CN103589001A - High-performance water-swellable rubber - Google Patents
High-performance water-swellable rubber Download PDFInfo
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- CN103589001A CN103589001A CN201310505058.7A CN201310505058A CN103589001A CN 103589001 A CN103589001 A CN 103589001A CN 201310505058 A CN201310505058 A CN 201310505058A CN 103589001 A CN103589001 A CN 103589001A
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Abstract
The invention discloses a high-performance water-swellable rubber which comprises the following components in parts by weight: 100-150 parts of rubber, 30-40 parts of water-absorbing resin, 5-7 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2.5 parts of anti-aging agent, 4-6 parts of aromatic oil, 3-5 parts of tackifying resin, 8-12 parts of spray carbon black, 25-35 parts of bentonite, 1.5-2.5 parts of organic peroxide, 0.8-1.5 parts of sulfur and 0.8-1.8 parts of accelerator. The water-swellable rubber has the advantages of stable performance, favorable compatibility between the water-absorbing resin and rubber, small expansion ratio change after repeated water absorption, favorable working properties and low production cost, and can satisfy the requirements for simple production technique and low production cost.
Description
Technical field
The invention belongs to rubber technology field, be specifically related to a kind of high-performance water-absorbed expansion rubber.
Background technology
Water swelling rubber (Water Swelling Rubber is called for short WSR) is a kind of new functional macromolecule material of being developed by Japan the phase at the end of the seventies in last century.The patent of invention that Japanese Xu electricity Chemical Co., Ltd in 1976 has applied for water swelling rubber first.WSR introduces hydrophilic radical or hydrophilic component and makes in traditional elastic matrix (as rubber and thermoplastic elastomer), the inflatable several times to sole mass or volume and even hundreds of times after the water suction of this product, can be out of shape by commensurate structure, and the larger swelling pressure of generation, when keeping the elasticity and intensity of matrix, also there is the ability of water conservation sealing.Water swelling rubber is as a kind of new type functional material, since 20 century 70s come out, because its unique performance is widely used in tunnel, subway, culvert, swimming pool, vault, weapons storehouse, silo, underwater engineering, offshore oil production, urban water supply facility and covil construction, also can be used for the waterproof and dampproof packing of vehicle rack container, precision instrument and food etc.
The water sucting mechanism of water swelling rubber is as follows: elastic matrix mainly consists of high-polymerization degree carbon, hydrogen chain link, itself is lyophobic dust.When introduce hydrophilic radical or hydrophilic component in matrix after, while contacting with water again, water molecules can enter in matrix, form extremely strong avidity with the hydrophilic radical in rubber, and the hydroaropic substance in rubber is dissolved or swelling, inside and outside rubber, form permeable pressure head, this pressure reduction promotes water to rubber internal penetration.Hydroaropic substance constantly absorbs moisture, causes rubber generation deformation.When rubber self anti deformational force is equal with permeable pressure head, reach balance, reach hydrostatic maximum swelling rate, water-swelling effect keeps relative stability.
The domestic researcher of having thinks that water absorption course has 2 kinds of forms: a kind of is to be adsorbed with diffusion and absorbed water by kapillary; Another kind is by hydrogen bond, water molecules and hydrophilic radical to be closely linked, and forms in conjunction with water.In practical application in industry, water swelling rubber is used under sealing condition, therefore after water suction, rate of expansion can not reach hydrostatic maximum swelling rate, has produced the contact pressure between expanded rubber and obligatory point, relies on this contact pressure water swelling rubber just can hermetic seal.
At present, existing water swelling rubber is deposited with unstable properties, water-absorbing resin and is difficult to disperse and the high defect of production cost in rubber.
Summary of the invention
The object of this invention is to provide that a kind of manufacturing technique requirent is low, rate of expansion is stable and the high-performance water-absorbed expansion rubber of good processability.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
, the weight part of each component is:
100～150 parts of rubber,
Water-absorbing resin 30-40 part,
Zinc oxide 5-7 part,
Stearic acid 1-2 part,
Anti-aging agent 1.5-2.5 part,
Aromatic hydrocarbon oil 4-6 part,
Tackifying resin 3-5 part,
Spray carbon black 8-12 part,
Wilkinite 25-35 part,
Organo-peroxide 1.5-2.5 part,
Sulphur 0.8-1.5 part,
Promotor 0.8-1.8 part.
As improvement of the present invention, the weight part of each component is:
120 parts of rubber,
35 parts of water-absorbing resins,
6 parts, zinc oxide,
1.6 parts of stearic acid,
2.0 parts, anti-aging agent,
5 parts of aromatic hydrocarbon oil,
4 parts of tackifying resins,
10 parts of spray carbon blacks,
30 parts of wilkinites,
2 parts of organo-peroxides,
1 part, sulphur,
1.5 parts of promotor.
As improvement of the present invention, above-mentioned rubber is two or more of chlorinated polyethylene rubber, styrene-butadiene rubber(SBR), terpolymer EP rubber, natural rubber, cis-1,4-polybutadiene rubber, chloroprene rubber, paracril.
As the present invention, further improve, above-mentioned organo-peroxide is dicumyl peroxide, dibenzoyl peroxide, ditertiary butyl peroxide or 2,5-dimethyl-2,5-di-t-butyl peroxide hexane.
Compared with prior art, beneficial effect of the present invention is as follows:
Performances of water-swelling rubber of the present invention is stable, and the consistency of water-absorbing resin and rubber is good, and after water suction, rate of expansion changes littlely repeatedly, has the advantages that good processability and production cost are low, can meet production technique simply, the requirement of low production cost.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment only, for helping to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
, the weight part of each component is:
120 parts of rubber (natural rubber of 1:1 and cis-1,4-polybutadiene rubber),
35 parts of water-absorbing resins,
6 parts, zinc oxide,
1.6 parts of stearic acid,
2.0 parts, anti-aging agent,
5 parts of aromatic hydrocarbon oil,
4 parts of tackifying resins,
10 parts of spray carbon blacks,
30 parts of wilkinites,
2 parts of organo-peroxides (dicumyl peroxide),
1 part, sulphur,
1.5 parts of promotor.
Preparation process is as follows:
The roll spacing of two roller mills is adjusted to 0.5mm, and the natural rubber of plasticating, plays triangle bag, ten times; Then by cis-1,4-polybutadiene rubber blend together with natural rubber, play triangle bag, five times; Adjust again roll spacing to 1mm, then add at twice zinc oxide, stearic acid, antioxidant 4020, spray carbon black, wilkinite, aromatic hydrocarbon oil and tackifying resin; After above-mentioned various material mixes, then add remaining composition, then roll spacing is adjusted to 0.5mm, thin-pass five times, then descends sheet.
Its property indices of expanded rubber is as follows:
One, physical and mechanical properties:
Hardness: 65-70 Shao Shi A,
Tensile strength at yield: 5-8mpa,
Tensile yield: 300-700%;
Two, soak test
Test conditions: under 80 degree conditions, in 12% calcium chloride water, after 4 days,
1, the outside dimension of original prod is 5.5cm, and internal diameter size is that 3cm entity width is 1.2cm; Outside dimension after product expands is 7.2cm, and internal diameter size is that 3.8cm entity width is 1.7cm; Be the diametric(al) wall thickness 5mm that expanded;
2, to be of a size of cross section diameter be 5.5cm to original prod, and diameter of bore is 3cm, is highly 0.8cm; It is 7.2cm that product is of a size of cross section diameter after expanding, and diameter of bore is 3.8cm, is highly 1.2cm.
Embodiment 2
, the weight part of each component is:
120 parts of rubber (natural rubber of 1:1, terpolymer EP rubber),
35 parts of water-absorbing resins,
6 parts, zinc oxide,
1.6 parts of stearic acid,
2.0 parts, anti-aging agent,
5 parts of aromatic hydrocarbon oil,
4 parts of tackifying resins,
10 parts of spray carbon blacks,
30 parts of wilkinites,
2 parts of organo-peroxides,
1 part, sulphur,
1.5 parts of promotor.
Preparation process is as follows:
The roll spacing of two roller mills is adjusted to 0.5mm, and the natural rubber of plasticating, plays triangle bag, ten times; Then by terpolymer EP rubber blend together with natural rubber, play triangle bag, five times; Adjust again roll spacing to 1mm, then add at twice zinc oxide, stearic acid, antioxidant 4020, spray carbon black, wilkinite, aromatic hydrocarbon oil and tackifying resin; After above-mentioned various material mixes, then add remaining composition, then roll spacing is adjusted to 0.5mm, thin-pass five times, then descends sheet.
Embodiment 3
, the weight part of each component is:
120 parts of rubber (natural rubber of 1:1 and cis-1,4-polybutadiene rubber),
35 parts of water-absorbing resins,
6 parts, zinc oxide,
1.6 parts of stearic acid,
2.0 parts, anti-aging agent,
5 parts of aromatic hydrocarbon oil,
4 parts of tackifying resins,
10 parts of spray carbon blacks,
30 parts of wilkinites,
2 parts of organo-peroxides (2,5-dimethyl-2,5-di-t-butyl peroxide hexane),
1 part, sulphur,
1.5 parts of promotor.
Preparation process is as follows:
The roll spacing of two roller mills is adjusted to 0.5mm, and the natural rubber of plasticating, plays triangle bag, ten times; Then by cis-1,4-polybutadiene rubber blend together with natural rubber, play triangle bag, five times; Adjust again roll spacing to 1mm, then add at twice zinc oxide, stearic acid, antioxidant 4020, spray carbon black, wilkinite, aromatic hydrocarbon oil and tackifying resin; After above-mentioned various material mixes, then add remaining composition, then roll spacing is adjusted to 0.5mm, thin-pass five times, then descends sheet.
Applicant's statement, person of ordinary skill in the field is on the basis of above-described embodiment, by the concrete content point value of above-described embodiment component, combined with the technical scheme of summary of the invention part, thereby the new numerical range producing, also be one of record scope of the present invention, the application, for making specification sheets simple and clear, is no longer enumerated these numerical ranges.
Claims (4)
1. a high-performance water-absorbed expansion rubber, is characterized in that the weight part of each component is:
100～150 parts of rubber,
Water-absorbing resin 30-40 part,
Zinc oxide 5-7 part,
Stearic acid 1-2 part,
Anti-aging agent 1.5-2.5 part,
Aromatic hydrocarbon oil 4-6 part,
Tackifying resin 3-5 part,
Spray carbon black 8-12 part,
Wilkinite 25-35 part,
Organo-peroxide 1.5-2.5 part,
Sulphur 0.8-1.5 part,
Promotor 0.8-1.8 part.
2. a kind of high-performance water-absorbed expansion rubber as claimed in claim 1, is characterized in that the weight part of each component is:
120 parts of rubber,
35 parts of water-absorbing resins,
6 parts, zinc oxide,
1.6 parts of stearic acid,
2.0 parts, anti-aging agent,
5 parts of aromatic hydrocarbon oil,
4 parts of tackifying resins,
10 parts of spray carbon blacks,
30 parts of wilkinites,
2 parts of organo-peroxides,
1 part, sulphur,
1.5 parts of promotor.
3. a kind of high-performance water-absorbed expansion rubber as claimed in claim 1, is characterized in that: described rubber is two or more of chlorinated polyethylene rubber, styrene-butadiene rubber(SBR), terpolymer EP rubber, natural rubber, cis-1,4-polybutadiene rubber, chloroprene rubber, paracril.
4. a kind of high-performance water-absorbed expansion rubber as claimed in claim 1, is characterized in that: described organo-peroxide is dicumyl peroxide, dibenzoyl peroxide, ditertiary butyl peroxide or 2,5-dimethyl-2 5-di-t-butyl peroxide hexane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310505058.7A CN103589001A (en) | 2013-10-24 | 2013-10-24 | High-performance water-swellable rubber |
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| CN201310505058.7A CN103589001A (en) | 2013-10-24 | 2013-10-24 | High-performance water-swellable rubber |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980568A (en) * | 2014-06-04 | 2014-08-13 | 南京东亚橡塑制品有限公司 | Water swelling rubber material and preparation method thereof |
| CN104059266A (en) * | 2014-06-20 | 2014-09-24 | 攀枝花市扬驰胶业有限公司 | National standard waterstop rubber compound utilizing reclaimed rubber and preparation method of the national standard waterstop |
| CN104910460A (en) * | 2015-05-12 | 2015-09-16 | 蚌埠市耀得保温容器有限公司 | Water leakage prevention and aging resistant vacuum flask |
| CN104961938A (en) * | 2015-06-26 | 2015-10-07 | 安徽顺驰电缆有限公司 | Dampproof self-cleaning rubber floor and processing technology thereof |
| CN105111547A (en) * | 2015-08-17 | 2015-12-02 | 合肥市再德高分子材料有限公司 | Rubber material with long service life and good mechanical properties |
| CN105273269A (en) * | 2015-11-13 | 2016-01-27 | 漯河利通液压科技股份有限公司 | Hydrogenated butadiene-acrylonitrile rubber and sodium acrylate ionic bond polymer blended oil-resisting hose rubber material and preparing method thereof |
| CN105820381A (en) * | 2016-05-04 | 2016-08-03 | 蚌埠隆华压铸机有限公司 | Production technology of elastic rubber pad |
| CN105906886A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | Waterproof water-expanding rubber sealing material with low dissolve-loss rate and preparation method thereof |
| CN105906874A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | High-performance waterproof rubber sealing material with hydrophilic expansion and preparation method thereof |
| CN106879525A (en) * | 2016-12-30 | 2017-06-23 | 浙江海洋大学 | A kind of hound shallow sea seining cultivation engineering connects bank technology |
| CN107216513A (en) * | 2017-06-30 | 2017-09-29 | 南通鸿图橡塑有限公司 | A kind of expanded rubber |
| CN107868375A (en) * | 2017-11-13 | 2018-04-03 | 常州蓝旗亚纺织品有限公司 | A kind of bentonite base composite water-stop bar |
| CN108915103A (en) * | 2018-07-06 | 2018-11-30 | 珠海华兴防水科技有限公司 | Steel mesh side rubber fastening band and its manufacturing process |
| CN108929495A (en) * | 2018-07-27 | 2018-12-04 | 刘荣 | A kind of water storage barrier rubber plate and preparation method thereof |
| CN109354734A (en) * | 2018-10-25 | 2019-02-19 | 西北橡胶塑料研究设计院有限公司 | A kind of flame retardant type hydro-expansive rubber material and preparation method thereof |
| CN113004580A (en) * | 2019-12-22 | 2021-06-22 | 上海清远管业科技股份有限公司 | Fatigue-resistant water-swellable rubber and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851012A (en) * | 2012-09-19 | 2013-01-02 | 青岛开世密封工业有限公司 | Water swellable rubber in high-concentration salt solution and preparation method thereof |
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2013
- 2013-10-24 CN CN201310505058.7A patent/CN103589001A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851012A (en) * | 2012-09-19 | 2013-01-02 | 青岛开世密封工业有限公司 | Water swellable rubber in high-concentration salt solution and preparation method thereof |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980568A (en) * | 2014-06-04 | 2014-08-13 | 南京东亚橡塑制品有限公司 | Water swelling rubber material and preparation method thereof |
| CN103980568B (en) * | 2014-06-04 | 2016-03-30 | 南京东亚橡塑制品有限公司 | A kind of water swelling rubber material and preparation method thereof |
| CN104059266A (en) * | 2014-06-20 | 2014-09-24 | 攀枝花市扬驰胶业有限公司 | National standard waterstop rubber compound utilizing reclaimed rubber and preparation method of the national standard waterstop |
| CN104910460A (en) * | 2015-05-12 | 2015-09-16 | 蚌埠市耀得保温容器有限公司 | Water leakage prevention and aging resistant vacuum flask |
| CN104961938A (en) * | 2015-06-26 | 2015-10-07 | 安徽顺驰电缆有限公司 | Dampproof self-cleaning rubber floor and processing technology thereof |
| CN105111547A (en) * | 2015-08-17 | 2015-12-02 | 合肥市再德高分子材料有限公司 | Rubber material with long service life and good mechanical properties |
| CN105273269A (en) * | 2015-11-13 | 2016-01-27 | 漯河利通液压科技股份有限公司 | Hydrogenated butadiene-acrylonitrile rubber and sodium acrylate ionic bond polymer blended oil-resisting hose rubber material and preparing method thereof |
| CN105820381A (en) * | 2016-05-04 | 2016-08-03 | 蚌埠隆华压铸机有限公司 | Production technology of elastic rubber pad |
| CN105906886A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | Waterproof water-expanding rubber sealing material with low dissolve-loss rate and preparation method thereof |
| CN105906874A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | High-performance waterproof rubber sealing material with hydrophilic expansion and preparation method thereof |
| CN106879525A (en) * | 2016-12-30 | 2017-06-23 | 浙江海洋大学 | A kind of hound shallow sea seining cultivation engineering connects bank technology |
| CN107216513A (en) * | 2017-06-30 | 2017-09-29 | 南通鸿图橡塑有限公司 | A kind of expanded rubber |
| CN107868375A (en) * | 2017-11-13 | 2018-04-03 | 常州蓝旗亚纺织品有限公司 | A kind of bentonite base composite water-stop bar |
| CN107868375B (en) * | 2017-11-13 | 2020-06-23 | 上安实业江苏有限公司 | Bentonite-based composite water stop strip |
| CN108915103A (en) * | 2018-07-06 | 2018-11-30 | 珠海华兴防水科技有限公司 | Steel mesh side rubber fastening band and its manufacturing process |
| CN108929495A (en) * | 2018-07-27 | 2018-12-04 | 刘荣 | A kind of water storage barrier rubber plate and preparation method thereof |
| CN108929495B (en) * | 2018-07-27 | 2021-03-30 | 三河市长城橡胶有限公司 | Water storage seepage-proofing rubber plate and preparation method thereof |
| CN109354734A (en) * | 2018-10-25 | 2019-02-19 | 西北橡胶塑料研究设计院有限公司 | A kind of flame retardant type hydro-expansive rubber material and preparation method thereof |
| CN113004580A (en) * | 2019-12-22 | 2021-06-22 | 上海清远管业科技股份有限公司 | Fatigue-resistant water-swellable rubber and preparation method thereof |
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Application publication date: 20140219 |