JP2011000881A5 - - Google Patents

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Publication number
JP2011000881A5
JP2011000881A5 JP2010085129A JP2010085129A JP2011000881A5 JP 2011000881 A5 JP2011000881 A5 JP 2011000881A5 JP 2010085129 A JP2010085129 A JP 2010085129A JP 2010085129 A JP2010085129 A JP 2010085129A JP 2011000881 A5 JP2011000881 A5 JP 2011000881A5
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Japan
Prior art keywords
cylinder
temperature
range
starch
pulp dispersion
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JP2010085129A
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Japanese (ja)
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JP2011000881A (en
JP4846861B2 (en
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Priority to JP2010085129A priority Critical patent/JP4846861B2/en
Priority claimed from JP2010085129A external-priority patent/JP4846861B2/en
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Publication of JP2011000881A5 publication Critical patent/JP2011000881A5/ja
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Publication of JP4846861B2 publication Critical patent/JP4846861B2/en
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Claims (4)

温度制御される細長いシリンダーと、シリンダー内で互いに平行に並び同方向に軸回転する一対の細長いスクリューとを備え、各スクリューは、シリンダーに供給された材料をシリンダーの基端側から先端側へ搬送する複数のボールスクリューと搬送されてきた材料を撹拌・混合する複数のニーディングスクリューが交互に組合されてなるエクストルーダーを用い、パルプ、粉状または粒状のポリビニルアルコールおよび水を撹拌・混合してパルプ分散体を調製し、調製されたパルプ分散体を加熱して前記分散体中のポリビニルアルコールを溶解させ、ポリビニルアルコールが溶解したパルプ分散体を冷却し、冷却されたパルプ分散体を澱粉と混練して澱粉混練体を調製し、調製された澱粉混練体を加熱してα化しα化澱粉混練体を得る生分解性発泡成形物の原料の製造方法。 Equipped with a temperature-controlled elongated cylinder and a pair of elongated screws that are parallel to each other in the cylinder and rotate in the same direction, each screw transports the material supplied to the cylinder from the proximal end side to the distal end side of the cylinder Using an extruder in which a plurality of ball screws and a plurality of kneading screws that stir and mix the conveyed material are alternately combined , pulp, powder or granular polyvinyl alcohol and water are stirred and mixed. A pulp dispersion is prepared, the prepared pulp dispersion is heated to dissolve polyvinyl alcohol in the dispersion, the pulp dispersion in which polyvinyl alcohol is dissolved is cooled, and the cooled pulp dispersion is kneaded with starch. To prepare a starch kneaded body, and heat the prepared starch kneaded body to gelatinize it to obtain a pregelatinized starch kneaded body. For producing a raw material of a foamable molded article. パルプ分散体を調製する際にシリンダーの温度を常温から１００〜１２０℃の範囲まで徐々に上昇させ、パルプ分散体を加熱してポリビニルアルコールを溶解させる際にシリンダーの温度を１３０〜１４０℃の範囲に維持し、パルプ分散体を冷却する際にシリンダーの温度を１００〜１２０℃の範囲から３５〜５０℃の範囲まで徐々に低下させ、澱粉を投入し澱粉混練体を調製する際にシリンダーの温度を２５〜３５℃の範囲に維持し、澱粉混練体を加熱してα化する際にシリンダーの温度を４０〜７０℃の範囲に維持する請求項１に記載の生分解性発泡成形物の原料の製造方法。 When preparing the pulp dispersion, the temperature of the cylinder is gradually raised from room temperature to a range of 100 to 120 ° C., and when the pulp dispersion is heated to dissolve the polyvinyl alcohol, the temperature of the cylinder is in the range of 130 to 140 ° C. When the pulp dispersion is cooled, the temperature of the cylinder is gradually decreased from the range of 100 to 120 ° C. to the range of 35 to 50 ° C., and starch is added to prepare the starch kneaded body. The raw material for the biodegradable foam-molded product according to claim 1 , wherein the temperature of the cylinder is maintained in the range of 40 to 70 ° C when the starch kneaded body is heated and gelatinized by maintaining the temperature in the range of 25 to 35 ° C. Manufacturing method. パルプ分散体を調製する際にシリンダーの温度を常温から７０〜９０℃の範囲まで徐々に上昇させ、パルプ分散体を加熱してポリビニルアルコールを溶解させる際にシリンダーの温度を１３０〜１４０℃の範囲に維持し、パルプ分散体を冷却する際にシリンダーの温度を３５〜５０℃の範囲に維持し、澱粉を投入し澱粉混練体を調製する際にシリンダーの温度を２５〜３５℃の範囲に維持し、澱粉混練体を加熱してα化する際にシリンダーの温度を５０〜９０℃の範囲に維持する請求項１に記載の生分解性発泡成形物の原料の製造方法。 When preparing the pulp dispersion, the temperature of the cylinder is gradually increased from room temperature to a range of 70 to 90 ° C., and when the pulp dispersion is heated and the polyvinyl alcohol is dissolved, the temperature of the cylinder is in the range of 130 to 140 ° C. The temperature of the cylinder is maintained in the range of 35-50 ° C. when cooling the pulp dispersion, and the temperature of the cylinder is maintained in the range of 25-35 ° C. when preparing the starch kneaded body by adding starch. The method for producing a raw material for a biodegradable foamed molded product according to claim 1 , wherein the temperature of the cylinder is maintained in the range of 50 to 90 ° C when the starch kneaded body is heated and gelatinized. パルプ分散体を冷却する際に５〜１０℃の水をさらに加える請求項１〜３のいずれか１つに記載の生分解性発泡成形物の原料の製造方法。 The method for producing a raw material for a biodegradable foamed molding according to any one of claims 1 to 3 , wherein water at 5 to 10 ° C is further added when the pulp dispersion is cooled.
JP2010085129A 2009-05-20 2010-04-01 Extruder and biodegradable foamed material manufacturing method using the same Expired - Fee Related JP4846861B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010085129A JP4846861B2 (en) 2009-05-20 2010-04-01 Extruder and biodegradable foamed material manufacturing method using the same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2009122081 2009-05-20
JP2009122081 2009-05-20
JP2010085129A JP4846861B2 (en) 2009-05-20 2010-04-01 Extruder and biodegradable foamed material manufacturing method using the same

Publications (3)

Publication Number Publication Date
JP2011000881A JP2011000881A (en) 2011-01-06
JP2011000881A5 true JP2011000881A5 (en) 2011-08-11
JP4846861B2 JP4846861B2 (en) 2011-12-28

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JP2010085129A Expired - Fee Related JP4846861B2 (en) 2009-05-20 2010-04-01 Extruder and biodegradable foamed material manufacturing method using the same

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JP (1) JP4846861B2 (en)
WO (1) WO2010134208A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130154151A1 (en) * 2011-12-20 2013-06-20 Kimberly-Clark Worldwide, Inc. Method for Forming a Thermoplastic Composition that Contains a Renewable Biopolymer
US20130206035A1 (en) * 2012-02-14 2013-08-15 Weyerhaeuser Nr Company Composite Polymer
CN102650078B (en) * 2012-03-22 2014-12-03 上海罗洋新材料科技有限公司 Water-vapor sealed-type double-screw extruder
KR20160006725A (en) * 2013-05-08 2016-01-19 엘라스토폴리 오와이 Method and apparatus for the manufacturing of composite material
JP6446235B2 (en) * 2014-10-27 2018-12-26 東芝機械株式会社 Extruder and kneading equipment
KR102089436B1 (en) * 2017-06-07 2020-03-16 (주)현우기공 Detecting Apparatus Capable of Detecting Foreign Materials for Extruder
WO2020156970A1 (en) * 2019-01-30 2020-08-06 Basf Se Method for preparing starch blends
FR3130183A1 (en) * 2021-12-09 2023-06-16 Universite Jean Monnet Saint Etienne Twin-screw extrusion process for wood pellets

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3344762B2 (en) * 1993-03-19 2002-11-18 日本合成化学工業株式会社 Method for producing biodegradable resin foam
JP2838874B2 (en) * 1995-03-08 1998-12-16 日本製紙株式会社 Method for producing molded article comprising raw material containing plant fiber component, and biodegradable molded article
JP2722056B2 (en) * 1995-08-03 1998-03-04 株式会社幸和工業 Buffer material and method of manufacturing the same
JP4246944B2 (en) * 2000-11-17 2009-04-02 三井化学株式会社 Process for producing olefinic thermoplastic elastomer composition
JP5084078B2 (en) * 2001-09-03 2012-11-28 旭化成ケミカルズ株式会社 Method for producing flame retardant polycarbonate resin composition
JP4572516B2 (en) * 2003-07-18 2010-11-04 東レ株式会社 Method for producing resin composition
JP2005199531A (en) * 2004-01-14 2005-07-28 Kankyo Keiei Sogo Kenkyusho:Kk Pellet, its manufacturing method and molded product comprising the pellet

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