CN101353455A - Plastic film preventing cultivated crabs from escaping and preparation thereof - Google Patents
Plastic film preventing cultivated crabs from escaping and preparation thereof Download PDFInfo
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- CN101353455A CN101353455A CNA2008101958756A CN200810195875A CN101353455A CN 101353455 A CN101353455 A CN 101353455A CN A2008101958756 A CNA2008101958756 A CN A2008101958756A CN 200810195875 A CN200810195875 A CN 200810195875A CN 101353455 A CN101353455 A CN 101353455A
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Abstract
The invention provides a plastic membrane for preventing cultured crabs escaping and a preparation method thereof. The plastic membrane comprises the components with the following weight portions: 70 to 90 portions of polyolefin base material, 2.5 to 3.5 portions of antioxidant 2, 6 di-butyl-p-cresol, 0.01 to 0.03 portions of isocyanuric three(3,3- di-butyl-4-hydroxy benzyl) ester, 5 to 10 portions of reinforcing agent nano-montmorilonite and 15 to 20 portions of the mixture of terpineol/rough dipentene with the weight ratio of 50:50. The polyolefin base material is preferably 55 to 65 weight portions of liner low density polyethylene and 15 to 25 weight portions of low density polyethylene. As the improvement of the invention, the raw material of the plastic membrane also comprises 10 to 25 weight portions of metallocene catalyst for liner low density polyethylene. With the invention, the plastic membrane has good aging inhibiting effect and better solves the problem that the plastic membrane is easy to age and deteriorate due to sun burning and watering outside for a long time.
Description
Technical field
The present invention relates to a kind of plastics film that prevents the cultivated crabs escape and preparation method thereof.
Background technology
For famous-particular-excellent aquaculture technology, crab runs away and has certain rule.Grasp rule and take the corresponding precautionary measures, only controlling effectively, crab escapes.Be to prevent from that crab from escaping to take height to build the method on the mud ridge eighties in last century, then generally mainly contains cement brick wall, calcium-plastic board fence, three kinds of forms of polythene net sheet fence the nineties.Above several forms are not that anti-to escape effect bad be exactly that anti-to escape the facility cost too high.And common plastic film is applied to crab cultivation, because intensity is lower, is easily cut brokenly by its finger tip when crab runs away climbing and is torn by biting of animal such as dog, cat, mouse.In addition, be used for the plastics film of agricultural, water industry etc., both increased production cost, wasting manpower and material resources, also caused environmental pollution because the very easily aged deterioration of being exposed to the sun and rain is outside for a long time changed two to three every year at least.
Summary of the invention
The invention provides a kind of plastics film that prevents that cultivated crabs from escaping, have excellent ageing resistance.
The described plastics film that prevents that cultivated crabs from escaping, raw material comprises 70～90 parts of polyolefin base materials by weight, oxidation inhibitor 2,2.5～3.5 parts of 6-ditertbutylparacresols and 0.01～0.03 part of ester of tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl), 5～10 parts of toughener nano imvites and Terpineol 350/rough kautschin are by 15～20 parts in 50: 50 weight ratio blended mixtures.
Described nano imvite average wafer thickness is less than 25nm, and smectite content is greater than 95%.Kautschin content is not less than 80% in the described rough kautschin.
Described polyolefin base material is preferably linear low density polyethylene 55-65 part and 15～25 parts of new LDPE (film grade)s by weight.As improvement of the present invention, the described raw material that prevents the plastics film that cultivated crabs is escaped also comprises 10～25 parts of metallocene catalysts that are used for linear low density polyethylene by weight.The described plastics film that prevents that cultivated crabs from escaping carries out film forming processing by known technology and gets final product.In blow molding process, blow-molding polyethylene membrane is generally selected the polyethylene raw material of melting index (hereinafter to be referred as MI) between 2～6g/10min scope for use, and in order better to fuse with described metallocene catalyst, the preferred molten index is 2～3g/10min.
Raw material can also comprise the auxiliary agent that this area is commonly used, as tinting material etc.
The present invention also provides the above-mentioned preparation method who prevents the plastics film that cultivated crabs is escaped, and adopts blow molding process, adopts single screw extruder to extrude, and extruding internal temperature is 170～190 ℃.
Idiographic flow is as follows:
Hopper material loading → material plasticizing is extruded → inflation traction → vane cooling → herringbone clamping plate → take off roll traction → corona treatment → film take-up.
Selecting for use of processing parameter numerical value is as follows:
Single screw extruder is extruded internal temperature: be controlled at 170～190 ℃;
Blow-up ratio: be controlled at 2.5～3.0;
Draw ratio; Be controlled at 4～6.
Above-mentioned processing parameter can be drawn according to prior art by those skilled in the art.
The applicant is constantly finding in the experiment: than common plastic film, adopt the prescription and the consumption of oxidation inhibitor of the present invention and toughener, the antiageing effect that prevents the plastics film that cultivated crabs is escaped is very good, and this prevents the plastics film that cultivated crabs is escaped because the problem of the very easily aged deterioration of being exposed to the sun and rain outside for a long time with regard to having solved well.
The applicant also finds, carry out film forming technology after adopting raw materials such as metallocene catalyst and polyethylene base-material to mix, can make the plastics film that prevents the cultivated crabs escape have good tensile, resistance to impact shock, good low-temperature heat sealability and resistance to crocking.Be mixed with the technology of plastics film than existing employing metallocene PE and new LDPE (film grade), not only raw materials cost reduces greatly, and on existing molding device (as blow moulding equipment), can directly use, simultaneously can also obtain better intensity, can under the situation of condition of equivalent thickness, improve intensity.Be used as when preventing that cultivated crabs from escaping facility, can prevent effectively that cultivated crabs its finger tip when runing away climbing from cutting brokenly and avoiding being torn by biting of animal such as dog, cat, mouse.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.Raw material is as follows, and described proportioning raw materials all by mass.
LLDPE: Jilin Petrochemical company of CNPC produces, LLDPE1802;
LDPE: Sinopec Yanshan Petrochemical company produces, LDPE2426H;
MLLDE: CNPC's Daqing petrochemical company is produced, M2710EP;
Nano imvite: clay chemistry company limited in Zhejiang produces, NANNOLIN:DK1;
Terpineol 350: Guangdong pine forest spices company limited;
Rough kautschin: the elegant chemical industry in Shanghai company limited, kautschin content is not less than 80%;
With Terpineol 350 and rough kautschin by 50/50 mass ratio mix Terpineol 350/rough kautschin mixture.
Embodiment one
(1) proportioning raw materials:
1. base-material: LLDPE 55
LDPE 15
2. catalyzer: MLLDE 10
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 2.5
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.01
4. toughener: nano imvite 10
Terpineol 350/rough kautschin mixture 15
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 170 ℃;
2. blow-up ratio: be controlled at 2.50;
3. draw ratio; Be controlled at 4.
Embodiment two
(1) formulation ratio:
1. base-material: LLDPE 57
LDPE 17
2. catalyzer: MLLDE 12
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 2.7
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.015
4. toughener: nano imvite 9
Terpineol 350/rough kautschin mixture 16
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 175 ℃;
2. blow-up ratio: be controlled at 2.7;
3. draw ratio; Be controlled at 4.5.
Embodiment three
(1) formulation ratio:
1. base-material: LLDPE 59
LDPE 19
2. catalyzer: MLLDE 14
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 2.7
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.02
4. toughener: nano imvite 8
Terpineol 350/rough kautschin mixture 17
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 180 ℃;
2. blow-up ratio: be controlled at 2.7;
3. draw ratio; Be controlled at 5.
Embodiment four
(1) formulation ratio:
1. base-material: LLDPE 60
LDPE 20
2. catalyzer: MLLDE 16
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 2.9
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.025
4. toughener: nano imvite 7
Terpineol 350/rough kautschin mixture 19
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 185 ℃;
2. blow-up ratio: be controlled at 2.9;
3. draw ratio; Be controlled at 5.5.
Embodiment five
(1) formulation ratio:
1. base-material: LLDPE 62
LDPE 22
2. catalyzer: MLLDE 18
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 3.1
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.027
4. toughener: nano imvite 6
Terpineol 350/rough kautschin mixture 19.5
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 186 ℃;
2. blow-up ratio: be controlled at 2.95;
3. draw ratio; Be controlled at 5.6.
Embodiment six
(1) formulation ratio:
1. base-material: LLDPE 64
LDPE 24
2. catalyzer: MLLDE 20
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 3.3
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.029
4. toughener: nano imvite 5.5
Terpineol 350/rough kautschin mixture 19.6
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 188 ℃;
2. blow-up ratio: be controlled at 2.9;
3. draw ratio; Be controlled at 5.8.
Embodiment seven
(1) formulation ratio:
1. base-material: LLDPE 65
LDPE 25
2. catalyzer: MLLDE 25
3. oxidation inhibitor: 2,6 ditertiary butyl p cresol 3.5
Tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl) ester 0.03
4. toughener: nano imvite 5
Terpineol 350/rough kautschin mixture 20
(2) processing parameter:
1. extrusion equipment is extruded internal temperature: be controlled at 190 ℃;
2. blow-up ratio: be controlled at 3.0;
3. draw ratio; Be controlled at 6.
Following table has been listed the economic target and the technical indicator of the product that obtains by previous embodiment.The result shows that embodiment 1-7 compares with reference substance, and the tensile strength and the elongation of products obtained therefrom increase greatly, and current consumption reduces greatly, and product cost also obviously reduces.
1: plastics film is placed outdoor,, observe it and whether rupture, time on-test: on June 1st, 2007, test site: river, Gaochun County, Nanjing, Jiangsu Province Zhang Cun through weather aging (wind, Exposure to Sunlight, drench with rain) test;
2: be commercially available agricultural greenhouse plastics film, its major economic indicators are released according to prior art, and the key technical indexes draws through experiment.
Claims (8)
1. plastics film that prevents that cultivated crabs from escaping, it is characterized in that raw material comprises 70～90 parts of polyolefin base materials by weight, oxidation inhibitor 2,2.5～3.5 parts of 6-ditertbutylparacresols and 0.01～0.03 part of ester of tricarbimide three (3, the 3-di-tert-butyl-4-hydroxyl benzyl), 5～10 parts of toughener nano imvites and Terpineol 350/rough kautschin are by 15～20 parts in 50: 50 weight ratio blended mixtures.
2. the plastics film that prevents that cultivated crabs from escaping as claimed in claim 1 is characterized in that described nano imvite average wafer thickness less than 25nm, and smectite content is greater than 95%.
3. the plastics film that prevents that cultivated crabs from escaping as claimed in claim 1 is characterized in that kautschin content is not less than 80% in the described rough kautschin.
4. as the described plastics film that prevents that cultivated crabs from escaping of claim 1-3, it is characterized in that described polyolefin base material is 15～25 parts of by weight linear low density polyethylene 55-65 part and new LDPE (film grade)s.
5. the plastics film that prevents that cultivated crabs from escaping as claimed in claim 4 is characterized in that raw material also comprises 10～25 parts of metallocene catalysts that are used for linear low density polyethylene by weight.
6. the plastics film that prevents that cultivated crabs from escaping as claimed in claim 5 is characterized in that described polyolefin base material melting index is 2～3g/10min.
7. as each described preparation method who prevents the plastics film that cultivated crabs is escaped of claim 1-6, it is characterized in that adopting blow molding process.
8. the preparation method who prevents the plastics film that cultivated crabs is escaped as claimed in claim 7 is characterized in that adopting single screw extruder to extrude, and extruding internal temperature is 170～190 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101958756A CN101353455A (en) | 2008-09-18 | 2008-09-18 | Plastic film preventing cultivated crabs from escaping and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101958756A CN101353455A (en) | 2008-09-18 | 2008-09-18 | Plastic film preventing cultivated crabs from escaping and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN101353455A true CN101353455A (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101958756A Pending CN101353455A (en) | 2008-09-18 | 2008-09-18 | Plastic film preventing cultivated crabs from escaping and preparation thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140218A (en) * | 2010-01-28 | 2011-08-03 | 中国科学院化学研究所 | Ultra-oleophobic underwater self-cleaning polymer composite film with biomimic structure and manufacturing method thereof |
| CN103044743A (en) * | 2012-11-25 | 2013-04-17 | 安徽六方重联机械股份有限公司 | Package-purposed plastic-based film containing itaconate |
| CN105602070A (en) * | 2016-03-17 | 2016-05-25 | 江南大学 | Reinforced polyethylene (PE) film and preparation method thereof |
| CN105968538A (en) * | 2016-07-14 | 2016-09-28 | 广东汇发塑业科技有限公司 | Special cultivation film and preparation method thereof |
| CN106857361A (en) * | 2016-12-26 | 2017-06-20 | 苏州倍儿壮养殖装备科技有限公司 | A kind of crab pond fence plastic cloth structure and its forming method |
-
2008
- 2008-09-18 CN CNA2008101958756A patent/CN101353455A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140218A (en) * | 2010-01-28 | 2011-08-03 | 中国科学院化学研究所 | Ultra-oleophobic underwater self-cleaning polymer composite film with biomimic structure and manufacturing method thereof |
| CN102140218B (en) * | 2010-01-28 | 2013-07-24 | 中国科学院化学研究所 | Ultra-oleophobic underwater self-cleaning polymer composite film with biomimic structure and manufacturing method thereof |
| CN103044743A (en) * | 2012-11-25 | 2013-04-17 | 安徽六方重联机械股份有限公司 | Package-purposed plastic-based film containing itaconate |
| CN103044743B (en) * | 2012-11-25 | 2016-05-11 | 合肥宏杰新材料科技有限公司 | A kind of packaging plastic substrate film that contains itaconate |
| CN105602070A (en) * | 2016-03-17 | 2016-05-25 | 江南大学 | Reinforced polyethylene (PE) film and preparation method thereof |
| CN105602070B (en) * | 2016-03-17 | 2018-04-24 | 江南大学 | One kind enhancing polyethylene film and preparation method thereof |
| CN105968538A (en) * | 2016-07-14 | 2016-09-28 | 广东汇发塑业科技有限公司 | Special cultivation film and preparation method thereof |
| CN106857361A (en) * | 2016-12-26 | 2017-06-20 | 苏州倍儿壮养殖装备科技有限公司 | A kind of crab pond fence plastic cloth structure and its forming method |
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