CN105199251A - Magnesium hydroxide containing chlorosulfonated polyethylene rubber formula - Google Patents
Magnesium hydroxide containing chlorosulfonated polyethylene rubber formula Download PDFInfo
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- CN105199251A CN105199251A CN201510676428.2A CN201510676428A CN105199251A CN 105199251 A CN105199251 A CN 105199251A CN 201510676428 A CN201510676428 A CN 201510676428A CN 105199251 A CN105199251 A CN 105199251A
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- CN
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- Prior art keywords
- magnesium hydroxide
- chlorosulfonated polyethylene
- rubber
- parts
- polyethylene rubber
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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
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K3/04—Carbon
-
- 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
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
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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
- C08K5/14—Peroxides
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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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a magnesium hydroxide containing chlorosulfonated polyethylene rubber formula. The formula comprises components in parts by mass as follows: 100 parts of chlorosulfonated polyethylene, 15-20 parts of super-fine magnesium hydroxide, 1-2 parts of stearic acid, 30-50 parts of carbon black N550, 10-15 parts of dioctyl phthalate, 2-3 parts of a vulcanizing agent DCP and 0.5-1 part of sulfur. According to the formula, the component magnesium hydroxide which is a non-toxic and non-pollution metal oxide is adopted and used for final vulcanizing of rubber, and the rubber prepared according to the formula is novel, environment-friendly and flame-retardant and has the performance of flue gas desulfurization.
Description
Technical field
The invention belongs to rubber processing techniques field.Especially a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide.
Background technology
At present, the metal oxide that the conventional many uses of chlorosulfonated polyethylene (CSM) rubber compounding are leaded, metal oxide adds promotor vulcanization system adding and easily causes incipient scorch problem man-hour.Particularly yellow lead oxide is easy to produce incipient scorch, and sizing material can be made to add man-hour at work in-process and cause the waste of material.In addition also the mankind and equipment are polluted.Because yellow lead oxide (having another name called yellow lead powder) relative density comparatively large (9.53 grams/cc) has toxicity.Therefore easily pneumoconiosis intoxicating phenomenon is caused to the mankind when preparing burden.In addition, yellow lead oxide generates the lead sulfide of black with sulphur effect in sizing material, makes goods blackening be not easy to the production of light color article, easily pollutes or corrosion phenomenon equipment.Therefore, need to develop a kind of environment-friendly type formula not containing harmful metal oxide.
Another chlorosulfonated polyethylene rubber formula adopts magnesium oxide metal oxide to add promotor vulcanization system, although carry out sulfuration can not resemble yellow lead oxide generate the lead sulfide of black with sulphur effect in sizing material, make goods blackening be not easy to the production of light color article, equipment is easily polluted or corrosion phenomenon.But the saturated gas in sulfidation particularly after sulfuration is discharged into atmospheric layer and pollutes atmospheric layer.Reason is because rubber item sulfuration major part all adopts metal oxide and sulphur and other vulcanizing agent to carry out final sulfuration to finished product.Therefore containing a large amount of hydrogen sulfide (H in the saturated gas after sulfuration
2s) gas, forms water sulfuric acid (being commonly called as acid rain) after the contact with moisture in this gas and air.
The physical property of hydrogen sulfide:
1. colourless gas, has typical rotten egg smell;
2. relative molecular weight: 34.08;
3. to air relative density: 1.19
4. in soluble in water, alcohols, dithiocarbonic anhydride, petroleum solvent and crude oil.
The chemical property of hydrogen sulfide:
1. inflammable gas, natural temperature 260 DEG C;
2. aerial final oxide compound is sulfuric acid or sulfate ion;
3. severe toxicity is had;
4. extremely strong to the corrodibility of steel.
Hydrogen sulfide formation mechenism: rubber molecule and sulfur reaction mechanism
～CH
2～CH
2～CH
2＝CH～+S→～CH
2～CH
2～CH
2＝CH～+H
2S
The formation mechenism of acid rain: hydrogen sulfide in atmosphere with reaction of moisture mechanism
H
2S+4H
2O＝H
2SO
4+4H
2
Chlorosulfonated polyethylene rubber CSM and natural gum, butadiene-styrene rubber, the polydienes such as cis-butadiene cement are compared has higher intensity, processing difficulties; Need more softening agent in the course of processing for this reason.Usual use intermiscibility is good, and the aromatic hydrocarbon oil that price is lower, liquid coumarone and lipid softening agent are as dibutylester, the softening agent such as dioctyl ester; Poly-metal deoxide in vulcanization system: plumbous oxide and magnesium oxide (two kinds of vulcanizing agents can be used alone and also can merge use) and this vulcanizing agent are just as the initiator of rubber molecular chain, final vulcanizing agent is DCP and sulphur (sulphur can be combined with promotor, and sulphur is auxiliary vulcanizing agent when adopting DCP to make vulcanizing agent); Traditional rubber compounding major part is all in this vulcanization of employing (comprising the formula of foreign study); Conventional formulation is except the existence in above-mentioned explanation is to except personnel, equipment, environment generation pollution, and the property indices of sizing material goods is not high yet.
Summary of the invention
The object of the invention is to provide a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide, magnesium hydroxide is adopted to replace yellow lead oxide, solve and produce and pollute, thus reach the object of environmental protection owing to producing to personnel, equipment, environment, and improve the performance of rubber product.
Chlorosulfonated polyethylene rubber formula containing magnesium hydroxide of the present invention, component and mass fraction proportioning as follows:
Recipe ingredient and the mass fraction proportioning of the preferred version one of such scheme are as follows:
Recipe ingredient and the mass fraction proportioning of the preferred version two of such scheme are as follows:
Recipe ingredient and the mass fraction proportioning of the preferred version three of such scheme are as follows:
Recipe ingredient and the mass fraction proportioning of the preferred version four of such scheme are as follows:
Described dibutyl ester is dioctyl sebacate, hexanodioic acid dibutyl ester, nonane diacid dibutyl ester or o-phthalic acid dibutyl ester.
The granularity of described super fine magnesium hydroxide is 5000 orders.
The method of the chlorosulfonated polyethylene rubber adopting the above-mentioned chlorosulfonated polyethylene rubber formula containing magnesium hydroxide to prepare containing magnesium hydroxide is:
1, raw material is prepared by said ratio, moisture content < 0.5% by weight percentage in raw material;
When 2, Banbury mixer being warmed up to 80 ~ 100 DEG C, the chlorosulfonated polyethylene of preparation is placed on Banbury mixer indoor and carries out stirring 8 ~ 10 minutes, then add super fine magnesium hydroxide and stir 2 minutes, then add stearic acid and stir 1 minute, add carbon black again and dibutyl ester carries out mix and blend 3 minutes, obtain sizing material;
3, sizing material is poured into inside mill by guide car, carry out open mixing and add vulcanizing agent DCP and sulphur, mix 3 minutes;
4, mixed for mill material is carried out thin-pass process, be pressed into the thin slice of 0.5 ~ 1 millimeter, then break into triangle bag; Repeatedly carry out 3 ~ 5 times, make rubber;
5, the film on a mill until rubber being pressed into 8 ~ 10 millimeters is dealt on air dry frame, aeration-cooling.
The feature of magnesium hydroxide: be insoluble in water and alcoholic solvent, is dissolved in diluted acid and ammonium salt; Formula of the present invention selects magnesium hydroxide to be component, its main purpose be exactly application magnesium hydroxide not containing toxic and free of contamination metal oxide carries out the final sulfuration of rubber, be the environment-friendly type formula of a kind of novel, green, flame retardant type and flue gas desulfurization type; The hydrogen sulfide produced after adding vulcanizing agent and magnesium hydroxide occur to react as follows:
H
2S+4H
2O＝H
2SO
4+4H
2，
H
2SO
4+Mg(HO)
2＝MgSO
4+2H
2O；
Therefore avoid or reduce the discharge of hydrogen sulfide after sulfuration, reduce the pollution to environment.
Use yellow lead oxide that sizing material can be made to add at work in-process to produce incipient scorch man-hour and the waste that causes material in a large number in conventional coventional type CSM sizing material, and the present invention is containing yellow lead oxide, there is not incipient scorch phenomenon containing super fine magnesium hydroxide makes work in-process sizing material repeatedly use and the shelf lives also longer; Super fine magnesium hydroxide plays sulfuration initiation in sizing material, and therefore it instead of the use of yellow lead oxide; As produced the yellow lead oxide or magnesium oxide that pollute to personnel, equipment and environment; Use the sizing material work in-process colloid ground of super fine magnesium hydroxide soft, the adhesive tape that processing characteristics is well extruded is smooth, can also reuse product lumber recovery is increased after secondary processing; Super fine magnesium hydroxide product cross-linking density after sulfuration increases, and thus product property indices is better than the product of coventional type vulcanization system.
The CSM rubber product that the present invention uses super fine magnesium hydroxide to obtain not only has higher hardness, and magnesium hydroxide can also play environmental-protection function in sizing material, makes rubber unvulcanizate be convenient to processing; Magnesium hydroxide is nontoxic, tasteless, white powder, plays the initiation of rubber molecular chain, and in sulfidation, participate in sulfuration effect in the course of processing, can give the cross-linking density that cross-linked rubber is higher; Therefore apply magnesium hydroxide and not only improve the processing characteristics of CSM rubber and the quality of product, also reduce or alternative other materials simultaneously; As the usage quantity of: vulcanizing agent, promotor and carbon black, so just reduce costs in raw-material use.
Chlorosulfonated polyethylene rubber formula containing super fine magnesium hydroxide of the present invention, is mainly used in mechanicals CSM, can manufactures the sebific duct, conveying belt, sealing member, rubber roll etc. with property.Be such as the metallurgical rubber roll of encapsulate layer with CSM, there is acid resistance and alkali resistance.There are higher wear resistance and flame retardant resistance simultaneously.
Embodiment
The mixing equipment that the present invention adopts is internal rubber mixer (abbreviation Banbury mixer) and opening rubber mixing machine (abbreviation mill).
The magnesium hydroxide that the present invention adopts:
English name: Magnesiumhydyoxide
Chemical formula: Mg (OH)
2
Molecular weight: 58.326
Fusing point: 350 DEG C
Density: 2.36
Shape: nontoxic, tasteless white powder
Granularity: 5000 orders (ultra-fine rank).
The chlorosulfonated polyethylene (CSM), super fine magnesium hydroxide, stearic acid, carbon black N550, dibutyl ester, vulcanizing agent DCP and the sulphur that adopt in the embodiment of the present invention are commercial products.
Adopt conventional formulation to carry out contrast experiment in the embodiment of the present invention, the rubber product performance of acquisition is as shown in table 1;
Table 1
Rubber product performance in the embodiment of the present invention is as shown in table 2;
Table 2
Following embodiment, only for explaining the present invention, does not form the restriction to right, other alternative means that those skilled in the art can expect according to description, all should within the protection domain of the claims in the present invention.
Embodiment
| Component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Chlorosulfonated polyethylene | 100 | 100 | 100 | 100 | 100 |
| Super fine magnesium hydroxide | 20 | 15 | 18 | 15 | 10 |
| Stearic acid | 1 | 2 | 1.2 | 1.8 | 1.5 |
| Carbon black N550 | 45 | 50 | 30 | 50 | 40 |
| Dibutyl ester | 12 | 10 | 15 | 11 | 13 |
| Vulcanizing agent DCP | 3 | 2 | 2.5 | 2 | 2.5 |
| Sulphur | 1 | 0.7 | 0.8 | 0.7 | 0.8 |
| Component | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| Chlorosulfonated polyethylene | 100 | 100 | 100 | 100 | 100 |
| Super fine magnesium hydroxide | 15 | 16 | 18 | 19 | 20 |
| Stearic acid | 1 | 1.3 | 1.5 | 1.8 | 2 |
| Carbon black N550 | 35 | 42 | 46 | 48 | 50 |
| Dibutyl ester | 10 | 11 | 12 | 13 | 15 |
| Vulcanizing agent DCP | 2.5 | 2.2 | 2.8 | 3 | 2.6 |
| Sulphur | 0.6 | 0.7 | 0.8 | 0.9 | 1 |
The properties of rubber Indexs measure data of embodiment
| Performance index | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Tensile strength (MPa) | 21.54 | 19.23 | 20.17 | 24.35 | 20.96 |
| Tear strength (KN/M) | 56.14 | 60.27 | 59.35 | 55.42 | 61.28 |
| Tensile yield (%) | 312 | 334 | 327 | 309 | 341 |
| Hardness (shore) | 78 | 79 | 77 | 80 | 78 |
| Abrasion (cm 3/1.6km) | 0.16 | 0.12 | 0.18 | 0.13 | 0.17 |
| Performance index | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| Tensile strength (MPa) | 19.25 | 20.63 | 22.18 | 24.35 | 23.47 |
| Tear strength (KN/M) | 53.18 | 60.95 | 62.37 | 64.15 | 61.67 |
| Tensile yield (%) | 321 | 329 | 318 | 325 | 331 |
| Hardness (shore) | 77 | 78 | 80 | 80 | 81 |
| Abrasion (cm 3/1.6km) | 0.13 | 0.15 | 0.11 | 0.10 | 0.12 |
The product obtained by the raw material in listed Example formulations and consumption not only has higher hardness, and magnesium hydroxide can also play environmental protection in sizing material; Magnesium hydroxide is nontoxic, tasteless white powder, plays the initiation of rubber molecular chain, and in sulfidation, participate in sulfuration effect in the course of processing, can give the cross-linking density that cross-linked rubber is higher; Because magnesium hydroxide is cheap, be applied in this formula and not only improve the processing characteristics of CSM rubber and the quality of product, also reduce or alternative other materials simultaneously; As the usage quantity of: vulcanizing agent, promotor and carbon black, so just reduce costs in raw-material use.
Claims (7)
1. containing the chlorosulfonated polyethylene rubber formula of magnesium hydroxide, it is characterized in that recipe ingredient and mass fraction proportioning as follows:
2. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide according to claim 1, it is characterized in that the recipe ingredient of preferred version one and mass fraction proportioning as follows:
3. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide according to claim 1, it is characterized in that the recipe ingredient of preferred version two and mass fraction proportioning as follows:
4. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide according to claim 1, it is characterized in that the recipe ingredient of preferred version three and mass fraction proportioning as follows:
5. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide according to claim 1, it is characterized in that the recipe ingredient of preferred version four and mass fraction proportioning as follows:
6. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide belonging to claim 1,2,3,4 or 5, is characterized in that described dibutyl ester is dioctyl sebacate, hexanodioic acid dibutyl ester, nonane diacid dibutyl ester or o-phthalic acid dibutyl ester.
7. a kind of chlorosulfonated polyethylene rubber formula containing magnesium hydroxide belonging to claim 1,2,3,4 or 5, is characterized in that the granularity of described super fine magnesium hydroxide is 5000 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676428.2A CN105199251A (en) | 2015-10-16 | 2015-10-16 | Magnesium hydroxide containing chlorosulfonated polyethylene rubber formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676428.2A CN105199251A (en) | 2015-10-16 | 2015-10-16 | Magnesium hydroxide containing chlorosulfonated polyethylene rubber formula |
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| Publication Number | Publication Date |
|---|---|
| CN105199251A true CN105199251A (en) | 2015-12-30 |
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109851930A (en) * | 2018-12-27 | 2019-06-07 | 无锡市兰翔胶业有限公司 | A kind of paint brushing rubber roller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746211A (en) * | 2004-09-06 | 2006-03-15 | 刘明辉 | Fire-retardant rubber plate |
| CN103980601A (en) * | 2014-01-23 | 2014-08-13 | 安徽华源电缆集团有限公司 | Flame retardant and anti-aging cable sheath material |
| CN104194175A (en) * | 2014-08-19 | 2014-12-10 | 安徽蒙特尔电缆集团有限公司 | Oil-resistant corrosion-resistant cable sheath material |
| CN104761838A (en) * | 2015-04-20 | 2015-07-08 | 特变电工(德阳)电缆股份有限公司 | Chlorinated polyethylene rubber and preparation method thereof |
-
2015
- 2015-10-16 CN CN201510676428.2A patent/CN105199251A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1746211A (en) * | 2004-09-06 | 2006-03-15 | 刘明辉 | Fire-retardant rubber plate |
| CN103980601A (en) * | 2014-01-23 | 2014-08-13 | 安徽华源电缆集团有限公司 | Flame retardant and anti-aging cable sheath material |
| CN104194175A (en) * | 2014-08-19 | 2014-12-10 | 安徽蒙特尔电缆集团有限公司 | Oil-resistant corrosion-resistant cable sheath material |
| CN104761838A (en) * | 2015-04-20 | 2015-07-08 | 特变电工(德阳)电缆股份有限公司 | Chlorinated polyethylene rubber and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109851930A (en) * | 2018-12-27 | 2019-06-07 | 无锡市兰翔胶业有限公司 | A kind of paint brushing rubber roller |
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Application publication date: 20151230 |