KR102607209B1 - Foamed plastic composition using rice powder - Google Patents

Foamed plastic composition using rice powder Download PDF

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KR102607209B1
KR102607209B1 KR1020210115562A KR20210115562A KR102607209B1 KR 102607209 B1 KR102607209 B1 KR 102607209B1 KR 1020210115562 A KR1020210115562 A KR 1020210115562A KR 20210115562 A KR20210115562 A KR 20210115562A KR 102607209 B1 KR102607209 B1 KR 102607209B1
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plastic composition
biodegradable
foamed plastic
weight
rice powder
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KR20230032576A (en
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박재민
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다윈그룹(주)
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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
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • C08J9/0014—Use of organic additives
    • C08J9/0028—Use of organic additives containing nitrogen
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/175—Amines; Quaternary ammonium compounds containing COOH-groups; Esters or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L99/00—Compositions of natural macromolecular compounds or of derivatives thereof not provided for in groups C08L89/00 - C08L97/00

Abstract

본 발명은 생분해성 발포 플라스틱 조성물에 관한 것으로, 보다 상세하게는 쌀을 이용한 생분해성 발포 플라스틱 조성물을 제공하는 것이다.The present invention relates to a biodegradable foamed plastic composition, and more specifically, to a biodegradable foamed plastic composition using rice.

Description

쌀을 이용한 생분해성 발포 플라스틱 조성물{FOAMED PLASTIC COMPOSITION USING RICE POWDER}Biodegradable foamed plastic composition using rice {FOAMED PLASTIC COMPOSITION USING RICE POWDER}

본 발명은 생분해성 발포 플라스틱 조성물에 관한 것으로, 보다 상세하게는 쌀을 이용한 생분해성 발포 플라스틱 조성물을 제공하는 것이다.The present invention relates to a biodegradable foamed plastic composition, and more specifically, to a biodegradable foamed plastic composition using rice.

본 발명은 경기도기술개발사업에 일환으로 고안된 것으로 다음과 같은 경기도기술개발사업에 따른 것이다.This invention was designed as part of the Gyeonggi-do technology development project and is in accordance with the following Gyeonggi-do technology development project.

[경기도기술개발사업][Gyeonggi-do technology development project]

[과제고유번호] D2020149[Assignment identification number] D2020149

[부처명] 경기도[Ministry name] Gyeonggi-do

[연구관리전문기관] (재)경기도경제과학진흥원[Research management agency] Gyeonggi Province Economic and Science Promotion Agency

[연구사업명] 일반분야/혁신기술개발[Research project name] General field/innovative technology development

[연구과제명 쌀 부산물을 활용한 산업용 포장재 PE-FOAM 바이오플라스틱 원료 및 제품개발[Research project name Development of industrial packaging material PE-FOAM bioplastic raw materials and products using rice by-products

[주관연구기관] ㈜이루케미칼[Host research institute] Eru Chemical Co., Ltd.

[연구기간] 2020. 09. 01. ~ 2021. 08. 31[Research period] 2020. 09. 01. ~ 2021. 08. 31

석유계 범용 플라스틱은 가볍고, 저렴하며 제작이 용이하나, 폐기시 자체적인 분해가 되지 않으므로 인한 환경오염이 날로 심각해지고 있으며, 이에 따라 환경오염을 방지하고, 플라스틱을 대체할 수 있는 소재의 개발이 요구되고 있다.Petroleum-based general-purpose plastics are light, inexpensive, and easy to manufacture, but since they do not decompose on their own when disposed of, environmental pollution is becoming more serious day by day. Accordingly, the development of materials that can prevent environmental pollution and replace plastic is required. It is becoming.

또한, 현재 사용 중인 대표적인 포장재료인 발포 폴리스티렌(expanded polystyrene; EPS)는 플라스틱 폐기물 중에서 차지하는 부피가 매우 크며, 거의 분해되지 않기 때문에 심각한 환경오염을 일으킨다는 문제점이 있다. 또한, EPS는 제조공정 시 화학발포제로서 사플루오르화탄소(CF4)를 사용고 있으며, 이는 지구의 오존층 파괴의 주범이 되고 있다.In addition, expanded polystyrene (EPS), a representative packaging material currently in use, occupies a very large volume among plastic waste and has the problem of causing serious environmental pollution because it is hardly decomposed. In addition, EPS uses carbon tetrafluoride (CF 4 ) as a chemical blowing agent during the manufacturing process, which is the main cause of the destruction of the Earth's ozone layer.

대한민국 공개특허공보 제10-1991-0006422호Republic of Korea Patent Publication No. 10-1991-0006422

본 발명은 전술한 문제점을 해결하기 위하여 창출된 것으로, 일반 토양에서도 생분해가 가능하며, 쌀을 첨가함으로써 우수한 물성을 갖는 발포 플라스틱 조성물을 제공하고자 하는 것이다.The present invention was created to solve the above-mentioned problems, and aims to provide a foamed plastic composition that is biodegradable even in general soil and has excellent physical properties by adding rice.

상기한 목적들을 달성하기 위하여, 본 발명의 일 실시예에 따른 생분해 발포 플라스틱 조성물은 쌀 분말과 생분해성 수지가 포함된 수지 혼합물; 및 첨가제를 포함한다.In order to achieve the above objectives, a biodegradable foamed plastic composition according to an embodiment of the present invention includes a resin mixture containing rice powder and a biodegradable resin; and additives.

상기 쌀 분말의 입도는 250 내지 500 mesh일 수 있다.The particle size of the rice powder may be 250 to 500 mesh.

상기 생분해성 수지는 PBAT, PBS 및 CNF 중 어느 하나 이상을 포함할 수 있다.The biodegradable resin may include any one or more of PBAT, PBS, and CNF.

상기 수지 혼합물은, 상기 수지 혼합물 100 wt%를 기준으로 상기 쌀 분말 5 내지 30 wt%, 상기 생분해성 수지 70 내지 95 wt%를 포함할 수 있다.The resin mixture may include 5 to 30 wt% of the rice powder and 70 to 95 wt% of the biodegradable resin, based on 100 wt% of the resin mixture.

상기 첨가제는 스테아린산칼슘(Calcium stearate) 및 산화방지제를 포함할 수 있으며, 상기 첨가제는 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 및 커플링제(Coupling agent) 중 어느 하나 이상을 더 포함할 수 있다.The additive may include calcium stearate and an antioxidant, and the additive may be any one of N,N'-ethylene bis stearamide and a coupling agent. It may include more than the above.

상기 첨가제는 상기 수지 혼합물 100 중량부 대비 0.3 내지 3.4 중량부로 포함할 수 있다.The additive may be included in an amount of 0.3 to 3.4 parts by weight based on 100 parts by weight of the resin mixture.

그러나, 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라, 서로 다른 다양한 형태로 구성될 수 있으며, 본 발명의 개시가 완전하도록 하고 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자(이하, "통상의 기술자")에게 발명의 범주를 완전하게 알려주기 위해서 제공되는 것이다.However, the present invention is not limited to the embodiments disclosed below, and may be configured in various different forms. In order to ensure that the disclosure of the present invention is complete, those skilled in the art ( It is provided to fully inform those skilled in the art of the invention of the scope of the invention.

본 발명의 일 실시예에 의하면, 본 발명에 따른 생분해 발포 플라스틱 조성물은 생분해성 수지에 천연물질인 쌀을 이용하여 우수한 물성과 안정성을 갖는 생분해성 플라스틱을 제조하는 것이다.According to one embodiment of the present invention, the biodegradable foamed plastic composition according to the present invention uses rice, a natural material, in the biodegradable resin to produce a biodegradable plastic with excellent physical properties and stability.

또한, 기존의 바이오 플라스틱이 가지고 있는 가격문제를 해결함과 동시에, 천연물질인 쌍을 이용함으로써 뛰어난 물성과 함께 자연분해가 가능한 생분해성 플라스틱 조성물을 제공하는 것이다.In addition, it solves the cost problem of existing bioplastics and provides a biodegradable plastic composition that can be naturally decomposed with excellent physical properties by using natural substances.

본 발명은 다양한 변경을 가할 수 있고, 여러 가지 실시예들을 가질 수 있는 바, 특정 실시예들을 도면에 예시하고 이를 상세히 설명하고자 한다. Since the present invention can be subject to various changes and can have various embodiments, specific embodiments will be illustrated in the drawings and described in detail.

청구범위에 개시된 발명의 다양한 특징들은 도면 및 상세한 설명을 고려하여 더 잘 이해될 수 있을 것이다. 명세서에 개시된 장치, 방법, 제법 및 다양한 실시예들은 예시를 위해서 제공되는 것이다. 개시된 구조 및 기능상의 특징들은 통상의 기술자로 하여금 다양한 실시예들을 구체적으로 실시할 수 있도록 하기 위한 것이고, 발명의 범위를 제한하기 위한 것이 아니다. 개시된 용어 및 문장들은 개시된 발명의 다양한 특징들을 이해하기 쉽게 설명하기 위한 것이고, 발명의 범위를 제한하기 위한 것이 아니다.The various features of the invention disclosed in the claims may be better understood by consideration of the drawings and detailed description. The apparatus, method, manufacturing method, and various embodiments disclosed in the specification are provided for illustrative purposes. The disclosed structural and functional features are intended to enable those skilled in the art to specifically implement various embodiments, and are not intended to limit the scope of the invention. The disclosed terms and sentences are intended to easily explain various features of the disclosed invention and are not intended to limit the scope of the invention.

본 발명을 설명함에 있어서, 관련된 공지기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우, 그 상세한 설명을 생략한다.In describing the present invention, if it is determined that a detailed description of related known technology may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

본 발명의 일 실시예에 따른 생분해 발포 플라스틱 조성물은 쌀 분말과 생분해성 수지가 포함된 수지 혼합물; 및 첨가제를 포함한다.A biodegradable foamed plastic composition according to an embodiment of the present invention includes a resin mixture containing rice powder and a biodegradable resin; and additives.

상기 생분해 발포 플라스틱 조성물은 쌀 분말에 생분해성 수지를 혼한한 후, 첨가제를 첨가하여 소정의 온도 조건 하에서, 소정의 압출속도 조건으로 압출하여 제조되는 것일 수 있다.The biodegradable foamed plastic composition may be manufactured by mixing rice powder with a biodegradable resin, adding additives, and extruding it under predetermined temperature conditions and extrusion speed conditions.

상기 쌀 분말의 입도(입자 크기)는 250 내지 500 mesh일 수 있다.The particle size (particle size) of the rice powder may be 250 to 500 mesh.

상기 생분해성 수지는 PBAT(poly(butylene adipate-co-terephthalate), PBS(Polybutylene succinate) 및 CNF(Cellulose Nano Fiber) 중 어느 하나 이상을 포함할 수 있다.The biodegradable resin may include one or more of poly(butylene adipate-co-terephthalate) (PBAT), polybutylene succinate (PBS), and cellulose nano fiber (CNF).

상기 수지 혼합물은, 상기 수지 혼합물 100 wt%를 기준으로 상기 쌀 분말 5 내지 30 wt%, 상기 생분해성 수지 70 내지 95 wt%를 포함할 수 있다.The resin mixture may include 5 to 30 wt% of the rice powder and 70 to 95 wt% of the biodegradable resin, based on 100 wt% of the resin mixture.

상기 첨가제는 열안정제 및 산화방지제를 포함할 수 있으며, 상기 첨가제는 분산제 및 커플링제(Coupling agent) 중 어느 하나 이상을 더 포함할 수 있다.The additive may include a heat stabilizer and an antioxidant, and the additive may further include one or more of a dispersant and a coupling agent.

상기 열안정제는 동시에 활제(Lubricant Additives)인 것일 수 있다.The heat stabilizer may also be a lubricant additive.

상기 열안정제는 스테아린산염, 팔미트산염 및 라우르산염으로 구성되는 성분 중 어느 하나 이상일 수 있으며, 바람직하게는 스테아린산염일 수 있다.The heat stabilizer may be any one or more of stearate, palmitate, and laurate, and is preferably stearate.

상기 스테아린산염은 스테아린산칼슘(Calcium stearate)일 수 있다. The stearate may be calcium stearate.

상기 분산제는 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide)일 수 있다.The dispersant may be N,N'-ethylene bis stearamide.

상기 커플링제는 실란계 커플링제일 수 있으며 보다 상세하게는 메톡시기를 포함하는 실란계 커플링제 일 수 있다. 일례로서, 상기 커플링제는 MPS(3-(trimethoxysilyl)propyl methacrylate), GPS((3-Glycidoxypropyl)trimethoxy silane), 또는 APS((3-aminopropyl)trimethoxy silane)일 수 있다.The coupling agent may be a silane-based coupling agent, and more specifically, may be a silane-based coupling agent containing a methoxy group. As an example, the coupling agent may be MPS (3-(trimethoxysilyl)propyl methacrylate), GPS ((3-Glycidoxypropyl)trimethoxy silane), or APS ((3-aminopropyl)trimethoxy silane).

상기 산화방지제는 SONOX 1010 및/또는 SONOX 168일 수 있다.The antioxidant may be SONOX 1010 and/or SONOX 168.

상기 첨가제는 상기 수지 혼합물 100 중량부 대비 0.3 내지 3.4 중량부로 포함할 수 있다.The additive may be included in an amount of 0.3 to 3.4 parts by weight based on 100 parts by weight of the resin mixture.

이하, 실시예를 통하여 본 발명을 보다 상세히 설명한다. 본 실시예는 본 발명의 이해를 위한 하나의 실시예일 뿐이며, 본 발명의 범위를 제한하는 것은 아니다.Hereinafter, the present invention will be described in more detail through examples. This example is only an example for understanding the present invention and does not limit the scope of the present invention.

실시예 1. 생분해성 발포 플라스틱 조성물Example 1. Biodegradable foamed plastic composition

쌀 분말(입도 250 mesh) 5 wt%, PBAT 90 wt% 및 PBS 5 wt%를 혼합하여 100 wt%의 수지 혼합물을 제조하였다. 제조된 수지 혼합물 100 중량부를 기준으로, 첨가제로서 스테아린산칼슘(Calcium stearate) 0.2 중량부 및 제1 산화방지제(SONOX 1010) 0.1 중량부를 혼합하였다.A 100 wt% resin mixture was prepared by mixing 5 wt% rice powder (particle size 250 mesh), 90 wt% PBAT, and 5 wt% PBS. Based on 100 parts by weight of the prepared resin mixture, 0.2 parts by weight of calcium stearate and 0.1 parts by weight of the first antioxidant (SONOX 1010) were mixed as additives.

실시예 2. 생분해성 발포 플라스틱 조성물Example 2. Biodegradable foamed plastic composition

쌀 분말(입도 250 mesh) 10 wt%, PBAT 80 wt% 및 PBS 10 wt%를 혼합하여 100 wt%의 수지 혼합물을 제조하였다. 제조된 수지 혼합물 100 중량부를 기준으로, 첨가제로서 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 0.2 중량부, 스테아린산칼슘(Calcium stearate) 0.3 중량부 및 제1 산화방지제(SONOX 1010) 0.1 중량부를 혼합하였다.A 100 wt% resin mixture was prepared by mixing 10 wt% of rice powder (particle size 250 mesh), 80 wt% of PBAT, and 10 wt% of PBS. Based on 100 parts by weight of the prepared resin mixture, 0.2 parts by weight of N,N'-ethylene bis stearamide as additives, 0.3 parts by weight of calcium stearate, and a first antioxidant ( SONOX 1010) 0.1 part by weight was mixed.

실시예 3. 생분해성 발포 플라스틱 조성물Example 3. Biodegradable foamed plastic composition

쌀 분말(입도 350 mesh) 15 wt%, PBAT 75 wt%, PBS 8 wt% 및 CNF(Cellulose Nano Fiber) 2 wt%를 혼합하여 100 wt%의 수지 혼합물을 제조하였다. 제조된 수지 혼합물 100 중량부를 기준으로, 첨가제로서 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 0.5 중량부, 스테아린산칼슘(Calcium stearate) 0.8 중량부 및 제1 산화방지제(SONOX 1010) 0.1 중량부를 혼합하였다.A 100 wt% resin mixture was prepared by mixing 15 wt% rice powder (particle size 350 mesh), 75 wt% PBAT, 8 wt% PBS, and 2 wt% CNF (Cellulose Nano Fiber). Based on 100 parts by weight of the prepared resin mixture, 0.5 parts by weight of N,N'-ethylene bis stearamide as additives, 0.8 parts by weight of calcium stearate, and a first antioxidant ( SONOX 1010) 0.1 part by weight was mixed.

실시예 4. 생분해성 발포 플라스틱 조성물Example 4. Biodegradable foamed plastic composition

쌀 분말(입도 500 mesh) 20 wt%, PBAT 67 wt%, PBS 10 wt% 및 CNF(Cellulose Nano Fiber) 3 wt%를 혼합하여 100 wt%의 수지 혼합물을 제조하였다. 제조된 수지 혼합물 100 중량부를 기준으로, 첨가제로서 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 0.4 중량부, 스테아린산칼슘(Calcium stearate) 0.9 중량부, 제1 산화방지제(SONOX 1010) 0.1 중량부, 제2 산화방지제(SONOX 168) 0.1 중량부 및 커플링제(Coupling agent) MPS(3-(trimethoxysilyl)propyl methacrylate) 0.5 중량부를 혼합하였다.A 100 wt% resin mixture was prepared by mixing 20 wt% of rice powder (particle size 500 mesh), 67 wt% of PBAT, 10 wt% of PBS, and 3 wt% of CNF (Cellulose Nano Fiber). Based on 100 parts by weight of the prepared resin mixture, 0.4 parts by weight of N,N'-ethylene bis stearamide as additives, 0.9 parts by weight of calcium stearate, and a first antioxidant ( 0.1 part by weight of SONOX 1010, 0.1 part by weight of second antioxidant (SONOX 168), and 0.5 part by weight of coupling agent MPS (3-(trimethoxysilyl)propyl methacrylate) were mixed.

실시예 5. 생분해성 발포 플라스틱 조성물Example 5. Biodegradable foamed plastic composition

쌀 분말(입도 500 mesh) 30 wt%, PBAT 57 wt%, PBS 8 wt% 및 CNF(Cellulose Nano Fiber) 5 wt%를 혼합하여 100 wt%의 수지 혼합물을 제조하였다. 제조된 수지 혼합물 100 중량부를 기준으로, 첨가제로서 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 0.5 중량부, 스테아린산칼슘(Calcium stearate) 1.5 중량부, 제1 산화방지제(SONOX 1010) 0.2 중량부, 제2 산화방지제(SONOX 168) 0.2 중량부 및 커플링제(Coupling agent) MPS(3-(trimethoxysilyl)propyl methacrylate) 1.0 중량부를 혼합하였다.A 100 wt% resin mixture was prepared by mixing 30 wt% of rice powder (particle size 500 mesh), 57 wt% of PBAT, 8 wt% of PBS, and 5 wt% of CNF (Cellulose Nano Fiber). Based on 100 parts by weight of the prepared resin mixture, additives include 0.5 parts by weight of N,N'-ethylene bis stearamide, 1.5 parts by weight of calcium stearate, and a first antioxidant ( 0.2 parts by weight of SONOX 1010, 0.2 parts by weight of the second antioxidant (SONOX 168), and 1.0 parts by weight of the coupling agent MPS (3-(trimethoxysilyl)propyl methacrylate) were mixed.

상기 실시예 1 내지 5의 조성물의 함량을 하기 표 1 및 표 2에 정리하였다.The contents of the compositions of Examples 1 to 5 are summarized in Tables 1 and 2 below.

원재료Raw materials 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 실시예 5Example 5 수지profit
혼합물mixture 쌀 분말rice powder 250 mesh250 mesh 5 wt%5wt% 10 wt%10wt% 350 mesh350 mesh 15 wt%15wt% 500 mesh500 mesh 20 wt%20wt% 30 wt%30wt% 생분해성 수지biodegradable resin PBATPBAT 90 wt%90wt% 80 wt%80wt% 75 wt%75wt% 67 wt%67wt% 57 wt%57wt% PBSPBS 5 wt%5wt% 10 wt%10wt% 8 wt%8wt% 10 wt%10wt% 8 wt%8wt% CNFCNF 2 wt%2wt% 3 wt%3wt% 5 wt%5wt% 계total 100 wt%100wt%

원재료Raw materials 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 실시예 5Example 5 첨가제additive
(혼합물 100 중량부 기준)(based on 100 parts by weight of mixture) N,N'-ethylene bis stearamideN,N'-ethylene bis stearamide 0.2
중량부0.2
weight part 0.3
중량부0.3
weight part 0.4
중량부0.4
weight part 0.5
중량부0.5
weight part Calcium stearateCalcium stearate 0.2
중량부0.2
weight part 0.3
중량부0.3
weight part 0.8
중량부0.8
weight part 0.9
중량부0.9
weight part 1.5
중량부1.5
weight part Anti-oxi-dant/SONOX 1010Anti-oxidant/SONOX 1010 0.1
중량부0.1
weight part 0.1
중량부0.1
weight part 0.1
중량부0.1
weight part 0.1
중량부0.1
weight part 0.2
중량부0.2
weight part Anti-oxi-dant/SONOX 168Anti-oxidant/SONOX 168 0.1
중량부0.1
weight part 0.2
중량부0.2
weight part Coupling agentCoupling agent 0.5
중량부0.5
weight part 1.0
중량부1.0
weight part 계total 0.3
중량부0.3
weight part 0.6
중량부0.6
weight part 1.2
중량부1.2
weight part 2.0
중량부2.0
weight part 3.4
중량부3.4
weight part

측정예. 물성의 측정Measurement example. Measurement of physical properties

실시예에 따른 생분해 발포 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱의 물성을 측정하였으며, 하기 표 3에 정리하였다.The physical properties of the biodegradable foamed plastic produced using the biodegradable foamed plastic composition according to the example were measured, and are summarized in Table 3 below.

표 3에서의 인장강도는 실시예 1 내지 5에 따른 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱을 원통형의 시료를 4 cm 떨어진 클램프 사이에 물리고 8 mm/min 의 속도로 인장시키면서 응력-변형률 곡선을 통하여 인장강도를 계산하였다.The tensile strength in Table 3 is obtained by clamping a cylindrical sample of a biodegradable foamed plastic manufactured using the plastic composition according to Examples 1 to 5 between clamps 4 cm apart and stretching it at a rate of 8 mm/min, and the stress-strain curve is obtained. The tensile strength was calculated through

표 3에서의 파열강도는 실시예 1 내지 5에 따른 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱을 원통형의 시료를 4cm 떨어진 두개의 지지대상에 놓고 10 mm/min의 속도로 나이프를 강하하면서 응력-변형율 곡선을 통하여 시료를 파열시키는데 요구되는 최대힘으로부터 파열강도룰 계산하였다.The bursting strength in Table 3 is calculated by placing a cylindrical sample of the biodegradable foamed plastic manufactured using the plastic composition according to Examples 1 to 5 on two supports 4 cm apart and lowering the knife at a speed of 10 mm/min. The bursting strength was calculated from the maximum force required to rupture the sample through the strain rate curve.

표 3에서의 반발탄성율은 수평위치에 있는 추(錘)가 90 ˚에 위치되어 있는 시편(실시예 1 내지 5에 따른 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱)(시편 규격 : 두께 12.5 mm / 지름 29 mm)에 가해지면서 발생하는 반발 에너지를 디지털 방식의 백분율로 표시하였다(처음추의 위치 대비 시료충돌 후 추의 올라간 위치).The rebound modulus of elasticity in Table 3 is a specimen (biodegradable foam plastic manufactured using the plastic composition according to Examples 1 to 5) with the weight in a horizontal position positioned at 90 degrees (specimen size: thickness 12.5 mm / The repulsion energy generated when applied to the specimen (diameter 29 mm) was expressed as a digital percentage (the position of the weight raised after the sample impact compared to the initial position of the weight).

표 3에서의 압축강도는 압축하중에 의해 시편(실시예 1 내지 5에 따른 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱)이 파괴될 때까지의 최대 응력으로, 최대 하중을 시험편의 단면적으로 나눈 값이며, 원통형시편을 2장의 평판에 끼고, 수직하중을 가하여 파괴되는 응력과 변형의 관계를 측정하는 시험으로 계산하였다.The compressive strength in Table 3 is the maximum stress until the specimen (biodegradable foam plastic manufactured using the plastic composition according to Examples 1 to 5) is destroyed by compressive load, which is the maximum load divided by the cross-sectional area of the specimen. It was calculated by placing a cylindrical specimen between two flat plates and applying a vertical load to measure the relationship between stress and strain at failure.

표 3에서의 벌크밀도는 실시예 1 내지 5에 따른 플라스틱 조성물을 이용하여 제작된 생분해 발포 플라스틱을 벌크밀도 측정기(Bulk Density Meter, Model: RAY-RAN Apparent Bulk Density Apparatus)를 이용하여 측정하였다.The bulk density in Table 3 was measured using a bulk density meter (Bulk Density Meter, Model: RAY-RAN Apparent Bulk Density Apparatus) for biodegradable foamed plastics produced using the plastic compositions according to Examples 1 to 5.

구분division 실시예 1Example 1 실시예 2Example 2 실시예 3Example 3 실시예 4Example 4 실시예 5Example 5 인장강도tensile strength kgf/cm2 kgf/ cm2 1111 1212 1111 2020 1616 파열강도Bursting strength %% 66 1515 2121 3030 2828 반발탄성율Rebound modulus of elasticity %% 5454 5050 7171 7575 5252 압축강도compressive strength g/cm2 g/cm 2 6060 6565 110110 130130 9595 벌크밀도bulk density lb/ft2 lb/ft 2 0.40.4 0.30.3 0.80.8 1.21.2 0.60.6

이상의 설명은 본 발명의 기술적 사상을 예시적으로 설명한 것에 불과한 것으로, 통상의 기술자라면 본 발명의 본질적인 특성이 벗어나지 않는 범위에서 다양한 변경 및 수정이 가능할 것이다.The above description is merely an illustrative explanation of the technical idea of the present invention, and those skilled in the art will be able to make various changes and modifications without departing from the essential characteristics of the present invention.

본 명세서에 개시된 다양한 실시예들은 순서에 관계없이 수행될 수 있으며, 동시에 또는 별도로 수행될 수 있다. Various embodiments disclosed herein can be performed in any order, simultaneously or separately.

일 실시예에서, 본 명세서에서 설명되는 각 도면에서 적어도 하나의 단계가 생략되거나 추가될 수 있고, 역순으로 수행될 수도 있으며, 동시에 수행될 수도 있다. In one embodiment, at least one step may be omitted or added to each drawing described in this specification, may be performed in reverse order, or may be performed simultaneously.

본 명세서에 개시된 실시예들은 본 발명의 기술적 사상을 한정하기 위한 것이 아니라, 설명하기 위한 것이고, 이러한 실시예들에 의하여 본 발명의 범위가 한정되는 것은 아니다.The embodiments disclosed in this specification are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the present invention is not limited by these embodiments.

본 발명의 보호범위는 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 이해되어야 한다.The scope of protection of the present invention should be interpreted in accordance with the claims, and all technical ideas within the equivalent scope should be understood to be included in the scope of rights of the present invention.

Claims (7)

쌀 분말과 생분해성 수지가 포함된 수지 혼합물; 및
첨가제를 포함하는
상기 생분해성 수지는 PBAT, PBS 및 CNF를 포함하는 것인,
생분해 발포 플라스틱 조성물.
Resin mixture containing rice powder and biodegradable resin; and
containing additives
The biodegradable resin includes PBAT, PBS and CNF,
Biodegradable foamed plastic composition.
 제1항에 있어서,
상기 쌀 분말의 입도는 250 내지 500 mesh인 것인,
생분해 발포 플라스틱 조성물.
According to paragraph 1,
The particle size of the rice powder is 250 to 500 mesh,
Biodegradable foamed plastic composition.
 삭제delete 제1항에 있어서,
상기 수지 혼합물은,
상기 수지 혼합물 100 wt%를 기준으로 상기 쌀 분말 5 내지 30 wt%, 상기 생분해성 수지 70 내지 95 wt%를 포함하는 것인,
생분해 발포 플라스틱 조성물.
According to paragraph 1,
The resin mixture is,
Based on 100 wt% of the resin mixture, it contains 5 to 30 wt% of the rice powder and 70 to 95 wt% of the biodegradable resin,
Biodegradable foamed plastic composition.
 제1항에 있어서,
상기 첨가제는 스테아린산칼슘(Calcium stearate) 및 산화방지제를 포함하는 것인,
생분해 발포 플라스틱 조성물.
According to paragraph 1,
The additive includes calcium stearate and antioxidants.
Biodegradable foamed plastic composition.
 제5항에 있어서,
상기 첨가제는 N,N'-에틸렌 비스 스테아마이드(N,N'-ethylene bis stearamide) 및 커플링제(Coupling agent) 중 어느 하나 이상을 더 포함하는 것인,
생분해 발포 플라스틱 조성물.
According to clause 5,
The additive further includes one or more of N,N'-ethylene bis stearamide and a coupling agent,
Biodegradable foamed plastic composition.
 제1항에 있어서,
상기 첨가제는 상기 수지 혼합물 100 중량부 대비 0.3 내지 3.4 중량부로 포함하는 것인,
생분해 발포 플라스틱 조성물.According to paragraph 1,
The additive is contained in an amount of 0.3 to 3.4 parts by weight based on 100 parts by weight of the resin mixture.
Biodegradable foamed plastic composition.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008056851A (en) * 2006-09-01 2008-03-13 Toyo Seikan Kaisha Ltd Aliphatic polyester resin composition and method for producing the same
JP2020164686A (en) * 2019-03-29 2020-10-08 積水化成品工業株式会社 Foaming sheet and foaming container

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CA2026201A1 (en) 1989-09-26 1991-03-27 Kazuo Doyama Engineering plastic composition and articles made of the same
KR101294346B1 (en) * 2011-06-29 2013-08-07 일신화학공업 주식회사 Biodegradable Mulching Film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008056851A (en) * 2006-09-01 2008-03-13 Toyo Seikan Kaisha Ltd Aliphatic polyester resin composition and method for producing the same
JP2020164686A (en) * 2019-03-29 2020-10-08 積水化成品工業株式会社 Foaming sheet and foaming container

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