KR20010095606A - Mtehod of Making Resolvable Film for Plant Growing - Google Patents
Mtehod of Making Resolvable Film for Plant Growing Download PDFInfo
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- KR20010095606A KR20010095606A KR1020000018865A KR20000018865A KR20010095606A KR 20010095606 A KR20010095606 A KR 20010095606A KR 1020000018865 A KR1020000018865 A KR 1020000018865A KR 20000018865 A KR20000018865 A KR 20000018865A KR 20010095606 A KR20010095606 A KR 20010095606A
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- South Korea
- Prior art keywords
- peat
- thin film
- film
- mixture
- plant cultivation
- Prior art date
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- 239000010409 thin film Substances 0.000 claims abstract description 30
- 239000003415 peat Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000010408 film Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 5
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 3
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000012364 cultivation method Methods 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 17
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 229920002125 Sokalan® Polymers 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 abstract 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 abstract 1
- KFSLWBXXFJQRDL-UHFFFAOYSA-N peroxyacetic acid Substances CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 abstract 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 239000004021 humic acid Substances 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- -1 Polyethylene Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000954 Polyglycolide Polymers 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/52—Mulches
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Environmental Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
Description
본 발명은 식물 재배용 분해 박막의 제조방법에 관한 것으로서, 더욱 구체적으로는 종래의 식물 재배용 박막과 달리 공해를 줄이고 직접 토양을 개선시키면서 식물의 생장을 촉진하는 식물 재배용 분해 박막의 제조방법에 관한 것이다.The present invention relates to a method for producing a disintegrating thin film for plant cultivation, and more particularly, to a method for producing a disintegrating thin film for plant cultivation, which promotes plant growth while reducing pollution and directly improving soil unlike conventional plant cultivation thin films.
종래의 농업용 박막은 토질에서 생장하는 식물의 자연조건을 개선하는 것에만 주안점을 두어 식물의 생장을 촉진하는 토양의 온도, 수분을 보호하는 효과만을 고려하였으나, 사용후 분해되지 않는 농약의 처리문제를 고려하지는 못하였다. 박막으로 많이 사용하는 폴리에틸렌 수지는 사용후 제거하기가 매우 어려우며, 재활용하기도 곤란하고 소각에도 문제가 생기게 된다.Conventional agricultural thin film only focuses on improving the natural conditions of plants growing in soil, considering only the effect of protecting soil temperature and moisture, which promotes plant growth. It was not considered. Polyethylene resin, which is frequently used as a thin film, is very difficult to remove after use, is difficult to recycle, and causes problems in incineration.
이를 감안하여 현재 연구 또는 제조 중에 있는 방법의 실예는 두 가지로 나눌 수 있는데, 그 하나는 전분을 이용하는 것이고, 다른 하나는 생물분해 Polymer를 만들어 박막을 제조하는 것이다. 전자의 방법은 인류가 식량으로서 생산한 작물에서 추출한 전분을 식물 재배를 위해 다시 토양에 공급한다는 점에서 비효율적인단점이 있다. 또한 후자의 방법은 제조에 많은 비용이 소요되는 단점이 있다(R1COOR2, R1OR2, R1CONHR2, {Poly(glycolic acid)}PCL 등이다).In view of this, there are two examples of the method currently being researched or manufactured. One is to use starch, and the other is to make a biodegradable polymer to manufacture a thin film. The former method is inefficient in that the starch extracted from crops produced by humans is supplied back to the soil for plant cultivation. In addition, the latter method has a disadvantage in that the manufacturing cost is high (R 1 COOR 2 , R 1 OR 2 , R 1 CONHR 2 , {Poly (glycolic acid)} PCL, etc.).
상기와 같은 단점을 고려하여 본 발명은 천연 자원인 토탄(Peat;土炭)을 사용한다. 즉, 박막의 목적은 식물의 생장을 촉진하기 위하여 부족한 자연 기후조건인 온도와 수분 등을 보호하는 동시에, 토양에 양분을 보충하여 토질을 개선하기 위한 것인데, 이를 천연 자원을 사용하여 만들어서 공해를 줄일 수 있게 한 것이다.In view of the above disadvantages, the present invention uses natural resources peat (Peat; 土 炭). That is, the purpose of the thin film is to improve the soil quality by supplementing the soil with nutrients to the soil while protecting the natural climatic conditions, such as temperature and water, which are insufficient for promoting plant growth. It was made possible.
식물 재배용 박막을 토탄을 이용하여 만든 예로서 한국특허 출원 10-1999-0050407이 있다. 그러나 상기 출원서에 기재된 식물 재배용 박막은 토탄의 친수성 성질을 이용한 것인 반면에, 본 발명의 박막은 토탄의 친유성 성질을 이용한 것이다. 이러한 차이에 의해 본 발명은 제조 공정이 간편하고 용이하게 되고 사용에 편리한 강도와 신율과 방수성을 얻을 수 있으며, 분해정도를 조절하기가 용이하게 된다. 또한 현재 기계 제조 공정에 사용하고 있는 T막법을 그대로 이용할 수 있게 된다. 또한 Melt Extrusion 방법과 Casting 방법을 사용할 수도 있다.An example of making a plant cultivation thin film using peat is Korean Patent Application No. 10-1999-0050407. However, the thin film for plant cultivation described in the above application utilizes the hydrophilic property of peat, whereas the thin film of the present invention uses the lipophilic property of peat. Due to such a difference, the present invention can be easily and easily manufactured, obtains strength, elongation and waterproofness, which are convenient to use, and facilitates control of the degree of decomposition. In addition, the T film method currently used in the machine manufacturing process can be used as it is. You can also use the melt extrusion method and casting method.
본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 자연상태에서 쉽게 분해되는 식물 재배용 분해 박막의 제조방법을 제공함을 목적으로 한다.The present invention has been made to solve the above problems, it is an object of the present invention to provide a method for producing a decomposition thin film for plant cultivation easily decomposed in the natural state.
본 발명의 또다른 목적은 수지 박막이 분해되면서 토양에 양분을 공급하여 토질을 개선시킬 수 있도록 한 식물 재배용 분해 박막의 제조방법을 제공하는 것이다.Another object of the present invention is to provide a method for producing a decomposition thin film for plant cultivation to improve the soil quality by supplying nutrients to the soil while the resin thin film is decomposed.
본 발명의 또다른 목적은 토양에서 완전히 분해되도록하여 사용후 박막 제거가 필요없는 식물 재배용 분해 박막의 제조방법을 제공하는 것이다.It is another object of the present invention to provide a method for producing a decomposed thin film for plant cultivation so that it is completely decomposed in soil and does not need to be removed after use.
상기 목적을 달성하기 위한 본 발명에 따른 식물 재배용 분해 박막은 미세한 분말로 이루어진 토탄(65-84 Wt%)과 Plasticizer(1-5 Wt%)와 Polymer(15-30 Wt%)를 90-180℃ 에서 혼합하는 공정과, 상기 혼합물을 Melt Extrusion 공정 및 량각 공정을 거쳐서 제조된다. 이때 사용하는 토탄은 여러 지방에서 생산되는 토탄을 사용할 수 있으나, 부식연대가 짧고 유기물 함양이 높을수록 좋다.Decomposition thin film for plant cultivation according to the present invention for achieving the above object is a peat (65-84 Wt%) and Plasticizer (1-5 Wt%) and Polymer (15-30 Wt%) made of fine powder 90-180 ℃ The process of mixing in, and the mixture is prepared through the Melt Extrusion process and the amount angle process. The peat used may be peat produced in various fats, but the shorter the corrosion age and the higher the organic content, the better.
본 발명에서 사용하는 Plasticizer(Plasticity agent)는 특별한 제한은 없으며, DOS, BPBG, DOZ, DBP, DHP, DOP, DTDP, BOP, BBP 중 어느 하나, 또는 두가지 이상 혼합하여 사용해도 좋다. 사용량은 중량%로 1-5%로 한다.Plasticizer (Plasticity agent) used in the present invention is not particularly limited, may be used in any one of DOS, BPBG, DOZ, DBP, DHP, DOP, DTDP, BOP, BBP, or a mixture of two or more. The amount used is 1 to 5% by weight.
사용 순서로서 토탄에 Plasticity agent를 Polymer 보다 먼저 혼합하는 것이 바람직하다.In order to use, it is preferable to mix plasticity agent with peat before polymer.
본 발명에 사용하는 Polymer는 PVA, LDPE, LLDPE, EVA, EEA, PAA 등을 한가지 혹은 두가지 혼합사용해도 좋다. 사용량은 사용목적에 따라 15-30 중량%로 한다. 혼합할 때의 온도는 90-180℃ 로서 사용하는 Polymer의 종류에 따라 조절할 수 있다. 제조용 설비로서는 현재 사용하는 Plastic 제조용 T막법 설비를 이용한다. 요구에 따라서는 Casting 방법도 사용할 수 있다.The polymer used in the present invention may be one or a mixture of PVA, LDPE, LLDPE, EVA, EEA, PAA and the like. The amount used is 15-30% by weight depending on the purpose of use. The temperature at the time of mixing can be adjusted according to the kind of polymer used as 90-180 degreeC. As a manufacturing facility, the T film method facility for plastic manufacture currently used is used. The casting method can be used if required.
본 발명의 현저한 특징은 토탄을 주성분으로 박막을 제조하므로 분해성이 강하며, 토탄에 함유된 20-30%의 Humic acid와 N, K, P, Mn, Zn, Mg 등 토양의 비료성분이 막분해 된 후 직접 토양으로 들어간다. 그리하여 토질을 개선시켜 공해를 줄일 수 있도록 한 것이다.A remarkable feature of the present invention is that since the thin film is made of peat as a main component, it is highly decomposable, and 20-30% of humic acid contained in the peat and fertilizer components of soils such as N, K, P, Mn, Zn, and Mg are decomposed. And then directly into the soil. Thus, the soil quality can be improved to reduce the pollution.
이하에서는 본 발명의 실시예를 상세히 설명하고자 한다.Hereinafter will be described in detail an embodiment of the present invention.
천연물인 토탄은 형성시기와 형성될 때의 식물의 종류에 따라 유기물과 무기물의 비율이 다르며, 부식산과 함유한 기타 유기물의 양도 다르게 된다. 따라서 토탄은 아주 복잡한 성분과 화학구조를 가지고 있으며, 그 중 부식산은 천연 고분자 물질로서 페놀기와 카르보닐기에 포함되는 것으로 유기질 비료로 사용되고 있다.Peat, a natural product, has a different ratio of organic matter and inorganic matter depending on the time of formation and the type of plant formed, and the amount of humic acid and other organic matters is different. Therefore, peat has a very complex component and chemical structure, and among them, humic acid is a natural high molecular material, which is contained in phenol group and carbonyl group and is used as organic fertilizer.
본 발명은 이와 같은 토탄이 유기물 친성과 무기물 친성을 포함한 혼합물이기 때문에 이 두가지 성질을 충분히 이용하면 친수와 친유성막을 만들 수 있으며, 다양한 용도와 성질을 나타낼 수 있다.Since the peat is a mixture including organic affinity and inorganic affinity, the present invention can make a hydrophilic film and a lipophilic film by fully utilizing these two properties, and can exhibit various uses and properties.
본 발명은 친유성을 이용하여, 또는 친유성을 제고하기 위하여 토탄을 표면처리하거나 유기물과 무기물을 간단히 분리하여도 좋다. 분리 방법은 간단하게 물에 침적시켜서 가라앉는 것은 버리고, 물에 뜨는 것을 꺼내어서 건조시킨다. 건조는 70℃ 에서 열풍가열한다.In the present invention, the peat may be surface-treated or organic matter and inorganic matter may be separated by using lipophilic or to enhance lipophilic. The separation method is simply immersed in water, discarding the sinking, taking out the water and dried. Drying is heated by hot air at 70 ° C.
상기 과정에서 통과한, 건조한 토탄분말과 Plasticizer를 비율에 맞추어 혼합시킨다. 혼합물이 균일하게 된 후 Polymer를 혼합시킨다. 기계를 사용하여 혼연(混煉)시켜 균일하게 하면서 90-180℃ 범위의 선택온도에서 mixing을 충분하게하여 일정한 형태로 만든다. 예컨데, 작은 사방형 입자 또는 작은 구형 입자로 만드는것이다.The dry peat powder and the plasticizer passed in the above process are mixed in proportion. After the mixture becomes uniform, the polymer is mixed. The machine is kneaded and homogenized to achieve a uniform shape with sufficient mixing at selected temperatures in the range of 90-180 ° C. For example, small rhombus particles or small spherical particles.
다음 공정은 Extruder에 넣어 90-180℃ 온도에서 일정한 시간이 경과한 후 노즐을 통하여 압출하여 막을 만든다.The next process is put into an extruder and after a certain time at 90-180 ℃ temperature extruded through a nozzle to make a film.
이 막을 량각기에서 량각시키고 롤러로 압축시켜 감으면 식물 재배용 분해 박막이 제조되는 것이다. 이와 같은 과정에 의해 제조된 수지 필름은 자연 물질인 토탄과 합성 고분자 혼합물의 성분을 갖는다.Decomposing this film in a batch and compressing with a roller to produce a decomposition thin film for plant cultivation. The resin film produced by this process has a component of a mixture of peat and synthetic polymer which is a natural material.
폴리에틸렌(PE)은 실험한 결과 생물 분해되는 것으로 알려져 있다. 그러나 분해 시간이 너무 길어서(300년) 생물 분해가 되지 않는 것으로 보고 있다. 만일 이 PE를 생물이 거주하여 살 수 있는 물질, 예를 들면 전분, 토탄 등과 혼합하면 폴리에틸렌에 많은 작은 구멍이 생겨서 원래 PE 분해는 양 끝에서부터 시작되지만 많은 구멍에 의해 많은 끝이 생겨서 빨리 분해를 일으키게 된다. 따라서 PE와 생물 분해되는 R2COOR2와 Ester와의 Co-Poly는 더욱 PE계를 빨리 분해시킨다. 이와 같은 원리를 이용하면 생물분해되는 막을 용이하게 제조할 수 있다.Polyethylene (PE) is known to biodegrade as a result of experiments. However, the degradation time is so long (300 years) that the biodegradation is not considered. If this PE is mixed with living inhabitants, such as starch or peat, the polyethylene will have many small holes, so the original PE decomposition starts at both ends, but many holes will cause many ends to break down quickly. do. Therefore, Co-Poly between PE and biodegradable R 2 COOR 2 and Ester decomposes PE. Using this principle, a biodegradable membrane can be easily produced.
상기와 같은 과정과 원리에 의해 제조된 수지 필름은 분해 기간을 6개월부터 8개월로 조절할 수 있게 되는 것으로, 보다 상세히 설명하면 하기와 같다.The resin film produced by the process and principle as described above will be able to adjust the decomposition period from 6 months to 8 months, as described in more detail below.
(실시예 1)(Example 1)
Plastic Cator에 미세한 분말로 형성된 토탄 10g과 DBP 0.4g을 넣고 상온에서 2분간 mixing하고 EVA 입자형을 3g 넣고 110℃ 에서 10분간 Shear Rate을 조절하여 혼연시켜 Pelletized시킨다. 따라서 조립(造粒)된 샘플 4g으로 열압축판에서film을 제조한다. 두께가 0.06mm의 film을 얻어 물리적 성질을 측정하면 강도 1.7N, 신율 200%에 달하는 수지 박막이 형성된다.10 g of peat formed from fine powder and 0.4 g of DBP were added to the plastic cator, mixed at room temperature for 2 minutes, and 3 g of EVA granules were mixed and mixed at 110 ° C. for 10 minutes to adjust the shear rate to pelletize. Therefore, a film is prepared from a thermal compression plate with 4 g of the assembled sample. Obtaining a film with a thickness of 0.06mm and measuring physical properties, a resin thin film having a strength of 1.7N and elongation of 200% is formed.
상기 설명에서는 압축판에서 제조하는 것으로 하였으나, 현재 상용중인 Plastic 제조 공정으로 제조될 수도 있다.In the above description, but is to be manufactured in a compression plate, it may also be produced by a commercial plastic manufacturing process.
(실시예 2)(Example 2)
Plastic Cator에 위와 같은 방법에 따라 EVA를 LLDPE로 바꾸어 130℃ 에서 조작하여 물리적 성질을 측정하면 강도 1.8N, 신율 210%에 달하는 수지 박막이 형성된다.By changing the EVA to LLDPE according to the above method on the Plastic Cator and measuring the physical properties by operating at 130 ℃, a resin thin film of 1.8N strength and 210% elongation is formed.
(실시예 3)(Example 3)
반응기에 미세한 분말로 형성된 토탄 10g과 물 30g을 넣고 교반하면서 가열하여 온도를 80℃ 정도를 유지하면서 PH를 6.4-9.0 정도로 조절한다. NaOH를 0.3g 넣어 30분간 교반하면서 PVA 0.5g과 EVA(707, Emulsion) 2.5g을 넣어 10분간 교반하고, DOP 0.2g을 넣어 90℃ 에서 30분간 교반시킨다. 다음에는 기포를 진공으로 내보내고 유리판에 부어서 박막을 형성한 후, 90℃ 에서 열풍으로 건조시킨다. 그 결과 건조된 수지는 20μ의 두께를 가지게 되며, 강도는 1.4N, 신율은 200%에 달하였다.10 g of peat formed of fine powder and 30 g of water were added to the reactor, and the mixture was heated while stirring to adjust the pH to about 6.4-9.0 while maintaining the temperature of about 80 ° C. After adding 0.3 g of NaOH and stirring for 30 minutes, 0.5 g of PVA and 2.5 g of EVA (707, Emulsion) were added thereto, stirred for 10 minutes, and 0.2 g of DOP was added and stirred at 90 ° C. for 30 minutes. Next, the bubble is discharged in a vacuum, poured into a glass plate to form a thin film, and then dried by hot air at 90 ° C. As a result, the dried resin had a thickness of 20μ, the strength reached 1.4N, elongation reached 200%.
상기 실시예들은 본 발명의 전형적인 예들을 설명한 것으로서, 본 발명은 상기 실시예들에 제한됨이 없이 다양하게 변경하여 이용할 수 있다.The above embodiments have described typical examples of the present invention, and the present invention can be used in various ways without being limited to the above embodiments.
상기와 같은 식물 재배용 분해 박막의 제조방법에 따르면, 원소재를 토탄을 이용하므로 토탄이 함유하고 있는 유기질이 자연상태에서 용이하게 분해됨으로써 분해성 수지 박막을 제공하게 되며, 수지 박막이 분해되면서 토양에 유기질 양분을 공급하여 토질을 개선시키게 되며, 토양에서 완전히 분해되므로 박막을 제거하는 수고를 덜 수 있으며, 경제적으로 사용할 수 있는 효과가 있다.According to the method for producing a plant-decomposed thin film as described above, since the raw material using peat, the organic matter contained in the peat is easily decomposed in a natural state to provide a decomposable resin thin film, and the organic thin film in the soil as the resin thin film is decomposed. It improves soil quality by supplying nutrients, so that it is completely decomposed in the soil, thereby reducing the effort of removing the thin film and economically effective.
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