CN117683291A - LFT-G antibacterial PP composite material and preparation method thereof - Google Patents
LFT-G antibacterial PP composite material and preparation method thereof Download PDFInfo
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- CN117683291A CN117683291A CN202211068232.1A CN202211068232A CN117683291A CN 117683291 A CN117683291 A CN 117683291A CN 202211068232 A CN202211068232 A CN 202211068232A CN 117683291 A CN117683291 A CN 117683291A
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- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000012745 toughening agent Substances 0.000 claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 claims description 36
- 230000007704 transition Effects 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 229920009204 Methacrylate-butadiene-styrene Polymers 0.000 claims description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007791 dehumidification Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004609 Impact Modifier Substances 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 claims description 3
- PCVVBHUFWPHCAL-UHFFFAOYSA-N butane-1,4-diol;terephthalic acid Chemical compound OCCCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 PCVVBHUFWPHCAL-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000011258 core-shell material Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000845 anti-microbial effect Effects 0.000 claims 5
- 239000004599 antimicrobial Substances 0.000 claims 2
- 238000002791 soaking Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 2
- 238000005253 cladding Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 229920001155 polypropylene Polymers 0.000 description 25
- -1 Polypropylene Polymers 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an LFT-G antibacterial PP composite material and a preparation method thereof, wherein the composite material comprises the following components in parts by weight: 50 to 70 parts of PP resin, 3 to 5 parts of toughening agent, 5 to 10 parts of compatilizer, 0.3 to 0.5 part of lubricant, 5 to 15 parts of antibacterial agent and 20 to 50 parts of glass fiber. The invention firstly mixes the raw materials uniformly by stirring, then puts the raw materials into a double-screw extruder for melting, finally, the plastic substrate well wraps the glass fiber by a soaking and cladding process, thereby greatly enhancing the mechanical properties of the material, and finally, the prepared composite material has excellent resistance and mechanical properties.
Description
Technical Field
The invention belongs to the technical field of composite materials, and particularly relates to an LFT-G antibacterial PP composite material and a preparation method thereof.
Background
Polypropylene (PP) is one of three polyolefin synthetic materials in the world, and has the advantages of light weight, low price, easy molding and processing, excellent comprehensive performance and the like, and the mechanical properties of the polypropylene can be greatly improved after glass fibers and carbon fibers are added. Polypropylene is widely used in the fields of automobile industry, toys, electric appliances and household appliances, and in order to ensure safety in the use process, a conventional sterilization technology is generally used, so that procedures are required to be increased, production efficiency is reduced, and production cost is further affected.
Disclosure of Invention
Based on the defects and shortcomings of the prior art, the invention provides an LFT-G antibacterial PP composite material, and further provides a preparation method of the material, which comprises the following steps:
the LFT-G antibacterial PP composite material comprises the following components in parts by weight:
50 to 70 percent of PP resin
3 to 5 portions of toughening agent
5 to 10 portions of compatilizer
Lubricant 0.3-0.5
5 to 15 portions of antibacterial agent
20-50 parts of glass fiber.
Further, the PP resin is homo-polypropylene, and the melt index is 30-50g/10min (190 ℃/2.16 kg).
Further, the toughening agent is at least one of ethylene, propylene and octene copolymer.
Further, the compatilizer is one of MBS and TPE; wherein MBS is a copolymerized methyl methacrylate-butadiene styrene (MBS) core-shell impact modifier; wherein the TPE thermoplastic elastomer is formed by copolymerizing 1, 4-butanediol terephthalate and polybutanol.
Further, the lubricant is silicone powder.
Further, the antibacterial agent is one or more of nano inorganic silver, copper and zinc. The nanometer inorganic zinc antibacterial agent is preferentially selected.
Further, the glass fiber is long glass fiber treated by a silane coupling agent, and the diameter of the glass fiber is 7-12um.
An LFT-G antibacterial PP composite material and a preparation method thereof comprise the following steps:
s1, preparing a base material except glass fibers according to a proportion, putting PP resin, a toughening agent, a compatilizer, a lubricant and an antibacterial agent into a premixer, uniformly mixing, heating to 60 ℃, and preserving heat for 15 minutes to obtain a premix;
s2, adding the premix obtained in the step S1 into a feed hopper of a double-screw extruder, adding glass fibers at a side feed port, allowing glass fiber materials to pass through a infiltration mold and be infiltrated and coated by a molten mixture in the infiltration mold, continuously advancing the mixed materials under the action of tensile force, performing water cooling, dehumidification and drying, then entering a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 5-12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, the starting valve temperature is 270 ℃, the temperature of the transition pipe is 270 ℃, the distributor is 260 ℃, the temperature of the machine head is 270 ℃, the rotating speed of a screw is 350-400 r/min, and the feeding amount is 200kg/h.
The invention has the beneficial effects that:
the LFT-G antibacterial PP composite material prepared by the invention greatly enhances the mechanical properties of PP, simultaneously ensures that the PP has an antibacterial function, and can be widely applied to the fields of automotive interiors, toys, furniture and the like.
Detailed Description
The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The LFT-G antibacterial PP composite material comprises the following components in parts by weight:
50 to 70 percent of PP resin
3 to 5 portions of toughening agent
5 to 10 portions of compatilizer
Lubricant 0.3-0.5
5 to 15 portions of antibacterial agent
20-50 parts of glass fiber.
The PP resin is homo-polypropylene, and the melt index is 30-50g/10min (190 ℃/2.16 kg).
The toughening agent is at least one of ethylene, propylene and octene copolymer.
The compatilizer is one of MBS and TPE; the MBS is a copolymerized methyl methacrylate-butadiene styrene (MBS) core-shell type impact modifier; the TPE thermoplastic elastomer is formed by copolymerizing 1, 4-butanediol terephthalate and polybutanol.
The lubricant is silicone powder.
The antibacterial agent is one or more of nano inorganic silver, copper and zinc, and preferably nano inorganic zinc antibacterial agents are selected.
The glass fiber is long glass fiber treated by silane coupling agent, and the diameter is 7-12um.
Example 1
The base material is prepared from the following components in parts by weight: 50kg of PP resin, 5kg of toughening agent, 5kg of compatilizer, 0.5kg of lubricant and 5kg of antibacterial agent are put into a premixer to be uniformly mixed, and the mixture is heated to 60 ℃ and then is kept for 15 minutes to obtain a premix; then adding the premix into a feed hopper of a double-screw extruder, simultaneously penetrating glass fibers from a soaking die and soaking and wrapping the glass fibers by a molten mixture in the soaking die, continuously advancing the mixed materials under the action of pulling force, performing water cooling, dehumidification, drying, then feeding the mixed materials into a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, 270 ℃ of the starting valve, 270 ℃ of the transition pipe, 260 ℃ of the distributor, 270 ℃ of the machine head, 350-400 r/min of the screw rotating speed and 200kg/h of feeding amount.
Example 2
The base material is prepared from the following components in parts by weight: 50kg of PP resin, 5kg of toughening agent, 5kg of compatilizer, 0.5kg of lubricant and 10kg of antibacterial agent are put into a premixer to be uniformly mixed, and the mixture is heated to 60 ℃ and then is kept for 15 minutes to obtain a premix; then adding the premix into a feed hopper of a double-screw extruder, simultaneously penetrating glass fibers from a soaking die and soaking and wrapping the glass fibers by a molten mixture in the soaking die, continuously advancing the mixed materials under the action of pulling force, performing water cooling, dehumidification, drying, then feeding the mixed materials into a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, 270 ℃ of the starting valve, 270 ℃ of the transition pipe, 260 ℃ of the distributor, 270 ℃ of the machine head, 350-400 r/min of the screw rotating speed and 200kg/h of feeding amount.
Example 3
The base material is prepared from the following components in parts by weight: 50kg of PP resin, 5kg of toughening agent, 5kg of compatilizer, 0.5kg of lubricant and 15kg of antibacterial agent are put into a premixer to be uniformly mixed, and the mixture is heated to 60 ℃ and then is kept for 15 minutes to obtain a premix; then adding the premix into a feed hopper of a double-screw extruder, simultaneously penetrating glass fibers from a soaking die and soaking and wrapping the glass fibers by a molten mixture in the soaking die, continuously advancing the mixed materials under the action of pulling force, performing water cooling, dehumidification, drying, then feeding the mixed materials into a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 270 ℃ of the starting valve, 270 ℃ of the transition pipe, 260 ℃ of the distributor, 270 ℃ of the machine head, 350-400 r/min of the screw rotating speed and 200kg/h of feeding amount.
Comparative example 1
The base material is prepared from the following components in parts by weight: 50kg of PP resin, 5kg of toughening agent, 5kg of compatilizer and 0.5kg of lubricant are put into a premixer to be uniformly mixed, and are heated to 60 ℃ and then are kept for 15 minutes to obtain a premix; then adding the premix into a feed hopper of a double-screw extruder, simultaneously penetrating glass fibers from a soaking die and soaking and wrapping the glass fibers by a molten mixture in the soaking die, continuously advancing the mixed materials under the action of pulling force, performing water cooling, dehumidification, drying, then feeding the mixed materials into a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, 270 ℃ of the starting valve, 270 ℃ of the transition pipe, 260 ℃ of the distributor, 270 ℃ of the machine head, 350-400 r/min of the screw rotating speed and 200kg/h of feeding amount.
Comparative example 2
The base material is prepared from the following components in parts by weight: 50kg of PP resin, 5kg of compatilizer, 0.5kg of lubricant and 15kg of antibacterial agent are put into a premixer to be uniformly mixed, and the mixture is heated to 60 ℃ and then is kept for 15 minutes to obtain a premix; then adding the premix into a feed hopper of a double-screw extruder, simultaneously penetrating glass fibers from a soaking die and soaking and wrapping the glass fibers by a molten mixture in the soaking die, continuously advancing the mixed materials under the action of pulling force, performing water cooling, dehumidification, drying, then feeding the mixed materials into a tractor and a granulator, and granulating by the granulator to obtain a granular product with the length of 12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, 270 ℃ of the starting valve, 270 ℃ of the transition pipe, 260 ℃ of the distributor, 270 ℃ of the machine head, 350-400 r/min of the screw rotating speed and 200kg/h of feeding amount.
The PP composite materials prepared in the examples 1-3 and the comparative examples 1-2 are molded into standard patterns by an injection molding machine, and the standard patterns are compared with national and international standards to characterize the mechanical properties and the antibacterial properties.
Table 1 performance test data for each of examples 1-3 and comparative examples 1-2:
as can be seen from Table 1, the antibacterial PP composite material obtained by the technical scheme of the invention has higher toughness, excellent strength and rigidity and good antibacterial effect, and the comparison shows that the effect of the embodiment 2 is best, thereby reaching the expected level, and being widely applied to the fields of automotive interiors, toys, household appliances and the like.
The foregoing is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the foregoing embodiment, and all technical solutions belonging to the principles of the present invention are within the protection scope of the present invention. Modifications which would occur to those skilled in the art without departing from the principles of the invention are also intended to be included within the scope of the invention.
Claims (8)
1. The LFT-G antibacterial PP composite material is characterized by comprising the following components in parts by weight:
50 to 70 percent of PP resin
3 to 5 portions of toughening agent
5 to 10 portions of compatilizer
Lubricant 0.3-0.5
5 to 15 portions of antibacterial agent
20-50 parts of glass fiber.
2. The LFT-G antimicrobial PP composite of claim 1, wherein the PP resin is a homo-polypropylene having a melt index of 30-50G/10min (190 ℃/2.16 kg).
3. The LFT-G antimicrobial PP composite of claim 1, wherein the toughening agent is at least one of ethylene, propylene, octene copolymer.
4. The LFT-G antimicrobial PP composite of claim 1, wherein the compatibilizer is one of MBS and TPE; wherein MBS is a copolymerized methyl methacrylate-butadiene styrene (MBS) core-shell impact modifier; wherein the TPE thermoplastic elastomer is formed by copolymerizing 1, 4-butanediol terephthalate and polybutanol.
5. The LFT-G antimicrobial PP composite of claim 1, wherein the lubricant is silicone powder.
6. The LFT-G antimicrobial PP composite of claim 1, wherein the antimicrobial agent is one or more of nano inorganic silver, copper, zinc, and preferably nano inorganic zinc based antimicrobial agents.
7. The LFT-G antibacterial PP composite material according to claim 1, wherein the glass fiber is a long glass fiber treated by a silane coupling agent, and has a diameter of 7-12um.
8. An LFT-G antibacterial PP composite material and a preparation method thereof are characterized by comprising the following steps: s1, preparing a base material except glass fibers according to a proportion, putting PP resin, a toughening agent, a compatilizer, a lubricant and an antibacterial agent into a premixer, uniformly mixing, heating to 60 ℃, and preserving heat for 15 minutes to obtain a premix;
s2, adding the premix obtained in the step S1 into a feed hopper of a double-screw extruder, adding glass fibers at a side feed port, allowing glass fiber materials to pass through a infiltration mold and be infiltrated and coated by a molten mixture in the infiltration mold, continuously advancing the mixed materials under the action of tensile force, performing water cooling, dehumidification and drying, then entering a tractor and a granulator, and granulating by the granulator to obtain a granular product, wherein the granule length is 5-12mm; the double-screw extruder is divided into nine areas from a feeding port to a machine head, a starting valve, a transition pipe, a distributor and the machine head, wherein the temperatures of one area to the nine areas are 210-220 ℃, 220-230 ℃, 230-235 ℃, 240-245 ℃, 250-255 ℃, 255-260 ℃, 265-270 ℃, 270-280 ℃, 280-285 ℃, the starting valve temperature is 270 ℃, the temperature of the transition pipe is 270 ℃, the distributor is 260 ℃, the temperature of the machine head is 270 ℃, the rotating speed of a screw is 350-400 r/min, and the feeding amount is 200kg/h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211068232.1A CN117683291A (en) | 2022-09-02 | 2022-09-02 | LFT-G antibacterial PP composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211068232.1A CN117683291A (en) | 2022-09-02 | 2022-09-02 | LFT-G antibacterial PP composite material and preparation method thereof |
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| CN202211068232.1A Pending CN117683291A (en) | 2022-09-02 | 2022-09-02 | LFT-G antibacterial PP composite material and preparation method thereof |
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| Country | Link |
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| CN (1) | CN117683291A (en) |
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- 2022-09-02 CN CN202211068232.1A patent/CN117683291A/en active Pending
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