CN107987538A - A kind of antibacterial TPE and preparation method thereof - Google Patents
A kind of antibacterial TPE and preparation method thereof Download PDFInfo
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- CN107987538A CN107987538A CN201711254963.4A CN201711254963A CN107987538A CN 107987538 A CN107987538 A CN 107987538A CN 201711254963 A CN201711254963 A CN 201711254963A CN 107987538 A CN107987538 A CN 107987538A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The present invention relates to antibiotic plastic, a kind of antibacterial TPE and preparation method thereof is disclosed, antibacterial TPE includes following component, and the mass fraction of each component and each component is：24 parts of 50 60 parts of SBES, 20 60 parts of PP, 60 80 parts of white oil, 5 15 parts of antiseptic, 0.1 20 parts of fire retardant DOPO and anti-UV agent；Antiseptic is made of the one or more in quaternary ammonium salt, chitosan, sorbic acid, has the effect that the antibacterial effect for slowing down antibacterial TPE is aoxidized and reduced with the time.
Description
Technical field
The present invention relates to antibiotic plastic, more particularly to a kind of antibacterial TPE and preparation method thereof.
Background technology
Antibiotic plastic has the effect for suppressing surface bacteria or fungi growth and is widely used in medical equipment and toy material
In material.Existing antibiotic plastic has mixed with antiseptic, wherein antiseptic again using organic antibacterial agent and natural antibacterial agent as mainstream
Machine antiseptic includes quaternary ammonium salt, phenolic ether class and phenol etc., and natural antibacterial agent is then chitosan and sorbic acid etc..
But machine antiseptic and natural antibacterial agent can be decomposed or even fail by the dioxygen oxidation in air.It is currently used for
Its principle of the antioxidant of rubber and resin is mostly to be directed to free chain reaction, is hindered by being reacted with free radical R or RO2
Only free radical continues to transmit or prevents free radical from producing with the source reactant of free radical, realizes to the anti-oxidant of rubber and resin.
Such antiseptic cannot directly prevent the oxidation of quaternary ammonium salt or sorbic acid or chitosan, and oxidation-protective effect is bad, thus cause existing
There is the antibiotic plastic using machine antiseptic or natural antibacterial agent to increase with usage time, the gradual oxygenolysis of antiseptic is even lost
Effect, antibacterial effect are remarkably decreased.
The content of the invention
First purpose of the present invention is in view of the deficiencies of the prior art, there is provided a kind of antibacterial TPE, it, which has, slows down antibacterial
The effect that the antibacterial effect of TPE is aoxidized and reduced with the time.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of antibacterial TPE, antibacterial TPE include following component, and the mass fraction of each component and each component is：SBES 50-60
Part, 20-60 parts of PP, 60-80 parts of white oil, 5-15 parts of antiseptic, 0.1-20 parts of fire retardant DOPO and 2-4 parts of anti-UV agent；It is described
Antiseptic is made of the one or more in quaternary ammonium salt, chitosan, sorbic acid.
By using above-mentioned technical proposal, fire retardant DOPO is the miscellaneous -10- phospho hetero phenanthrenes -10- oxidations of 9,10- dihydro-9-oxies
Thing, it carries the side phosphorus group and P-H keys introduced in a manner of ring-type O=P-O keys, it produces small molecule in burning to dilute
Antibacterial TPE ignites caused fuel gas, and when fire retardant DOPO can improve polymer combustion into charcoal ratio so that it is anti-
Bacterium TPE surfaces form closely knit layer of charcoal, hinder antibacterial TPE to burn away；Another aspect P-H keys have stronger reproducibility, resistance
After combustion agent DOPO is mixed with antiseptic, antiseptic oxidation can be slowed down and slow down the reduction of its antibacterial effect, and prevent antibacterial TPE systems
Finished product is coloured because light and heat causes antiseptic to aoxidize in use.
Preferably, the SEBS is net structure, its weight average molecular weight is between 200000-300000.
By using above-mentioned technical proposal, the weight average molecular weight of SEBS used is larger so that and its oily effect of oil-filled and lock is good,
Oil-filled required time and the oil-filled rear product of reduction in S2 is reduced to place a period of time product surface and have oil product precipitation.
Preferably, the white oil is 7# paraffin oils or 10# paraffin oils, and kinematic viscosity is 5-12mm at its 40 DEG C2/ s,
The mass fraction of aromatic hydrocarbons is less than 0.15.
By using above-mentioned technical proposal, paraffin oil volatilization is small, arene content is low does not produce peculiar smell, while paraffin oil conduct
Oil-filled white oil, can improve mobility, flexible resistance and the photostability of product so that the smooth performance of product surface is good, proper
The body-sensing of human body.
Preferably, the antibacterial TPE is further included 1.5-4.5 parts of slipping agent by mass fraction.
Through the above technical solutions, slipping agent avoids antibacterial TPE production processes from being adhered with equipment.
Preferably, the slipping agent is erucyl amide.
By using above-mentioned technical proposal, as slipping agent, it with fire retardant DOPO phase reactions, is not avoided brokenly erucyl amide
Bad P-H keys are destroyed.
Preferably, the fire retardant DOPO additions number is preferably 10-15 parts.
By using above-mentioned technical proposal, by antibacterial value die-away test, according to GB/T 19466.6-2009 criterion calculations
Antibacterial value, antibacterial value attenuation are unoxidized antibacterial TPE and the antibacterial TPE antibacterial value differences after attenuation by oxygen, and addition is fire-retardant
When agent DOPO numbers reach 10-15 parts, antibacterial TPE is close to Staphylococcus aureus antibacterial value attenuation to be stablized, while antibacterial
TPE also tends to stablize to Escherichia coli antibacterial value attenuation, therefore it is preferred that addition fire retardant DOPO numbers are 10-15 parts.
Second object of the present invention is the deficiencies in the prior art, there is provided a kind of preparation method of antibacterial TPE, mixing are complete
Material melting extrusion is carried out in double screw extruder, fire retardant DOPO is largely scattered in the surface of the antibacterial TPE of extrusion,
Improve utilization rate.
The present invention above-mentioned technical purpose technical scheme is that：
S1：50-60 parts of SBES and 20-60 parts of PP heat temperature raisings in high mixer are carried out at the same time premix；
S2：After premixing 2h, keep heating-up temperature 60-80 parts of white oil of addition and be stirred 5min；
S3：Treat that SBES particle surfaces are remained without obvious white oil, continue stirring at the same time by mass fraction addition fire retardant DOPO, antibacterial
Agent, filler, slipping agent and anti-UV agent.
S4：S3 is mixed to the material completed and adds draw ratio to carry out melting extrusion in 44: 1 double screw extruder, is obtained
To antibacterial TPE plastic pellets.
By using above-mentioned technical proposal, heating stirring can accelerate paraffin oil absorption；SEBS be Polystyrene-Polyethylene-
Polybutene-polystyrene block copolymer, at normal temperatures, polystyrene (PS) section stiff plastic block of SEBS, with middle second
Alkene/butylene (EB) elastomeric blocks, both blocks are thermodynamically incompatible each other, so as to produce two phase structure, are in
Micron-scale phase separation state.The PS sections of SEBS form phase region, are scattered in the rubber phase of EB sections of formation, and form physics with EB sections and hand over
Networking network, with increasing for PS contents, distribution of the PS phases in EB phases becomes net structure from long vermiform, after paraffin oil absorbs
It is filled in the gap between polystyrene section stiff plastic block, is put into SEBS after white oil absorption by fire retardant DOPO
High mixer mixes, and fire retardant DOPO and alkane compatibility are poor, is not easy to penetrate into the SEBS after oil suction, mixes complete material and exist
Melting extrusion is carried out in double screw extruder, fire retardant DOPO is largely scattered in the surface of the antibacterial TPE of extrusion, improves and uses
Rate.
Preferably, in the S2 heating and temperature control at 98-103 DEG C.
Through the above technical solutions, when experimental verification heating-up temperature is preferably 98 DEG C -103 DEG C, white oil be fully absorbed and
It is relatively low to heat energy consumption.
Preferably, mixing speed is 150-180r/min in the S2.
Through the above technical solutions, when experimental verification heating and temperature control is preferably 98 DEG C -103 DEG C, mixing speed in S2
For 150-180r/min, white oil is fully absorbed and to stir energy consumption relatively low.
Preferably, heating-up temperature is maintained between 117-120 DEG C during the S3 additions fire retardant DOPO.
By using above-mentioned technical proposal, temperature is fluctuated positioned at 117-120 DEG C in fire retardant DOPO fusing points so that fire retardant
DOPO is in the state of Melting And Solidification repeatedly so that it is uniformly mixed.
In conclusion the invention has the advantages that：
1. fire retardant DOPO is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, it is with P-H keys and with ring-type O=
The side phosphorus group that the mode of P-O keys introduces, while as fire retardant, P-H keys have stronger reproducibility and its be connected to ring
The P atoms of shape O=P-O keys so that fire retardant DOPO is mixed with quaternary ammonium salt or chitosan or sorbic acid and is attached to antibacterial TPE's
Surface, slowing down antiseptic oxidation causes the reduction of its antibacterial effect；
There is 2.P-H keys stronger reproducibility can also prevent in antibacterial TPE process because temperature is excessive or antibacterial TPE manufactured goods
Coloured by illumination effect；
3. at 98-103 DEG C, mixing speed 150-180r/min, white oil is filled heating and temperature control in S2 in component proportion
Divide absorption and heating and stirring energy consumption are relatively low.
Brief description of the drawings：
Fig. 1 is that fire retardant DOPO number graphs of a relation are added in antibacterial value attenuation-S3.
Embodiment
The G1645 trades mark that the SEBS sections of electing as rise, the YSH503 and YSH601 of Ba Ling petrochemical industry, it is net structure, hydrogenation degree
More than 99.98%, weight average molecular weight is between 200000-300000.
White oil elects Maoming Petrochemical direct-furnish 7# paraffin oils, 10# paraffin oils as, and kinematic viscosity is 5-12mm at its 40 DEG C2/ s, virtue
The mass fraction of hydrocarbon is less than 0.15, and ultraviolet absorptivity of the condensed-nuclei aromatics under wavelength 260-350nm is less than 0.13.
Antiseptic select quaternary ammonium salt, chitosan, sorbic acid single substance or secondly kind and its two or more material mixings into
Mixture.
Slipping agent elects the micro mist erucyl amide of Changsha Hengchang chemical industry as.
Fire retardant DOPO is 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide.
It is calcium carbonate that filler, which is selected,.
Embodiment one,
A1：50 parts of SBES and 40 parts of PP heat temperature raisings in high mixer are carried out at the same time premix；
A2：After premixing 2h, keep heating-up temperature 80 parts of white oil of addition and 5min is stirred with 165r/min rotating speeds；
A3：Stop stirring, observe the oil-filled situation of material in high mixer.
Tested to obtain result according to 90 DEG C, 95 DEG C, 100 DEG C and 105 DEG C of heating-up temperature as follows：
Energy is heated while make it that white oil is fully absorbed there are a temperature range in 95-105 DEG C of temperature as seen from the above table
Consume relatively low, and be conducive to white oil in its interior heating-up temperature rise and absorbed.
Embodiment two,
Its experimental procedure is identical with embodiment one, according to 96 DEG C, 97 DEG C, 98 DEG C, 99 DEG C, 101 DEG C, 102 DEG C, 103 DEG C, 104 DEG C
Heating-up temperature tested to obtain result it is as follows：
| Temperature/DEG C | The oil-filled situation of material |
| 96 | Micro- moistening, no clustering phenomena |
| 97 | Micro- moistening, no clustering phenomena |
| 98 | Micro- moistening, no clustering phenomena |
| 99 | Micro- moistening, no clustering phenomena |
| 101 | Micro- moistening, no clustering phenomena |
| 102 | Micro- moistening, no clustering phenomena |
| 103 | It is completely dried, no clustering phenomena |
| 104 | It is completely dried, no clustering phenomena |
Embodiment three,
B1：60 parts of SBES and 40 parts of PP heat temperature raisings in high mixer are carried out at the same time premix；
B2：After premixing 2h, keep heating-up temperature 60 parts of white oil of addition and 5min is stirred with 165r/min rotating speeds；
B3：Stop stirring, observe the oil-filled situation of material in high mixer.
Tested to obtain according to 96 DEG C, 97 DEG C, 98 DEG C, 99 DEG C, 100 DEG C, 101 DEG C, 102 DEG C, 103 DEG C of heating-up temperature
As a result it is as follows：
By embodiment two and the result of embodiment three, SEBS reaches most with white oil ratio in embodiment two in component requirements
Small, white oil absorbs complete during 103 DEG C of heating-up temperature；SEBS reaches maximum with white oil ratio in embodiment three in component requirements, adds
It is absorbed complete during 98 DEG C of hot temperature, therefore when heating-up temperature is preferably 98 DEG C -103 DEG C, white oil is fully absorbed and heats energy consumption
It is relatively low.
Example IV,
C1：40 parts of 50 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
C2：After premixing 2h, keep 98 DEG C of heating-up temperature 80 parts of white oils of addition and stir 5min；
C3：Stop stirring, observe the oil-filled situation of material in high mixer.
Agitation revolution is according to 130r/min, 140r/min, 150r/min, 160r/min, 170r/min, 180r/ in C2
Min, 190r/min are tested to obtain result as follows：
| Agitation revolution/rmin-1 | The oil-filled situation of material |
| 130 | Micro- moistening, no clustering phenomena |
| 140 | Micro- moistening, no clustering phenomena |
| 150 | Micro- moistening, no clustering phenomena |
| 160 | Micro- moistening, no clustering phenomena |
| 170 | Micro- moistening, no clustering phenomena |
| 180 | It is completely dried, no clustering phenomena |
| 190 | It is completely dried, no clustering phenomena |
Embodiment five,
D1：40 parts of 60 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
D2：After premixing 2h, keep 103 DEG C of heating-up temperature 60 parts of white oils of addition and stir 5min；
D3：Stop stirring, observe the oil-filled situation of material in high mixer.
Agitation revolution is according to 120r/min, 130r/min, 140r/min, 150r/min, 160r/min, 170r/ in D2
Min, 180r/min are tested to obtain result as follows：
| Agitation revolution/rmin-1 | The oil-filled situation of material |
| 120 | Micro- moistening, no clustering phenomena |
| 130 | Micro- moistening, no clustering phenomena |
| 140 | Micro- moistening, no clustering phenomena |
| 150 | It is completely dried, no clustering phenomena |
| 160 | It is completely dried, no clustering phenomena |
| 170 | It is completely dried, no clustering phenomena |
| 180 | It is completely dried, no clustering phenomena |
By example IV and the result of embodiment five, SEBS reaches most with white oil ratio in embodiment two in component requirements
Small and heating-up temperature is 98 DEG C, and as rotating speed 180r/min, white oil absorbs complete；In component requirements in embodiment five SEBS with
White oil ratio reaches maximum and heating-up temperature is 103 DEG C, and as rotating speed 150r/min, white oil absorbs complete, therefore speed of agitator is excellent in S2
Elect 150-180r/min as, white oil is fully absorbed and to stir energy consumption relatively low.
Embodiment six,
S1：40 parts of 50 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
S2：After premixing 2h, heating-up temperature is kept to add 70 parts of white oil at the same time with 165r/min mixing speeds stirring 5min；
S3：Improve heating-up temperature continue between 118 DEG C stirring at the same time addition 10 parts of fire retardant DOPO, 10 parts of antiseptics, 20 parts
Filler and 3 parts of anti-UV agent；
S4：S3 is mixed to the material completed and adds draw ratio to carry out melting extrusion in 44: 1 double screw extruder, is resisted
Bacterium TPE plastic pellets.
Embodiment seven,
S1：40 parts of 50 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
S2：After premixing 2h, heating-up temperature is kept to add 70 parts of white oil at the same time with 165r/min mixing speeds stirring 5min；
S3：Improve heating-up temperature continue between 118 DEG C stirring at the same time addition 10 parts of fire retardant DOPO, 10 parts of antiseptics, 20 parts
Filler, 3 parts of anti-UV agent and 3 parts of slipping agents；
S4：S3 is mixed to the material completed and adds draw ratio to carry out melting extrusion in 44: 1 double screw extruder, is resisted
The plastic pellet of bacterium TPE.
Embodiment eight,
S1：40 parts of 60 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
S2：After premixing 2h, heating-up temperature is kept to add 70 parts of white oil at the same time with 165r/min mixing speeds stirring 5min；
S3：Heating-up temperature is improved to continue to stir while add 10 parts of antiseptics, 20 parts of fillers, 3 parts of anti-UV agent between 118 DEG C
With 3 parts of slipping agents；
S4：S3 is mixed to the material completed and adds draw ratio to carry out melting extrusion in 44: 1 double screw extruder, is resisted
Bacterium TPE plastic pellets.
Embodiment nine,
S1：40 parts of 50 parts of SBES and PP are heated to 100 DEG C in high mixer and are carried out at the same time premix；
S2：After premixing 2h, heating-up temperature is kept to add 70 parts of white oil at the same time with 165r/min mixing speeds stirring 5min；
S3：Improve heating-up temperature continue between 118 DEG C stirring at the same time addition 10 parts it is oil-filled after SBES, 10 parts of antiseptics, 20
Part filler, 3 parts of anti-UV agent and 3 parts of slipping agents, wherein 10 parts it is oil-filled after SBES it is identical with the SEBS obtained after S1, S2.
S4：S3 is mixed to the material completed and adds draw ratio to carry out melting extrusion in 44: 1 double screw extruder, is obtained
To antibacterial TPE plastic pellets.
Antiseptic is quaternary ammonium salt, chitosan, sorbic acid with the system of relative mass ratio 1: 0.8: 0.9 in above-mentioned four groups of embodiments
, using the antibacterial TPE that above-mentioned four groups of embodiments are formulated as experimental subjects, carry out antibacterial value decay test.
Sample is made according to GB/T 19466.6-2009 standard testings in the antibacterial TPE plastic pellets that Example nine obtains
Oxidation induction time (isothermal OIT) is, it is specified that temperature is 35 DEG C.
The antibacterial TPE plastic pellets that embodiment six to embodiment nine obtains are made 4 according to GB/T 19466.6-2009 standards
Group antibacterial TPE samples, carry out oxidation induction time test experiments, when experimental period measures oxidation induction time for embodiment nine
During half, stop testing and simultaneously take out sample, as with embodiment six to the corresponding comparative example six of embodiment nine to comparative example nine.
Sample and the sample of comparative example six to comparative example nine carry out antibacterial as made of above-described embodiment six to embodiment nine
Property performance test.
Antibiotic property performance test：By JIS Z22801 standard testings staphylococcus aureus antibacterial activity values and Escherichia coli
Antibacterial activity value.
| Staphylococcus aureus antibacterial value | Escherichia coli antibacterial value | |
| Embodiment six | 4.8 | 4.7 |
| Comparative example six | 4.0 | 3.8 |
| Antibacterial value attenuation after oxidation | 0.8 | 0.7 |
| Embodiment seven | 4.8 | 4.7 |
| Comparative example seven | 4.0 | 3.8 |
| Antibacterial value attenuation after oxidation | 0.8 | 0.7 |
| Embodiment eight | 4.8 | 4.7 |
| Comparative example eight | 2.5 | 2.1 |
| Antibacterial value attenuation after oxidation | 2.3 | 2.6 |
| Embodiment nine | 4.7 | 4.7 |
| Comparative example nine | 2.5 | 2.1 |
| Antibacterial value attenuation after oxidation | 2.2 | 2.6 |
By upper table, addition fire retardant DOPO effectively slow down the antibacterial effect of antibacterial TPE with time oxidation and
The situation of reduction.
Embodiment ten,
It is based on the basis of embodiment six, and the number of the fire retardant DOPO to being added in S3 adjusts and uses every kind of adjustment number
Control group and attenuation by oxygen group is made in antibacterial TPE afterwards, carries out antibacterial value decay test.The wherein number tune of fire retardant DOPO
Whole is respectively 1 part, 3 parts, 7 parts, 11 parts, 13 parts, 15 parts, 17 parts, 20 parts.
By upper table can, with fire retardant DOPO addition number increase, antibacterial TPE it is oxidized after antibacterial value it is bigger,
It is smaller that antibacterial effect by oxidation is influenced reduction degree.
Referring to attached drawing 1, antibacterial value attenuation is unoxidized antibacterial TPE and the antibacterial TPE antibacterial value differences after attenuation by oxygen
Value.By upper figure, reduce with addition fire retardant DOPO numbers increase antibacterial value attenuation, addition fire retardant DOPO numbers reach
During to 10-15 parts, antibacterial TPE is close to Staphylococcus aureus antibacterial value attenuation to be stablized, while antibacterial TPE resists Escherichia coli
Bacterium value attenuation also tends to stablize, therefore it is preferred that addition fire retardant DOPO numbers are 10-15 parts.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
Claims (10)
1. a kind of antibacterial TPE, it is characterised in that antibacterial TPE includes the mass fraction of following component, each component and each component
For：50-60 parts of SBES, 20-60 parts of PP, 60-80 parts of white oil, 5-15 parts of antiseptic, 0.1-20 parts of fire retardant DOPO and anti-UV
2-4 parts of agent；The antiseptic is made of the one or more in quaternary ammonium salt, chitosan, sorbic acid.
2. a kind of antibacterial TPE according to claim 1, it is characterised in that the SEBS is net structure, its Weight-average molecular
Measure as between 200000-300000.
3. a kind of antibacterial TPE according to claim 1, it is characterised in that the white oil is 7# paraffin oils or 10# paraffin
Oil, kinematic viscosity is 5-12mm at its 40 DEG C2/ s, the mass fraction of aromatic hydrocarbons are less than 0.15.
4. a kind of antibacterial TPE according to claim 1, it is characterised in that the antibacterial TPE is further included according to the mass fraction
There is 1.5-4.5 parts of slipping agent.
5. a kind of antibacterial TPE according to claim 4, it is characterised in that the slipping agent is erucyl amide.
6. a kind of antibacterial TPE according to claim 1, it is characterised in that the fire retardant DOPO adds number and is preferably
10-15 parts.
7. according to a kind of preparation method of antibacterial TPE of claim 1-6 any one of them, it comprises the following steps：
S1：50-60 parts of SBES and 20-60 parts of PP heat temperature raisings in high mixer are carried out at the same time premix；
S2：After premixing 2h, keep heating-up temperature 60-80 parts of white oil of addition and stir 5min；
S3：Treat that SBES particle surfaces are remained without obvious white oil, continue stirring at the same time by addition fire retardant DOPO, antiseptic, filling
Agent, anti-UV agent and other components, are uniformly mixed；
S4：It is 44 that S3 is mixed to the material completed and adds draw ratio:Melting extrusion in 1 double screw extruder, obtains antibacterial TPE
Plastic pellet.
8. the preparation method of a kind of antibacterial TPE according to claim 7, it is characterised in that heating-up temperature exists in the S2
In 98-103 DEG C.
9. the preparation method of a kind of antibacterial TPE according to claim 8, it is characterised in that mixing speed is in the S2
150-180r/min。
10. the preparation method of a kind of antibacterial TPE according to claim 7, it is characterised in that the S3 adds fire retardant
Heating-up temperature is heated up during DOPO and is maintained between 117-120 DEG C.
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| CN111393744A (en) * | 2020-03-26 | 2020-07-10 | 南京京锦元科技实业有限公司 | TPE material with antibacterial conductivity and preparation method thereof |
| CN111534111A (en) * | 2020-05-20 | 2020-08-14 | 东莞市山普科技有限公司 | Antibacterial TPE (thermoplastic elastomer) super-soft material as well as preparation method and application thereof |
| WO2020215618A1 (en) * | 2019-04-26 | 2020-10-29 | 威宝工业（惠州）有限公司 | Thermoplastic elastomer |
| CN111892822A (en) * | 2020-07-28 | 2020-11-06 | 台橡（上海）实业有限公司 | Thermoplastic elastomer medical respirator material and processing method thereof |
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| CN111892822A (en) * | 2020-07-28 | 2020-11-06 | 台橡（上海）实业有限公司 | Thermoplastic elastomer medical respirator material and processing method thereof |
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