CN105694108A - Low-static-electricity explosion-proof insoluble sulfur and production process thereof - Google Patents
Low-static-electricity explosion-proof insoluble sulfur and production process thereof Download PDFInfo
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- CN105694108A CN105694108A CN201610048682.2A CN201610048682A CN105694108A CN 105694108 A CN105694108 A CN 105694108A CN 201610048682 A CN201610048682 A CN 201610048682A CN 105694108 A CN105694108 A CN 105694108A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K3/02—Elements
- C08K3/06—Sulfur
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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
- C08K3/34—Silicon-containing compounds
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
Abstract
The invention provides low-static-electricity explosion-proof insoluble sulfur and a production process thereof and relates to the technical field of rubber product processing aids. The insoluble sulfur is prepared from the following raw materials: ordinary industrial sulfur powder, conductive fibers, a photostabilizer, a vulcanization activator, a dispersant, a coupling agent, an accelerant, talcum powder, zinc stearate and lecithin. The production process comprises the steps of carrying out liquefaction, carrying out polymerization, carrying out quenching, carrying out curing, carrying out crushing, carrying out extracting, carrying out drying and carrying out oil filling. The low-static-electricity explosion-proof insoluble sulfur prepared by the production process is high in quality, has relatively good mechanical properties, fatigue property, aging resistance, low static electricity and explosion-proof property and can be used for improving the aging resistance, low static electricity and explosion-proof property of rubber products when the low-static-electricity explosion-proof insoluble sulfur is applied to the rubber products such as meridian lines, rubber and tires; the operation is safe during production, and the cost is low.
Description
Technical field
The present invention relates to rubber articles processing aid technical field, be specifically related to a kind of explosion-proof insoluble sulfur of low electrostatic and production technology thereof。
Background technology
Insoluble sulfur (InsolubleSulfur), molecular formula: Su, is a kind of nontoxic, flammable yellow powder, because it is gained the name insoluble in Carbon bisulfide。It prepares through common sulfur thermal polymerization, and the number of sulfur atoms on strand, up to more than 108, has viscoelasticity and the molecular weight distribution of high polymer, therefore also referred to as elastic sulfur or polymerised sulphur, belongs to inorganic polymer industrial chemicals。Insoluble sulfur (is called for short IS), for one, there is thermoplastic linear polymeric homopolymer, insoluble sulfur is widely used in the manufacturing of tire and other rubber composite product as senior accelerator and the vulcanizing agent of a kind of rubber industry, in the sizing material that the rubber such as the carcass sizing material of such as tire, buffering sizing material, white sidewall rubber and tyre retreading, sebific duct, adhesive tape and framework material bond, can also be used for, in the sizing material of the rubbers such as cable, rubber roll, oil sealing, rubber overshoes, being also applied in the light-colour rubber goods that sulfur consumption is big simultaneously。Owing to insoluble sulfur can make meridian, steel wire and rubber paste more firmly, effectively prevent sizing material crocking, improve heat-resisting, the anti-wear performance of tire。Therefore, insoluble sulfur is requisite important source material in tire production。
At present, domestic operation in insoluble sulfur produces is felt unwell entirely, relatively costly, second-rate, finds one and has good mechanical property, fatigue behaviour, electrostatic ageing-resistant, low, explosion-proof insoluble sulfur, is always up the key areas of scientific research。
Summary of the invention
(1) solve the technical problem that
Not enough for prior art, the present invention provides a kind of explosion-proof insoluble sulfur of low electrostatic and production technology thereof, production process operates safety, cost is low, quality is good, the rubbers such as meridian, rubber, tire there is good mechanical property, fatigue behaviour, electrostatic ageing-resistant, low, explosion-proof performance, for can improve the electrostatic ageing-resistant, low of rubber, explosion-proof performance。
(2) technical scheme
For realizing object above, the present invention is achieved by the following technical programs:
A kind of explosion-proof insoluble sulfur of low electrostatic, is made up of the raw material of following weight portion: general industry Cosan 80-120 part, conductive fiber 5-10 part, light stabilizer 3-7 part, vulcanizing activator 2-5 part, dispersant 2-5 part, coupling agent 2-5 part, accelerator 2-5 part, Pulvis Talci 6-15 part, zinc stearate 7-12 part, lecithin 6-14 part。
Preferably, the described explosion-proof insoluble sulfur of low electrostatic is made up of the raw material of following weight portion: general industry Cosan 90-110 part, conductive fiber 6-9 part, light stabilizer 4-6 part, vulcanizing activator 3-5 part, dispersant 2-4 part, coupling agent 3-4 part, accelerator 3-5 part, Pulvis Talci 8-13 part, zinc stearate 8-11 part, lecithin 7-12 part。
Preferably, described vulcanizing activator is nano zine oxide。
Preferably, described coupling agent is silane coupler-69, and accelerator is any one in CZ, TMTD, DM or M。
Preferably, described conductive fiber is carbon fiber。
Preferably, described carbon fiber is seriality carbon fiber or chopped fiber。
The production technology of a kind of explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 130-150 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition conductive fiber, coupling agent, vulcanizing activator, zinc stearate stir, and are continuously heating to 260-320 DEG C, are incubated polyreaction 90-110min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured into rapidly in room temperature quenching liquid and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 60-70 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, accelerator and lecithin mixing high-speed stirred 16-25min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 20-50 DEG C of condition；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Preferably, quenching liquid described in step S3 quenching is water or acidic aqueous solution。
(3) beneficial effect
The present invention provides a kind of explosion-proof insoluble sulfur of low electrostatic and production technology thereof, prepare insoluble sulfur can in sizing material distributional stability good, rubber vulcanization crosslinking point uniformly can overcome sizing material surface " bloom " phenomenon, it is not susceptible to during for the vulcanization of rubber migrate, thus vulcanite thickening, no blooming can be made；And the explosion-proof insoluble sulfur production process of the low electrostatic of the present invention operates safety, cost is low, the insoluble sulfur quality prepared is good, the rubbers such as meridian, rubber, tire there is good mechanical property, fatigue behaviour, electrostatic ageing-resistant, low, explosion-proof performance, for can improve the electrostatic ageing-resistant, low of rubber, explosion-proof performance。
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that, described embodiment is a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Embodiment 1:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 80 parts, conductive fiber 5 parts, light stabilizer 3 parts, vulcanizing activator 2 parts, dispersant 2 parts, coupling agent 2 parts, accelerator 2 parts, Pulvis Talci 6 parts, zinc stearate 7 parts, 6 parts of lecithin。
The wherein production technology of the explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 130-150 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；Addition conductive fiber, coupling agent, vulcanizing activator, zinc stearate stir, and are continuously heating to 260-320 DEG C, are incubated 2-3h；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition conductive fiber, coupling agent, vulcanizing activator, zinc stearate stir, and are continuously heating to 260-320 DEG C, are incubated polyreaction 90-110min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured into rapidly in room temperature quenching liquid and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 60-70 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, accelerator and lecithin mixing high-speed stirred 16-25min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 20-50 DEG C of condition；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Embodiment 2:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 80 parts, 5 parts of seriality carbon fiber, light stabilizer 3 parts, nano zine oxide 2 parts, dispersant 2 parts, silane coupler 2 parts, accelerant CZ 2 parts, Pulvis Talci 6 parts, zinc stearate 7 parts, 6 parts of lecithin。
The wherein production technology of the explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 130 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；Insulation 2h；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition seriality carbon fiber, silane coupler, nano zine oxide, zinc stearate stir, and are continuously heating to 260 DEG C, are incubated polyreaction 90min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured in normal-temperature water rapidly and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 60 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, accelerant CZ and lecithin mixing high-speed stirred 16min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 20 DEG C of conditions；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Embodiment 3:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 80 parts, chopped fiber 5 parts, light stabilizer 3 parts, nano zine oxide 2 parts, dispersant 2 parts, silane coupler 2 parts, Vulcanization accelerator TMTD 2 parts, Pulvis Talci 6 parts, zinc stearate 7 parts, 6 parts of lecithin。
The wherein production technology of the explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 150 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；Insulation 3h；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition chopped fiber, silane coupler, nano zine oxide, zinc stearate stir, and are continuously heating to 320 DEG C, are incubated polyreaction 110min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured in normal-temperature water rapidly and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 70 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, Vulcanization accelerator TMTD and lecithin mixing high-speed stirred 25min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 50 DEG C of conditions；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Embodiment 4:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 80 parts, 5 parts of seriality carbon fiber, light stabilizer 3 parts, nano zine oxide 2 parts, dispersant 2 parts, silane coupler 2 parts, altax 2 parts, Pulvis Talci 6 parts, zinc stearate 7 parts, 6 parts of lecithin。
The wherein production technology of the explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 140 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；Insulation 2.5h；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition seriality carbon fiber, silane coupler, nano zine oxide, zinc stearate stir, and are continuously heating to 290 DEG C, are incubated polyreaction 100min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured into rapidly in room temperature acidic aqueous solution and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 65 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, altax and lecithin mixing high-speed stirred 20min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 35 DEG C of conditions；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Embodiment 5:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 80 parts, 5 parts of seriality carbon fiber, light stabilizer 3 parts, nano zine oxide 2 parts, dispersant 2 parts, silane coupler 2 parts, captax 2 parts, Pulvis Talci 6 parts, zinc stearate 7 parts, 6 parts of lecithin。
The wherein production technology of the explosion-proof insoluble sulfur of low electrostatic, comprises the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 145 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；Insulation 3h；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition seriality carbon fiber, silane coupler, nano zine oxide, zinc stearate stir, and are continuously heating to 300 DEG C, are incubated polyreaction 95min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured into rapidly in room temperature acidic aqueous solution and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 68 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, captax and lecithin mixing high-speed stirred 22min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 40 DEG C of conditions；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
Embodiment 6:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 120 parts, conductive fiber 10 parts, light stabilizer 7 parts, vulcanizing activator 5 parts, dispersant 5 parts, coupling agent 5 parts, accelerator 5 parts, Pulvis Talci 15 parts, zinc stearate 12 parts, 14 parts of lecithin。
Wherein the production technology of the explosion-proof insoluble sulfur of low electrostatic is with embodiment 1。
Embodiment 7:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 100 parts, conductive fiber 8 parts, light stabilizer 5 parts, vulcanizing activator 4 parts, dispersant 3 parts, coupling agent 4 parts, accelerator 3 parts, Pulvis Talci 11 parts, zinc stearate 10 parts, 10 parts of lecithin。
Wherein the production technology of the explosion-proof insoluble sulfur of low electrostatic is with embodiment 1。
Embodiment 8:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 90 parts, conductive fiber 6 parts, light stabilizer 4 parts, vulcanizing activator 3 parts, dispersant 2 parts, coupling agent 3 parts, accelerator 3 parts, Pulvis Talci 8 parts, zinc stearate 8 parts, 7 parts of lecithin。
Wherein the production technology of the explosion-proof insoluble sulfur of low electrostatic is with embodiment 1。
Embodiment 9:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 110 parts, conductive fiber 9 parts, light stabilizer 6 parts, vulcanizing activator 5 parts, dispersant 4 parts, coupling agent 4 parts, accelerator 5 parts, Pulvis Talci 13 parts, zinc stearate 11 parts, 12 parts of lecithin。
Wherein the production technology of the explosion-proof insoluble sulfur of low electrostatic is with embodiment 1。
Embodiment 10:
The explosion-proof insoluble sulfur of the low electrostatic of the present embodiment, is made up of the raw material of following weight portion: general industry Cosan 105 parts, conductive fiber 8 parts, light stabilizer 5 parts, vulcanizing activator 4 parts, dispersant 3 parts, coupling agent 3 parts, accelerator 3 parts, Pulvis Talci 10 parts, zinc stearate 9 parts, 9 parts of lecithin。
Wherein the production technology of the explosion-proof insoluble sulfur of low electrostatic is with embodiment 1。
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially。And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment。When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment。
Above example is only in order to illustrate technical scheme, it is not intended to limit, although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme。
Claims (8)
1. the explosion-proof insoluble sulfur of low electrostatic, it is characterized in that, be made up of the raw material of following weight portion: general industry Cosan 80-120 part, conductive fiber 5-10 part, light stabilizer 3-7 part, vulcanizing activator 2-5 part, dispersant 2-5 part, coupling agent 2-5 part, accelerator 2-5 part, Pulvis Talci 6-15 part, zinc stearate 7-12 part, lecithin 6-14 part。
2. the explosion-proof insoluble sulfur of low electrostatic according to claim 1, it is characterized in that, be made up of the raw material of following weight portion: general industry Cosan 90-110 part, conductive fiber 6-9 part, light stabilizer 4-6 part, vulcanizing activator 3-5 part, dispersant 2-4 part, coupling agent 3-4 part, accelerator 3-5 part, Pulvis Talci 8-13 part, zinc stearate 8-11 part, lecithin 7-12 part。
3. the explosion-proof insoluble sulfur of low electrostatic according to claim 1, it is characterised in that described vulcanizing activator is nano zine oxide。
4. the explosion-proof insoluble sulfur of low electrostatic according to claim 1, it is characterised in that described coupling agent is silane coupler-69, and accelerator is any one in CZ, TMTD, DM or M。
5. the explosion-proof insoluble sulfur of low electrostatic according to claim 1, it is characterised in that described conductive fiber is carbon fiber。
6. the explosion-proof insoluble sulfur of low electrostatic according to claim 5, it is characterised in that described carbon fiber is seriality carbon fiber or chopped fiber。
7. one kind as arbitrary in claim 1-6 as described in the production technology of the explosion-proof insoluble sulfur of low electrostatic, it is characterised in that comprise the following steps:
S1, liquefaction: weigh the general industry Cosan of weight portion, heated to molten condition by Cosan at 130-150 DEG C, be warming up to 160 DEG C and obtain high temperature sulfur liquid；
S2, polymerization: in the high temperature sulfur liquid of step S1, addition conductive fiber, coupling agent, vulcanizing activator, zinc stearate stir, and are continuously heating to 260-320 DEG C, are incubated polyreaction 90-110min；
S3, quenching: high temperature sulfur liquid step S2 polyreaction obtained is poured into rapidly in room temperature quenching liquid and cooled down rapidly, forms uniform insoluble sulfur particle and is suspended in quenching liquid；
S4, solidification: the suspension obtained after step S3 quenching is placed in the reactor with agitating device and carries out solidifying 4-5h at 60-70 DEG C, obtain the thick product of insoluble sulfur；
S5, pulverizing: the step S4 thick product of the insoluble sulfur prepared is added Pulvis Talci, light stabilizer, dispersant, accelerator and lecithin mixing high-speed stirred 16-25min, dry, pulverizing；
S6, extraction: adopt Carbon bisulfide to extract under 20-50 DEG C of condition；
S7, dry, oil-filled: by the sample after extracting through vacuum drying, grinding, screening, oil-filled obtain insoluble sulfur powder。
8. the production technology of the explosion-proof insoluble sulfur of low electrostatic according to claim 7, it is characterised in that quenching liquid described in step S3 quenching is water or acidic aqueous solution。
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Cited By (1)
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| CN106995207A (en) * | 2017-04-11 | 2017-08-01 | 上海京海（安徽）化工有限公司 | The preparation technology of fusion method high-grade insoluble sulfur |
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