CN1008750B - The production method of high-strength polyethylene netting twine - Google Patents
The production method of high-strength polyethylene netting twineInfo
- Publication number
- CN1008750B CN1008750B CN 88108961 CN88108961A CN1008750B CN 1008750 B CN1008750 B CN 1008750B CN 88108961 CN88108961 CN 88108961 CN 88108961 A CN88108961 A CN 88108961A CN 1008750 B CN1008750 B CN 1008750B
- Authority
- CN
- China
- Prior art keywords
- density polyethylene
- polyethylene
- netting twine
- high density
- hdpe
- 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.)
- Expired
Links
Abstract
A kind of production method of high-strength polyethylene netting twine, it is characterized in that with the high density polyethylene (HDPE) being that base-material adds thermoplastic elastomer (TPE), it is composite modified or add crosslinking agent ethene diethoxy silane, initator dicumyl peroxide, promoter two laurate butyl tin that nucleation-accelerant and low density polyethylene (LDPE) carry out physics, the nucleator benzoic acid carries out chemical crosslinking modified, and the intensity of raising netting twine, elasticity and transparency are used on the drift net that fishing is used to substitute the polyamide fibre netting twine, this method is easily implemented, the economic benefit height.
Description
The present invention relates to a kind of production method of high-strength polythene filament.
What the netting twine that uses in fishery both at home and abroad was main now is POLYAMIDE YARNS and polyethylene filament.Polyethylene filament is low because of intensity, and poor transparency can only be pooled capital and be made trawlnet, is not suitable for to do drift net.The drift net of China's use at present all is to use POLYAMIDE YARNS, and still, polyamide fibre collodion silk and its raw materials for production one caprolactam do not satisfy the demand of China far away, and is annual with a large amount of foreign exchanges purchases, thereby influenced the development of fishery.
Task of the present invention provides produces the production method that high-strength polyethylene melts twine, it is composite modified or chemical crosslinking modified that vinyon is carried out physics, make its technical performance reach the index of polyamide fibre netting twine,, use on drift net to substitute the polyamide fibre netting twine.
One of technical solution of the present invention is to be base-material with the high density polyethylene (HDPE), add thermoplastic elastomer (TPE) and nucleation-accelerant benzoic acid, low density polyethylene (LDPE) through batch mixing, extrude to reel off raw silk from cocoons and carry out physics and finalize the design through cooling, traction, hot water storgae heating, drawing-off, oven heat heating, drawing-off, oven heat again after composite modified, operations such as take-up are finished the production of high-strength polyethylene netting twine.Hundred parts of ratios of the weight of compound middle-high density polyethylene, thermoplastic elastomer (TPE) and low density polyethylene (LDPE) are:
High density polyethylene (HDPE) 85-90
Thermoplastic elastomer (TPE) 7-13
Low density polyethylene (LDPE) 2-3
The benzoic acid amount is 0.1～0.5% of last three kinds of component weight summations.
High density polyethylene (HDPE) is a line style crystallization high polymer, flexibility, and poor flexibility, and be translucent oyster white material.Add thermoplastic elastomer (TPE) and be equivalent to introduce the molecule that contains two kinds of different structures, wherein a kind of structure is glassy phase (a hard component), is the part of gaining in strength, and also just is equivalent to the physical crosslinking point, another structure is elasticity phase (a soft component), is the part that improves entropic elasticity.Thermoplastic elastomer (TPE) and high density polyethylene (HDPE) are compound, just make to be dispersed with the thermoplastic elastic phase in the continuous phase of high density polyethylene (HDPE), and the glassy phase of existing like this raising intensity has the flexible elasticity phase of raising again, thereby reach the purpose of vinyon modification.Nucleation-accelerant in the compound can make the degree of crystallinity of monofilament descend, and to improve the transparency of monofilament, low density polyethylene (LDPE) improves the mobile property of compound, makes the monofilament softness.Add thermoplastic elastomer (TPE) in the compound and can adopt rubber and plastic body s-B-S copolymer, methacrylic acid-butadiene-styrene copolymer body, hydrogenated styrene-butadiene-styrene copolymer, ethene-vinyl acetate copolymer or rubber elastomer second-third rubber, butadiene rubber, SBR styrene butadiene rubbers.
Two of technical solution of the present invention be a kind of extrude through batch mixing reel off raw silk from cocoons, cool off, the production method of high-strength polyethylene netting twine that operations such as traction, hot water storgae heating, drawing-off, oven heat heating, drawing-off, oven heat typing, take-up are finished, main inventive point is adding crosslinking agent vinyl triethoxysilane, initator dicumyl peroxide, a promoter dibutyl tin laurate in the high density polyethylene (HDPE).Make polyethylene monofilament become the crosslinked polyethylene monofilament, melt the tensile strength of twine with raising, and introduce the nucleation-accelerant benzoic acid, the degree of crystallinity of crosslinked polyethylene silk is descended, and increase its transparency.The parts by weight of each component are:
High density polyethylene (HDPE) 100
Vinyltriethoxysilane 0.2～0.3
Cumyl peroxide 0.01～0.05
Benzoic acid 0.1～0.5
High density polyethylene (HDPE) has inexpensive, characteristics such as easy-formation, monofilament relative elongation are suitable.But, lower than polyamide fibre collodion silk tensile strength, the low and plasticity height of elasticity, transparency is low.In order to improve these not enough performances of high density polyethylene (HDPE) silk.Adopt two step chemical reaction step:
One, adopts silane warm water crosslinking method, make polyethylene monofilament become the crosslinked polyethylene monofilament, to improve tensile strength and elasticity.Silane warm water crosslinking chemical reaction was divided into for two steps, and first one is graft reaction:
Second one is cross-linking reaction: handle in warm water and generation.
Two, the nucleation-accelerant benzoic acid is incorporated in the crosslinked polyethylene, the degree of crystallinity of monofilament is descended, and increase its transparency.
Two technical solutions of the present invention are finished under following process conditions.
1) extrusion temperature
240～270 ℃ of I, head temperatures
270～295 ℃ of II, measuring pump temperature
280～300 ℃ of III, changeover portion temperature
280～300 ℃ of IV, extruder metering section temperature
200～260 ℃ of V, compression section temperature
130～160 ℃ of VI, transportation section temperature
2) pressure
Extruder pressure 100～130kgf/Cm
2
Measuring pump pressure 100～150kgf/Cm
2
3) draw ratio 8-10
4) draft temperature
95～98 ℃ of boiler temperature
90～115 ℃ of oven heat temperature
Advantage of the present invention is:
1, composite algorithm of the present invention and cross-linking method are convenient to implement, and need not to change on the production line of original polyethylene monofilament.
2, the transparency of compound netting twine and crosslinked netting twine approaches the transparency of polyamide fibre netting twine.
3, the high-strength fishing twine cost of raw material of the present invention is low, the economic benefit height.
1.3 ten thousand yuan of one ton of polyamide fibre netting twine (φ 0.25mm) costs
0.6 ten thousand yuan of one ton of crosslinked netting twine (0.25mm) costs
0.5 ten thousand yuan of one ton of compound netting twine costs
4, the netting twine good springiness of this method, the tensile strength height, its key technical indexes reaches the standard of polyamide fibre netting twine, and its correction data is listed in the following table.
Name of product or the test of format diameter fracture single line
The powerful percentage elongation knot of standard class deviation brute force method remarks
（mm） （mm） （kgf） （%） （kgf）
Grade A standard+0.01 agriculture and animal husbandry
25～fishery
(Ministry of Agriculture, Animal Husbandry and Fisheries 0.30 3.40 2.4
33 newspapers
Declaration original text-0.02 batch original text
+0.01 20～ ″
Goods of inferior quality (the same) 0.30-0.02 40
Compound netting twine 0.29 3.55 20.4 2.6 " dry state
0.29 3.30 20.6 2.28 " hygrometric states
The Grade A standard
25～
(Ministry of Agriculture, Animal Husbandry and Fisheries 0.40 0.02 5.90 38 3.8 "
The declaration original text)
Goods of inferior quality (the same) 0.40 ± 0.03 5.30 20～3.40 "
40
Compound netting twine 0.40 6.30 20.1 4.51 dry state
Compound netting twine 0.40 6.09 20.1 4.20 hygrometric state
The Grade A standard
+0.01
(0.25 2.40 25-38 1.70 of Ministry of Agriculture, Animal Husbandry and Fisheries
-0.02
The declaration original text)
+0.02
Goods of inferior quality (the same) 0.25 2.10 20-40 1.50
-0.03
Crosslinked netting twine 0.27 3.21 23.2 2.28 dry state
" " 3.37 21.7 2.11 hygrometric states
Embodiment 1
The compound composition is respectively:
88 kilograms of high density polyethylene (HDPE)s
0 kilogram of s-B-S copolymer 1
2 kilograms of low density polyethylene (LDPE)s
0.15 kilogram in benzoic acid
247 ℃ of head temperatures, 292 ℃ of measuring pump temperature, excessively the section temperature is 290 ℃, 285 ℃ of extruder metering section temperature, 210 ℃ of compression temperatures, 155 ℃ of transportation section temperature, extruder pressure 120kgf/cm
2, measuring pump pressure 100kgf/cm
2, draw ratio 9.5,95 ℃ of boiler temperature, the every technical indicator of compound netting twine of producing under 90 ℃ of conditions of oven heat temperature is:
The test of name of product format diameter fracture fracture single line
Deviation percentage elongation remarks
Or the powerful knot of standard class (mm) brute force method
（mm） （kgf） （%） （kgf）
Farming, animal husbandry and fishery
Grade A standard 0.45 0.02 7.40 25～38 4.60
(standard laid down by the ministries or commissions of the Central Government) portion declaration original text
The goods of inferior quality standard
0.45 0.03 6.60 20～40 4.00 ″
(standard laid down by the ministries or commissions of the Central Government)
Compound netting twine 0.45 7.00 25 5.81 " dry state
" " 6.88 28 5.97 " immersion
24 hours
" 0.44 6.73 25 5.70 " dry state
" " 6.98 28 5.90 " immersion
24 hours
Embodiment 2
The weight of cross-linking agent each component is:
100 kilograms of high density polyethylene (HDPE)s
0.3 kilogram of vinyltriethoxysilane
0.01 kilogram of cumyl peroxide
0.1 kilogram of dibutyl tin laurate
0.2 kilogram in benzoic acid
243 ℃ of head temperatures, 270 ℃ of measuring pump temperature, 280 ℃ of changeover portion temperature, 285 ℃ of extruder metering section temperature, 230 ℃ of compression section temperature, 155 ℃ of transportation section temperature, extrusion pressure 110kgf/cm
2, measuring pump pressure 140kgf/cm
2, draw ratio 8.4,90 ℃ of boiler temperature, 95 ℃ of crosslinked polyethylene netting twines of producing down of oven heat temperature
Every technical indicator is:
Name of product or format diameter fracture fracture single line
The powerful percentage elongation knot of standard class deviation method for testing strength remarks
（mm） （mm） （kgf） （%） （kgf）
Grade A standard+0.01 25～farming, animal husbandry and fishery
0.25 2.40 1.70
38 the declaration original texts in (standard laid down by the ministries or commissions of the Central Government)-0.02
Goods of inferior quality standard+0.02 20～
2.10 1.50 ″
40
(standard laid down by the ministries or commissions of the Central Government) " 0.03
0.27 3.21 23.2 2.28 " dry states
" 3.37 21.7 2.11 " hygrometric state
Claims (4)
1, a kind of high-strength polyethylene netting twine, it is characterized in that with the high density polyethylene (HDPE) being base-material, add thermoplastic elastic body styrene-butadiene-styrene copolymer and nucleation-accelerant benzoic acid, that low density polyethylene (LDPE) carries out physics is composite modified, improve transparency, elasticity and the tensile strength of netting twine, the percentage by weight of compound middle-high density polyethylene, s-B-S copolymer and low density polyethylene (LDPE) is:
High density polyethylene (HDPE) 85～90
S-B-S copolymer 7～13
Low density polyethylene (LDPE) 2～3
The benzoic acid amount is 0.1～0.5% of last three kinds of component weight summations.
2, a kind of through batch mixing, extrude and reel off raw silk from cocoons, the production method of the described high-strength polyethylene netting twine of claim 1 that operations such as cooling, traction, hot water storgae heating, drawing-off, oven heat heating, drawing-off, oven heat typing, take-up are finished, it is characterized in that with the high density polyethylene (HDPE) being base-material, add thermoplastic elastic body styrene-butadiene-styrene copolymer and nucleation-accelerant benzoic acid, it is composite modified that low density polyethylene (LDPE) carries out physics, and the percentage by weight of compound middle-high density polyethylene, s-B-S copolymer and low density polyethylene (LDPE) is:
High density polyethylene (HDPE) 85～90
S-B-S copolymer 7～13
Low density polyethylene (LDPE) 2～3
The benzoic acid amount is 0.1～0.5% of last three kinds of component weight summations.
3, method as claimed in claim 2, it is characterized in that with the high density polyethylene (HDPE) being that base-material adds the crosslinking agent vinyltriethoxysilane, the initator cumyl peroxide, the promoter dibutyl tin laurate, make polyethylene monofilament become the crosslinked polyethylene monofilament, and introduce the nucleation-accelerant benzoic acid, the degree of crystallinity of crosslinked polyethylene silk is descended, and increase its transparency, the parts by weight of each component are:
High density polyethylene (HDPE) 100
Vinyltriethoxysilane 0.2～3.0
Cumyl peroxide 0.01～0.05
Dibutyl tin laurate 0.1～0.12
Benzoic acid 0.1～0.5
4, as claim 2 or 3 described methods, it is characterized in that:
1) extrusion temperature
240～270 ℃ of I, head temperatures
270～295 ℃ of II, measuring pump temperature
280～300 ℃ of III, excessive section temperature
280～300 ℃ of IV, extruder metering section temperature
200～260 ℃ of V, compression section temperature
130～160 ℃ of VI transportation section temperature
2) pressure
Extruder pressure 100～130kgf/cm
2
Measuring pump pressure 100～150kgf/cm
2
3) draw ratio 8～10
4) draft temperature
95～98 ℃ of boiler temperature
90～115 ℃ of oven heat temperature
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108961 CN1008750B (en) | 1988-12-23 | 1988-12-23 | The production method of high-strength polyethylene netting twine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108961 CN1008750B (en) | 1988-12-23 | 1988-12-23 | The production method of high-strength polyethylene netting twine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035328A CN1035328A (en) | 1989-09-06 |
| CN1008750B true CN1008750B (en) | 1990-07-11 |
Family
ID=4835271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88108961 Expired CN1008750B (en) | 1988-12-23 | 1988-12-23 | The production method of high-strength polyethylene netting twine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008750B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098761C (en) * | 1998-03-31 | 2003-01-15 | 四川联合大学 | Preparation of foamed insulating polyethylene material for coaxial cable |
| CN101352159B (en) * | 2007-07-26 | 2011-06-15 | 中国水产科学研究院东海水产研究所 | Abrasion-proof energy-saving polyethylene fishing net |
| CN101743941B (en) * | 2008-12-04 | 2012-06-13 | 宁波荣溢化纤科技有限公司 | Fishing line |
| CN101886298B (en) * | 2010-06-23 | 2013-05-08 | 东华大学 | Preparation method of ultra-high molecular weight polyethylene monofilaments |
| CN103276463B (en) * | 2013-05-13 | 2016-02-10 | 山东金冠网具有限公司 | A kind of technique of reeling off raw silk from cocoons of high strength twine |
| CN103757734A (en) * | 2013-12-11 | 2014-04-30 | 巢湖亚塑网具制造有限公司 | Aroma increase fish luring type fish net |
| CN104562267A (en) * | 2014-06-30 | 2015-04-29 | 巢湖市荷花渔网有限公司 | Fishing net thread |
| CN105386156A (en) * | 2015-11-13 | 2016-03-09 | 巢湖市强力渔业有限责任公司 | High-quality fishing net |
| CN105820420A (en) * | 2016-05-04 | 2016-08-03 | 巢湖市强力渔业有限责任公司 | Fish net prepared from surface-modified HDPE resin |
| CN107099870A (en) * | 2017-05-09 | 2017-08-29 | 巢湖市翔宇渔具有限公司 | A kind of special fishing net of marine fishing |
| CN107012582A (en) * | 2017-05-27 | 2017-08-04 | 巢湖市强力渔业有限责任公司 | A kind of processing method of high-strength polyethylene twist net slice |
| CN107034538A (en) * | 2017-05-27 | 2017-08-11 | 巢湖市鼎盛渔具有限公司 | A kind of processing method of fishing high-strength polythene filament |
| CN107059306A (en) * | 2017-05-27 | 2017-08-18 | 巢湖市鼎盛渔具有限公司 | A kind of processing method for improving fishing net tensile property |
| CN108796660A (en) * | 2018-06-28 | 2018-11-13 | 巢湖市荷花渔网有限公司 | A kind of preparation method of TPE fishing lines |
-
1988
- 1988-12-23 CN CN 88108961 patent/CN1008750B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035328A (en) | 1989-09-06 |
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