CN108129842A - A kind of silica gel and preparation method thereof - Google Patents
A kind of silica gel and preparation method thereof Download PDFInfo
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- CN108129842A CN108129842A CN201711457741.2A CN201711457741A CN108129842A CN 108129842 A CN108129842 A CN 108129842A CN 201711457741 A CN201711457741 A CN 201711457741A CN 108129842 A CN108129842 A CN 108129842A
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/001—Macromolecular compounds containing organic and inorganic sequences, e.g. organic polymers grafted onto silica
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- 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
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- 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
- C08K2003/327—Aluminium phosphate
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses a kind of silica gel and preparation method thereof, the silica gel, including following raw material：Methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin, nitrile rubber, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, neopelex, dibutyl tin laurate, trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil, stearic acid, maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane coupling agent KH 550, the silica gel is by preparing major ingredient, prepare modified materials, then by major ingredient, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, it is heated after neopelex and dibutyl tin laurate mixing, be kneaded discharging and etc. made of.The silica gel of the present invention has excellent antibacterial and UV resistant performance.
Description
【Technical field】
The invention belongs to silica gel preparing technical fields, and in particular to a kind of silica gel and preparation method thereof.
【Background technology】
Silica gel chemical property stablize, do not react except highly basic, hydrofluoric acid in addition to any substance, the chemical composition of silica gel with
Physical arrangement determines the characteristics of its many other same type of material is difficult to replace, and such as absorption property height, thermal stability is good, chemical
Stable and higher mechanical strength of property etc..
A kind of Chinese patent application document " silica gel and preparation method thereof (application publication number:CN103436032A it) " discloses
A kind of silica gel, raw material include by mass percentage：60-80% methyl vinyl silicone rubbers, 10-23% white carbons, 0.05-
1.48% hydroxy silicon oil, 6-18% methyl-silicone oils, 0.1-1% stearic acid.The invention also discloses the preparation sides of this kind of silicon rubber
Method includes the following steps：Methyl vinyl silicone rubber, white carbon, hydroxy silicon oil, methyl-silicone oil and hard are weighed by mass percentage
Resin acid, input kneader are kneaded, temperature are risen to 160-180 DEG C, cools the temperature to 120-160 DEG C, constant temperature 30-50min, vacuum
20-40min, discharging, obtains the silica gel, and in the invention, silica gel environmental protection, good physical performance is tear-resistant, tensile strength and
It is all larger to pull elongation.But its antibacterial and UV resistant performance the needs of can not but meeting in actual use.
【Invention content】
The present invention provides a kind of silica gel and preparation method thereof, to solve Chinese patent application document " a kind of silica gel and its system
Preparation Method (application publication number:CN103436032A silica gel antibacterial disclosed in) " and the insufficient problem of UV resistant performance.
For solution more than technical problem, the present invention uses following technical scheme:
A kind of silica gel, including following raw material：Methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low-density
Polyethylene, coumarone indene resin, nitrile rubber, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, detergent alkylate sulphur
Sour sodium, dibutyl tin laurate, trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil, stearic acid, maleic anhydride, peroxidating
Diisopropylbenzene (DIPB), polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550；
The maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane are even
The weight ratio for joining agent KH-550 is (15-25):(1-2):(2-5):(6-9):(2-6):(1-2).
Further, the maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, shell gather
Sugared, silane resin acceptor kh-550 weight ratio is 18.6:1.3:4.3:7.8:5.5:1.4.
Further, as unit of parts by weight, including following raw material:20-50 parts of methyl vinyl silicone rubber, EPDM
8-16 parts of rubber, 4-8 parts of tetrapropanate fluorine rubber, 3-5 parts of low density polyethylene (LDPE), 2-5 parts of coumarone indene resin, 1-4 parts of nitrile rubber, neighbour
3-6 parts of dioctyl phthalate, 4-8 parts of polyphosphoric acids aluminium, 3-6 parts of ammonium polyphosphate, 2-5 parts of neopelex, February
1-5 parts of dilaurylate, 3-6 parts of trbasic zinc phosphate, 2-4 parts of white carbon, 1-3 parts of hydroxy silicon oil, 3-6 parts of methyl-silicone oil, stearic acid
4-8 parts, 15-25 parts of maleic anhydride, 1-2 parts of cumyl peroxide, 2-5 parts of polyvinylpyrrolidone, nano-titanium dioxide 6-9
Part, 2-6 parts of chitosan, 1-2 parts of silane resin acceptor kh-550.
The present invention also provides a kind of preparation methods of silica gel, include the following steps：
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin
140-160 DEG C is warming up to nitrile rubber, 20-40min is kept the temperature, is subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl silicon
Oil and stearic acid are uniformly mixed, and are continuously heating to 180-220 DEG C, keep the temperature 5-15min, and 1- is stirred in 3500-5500r/min rotating speeds
2h is cooled to room temperature to obtain base-material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 120-140 DEG C, kept the temperature 20-40min, connect
It addition polyvinylpyrrolidone, nano-titanium dioxide and chitosan to be uniformly mixed, 1-2h is stirred in 650-850r/min rotating speeds,
Then 60-80 DEG C is cooled to, keeps the temperature 5-15min, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 90-110
DEG C, 30-50min is kept the temperature, is cooled to room temperature to obtain modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, dodecyl benzene sulfonic acid
Sodium and dibutyl tin laurate are uniformly mixed, and are warming up to 110-120 DEG C, are kept the temperature 1-2h, are then placed in kneading machine and are kneaded, in
130-140 DEG C, 20-40min is kneaded, then vacuum 15-35min, discharging is cooled to room temperature to obtain silica gel.
The invention has the advantages that:(1) by the data of embodiment 1-3 and comparative example 8 as it can be seen that using embodiment 1-
The antibacterial and UV resistant performance of 3 silica gel significantly improve；Simultaneously by the data of embodiment 1-3 as it can be seen that embodiment 1 is optimal implementation
Example.
(2) by embodiment 1 and the data of comparative example 1-7 as it can be seen that maleic anhydride, cumyl peroxide, polyvinyl pyrrole
Alkanone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550 play synergistic effect in silica gel is prepared, and collaboration improves
The antibacterial of silica gel and UV resistant performance, this is:With maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nanometer
Titanium dioxide, chitosan and silane resin acceptor kh-550 are as modified system, and wherein maleic anhydride is unsaturated-resin, surface
Containing abundant hydroxyl, there is excellent antibacterial UV resistant performance, cumyl peroxide opens not as initiator
The double bond of saturated polyester resin, due to nano-titanium dioxide and the hydroxyl on chitosan surface, in connecing for silane coupling agent KH-560
Under branch effect, realize the double bond after unsaturated polyester resin is opened and tied with the grafting of the hydroxyl of nano-titanium dioxide and chitosan
Close, realize nano-titanium dioxide and Chitosan-coated on the surface of unsaturated polyester resin, be utilized nano-titanium dioxide and
The antibacterial UV resistant performance of chitosan, effectively increases the antibacterial of silica gel of the present invention and UV resistant performance, wherein polyethylene
Pyrrolidones has excellent anti-microbial property, is a kind of non-ionic macromolecule compound, is introduced into modified system, and in silicon
It under the action of alkane coupling agent KH-550, realizes and the combination of major ingredient maleic anhydride, effectively increases the antibiotic property of silica gel of the present invention
Energy.By controlling maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane even
The weight ratio for joining agent KH-550 is (15-25):(1-2):(2-5):(6-9):(2-6):(1-2).Using maleic anhydride as modification
The main material of system, the grafting attachment for nano-titanium dioxide and chitosan provide sufficient attachment site, ensure that
Using under the modification grafting agent effect of few silane resin acceptor kh-550, nano-titanium dioxide and chitosan can be efficiently grafted
It is combined onto maleic anhydride, and with major ingredient in silica gel of the present invention formula, effectively increases the UV resistant of silica gel of the present invention and resist
Bacterium performance, and the waste of modified materials is avoided, cost is reduced, wherein polyvinylpyrrolidone is auxiliary as antibacterial auxiliary enhancing
Material on the basis of guarantee nano-titanium dioxide and chitosan are fully grafted to maleic anhydride, introduce polyvinylpyrrolidone and exists
Under the action of silane resin acceptor kh-550, the anti-microbial property of silica gel of the present invention can be further improved.
【Specific embodiment】
It for ease of more fully understanding the present invention, is illustrated by following instance, these examples belong to the protection of the present invention
Range, but do not limit the scope of the invention.
In embodiment, silica gel, as unit of parts by weight, including following raw material:20-50 parts of methyl vinyl silicone rubber,
8-16 parts of ethylene propylene diene rubber, 4-8 parts of tetrapropanate fluorine rubber, 3-5 parts of low density polyethylene (LDPE), 2-5 parts of coumarone indene resin, nitrile rubber
1-4 parts, 3-6 parts of dioctyl phthalate, 4-8 parts of polyphosphoric acids aluminium, 3-6 parts of ammonium polyphosphate, neopelex 2-5
Part, 1-5 parts of dibutyl tin laurate, 3-6 parts of trbasic zinc phosphate, 2-4 parts of white carbon, 1-3 parts of hydroxy silicon oil, 3-6 parts of methyl-silicone oil,
4-8 parts of stearic acid, 15-25 parts of maleic anhydride, 1-2 parts of cumyl peroxide, 2-5 parts of polyvinylpyrrolidone, nano-silica
Change 6-9 parts of titanium, 2-6 parts of chitosan, 1-2 parts of silane resin acceptor kh-550.
The preparation method of the silica gel, includes the following steps:
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin
140-160 DEG C is warming up to nitrile rubber, 20-40min is kept the temperature, is subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl silicon
Oil and stearic acid are uniformly mixed, and are continuously heating to 180-220 DEG C, keep the temperature 5-15min, and 1- is stirred in 3500-5500r/min rotating speeds
2h is cooled to room temperature to obtain base-material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 120-140 DEG C, kept the temperature 20-40min, connect
It addition polyvinylpyrrolidone, nano-titanium dioxide and chitosan to be uniformly mixed, 1-2h is stirred in 650-850r/min rotating speeds,
Then 60-80 DEG C is cooled to, keeps the temperature 5-15min, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 90-110
DEG C, 30-50min is kept the temperature, is cooled to room temperature to obtain modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, dodecyl benzene sulfonic acid
Sodium and dibutyl tin laurate are uniformly mixed, and are warming up to 110-120 DEG C, are kept the temperature 1-2h, are then placed in kneading machine and are kneaded, in
130-140 DEG C, 20-40min is kneaded, then vacuum 15-35min, discharging is cooled to room temperature to obtain silica gel.
Below by more specific embodiment, the present invention will be described.
Embodiment 1
A kind of silica gel, as unit of parts by weight, including following raw material:36.8 parts of methyl vinyl silicone rubber, EPDM
9.7 parts of rubber, 6.4 parts of tetrapropanate fluorine rubber, 3.8 parts of low density polyethylene (LDPE), 4.2 parts of coumarone indene resin, 2.6 parts of nitrile rubber, neighbour
4.2 parts of dioctyl phthalate, 7.4 parts of polyphosphoric acids aluminium, 5.3 parts of ammonium polyphosphate, 3.4 parts of neopelex, February
4.2 parts of dilaurylate, 4.1 parts of trbasic zinc phosphate, 3.8 parts of white carbon, 2.6 parts of hydroxy silicon oil, 4.7 parts of methyl-silicone oil, stearic acid
5.6 parts, 18.6 parts of maleic anhydride, 1.3 parts of cumyl peroxide, 4.3 parts of polyvinylpyrrolidone, nano-titanium dioxide 7.8
Part, 5.5 parts of chitosan, 1.4 parts of silane resin acceptor kh-550.
The preparation method of the silica gel, includes the following steps:
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin
142 DEG C are warming up to nitrile rubber, 29min is kept the temperature, is subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil and tristearin
Acid is uniformly mixed, and is continuously heating to 197 DEG C, keeps the temperature 8min, is stirred 1.3h in 4785r/min rotating speeds, is cooled to room temperature to obtain base
Material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 134 DEG C, kept the temperature 34min, be subsequently added into
Polyvinylpyrrolidone, nano-titanium dioxide and chitosan are uniformly mixed, and are stirred 1.4h in 765r/min rotating speeds, are then cooled to
74 DEG C, 8.6min is kept the temperature, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 96 DEG C, keep the temperature 41min, be cooled to
Room temperature obtains modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, dodecyl benzene sulfonic acid
Sodium and dibutyl tin laurate are uniformly mixed, and are warming up to 114 DEG C, are kept the temperature 1.6h, are then placed in kneading machine and are kneaded, in 134
DEG C, 32min is kneaded, then vacuum 27min, discharging is cooled to room temperature to obtain silica gel.
Embodiment 2
A kind of silica gel, as unit of parts by weight, including following raw material:20 parts of methyl vinyl silicone rubber, ethylene-propylene-diene monomer
16 parts of glue, 4 parts of tetrapropanate fluorine rubber, 5 parts of low density polyethylene (LDPE), 2 parts of coumarone indene resin, 4 parts of nitrile rubber, phthalic acid two are pungent
3 parts of ester, 8 parts of polyphosphoric acids aluminium, 3 parts of ammonium polyphosphate, 5 parts of neopelex, 1 part of dibutyl tin laurate, phosphoric acid
6 parts of zinc, 2 parts of white carbon, 3 parts of hydroxy silicon oil, 3 parts of methyl-silicone oil, 8 parts of stearic acid, 15 parts of maleic anhydride, cumyl peroxide
2 parts, 2 parts of polyvinylpyrrolidone, 9 parts of nano-titanium dioxide, 2 parts of chitosan, 2 parts of silane resin acceptor kh-550.
The preparation method of the silica gel, includes the following steps:
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin
140 DEG C are warming up to nitrile rubber, 40min is kept the temperature, is subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil and tristearin
Acid is uniformly mixed, and is continuously heating to 180 DEG C, keeps the temperature 15min, is stirred 2h in 3500r/min rotating speeds, is cooled to room temperature to obtain base
Material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 120 DEG C, kept the temperature 40min, be subsequently added into
Polyvinylpyrrolidone, nano-titanium dioxide and chitosan are uniformly mixed, and are stirred 2h in 650r/min rotating speeds, are then cooled to 60
DEG C, 15min is kept the temperature, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 90 DEG C, keep the temperature 50min, be cooled to room temperature
Obtain modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, dodecyl benzene sulfonic acid
Sodium and dibutyl tin laurate are uniformly mixed, and are warming up to 110 DEG C, are kept the temperature 2h, are then placed in kneading machine and are kneaded, in 130 DEG C,
40min is kneaded, then vacuum 15min, discharging is cooled to room temperature to obtain silica gel.
Embodiment 3
A kind of silica gel, as unit of parts by weight, including following raw material:50 parts of methyl vinyl silicone rubber, ethylene-propylene-diene monomer
8 parts of glue, 8 parts of tetrapropanate fluorine rubber, 3 parts of low density polyethylene (LDPE), 5 parts of coumarone indene resin, 1 part of nitrile rubber, phthalic acid two are pungent
6 parts of ester, 4 parts of polyphosphoric acids aluminium, 6 parts of ammonium polyphosphate, 2 parts of neopelex, 5 parts of dibutyl tin laurate, phosphoric acid
3 parts of zinc, 4 parts of white carbon, 1 part of hydroxy silicon oil, 6 parts of methyl-silicone oil, 4 parts of stearic acid, 25 parts of maleic anhydride, cumyl peroxide
1 part, 5 parts of polyvinylpyrrolidone, 6 parts of nano-titanium dioxide, 6 parts of chitosan, 1 part of silane resin acceptor kh-550.
The preparation method of the silica gel, includes the following steps:
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin
160 DEG C are warming up to nitrile rubber, 20min is kept the temperature, is subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil and tristearin
Acid is uniformly mixed, and is continuously heating to 220 DEG C, keeps the temperature 5min, is stirred 1h in 5500r/min rotating speeds, is cooled to room temperature to obtain base-material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 140 DEG C, kept the temperature 20min, be subsequently added into
Polyvinylpyrrolidone, nano-titanium dioxide and chitosan are uniformly mixed, and are stirred 1h in 850r/min rotating speeds, are then cooled to 80
DEG C, 5min is kept the temperature, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 110 DEG C, keep the temperature 30min, be cooled to room temperature
Obtain modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, dodecyl benzene sulfonic acid
Sodium and dibutyl tin laurate are uniformly mixed, and are warming up to 120 DEG C, are kept the temperature 1h, are then placed in kneading machine and are kneaded, in 140 DEG C,
20min is kneaded, then vacuum 35min, discharging is cooled to room temperature to obtain silica gel.
Comparative example 1
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare lack in the raw material of silica gel maleic anhydride,
Cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550.
Comparative example 2
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare in the raw material of silica gel and lack maleic anhydride.
Comparative example 3
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare in the raw material of silica gel and lack peroxidating two
Isopropylbenzene.
Comparative example 4
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare in the raw material of silica gel and lack polyethylene pyrrole
Pyrrolidone.
Comparative example 5
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare in the raw material of silica gel and lack nano-silica
Change titanium.
Comparative example 6
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare in the raw material of silica gel and lack chitosan.
Comparative example 7
It is essentially identical with the preparation process of embodiment 1, have only unlike prepare lack in the raw material of silica gel it is silane coupled
Agent KH-550.
Comparative example 8
Using a kind of Chinese patent application document " silica gel and preparation method thereof (application publication number:CN103436032A it is) " real
The technique for applying a 1-4 prepares silica gel.
Indices detection, obtained testing result such as following table are carried out to the silica gel of embodiment 1-3 and comparative example 1-8:
As seen from the above table:(1) by the data of embodiment 1-3 and comparative example 8 as it can be seen that antibacterial using embodiment 1-3 silica gel
It is significantly improved with UV resistant performance；Simultaneously by the data of embodiment 1-3 as it can be seen that embodiment 1 is optimum embodiment.
(2) by embodiment 1 and the data of comparative example 1-7 as it can be seen that maleic anhydride, cumyl peroxide, polyvinyl pyrrole
Alkanone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550 play synergistic effect in silica gel is prepared, and collaboration improves
The antibacterial of silica gel and UV resistant performance, this is:With maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nanometer
Titanium dioxide, chitosan and silane resin acceptor kh-550 are as modified system, and wherein maleic anhydride is unsaturated-resin, surface
Containing abundant hydroxyl, there is excellent antibacterial UV resistant performance, cumyl peroxide opens not as initiator
The double bond of saturated polyester resin, due to nano-titanium dioxide and the hydroxyl on chitosan surface, in connecing for silane coupling agent KH-560
Under branch effect, realize the double bond after unsaturated polyester resin is opened and tied with the grafting of the hydroxyl of nano-titanium dioxide and chitosan
Close, realize nano-titanium dioxide and Chitosan-coated on the surface of unsaturated polyester resin, be utilized nano-titanium dioxide and
The antibacterial UV resistant performance of chitosan, effectively increases the antibacterial of silica gel of the present invention and UV resistant performance, wherein polyethylene
Pyrrolidones has excellent anti-microbial property, is a kind of non-ionic macromolecule compound, is introduced into modified system, and in silicon
It under the action of alkane coupling agent KH-550, realizes and the combination of major ingredient maleic anhydride, effectively increases the antibiotic property of silica gel of the present invention
Energy.By controlling maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane even
The weight ratio for joining agent KH-550 is (15-25):(1-2):(2-5):(6-9):(2-6):(1-2).Using maleic anhydride as modification
The main material of system, the grafting attachment for nano-titanium dioxide and chitosan provide sufficient attachment site, ensure that
Using under the modification grafting agent effect of few silane resin acceptor kh-550, nano-titanium dioxide and chitosan can be efficiently grafted
It is combined onto maleic anhydride, and with major ingredient in silica gel of the present invention formula, effectively increases the UV resistant of silica gel of the present invention and resist
Bacterium performance, and the waste of modified materials is avoided, cost is reduced, wherein polyvinylpyrrolidone is auxiliary as antibacterial auxiliary enhancing
Material on the basis of guarantee nano-titanium dioxide and chitosan are fully grafted to maleic anhydride, introduce polyvinylpyrrolidone and exists
Under the action of silane resin acceptor kh-550, the anti-microbial property of silica gel of the present invention can be further improved.
More than content is it cannot be assumed that present invention specific implementation is confined to these explanations, for the technical field of the invention
Those of ordinary skill for, under the premise of present inventive concept is not departed from, several simple deduction or replace can also be made, all should
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (4)
1. a kind of silica gel, which is characterized in that including following raw material：Methyl vinyl silicone rubber, ethylene propylene diene rubber, 4 third fluorine rubbers
Glue, low density polyethylene (LDPE), coumarone indene resin, nitrile rubber, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, 12
Sodium alkyl benzene sulfonate, dibutyl tin laurate, trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil, stearic acid, maleic acid
Acid anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550；
The maleic anhydride, cumyl peroxide, polyvinylpyrrolidone, nano-titanium dioxide, chitosan, silane coupling agent
The weight ratio of KH-550 is (15-25):(1-2):(2-5):(6-9):(2-6):(1-2).
2. silica gel according to claim 1, which is characterized in that the maleic anhydride, cumyl peroxide, polyethylene pyrrole
Pyrrolidone, nano-titanium dioxide, chitosan, silane resin acceptor kh-550 weight ratio be 18.6:1.3:4.3:7.8:5.5:
1.4。
3. silica gel according to claim 1, which is characterized in that as unit of parts by weight, including following raw material:Ethylene methacrylic
20-50 parts of base silicon rubber, 8-16 parts of ethylene propylene diene rubber, 4-8 parts of tetrapropanate fluorine rubber, 3-5 parts of low density polyethylene (LDPE), coumarone tree
2-5 parts of fat, 1-4 parts of nitrile rubber, 3-6 parts of dioctyl phthalate, 4-8 parts of polyphosphoric acids aluminium, 3-6 parts of ammonium polyphosphate, ten
2-5 parts of dialkyl benzene sulfonic acids sodium, 1-5 parts of dibutyl tin laurate, 3-6 parts of trbasic zinc phosphate, 2-4 parts of white carbon, hydroxy silicon oil 1-3
Part, 3-6 parts of methyl-silicone oil, 4-8 parts of stearic acid, 15-25 parts of maleic anhydride, 1-2 parts of cumyl peroxide, polyvinylpyrrolidine
2-5 parts of ketone, 6-9 parts of nano-titanium dioxide, 2-6 parts of chitosan, 1-2 parts of silane resin acceptor kh-550.
4. a kind of preparation method according to claim 1-3 any one of them silica gel, which is characterized in that include the following steps：
S1, by methyl vinyl silicone rubber, ethylene propylene diene rubber, tetrapropanate fluorine rubber, low density polyethylene (LDPE), coumarone indene resin and fourth
Nitrile rubber is warming up to 140-160 DEG C, keeps the temperature 20-40min, be subsequently added into trbasic zinc phosphate, white carbon, hydroxy silicon oil, methyl-silicone oil and
Stearic acid is uniformly mixed, and is continuously heating to 180-220 DEG C, keeps the temperature 5-15min, and 1-2h is stirred in 3500-5500r/min rotating speeds,
It is cooled to room temperature to obtain base-material；
S2, maleic anhydride and cumyl peroxide are uniformly mixed, are warming up to 120-140 DEG C, keep the temperature 20-40min, then added
Enter polyvinylpyrrolidone, nano-titanium dioxide and chitosan to be uniformly mixed, stir 1-2h in 650-850r/min rotating speeds, then
60-80 DEG C is cooled to, keeps the temperature 5-15min, silane resin acceptor kh-550 is then added in and is uniformly mixed, be warming up to 90-110 DEG C, protect
Warm 30-50min is cooled to room temperature to obtain modified materials；
S3, by base-material, modified materials, dioctyl phthalate, polyphosphoric acids aluminium, ammonium polyphosphate, neopelex and
Dibutyl tin laurate is uniformly mixed, and is warming up to 110-120 DEG C, is kept the temperature 1-2h, is then placed in kneading machine and is kneaded, in 130-
140 DEG C, 20-40min is kneaded, then vacuum 15-35min, discharging is cooled to room temperature to obtain silica gel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280391A (en) * | 2018-09-03 | 2019-01-29 | 苏州歌诗夫新材料有限公司 | A kind of high-low temperature resistant, high-intensitive silica gel rubber compound and preparation method thereof |
| CN111394881A (en) * | 2020-04-15 | 2020-07-10 | 巢湖市翔宇渔具有限公司 | Preparation method of silica gel reinforced anti-aging fishing net |
| CN112238585A (en) * | 2020-09-03 | 2021-01-19 | 嘉兴捷翔洁具制品有限公司 | Production process of anti-aging window wiper |
| CN117070186A (en) * | 2023-10-18 | 2023-11-17 | 山东景茂新材料有限公司 | Preparation method of alcohol type silicone sealant |
| WO2024060459A1 (en) * | 2022-09-21 | 2024-03-28 | 武汉联影医疗科技有限公司 | Modified silicone rubber and preparation method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001098154A (en) * | 1999-09-30 | 2001-04-10 | Shin Etsu Chem Co Ltd | Antibacterial and mildewproofing organopolysiloxane composition |
| CN103483607A (en) * | 2013-09-04 | 2014-01-01 | 浙江理工大学 | Preparation method of titanium dioxide/polysiloxane photocatalytic composite film |
| CN106366667A (en) * | 2016-08-29 | 2017-02-01 | 桂林裕天新材料有限公司 | Insulation silicone rubber applied to cold shrink cable accessories and preparation method of insulation silicone rubber |
-
2017
- 2017-12-28 CN CN201711457741.2A patent/CN108129842A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001098154A (en) * | 1999-09-30 | 2001-04-10 | Shin Etsu Chem Co Ltd | Antibacterial and mildewproofing organopolysiloxane composition |
| CN103483607A (en) * | 2013-09-04 | 2014-01-01 | 浙江理工大学 | Preparation method of titanium dioxide/polysiloxane photocatalytic composite film |
| CN106366667A (en) * | 2016-08-29 | 2017-02-01 | 桂林裕天新材料有限公司 | Insulation silicone rubber applied to cold shrink cable accessories and preparation method of insulation silicone rubber |
Non-Patent Citations (4)
| Title |
|---|
| 刘嘉等: "《航空橡胶与密封材料》", 30 November 2011, 国防工业出版社 * |
| 吴世敏等: "《简明精细化工大辞典》", 30 June 1999, 辽宁科学技术出版社 * |
| 周文英等: "《导热高分子材料》", 30 April 2014, 国防工业出版社 * |
| 张流波等: "《医学消毒学最新进展》", 31 December 2015, 人民军医出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280391A (en) * | 2018-09-03 | 2019-01-29 | 苏州歌诗夫新材料有限公司 | A kind of high-low temperature resistant, high-intensitive silica gel rubber compound and preparation method thereof |
| CN111394881A (en) * | 2020-04-15 | 2020-07-10 | 巢湖市翔宇渔具有限公司 | Preparation method of silica gel reinforced anti-aging fishing net |
| CN112238585A (en) * | 2020-09-03 | 2021-01-19 | 嘉兴捷翔洁具制品有限公司 | Production process of anti-aging window wiper |
| WO2024060459A1 (en) * | 2022-09-21 | 2024-03-28 | 武汉联影医疗科技有限公司 | Modified silicone rubber and preparation method therefor |
| CN117070186A (en) * | 2023-10-18 | 2023-11-17 | 山东景茂新材料有限公司 | Preparation method of alcohol type silicone sealant |
| CN117070186B (en) * | 2023-10-18 | 2023-12-26 | 山东景茂新材料有限公司 | Preparation method of alcohol type silicone sealant |
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