CN105602056A - Heat-resistant agent containing pre-dispersed masterbatch for hydrogenated nitrile butadiene rubber and preparation method of heat-resistant agent containing pre-dispersed masterbatch - Google Patents
Heat-resistant agent containing pre-dispersed masterbatch for hydrogenated nitrile butadiene rubber and preparation method of heat-resistant agent containing pre-dispersed masterbatch Download PDFInfo
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- CN105602056A CN105602056A CN201610027882.XA CN201610027882A CN105602056A CN 105602056 A CN105602056 A CN 105602056A CN 201610027882 A CN201610027882 A CN 201610027882A CN 105602056 A CN105602056 A CN 105602056A
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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
- C08L15/00—Compositions of rubber derivatives
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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
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention discloses heat-resistant agent containing pre-dispersed masterbatch for hydrogenated nitrile butadiene rubber and a preparation method of the heat-resistant agent containing pre-dispersed masterbatch. The heat-resistant agent containing pre-dispersed masterbatch comprises, by weight, 10-15 parts of rubber, 45-55 parts of heat-resistant agent, 20-25 parts of anti-ageing agent, 8-12 parts of plasticizing agent, 1-3 parts of processing agent, 1-3 parts of filling agent and 1-3 parts of physical protecting agent. The preparation method includes: (1) internal mixing, to be more specific, feeding the heat-resistant agent, the anti-ageing agent, the plasticizing agent, the processing agent, the filling agent and the physical protecting agent into an internal mixer according to a certain proportion, mixing for about 30s, and adding a rubber carrier, wherein the temperature is 45-50 DEG C, and the time is 8-12min; (2) granulating, to be more specific, feeding into a granulating machine for granulating after mixing is finished. The pre-dispersed masterbatch is high in dispersity in hydrogenated nitrile butadiene rubber compound, service lives of hydrogenated nitrile butadiene rubber products can be prolonged, and ageing resistance and thermal stability of the hydrogenated nitrile butadiene rubber products can be enhanced while water solubility of the hydrogenated nitrile butadiene rubber products is improved.
Description
Technical field
The present invention relates to a kind of rubber grain, particularly relate to the pre-dispersed rubber master batch of a kind of hydrogenated nitrile-butadiene rubber heat-resistant agentGrain and preparation method thereof.
Background technology
Hydrogenated nitrile-butadiene rubber is a kind of with respect to other synthetic rubber, and various aspects of performance is the novel rubber of comparative superiority allGlue, should have field to relate in oil field anti-sprayer sizing material, screw drill in cone bit bearing O type rubber seal, oil fieldThe rubber such as elastomer stator, rubber roller for industry, vibration-absorptive material, electric wire for tool; These fields have a feature substantially,Operating ambient temperature is generally higher, therefore requires hydrogenated nitrile-butadiene rubber to have outstanding heat resistance, the hydrogenation fourth of prior artWhen nitrile rubber goods are worked in the situation that environment temperature is higher, easily cause the cracking of main chain, make its charing or embrittlement, use the longevityLife shortens.
Summary of the invention
The present invention be the technical problem that will solve be to provide a kind of hydrogenated nitrile-butadiene rubber pre-dispersed masterbatch particles of heat-resistant agent andIts preparation method. Hydrogenated nitrile-butadiene rubber prepared by the present invention effectively improves with pre-dispersed masterbatch particles of heat-resistant agent and preparation method thereofDispersiveness in hydrogenated nitrile-butadiene rubber elastomeric compound, can improve service life in hydrogenated nitrile-butadiene rubber goods, strengthen that it is resistance toAging, especially heat endurance, and improve that it is water-soluble simultaneously.
Technical scheme of the present invention is: the pre-dispersed masterbatch particles of heat-resistant agent for a kind of hydrogenated nitrile-butadiene rubber, and said composition comprises:In weight portion, 10～15 parts of rubber, 45～55 parts of heat-resistant agents, 20～25 parts, age resistor, 8～12 parts, plasticizer, processing aid 11～3 part of～3 parts, 1～3 part of filler and physical protection agent.
To being further improved to of technique scheme, the pre-dispersed masterbatch particles of heat-resistant agent for described hydrogenated nitrile-butadiene rubber,It is characterized in that said composition comprises: in weight portion, 45 parts of heat-resistant agents, age resistor is 25 parts, and plasticizer is 10 parts, and processing helpsAgent is 2, and filler is 2, and physical protection agent is 2 parts, 14 parts of rubber.
To being further improved to of technique scheme, the pre-dispersed masterbatch particles of heat-resistant agent for described hydrogenated nitrile-butadiene rubber,It is characterized in that said composition comprises: in weight portion, 50 parts of heat-resistant agents, age resistor is 23 parts, and plasticizer is 12 parts, and processing helpsAgent is 2, and filler is 2, and physical protection agent is 2 parts, 9 parts of rubber.
To being further improved to of technique scheme, the pre-dispersed masterbatch particles of heat-resistant agent for described hydrogenated nitrile-butadiene rubber,It is characterized in that said composition comprises: in weight portion, 55 parts of heat-resistant agents, age resistor is 20 parts, and plasticizer is 8 parts, and processing helpsAgent is 1, and filler is 1, and physical protection agent is 2 parts, 13 parts of rubber.
To being further improved to of technique scheme, the pre-dispersed masterbatch particles of heat-resistant agent for described hydrogenated nitrile-butadiene rubber,It is characterized in that: described rubber is hydrogenated nitrile-butadiene rubber; Described heat-resistant agent is LiCO3; Described age resistor be RD orOne or more in 4010NA; Described plasticizer is TP95 or TP150; Described filler is precipitated calcium carbonate; DescribedPhysical protection agent be microwax; Described processing aid is one in stearic acid, stearate or pentaerythrite stearateKind or several.
A preparation method for the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber, comprises the steps:
(1) banburying: get rubber, heat-resistant agent, age resistor, plasticizer, processing aid, fill out by proportioning claimed in claim 1Fill agent and physical protection agent in banbury at 50～65 DEG C of mixing 8～12min;
(2) granulation: by the material mixing granulation at 55～65 DEG C.
To being further improved to of technique scheme, described age resistor is RD, and plasticizer is TP95, and filler is lightMatter calcium carbonate, physical protection agent is microwax, processing aid is pentaerythrite stearate.
To being further improved to of technique scheme, in described banburying step, feeding sequence is heat-resistant agent, anti-oldAgent, plasticizer, processing aid, filler, physical protection agent and rubber.
To being further improved to of technique scheme, in described granulation step, adopt bipyramid granulator granulation, simultaneouslyThe gun barrel of Screw Extrusion part is controlled to 45～50 DEG C.
To being further improved to of technique scheme, also comprise filtration step, raw material is first after mixer mixingSend into filter and filter, after having filtered, send into again comminutor and carry out granulation.
Beneficial effect of the present invention is:
1, pre-dispersed masterbatch particles provided by the present invention, the dispersiveness in hydrogenated nitrile-butadiene rubber elastomeric compound is fairly good, energyEnough improve hydrogenated nitrile-butadiene rubber goods service life, strengthen its resistance to ag(e)ing, especially heat endurance, and improve it simultaneouslyWater-soluble.
2, the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber of the present invention, from the product of source, cost and the product of raw materialMatter has been carried out meticulous design, and price is suitable, splendid to the thermal stability result of hydrogenated nitrile-butadiene rubber, can obviously improve hydrogenation fourthService life of nitrile rubber goods, strengthen its resistance to ag(e)ing; The pre-dispersed masterbatch particles storage of heat-resistant agent for hydrogenated nitrile-butadiene rubber of the present inventionDeposit and facilitate not conglomeration under room temperature, make batching convenient, accurately, can enhance productivity, reduce production costs, and be applicable to hydrogenation fourthThe industrial product of nitrile rubber class.
Brief description of the drawings
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The pre-dispersed masterbatch particles composition of heat-resistant agent for a kind of hydrogenated nitrile-butadiene rubber of embodiment mono-: in weight portion, heat-resistant agent45 parts, age resistor is 25 parts, and plasticizer is 10 parts, and processing aid is 2, and filler is 2, and physical protection agent is 2 parts, rubber 14Part.
The preparation method of this pre-dispersed masterbatch particles as shown in Figure 1, comprises the steps:
S1 banburying step: banbury is preheated to 55 DEG C, according to proportion speed weighed heat-resistant agent, age resistor, plasticizer,Processing aid, filler, physical protection agent and rubber drop into and in banbury, carry out mixingly, and mixing time is 10min left and right;
S2 filtration step: first send into filter after raw material is mixing and filter, filter adopts more than 120 order numbersScreen cloth, to filter the large granular impurity in gluey material, is then sent into material comminutor and is carried out granulation;
S3 granulation step: material is mixing to be fed through bipyramid comminutor after completing and to carry out granulation, by the gun barrel temperature of comminutorBe controlled at 65 DEG C of 50 DEG C and the controls of die head drop temperature, material through die head extrude and pelletizing after obtain good pre-dispersed masterbatch particlesFinished product, obtains the pre-dispersed rubber master batch of a kind of acrylonitrile-butadiene rubber of embodiment mono-. After tested, this masterbatch particles Mooney point ML (1+4) min,50 DEG C of density while being 54.69,20 DEG C are, 2.56g/cm3。
The composition of pre-dispersed masterbatch particles for a kind of acrylonitrile-butadiene rubber of embodiment bis-: in weight portion, 48 parts of heat-resistant agents, anti-oldAgent is 23 parts, and plasticizer is 12 parts, and processing aid is 2, and filler is 2, and physical protection agent is 2 parts, 11 parts of rubber; This masterbatch particlesPreparation method with example one; The pre-dispersed masterbatch particles of a kind of acrylonitrile-butadiene rubber of the embodiment bis-obtaining. After tested, this masterbatch particles doorBuddhist nun is worth ML (1+4) min, and 50 DEG C of density while being 58.07,20 DEG C are, 2.62g/cm3。
The composition of pre-dispersed masterbatch particles for a kind of acrylonitrile-butadiene rubber of embodiment tri-: in weight portion, 50 parts of heat-resistant agents, anti-oldAgent is 23 parts, and plasticizer is 12 parts, and processing aid is 2, and filler is 2, and physical protection agent is 2 parts, 9 parts of rubber. ; This masterbatch particlesPreparation method with example one; The pre-dispersed masterbatch particles of a kind of acrylonitrile-butadiene rubber of the embodiment tri-obtaining. After tested, this masterbatch particles doorBuddhist nun is worth ML (1+4) min, and 50 DEG C of density while being 59.73,20 DEG C are, 2.58g/cm3。
The composition of pre-dispersed masterbatch particles for a kind of acrylonitrile-butadiene rubber of embodiment tetra-: in weight portion, 52 parts of heat-resistant agents, anti-oldAgent is 22 parts, and plasticizer is 10 parts, and processing aid is 2, and filler is 2, and physical protection agent is 2 parts, 10 parts of rubber. ; This rubber master batchThe preparation method of grain is with example one; The pre-dispersed masterbatch particles of a kind of acrylonitrile-butadiene rubber of the embodiment tetra-obtaining. After tested, this masterbatch particlesMooney point ML (1+4) min, 50 DEG C of density while being 58.53,20 DEG C are, 2.60g/cm3。
The composition of pre-dispersed masterbatch particles for a kind of acrylonitrile-butadiene rubber of embodiment five: in weight portion, 55 parts of heat-resistant agents, anti-oldAgent is 20 parts, and plasticizer is 8 parts, and processing aid is 1, and filler is 1, and physical protection agent is 2 parts, 13 parts of rubber; This masterbatch particlesPreparation method with example one; The pre-dispersed masterbatch particles of a kind of acrylonitrile-butadiene rubber of the embodiment five obtaining. After tested, this masterbatch particles doorBuddhist nun is worth ML (1+4) min, and 50 DEG C of density while being 60.33,20 DEG C are, 2.67g/cm3。
Hydrogenated nitrile-butadiene rubber provided by the invention with the pre-dispersed masterbatch particles of heat-resistant agent by with generally use in the marketResistance to xanthochromia promote to contrast;
Experimental technique:
1. experiment basic recipe:
2. contrast: embodiment 1:4phr
Embodiment 2:4phr
Embodiment 3:4phr
Embodiment 4:4phr
Embodiment 5:4phr
Product: 4phr is generally used in market
3. become elastomeric compound with the banburying of 1.5L banbury, take mechanical mill slice by profit, additional vulcanizing agent DCP, uses excellentAgree the curing curve (170 DEG C * 6min) of U-CAN without rotor vulcameter test sizing material, compression molding machine burning sheet is used ZG-UL simultaneouslyVentilation-type aging case is tested at 150 DEG C of * 72h condition test heat-proof agings;
Test result: table 1: test result contrast table
| Test event | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Product is generally used in market |
| MH | 10.34 | 10.438 | 10.957 | 10.871 | 10.533 | 10.245 |
| TS2 | 1.66 | 1.67 | 1.67 | 1.65 | 1.66 | 1.69 |
| TC90 | 13.699 | 13.710 | 13.695 | 13.698 | 13.720 | 13.772 |
| Aging coefficient | 0.853 | 0.865 | 0.879 | 0.870 | 0.869 | 0.806 |
| Firmness change degree | +5.5 | +5.9 | +5.1 | +5.4 | +5.5 | +7.0 |
As seen from Table 1, a kind of acrylonitrile-butadiene rubber of five embodiment of the present invention with pre-dispersed masterbatch particles product agingThe performance of the aspects such as coefficient and firmness change degree is all better than the generally product of use of market, and wherein a kind of acrylonitrile-butadiene rubber in example 3 is usedPre-dispersed masterbatch particles properties of product the best. Therefore adopt pre-dispersed masterbatch particles product for a kind of acrylonitrile-butadiene rubber of the present invention, itsDispersiveness in hydrogenated nitrile-butadiene rubber elastomeric compound is fairly good, can improve service life, enhancing in hydrogenated nitrile-butadiene rubber goodsIts resistance to ag(e)ing, especially heat endurance, and improve that it is water-soluble simultaneously.
That in above-described embodiment and description, describes just illustrates principle of the present invention and most preferred embodiment, is not departing from thisUnder the prerequisite of invention spirit and scope, the present invention also has various changes and modifications, and these changes and improvements all fall into and require to protectIn the scope of the invention of protecting.
Claims (10)
1. the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber, said composition comprises: in weight portion, rubber 10～15Part, 45～55 parts of heat-resistant agents, 20～25 parts, age resistor, 8～12 parts, plasticizer, 1～3 part of processing aid, 1～3 part of filler and1～3 part of physical protection agent.
2. the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 1, is characterized in that: said compositionComprise: in weight portion, 45 parts of heat-resistant agents, age resistor is 25 parts, and plasticizer is 10 parts, and processing aid is 2, and filler is 2, thingReason protective agent is 2 parts, 14 parts of rubber.
3. the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 1, is characterized in that said compositionComprise: in weight portion, 50 parts of heat-resistant agents, age resistor is 23 parts, and plasticizer is 12 parts, and processing aid is 2, and filler is 2, thingReason protective agent is 2 parts, 9 parts of rubber.
4. the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 1, is characterized in that said compositionComprise: in weight portion, 55 parts of heat-resistant agents, age resistor is 20 parts, and plasticizer is 8 parts, and processing aid is 1, and filler is 1, thingReason protective agent is 2 parts, 13 parts of rubber.
5. the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 1, is characterized in that: described rubberGlue is hydrogenated nitrile-butadiene rubber; Described heat-resistant agent is LiCO3; Described age resistor is a kind of or several in RD or 4010NAKind; Described plasticizer is TP95 or TP150; Described filler is precipitated calcium carbonate; Described physical protection agent is crystalliteWax; Described processing aid is one or more in stearic acid, stearate or pentaerythrite stearate.
6. a preparation method for the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber, comprises the steps:
(1) banburying: get rubber, heat-resistant agent, age resistor, plasticizer, processing aid, filler by proportioning claimed in claim 1With physical protection agent in banbury at 50～65 DEG C of mixing 8～12min;
(2) granulation: by the material mixing granulation at 55～65 DEG C.
7. the preparation method of the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 6, its feature existsIn: described age resistor is RD, and plasticizer is TP95, and filler is precipitated calcium carbonate, and physical protection agent is microwax, and processing helpsAgent is pentaerythrite stearate.
8. the preparation method of the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 6, its feature existsIn: in described banburying step, feeding sequence is heat-resistant agent, age resistor, plasticizer, processing aid, filler, physical protection agentAnd rubber.
9. the preparation method of the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 6, its feature existsIn: in described granulation step, adopt bipyramid granulator granulation, the gun barrel of Screw Extrusion part is controlled to 45～50 simultaneously℃。
10. the preparation method of the pre-dispersed masterbatch particles of heat-resistant agent for hydrogenated nitrile-butadiene rubber according to claim 6, its feature existsIn: also comprise filtration step, raw material is first sent into filter and is filtered after mixer mixing, after having filtered, sends into againComminutor carries out granulation.
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| CN201610027882.XA CN105602056A (en) | 2016-01-15 | 2016-01-15 | Heat-resistant agent containing pre-dispersed masterbatch for hydrogenated nitrile butadiene rubber and preparation method of heat-resistant agent containing pre-dispersed masterbatch |
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| CN107189148A (en) * | 2017-07-17 | 2017-09-22 | 南京金三力高分子科技有限公司 | Colored hydrogenated nitrile-butadiene rubber material of a kind of high temperature resistant and preparation method thereof |
| CN107964144A (en) * | 2016-10-18 | 2018-04-27 | 中国石油化工股份有限公司 | A kind of rubber composition and vulcanization rubber and sebific duct |
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Application publication date: 20160525 |