KR950003373A - Method for producing biodegradable expanded polystyrene resin particles - Google Patents

Method for producing biodegradable expanded polystyrene resin particles Download PDF

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Publication number
KR950003373A
KR950003373A KR1019930012801A KR930012801A KR950003373A KR 950003373 A KR950003373 A KR 950003373A KR 1019930012801 A KR1019930012801 A KR 1019930012801A KR 930012801 A KR930012801 A KR 930012801A KR 950003373 A KR950003373 A KR 950003373A
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KR
South Korea
Prior art keywords
resin particles
expanded polystyrene
biodegradable expanded
styrene
polystyrene resin
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Application number
KR1019930012801A
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Korean (ko)
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KR960012446B1 (en
Inventor
이병운
노지현
김정호
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이덕림
주식회사 미원유화
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Priority to KR93012801A priority Critical patent/KR960012446B1/en
Publication of KR950003373A publication Critical patent/KR950003373A/en
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Publication of KR960012446B1 publication Critical patent/KR960012446B1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • 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

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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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

본 발명은 생분해성 발포 폴리스틸렌계 수지입자의 제조방법에 대한 것으로서, 더욱 상세하게는 옥수수 전분이나 라이스 전분과 전이금속계의 자동산화제가 들어 있는 폴리스틸렌 분해첨가제를 압출기를 사용하여 순수 폴리스틸렌계 수지입자와 용융 혼합시킨뒤 일정한 크기로 절단하여 이것을 분산제가 들어 있는 현탁계에서 분산시킨 후 휘발성 발포제를 가하여 함침(impregnation)시킴으로써 일정배율까지의 발포가 가능하고 또한 임의의 성형체를 얻을 수 있으며 약 3개월후부터는 생분해가 이루어지는 새로운 생분해성 발포 폴리스틸렌계 수지입자의 제조방법에 관한 것이다.The present invention relates to a method for producing biodegradable expanded polystyrene-based resin particles, and more particularly, polystyrene decomposition additives containing corn starch or rice starch and a transition metal-based automatic oxidizing agent are melted with pure polystyrene-based resin particles using an extruder. After mixing, cutting to a certain size and dispersing it in a suspension system containing a dispersant, and then impregnation by adding a volatile blowing agent, foaming up to a certain ratio is possible, and an arbitrary molded body can be obtained. The present invention relates to a method for producing new biodegradable expanded polystyrene resin particles.

Description

생분해성 발포 폴리스틸렌계 수지입자의 제조방법Method for producing biodegradable expanded polystyrene resin particles

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도의 (A)는 본발명의 방법에 따라 실시예 1에서 제조된 생분해성 폴리스틸렌계 수지입자에 전분이 포함된 전자 현미경 사진(1000X)이고, 제 1 도의 (B)는 본 발명의 방법에 따라 실시예 1에서 제조된 생분해성 폴리스틸렌계 수지입자를 약 3개월 동안 방치시킨후 전분이 소멸된 전자 현미경 사진(1000X)이고, 제 2 도는 본 발명의 방법에 따라 실시예 1에서 제조된 생분해성 폴리스틸렌계 수지입자를 3개월 후에 측정한 적외선 흡수 스펙트럼(FT-IR)도면이다.(A) of FIG. 1 is an electron micrograph (1000X) of starch included in the biodegradable polystyrene resin particles prepared in Example 1 according to the method of the present invention, and (B) of FIG. The biodegradable polystyrene-based resin particles prepared according to Example 1 were left for about 3 months, and then starch was lost electron micrograph (1000X), Figure 2 is a biodegradable prepared in Example 1 according to the method of the present invention The infrared absorption spectrum (FT-IR) figure which measured the polystyrene resin particle after 3 months.

Claims (5)

전분과 전이금속계의 자동산화제가 첨가된 생분해성 발포 폴리스틸렌 수지입자를 제조함에 있어서, 스틸렌계 중합체 입자 100중량부에 대해서 전분과 전이금속계의 자동산화제가 포함된 폴리스틸렌 분해첨가제를 20~300중량부 첨가하여 압출기로 용융 혼합시키고 길이 1.5~3㎜, 두께 0.5~1.5㎜로 절단하고 이것을 물과 분산제가 들어 있는 현탁계에분산시킨 후 휘발성 발포제 5~20중량부 및 분산제 2~15중량부를 첨가하여 70~110℃에서 3~8시간 함침시켜 제조하는 것을특징으로 하는 생분해성 발포 폴리스틸렌계 수지입자의 제조방법.In preparing biodegradable expanded polystyrene resin particles containing starch and transition metal-based autooxidant, 20 to 300 parts by weight of polystyrene decomposition additive including starch and transition metal-based autooxidant is added to 100 parts by weight of styrene polymer particles. Melt melt with an extruder, cut into 1.5 ~ 3mm in length and 0.5 ~ 1.5mm in thickness, disperse it in suspension containing water and dispersant, and add 5 ~ 20 parts by weight of volatile blowing agent and 2 ~ 15 parts by dispersant. Method for producing biodegradable expanded polystyrene resin particles characterized in that the impregnated at ~ 110 ℃ produced for 3 to 8 hours. 제 1 항에 있어서, 상기 스틸렌계 중합체 입자로는 스틸렌 단독 중합체, 스틸렌 아크릴로니트릴 중합체,알파-메틸스틸렌 중합체 또는 고무가 첨가된 스틸렌 중합체를 사용하는 것을 특징으로 하는 생분해성 발포 폴리스틸렌계수지입자의 제조방법.According to claim 1, wherein the styrene-based polymer particles of the styrene homopolymer, styrene acrylonitrile polymer, alpha-methylstyrene polymer or rubber styrene polymer added to the production of biodegradable expanded polystyrene resin particles characterized in that Way. 제 1 항에 있어서, 상기 휘발성 발포제로는 펜탄 또는 부탄을 사용하는 것을 특징으로 하는 생분해성 발포폴리스틸렌계 수지입자의 제조방법.The method of manufacturing biodegradable expanded polystyrene resin particles according to claim 1, wherein volatile blowing agent is used as pentane or butane. 제 1 항에 있어서, 상기 분산제로는 트리캄슘 포스페이트 또는 피로인산마그네슘을 사용하는 것을 특징으로 하는 생분해성 발포 폴리스틸렌계 수지입자의 제조방법.The method of claim 1, wherein the dispersant is tricalcium phosphate or magnesium pyrophosphate. 제 1 항에 있어서, 상기 생분해성 발포 스틸렌 수지입자는 5~80배의 발포체인 것을 특징으로 하는 생분해성 발포 폴리스틸렌계 수지입자의 제조방법.The method for producing biodegradable expanded polystyrene-based resin particles according to claim 1, wherein the biodegradable expanded styrene resin particles are 5 to 80 times foam. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR93012801A 1993-07-08 1993-07-08 Process for biodegradable foaming polystyrene resin particles KR960012446B1 (en)

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Application Number Priority Date Filing Date Title
KR93012801A KR960012446B1 (en) 1993-07-08 1993-07-08 Process for biodegradable foaming polystyrene resin particles

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KR93012801A KR960012446B1 (en) 1993-07-08 1993-07-08 Process for biodegradable foaming polystyrene resin particles

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KR960012446B1 KR960012446B1 (en) 1996-09-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401183B1 (en) * 2001-01-18 2003-10-10 바이오리플라 주식회사 Biodegradable polystyrene capsules and manufacturing method thereof
KR100479284B1 (en) * 2001-04-14 2005-03-28 추동권 Water-soluble air-coushion packing material
KR20050081488A (en) * 2004-02-13 2005-08-19 삼성전자주식회사 Refrigerator for kimchi
KR20210109284A (en) * 2020-02-27 2021-09-06 엘지전자 주식회사 Laundry Treatment Apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401183B1 (en) * 2001-01-18 2003-10-10 바이오리플라 주식회사 Biodegradable polystyrene capsules and manufacturing method thereof
KR100479284B1 (en) * 2001-04-14 2005-03-28 추동권 Water-soluble air-coushion packing material
KR20050081488A (en) * 2004-02-13 2005-08-19 삼성전자주식회사 Refrigerator for kimchi
KR20210109284A (en) * 2020-02-27 2021-09-06 엘지전자 주식회사 Laundry Treatment Apparatus
US11674259B2 (en) 2020-02-27 2023-06-13 Lg Electronics Inc. Laundry treatment apparatus

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