CN115852522A - Formula of long-acting insect-repellent net and manufacturing method thereof - Google Patents
Formula of long-acting insect-repellent net and manufacturing method thereof Download PDFInfo
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- CN115852522A CN115852522A CN202211489788.8A CN202211489788A CN115852522A CN 115852522 A CN115852522 A CN 115852522A CN 202211489788 A CN202211489788 A CN 202211489788A CN 115852522 A CN115852522 A CN 115852522A
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- 239000000077 insect repellent Substances 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 53
- 239000004611 light stabiliser Substances 0.000 claims abstract description 44
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 32
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 32
- CXEGAUYXQAKHKJ-NSBHKLITSA-N emamectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](NC)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 CXEGAUYXQAKHKJ-NSBHKLITSA-N 0.000 claims abstract description 23
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 18
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 18
- FIPWRIJSWJWJAI-UHFFFAOYSA-N Butyl carbitol 6-propylpiperonyl ether Chemical compound C1=C(CCC)C(COCCOCCOCCCC)=CC2=C1OCO2 FIPWRIJSWJWJAI-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229960005235 piperonyl butoxide Drugs 0.000 claims abstract description 17
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 13
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 claims abstract description 13
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 66
- 238000003756 stirring Methods 0.000 claims description 48
- 238000002156 mixing Methods 0.000 claims description 41
- 238000002360 preparation method Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 16
- 238000009941 weaving Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009472 formulation Methods 0.000 claims 1
- 230000005923 long-lasting effect Effects 0.000 claims 1
- 241000254127 Bemisia tabaci Species 0.000 abstract description 14
- 241001466030 Psylloidea Species 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005507 spraying Methods 0.000 abstract description 9
- 239000000575 pesticide Substances 0.000 abstract description 7
- 230000001550 time effect Effects 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 5
- 235000013399 edible fruits Nutrition 0.000 abstract description 4
- 241000238631 Hexapoda Species 0.000 description 21
- 241000258937 Hemiptera Species 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 241000607479 Yersinia pestis Species 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000002917 insecticide Substances 0.000 description 4
- 230000000607 poisoning effect Effects 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 241001486393 Cacopsylla chinensis Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000002147 killing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001782 photodegradation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
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- 238000004904 shortening Methods 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The invention provides a formula of a long-acting insect repellent net and a manufacturing method thereof. The formula comprises 19-20 parts of component c, 0.1-0.3 part of extremely strong dispersant and 78-82 parts of HDPE; the component c comprises 45-46 parts of component a, 45-46 parts of component b and 8-10 parts of piperonyl butoxide mixture; the component a comprises 8-10 parts of emamectin benzoate, 5-8 parts of light stabilizer and 82-88 parts of LLDPE; the component b comprises 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE. The invention can be directly wrapped outside plants, fruits and the like when in use, is environment-friendly, has long pest-expelling prevention time effect, relatively low cost and good pest-expelling prevention effect, has good pest-expelling prevention effect on psyllids and bemisia tabaci, is not like traditional pesticide spraying, has fast emission, short time effect, frequent spraying, high cost and is not environment-friendly.
Description
Technical Field
The invention relates to the field of insect-proof textiles, in particular to a formula of a long-acting insect-proof and repellent net and a manufacturing method thereof.
Background
In recent years, broad-spectrum pesticides are mainly sprayed in agricultural production to prevent and control pests. However, the mode of spraying broad-spectrum pesticide has the following defects: firstly, the ecological environment is seriously affected; secondly, the time efficiency is short, the spraying frequency is high, and the cost is high; thirdly, the pests slowly generate drug resistance to the broad-spectrum medicaments, and the effect is poor; finally, the pesticide has the advantages of having a certain killing effect on most pests, but lacking pertinence, having poor effect on pests such as psylla chinensis and bemisia tabaci, and the psylla chinensis and the bemisia tabaci are main pests in agricultural production and are easy to cause the wilt and death of the infectious yellow dragon disease of plants and fruit sterilization. It is necessary to develop a new product to solve the above problems.
Disclosure of Invention
The invention provides a long-acting insect-repellent net formula and a manufacturing method thereof, and solves the problems of large influence on ecological environment, short time effect, poor effect and poor pertinence in the existing method of spraying broad-spectrum pesticide for pest control.
The technical scheme of the invention is realized as follows:
the invention firstly provides a long-acting insect-repellent net formula which comprises, by mass, 19-20 parts of a component c, 0.1-0.3 part of an extremely strong dispersing agent and 78-82 parts of HDPE; wherein the component c comprises 45-46 parts of component a, 45-46 parts of component b and 8-10 parts of a piperonyl butoxide mixture; wherein the component a comprises 8-10 parts of emamectin benzoate, 5-8 parts of light stabilizer and 82-88 parts of LLDPE; wherein the component b comprises 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE.
Further, the light stabilizer is UV770.
The invention provides a manufacturing method of a long-acting insect repellent net formula, which comprises the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 82-88 parts of LLDPE and 8-10 parts of emamectin benzoate by mass part;
1.2, adding 5-8 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 135-145 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 150-160 ℃;
step three, preparation of component mixture of step c
3.1, mixing and stirring 45-46 parts of the component a master batch, 45-46 parts of the component b master batch and 8-10 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 19-20 parts by mass of the c component mixed master batch, 0.1-0.3 part by mass of extremely strong dispersant and 78-82 parts by mass of HDPE;
and (3) preparing the mixture into silk threads at the temperature of 180-190 ℃ by a wire drawing machine, and weaving the silk threads into mesh cloth by a weaving machine.
Further, in the first step, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 25-35 minutes, the mixture is placed for 25-30 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
Further, after the component master batch a and the component master batch b are prepared, drying the components by a dryer for later use, wherein the drying temperature is 50-55 ℃.
Further, in the second step, the third step and the fourth step, a stirrer is adopted for mixing and stirring.
The invention has the beneficial effects that:
1. the long-acting insect-repellent net can be directly wrapped outside plants, fruits and the like when in use, is environment-friendly, long in insect-repellent time-effect prevention, relatively low in cost and good in insect-repellent effect, and the textile prepared by the formula has the best insect-repellent effect on psyllids and bemisia tabaci, is not like the traditional broad-spectrum pesticide spraying, is fast in emission, short in time-effect, high in cost and not environment-friendly, and needs frequent spraying.
2. According to the invention, the light stabilizer is respectively added into the component a and the component b to respectively prepare the component a master batch and the component b master batch, so that the problems that a large amount of light stabilizer is directly added at one time in the prior art and cannot be fully utilized to cause material waste are solved, the light stabilizer can weaken the photodegradation of plastics, the weather resistance of plastic products is improved, and the service life of the plastic products is prolonged;
3. the use of an auxiliary agent such as aluminosilicate, which is required to be added for increasing the amount of UV770 to be fused, is not required, and the cost can be further reduced.
4. After the component master batch a and the component master batch b are prepared, the drying machine is used for drying, so that the problem that the wire is easy to break in the wire drawing process due to insufficient drying can be solved, and the product quality and the yield are improved.
5. after the component a master batch, the component b master batch and the piperonyl butoxide are mixed and stirred, the mixture is sealed and reacted in a sealed container, thereby preventing the piperonyl butoxide from evaporating, improving the reaction effect and shortening the reaction time.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention firstly provides a long-acting insect-repellent net formula which comprises, by mass, 19-20 parts of a component c, 0.1-0.3 part of a super strong dispersant and 78-82 parts of HDPE; wherein the component c comprises 45-46 parts of component a, 45-46 parts of component b and 8-10 parts of a piperonyl butoxide mixture; wherein the component a comprises 8-10 parts of emamectin benzoate, 5-8 parts of light stabilizer and 82-88 parts of LLDPE; wherein the component b comprises 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE.
Further, the light stabilizer is UV770.
The invention provides a manufacturing method of a long-acting insect repellent net formula, which comprises the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 82-88 parts of LLDPE and 8-10 parts of emamectin benzoate in parts by mass;
1.2, adding 5-8 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 135-145 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 150-160 ℃;
step three, preparation of mixture of component c
3.1, mixing and stirring 45-46 parts of the component a master batch, 45-46 parts of the component b master batch and 8-10 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 19-20 parts by mass of the c component mixed master batch, 0.1-0.3 part by mass of extremely strong dispersant and 78-82 parts by mass of HDPE;
and (3) preparing the mixture into silk threads at the temperature of 180-190 ℃ by a wire drawing machine, and weaving the silk threads into mesh cloth by a weaving machine.
Further, in the first step, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 25-35 minutes, the mixture is placed for 25-30 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
Further, after the master batch of the component a and the master batch of the component b are prepared, the mixture is dried by a dryer for standby application, and the drying temperature is 50-55 ℃.
Further, in the second step, the third step and the fourth step, a stirrer is adopted for mixing and stirring.
The long-acting insect-repellent net can be directly wrapped outside plants, fruits and the like when in use, is environment-friendly, long in insect-repellent time-effect prevention, relatively low in cost and good in insect-repellent effect, and the textile prepared by the formula has the best insect-repellent effect on psyllids and bemisia tabaci, is not like the traditional broad-spectrum pesticide spraying, is fast in emission, short in time-effect, high in cost and not environment-friendly, and needs frequent spraying. According to the invention, the light stabilizer is respectively added into the component a and the component b to respectively prepare the component a master batch and the component b master batch, so that the problems that a large amount of light stabilizer is directly added at one time in the prior art and cannot be fully utilized to cause material waste are solved, the light stabilizer can weaken the photodegradation of plastics, the weather resistance of plastic products is improved, and the service life of the plastic products is prolonged; the use of an auxiliary agent such as aluminosilicate, which is required to be added for increasing the amount of UV770 to be fused, is not required, and the cost can be further reduced. After the component master batch a and the component master batch b are prepared, the drying machine is used for drying, so that the problem that the wire is easy to break in the wire drawing process due to insufficient drying can be solved, and the product quality and the yield are improved. after the component a master batch, the component b master batch and the piperonyl butoxide are mixed and stirred, the mixture is sealed and reacted in a sealed container, thereby preventing the piperonyl butoxide from evaporating, improving the reaction effect and shortening the reaction time.
Example 1
The embodiment firstly provides a long-acting insect-repellent net formula which comprises, by mass, 19 parts of a component c, 0.1 part of a very strong dispersant and 78 parts of HDPE; wherein the component c comprises 45 parts of component a, 45 parts of component b and 8 parts of piperonyl butoxide mixture; wherein the component a comprises 8 parts of emamectin benzoate, 5 parts of light stabilizer and 82 parts of LLDPE; wherein the component b comprises 5 parts of antioxidant, 5 parts of light stabilizer and 82 parts of LLDPE.
Further, the light stabilizer is UV770.
The embodiment secondly discloses a manufacturing method of the long-acting insect-repellent net formula, which comprises the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 82 parts of LLDPE and 8 parts of emamectin benzoate in parts by mass;
1.2, adding 5 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 135 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 5 parts of antioxidant, 5 parts of light stabilizer and 82 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 150 ℃;
step three, preparation of component mixture of step c
3.1, mixing and stirring 45 parts of the component a master batch, 45 parts of the component b master batch and 8 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 19 parts of the c component mixed master batch, 0.1 part of extremely strong dispersant and 78 parts of HDPE by mass;
and (3) preparing the mixture into silk threads at the temperature of 180 ℃ through a wire drawing machine, and weaving the silk threads into mesh cloth through a weaving machine.
Further, in the first step, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 25 minutes, and then are placed for 25 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
Further, after the component master batch a and the component master batch b are prepared, drying the components by a dryer for later use, wherein the drying temperature is 50 ℃.
Further, in the second step, the third step and the fourth step, a stirrer is adopted for mixing and stirring.
Example 2
The embodiment firstly provides a long-acting insect-repellent net formula which comprises 20 parts of a component c, 0.2 part of a strong dispersing agent and 80 parts of HDPE (high-density polyethylene) in parts by mass; wherein the component c comprises 45 parts of component a, 46 parts of component b and 9 parts of piperonyl butoxide mixture; wherein the component a comprises 9 parts of emamectin benzoate, 6 parts of light stabilizer and 85 parts of LLDPE; wherein the component b comprises 8 parts of antioxidant, 6 parts of light stabilizer and 85 parts of LLDPE.
Further, the light stabilizer is UV770.
The invention provides a manufacturing method of a long-acting insect repellent net formula, which comprises the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 85 parts of LLDPE and 9 parts of emamectin benzoate by mass parts;
1.2, adding 6 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 140 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 8 parts of antioxidant, 6 parts of light stabilizer and 85 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 155 ℃;
step three, preparation of mixture of component c
3.1, mixing and stirring 45 parts of the component a master batch, 46 parts of the component b master batch and 9 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 20 parts of the c component mixed master batch, 0.2 part of the extremely strong dispersing agent and 80 parts of HDPE (high-density polyethylene) in parts by mass;
and (3) making the mixture into silk threads at 185 ℃ by a wire drawing machine, and weaving the silk threads into mesh cloth by a weaving machine.
Further, in the first step, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 30 minutes, the mixture is placed for 28 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
Further, after the component a master batch and the component b master batch are prepared, the mixture is dried by a dryer for standby, and the drying temperature is 52 ℃.
Further, in the second step, the third step and the fourth step, a stirrer is adopted for mixing and stirring.
Example 3
The invention firstly provides a long-acting insect-repellent net formula which comprises 20 parts of component c, 0.3 part of extremely strong dispersant and 82 parts of HDPE (high-density polyethylene) in parts by mass; wherein the component c comprises 46 parts of component a, 46 parts of component b and 10 parts of piperonyl butoxide mixture; wherein the component a comprises 10 parts of emamectin benzoate, 8 parts of light stabilizer and 88 parts of LLDPE; wherein the component b comprises 10 parts of antioxidant, 8 parts of light stabilizer and 90 parts of LLDPE.
Further, the light stabilizer is UV770.
The invention also provides a manufacturing method of the long-acting insect repellent net formula, which comprises the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 88 parts of LLDPE and 10 parts of emamectin benzoate in parts by mass;
1.2, adding 8 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 145 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 10 parts of antioxidant, 8 parts of light stabilizer and 90 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 160 ℃;
step three, preparation of component mixture of step c
3.1, mixing and stirring 46 parts of the component a master batch, 46 parts of the component b master batch and 10 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 20 parts of the c component mixed master batch, 0.3 part of extremely strong dispersant and 82 parts of HDPE by mass;
and (3) preparing the mixture into silk threads at the temperature of 190 ℃ by a wire drawing machine, and weaving the silk threads into mesh cloth by a weaving machine.
Further, in the first step, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 35 minutes, the mixture is placed for 30 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
Further, after the component master batch a and the component master batch b are prepared, drying the components by a dryer for later use, wherein the drying temperature is 55 ℃.
Further, in the second step, the third step and the fourth step, a stirrer is adopted for mixing and stirring.
Experiment one
1.1 name of experiment
Experiment for long-acting emamectin benzoate content in insect repellent net to change along with use time
1.2 Experimental materials
The long-acting insect repellent net and the liquid chromatograph produced by the long-acting insect repellent net formula and the manufacturing method in the embodiment 2
1.3 Experimental methods
The long-acting insect-repellent net produced by the formula and the manufacturing method of the long-acting insect-repellent net in the embodiment 2 is adopted, 1 m × 1 m long-acting insect-repellent net is cut and laid on an outdoor frame, a small block is cut from the long-acting insect-repellent net respectively on the 1 st day, the 30 th day, the 50 th day, the 80 th day, the 100 th day and the 120 th day, the weight of 1 g is weighed, and the content of emamectin benzoate is detected by a liquid chromatograph, wherein the specific content table is as follows:
| content of emamectin benzoate (g/kg) | |
| Day 1 | 9.44 |
| Day 30 | 9.23 |
| Day 50 | 8.05 |
| Day 80 | 7.86 |
| Day 100 | 7.65 |
| Day 120 | 7.02 |
And (4) conclusion: the long-acting insect-repellent net produced by adopting the formula and the manufacturing method of the long-acting insect-repellent net has slow medicament loss and good durability, and the normal emamectin benzoate content is more than 4g/kg, so that the long-acting insect-repellent net has a good killing effect.
Experiment two
1.1 name of experiment
Indoor poisoning effect test of long-acting insect-repellent net on psyllids and bemisia tabaci
1.2 test materials
The long-acting insect-repellent net produced by the formula and the manufacturing method of the long-acting insect-repellent net in example 2 and the common polyethylene net without any insecticide have 200 meshes (psyllids and bemisia tabaci cannot fly out of the meshes).
1.3 test targets
Psyllid artropoda, developmental stage: adults 1-3 days old;
bemisia tabaci (genodus), developmental stage: adults 1-3 days old.
1.4 test methods
An experimental group adopts the long-acting insect-repellent net formula and the long-acting insect-repellent net produced by the production method in the embodiment 2 to produce two insect cages with the sizes of 40cm multiplied by 30cm multiplied by 40cm, namely the insect cage 1 and the insect cage 2 respectively; the control group adopts a common polyethylene net without any insecticide to manufacture two insect cages with the size of 40cm multiplied by 30cm multiplied by 40cm, namely the insect cage 3 and the insect cage 4 respectively, 100 whiteflies are arranged in the test tube and released in the center of the insect cage 1, then the zipper is pulled, 100 whiteflies are arranged in the test tube and released in the center of the insect cage 2, then the zipper is pulled, and similarly 100 whiteflies and 100 whiteflies are released in the centers of the insect cage 3 and the insect cage 4 of the control group respectively. No water and food were provided within 0-6 hours after release, and the mortality of psyllids and bemisia tabaci in the experimental and control groups was counted at 1 hour, 2 hours, 3 hours, 4 hours, 5 hours and 6 hours, with specific data as follows:
and (4) conclusion: the long-acting insect-repellent net produced by adopting the formula and the manufacturing method of the long-acting insect-repellent net has a very good poisoning effect on psyllids and bemisia tabaci.
Experiment three
1.1 name of experiment
Long-acting insect-repellent net for stopping and poisoning psylla chinensis and bemisia tabaci
1.2 test materials
The long-acting insect-repellent net produced by the formula and the manufacturing method of the long-acting insect-repellent net in example 2 and the common polyethylene net without any insecticide have 78 meshes (the psyllids and the bemisia tabaci can fly out of the meshes).
1.3 test targets
Psyllid Arthropoda, developmental stage: adults 1-3 days old;
bemisia tabaci (genodus), developmental stage: adults 1-3 days old.
1.4 test methods
An experimental group adopts the long-acting insect-repellent net formula and the long-acting insect-repellent net produced by the production method in the embodiment 2 to produce two insect cages with the sizes of 40cm multiplied by 30cm multiplied by 40cm, namely the insect cage 1 and the insect cage 2 respectively; the control group adopts a common polyethylene net without any insecticide to manufacture two insect cages with the size of 40cm multiplied by 30cm multiplied by 40cm, namely the insect cage 3 and the insect cage 4 respectively, 100 whiteflies are arranged in the test tube and released in the center of the insect cage 1, then the zipper is pulled, 100 whiteflies are arranged in the test tube and released in the center of the insect cage 2, then the zipper is pulled, and similarly 100 whiteflies and 100 whiteflies are released in the centers of the insect cage 3 and the insect cage 4 of the control group respectively. Within 0-6 hours after release, no water and food were provided, and escape and death of psyllids and bemisia tabaci in the experimental and control groups were counted at 1 hour, 2 hours, 3 hours, 4 hours, 5 hours and 6 hours, with specific data as follows:
and (4) conclusion: the long-acting insect-repellent net produced by the formula and the manufacturing method of the long-acting insect-repellent net also has good blocking and poisoning effects on insects smaller than meshes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (6)
1. A long-acting insect-repellent net formula which is characterized in that,
the high-density polyethylene (HDPE) comprises, by mass, 19-20 parts of a component c, 0.1-0.3 part of a very strong dispersant and 78-82 parts of HDPE;
wherein the component c comprises 45-46 parts of component a, 45-46 parts of component b and 8-10 parts of a piperonyl butoxide mixture;
wherein the component a comprises 8-10 parts of emamectin benzoate, 5-8 parts of light stabilizer and 82-88 parts of LLDPE;
wherein the component b comprises 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE.
2. The long acting insect repellent net formulation according to claim 1, wherein the light stabilizer is UV770.
3. The manufacturing method of the long-acting insect-repellent net is characterized by comprising the following steps:
step one, preparation of a component master batch
1.1, mixing and stirring 82-88 parts of LLDPE and 8-10 parts of emamectin benzoate by mass part;
1.2, adding 5-8 parts of light stabilizer, mixing and stirring;
1.3, putting the mixture into an extruder, and preparing a component a master batch at the temperature of 135-145 ℃;
step two, b component master batch preparation
2.1, mixing and stirring 5-10 parts of antioxidant, 5-8 parts of light stabilizer and 82-90 parts of LLDPE in parts by mass;
2.2, putting the mixture into an extruder, and preparing the mixture into component b master batch at the temperature of 150-160 ℃;
step three, preparation of component mixture of step c
3.1, mixing and stirring 45-46 parts of the component a master batch, 45-46 parts of the component b master batch and 8-10 parts of piperonyl butoxide by mass;
3.2, placing the mixture in a sealed container for sealing reaction for later use;
step four, preparation of finished products
4.1, mixing and stirring 19-20 parts by mass of the c component mixed master batch, 0.1-0.3 part by mass of extremely strong dispersant and 78-82 parts by mass of HDPE;
and (3) preparing the mixture into silk threads at the temperature of 180-190 ℃ by a wire drawing machine, and weaving the silk threads into screen cloth by a weaving machine.
4. A method of making a long acting insect repellent net according to claim 3, wherein: and in the step I, the LLDPE and the emamectin benzoate are mixed and stirred by a stirrer for 25-35 minutes, the mixture is placed for 25-30 minutes after stirring, and then the light stabilizer is added into the stirrer for mixing and stirring.
5. A method of making a long acting insect repellent net according to claim 3, wherein: and (3) after the component master batch a and the component master batch b are prepared, drying the components by a dryer for later use, wherein the drying temperature is 50-55 ℃.
6. The method of making a long-lasting insect repellent net according to claim 1, wherein: and step two, step three and step four adopt a stirrer to mix and stir.
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| CN202211489788.8A CN115852522A (en) | 2022-11-25 | 2022-11-25 | Formula of long-acting insect-repellent net and manufacturing method thereof |
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