CN109135298A - A kind of wear-resisting hydrophobic type semiconductor silicon rubber - Google Patents
A kind of wear-resisting hydrophobic type semiconductor silicon rubber Download PDFInfo
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Abstract
The invention discloses a kind of wear-resisting hydrophobic type semiconductor silicon rubber, belong to technical field of polymer materials.According to parts by weight, it successively weighs: 80~100 parts of raw-silastic continuouslies, 20~25 parts of modified fillers, 1~5 part of vulcanizing agent, 2~3 parts of coupling agents, 3~5 parts of fire retardants and 6~15 parts of improved silicas, raw-silastic continuously and coupling agent are mixed in vacuum kneader, and modified filler is sequentially added into vacuum kneader, improved silica and fire retardant, under conditions of temperature is 150~160 DEG C, after 2~4h of vacuum kneading, obtain mixture, mixture is mixed with vulcanizing agent, under conditions of being 180~200 DEG C in temperature after 20~30min of mixing vulcanization, obtain wear-resisting hydrophobic type semiconductor silicon rubber.The wear-resisting hydrophobic type semiconductor silicon rubber of technical solution of the present invention preparation has the characteristics that excellent hydrophobicity and wear-resisting property, has broad prospects in the development of high molecular material technology of preparing industry.
Description
Technical field
The invention discloses a kind of wear-resisting hydrophobic type semiconductor silicon rubber, belong to technical field of polymer materials.
Background technique
Silicon rubber refers to that main chain is alternately made of silicon and oxygen atom, and the rubber there are two organic group is usually connected on silicon atom
Glue.Common silicon rubber is mainly made of the silicon oxygen chain link containing methyl and a small amount of vinyl.Silicon rubber can be improved in the introducing of phenyl
High- and low-temperature resistance performance, the heatproof and oil resistance of silicon rubber then can be improved in the introducing of trifluoro propyl and cyano.Silicon rubber is resistance to low
Temperature is functional, generally remains to work at -55 DEG C.After introducing phenyl, reachable -73 DEG C.The heat resistance of silicon rubber is also very prominent
Out, at 180 DEG C can long-term work, a little higher than 200 DEG C can also bear several weeks or longer time it is still flexible, be instantaneously resistant to 300
DEG C or more high temperature.The good permeability of silicon rubber, OTR oxygen transmission rate are highest in synthetic polymer.In addition, silicon rubber is also
It with physiological inertia, not will lead to the prominent characteristic of blood coagulation, therefore be widely used in medical field.
Silicon rubber divides thermal vulcanization (high temperature vulcanized silica gel HTV), room temperature vulcanized (RTV), and wherein room temperature vulcanized is divided again
Polycondensation reaction type and addition reaction-type.High temperature silicone rubber is mainly for the manufacture of various silastic products, and room temperature silicon rubber is then led
If being used as bonding agent, Embedding Material or mold.Thermal vulcanization dosage is maximum, and thermal vulcanization divides methyl silicone rubber again
(MQ), methyl vinyl silicone rubber (VMQ, dosage and product grade are most), methyl vinyl phenyl silicon rubber PVMQ(are resistance to low
Temperature, radiation hardness), there is also eyeball silicon rubber, fluorine silicone rubber etc..
And traditional semiconductor silicon rubber the shortcomings that can not being further increased there is also hydrophobicity and wear-resisting property, therefore,
How to improve conventional semiconductors silicon rubber hydrophobicity and the shortcomings that wear-resisting property can not further increase, is provided in the hope of exploring to develop
The semiconductor silicon rubber of good comprehensive performance is problem to be solved.
Summary of the invention
The present invention solves the technical problem of: it can not be into for conventional semiconductors silicon rubber hydrophobicity and wear-resisting property
The shortcomings that one step improves, provides a kind of wear-resisting hydrophobic type semiconductor silicon rubber.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of wear-resisting hydrophobic type semiconductor silicon rubber, is made of the raw material of following parts by weight: 80~100 parts of silicon rubber are raw
Glue, 20~25 parts of modified fillers, 1~5 part of vulcanizing agent, 2~3 parts of coupling agents, 3~5 parts of fire retardants；The wear-resisting hydrophobic type is partly led
Body silicon rubber further includes 0.08~0.15 times of raw-silastic continuously quality of improved silica；
The modified filler the preparation method comprises the following steps:
By potassium carbonate, 1.2:4.0~1.5:4.0 is mixed in molar ratio with titanium dioxide, is ground, and calcining obtains pretreatment powder, will
It is polished to pre-process powder, calcines again, discharges, washs drying, obtains mixed-powder, mixed-powder and graphene oxide are pressed
Mass ratio 2:1~4:1 mixing, and 0.1~0.2 times of mixed-powder quality of gallic acid and mixed-powder quality 8~10 is added
Times water, after ultrasonic disperse, be stirred to react, filter, it is dry, obtain modified filler；
The preparation method of the improved silica is to mix silica with deionized water 1:250~1:320 in mass ratio,
After ultrasonic disperse, pH to 4.0 is adjusted, silica dispersions is obtained, silica dispersions and silane resin acceptor kh-550 is pressed
Mass ratio 2:1~4:1 mixing after being stirred to react, is filtered, dry, obtains improved silica.
The raw-silastic continuously is methyl vinyl silicon kautschuk, dimethyl silicone rubber raw rubber, methyl phenyl vinyl
Any one in raw-silastic continuously or crude rubber of fluorinated silicone rubber, preferably methyl vinyl silicon kautschuk.
The vulcanizing agent is cumyl peroxide, benzoyl peroxide or peroxidating to any one in toluyl
Kind.
The coupling agent is silane coupling agent KH-560, any in Silane coupling reagent KH-570 or silane resin acceptor kh-550
It is a kind of.
The fire retardant is antimony oxide, any one in magnesium hydroxide or aluminium hydroxide.
The calcination temperature is 800~880 DEG C.
The beneficial effects of the present invention are:
Modified filler and improved silica are added when preparing wear-resisting hydrophobic type semiconductor silicon rubber by the present invention, firstly, modified
Graphene oxide is modified using mixed-powder in filler, and in subsequent processing using gallic acid to graphene oxide
It is restored, on the one hand, after being modified with mixed-powder to graphene oxide, having with lamellar structure in mixed-powder
It is adsorbable in surface of graphene oxide to imitate ingredient, thus the wearability of product can be made to improve after being added in product, on the other hand,
It, can shape between benzene ring building blocks energy and graphene in gallic acid molecule after being restored using gallic acid to graphene oxide
At the pi-conjugated interaction of π-, graphene surface is attracted to as stabilizer, and makes graphene that there is stronger elecrtonegativity, in turn
It is uniformly distributed in modified filler in product, further increases the wearability of product, secondly, silica is after modification, it can
In silica surface grafted amino group, to can be uniformly distributed in product after being added in product, propose the wearability of product
Height, and Electrostatic Absorption can occur with modified filler since the silica surface after grafted amino group has positive charge, thus
Modified filler surface forms mastoid process structure, and then forms nano projection in product surface, further increases the hydrophobicity of product.
Specific embodiment
By potassium carbonate, 1.2:4.0~1.5:4.0 is mixed in grinder in molar ratio with titanium dioxide, after grinding 1~2h,
Powder batch must be pre-processed, after calcining 12~13h under conditions of being 800~850 DEG C in temperature by pretreatment powder batch, is obtained pre-
Powder is handled, after 40~80min of the ground machine grinding of powder will be pre-processed, is forged under conditions of being again 800~850 DEG C in temperature
Burn 10~12h after, discharging, obtain mixed-powder blank, by mixed-powder blank use respectively mass fraction be 8~15% hydrochloric acid and
After deionized water is washed 5~8 times, dry 2~3h under conditions of being 60 DEG C in temperature obtains mixed-powder, by mixed-powder with
Graphene oxide 2:1~4:1 in mass ratio is mixed in beaker, and 0.1~0.2 times of mixed-powder quality is added into beaker
Gallic acid and 8~10 times of mixed-powder quality of water, under conditions of frequency is 45~65kHz, 40~60min of ultrasonic disperse
It afterwards, and in temperature is 85~90 DEG C, under conditions of revolving speed is 300~400r./min, after being stirred to react 3~4h, filtering must be filtered
Cake obtains modified filler under conditions of being 60~70 DEG C in temperature by filter cake after dry 3~4h；By silica and deionized water
1:250~1:320 is mixed in flask in mass ratio, 10~30min of ultrasonic disperse under conditions of frequency is 50~60kHz
Afterwards, the pH to 4.0 that material in flask is adjusted with the glacial acetic acid that mass fraction is 8~12%, obtains silica dispersions, by dioxy
SiClx dispersion liquid is mixed with silane resin acceptor kh-550 2:1~4:1 in mass ratio, and temperature is added in control silane resin acceptor kh-550
It is 80~85 DEG C, after safety to be mixed, is 35~45 DEG C in temperature, under conditions of revolving speed is 300~400r/min, is stirred to react
After 4~5h, filtering obtains improved silica blank, does under conditions of being 70~85 DEG C in temperature by improved silica blank
After dry 1~2h, improved silica is obtained；According to parts by weight, successively weigh: 80~100 parts of raw-silastic continuouslies, 20~25 parts change
Property filler, 1~5 part of vulcanizing agent, 2~3 parts of coupling agents, 3~5 parts of fire retardants and 6~15 parts of improved silicas are raw by silicon rubber
Glue and coupling agent are mixed in vacuum kneader, and modified filler is sequentially added into vacuum kneader, improved silica and
Fire retardant after 2~4h of vacuum kneading, obtains mixture, mixture and vulcanizing agent is mixed under conditions of temperature is 150~160 DEG C
It closes, under conditions of being 180~200 DEG C in temperature after 20~30min of mixing vulcanization, obtains wear-resisting hydrophobic type semiconductor silicon rubber.Institute
Stating raw-silastic continuously is methyl vinyl silicon kautschuk, dimethyl silicone rubber raw rubber, methyl phenyl vinyl silicone rubber raw rubber
Or any one in crude rubber of fluorinated silicone rubber, preferably methyl vinyl silicon kautschuk.The vulcanizing agent is peroxidating diisopropyl
Benzene, benzoyl peroxide or peroxidating are to any one in toluyl.The coupling agent is silane coupling agent KH-560, silicon
Any one in alkane coupling agent kh-570 or silane resin acceptor kh-550.The fire retardant be antimony oxide, magnesium hydroxide or
Any one in aluminium hydroxide.The calcination temperature is 800~880 DEG C.
By potassium carbonate, 1.5:4.0 is mixed in grinder in molar ratio with titanium dioxide, after grinding 2h, obtains pretreatment powder
Blank obtains pretreatment powder, will pre-process powder after calcining 13h under conditions of being 850 DEG C in temperature by pretreatment powder batch
After ground machine grinding 80min, after calcining 12h under conditions of being again 850 DEG C in temperature, discharging obtains mixed-powder blank, will
After mixed-powder blank uses the hydrochloric acid that mass fraction is 15% and deionized water to wash 8 times respectively, the condition for being 60 DEG C in temperature
Lower dry 3h, obtains mixed-powder, mixed-powder and graphene oxide 4:1 in mass ratio is mixed in beaker, and into beaker
0.2 times of mixed-powder quality of gallic acid and 10 times of mixed-powder quality of water is added, under conditions of frequency is 65kHz,
It after ultrasonic disperse 60min, and is 90 DEG C in temperature, under conditions of revolving speed is 400r./min, after being stirred to react 4h, filtering must be filtered
Cake obtains modified filler under conditions of being 70 DEG C in temperature by filter cake after dry 4h；In mass ratio by silica and deionized water
1:320 is mixed in flask, under conditions of frequency is 60kHz after ultrasonic disperse 30min, the ice vinegar for being 12% with mass fraction
Acid adjusts the pH to 4.0 of material in flask, silica dispersions is obtained, by silica dispersions and silane resin acceptor kh-550
The mixing of 4:1 in mass ratio, it is 85 DEG C, after safety to be mixed that temperature, which is added, in control silane resin acceptor kh-550, in temperature be 45 DEG C,
Under conditions of revolving speed is 400r/min, after being stirred to react 5h, filtering obtains improved silica blank, by improved silica base
Expect be 85 DEG C in temperature under conditions of after dry 2h, obtain improved silica；According to parts by weight, it successively weighs: 100 parts of silicon rubbers
Glue raw rubber, 25 parts of modified fillers, 5 parts of vulcanizing agents, 3 parts of coupling agents, 5 parts of fire retardants and 15 parts of improved silicas, by silicon rubber
Raw rubber and coupling agent are mixed in vacuum kneader, and modified filler is sequentially added into vacuum kneader, improved silica
And fire retardant after vacuum kneading 4h, obtains mixture, mixture is mixed with vulcanizing agent under conditions of temperature is 160 DEG C, in
Under conditions of temperature is 200 DEG C after mixing vulcanization 30min, wear-resisting hydrophobic type semiconductor silicon rubber is obtained.The raw-silastic continuously is
Methyl vinyl silicon kautschuk.The vulcanizing agent is cumyl peroxide.The coupling agent is silane coupling agent KH-560.
The fire retardant is antimony oxide.The calcination temperature is 880 DEG C.
By potassium carbonate, 1.5:4.0 is mixed in grinder in molar ratio with titanium dioxide, after grinding 2h, obtains pretreatment powder
Blank obtains pretreatment powder, will pre-process powder after calcining 13h under conditions of being 850 DEG C in temperature by pretreatment powder batch
After ground machine grinding 80min, after calcining 12h under conditions of being again 850 DEG C in temperature, discharging obtains mixed-powder blank, will
After mixed-powder blank uses the hydrochloric acid that mass fraction is 15% and deionized water to wash 8 times respectively, the condition for being 60 DEG C in temperature
Lower dry 3h, obtains mixed-powder, mixed-powder and graphene oxide 4:1 in mass ratio is mixed in beaker, and into beaker
0.2 times of mixed-powder quality of gallic acid and 10 times of mixed-powder quality of water is added, under conditions of frequency is 65kHz,
It after ultrasonic disperse 60min, and is 90 DEG C in temperature, under conditions of revolving speed is 400r./min, after being stirred to react 4h, filtering must be filtered
Cake obtains modified filler under conditions of being 70 DEG C in temperature by filter cake after dry 4h；According to parts by weight, it successively weighs: 100 parts
Raw-silastic continuously, 25 parts of modified fillers, 5 parts of vulcanizing agents, 3 parts of coupling agents, 5 parts of fire retardants and 15 parts of silica, by silicon rubber
Raw rubber and coupling agent are mixed in vacuum kneader, and modified filler is sequentially added into vacuum kneader, silica and resistance
Agent is fired, under conditions of temperature is 160 DEG C, after vacuum kneading 4h, mixture is obtained, mixture is mixed with vulcanizing agent, in temperature
Under conditions of being 200 DEG C after mixing vulcanization 30min, wear-resisting hydrophobic type semiconductor silicon rubber is obtained.The raw-silastic continuously is methyl
Vinyl silicon kautschuk.The vulcanizing agent is cumyl peroxide.The coupling agent is silane coupling agent KH-560.It is described
Fire retardant is antimony oxide.The calcination temperature is 880 DEG C.
Silica and deionized water 1:320 in mass ratio are mixed in flask, surpassed under conditions of frequency is 60kHz
After sound disperses 30min, the pH to 4.0 of material in flask is adjusted with the glacial acetic acid that mass fraction is 12%, obtains silica dispersion
Liquid mixes silica dispersions with silane resin acceptor kh-550 4:1 in mass ratio, and control silane resin acceptor kh-550 is added
Temperature is 85 DEG C, after safety to be mixed, in temperature be 45 DEG C, under conditions of revolving speed is 400r/min, after being stirred to react 5h, mistake
Filter, obtains improved silica blank, under conditions of being 85 DEG C in temperature by improved silica blank after dry 2h, must be modified two
Silica；According to parts by weight, it successively weighs: 100 parts of raw-silastic continuouslies, 25 parts of fillers, 5 parts of vulcanizing agents, 3 parts of coupling agents, 5 parts
Raw-silastic continuously and coupling agent are mixed in vacuum kneader by fire retardant and 15 parts of improved silicas, and to vacuum kneading
Filler, improved silica and fire retardant are sequentially added in machine, under conditions of temperature is 160 DEG C, after vacuum kneading 4h, are obtained mixed
Material is closed, mixture is mixed with vulcanizing agent, under conditions of being 200 DEG C in temperature after mixing vulcanization 30min, obtains wear-resisting hydrophobic type half
Conductor silicon rubber.The raw-silastic continuously is methyl vinyl silicon kautschuk.The vulcanizing agent is cumyl peroxide.Institute
Stating coupling agent is silane coupling agent KH-560.The fire retardant is antimony oxide.The calcination temperature is 880 DEG C.
By potassium carbonate, 1.5:4.0 is mixed in grinder in molar ratio with titanium dioxide, after grinding 2h, obtains pretreatment powder
Blank obtains pretreatment powder, will pre-process powder after calcining 13h under conditions of being 850 DEG C in temperature by pretreatment powder batch
After ground machine grinding 80min, after calcining 12h under conditions of being again 850 DEG C in temperature, discharging obtains mixed-powder blank, will
After mixed-powder blank uses the hydrochloric acid that mass fraction is 15% and deionized water to wash 8 times respectively, the condition for being 60 DEG C in temperature
Lower dry 3h, obtains mixed-powder, mixed-powder and graphene oxide 4:1 in mass ratio is mixed in beaker, and into beaker
10 times of mixed-powder quality of water is added, under conditions of frequency is 65kHz, after ultrasonic disperse 60min, and in temperature be 90
DEG C, under conditions of revolving speed is 400r./min, after being stirred to react 4h, filtering obtains filter cake, the condition for being 70 DEG C in temperature by filter cake
After lower dry 4h, modified filler is obtained；Silica and deionized water 1:320 in mass ratio are mixed in flask, are in frequency
Under conditions of 60kHz after ultrasonic disperse 30min, the pH to 4.0 of material in flask is adjusted with the glacial acetic acid that mass fraction is 12%,
Silica dispersions are obtained, silica dispersions are mixed with silane resin acceptor kh-550 4:1 in mass ratio, control silane is even
Joining agent KH-550 temperature is added is 85 DEG C, after safety to be mixed, is 45 DEG C in temperature, under conditions of revolving speed is 400r/min, stirs
After mixing reaction 5h, filtering obtains improved silica blank, dry under conditions of being 85 DEG C in temperature by improved silica blank
After 2h, improved silica is obtained；According to parts by weight, it successively weighs: 100 parts of raw-silastic continuouslies, 25 parts of modified fillers, 5 parts of sulphur
Raw-silastic continuously and coupling agent are mixed in vacuum kneading by agent, 3 parts of coupling agents, 5 parts of fire retardants and 15 parts of improved silicas
In machine, and modified filler is sequentially added into vacuum kneader, improved silica and fire retardant, the item for being 160 DEG C in temperature
Under part, after vacuum kneading 4h, mixture is obtained, mixture is mixed with vulcanizing agent, mixes vulcanization under conditions of being 200 DEG C in temperature
After 30min, wear-resisting hydrophobic type semiconductor silicon rubber is obtained.The raw-silastic continuously is methyl vinyl silicon kautschuk.The sulphur
Agent is cumyl peroxide.The coupling agent is silane coupling agent KH-560.The fire retardant is antimony oxide.It is described
Calcination temperature is 880 DEG C.
Comparative example: the semiconductor silicon rubber of Wuxi chemical materials production Co., Ltd production.
Example 1 to the resulting wear-resisting hydrophobic type semiconductor silicon rubber of example 4 and comparative example product are subjected to performance detection, tool
Body detecting method is as follows:
The static contact angle of 10 μ L droplet of coating surface has been observed using contact angle measurement；It is detected according to GB50474 above-mentioned resistance to
The room temperature wearability of rubber milling.
Specific testing result is as shown in table 1:
The wear-resisting hydrophobic type semiconductor silicon rubber performance testing result of table 1
| Detection project | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example |
| Water contact angle/° | 158.6 | 152.4 | 143.6 | 139.8 | 104.7 |
| Abrasion loss/g | 0.53 | 6.7 | 7.3 | 8.6 | 11.4 |
By 1 testing result of table it is found that the wear-resisting hydrophobic type semiconductor silicon rubber of technical solution of the present invention preparation has excellent dredge
The characteristics of aqueous and wear-resisting property, has broad prospects in the development of high molecular material technology of preparing industry.
Claims (7)
1. a kind of wear-resisting hydrophobic type semiconductor silicon rubber, is made of the raw material of following parts by weight: 80~100 parts of silicon rubber are raw
Glue, 20~25 parts of modified fillers, 1~5 part of vulcanizing agent, 2~3 parts of coupling agents, 3~5 parts of fire retardants；It is characterized in that, described resistance to
Mill hydrophobic type semiconductor silicon rubber further includes 0.08~0.15 times of raw-silastic continuously quality of improved silica；
The modified filler the preparation method comprises the following steps:
By potassium carbonate, 1.2:4.0~1.5:4.0 is mixed in molar ratio with titanium dioxide, is ground, and calcining obtains pretreatment powder, will
It is polished to pre-process powder, calcines again, discharges, washs drying, obtains mixed-powder, mixed-powder and graphene oxide are pressed
Mass ratio 2:1~4:1 mixing, and 0.1~0.2 times of mixed-powder quality of gallic acid and mixed-powder quality 8~10 is added
Times water, after ultrasonic disperse, be stirred to react, filter, it is dry, obtain modified filler.
2. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the modified titanium dioxide
The preparation method of silicon is to mix silica with deionized water 1:250~1:320 in mass ratio, after ultrasonic disperse, adjusts pH
To 4.0, silica dispersions are obtained, silica dispersions and silane resin acceptor kh-550 2:1~4:1 in mass ratio are mixed
It closes, after being stirred to react, filters, it is dry, obtain improved silica.
3. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the raw-silastic continuously
For methyl vinyl silicon kautschuk, dimethyl silicone rubber raw rubber, methyl phenyl vinyl silicone rubber raw rubber or fluorine silicone rubber are raw
Any one in glue, preferably methyl vinyl silicon kautschuk.
4. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the vulcanizing agent was
Diisopropylbenzene (DIPB) is aoxidized, benzoyl peroxide or peroxidating are to any one in toluyl.
5. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the coupling agent is silicon
Alkane coupling agent KH-560, any one in Silane coupling reagent KH-570 or silane resin acceptor kh-550.
6. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the fire retardant is three
Aoxidize two antimony, any one in magnesium hydroxide or aluminium hydroxide.
7. a kind of wear-resisting hydrophobic type semiconductor silicon rubber according to claim 1, it is characterised in that: the calcination temperature is
800~880 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046875.XA CN109135298A (en) | 2018-09-08 | 2018-09-08 | A kind of wear-resisting hydrophobic type semiconductor silicon rubber |
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| CN110172283A (en) * | 2019-05-30 | 2019-08-27 | 黄京合 | A kind of high transparency wear-resisting type floor paint |
| CN110183934A (en) * | 2019-05-30 | 2019-08-30 | 陈理抗 | A kind of wear-resisting type bi-component graphene anticorrosive paint |
| CN112538090A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | Modified silicon dioxide for multiphase composite foam extinguishing agent, preparation method of modified silicon dioxide and multiphase composite foam extinguishing agent |
| CN117511009A (en) * | 2023-12-22 | 2024-02-06 | 江苏斯诺达科技有限公司 | High-performance thermo-oxidative aging resistant natural rubber and preparation process thereof |
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| CN110172283A (en) * | 2019-05-30 | 2019-08-27 | 黄京合 | A kind of high transparency wear-resisting type floor paint |
| CN110183934A (en) * | 2019-05-30 | 2019-08-30 | 陈理抗 | A kind of wear-resisting type bi-component graphene anticorrosive paint |
| CN112538090A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工股份有限公司 | Modified silicon dioxide for multiphase composite foam extinguishing agent, preparation method of modified silicon dioxide and multiphase composite foam extinguishing agent |
| CN117511009A (en) * | 2023-12-22 | 2024-02-06 | 江苏斯诺达科技有限公司 | High-performance thermo-oxidative aging resistant natural rubber and preparation process thereof |
| CN117511009B (en) * | 2023-12-22 | 2024-08-27 | 江苏斯诺达科技有限公司 | High-performance thermo-oxidative aging resistant natural rubber and preparation process thereof |
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Application publication date: 20190104 |