CN1035310A - Anti-aging and dropless agricultural film - Google Patents
Anti-aging and dropless agricultural film Download PDFInfo
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- CN1035310A CN1035310A CN 88100997 CN88100997A CN1035310A CN 1035310 A CN1035310 A CN 1035310A CN 88100997 CN88100997 CN 88100997 CN 88100997 A CN88100997 A CN 88100997A CN 1035310 A CN1035310 A CN 1035310A
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- plastic sheeting
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- aging
- dripping inhibitor
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Abstract
The invention provides a kind of anti-aging and dropless agricultural film, it is characterized in that with polyethylene sneaking into ethene-acetate ethylene copolymer, as the plastic sheeting for farm use major ingredient, add simultaneously and have synergistic multiple anti-aging agent and dripping inhibitor with this blend as basic material.Therefore, this plastic sheeting for farm use has initial strength height, anti-aging, good heat insulating and the low over-all properties of cost.The continuous usage period of this film reached more than 2 years, and a nothing extended period reached more than 9 months, and crops in greenhouse can increase production 10-25%.
Description
The present invention relates to a kind of agricultural plastics film, particularly a kind of is the dropless agricultural film of major ingredient with the polyolefine.
In the prior art, correlation technique of the present invention is: 1. the spy opens clear 54-71147 to disclose a kind of is the plastic sheeting for farm use that major ingredient adds dripping inhibitor simultaneously with polyethylene (preferably new LDPE (film grade)), goal of the invention is to improve the heat retaining property of plastic sheeting for farm use, and measure is to add silicon-dioxide and the talcous silicane linking agent that adds simultaneously.2. specially open clear 58-122949 to disclose a kind of be the plastic sheeting for farm use that major ingredient adds dripping inhibitor simultaneously with the ethene-vinyl acetate, goal of the invention is to improve the anti-drop property and the sticking inhibition of hot melt of plastic sheeting for farm use, and measure is to add ionic resin and the sticking inhibitor of hot melt.The shortcoming of this plastic sheeting for farm use is that cost height, weathering resistance are poor.The common drawback of above-mentioned prior art is all not consider to improve the performance of plastic sheeting for farm use from the composition of major ingredient, and the dripping inhibitor that is added is an individual.
Correlation technique of the present invention is: the spy opens clear 59-38247 and discloses a kind of resin combination, goal of the invention is to improve the thermotolerance of film, measure is to sneak into 10-35% polyethylene (LDPE or LLDPE) in ethylene-vinyl acetate copolymer, because said composition still is basic material (accounting for more than 40%) with the ethene-vinyl acetate, therefore if with said composition as the agricultural film major ingredient, then still can cause the shortcoming of plastic sheeting for farm use cost height, weathering resistance difference.
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, a kind of not only intensity height, good heat preservation performance are provided, cost is low but also has the dropless agricultural film of good resistance aging resistance.
The present invention is achieved in that with polyethylene as basic material, sneak into ethylene-vinyl acetate copolymer, with this blend as the plastic sheeting for farm use major ingredient, adding simultaneously has synergistic multiple anti-aging agent and dripping inhibitor cooperates system, and the weight % of each component is: polyethylene 60-85, ethylene-vinyl acetate copolymer (EVA) 10-35, anti-aging agent 0.5-1.2, dripping inhibitor 0.8-3, processing modifying agent 0.3-1.
Polyethylene in the said components comprises new LDPE (film grade) (LDPE), linear low density polyethylene (LLDPE) and both blends.(mixed weight %:LLDPE40-90, LDPE10-60).
In the said components, the vinyl acetate content among the EVA is 5-20%; Melting index (MI): EVA is that 1.5-4, LDPE are that 0.3-2, LLDPE are 1-2.5.
Plastic sheeting for farm use provided by the invention is a major ingredient with the blend of polyethylene and EVA, can make plastic sheeting for farm use both have the advantage (this advantage is more outstanding with LLDPE) of polyethylene intensity height, good weatherability, has EVA good heat preservation performance and the advantage strong to the auxiliary agent adsorptivity again.Especially the present invention is that basic material (accounting for more than 60%) makes the low advantage of plastic sheeting for farm use cost more outstanding with the polyethylene.
The anti-aging agent that the present invention adopts is a collaboration system, and its component and weight % are: UV light absorber 5-15, oxidation inhibitor 10-25, optical quenching agent 20-50, hindered amine light stabilizer 30-50.
In the above-mentioned anti-aging agent collaboration system, UV light absorber can be: Alpha-hydroxy-4-oxy-octyl benzophenone (UV-531), α-(3 ' 5 '-di-tert-butyl-2-hydroxy phenyl) chlorobenzotriazole (UV-327), Alpha-hydroxy-4-methoxy benzophenone (UV-9), 8,2,4,6-three (2 '-hydroxyl-4 '-butoxy phenyl)-1,3, the 5-triazine.Oxidation inhibitor can be: four (3-(3 ' 5 '-di-tert-butyl-4-hydroxy phenyl) propionic acid) pentaerythritol ester (antioxidant 1010), 3,5-di-tert-butyl-4-hydroxy phenylpropionic acid octadecyl ester (antioxidant 1076).The optical quenching agent can be: two (3,5-di-tert-butyl-4-hydroxyl benzyl phosphonic acids mono ethyl ester) nickel salt (optical quenching agent 2002).Hindered amine light stabilizer can be: three (1,2,2,6,6-pentamethyl--4-piperidyl) phosphorous acid ester (GW540).
Adopt the anti-aging agent collaboration system can improve the ageing resistance of plastic sheeting for farm use.It is the elongation at break data to using different types of anti-aging agent sample to obtain after the accelerated weathering test of carrying out below: table 1 with the ultraviolet (UV) aging test instrument through 30 hours
The dripping inhibitor that the present invention adopts is the cooperation system, and its component and weight % are: glycerol fatty acid ester class dripping inhibitor 30-50; Sorbitan carboxylic esters class dripping inhibitor 50-70.
In the dripping inhibitor cooperation system, glycerol fatty acid ester class dripping inhibitor can be: glyceryl monostearate, palmitic acid glyceride.Sorbitan carboxylic esters class dripping inhibitor can be: sorbitan mono-oleic acid ester,, sorbitol anhydride SUNSOFT Q-182S.
Adopt dripping inhibitor to cooperate system can prevent that single use glycerol fatty acid ester class dripping inhibitor from influence the shortcoming that plastic sheeting for farm use is transparent and single use sorbitan carboxylic esters class dripping inhibitor easily makes plastic sheeting for farm use be clamminess, and the nothing that can prolong plastic sheeting for farm use is dripped the extended period.Be below with do not have to drip proofing box during four months in the nothing of observed use different sorts dripping inhibitor sample drip effect (by do not have drip to an order that has droplet be followed successively by zero → ⊙ →
→ *).
Table 2
In the last table, No. 1 sample does not add dripping inhibitor, and 2, No. 3 sample adds single dripping inhibitor, and No. 4 samples add dripping inhibitor and cooperate system.
The processing modifying agent that the present invention adopts can be a kind of in the inorganicss such as diatomite, silicon-dioxide, magnesiumcarbonate, aluminium hydroxide, and particle size diameter is 30-150m μ.The effect of processing modifying agent is the oilness that improvement increases because of the adding dripping inhibitor, and elimination is slided, and it is stable that processing is extruded.
The manufacture method of plastic sheeting for farm use provided by the invention is earlier with ethylene-vinyl acetate copolymer and anti-aging agent, dripping inhibitor, processing modifying agent uniform mixing; adopt compressing tablet pelletizing or extruding pelletization; make granular masterbatch, again masterbatch is added to mixing, extrusion-blown modling in the polyethylene.Its objective is that making full use of the EVA molecule has polarity, characteristics strong to the auxiliary agent adsorptive power, makes auxiliary agent be able to mix with resin is full and uniform.
Plastic sheeting for farm use provided by the invention contrast prior art have initial strength height, anti-aging, insulation, performance good, do not have and drip the over-all properties that the phase is long and cost is low.Show by following table 3-6:
1, the physicals of this plastic sheeting for farm use and ageing resistance test: adopt the intensity after Z16-YZ-20-T-T type automatic tension tester test plastic sheeting for farm use initial strength that the smart machine manufacturing in day intrinsic safety field produced and booth are used and compare with the polyethylene ordinary agricultural membrane.(plastic sheeting for farm use specification 2000 * 0.1).
Table 3
2, the transparent heat insulating of this plastic sheeting for farm use can be shown by the correlation data of ground temperature in the heliogreenhouse and room temperature.
Following table be 2-4 months in 1987 of providing of heliogreenhouse center, Hebei province in the heliogreenhouse that Hebei province's Handan District records apart from the face of land mean ground temperature (table 4) of 5 centimeters and room temperature (table 5):
Table 4
In addition, do not observe according to there being the situation of dripping, droplet does not appear in this symphysis continuous use after nine months yet.
Though 3, the cost of this plastic sheeting for farm use slightly improves than ordinary agricultural membrane, obviously be lower than the EVA plastic sheeting for farm use.While, the usage period can reach more than 2 years continuously, in fact also was to have reduced cost owing to this film initial strength height, ageing resistance are good.In addition,, can make the phenological period shift to an earlier date 4-10 days, therefore comparable use normal film volume increase 10-25% because this film transparent heat insulating can directly promote the growth of farm crop in the greenhouse well.
Table 6 is cucumber growing way situations in the greenhouse in heliogreenhouse center, Hebei province 27 days February in 1987 providing:
Table 6
This shows that the economic benefit of using this plastic sheeting for farm use is considerable.
Below in conjunction with embodiment the present invention is described in detail:
Embodiment one:
Earlier with 18KgEVA(vinyl acetate content 15%, MI is 3.5) with anti-aging agent, dripping inhibitor, processing modifying agent uniform mixing, through φ 65 forcing machine extrusions (three sections Heating Zone Temperature of fuselage are followed successively by 130 ℃, 160 ℃, 175 ℃, 175 ℃ of head temperatures), cooling and dicing, promptly make masterbatch.Above-mentioned anti-aging agent is that collaboration system: UV-9 adds 0.05Kg, antioxidant 1010 adds 0.1Kg, optical quenching agent 2002 adding 0.15Kg, GW-540 adding 0.2Kg.Above-mentioned dripping inhibitor is the cooperation system: glyceryl monostearate adds 0.4Kg, adds 0.5Kg, sorbitan mono-oleic acid ester adding 0.1Kg.Above-mentioned processing modifying agent is a silicon-dioxide, particle size diameter 50-100m μ, add-on 0.5Kg.
Above-mentioned masterbatch being joined 35KgLDPE(MI again is 1.0) with 45kgLLDPE(MI be 1.5) mix in the blend, make through φ 150 extrusion blow molding machines (three sections Heating Zone Temperature of fuselage are followed successively by 140 ℃, 175 ℃, 190 ℃, 190 ℃ of head temperatures) that folding footpath is wide to be the plastic sheeting for farm use of 2000mm, thick 0.1mm.The physicals of this plastic sheeting for farm use, ageing resistance and heat-insulating property are seen aforesaid table 3-6.
Embodiment two:
It is 1.0 that the masterbatch that will make with the method and the consumption of the foregoing description one joins 80KgLDPE(MI) in, make plastic sheeting for farm use.
Embodiment three:
It is 1.5 that the masterbatch that the method and the consumption of the foregoing description one made joins 80KgLDPE(MI) in, make plastic sheeting for farm use.
Claims (6)
1, a kind of anti-aging and dropless agricultural film is characterized in that component and weight % are: polyethylene 60-85, ethylene-vinyl acetate copolymer (EVA) 10-35, anti-aging agent 0.5-1.2, dripping inhibitor 0.8-3, processing modifying agent 0.3-1.
2, plastic sheeting for farm use as claimed in claim 1 is characterized in that polyethylene is new LDPE (film grade) (LDPE), linear low density polyethylene (LLDPE) and both blends.
3, plastic sheeting for farm use as claimed in claim 1 is characterized in that anti-aging agent is a collaboration system, and its component and weight % are:
UV light absorber 5-15, oxidation inhibitor 10-25, optical quenching agent 20-50, hindered amine light stabilizer 30-50.
4, plastic sheeting for farm use as claimed in claim 1 is characterized in that dripping inhibitor is the cooperation system, and its component and weight % are:
Glycerol fatty acid ester class dripping inhibitor: 30-50, sorbitan carboxylic esters class dripping inhibitor 50-70.
5, plastic sheeting for farm use as claimed in claim 1, it is one kind of to it is characterized in that processing modifying agent and be diatomite, silicon-dioxide, magnesiumcarbonate, aluminium hydroxide, and particle size diameter is 30-150m μ.
6, the manufacture method of plastic sheeting for farm use as claimed in claim 1 is characterized in that earlier ethylene-vinyl acetate copolymer and anti-aging agent, dripping inhibitor, processing modifying agent uniform mixing, makes granular masterbatch, masterbatch is added to mixing, extrusion-blown modling in the polyethylene again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100997 CN1009557B (en) | 1988-02-23 | 1988-02-23 | Anti-aging and dropless agricultural film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100997 CN1009557B (en) | 1988-02-23 | 1988-02-23 | Anti-aging and dropless agricultural film |
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| Publication Number | Publication Date |
|---|---|
| CN1035310A true CN1035310A (en) | 1989-09-06 |
| CN1009557B CN1009557B (en) | 1990-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100997 Expired CN1009557B (en) | 1988-02-23 | 1988-02-23 | Anti-aging and dropless agricultural film |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052493C (en) * | 1994-11-07 | 2000-05-17 | 青岛新桑达经济技术开发有限公司 | Light converting film |
| CN1069115C (en) * | 1998-07-24 | 2001-08-01 | 青岛新桑达经济技术开发有限公司 | Mecerized fabrics and additives and production thereof |
| CN101942143A (en) * | 2010-08-26 | 2011-01-12 | 无锡吉兴汽车声学部件科技有限公司 | Blended hot melt membrane, production method and application thereof |
| CN101718005B (en) * | 2009-11-27 | 2012-06-27 | 山东胜邦塑胶有限公司 | Antibiotic aging-resistant netting |
| CN102558663A (en) * | 2012-01-09 | 2012-07-11 | 勉县三丰农业科技塑料制品有限公司 | Production method of anti-dropping plastic film |
| CN102660062A (en) * | 2012-03-28 | 2012-09-12 | 杭州华塑色母有限公司 | Anti-droplet high-transparency polyethylene film master batches |
| CN103571024A (en) * | 2012-07-19 | 2014-02-12 | 中国石油天然气股份有限公司 | Long-acting polyolefin anti-fogging film master batch |
| CN103571021A (en) * | 2012-07-19 | 2014-02-12 | 中国石油天然气股份有限公司 | Long-acting polyolefin anti-fogging film master batch |
| CN104163967A (en) * | 2013-05-20 | 2014-11-26 | 青岛供八方塑料有限公司 | Filling master-batch, polyethylene modified film with filling master-batch, and production method thereof |
| CN104494258A (en) * | 2014-11-10 | 2015-04-08 | 哈尔滨工业大学无锡新材料研究院 | Novel agricultural bidirectional stretching polyester film |
| CN105968535A (en) * | 2016-07-05 | 2016-09-28 | 苏州科淼新材料有限公司 | PE agricultural film and preparation method thereof |
| US20180310490A1 (en) * | 2015-10-30 | 2018-11-01 | Dow Global Technologies Llc | Infrared absorbing, heat retaining film |
| CN110564036A (en) * | 2019-08-27 | 2019-12-13 | 湖南登科材料科技有限公司 | rare earth doped modified plastic composite master batch and preparation method thereof |
| CN111234366A (en) * | 2020-04-23 | 2020-06-05 | 福州大学 | Ultraviolet-resistant antifogging polyethylene greenhouse film and preparation method thereof |
| CN111961304A (en) * | 2020-08-21 | 2020-11-20 | 安徽江淮汽车集团股份有限公司 | Polymethyl methacrylate composite material and preparation method thereof |
-
1988
- 1988-02-23 CN CN 88100997 patent/CN1009557B/en not_active Expired
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052493C (en) * | 1994-11-07 | 2000-05-17 | 青岛新桑达经济技术开发有限公司 | Light converting film |
| CN1069115C (en) * | 1998-07-24 | 2001-08-01 | 青岛新桑达经济技术开发有限公司 | Mecerized fabrics and additives and production thereof |
| CN101718005B (en) * | 2009-11-27 | 2012-06-27 | 山东胜邦塑胶有限公司 | Antibiotic aging-resistant netting |
| CN101942143A (en) * | 2010-08-26 | 2011-01-12 | 无锡吉兴汽车声学部件科技有限公司 | Blended hot melt membrane, production method and application thereof |
| CN101942143B (en) * | 2010-08-26 | 2012-05-30 | 无锡吉兴汽车声学部件科技有限公司 | Blended hot melt membrane, production method and application thereof |
| CN102558663A (en) * | 2012-01-09 | 2012-07-11 | 勉县三丰农业科技塑料制品有限公司 | Production method of anti-dropping plastic film |
| CN102660062A (en) * | 2012-03-28 | 2012-09-12 | 杭州华塑色母有限公司 | Anti-droplet high-transparency polyethylene film master batches |
| CN103571024B (en) * | 2012-07-19 | 2015-11-18 | 中国石油天然气股份有限公司 | The antifog drop films masterbatch of a kind of long-acting polyolefine |
| CN103571024A (en) * | 2012-07-19 | 2014-02-12 | 中国石油天然气股份有限公司 | Long-acting polyolefin anti-fogging film master batch |
| CN103571021A (en) * | 2012-07-19 | 2014-02-12 | 中国石油天然气股份有限公司 | Long-acting polyolefin anti-fogging film master batch |
| CN103571021B (en) * | 2012-07-19 | 2015-11-18 | 中国石油天然气股份有限公司 | The antifog drop films masterbatch of polyolefin long-acting |
| CN104163967A (en) * | 2013-05-20 | 2014-11-26 | 青岛供八方塑料有限公司 | Filling master-batch, polyethylene modified film with filling master-batch, and production method thereof |
| CN104494258A (en) * | 2014-11-10 | 2015-04-08 | 哈尔滨工业大学无锡新材料研究院 | Novel agricultural bidirectional stretching polyester film |
| US20180310490A1 (en) * | 2015-10-30 | 2018-11-01 | Dow Global Technologies Llc | Infrared absorbing, heat retaining film |
| US10561073B2 (en) * | 2015-10-30 | 2020-02-18 | Dow Global Technologies Llc | Infrared absorbing, heat retaining film |
| EP3368603B1 (en) * | 2015-10-30 | 2022-01-05 | Dow Global Technologies LLC | Infrared absorbing and heat retaining film |
| CN105968535A (en) * | 2016-07-05 | 2016-09-28 | 苏州科淼新材料有限公司 | PE agricultural film and preparation method thereof |
| CN110564036A (en) * | 2019-08-27 | 2019-12-13 | 湖南登科材料科技有限公司 | rare earth doped modified plastic composite master batch and preparation method thereof |
| CN111234366A (en) * | 2020-04-23 | 2020-06-05 | 福州大学 | Ultraviolet-resistant antifogging polyethylene greenhouse film and preparation method thereof |
| CN111234366B (en) * | 2020-04-23 | 2021-07-27 | 福州大学 | Ultraviolet-resistant antifogging polyethylene greenhouse film and preparation method thereof |
| NL2028036A (en) * | 2020-04-23 | 2021-10-27 | Univ Fu Zhou | Anti-uv anti-fog polyethylene trellis film and its preparation method |
| CN111961304A (en) * | 2020-08-21 | 2020-11-20 | 安徽江淮汽车集团股份有限公司 | Polymethyl methacrylate composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009557B (en) | 1990-09-12 |
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