CN104262695A - Flexure-fatigue-resistant rubber material for escalator armrests - Google Patents
Flexure-fatigue-resistant rubber material for escalator armrests Download PDFInfo
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- CN104262695A CN104262695A CN201410436228.5A CN201410436228A CN104262695A CN 104262695 A CN104262695 A CN 104262695A CN 201410436228 A CN201410436228 A CN 201410436228A CN 104262695 A CN104262695 A CN 104262695A
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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
- C08L7/00—Compositions of natural rubber
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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 flexure-fatigue-resistant rubber material for escalator armrests, which is prepared from the following raw materials in parts by weight: 91-100 parts of natural rubber SVR3L, 1-2 parts of linalyl acetate, 2-3 parts of ethylene tar, 0.5-1 part of hexamethyl phosphoryl triamide, 1-2 parts of potassium titanate, 2-3 parts of polyoxytetramethylene glycol, 1-2 parts of sodium dodecylsulfate, 0.5-1 part of methyl 2,2-dithienyl glycollate, 6-10 parts of marble powder, 15-20 parts of light calcium carbonate, 0.6-1 part of crosslinking agent TAC, 1-3 parts of zinc oxide, 0.7-1 part of sulfur, 10-14 parts of dioctyl sebacate and 4-5 parts of modifying assistant. The rubber material has the advantages of favorable flexure cracking resistance, favorable abrasion resistance, high stress at definite elongation, moderate elongation percentage, favorable processability, high surface resistance, high scrub resistance, high sweat resistance, high corrosion resistance and long service life, and is suitable to be used as a rubber material for escalator armrests.
Description
Technical field
The present invention relates generally to rubber materials, particularly relates to a kind of escalator handrail rubber mass of warping strength fatigue.
Background technology
Natural rubber has the characteristics such as excellent rebound resilience, insulativity, water-resisting property and plasticity-, and, after suitable process, also there is oil resistant, the valuable character such as acidproof, alkaline-resisting, heat-resisting, cold-resistant, withstand voltage, wear-resisting, so, there is extensive use.The rain boots such as, used in daily life, hot-water bag, elastic tape; Surgeon's gloves, blood transfusion tube, condom that medical and health industry is used; The various tires that communications and transportation uses; The travelling belt of industrial use, travelling belt, acidproof and alkali-resistant gloves; The irrigation hose agriculturally used, ammoniacal liquor bag; The sounding balloon of meteorologic survey; The sealing of scientific experimentation, shock-absorption; The aircraft that national defence uses, tank, artillery, smoke mask; Even the high-grade, precision and advanced scientific and technical product such as rocket, artificial earth satellite and spaceship all be unable to do without natural rubber.
Summary of the invention
The object of the invention is just to provide a kind of escalator handrail rubber mass of warping strength fatigue.
The present invention is achieved by the following technical solutions:
An escalator handrail rubber mass for warping strength fatigue, it is made up of the raw material of following weight parts:
Natural rubber svr3l 91-100, phanteine 1-2, ethylene bottom oil 2-3, HMPA 0.5-1, potassium titanate 1-2, PTMG 2-3, sodium laurylsulfonate 1-2,2,2-dithienyl methyl glycolate 0.5-1, marble flour 6-10, light calcium carbonate 15-20, linking agent TAC0.6-1, zinc oxide 1-3, sulphur 0.7-1, dioctyl sebacate 10-14, modified additive 4-5;
Described modified additive is made up of each raw material of following weight parts:
Ammonium persulphate 2-3, scolecite 10-16, squalane 1-2, methyl methacrylate 2-4, Microcrystalline Wax 10-15, graphene oxide 0.6-1, distearyl acyl-oxygen sec.-propyl Aluminate 1-2, deionized water 60-70;
Microcrystalline Wax is heated to 80-85 DEG C, adds methyl methacrylate, scolecite, insulated and stirred 3-5 minute, reduction temperature is 50-60 DEG C, adds the 30-40% of distearyl acyl-oxygen sec.-propyl Aluminate weight, 200-300 rev/min of dispersed with stirring 10-20 minute, be cooled to normal temperature, obtain Preblend;
Mixed with graphene oxide by ammonium persulphate, join in deionized water, add above-mentioned Preblend and each raw material of residue after stirring, 800-1000 rev/min of dispersed with stirring 10-15 minute, dries, wears into fine powder, obtain described modified additive.
A preparation method for the escalator handrail rubber mass of warping strength fatigue, is characterized in that comprising the following steps:
(1) dioctyl sebacate is heated to 60-70 DEG C, adds phanteine, potassium titanate, be uniformly mixed 5-7 minute, be cooled to normal temperature, obtain batch mixing a;
(2) sodium laurylsulfonate is joined in 5-6 times of deionized water, after stirring, add above-mentioned batch mixing a, natural rubber svr3l, 100-300 rev/min dispersed with stirring 20-30 minute, raised temperature is 75-80 DEG C, add ethylene bottom oil, be stirred to water and do, obtain modified rubber;
(3) above-mentioned modified rubber is put into Banbury mixer banburying 30-40s, banburying temperature is 70-100 DEG C, add each raw material except zinc oxide, sulphur, mixing 15-20 minute, binder removal, is cooled to less than 50 DEG C, in input mill, add each raw material of residue, thin-pass 3-5 time, obtains the escalator handrail rubber mass of described warping strength fatigue.
Advantage of the present invention is:
Be full of cracks performance that rubber mass of the present invention is warping strength and wear resisting property good, stress at definite elongation is high, and unit elongation is moderate, good processability, and surface resistive is high, and resistance to wiping, resistance to sweat, erosion resistance are strong, are suitable as escalator handrail rubber mass, long service life.In modified additive of the present invention, ammonium persulphate, scolecite is mixed and modified, not only accomplish solid waste renewable resources, effectively can also improve the mechanical property of finished product, strengthen resistance and physical strength.
Embodiment
Embodiment 1
An escalator handrail rubber mass for warping strength fatigue, it is made up of the raw material of following weight parts:
Natural rubber svr3l 100, phanteine 2, ethylene bottom oil 3, HMPA 0.5, potassium titanate 1, PTMG 3, sodium laurylsulfonate 2,2,2-dithienyl methyl glycolate 0.5, marble flour 6-10, light calcium carbonate 20, linking agent TAC0.6, zinc oxide 3, sulphur 0.7, dioctyl sebacate 14, modified additive 5;
Described modified additive is made up of each raw material of following weight parts:
Ammonium persulphate 3, scolecite 16, squalane 2, methyl methacrylate 4, Microcrystalline Wax 15, graphene oxide 0.6, distearyl acyl-oxygen sec.-propyl Aluminate 1, deionized water 70;
Microcrystalline Wax is heated to 85 DEG C, adds methyl methacrylate, scolecite, insulated and stirred 5 minutes, reducing temperature is 60 DEG C, adds 40%, 300 revs/min of dispersed with stirring 20 minutes of distearyl acyl-oxygen sec.-propyl Aluminate weight, is cooled to normal temperature, obtains Preblend;
Mixed with graphene oxide by ammonium persulphate, join in deionized water, add above-mentioned Preblend and each raw material of residue after stirring, 1000 revs/min of dispersed with stirring 15 minutes, dry, wear into fine powder, obtain described modified additive.
A preparation method for the escalator handrail rubber mass of warping strength fatigue, is characterized in that comprising the following steps:
(1) dioctyl sebacate is heated to 70 DEG C, adds phanteine, potassium titanate, be uniformly mixed 5-7 minute, be cooled to normal temperature, obtain batch mixing a;
(2) joined by sodium laurylsulfonate in 6 times of deionized waters, add above-mentioned batch mixing a, natural rubber svr3l after stirring, 300 revs/min of dispersed with stirring 30 minutes, raised temperature is 80 DEG C, adds ethylene bottom oil, is stirred to water and does, obtain modified rubber;
(3) above-mentioned modified rubber is put into Banbury mixer banburying 40s, banburying temperature is 100 DEG C, add each raw material except zinc oxide, sulphur, mixing 20 minutes, binder removal, was cooled to less than 50 DEG C, in input mill, add each raw material of residue, thin-pass 3 times, obtains the escalator handrail rubber mass of described warping strength fatigue.
Performance test:
Tensile strength: 13.6Mpa;
Compression set (70 DEG C × 72h): 12.3%;
70 DEG C × 72h air oven aging test:
Tensile strength at yield reduced rate: 5.0%, elongation at break reduced rate: 7.9%;
Ozone resistance (50ppm × 40 DEG C × 72h): flawless.
Claims (2)
1. an escalator handrail rubber mass for warping strength fatigue, is characterized in that what it was made up of the raw material of following weight parts:
Natural rubber svr3l 91-100, phanteine 1-2, ethylene bottom oil 2-3, HMPA 0.5-1, potassium titanate 1-2, PTMG 2-3, sodium laurylsulfonate 1-2,2,2-dithienyl methyl glycolate 0.5-1, marble flour 6-10, light calcium carbonate 15-20, linking agent TAC0.6-1, zinc oxide 1-3, sulphur 0.7-1, dioctyl sebacate 10-14, modified additive 4-5;
Described modified additive is made up of each raw material of following weight parts:
Ammonium persulphate 2-3, scolecite 10-16, squalane 1-2, methyl methacrylate 2-4, Microcrystalline Wax 10-15, graphene oxide 0.6-1, distearyl acyl-oxygen sec.-propyl Aluminate 1-2, deionized water 60-70;
Microcrystalline Wax is heated to 80-85 DEG C, adds methyl methacrylate, scolecite, insulated and stirred 3-5 minute, reduction temperature is 50-60 DEG C, adds the 30-40% of distearyl acyl-oxygen sec.-propyl Aluminate weight, 200-300 rev/min of dispersed with stirring 10-20 minute, be cooled to normal temperature, obtain Preblend;
Mixed with graphene oxide by ammonium persulphate, join in deionized water, add above-mentioned Preblend and each raw material of residue after stirring, 800-1000 rev/min of dispersed with stirring 10-15 minute, dries, wears into fine powder, obtain described modified additive.
2. a preparation method for the escalator handrail rubber mass of warping strength fatigue as claimed in claim 1, is characterized in that comprising the following steps:
(1) dioctyl sebacate is heated to 60-70 DEG C, adds phanteine, potassium titanate, be uniformly mixed 5-7 minute, be cooled to normal temperature, obtain batch mixing a;
(2) sodium laurylsulfonate is joined in 5-6 times of deionized water, after stirring, add above-mentioned batch mixing a, natural rubber svr3l, 100-300 rev/min dispersed with stirring 20-30 minute, raised temperature is 75-80 DEG C, add ethylene bottom oil, be stirred to water and do, obtain modified rubber;
(3) above-mentioned modified rubber is put into Banbury mixer banburying 30-40s, banburying temperature is 70-100 DEG C, add each raw material except zinc oxide, sulphur, mixing 15-20 minute, binder removal, is cooled to less than 50 DEG C, in input mill, add each raw material of residue, thin-pass 3-5 time, obtains the escalator handrail rubber mass of described warping strength fatigue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436228.5A CN104262695A (en) | 2014-08-29 | 2014-08-29 | Flexure-fatigue-resistant rubber material for escalator armrests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436228.5A CN104262695A (en) | 2014-08-29 | 2014-08-29 | Flexure-fatigue-resistant rubber material for escalator armrests |
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| CN104262695A true CN104262695A (en) | 2015-01-07 |
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| CN201410436228.5A Pending CN104262695A (en) | 2014-08-29 | 2014-08-29 | Flexure-fatigue-resistant rubber material for escalator armrests |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750585A (en) * | 2016-11-23 | 2017-05-31 | 安徽美腾特种电缆材料有限公司 | A kind of rubber pad for rail plate and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101845156A (en) * | 2010-06-08 | 2010-09-29 | 山东八一轮胎制造有限公司 | Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof |
| US20120152429A1 (en) * | 1999-01-11 | 2012-06-21 | Stephen Lee Spruell | Self-Sealing Electrical Cable Using Rubber Resins |
| CN103450591A (en) * | 2013-08-22 | 2013-12-18 | 吴江骏达电梯部件有限公司 | Anti-static rubber belt for escalator and preparation method thereof |
| CN103524800A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Bending resistant sheath material for wires and cables, and preparation method thereof |
| CN103834074A (en) * | 2014-03-14 | 2014-06-04 | 太仓冠联高分子材料有限公司 | Elevator handrail butadiene styrene rubber high in stress at definite elongation and resistant to flexible fatigue and preparation method thereof |
-
2014
- 2014-08-29 CN CN201410436228.5A patent/CN104262695A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120152429A1 (en) * | 1999-01-11 | 2012-06-21 | Stephen Lee Spruell | Self-Sealing Electrical Cable Using Rubber Resins |
| CN101845156A (en) * | 2010-06-08 | 2010-09-29 | 山东八一轮胎制造有限公司 | Anti-fatigue and deflection-resistant tire sidewall rubber and production process thereof |
| CN103450591A (en) * | 2013-08-22 | 2013-12-18 | 吴江骏达电梯部件有限公司 | Anti-static rubber belt for escalator and preparation method thereof |
| CN103524800A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Bending resistant sheath material for wires and cables, and preparation method thereof |
| CN103834074A (en) * | 2014-03-14 | 2014-06-04 | 太仓冠联高分子材料有限公司 | Elevator handrail butadiene styrene rubber high in stress at definite elongation and resistant to flexible fatigue and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750585A (en) * | 2016-11-23 | 2017-05-31 | 安徽美腾特种电缆材料有限公司 | A kind of rubber pad for rail plate and preparation method thereof |
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Application publication date: 20150107 |
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