JP2000290515A - Biodegradable resin composition - Google Patents
Biodegradable resin compositionInfo
- Publication number
- JP2000290515A JP2000290515A JP11098045A JP9804599A JP2000290515A JP 2000290515 A JP2000290515 A JP 2000290515A JP 11098045 A JP11098045 A JP 11098045A JP 9804599 A JP9804599 A JP 9804599A JP 2000290515 A JP2000290515 A JP 2000290515A
- Authority
- JP
- Japan
- Prior art keywords
- biodegradable resin
- slaked lime
- resin composition
- weight
- biodegradable
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
(57)【要約】
【課題】 樹脂加工時の樹脂の発泡及び加水分解がが防
止され、良好な製品を得ることができる消石灰が添加さ
れた生分解性樹脂組成物を提供すること。
【解決手段】 生分解性樹脂に、消石灰及びその１〜４
０重量％の生石灰との混合物を０．０５〜６０重量％添
加してなる生分解性樹脂組成物。PROBLEM TO BE SOLVED: To provide a biodegradable resin composition to which slaked lime is added, which can prevent foaming and hydrolysis of a resin during resin processing and can obtain a good product. SOLUTION: Slaked lime and its 1-4 are added to biodegradable resin.
A biodegradable resin composition comprising 0.05 to 60% by weight of a mixture with 0% by weight quicklime.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は土壌改良性を有する
生分解性樹脂組成物に関する。[0001] The present invention relates to a biodegradable resin composition having soil improving properties.
【０００２】[0002]
【従来の技術】生分解性樹脂は、植生土嚢、植生ネット
等の土木資材、農業用マルチフィルム等の農業資材、育
苗ポット等の園芸資材等に使用されており、生分解性樹
脂は使用中又は埋設後に微生物により分解される。上記
の各種資材においては、生分解性樹脂は、それぞれの資
材の使用目的が達成された後には生分解されて地表や土
壌中に残存せず、環境を阻害しないことから使用されて
いる。2. Description of the Related Art Biodegradable resins are used in civil engineering materials such as vegetation sandbags and vegetation nets, agricultural materials such as multi-films for agriculture, and horticultural materials such as seedling pots. Or it is decomposed by microorganisms after burying. In the above-mentioned various materials, the biodegradable resin is used because it is biodegraded and does not remain on the ground or soil after the purpose of use of each material is achieved, and does not hinder the environment.
【０００３】[0003]
【発明が解決しようとする課題】本発明者らは生分解性
樹脂を使用することによる新たな機能を付加すべく種々
検討した結果、生分解性樹脂に消石灰を添加して使用す
ることにより、土壌改良性が付与されることを見出し
た。この場合、消石灰を練り込んだ生分解性樹脂を従来
の技術で加工すると、消石灰中の水分が脱離して発泡現
象が生じ、良好な製品を得ることができなかった。又、
多くの生分解性樹脂はポリエステル系の樹脂であること
から、消石灰によって加水分解を起こし、製品に十分な
物性を付与することもできなかった。The present inventors have conducted various studies to add a new function by using a biodegradable resin. As a result, by adding slaked lime to the biodegradable resin and using the same, It has been found that soil improvement is provided. In this case, when the biodegradable resin into which slaked lime is kneaded is processed by a conventional technique, water in the slaked lime is desorbed and a foaming phenomenon occurs, and a good product cannot be obtained. or,
Since many biodegradable resins are polyester-based resins, they have been hydrolyzed by slaked lime and have not been able to impart sufficient physical properties to products.
【０００４】従って、本発明の目的は、樹脂加工時の発
泡が防止され、良好な製品を得ることができる消石灰が
添加された生分解性樹脂組成物を提供することである。
本発明者らは、上記目的を達成すべく検討した結果、消
石灰に生石灰を混合して使用することにより、生石灰が
吸水剤として働き、樹脂加工時に発泡が防止されること
を見出した。又、ポリエステル系の生分解性樹脂を用い
る場合には、消石灰及び生石灰表面を炭酸カルシウム化
することにより、樹脂加工時の加水分解を防ぐことがで
きることを見出した。Accordingly, an object of the present invention is to provide a biodegradable resin composition to which slaked lime is added, which can prevent foaming during resin processing and can obtain a good product.
The present inventors have studied to achieve the above object, and have found that by using slaked lime mixed with quick lime, quick lime functions as a water absorbing agent and foaming is prevented during resin processing. In addition, it has been found that when a polyester-based biodegradable resin is used, hydrolysis at the time of resin processing can be prevented by converting the surfaces of slaked lime and quick lime to calcium carbonate.
【０００５】[0005]
【課題を解決するための手段】上記の目的は以下の本発
明によって達成される。即ち、本発明は、生分解性樹脂
に、消石灰及びその１〜４０重量％の生石灰との混合物
を０．０５〜６０重量％添加してなる生分解性樹脂組成
物である。The above object is achieved by the present invention described below. That is, the present invention is a biodegradable resin composition obtained by adding 0.05 to 60% by weight of a mixture of slaked lime and 1 to 40% by weight of quick lime to a biodegradable resin.
【０００６】[0006]
【発明の実施の形態】次に好ましい発明の実施の形態を
挙げて本発明を更に詳細に説明する。本発明で使用され
る生分解性樹脂は、これを用いた製品がその使用後ある
いは使用中に生分解する樹脂又は樹脂組成物であれば特
に制限されない。生分解性樹脂としては、例えば、ポリ
ビニルアルコール、ポリビニルアルコール／澱分混合
物、ポリ乳酸、ポリアルキレンサクシネート、ポリカプ
ロラクトン、ポリカプロラクトン／澱分混合物、ポリエ
ステルカーボネート、ポリアミノ酸、ポリエステルアミ
ド、ポリヒドロキシブチレート／バリレート、キトサン
等が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION Next, the present invention will be described in more detail with reference to preferred embodiments of the invention. The biodegradable resin used in the present invention is not particularly limited as long as a product using the same is a resin or a resin composition that biodegrades after or during use. Examples of the biodegradable resin include polyvinyl alcohol, polyvinyl alcohol / sediment mixture, polylactic acid, polyalkylene succinate, polycaprolactone, polycaprolactone / sediment mixture, polyester carbonate, polyamino acid, polyester amide, and polyhydroxybutyrate. / Valerate, chitosan and the like.
【０００７】本発明では消石灰は生石灰と混合して使用
されるが、生石灰は消石灰の重量に対して１〜４０重量
％の範囲、好ましくは２〜１０重量％の範囲で使用され
る。少なすぎると樹脂加工時の発泡を防止することが困
難であり、多すぎると、それ以上使用しても発泡防止効
果は変わらない。消石灰と生石灰は予め混合して使用し
ても、生分解性樹脂と混練する際に別々にあるいは同時
に添加して使用してもよい。消石灰及び生石灰は、通
常、０．２〜８０μｍ程度の粉末乃至粒子として使用さ
れる。In the present invention, slaked lime is used in a mixture with quicklime, but quicklime is used in a range of 1 to 40% by weight, preferably 2 to 10% by weight based on the weight of the slaked lime. If the amount is too small, it is difficult to prevent foaming during resin processing. If the amount is too large, the effect of preventing foaming does not change even if it is used more. Slaked lime and quick lime may be mixed in advance or used separately or simultaneously when kneading with the biodegradable resin. Slaked lime and quick lime are usually used as powder or particles of about 0.2 to 80 μm.
【０００８】本発明において生分解性樹脂としてポリエ
ステル系樹脂を使用する場合には、樹脂加工時の加水分
解を防ぐために消石灰と生石灰は表面を炭酸カルシウム
化したものを使用することが望ましい。炭酸カルシウム
化は、消石灰と生石灰のそれぞれの重量の０．１〜４０
重量％の範囲が好ましい。消石灰と生石灰の表面の炭酸
カルシウム化は、粉末状あるいは粒子状のこれらと炭酸
ガスを接触させることによって容易に行われるが、炭酸
カルシウム化の方法は特に限定されない。When a polyester resin is used as the biodegradable resin in the present invention, it is desirable to use slaked lime and quick lime whose surfaces have been converted to calcium carbonate in order to prevent hydrolysis during resin processing. Calcium carbonate is 0.1 to 40 times the weight of each of slaked lime and quick lime.
A range of weight% is preferred. Calcification of calcium carbonate on the surfaces of slaked lime and quicklime is easily performed by contacting powdery or particulate calcium carbonate with carbon dioxide, but the method of calcium carbonate conversion is not particularly limited.
【０００９】本発明の樹脂組成物は、通常の方法で、例
えば、２軸押出機等を用いて加熱溶融状態の生分解性樹
脂と消石灰及び生石灰又は、これらの炭酸カルシウム化
品を混練し、造粒化することによって製造される。その
際、本発明の樹脂組成物の使用目的に応じて、着色剤、
紫外線吸収剤、酸化防止剤、可塑剤、スリップ剤、帯電
防止剤、無機フィラー等の配合剤を適宜添加することが
できるが、これらの配合剤の種類や使用量は特に制限さ
れない。かくして得られる本発明の樹脂組成物は、射出
成形、ブロー成形等の従来の成形法によって使用目的に
適したフィルム、シート、パイプ、繊維、不織布、その
他の成形品に成形される。The resin composition of the present invention is kneaded by a conventional method, for example, using a twin-screw extruder or the like, with the biodegradable resin in a heated and molten state mixed with slaked lime and quick lime or a calcium carbonate product thereof. Manufactured by granulation. At that time, depending on the purpose of use of the resin composition of the present invention, a coloring agent,
Compounding agents such as an ultraviolet absorber, an antioxidant, a plasticizer, a slip agent, an antistatic agent, and an inorganic filler can be appropriately added, but the types and amounts of these compounding agents are not particularly limited. The resin composition of the present invention thus obtained is formed into films, sheets, pipes, fibers, nonwoven fabrics and other molded products suitable for the intended use by conventional molding methods such as injection molding and blow molding.
【００１０】[0010]
【実施例】次に実施例を挙げて本発明を更に具体的に説
明する。文中の部及び％は特に断りのない限り重量基準
である。Next, the present invention will be described more specifically with reference to examples. Parts and percentages in the text are based on weight unless otherwise specified.
【００１１】実施例１ 消石灰とその重量の１０％のドライアイスをプラスチッ
ク容器に入れ、密閉状態で混合し、その後３時間放置し
て炭酸カルシウム化消石灰を得た。同様にして炭酸カル
シウム化生石灰を得た。これらを用い下記の配合処方に
より４５ｍｍ２軸押出機で混練、ペレット化した生分解
性樹脂組成物を得た。 配合処方 炭酸カルシウム化消石灰 ２０部 炭酸カルシウム化生石灰 ２部 ステアリン酸カルシウム ４部 セルグリーンＰ−ＨＢ０２（＊） ７４部 （＊）ダイセル化学工業社製ポリカプロラクトン系生分解性樹脂 得られたペレット化生分解性樹脂組成物を用いてインフ
レーション押出機にて厚さ５０μｍのフィルムを作製し
た。このフィルムは発泡はなく良好であった。又、この
フィルムから短冊状試験片を切り取り、強度特性を測定
したが強度低下は認められず、上記生分解性樹脂の加水
分解は防止された。Example 1 Slaked lime and dry ice of 10% by weight of the slaked lime were put in a plastic container, mixed in a closed state, and then left for 3 hours to obtain calcium carbonate slaked lime. Similarly, calcium carbonate quicklime was obtained. Using these, a biodegradable resin composition kneaded and pelletized by a 45 mm twin-screw extruder according to the following formulation was obtained. Formulated calcium carbonate slaked lime 20 parts Calcium carbonate quick lime 2 parts Calcium stearate 4 parts Cell Green P-HB02 (*) 74 parts (*) Polycaprolactone-based biodegradable resin manufactured by Daicel Chemical Industries, Ltd. A film having a thickness of 50 μm was prepared using a conductive resin composition by an inflation extruder. This film was good without foaming. Further, a strip-shaped test piece was cut out from this film, and the strength characteristics were measured. No decrease in strength was observed, and hydrolysis of the biodegradable resin was prevented.
【００１２】参考例 炭酸カルシウム化消石灰及び生石灰を、通常の消石灰及
び生石灰に代える以外は実施例１と同様にして樹脂組成
物を製造したが、生分解性樹脂の加水分解によるドロー
ダウン現象によりペレット化ができなかった。Reference Example A resin composition was produced in the same manner as in Example 1 except that calcium carbonated slaked lime and quick lime were replaced with normal slaked lime and quick lime, but pellets were formed by a drawdown phenomenon due to hydrolysis of the biodegradable resin. Could not be converted.
【００１３】[0013]
【発明の効果】以上の本発明によれば、樹脂加工時の発
泡や生分解性樹脂の加水分解による物性低下が防止され
た消石灰が添加された生分解性樹脂組成物が提供され
る。本発明の生分解性樹脂組成物は、土木資材、農業資
材や園芸資材等の製造に好適であり、これらの用途に使
用後は消石灰による土壌改良が可能である。According to the present invention described above, there is provided a biodegradable resin composition to which slaked lime is added, in which physical properties are prevented from being reduced by foaming during resin processing and hydrolysis of the biodegradable resin. The biodegradable resin composition of the present invention is suitable for production of civil engineering materials, agricultural materials, horticultural materials, and the like, and after use in these applications, soil improvement by slaked lime is possible.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ０９Ｋ 101:00 Ｆターム(参考） 4H026 AA04 AB03 4J002 AA001 AB041 AB051 BE021 CF181 CF191 CG041 CL001 CL081 DE086 FB076 GA02──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // C09K 101: 00 F term (Reference) 4H026 AA04 AB03 4J002 AA001 AB041 AB051 BE021 CF181 CF191 CG041 CL001 CL081 DE086 FB076 GA02
Claims (2)
０重量％の生石灰との混合物を０．０５〜６０重量％添
加してなる生分解性樹脂組成物。1. A biodegradable resin comprising slaked lime and 1-4.
A biodegradable resin composition comprising 0.05 to 60% by weight of a mixture with 0% by weight quicklime.
ム化されている請求項１に記載の生分解性樹脂組成物。2. The biodegradable resin composition according to claim 1, wherein the surface of the quicklime and slaked lime is calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09804599A JP3415060B2 (en) | 1999-04-05 | 1999-04-05 | Biodegradable resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09804599A JP3415060B2 (en) | 1999-04-05 | 1999-04-05 | Biodegradable resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000290515A true JP2000290515A (en) | 2000-10-17 |
| JP3415060B2 JP3415060B2 (en) | 2003-06-09 |
Family
ID=14209191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09804599A Expired - Fee Related JP3415060B2 (en) | 1999-04-05 | 1999-04-05 | Biodegradable resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3415060B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002266340A (en) * | 2001-03-08 | 2002-09-18 | Unitika Ltd | Drain material and method for accelerating decomposition thereof |
| KR101334340B1 (en) * | 2010-06-15 | 2013-11-29 | 주식회사 도화엔지니어링 | Bio-Degradable Plastic Board Drain and the manufacturing way containing calcium hydroxide |
| CN106810837A (en) * | 2015-11-30 | 2017-06-09 | 西安普草瑞珊生物科技有限责任公司 | Nanometer calcium Study of Biodegradation of Common compound resin and its preparation and application |
| CN109294186A (en) * | 2018-09-10 | 2019-02-01 | 刘辉 | A kind of antibacterial food box |
| JP2021137767A (en) * | 2020-03-09 | 2021-09-16 | 株式会社Ｍｃラボ | desiccant |
-
1999
- 1999-04-05 JP JP09804599A patent/JP3415060B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002266340A (en) * | 2001-03-08 | 2002-09-18 | Unitika Ltd | Drain material and method for accelerating decomposition thereof |
| KR101334340B1 (en) * | 2010-06-15 | 2013-11-29 | 주식회사 도화엔지니어링 | Bio-Degradable Plastic Board Drain and the manufacturing way containing calcium hydroxide |
| CN106810837A (en) * | 2015-11-30 | 2017-06-09 | 西安普草瑞珊生物科技有限责任公司 | Nanometer calcium Study of Biodegradation of Common compound resin and its preparation and application |
| CN109294186A (en) * | 2018-09-10 | 2019-02-01 | 刘辉 | A kind of antibacterial food box |
| JP2021137767A (en) * | 2020-03-09 | 2021-09-16 | 株式会社Ｍｃラボ | desiccant |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3415060B2 (en) | 2003-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101484521B (en) | Novel biodegradable polymer composition useful for the preparation of biodegradable plastic and a process for the preparation of said composition | |
| KR100806985B1 (en) | Aliphatic polyester composition and flexible products | |
| US6350531B1 (en) | Biodegradable plastic molded article | |
| JP2020531672A (en) | Liquid compositions containing biological entities and their use | |
| EP4219628B1 (en) | Resin composition for injection molding, and injection-molded object | |
| JPH0623260B2 (en) | Microbial degradable thermoplastic resin molding and method for producing the same | |
| WO2024222148A1 (en) | Degradation auxiliary agent for degrading pp and pe | |
| EP0577562B1 (en) | Biodegradable plastic materials, method of producing them, and their use | |
| JP2021055084A (en) | Film | |
| KR100428953B1 (en) | Aliphatic polyester composition for masterbatch and process for producing aliphatic polyester film using said composition | |
| JP2000290515A (en) | Biodegradable resin composition | |
| JP3430125B2 (en) | Aliphatic polyester composition for masterbatch and method for producing aliphatic polyester film using the composition | |
| TW201309756A (en) | Composition containing biodegradable resin, drain board and its core made of the composition | |
| JP2002179898A (en) | Antistatic polylactic acid resin composition | |
| JP4562852B2 (en) | Biodegradable and antistatic aliphatic polyester resin composition | |
| JP2002363432A (en) | Biodegradable plastic composition | |
| CN114181447B (en) | Biodegradable master batch and application thereof | |
| KR100288054B1 (en) | Degrading polyolefin resin composition and preparation method thereof | |
| JPH11275986A (en) | Degradable agricultural multi-film | |
| CA2283499A1 (en) | Improved biodegradable plastics material and a method for its manufacture | |
| JPH09137069A (en) | Biodegradable composition | |
| JP2000256471A (en) | Biodegradable film | |
| CN116003981A (en) | Foamable biodegradable bead material and foaming bead thereof | |
| CN120682609B (en) | Preparation process of PET polyester degradable plastic sheet | |
| JP2000342083A (en) | Degradable mulching film and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080404 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090404 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100404 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |