CN105440382A - High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof - Google Patents
High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof Download PDFInfo
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- CN105440382A CN105440382A CN201510895132.XA CN201510895132A CN105440382A CN 105440382 A CN105440382 A CN 105440382A CN 201510895132 A CN201510895132 A CN 201510895132A CN 105440382 A CN105440382 A CN 105440382A
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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
- C08L17/00—Compositions of reclaimed rubber
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2205/03—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
Abstract
The invention discloses a high-temperature-resistant and anti-aging regenerated rubber sealing ring. The high-temperature-resistant and anti-aging regenerated rubber sealing ring is prepared from, by weight, 60-80 parts of regenerated rubber, 15-25 parts of quartz powder, 5-10 parts of graphite powder, 4-6 parts of rosin, 0.5-1 part of propyl gallate, 2-4 parts of butyl acrylate, 5-10 parts of butadiene styrene rubber, 1-2 parts of sulphur, 0.1-0.2 part of potassium peroxodisulfate, 1-2 parts of ethylene-bis-stearamide, 0.1-0.2 part of lauryl sodium sulfate, 0.1-0.2 part of dibasic lead phosphate, 1-2 parts of zinc stearate and 5-10 parts of compound additive. The regenerated rubber sealing ring has the good mechanical performance and the good use performance, and is good in sealing performance, high in overall performance, good in high temperature resistance and anti-aging performance and suitable for the high temperature condition.
Description
Technical field
The present invention relates to regenerated rubber technical field, particularly relate to a kind of high temperature resistant anti-aging regenerated rubber sealing-ring and preparation method thereof.
Background technology
Along with expanding economy, the demand of rubber is also being promoted.Meanwhile, the process of waste old also becomes one of serious problems that people face.The degradation property of rubber is poor, over a long time can not natural degradation, and a large amount of waste olds not only causes potential threat to physical environment, wastes resource.One of main path of waste old comprehensive utilization again processes waste old, makes it be converted into regenerated rubber, thus make the best use of everything, realize recycling economy development.Regenerated rubber can replace rubber on the one hand, alleviates the serious scarcity of natural rubber; Decrease potential pollution on the other hand, be conducive to environmental protection.
The subject matter that current regenerated rubber exists is exactly that its mechanical property indices declines, and poor processability, only can be applied to low grade products, and its use properties and value added are not high, limits its use in medium and high-grade goods.Therefore, improve over-all properties and the value added of reclaimed rubber products, widen the important development direction that its range of application is current reclaimed rubber products.Rubber item of a great variety, the sealing-ring wherein playing sealing function in various environment is an important field.When working temperature is too high, the weaken of rubber, easily deformable, and easily occur aging, stopping property reduces, and the rubber seal therefore used under the high temperature conditions should have certain high temperature resistant ageing-resistant ability, can reach the normal demand used with guaranteed performance and life-span.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of high temperature resistant anti-aging regenerated rubber sealing-ring and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of high temperature resistant anti-aging regenerated rubber sealing-ring, it is obtained by the raw material of following weight parts:
Regenerated rubber 60-80, silica powder 15-25, Graphite Powder 99 5-10, rosin 4-6, Tenox PG 0.5-1, butyl acrylate 2-4; styrene-butadiene rubber(SBR) 5-10; sulphur 1-2, Potassium Persulphate 0.1-0.2, ethylene bis stearic acid amide 1-2; sodium lauryl sulphate 0.1-0.2; dibasic lead phosphite 0.1-0.2, Zinic stearas 1-2, composite assistant 5-10;
Wherein composite assistant is made up of the raw material of following weight part: tea-seed oil 30-40, turps 3-5, glycerol 1-2, tributyl acetylcitrate 10-15, phytic acid 0.5-1,1-2, nano titanium oxide 1-2; The preparation method of composite assistant be by after glycerol, phytic acid, mixing 80-90 DEG C stir 0.5-1h, then mix with all the other raw materials, 50-60 DEG C, 1000-1500r/min stirs 1-2h, after cooling and get final product.
A preparation method for high temperature resistant anti-aging regenerated rubber sealing-ring, comprises the following steps:
(1) mix pressing solid-liquid weight ratio 1:4-1:5 after silica powder and Graphite Powder 99 mixing with water, add butyl acrylate and sodium lauryl sulphate 90-95 DEG C again, 1000-1500r/min stirs 5-10min, then instill rapidly the rosin of melting and stir 10-15min under similarity condition, finally add Potassium Persulphate 70-80 DEG C of reaction 4-6h, cooled and filtered, be ground to 100-200 order after 100-120 DEG C of drying completely, obtain modified powder;
(2) after regenerated rubber, styrene-butadiene rubber(SBR) being mixed with composite assistant, 80-100 DEG C mixes 0.5-1h, then adds Zinic stearas and Tenox PG 50-60 DEG C of stirring 1-2h, obtains rubber stock;
(3) modified powder in (1) is added in reactor jointly with the rubber stock in (2) mix 10-15min prior to 100-120 DEG C, then all the other raw materials are added in 60-100 DEG C of mixing 0.5-1h, finally extrude with twin screw extruder 200-240 DEG C and obtain reclaimed rubber composite material, after Mould Machining is shaping, namely obtain high temperature resistant anti-aging regenerated rubber sealing-ring.
Advantage of the present invention is:
Containing abundant activeconstituents in tea-seed oil, comprise tea-polyphenol, sterol, squalene etc., auxiliary softening effect can be played, tea-seed oil has stronger perviousness simultaneously, can penetrate in the space of rubber molecular chain rapidly and equably, increase rubber molecule spacing, contribute to flexibility and the mobility of improving sizing material, improve the processing characteristics of regenerated rubber.
The present invention is composite with tea-seed oil, turps and tributyl acetylcitrate, be aided with phytic acid, nano titanium oxide isoreactivity composition obtains composite assistant, the plasticity-of sizing material, mobility, tackiness can be increased, effectively improve weathering resistance and the processing characteristics of regenerated rubber; Rosin and butyl acrylate active group is introduced to silica powder and Graphite Powder 99 mixed powder surface by emulsion copolymerization reaction, can interact with rubber molecular chain group, effectively improve the consistency of powder and sizing material, powder is uniformly dispersed in sizing material, improves the mechanical property of sizing material; Utilize the composite of each raw material and synergy, make the regenerated rubber sealing-ring obtained have good mechanical property and use properties, good airproof performance, over-all properties is high, and high temperature resistant, ageing-resistant performance is good, is applicable to using under the high temperature conditions.
Embodiment
A kind of high temperature resistant anti-aging regenerated rubber sealing-ring, it is obtained by the raw material of following weight parts:
Regenerated rubber 60, silica powder 15, Graphite Powder 99 5, rosin 4, Tenox PG 0.5, butyl acrylate 2, styrene-butadiene rubber(SBR) 5, sulphur 1, Potassium Persulphate 0.1, ethylene bis stearic acid amide 1, sodium lauryl sulphate 0.1, dibasic lead phosphite 0.1, Zinic stearas 1, composite assistant 5;
Wherein composite assistant is made up of the raw material of following weight part: tea-seed oil 30, turps 3, glycerol 1, tributyl acetylcitrate 10, phytic acid 0.5,1, nano titanium oxide 1; Glycerol, phytic acid, latter 80 DEG C of mixing are stirred 0.5h by the preparation method of composite assistant, then mix with all the other raw materials, 50 DEG C, 1000r/min stirs 1h, after cooling and get final product.
A preparation method for high temperature resistant anti-aging regenerated rubber sealing-ring, comprises the following steps:
(1) mix pressing solid-liquid weight ratio 1:4 after silica powder and Graphite Powder 99 mixing with water, add butyl acrylate again and sodium lauryl sulphate 90 DEG C, 1000r/min stir 5min, then instill rapidly the rosin of melting and stir 10min under similarity condition, finally add Potassium Persulphate 70 DEG C reaction 4h, cooled and filtered, be ground to 100 orders after 100 DEG C of dryings completely, obtain modified powder;
(2) regenerated rubber, styrene-butadiene rubber(SBR) are mixed latter 80 DEG C with composite assistant and mix 0.5h, then add Zinic stearas and Tenox PG 50 DEG C stirring 1h, obtain rubber stock;
(3) modified powder in (1) is added in reactor jointly with the rubber stock in (2) mix 10min prior to 100 DEG C, then all the other raw materials are added in 60 DEG C of mixing 0.5h, extrude with twin screw extruder 200 DEG C and obtain reclaimed rubber composite material, after Mould Machining is shaping, namely obtain high temperature resistant anti-aging regenerated rubber sealing-ring.
Carry out performance test to above-mentioned obtained rubber seal, result is as follows:
Tensile strength: 25.3MPa;
Tensile yield: 550%;
Thermal ageing (70 DEG C × 96h): stretching strength retentivity: 88%, tensile yield conservation rate: 81%.
Claims (2)
1. a high temperature resistant anti-aging regenerated rubber sealing-ring, is characterized in that, it is obtained by the raw material of following weight parts:
Regenerated rubber 60-80, silica powder 15-25, Graphite Powder 99 5-10, rosin 4-6, Tenox PG 0.5-1, butyl acrylate 2-4; styrene-butadiene rubber(SBR) 5-10; sulphur 1-2, Potassium Persulphate 0.1-0.2, ethylene bis stearic acid amide 1-2; sodium lauryl sulphate 0.1-0.2; dibasic lead phosphite 0.1-0.2, Zinic stearas 1-2, composite assistant 5-10;
Described composite assistant is made up of the raw material of following weight part: tea-seed oil 30-40, turps 3-5, glycerol 1-2, tributyl acetylcitrate 10-15, phytic acid 0.5-1,1-2, nano titanium oxide 1-2; The preparation method of composite assistant be by after glycerol, phytic acid, mixing 80-90 DEG C stir 0.5-1h, then mix with all the other raw materials, 50-60 DEG C, 1000-1500r/min stirs 1-2h, after cooling and get final product.
2. the preparation method of a kind of high temperature resistant anti-aging regenerated rubber sealing-ring according to claim 1, is characterized in that, comprise the following steps:
(1) mix pressing solid-liquid weight ratio 1:4-1:5 after silica powder and Graphite Powder 99 mixing with water, add butyl acrylate and sodium lauryl sulphate 90-95 DEG C again, 1000-1500r/min stirs 5-10min, then instill rapidly the rosin of melting and stir 10-15min under similarity condition, finally add Potassium Persulphate 70-80 DEG C of reaction 4-6h, cooled and filtered, be ground to 100-200 order after 100-120 DEG C of drying completely, obtain modified powder;
(2) after regenerated rubber, styrene-butadiene rubber(SBR) being mixed with composite assistant, 80-100 DEG C mixes 0.5-1h, then adds Zinic stearas and Tenox PG 50-60 DEG C of stirring 1-2h, obtains rubber stock;
(3) modified powder in (1) is added in reactor jointly with the rubber stock in (2) mix 10-15min prior to 100-120 DEG C, then all the other raw materials are added in 60-100 DEG C of mixing 0.5-1h, finally extrude with twin screw extruder 200-240 DEG C and obtain reclaimed rubber composite material, after Mould Machining is shaping, namely obtain high temperature resistant anti-aging regenerated rubber sealing-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895132.XA CN105440382A (en) | 2015-12-08 | 2015-12-08 | High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510895132.XA CN105440382A (en) | 2015-12-08 | 2015-12-08 | High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof |
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| CN105440382A true CN105440382A (en) | 2016-03-30 |
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| CN201510895132.XA Pending CN105440382A (en) | 2015-12-08 | 2015-12-08 | High-temperature-resistant and anti-aging regenerated rubber sealing ring and preparing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107211973A (en) * | 2017-06-29 | 2017-09-29 | 界首市汇珠渔具有限公司 | A kind of heatproof high-quality bionic fish bait |
| CN110484004A (en) * | 2019-09-16 | 2019-11-22 | 四川远星橡胶有限责任公司 | A kind of environment protection type easy melts sealing material and preparation method thereof |
| CN111393861A (en) * | 2020-05-28 | 2020-07-10 | 江苏通用科技股份有限公司 | Graphite-cyclopentadiene resin-rosin composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4341667A (en) * | 1979-05-24 | 1982-07-27 | The Goodyear Tire & Rubber Company | Composition and method of improving the unvulcanized properties of blends containing reclaimed rubber |
| US20010056155A1 (en) * | 2000-05-26 | 2001-12-27 | Gerald Edson | Waterproof, durable products made from recycled rubber products |
| CN101143954A (en) * | 2007-10-24 | 2008-03-19 | 华东理工大学 | Polyvinyl chloride modified resin |
-
2015
- 2015-12-08 CN CN201510895132.XA patent/CN105440382A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4341667A (en) * | 1979-05-24 | 1982-07-27 | The Goodyear Tire & Rubber Company | Composition and method of improving the unvulcanized properties of blends containing reclaimed rubber |
| US20010056155A1 (en) * | 2000-05-26 | 2001-12-27 | Gerald Edson | Waterproof, durable products made from recycled rubber products |
| CN101143954A (en) * | 2007-10-24 | 2008-03-19 | 华东理工大学 | Polyvinyl chloride modified resin |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107211973A (en) * | 2017-06-29 | 2017-09-29 | 界首市汇珠渔具有限公司 | A kind of heatproof high-quality bionic fish bait |
| CN110484004A (en) * | 2019-09-16 | 2019-11-22 | 四川远星橡胶有限责任公司 | A kind of environment protection type easy melts sealing material and preparation method thereof |
| CN111393861A (en) * | 2020-05-28 | 2020-07-10 | 江苏通用科技股份有限公司 | Graphite-cyclopentadiene resin-rosin composite material and preparation method thereof |
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Application publication date: 20160330 |
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