WO2003002638A1 - Materiau composite biodegradable et procede pour fabriquer des produits jetables au moyen dudit materiau - Google Patents

Materiau composite biodegradable et procede pour fabriquer des produits jetables au moyen dudit materiau Download PDF

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Publication number
WO2003002638A1
WO2003002638A1 PCT/CN2002/000388 CN0200388W WO03002638A1 WO 2003002638 A1 WO2003002638 A1 WO 2003002638A1 CN 0200388 W CN0200388 W CN 0200388W WO 03002638 A1 WO03002638 A1 WO 03002638A1
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WO
WIPO (PCT)
Prior art keywords
weight
starch
plant fiber
fiber material
molding compound
Prior art date
Application number
PCT/CN2002/000388
Other languages
English (en)
Chinese (zh)
Inventor
Tet Siong Ong
Original Assignee
G5 Manufacturing (Suzhou) 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.)
Filing date
Publication date
Application filed by G5 Manufacturing (Suzhou) Ltd. filed Critical G5 Manufacturing (Suzhou) Ltd.
Publication of WO2003002638A1 publication Critical patent/WO2003002638A1/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
    • 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
    • C08L3/02—Starch; Degradation products thereof, e.g. dextrin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea

Definitions

  • the invention relates to a fully degradable material and a method for preparing a single-use, degradable product by using the material.
  • the above-mentioned disposable degradable products include disposable tableware, food packaging, article packaging, and disposable medical supplies. Background technique
  • the first category is made by the pulp molding method; the second category is made from whole starch.
  • the third category is made of decomposable plastic materials; the fourth category is made of plant fiber materials.
  • the purpose of the present invention is to provide a fully degradable material with fast degradation, low cost, good performance, simple process and strong practicability, and a method for preparing disposable products by using the material.
  • the first technical solution adopted by the total degradable material of the present invention is: a fully degradable material for preparing disposable products, containing raw materials and weight percentages of the following components: amino molding compound 35-55% by weight;
  • Plant fiber material 2 ⁇ 3% by weight
  • the plant fiber material is one of rice husk, crop straw, bagasse, corn cob, and peanut husk.
  • the formula is suitable for the preparation of disposable biodegradable tableware, food packaging and disposable medical supplies.
  • the amino molding compound in the scheme plays the role of toning and binder in the formula
  • starch plays the role of degradation, aldehyde trapping and filler in the formula
  • the intermediate calcium carbonate acts as a degrading agent, modification and filler in the formula.
  • the plant fiber material plays a filler role in the formula.
  • the "amino molding compound” in the present invention refers to a thermosetting plastic formed by reacting a monomer containing an amino group ( ⁇ ) or an amide group (-CONH-) with formaldehyde. It belongs to General Plastics. It usually includes the following materials:
  • -Urea-formaldehyde plastic which is based on urea-formaldehyde resin, ct-fiber as filler, and added with curing agent, lubricant, and colorant.
  • the color of the system is jade, and it is also called electric jade plastic;
  • -Urine melamine plastic which is based on urine melamine formaldehyde resin, ⁇ -fiber as filler, and added lubricant, colorant, etc .;
  • Triammonium formaldehyde plastic which is based on triammonium chloride formaldehyde resin, ⁇ -fiber as filler, and added lubricant, colorant, etc .;
  • -Melamine plastic (melamine benzoguanidine plastic), which is based on melamine benzoguanidine formaldehyde resin, ct-fiber as the filler, titanium dioxide as the filler, and adding lubricants.
  • starch in the present invention includes not only starch, but also flour, soy flour, and the like containing starch as a main component.
  • Plant fiber material 2 ⁇ 3% by weight
  • Plant fiber material 2 ⁇ 3% by weight.
  • the second technical solution adopted by the fully degradable material of the present invention is: a fully degradable material for preparing disposable products, containing raw materials and weight percentages of the following components-amino molding compound
  • Plant fiber material 20 ⁇ 25% by weight
  • the plant fiber material is one of rice husk, crop straw, bagasse, corn cob, and peanut husk.
  • the degradation materials described in this solution can be completely degraded within 6-12 months.
  • This formula is suitable for the preparation of general goods packaging.
  • the amino molding compound in the scheme plays the role of toning and binder in the formula
  • starch plays the role of degradation
  • the intermediate calcium carbonate acts as a degrading agent, modification and filler in the formula.
  • the plant fiber material plays a filler role in the formula.
  • the fully degradable material of the present invention can be used to prepare disposable products including, but not limited to, fully degradable tableware, food packaging, article packaging, and disposable medical supplies.
  • the present invention provides a method for preparing a disposable product using the above-mentioned fully degradable material.
  • a method for preparing a disposable product using a fully degradable material including the following steps:
  • the initial pressure unit pressure 300 ⁇ 450kg / cm 2 , the temperature is 120 ⁇ 180 ° C;
  • the unit pressure is 300 ⁇ 450kg / cm 2
  • the temperature is 300 ⁇ 450kg / cm 2
  • a method for preparing a disposable product using a fully degradable material including the following steps-(1) pulverizing the plant fiber material to 100-200 mesh;
  • the unit pressure is 300 ⁇ 450kg / cm 2
  • the temperature is 120 ⁇ 180 ° C
  • the heat preservation and pressure holding curing time is 25 ⁇ 80 seconds
  • the amino molding compound, starch, and medium calcium carbonate are powdered, and the particle size of the amino molding compound and starch is above 140 mesh. If the configured raw materials do not meet the particle size requirements, It should also be crushed to 140 mesh.
  • the unit pressure is preferably 370 to 430 kg / cm 2 and the temperature is 140 to 160 ° C.
  • the unit pressure is preferably 370 to 430 kg / cm 2
  • the temperature is 140 to 160 ° C
  • the heat preservation and pressure curing time is 40 to 60 seconds.
  • the third step initial pressure and the fourth step forming pressure of the above technical solution may be continuously completed by using the same pair of molds, or may be separately pressed by using two pairs of molds.
  • the post-processing mainly includes trimming and disinfection.
  • the disinfection can be disinfected by ultraviolet sterilization, and the temperature is controlled at about 300 ° C. Other conventional disinfection methods can also be used. Due to the application of the above technical solutions, the present invention has the following advantages and effects compared with the prior art:
  • PSB The Singapore Productivity and Standards Board
  • the Singapore Productivity and Standards Board (PSB) the statutory management board with 1,000 employees in Singapore, conducts migration testing. PSB helps local companies access global markets by ensuring that processes and products directly adapt to international standards.
  • EN71-3 is a European standard approved by the European Committee for Standardization (CEN) on December 13, 1994.
  • CEN's members are the National Standards Institutes of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. According to CEN / CENELEC internal regulations, these countries must implement this European Standard.
  • Elemental biodegradable materials EN71 Part 3 1995 Antimony SB (mg / kg) ⁇ 5.0 maximum 60 As As (mg / kg) ⁇ 5.0 maximum 25 Barium Bs (mg / kg) ⁇ 5.0 maximum 250 cadmium Cd (mg / kg) ⁇ 0.5 maximum 50 chromium Cr (mg / kg) ⁇ 0.5 maximum 25 lead Pb (mg / kg) ⁇ 5.0 maximum 90 mercury Hg (mg / kg) ⁇ 0.5 maximum 25 selenium Se (mg / kg) ⁇ 5.0 maximum 500 (6), explanation
  • Sample test results (column 2 of the test results table) are far from their upper limits.
  • the invention has fast degradation speed, high temperature resistance, freeze resistance, water resistance and good strength. According to GB6344 -1996 "Determination of tensile strength and elongation at break of soft foam polymer materials" and GB3681-2000 “Test method for atmospheric exposure of plastics", the physical and chemical properties of the product of the present invention are tested and determined as:
  • the product of the present invention is white or milky white, has a slightly scented food, and has an attractive and hygienic appearance. It is generally close to the existing disposable PS tableware, and some of them even exceed the disposable PS tableware.
  • the preparation method of the present invention is dry hot press forming, and there is no pollution discharge in the production process, and the processing process is simple.
  • the product of the present invention is hot-pressed twice, and an exhaust and retraction process is provided between the two hot-presses, which has played a positive role in further improving the quality of the product and has achieved significant results.
  • the disposable product of the present invention After the disposable product of the present invention is used, it can be recovered and crushed to be processed into fish storage feed, and it can also be naturally degraded into organic fertilizer.
  • the present invention is rich in raw materials and relatively low in cost. Market competitiveness is an ideal substitute for replacing the existing plastic foam products. detailed description
  • Embodiment 1 A single-use fully degradable tableware (with a degradation period of 180 days or within 6 months) is manufactured according to the following formula and preparation process. The ingredients and weight percentages of the formula are:
  • Amino molding compound powder 40% by weight
  • the preparation process is:
  • Embodiment 2 A single-use fully degradable medical disc (degradation period is 6 to 12 months) is manufactured according to the following formula and preparation process. The raw materials and weight percentages of the formula are: 50% by weight of amino molding compound powder;
  • the preparation process is:
  • Embodiment 3 A single-use item package (degradation period is 6-12 months) is manufactured according to the following formula and preparation process. The raw materials and weight percentage of the formula are-50% by weight of amino molding compound powder;
  • Example 4 Example 5
  • Example 6 Example 7
  • Example 8 Example 9 Amino molding compound powder 36 44 55 44 55 45 Starch 58 47 33 42 18 22
  • Medium calcium carbonate powder 4 6 9 11 4 6
  • Rice bran 2 3 2 3 21 24 Water----2 3

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Biological Depolymerization Polymers (AREA)

Abstract

L'invention concerne un matériau composite biodégradable et un procédé pour fabriquer des produits jetables. Ce matériau comprend 35 à 55 % en poids de poudre moulable d'urée-formaldéhyde, 33-58 % en poids d'amidon, 4 à 11 % en poids de CaCO3, 2 à 3 % en poids de fibres végétales. Ces dernières peuvent être constituées par une matière quelconque choisie par les matières suivantes : écorce de riz, canne à sucre, maïs, coque de cacahuète et paille de végétaux. Le procédé selon l'invention consiste à broyer les matières premières ; mélanger et formuler les matières premières ; mouler et façonner les produits deux fois, la pression spécifique étant fixée à 300-450 kg/cm2, la température étant comprise entre 120 et 180 °C, la température et la pression étant maintenues pendant 25 à 80 secondes ; démouler les produits, puis effectuer une finition. Les avantages de l'invention sont les suivants : dégradation plus rapide, faibles coûts, bonnes propriétés, technologie simple, facilité de mise en oeuvre, possibilité d'appliquer ce procédé pour la fabrication de produits jetables, d'emballages alimentaires, d'emballages d'articles, et d'articles médicaux jetables, etc.
PCT/CN2002/000388 2001-06-06 2002-06-04 Materiau composite biodegradable et procede pour fabriquer des produits jetables au moyen dudit materiau WO2003002638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01113678.2 2001-06-06
CNB011136782A CN1151206C (zh) 2001-06-06 2001-06-06 一种全降解材料以及利用该材料制备一次性制品的方法

Publications (1)

Publication Number Publication Date
WO2003002638A1 true WO2003002638A1 (fr) 2003-01-09

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CN (1) CN1151206C (fr)
WO (1) WO2003002638A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230201B (zh) * 2008-01-14 2010-10-06 罗家宏 可生物降解植物纤维材料及其加工工艺
CN102504559A (zh) * 2011-11-04 2012-06-20 山东省塑料研究开发中心 采用天然秸秆加工全降解可回收塑料的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101449910B (zh) * 2007-12-08 2010-11-24 侯玉栋 植物秸杆可降解一次性卫生筷及其制作方法
CN102019637A (zh) * 2010-10-21 2011-04-20 张娅儿 一种植物纤维降解集成电路托盘的制造方法
CN105949802A (zh) * 2016-03-18 2016-09-21 武志学 可生物降解植物纤维材料及其加工工艺
CN108004843A (zh) * 2017-11-03 2018-05-08 苏州梅香雅筑工艺品有限公司 一种防伪扇面

Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2936011B2 (ja) * 1993-12-06 1999-08-23 フランツ・ハース・ヴァッフェルマシイネン・インドウストリーゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 澱粉を基本成分とする分解性の肉薄成形体の製造方法
CN1230385A (zh) * 1998-03-31 1999-10-06 盛丽君 一种可降解餐具或器皿及其生产方法
CN1236725A (zh) * 1999-06-08 1999-12-01 李运吉 植物纤维一次性筷子和食品容器及其生产方法
CN1342728A (zh) * 2000-09-12 2002-04-03 薛叶安 用植物纤维生产一次性可降解卫生筷的配方及工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2936011B2 (ja) * 1993-12-06 1999-08-23 フランツ・ハース・ヴァッフェルマシイネン・インドウストリーゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 澱粉を基本成分とする分解性の肉薄成形体の製造方法
CN1230385A (zh) * 1998-03-31 1999-10-06 盛丽君 一种可降解餐具或器皿及其生产方法
CN1236725A (zh) * 1999-06-08 1999-12-01 李运吉 植物纤维一次性筷子和食品容器及其生产方法
CN1342728A (zh) * 2000-09-12 2002-04-03 薛叶安 用植物纤维生产一次性可降解卫生筷的配方及工艺

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230201B (zh) * 2008-01-14 2010-10-06 罗家宏 可生物降解植物纤维材料及其加工工艺
CN102504559A (zh) * 2011-11-04 2012-06-20 山东省塑料研究开发中心 采用天然秸秆加工全降解可回收塑料的方法

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Publication number Publication date
CN1371944A (zh) 2002-10-02
CN1151206C (zh) 2004-05-26

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