CN115703928A - Modified resin for portable seawater filter and preparation method thereof - Google Patents
Modified resin for portable seawater filter and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a modified resin for a portable seawater filter and a preparation method thereof, wherein the modified resin comprises the following raw materials in percentage by mass: 62-75% of resin; 3 to 5 percent of compatilizer; 20-30% of glass fiber; 1.0 to 2.0 percent of carbon black master batch; 0.2 to 0.5 percent of antioxidant; 0.3 to 0.6 percent of antibacterial agent, 0.2 to 0.5 percent of anti-UV agent and 0.2 to 0.5 percent of coupling agent. The invention alloys different resins, combines glass fiber and other functional additives to prepare the modified resin with high strength, high toughness, low density, low water absorption rate and excellent anti-UV and anti-fungal performance, and the excellent comprehensive performance is particularly suitable for manufacturing portable seawater filters and used in other areas with deficient fresh water resources, such as seawater areas and the like.
Description
Technical Field
The invention relates to the technical field of resin, in particular to modified resin for a portable seawater filter and a preparation method thereof.
Background
The portable seawater filter is a device for filtering seawater or other non-fresh water into fresh water, and is widely applied to the fields of outdoor exploration, marine navigation, military affairs and the like. In view of the method of use and the environment of the device, the materials for making the device must have the following characteristics: (1) high strength: the filter can bear the explosion pressure of more than 10MP under the condition that the wall thickness is 5 to 6 mm; (2) high toughness: the filter can bear stronger collision impact and is not easy to damage. (3) low density: the filter is portable and easy to carry. (4) low water absorption: the weight and performance of the filter do not change due to the large amount of water absorbed. (5) excellent weather resistance: the filter can be used for a long time in the environments of illumination, low temperature, humidity and the like. (6) resisting mildew: the filter can not generate a large amount of mould, and the health and the safety of a user are ensured. For glass fiber reinforced resins, high strength generally means high glass fiber content, and the higher the glass fiber content, the higher the density of the material. Therefore, it is difficult to simultaneously achieve high strength and low density for the glass fiber reinforced resin.
Disclosure of Invention
In order to solve the technical problems, the invention provides a modified resin for a portable seawater filter and a preparation method thereof, which combine the performances of different resin matrixes by utilizing an alloying idea, and prepare a modified resin material with high strength, high toughness, low density, low water absorption, UV resistance, mildew resistance and saline-alkali resistance through the reinforcing effect of glass fibers and the functionalization of other auxiliaries, thereby ensuring the use safety and reliability of the portable seawater filter and greatly reducing the carrying burden of a user.
The purpose of the invention is realized by the following technical scheme:
the modified resin for the portable seawater filter comprises the following components in percentage by mass:
resin: 62 to 75 percent;
a compatilizer: 3 to 5 percent;
glass fiber: 20 to 30 percent;
carbon black masterbatch: 1.0 to 2.0 percent;
antioxidant: 0.2 to 0.5 percent;
antibacterial agents: 0.3 to 0.6 percent;
anti-UV agent: 0.2 to 0.5 percent;
coupling agent: 0.2 to 0.5 percent.
Preferably, the resin is at least two of nylon 6, nylon 610, nylon 11, polyphenylene oxide (PPO) and High Impact Polystyrene (HIPS).
Preferably, the compatibilizer is at least one of ethylene-methyl acrylate-glycidyl methacrylate copolymer, POE grafted maleic anhydride, PS grafted maleic anhydride and SBS grafted maleic anhydride.
Preferably, the glass fiber is one or more of 988A, ECS303W-3-K, ECS306-3-K, ECS3014B and ECS301 HP-3-H.
Preferably, the carbon black master batch is one or more of 2772, EG3807 and PA3785.
Preferably, the antioxidant is one or more of 1010, 168, B561, B1171 and JC 1245.
Preferably, the antibacterial agent is one or more of RBV-600V, B401, B20 and AEM-5700.
Preferably, the anti-UV agent is one or more of 234, 326, 622, 1577, 783, 850.
Preferably, the coupling agent is one or more of KH550, KH560, KH570, 201.
A preparation method of modified resin for a portable seawater filter comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer, and mixing for 3 to 5min, wherein the motor power of the stirrer is 30 kw, and the rotating speed of a main shaft is 475 revolutions per minute;
step (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, melting, blending, extruding and granulating to obtain the modified resin material for the portable seawater filter; the length-diameter ratio of the double-screw extruder is 36 to 52, the screw rotating speed is 300 to 450 revolutions per minute, and the extrusion temperature is 240 to 280 ℃.
The invention has the advantages that:
(1) The invention utilizes the alloying technology of the high polymer material, fully considers the strength and the density of the glass fiber reinforced resin, and ensures that the density of the material is as low as possible on the premise of ensuring that the material has high strength.
(2) According to the invention, through the combination and synergistic use of different auxiliaries, the modified resin material has the functions of low water absorption, UV resistance, mould resistance and the like, so that the use requirement of the portable seawater filter is met.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Example 1:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass percent: nylon 6:43 percent; polyphenylene Oxide (PPO): 25 percent; SBS grafted maleic anhydride: 4 percent; glass fiber ECS3014B:25 percent; carbon black master batch PA3785:1.5 percent; antioxidant 1010:0.2 percent; antioxidant 168:0.2 percent; antibacterial agent RBV-600V:0.6 percent; anti-UV agent 234:0.3 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to be mixed for 3 min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 36, the rotating speed of a screw is 450 revolutions per minute, and the extruding temperature is 260-280 ℃.
Example 2:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass percent: polyphenylene Oxide (PPO): 30 percent; high Impact Polystyrene (HIPS): 10 percent; nylon 6:25 percent; SBS grafted maleic anhydride: 4 percent; glass fiber ECS306-3-K:28%; carbon black masterbatch EG3807:1.8 percent; antioxidant JC-1245:0.2 percent; the antibacterial agent B401:0.3 percent; UV-resistant agent 622:0.2 percent; coupling agent KH570:0.5 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to be mixed for 4min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 40, the rotating speed of a screw is 300 revolutions per minute, and the extruding temperature is 260-280 ℃.
Example 3:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass percent: nylon 610:45 percent; nylon 11:30 percent; POE grafted maleic anhydride: 3 percent; glass fiber ECS301HP-3-H:20 percent; carbon black master batch PA3785:1 percent; antioxidant B561:0.2 percent; antibacterial agents AEM-5700:0.4 percent; anti-UV agent 1577:0.2 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to mix for 3 min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 40, the rotating speed of a screw is 400 rpm, and the extruding temperature is 240-260 ℃.
Example 4:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass: nylon 6:20 percent; polyphenylene Oxide (PPO): 42%; SBS grafted maleic anhydride: 5 percent; glass fiber ECS3014B:15 percent; glass fiber ECS306-3-K:15 percent; carbon black masterbatch PA3785:1 percent; antioxidant 1010:0.3 percent; antioxidant 168:0.2 percent; antibacterial agent RBV-600V:0.6 percent; anti-UV agent 234:0.2 percent; anti-UV agent 326:0.3 percent; coupling agent KH550:0.4 percent.
The method comprises the following steps:
and (1) adding the fully dried resin and other auxiliaries into a stirrer to mix for 3 min at the rotating speed of 475 revolutions per minute. Adding the two glass fibers into a stirrer to mix for 4min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding the two glass fibers mixed in the step (1) by a side feeding method, melting, blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 36, the rotating speed of a screw is 300 revolutions per minute, and the extruding temperature is 260-280 ℃.
Comparative example 1:
as a comparison scheme of the above examples, the present comparative example discloses a modified resin for a portable seawater filter, which is composed of the following components by mass percent: nylon 11:65 percent; POE grafted maleic anhydride: 3 percent; glass fiber ECS301HP-3-H:30 percent; carbon black master batch PA3785:1.0 percent; antioxidant 1010:0.2 percent; antioxidant 168:0.1 percent; antibacterial agent RBV-600V:0.3 percent; anti-UV agent 326:0.2 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to mix for 4min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 52, the rotating speed of a screw is 400 rpm, and the extruding temperature is 230-250 ℃.
Comparative example 2:
as a comparison scheme of the above examples, the present comparative example discloses a modified resin for a portable seawater filter, which is composed of the following components by mass percent: nylon 6:64 percent; POE grafted maleic anhydride: 3 percent; glass fiber ECS301HP-3-H:30 percent; carbon black master batch PA3785:2.0 percent; antioxidant 1010:0.2 percent; antioxidant 168:0.1 percent; antibacterial agent RBV-600V:0.3 percent; anti-UV agent 234:0.2 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to mix for 3 min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 52, the rotating speed of a screw is 400 revolutions per minute, and the extruding temperature is 245-265 ℃.
Comparative example 3:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass percent: nylon 6:45.8 percent; polyphenylene Oxide (PPO): 30.2 percent; SBS grafted maleic anhydride: 4 percent; glass fiber ECS3014B:17 percent; carbon black master batch PA3785:1.5 percent; antioxidant 1010:0.2 percent; antioxidant 168:0.2 percent; antibacterial agent RBV-600V:0.6 percent; anti-UV agent 234:0.3 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to mix for 3 min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 36, the rotating speed of a screw is 300 revolutions per minute, and the extruding temperature is 240-280 ℃.
Comparative example 4:
as a most basic embodiment of the present invention, this example discloses a modified resin for a portable seawater filter, which comprises the following components by mass: nylon 6:32.2 percent; polyphenylene Oxide (PPO): 20.8 percent; SBS grafted maleic anhydride: 4 percent; glass fiber ECS3014B:40 percent; carbon black master batch PA3785:1.5 percent; antioxidant 1010:0.2 percent; antioxidant 168:0.2 percent; antibacterial agent RBV-600V:0.6 percent; anti-UV agent 234:0.3 percent; coupling agent KH550:0.2 percent.
The method comprises the following steps:
adding the fully dried resin and other auxiliaries into a stirrer to mix for 3 min at the rotating speed of 475 revolutions per minute;
and (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, carrying out melt blending, extruding and granulating, wherein the length-diameter ratio of the double-screw extruder is 36, the rotating speed of a screw is 300 revolutions per minute, and the extruding temperature is 240-280 ℃.
The products obtained in example 1~4 and comparative example 1~4 were tested according to the following test items and methods: the density was tested according to ISO 1183. The ash content was tested according to ISO 3451. The water absorption was measured according to ISO 62 under (23. + -. 1) ° C, (24. + -. 1) hr. The tensile strength was measured according to ISO 527 with a tensile rate of 50mm/min. The bending strength was tested according to ISO 178, the bending rate being 2mm/min. The impact strength of the notch of the simply supported beam is tested according to ISO 179, and the testing temperature is (23 +/-1) DEG C. Resistance to mold was tested according to QB/T2591. UV resistance was carried out according to ISO 4892-2 method A, water sprayed and light aged for 1000h. The low temperature resistance test method of the material comprises the following steps: the impact bars of the simply supported beam notch were placed in a thermostat at-30 ℃ for 4h and immediately tested according to ISO 179. The method of the free fall impact test of the filter comprises the following steps: the filter was allowed to freely fall from a 2m position to the cement floor, and the presence of the filter was observed for cracking. The low temperature resistance test method of the filter comprises the following steps: the filter was placed in a thermostat at-30 ℃ for 4h and then tested immediately according to the free fall impact test. The burst pressure of the filter was tested using a manual hydraulic press. The results are shown in Table 1:
TABLE 1 Performance test results for the materials and the corresponding injection-molded products
As can be seen from the above table, although there is a certain difference in performance, the 4 examples all have high strength, high toughness, low density, low water absorption, UV resistance and anti-mold properties, and the filters injection molded by the 4 examples can withstand the bursting pressure above 10MPa, and the weight is less than 1.3kg. However, the 3 materials prepared with a single resin matrix do not have an excellent combination of properties: comparative example 1, a single nylon 11 resin is selected, the tensile strength of the prepared material is too low, and the filter formed by injection molding can not reach the bursting pressure of 10 MPa; comparative example 2 selects a single nylon 6 resin, the water absorption of the prepared material is too high, and the size of the interface of the filter is greatly changed due to too much water absorption, so that the sealing performance of the filter is affected. In addition, the weight of the filter after water absorption is increased. The glass fiber content of the comparative example 3 is only 17%, the strength of the material is too low, the bursting pressure of the injection-molded filter is only 8.5MPa, and the low-temperature resistance is poor, so that the use requirement cannot be met. The content of the glass fiber of the comparative example 4 is up to 40%, the mechanical strength is greatly improved, but the density of the material is too high, and the prepared filter is heavy and is not convenient to carry for a long time. Therefore, the 4 embodiments are more suitable for preparing a portable seawater filter.
In summary, after reading the present disclosure, those skilled in the art should make various other modifications without creative efforts according to the technical solutions and concepts of the present disclosure, which are within the protection scope of the present disclosure.
Claims (10)
1. The modified resin for the portable seawater filter is characterized by comprising the following raw materials in percentage by mass:
resin: 62 to 75 percent;
a compatilizer: 3 to 5 percent;
glass fiber: 20 to 30 percent;
carbon black masterbatch: 1.0 to 2.0 percent;
antioxidant: 0.2 to 0.5 percent;
antibacterial agents: 0.3 to 0.6 percent;
anti-UV agent: 0.2 to 0.5 percent;
coupling agent: 0.2 to 0.5 percent.
2. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the resin is at least two of nylon 6, nylon 610, nylon 11, polyphenyl ether and high impact polystyrene.
3. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the compatilizer is at least one of ethylene-methyl acrylate-glycidyl methacrylate copolymer, POE grafted maleic anhydride, PS grafted maleic anhydride and SBS grafted maleic anhydride.
4. The modified resin for the portable seawater filter as claimed in claim 1, wherein: the glass fiber is one or more of 988A, ECS303W-3-K, ECS306-3-K, ECS3014B and ECS301 HP-3-H.
5. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the carbon black masterbatch is one or more of 2772, EG3807 and PA3785.
6. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the antioxidant is one or more of 1010, 168, B561, B1171 and JC 1245.
7. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the antibacterial agent is one or more of RBV-600V, B401, B20 and AEM-5700.
8. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the UV resistant agent is one or more of 234, 326, 622, 1577, 783 and 850.
9. The modified resin for a portable seawater filter as claimed in claim 1, wherein: the coupling agent is one or more of KH550, KH560, KH570 and 201.
10. A preparation method of modified resin for a portable seawater filter is characterized by comprising the following steps:
adding the fully dried resin and other auxiliaries into a stirrer and mixing for 3 to 5min;
step (2) adding the mixture obtained in the step (1) into a double-screw extruder, adding glass fibers by a side feeding method, and carrying out melt blending, extrusion and granulation to obtain a modified resin material for the portable seawater filter; the length-diameter ratio of the double-screw extruder is 36 to 52, the screw rotating speed is 300 to 450 rpm, and the extrusion temperature is 240 to 280 ℃.
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