CN102585340A - Production method of plastic greenhouse film with heat insulating function - Google Patents
Production method of plastic greenhouse film with heat insulating function Download PDFInfo
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- CN102585340A CN102585340A CN2012100247151A CN201210024715A CN102585340A CN 102585340 A CN102585340 A CN 102585340A CN 2012100247151 A CN2012100247151 A CN 2012100247151A CN 201210024715 A CN201210024715 A CN 201210024715A CN 102585340 A CN102585340 A CN 102585340A
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- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Protection Of Plants (AREA)
- Greenhouses (AREA)
Abstract
The invention discloses a production method of a plastic greenhouse film with a heat insulating function. The following materials are prepared in parts by weight: 100 parts of LLDPE (linear low density polyethylene), 10-15 parts of LDPE (low-density polyethylene), 3-8 parts of polyolefine master batch, 1-2 parts of talc powder, 0.25-0.35 part of plastic fluorescent whitening agent 0B-1, 0.2-0.4 part of fatty acid amide as a dispersant, and 0.01-0.02 part of iron stearate as a photosensitizer. The production method comprises the following steps: carrying out oven drying of the materials at 70 DEG C, stirring in a high-speed stirrer for 20min, and controlling the temperature in the stirrer to be 50-60 DEG C; and adding the materials into an extruding machine after the stirring is finished, wherein the operating condition of the extruding machine is: a temperature of 150-160 DEG C, and obtaining the product with a blow molding machine. Compared with the ordinary agricultural films, the greenhouse temperature is increased by 2-2.5 DEG C and the ground temperature is increased by 2.3-2.6 DEG C; the light transmittance is 92%; and the high-temperature duration is 60 days.
Description
Technical field
The present invention relates to agricultural technology field, in particular a kind of heat insulation function plastic greenhouse film working method.
Background technology
The canopy film is the important production means of agriculture prodn; The canopy face that is mainly used in proportion of crop planting covers, and can impel farm crop precocity, high yield, off-season cultivation, has insulation, preserves moisture, improves the crop growth environment temperature; Improve the effect of crop quality, insulation is the topmost effect of canopy film.Agricultural canopy film be used for heliogreenhouse, green house of vegetables and spring shed etc. mould the canopy greenhouse and cover domestic very general.As promoting the agriculture prodn development, realizing that important measures of agricultural modernization gain public acceptance, become the important component part of implementing the plastics cultivation in China's agriculture prodn and being applied to other association area, obtained remarkable economic efficiency and social benefit.
China is large agricultural country, also is mulch film and the production of canopy film in the world and uses maximum countries.The canopy film area coverage of China in 2010 surpasses 5 * 10
10m
2Along with people's is advocated green living, the improving constantly of agricultural planting technique, and the fast development of agricultural high-tech, and China's agriculture prodn can continue to increase the demand of functional canopy film.Country puts into effect relevant policies in recent years continuously, and the R&D intensity and the popularization of various functional greenhouse films continued to increase, and impels functional greenhouse film demand in recent years to increase sharply.Therefore researching and developing new function canopy film has development potentiality.According to the growth needs of farm crop, the canopy film can be divided into common plastics canopy film, functional plastics canopy film, controlled functional plastics canopy film.Thermal insulation greenhouse film function of dominant property plastic greenhouse film, good thermal insulation greenhouse film not only require absorb more solar thermal energy daytime, and require to distribute night less heat energy.Solar irradiation is mapped to whole energy on ground, mainly concentrates on the wavelength region of 0.3-3 μ m, and therefore, the high light transmittance of canopy film is the key factor that absorbs sun power.High light transmittance is to guarantee that plastic sheeting for farm use covers the one of the main reasons that promotes crop growth, be canopy film daytime through the required visible light of plant-growth photosynthesis, the visible light that passes through is many more, photosynthesis of plant is good more, simultaneously, the temperature in booth and greenhouse is also high more.The heat that surface soil absorbs outwards radiate with infrared rays again at night, so canopy film heat insulation effect will be got well, will certain iris action be arranged to infrared rays.Generally speaking, the canopy film requires to pass through as much as possible visible light, intercepts infrared rays, makes to absorb more heat daytime the less heat of loss at night.The ability of canopy film through visible light is strong more, and it is strong more to intercept ultrared ability, and then heat insulation effect is good more, and the effect that helps crop growth is just remarkable more.The key of thermal insulation greenhouse film production is to strengthen the transmitance of canopy film to visible light, improves the canopy film to ultrared reflectivity, reduces the transmitance of canopy film in other words.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency that is directed against prior art provides a kind of heat insulation function plastic greenhouse film working method.
Technical scheme of the present invention is following:
A kind of heat insulation function plastic greenhouse film working method; It is characterized in that, prepare batching by following weight part: LLDPE100 part, LDPE10 part, polyolefin masterbatch 3-8 part, talcum powder 1-2 part, plastics white dyes OB-1 consumption 0.25-0.35 part, dispersion agent adopt fatty acid amide 0.2-0.4 part, photosensitizers to adopt iron stearate 0.01-0.02 part; To prepare burden earlier 70 ℃ of oven dry down, and in impeller, stir 20min then together, and the temperature in the control stirrer is 50-60 ℃; After stirring end batching is joined forcing machine, forcing machine operational condition: temperature 150-160 ℃, make product through blow moulding machine again, 150-160 ℃ of blow moulding machine temperature out.
Quality product: the examination and test of products and judgment basis: GB4455-2006 " agricultural is with blow moulded polyethyene canopy film ".Thickness: 0.08mm; Tensile strength: vertical 24.4MPa, laterally 21.1MPa; Elongation at break: vertical 890%, horizontal 860%; Angle tear strength: vertical 130kN/m, laterally 140kN/m.Compare with ordinary agricultural membrane, the canopy temperature improves 2-2.5 ℃, and ground temperature improves 2.3-2.6 ℃; Transmittance: 92%; The high temperature lasting period: 60d.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
Adopt fatty acid amide 0.2-0.4 part, photosensitizers to adopt iron stearate 0.01-0.02 part by 100 parts of (weight part, down together) LLDPE (LLDPE), LDPE10-15 part, polyolefin masterbatch (producing) 3-8 part, talcum powder 1-2 part, plastics white dyes OB-1 consumption 0.25-0.35 part, dispersion agents by Mian County, Shaanxi Qin Jiang plastics Fabritex S.r.l..To prepare burden earlier and in baking oven, dry down, and in impeller, stir 20min then together, and the temperature in the control stirrer is 50-60 ℃ at 70 ℃.After stirring end batching is joined forcing machine, forcing machine operational condition: temperature 150-160 ℃, make product through blow moulding machine again, 150-160 ℃ of blow moulding machine temperature out.Last rolling, metering, check, the packing of product.
Quality product: the examination and test of products and judgment basis: GB4455-2006 " agricultural is with blow moulded polyethyene canopy film ".Thickness: 0.08mm; Tensile strength: vertical 24.4MPa, laterally 21.1MPa; Elongation at break: vertical 890%, horizontal 860%; Angle tear strength: vertical 130kN/m, laterally 140kN/m.
Product performance: compare with ordinary agricultural membrane, the canopy temperature improves 2-2.5 ℃, and ground temperature improves 2.3-2.6 ℃; Transmittance: 92%; The high temperature lasting period: 60d.
Products characteristics: high transmission rate, high insulation; Toughness is strong; Ageing-resistant etc.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (1)
1. heat insulation function plastic greenhouse film working method; It is characterized in that, prepare batching by following weight part: LLDPE100 part, LDPE10-15 part, polyolefin masterbatch 3-8 part, talcum powder 1-2 part, plastics white dyes OB-1 consumption 0.25-0.35 part, dispersion agent adopt fatty acid amide 0.2-0.4 part, photosensitizers to adopt iron stearate 0.01-0.02 part; To prepare burden earlier 70 ℃ of oven dry down, and in impeller, stir 20min then together, and the temperature in the control stirrer is 50-60 ℃; After stirring end batching is joined forcing machine, forcing machine operational condition: temperature 150-160 ℃, make product through blow moulding machine again, 150-160 ℃ of blow moulding machine temperature out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024715.1A CN102585340B (en) | 2012-02-06 | 2012-02-06 | Production method of plastic greenhouse film with heat insulating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024715.1A CN102585340B (en) | 2012-02-06 | 2012-02-06 | Production method of plastic greenhouse film with heat insulating function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102585340A true CN102585340A (en) | 2012-07-18 |
| CN102585340B CN102585340B (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210024715.1A Expired - Fee Related CN102585340B (en) | 2012-02-06 | 2012-02-06 | Production method of plastic greenhouse film with heat insulating function |
Country Status (1)
| Country | Link |
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| CN (1) | CN102585340B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613825A (en) * | 2013-11-08 | 2014-03-05 | 苏州市双赢包装材料有限公司 | Processing technique for producing plastic thin film from mixed polyethylene materials |
| CN104072844A (en) * | 2014-06-17 | 2014-10-01 | 中国科学院广州能源研究所 | Diffusion agricultural film |
| CN106009161A (en) * | 2016-06-08 | 2016-10-12 | 韩立 | Agricultural degradable film having antibacterial function |
| CN106046492A (en) * | 2016-07-05 | 2016-10-26 | 苏州科淼新材料有限公司 | PE (polyethylene) greenhouse film and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001089611A (en) * | 1999-09-24 | 2001-04-03 | Japan Polyolefins Co Ltd | Polyolefin based resin composition, its film and agricultural film |
| KR20100055553A (en) * | 2008-11-18 | 2010-05-27 | 호남석유화학 주식회사 | Polyethylene compositions and process for producing the same and polyethylene film having the same compositions |
| CN101831098A (en) * | 2010-04-20 | 2010-09-15 | 安徽中诚塑业科技有限公司 | Degradable agricultural film |
| EP2335906A1 (en) * | 2009-12-21 | 2011-06-22 | Trioplast AB | Prestretched film |
| CN102250410A (en) * | 2011-06-23 | 2011-11-23 | 山东农业大学 | Shed film special for ginger |
-
2012
- 2012-02-06 CN CN201210024715.1A patent/CN102585340B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001089611A (en) * | 1999-09-24 | 2001-04-03 | Japan Polyolefins Co Ltd | Polyolefin based resin composition, its film and agricultural film |
| KR20100055553A (en) * | 2008-11-18 | 2010-05-27 | 호남석유화학 주식회사 | Polyethylene compositions and process for producing the same and polyethylene film having the same compositions |
| EP2335906A1 (en) * | 2009-12-21 | 2011-06-22 | Trioplast AB | Prestretched film |
| CN101831098A (en) * | 2010-04-20 | 2010-09-15 | 安徽中诚塑业科技有限公司 | Degradable agricultural film |
| CN102250410A (en) * | 2011-06-23 | 2011-11-23 | 山东农业大学 | Shed film special for ginger |
Non-Patent Citations (1)
| Title |
|---|
| 于文杰等: "《塑料助剂与配方设计技术 第3版》", 31 July 2010 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103613825A (en) * | 2013-11-08 | 2014-03-05 | 苏州市双赢包装材料有限公司 | Processing technique for producing plastic thin film from mixed polyethylene materials |
| CN104072844A (en) * | 2014-06-17 | 2014-10-01 | 中国科学院广州能源研究所 | Diffusion agricultural film |
| CN106009161A (en) * | 2016-06-08 | 2016-10-12 | 韩立 | Agricultural degradable film having antibacterial function |
| CN106046492A (en) * | 2016-07-05 | 2016-10-26 | 苏州科淼新材料有限公司 | PE (polyethylene) greenhouse film and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102585340B (en) | 2015-03-18 |
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