hergestellt durch das Herstellungsverfahren nach einem der Ansprüche 1-6.
LU501327A 2022-01-25 2022-01-25 Method for preparing highly hydrophobic starch-based straws LU501327B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU501327A LU501327B1 (en) 2022-01-25 2022-01-25 Method for preparing highly hydrophobic starch-based straws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU501327A LU501327B1 (en) 2022-01-25 2022-01-25 Method for preparing highly hydrophobic starch-based straws

Publications (1)

Publication Number Publication Date
LU501327B1 true LU501327B1 (en) 2022-08-09

Family

ID=82848759

Family Applications (1)

Application Number Title Priority Date Filing Date
LU501327A LU501327B1 (en) 2022-01-25 2022-01-25 Method for preparing highly hydrophobic starch-based straws

Country Status (1)

Country Link
LU (1) LU501327B1 (de)

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Effective date: 20220809