CN112358702A - Antibacterial flame-retardant HIPS composite material - Google Patents
Antibacterial flame-retardant HIPS composite material Download PDFInfo
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- CN112358702A CN112358702A CN202010664575.9A CN202010664575A CN112358702A CN 112358702 A CN112358702 A CN 112358702A CN 202010664575 A CN202010664575 A CN 202010664575A CN 112358702 A CN112358702 A CN 112358702A
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 239000003063 flame retardant Substances 0.000 title claims abstract description 87
- 229920005669 high impact polystyrene Polymers 0.000 title claims abstract description 50
- 239000004797 high-impact polystyrene Substances 0.000 title claims abstract description 50
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 41
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 26
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 24
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 18
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 26
- 229920001661 Chitosan Polymers 0.000 claims description 18
- 238000013329 compounding Methods 0.000 claims description 16
- 239000012141 concentrate Substances 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 239000000047 product Substances 0.000 claims description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 12
- 239000004327 boric acid Substances 0.000 claims description 11
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical group O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- FRPJXPJMRWBBIH-RBRWEJTLSA-N estramustine Chemical compound ClCCN(CCCl)C(=O)OC1=CC=C2[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CCC2=C1 FRPJXPJMRWBBIH-RBRWEJTLSA-N 0.000 claims description 10
- 229960001842 estramustine Drugs 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 8
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 8
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 8
- -1 polysiloxane Polymers 0.000 claims description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000012173 estrus Effects 0.000 claims description 6
- 239000012362 glacial acetic acid Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229940037312 stearamide Drugs 0.000 claims description 4
- 230000000052 comparative effect Effects 0.000 description 18
- 239000004417 polycarbonate Substances 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 14
- 239000004033 plastic Substances 0.000 description 12
- 229920003023 plastic Polymers 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000012994 photoredox catalyst Substances 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 235000010446 mineral oil Nutrition 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000137 polyphosphoric acid Polymers 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 210000002969 egg yolk Anatomy 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses an antibacterial flame-retardant HIPS composite material, which comprises the following raw materials: HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid. The invention provides an antibacterial flame-retardant HIPS composite material and a preparation method thereof, and the prepared product has excellent flame retardance and antibacterial effect on the premise of not reducing the impact resistance by optimizing components and dosage.
Description
Technical Field
The invention belongs to the technical field of polymers, and particularly relates to an antibacterial flame-retardant HIPS composite material.
Background
HIPS (high impact polystyrene) has high impact resistance but poor flame retardancy. In China, the fire situation is not optimistic, and some serious fire accidents frequently occur. Most plastics are combustible substances, and plastic products are required to be nonflammable, have good flame retardant property and have low smoke degree in big fire for plastic building materials, transportation materials, household appliance materials and the like. For this reason, the choice of flame retardants to be added in the plastic formulation becomes very important.
Requirements for flame retardants: (1) the flame retardant function is good, and the flame retardant effect can be obviously achieved with a small amount of the flame retardant; (2) after the flame retardant is added, the mechanical strength of the plastic cannot be influenced, and particularly the thermal deformation temperature, the mechanical temperature and the electrical insulation performance of a plastic product cannot be reduced; (3) the compatibility with resin is good, and the resin does not migrate, precipitate or be extracted in plastic products; (4) in the high-temperature melting molding and thermal molding processing engineering, decomposition and reaction with other materials are avoided; (5) the flame retardant is easy to disperse uniformly in the plastic, has good weather resistance and good durability, and ensures that the plastic has long-term flame retardance.
It can be seen that the selection of flame retardants in plastics is a very complicated process, and all of these factors must be taken into account. Examples are given in existing textbooks: protective film mechanisms, mechanisms that otherwise gas, cool, and terminate chain reaction mechanisms, which may provide a vague direction to flame retardant selection, do not provide a truly effective aid.
Therefore, there is a high necessity for a HIPS resin composition having excellent flame retardancy and antibacterial effect without deteriorating impact resistance.
Disclosure of Invention
The invention provides an antibacterial flame-retardant HIPS composite material, which has excellent flame retardance and antibacterial effect on the premise of not reducing the impact resistance by optimizing components and dosage.
In order to solve the technical problems, the invention adopts the following technical scheme:
the antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid; the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of (2-4) to (4-8), and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 2-4.
Furthermore, the antibacterial flame-retardant HIPS composite material comprises, by mass, 60-80 parts of the following raw materials of HIPS, 10-20 parts of PC, 2-4 parts of an antibacterial agent, 5-10 parts of a composite flame retardant, 3-5 parts of a flame-retardant synergist, 1-3 parts of an antioxidant and 1-3 parts of a processing aid.
Further, the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, polyphosphoric acid amine and silicone according to the mass ratio of 3:3: 6.
Further, the antibacterial agent is obtained by adding the estrus and pollen concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing the solvent and drying.
Further, the flame-retardant synergist is at least one of antimony trioxide, talcum powder, titanium dioxide, lithopone, magnesium carbonate and barium sulfate.
Further, the processing aid is one or a mixture of more of stearamide lubricants, silicone oil and white mineral oil.
Further, the antioxidant is a multi-hindered phenol antioxidant.
Further, the silicone is a polysiloxane having a molecular weight of 1 to 2 ten thousand.
The preparation method of the antibacterial flame-retardant HIPS composite material is characterized by comprising the following steps:
(1) adding HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid into a mixer, and stirring for 1-3 minutes to obtain a mixed raw material;
(2) putting the mixed raw materials in the step 2 and the mixed products in the step 1 into a double-screw extruder for reaction, keeping the materials in a machine barrel for 1-2min to obtain reaction products,
(3) and cutting the reaction product into particles and drying to obtain a finished product.
Further, the temperatures of the zones of the twin-screw extruder are as follows: the first zone is 180-class at 200 ℃, the second zone is 200-class at 220 ℃, the third zone is 200-class at 220 ℃, the fourth zone is 200-class at 220 ℃, the fifth zone is 200-class at 220 ℃, the sixth zone is 200-class at 220 ℃, the seventh zone is 200-class at 220 ℃, the eighth zone is 200-class at 220 ℃, the ninth zone is 200-class at 220 ℃, and the head is 200-class at 210 ℃.
The invention has the following beneficial effects:
the antibacterial flame-retardant HIPS composite material takes HIPS as a base material, a certain amount of PC is compounded, and the high mechanical property and the flame retardance of the PC are utilized, so that the HIPS is modified, the impact property is not reduced when other components are added, and the flame-retardant effect is improved.
The invention adds specific compound fire retardant and specific antibacterial property. The specific compound flame retardant is prepared by compounding dibenzothiophene-4-boric acid, polyphosphoric acid amine and silicone according to a certain proportion. Sulfur dioxide generated by combustion of dibenzothiophene-4-boric acid is combined with water vapor to form strong oxyacid, organic matters can be dehydrated to form charcoal, a charcoal layer is formed to have a protection effect on a polymer matrix, and borate is decomposed and expanded at high temperature to form oxide, so that the flame retardance is further improved, and meanwhile, thiophene substances contained in the flame retardant have a certain improvement effect on the antibacterial effect. The polyphosphoric acid amine has P/N synergistic action components, and the silicone provides Si atoms, so that the compound flame retardant has the synergistic flame retardant effect of multiple components of Si/P/N/B/S, and can be used as a halogen-free flame retardant.
The specific antibacterial property is obtained by compounding the estramustine concentrate powder and the chitosan according to a certain mass ratio. The estramustine concentrate powder and the chitosan have sterilization effects, but the sterilization effects are different, and the estramustine concentrate powder and the chitosan have synergistic sterilization effects when used at the same time. Meanwhile, the chitosan is compounded with the yolk, so that the dispersity can be improved, and the impact resistance of the chitosan can be prevented from being reduced.
According to the antibacterial flame-retardant HIPS composite material, HIPS is used as a base material, a certain amount of PC is compounded, and then a specific compound flame retardant and a specific antibacterial property are added, so that the prepared product has excellent flame retardance and antibacterial effect on the premise of not reducing the impact resistance.
Detailed Description
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
The following is a more specific example.
The antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: 60-80 parts of HIPS (high impact polystyrene), 10-20 parts of PC (polycarbonate), 2-4 parts of an antibacterial agent, 5-10 parts of a composite flame retardant, 3-5 parts of a flame-retardant synergist, 1-3 parts of an antioxidant and 1-3 parts of a processing aid; the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of (2-4) to (4-8), and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 2-4.
The HIPS is a commercially available general injection molding grade HIPS. The antibacterial agent is obtained by adding the estrus and rhizoma polygonati concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing a solvent and drying. The flame-retardant synergist is at least one of antimony trioxide, talcum powder, titanium dioxide, lithopone, magnesium carbonate and barium sulfate. The processing aid is one or a mixture of more of stearamide lubricants, silicone oil and white mineral oil. The antioxidant is a multi-element hindered phenol antioxidant. The silicone is polysiloxane, and the molecular weight of the silicone is 1-2 ten thousand.
The preparation method of the antibacterial flame-retardant HIPS composite material is characterized by comprising the following steps:
(1) adding HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid into a mixer, and stirring for 1-3 minutes to obtain a mixed raw material;
(2) putting the mixed raw materials in the step 2 and the mixed products in the step 1 into a double-screw extruder for reaction, and allowing the materials to stay in a machine barrel for 1-2min to obtain reaction products, wherein the temperature of each zone of the double-screw extruder is as follows: the first zone is 180-class at 200 ℃, the second zone is 200-class at 220 ℃, the third zone is 200-class at 220 ℃, the fourth zone is 200-class at 220 ℃, the fifth zone is 200-class at 220 ℃, the sixth zone is 200-class at 220 ℃, the seventh zone is 200-class at 220 ℃, the eighth zone is 200-class at 220 ℃, the ninth zone is 200-class at 220 ℃, and the head is 200-class at 210 ℃.
(3) And cutting the reaction product into particles and drying to obtain a finished product.
Example 1
The antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: 70 parts of HIPS, 15 parts of PC, 3 parts of an antibacterial agent, 7.5 parts of a composite flame retardant, 4 parts of a flame retardant synergist, 2 parts of an antioxidant and 2 parts of a processing aid; the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of 3:3:6, and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 3.
The antibacterial agent is obtained by adding the estrus and rhizoma polygonati concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing a solvent and drying. The flame-retardant synergist is antimony trioxide. The processing aid is a stearamide lubricant. The antioxidant is a multi-element hindered phenol antioxidant. The silicone is polysiloxane, and the molecular weight of the silicone is 1-2 ten thousand.
The preparation method of the antibacterial flame-retardant HIPS composite material is characterized by comprising the following steps:
(1) adding HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid into a mixer, and stirring for 1-3 minutes to obtain a mixed raw material;
(2) putting the mixed raw materials in the step 2 and the mixed products in the step 1 into a double-screw extruder for reaction, and allowing the materials to stay in a machine barrel for 1-2min to obtain reaction products, wherein the temperature of each zone of the double-screw extruder is as follows: the first zone is 180-class at 200 ℃, the second zone is 200-class at 220 ℃, the third zone is 200-class at 220 ℃, the fourth zone is 200-class at 220 ℃, the fifth zone is 200-class at 220 ℃, the sixth zone is 200-class at 220 ℃, the seventh zone is 200-class at 220 ℃, the eighth zone is 200-class at 220 ℃, the ninth zone is 200-class at 220 ℃, and the head is 200-class at 210 ℃.
(3) And cutting the reaction product into particles and drying to obtain a finished product.
Example 2
The antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: 80 parts of HIPS, 10 parts of PC, 4 parts of an antibacterial agent, 5 parts of a composite flame retardant, 5 parts of a flame retardant synergist, 1 part of an antioxidant and 3 parts of a processing aid; the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of 2: 4:4, and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 4.
The antibacterial agent is obtained by adding the estrus and rhizoma polygonati concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing a solvent and drying. The flame-retardant synergist is antimony trioxide. The processing aid is silicone oil. The antioxidant is a multi-element hindered phenol antioxidant. The silicone is polysiloxane, and the molecular weight of the silicone is 1-2 ten thousand.
The preparation method is the same as that of example 1.
Example 3
The antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: 60 parts of HIPS, 20 parts of PC, 2 parts of an antibacterial agent, 10 parts of a composite flame retardant, 3 parts of a flame retardant synergist, 3 parts of an antioxidant and 1 part of a processing aid; the compound flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of 4: 2: 8, and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 2.
The antibacterial agent is obtained by adding the estrus and rhizoma polygonati concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing a solvent and drying. The flame-retardant synergist is talcum powder. The processing aid is white mineral oil. The antioxidant is a multi-element hindered phenol antioxidant. The silicone is polysiloxane, and the molecular weight of the silicone is 1-2 ten thousand.
The preparation method is the same as that of example 1.
Comparative example 1
The procedure was essentially the same as in example 1, except that the raw materials used to make the antimicrobial flame retardant HIPS composite lacked PC.
Comparative example 2
The procedure was essentially the same as in example 1, except that the antimicrobial agent was absent from the raw materials used to make the antimicrobial flame retardant HIPS composite.
Comparative example 3
The preparation process is basically the same as that of the example 1, except that the antibacterial agent in the raw material for preparing the antibacterial flame-retardant HIPS composite material is chitosan.
Comparative example 4
The preparation process is basically the same as that of the example 1, except that the antibacterial agent in the raw material for preparing the antibacterial flame-retardant HIPS composite material is the estramustine concentrate powder.
Comparative example 5
The preparation process is basically the same as that of the embodiment 1, except that the compound flame retardant in the raw materials for preparing the antibacterial flame-retardant HIPS composite material is dibenzothiophene-4-boric acid.
Comparative example 6
The preparation process is basically the same as that of the example 1, except that the compound flame retardant in the raw materials for preparing the antibacterial flame-retardant HIPS composite material is ammonium polyphosphate.
Comparative example 7
The preparation process is basically the same as that of the embodiment 1, except that the compound flame retardant in the raw materials for preparing the antibacterial flame-retardant HIPS composite material is prepared by compounding dibenzothiophene-4-boric acid and ammonium polyphosphate according to the mass ratio of 3: 3.
Comparative example 8
The preparation process is basically the same as that of the example 1, except that no compound flame retardant is added in the raw materials for preparing the antibacterial flame-retardant HIPS composite material.
The products prepared in the above examples and comparative examples were pressed into sheets to prepare 50mm × 50mm plastic samples for antibacterial testing, and the test data are shown in table 1. Antibacterial test standard: QB/T2591-2003A & ltantibacterial plastic antibacterial property test method and antibacterial effect & gt. Detection bacteria: escherichia coli (Escherichia coli) ATCC 25922. The combustion performance was tested according to the UL94 standard.
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 | Comparative example 7 | Comparative example 8 | |
| Impact strength ISO179 (23 ℃) KJ/m of simply supported beam2 | 68 | 65 | 64 | 65 | 63 | 66 | 62 | 67 | 66 | 61 | 66 |
| Combustibility (3.2 mm) | V-0 | V-0 | V-0 | V-1 | V-1 | V-0~V-1 | V-1 | V-1 | V-1 | V-1 | V-2 |
| Antibacterial rate | 91% | 88% | 86% | 89% | 34% | 79% | 72% | 81% | 87% | 86% | 80% |
From the above table, it can be seen that: as can be seen from the data of the examples 1-3 and the comparative examples 1-9, the antibacterial flame-retardant HIPS composite material provided by the invention has the advantages that HIPS is used as a base material, a certain amount of PC is compounded, and then the specific compounded flame retardant and the specific antibacterial property are added, so that the prepared product has excellent flame retardance and antibacterial effect on the premise of not reducing the impact resistance.
The above description should not be taken as limiting the invention to the embodiments, but rather, as will be apparent to those skilled in the art to which the invention pertains, numerous simplifications or substitutions may be made without departing from the spirit of the invention, which shall be deemed to fall within the scope of the invention as defined by the claims appended hereto.
Claims (1)
1. The antibacterial flame-retardant HIPS composite material is characterized by comprising the following raw materials in parts by mass: 70 parts of HIPS, 15 parts of PC, 3 parts of an antibacterial agent, 7.5 parts of a composite flame retardant, 4 parts of a flame retardant synergist, 2 parts of an antioxidant and 2 parts of a processing aid; the composite flame retardant is obtained by compounding dibenzothiophene-4-boric acid, ammonium polyphosphate and silicone according to the mass ratio of 3:3:6, and the antibacterial agent is obtained by compounding estramustine concentrate powder and chitosan according to the mass ratio of 1: 3;
the antibacterial agent is obtained by adding the estrus and rhizoma polygonati concentrate powder into a chitosan glacial acetic acid solution, uniformly stirring, volatilizing a solvent and drying; the flame-retardant synergist is antimony trioxide; the processing aid is a stearamide lubricant; the antioxidant is a multi-element hindered phenol antioxidant; the silicone is polysiloxane, and the molecular weight of the silicone is 1-2 ten thousand;
the preparation method of the antibacterial flame-retardant HIPS composite material comprises the following steps:
(1) adding HIPS, PC, an antibacterial agent, a composite flame retardant, a flame retardant synergist, an antioxidant and a processing aid into a mixer, and stirring for 1-3 minutes to obtain a mixed raw material;
(2) putting the mixed raw materials in the step 2 and the mixed products in the step 1 into a double-screw extruder for reaction, and allowing the materials to stay in a machine barrel for 1-2min to obtain reaction products, wherein the temperature of each zone of the double-screw extruder is as follows: the first zone is 180-;
(3) and cutting the reaction product into particles and drying to obtain a finished product.
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| CN202010664575.9A CN112358702A (en) | 2018-04-29 | 2018-04-29 | Antibacterial flame-retardant HIPS composite material |
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| CN202010664575.9A CN112358702A (en) | 2018-04-29 | 2018-04-29 | Antibacterial flame-retardant HIPS composite material |
| CN201810405388.1A CN108424604B (en) | 2018-04-29 | 2018-04-29 | Antibacterial flame-retardant HIPS (high impact polystyrene) composite material and preparation method thereof |
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| WO2012039410A1 (en) * | 2010-09-22 | 2012-03-29 | 東レ株式会社 | Flame-retardant styrene thermoplastic resin composition and molded product thereof |
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| CN106117945A (en) * | 2016-06-30 | 2016-11-16 | 芜湖三刀材料科技有限公司 | A kind of PS Wood-plastic foam material and preparation method thereof |
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| JP5051522B2 (en) * | 2007-04-18 | 2012-10-17 | 株式会社森川商店 | Flame retardant for thermoplastic resin and flame retardant resin composition |
| CN103387709B (en) * | 2012-05-08 | 2017-08-29 | 合肥杰事杰新材料股份有限公司 | A kind of thermoplastic composite, preparation method and applications |
| CN104877322A (en) * | 2014-02-28 | 2015-09-02 | 汉达精密电子(昆山)有限公司 | Modified fiber reinforced polycarbonate composite material and product thereof |
| CN106566218A (en) * | 2015-10-13 | 2017-04-19 | 上海杰事杰新材料(集团)股份有限公司 | Halogen-free, flame-retardant and antibacterial polycarbonate composite material and preparation method thereof |
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| WO2012039410A1 (en) * | 2010-09-22 | 2012-03-29 | 東レ株式会社 | Flame-retardant styrene thermoplastic resin composition and molded product thereof |
| CN103119096A (en) * | 2010-09-22 | 2013-05-22 | 东丽株式会社 | Flame-retardant styrene thermoplastic resin composition and molded product thereof |
| CN103131110A (en) * | 2011-11-29 | 2013-06-05 | 上海杰事杰新材料(集团)股份有限公司 | Inflaming retarding poly carbonate(PC)/poly styrene (PS) mixed alloy materials and manufacture method and purpose thereof |
| CN106117945A (en) * | 2016-06-30 | 2016-11-16 | 芜湖三刀材料科技有限公司 | A kind of PS Wood-plastic foam material and preparation method thereof |
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| CN108424604A (en) | 2018-08-21 |
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Application publication date: 20210212 |