CN103665449B - A kind of inflating valve sizing material - Google Patents
A kind of inflating valve sizing material Download PDFInfo
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- CN103665449B CN103665449B CN201310397127.7A CN201310397127A CN103665449B CN 103665449 B CN103665449 B CN 103665449B CN 201310397127 A CN201310397127 A CN 201310397127A CN 103665449 B CN103665449 B CN 103665449B
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Abstract
The invention discloses a kind of inflating valve sizing material, comprise the component of following weight percent: natural rubber 20% ~ 40%; Ethylene-propylene rubber(EPR) 5% ~ 8%; Styrene-butadiene rubber(SBR) 5% ~ 7%: filler reinforcement system 35% ~ 45%; Preventing aging system 2% ~ 4%; Cobalt salt 0.4% ~ 0.6%; Silica-hexa-resorcinol system 4.5% ~ 4.7%; Tenderizer 4% ~ 6%; Vulcanization system 1% ~ 3%; Surfactant system 2.4% ~ 2.6%.Natural rubber is used to replace the sizing material part in inflating valve in the present invention, not only significantly reduce sizing material cost, and provide better physical and mechanical properties for rubber, in formula, add original unwanted preventing aging system in addition carry out and use, this preventing aging system can solve the decline of the resistance to quiet dynamic ozone ability of inflating valve sizing material and ageing-resistant performance, promoter action can be played to sizing material and metal-cored bonding simultaneously, adapted a small amount of cobalt salt and silica-hexa-resorcinol system in another batching, add the bounding force of sizing material, more packing strengthening agent has been used in batching, ensure that the physical and mechanical properties of sizing material, and cost is declined further.
Description
Technical field
The present invention relates to a kind of sizing material, specifically, relate to a kind of inflating valve sizing material.
Background technology
Domestic a lot of producer is when producing inflating valve sizing material, need to soak or brushing layer of adhesive on metal-cored, to make rubber and metal-cored firm connection, thus there is actual use properties, but application of adhesive can cause production scene to there is a large amount of toxic and harmful, harm for human body is very large, and most tackiness agent has much volatile, inflammable solvent, ventilate not smooth easily initiation fire, and complex production process, bond properties is larger by the impact of tackiness agent, easily there is larger fluctuation in quality product, the equipment of brush coating purchased specially by another need or personnel carry out brush coating operation, also need special equipment after brush coating operation and carry out drying baking, take larger place and personnel, also larger investment burden is caused to manufacturing enterprise, another inflating valve sizing material many employings ethylene-propylene rubber(EPR) is produced, such rubber price is higher, larger cost burden is caused to inflating valve manufacturing enterprise.
Summary of the invention
Object of the present invention is just to provide a kind of inflating valve sizing material, its have with low cost, inflating valve compound physical mechanical property can be kept while reduce application of adhesive process in inflating valve production process, reduce in the coating course of processing because adhesive solvent volatilizees the personnel and environmental injury caused, improve inflating valve production efficiency simultaneously, improve inflating valve quality product, reduce the advantage of cost of investment.
For solving the problem, the invention provides a kind of inflating valve sizing material, comprise the component of following weight percent: natural rubber 20% ~ 40%, ethylene-propylene rubber(EPR) 5% ~ 8%, styrene-butadiene rubber(SBR) 5 ~ 7%, filler reinforcement system 35% ~ 45%, preventing aging system 2% ~ 4%, cobalt salt 0.4% ~ 0.6%, silica-hexa-resorcinol system 4.5% ~ 4.7%, tenderizer 4% ~ 6%, vulcanization system 1% ~ 3% and surfactant system 2.4% ~ 2.6%.
Further, described inflating valve sizing material comprises the component of following weight percent: natural rubber 24% ~ 36%, ethylene-propylene rubber(EPR) 5.2% ~ 7.8%, styrene-butadiene rubber(SBR) 5.2 ~ 6.8%, filler reinforcement system 37% ~ 43%, preventing aging system 2.2% ~ 3.8%, cobalt salt 0.42% ~ 0.58%, silica-hexa-resorcinol system 4.52% ~ 4.68%, tenderizer 4.2% ~ 5.8%, vulcanization system 1.2% ~ 2.8% and surfactant system 2.42% ~ 2.58%.
Further, described inflating valve sizing material comprises the component of following weight percent: natural rubber 28% ~ 32%, ethylene-propylene rubber(EPR) 5.5% ~ 7.5%, styrene-butadiene rubber(SBR) 5.5 ~ 6.5%, filler reinforcement system 39% ~ 41%, preventing aging system 2.5% ~ 3.5%, cobalt salt 0.45% ~ 0.55%, silica-hexa-resorcinol system 4.55% ~ 4.65%, tenderizer 4.5% ~ 5.5%, vulcanization system 1.5% ~ 2.5% and surfactant system 2.45% ~ 2.55%.
Further, described inflating valve sizing material comprises the component of following weight percent: natural rubber 30%, ethylene-propylene rubber(EPR) 6.5%, styrene-butadiene rubber(SBR) 6%, filler reinforcement system 40%; Preventing aging system 3%, cobalt salt 0.5%, silica-hexa-resorcinol system 4.5%, tenderizer 5%, vulcanization system 2% and surfactant system 2.5%.
Further, described silica-hexa-resorcinol system comprises the component of following weight percent: white carbon black 3.5% ~ 3.9%, adhesive RS 0.4% ~ 0.8% and adhesive A 0.18% ~ 0.21%.
Further, the preparation process of described inflating valve sizing material is as follows:
(1) get the raw materials ready, prepare described natural rubber, ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR), filler reinforcement system, preventing aging system, cobalt salt system, white carbon black, adhesive RS, adhesive A, tenderizer, vulcanization system and surfactant system respectively according to weight percent;
(2) first time banburying, first mixing by carrying out 50S in the natural gum material prepared in step (1), ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR), preventing aging system, cobalt salt system, adhesive RS and surfactant system input Banbury mixer, again filler reinforcement system and white carbon black are added described Banbury mixer and continue mixing 60S, afterwards the tenderizer prepared in step (1) is dropped into that to proceed 40S in described Banbury mixer mixing; Then mention the floating weight of described Banbury mixer and carry out cleaning action, then proceeding the mixing rear binder removal of 20S;
(3) first time opens refining, sizing material prepared by step (2) is pressed into about 9mm on a mill until thick, the film that 400mm is wide;
(4) park stand-by, film prepared by step (3) is positioned over the cooling carrying out at least 12H in film cooler;
(5) second time banburying, the vulcanization system prepare step (1) and adhesive A and the obtained film of step (4) again drop into Banbury mixer and carry out the mixing of 40S, then propose hammer cleaning to described Banbury mixer, then proceed the mixing rear binder removal of 40S;
(6) second time opens refining, and sizing material discharge step (5) prepared is in mill and cool;
(7) packed for standby use, carries out packed for standby use to sizing material prepared by step (6).
Further, natural rubber, ethylene-propylene rubber(EPR) and styrene-butadiene rubber(SBR) in described step (1) are got the raw materials ready together, and described preventing aging system, adhesive RS, zinc oxide and stearic acid are got the raw materials ready together; Together with described adhesive A is got the raw materials ready with vulcanization system; Described infill system, white carbon black and tenderizer are equipped with respectively.
Further, the dump temperature in described step (2) and step (5) is 80 ± 5 DEG C.
Further, described preventing aging system comprises the component of following weight percent: p phenylenediamine type antioxidant 1.0% ~ 1.3%, anti-aging agent RD 0.3% ~ 0.5%, wax class anti-aging agent 0.45% ~ 0.75% and ketoamine class antioxidant BLE-W1.0% ~ 1.3%, and described surfactant system comprises the component of following weight percent: zinc oxide 1.5% ~ 2.5% and stearic acid 0.3% ~ 0.5%; Described filler reinforcement system comprises carbon black and/or calcium carbonate, and described tenderizer is naphthenic oil.
Traditional comparatively high-grade inflating valve sizing material selects simple ethylene-propylene rubber(EPR) to produce, because ethylene-propylene rubber(EPR) price is high, cause the problem that inflating valve cost is higher, greatly reduce the economic benefit of enterprise, natural rubber is used to replace the sizing material part in inflating valve in the present invention, this object has two, one is significantly reduce sizing material cost, one for providing better physical and mechanical properties, but the resistance to ozone of sizing material can be caused again thus simultaneously, the decline of ageing-resistant performance, therefore the present invention carry out sizing material substitute while, in order to solve the problem that ageing resistance declines, in formula, add original unwanted preventing aging system carry out and use, this preventing aging system can solve the decline of the resistance to quiet dynamic ozone ability of inflating valve sizing material and ageing-resistant performance, promoter action can be played to sizing material and metal-cored bonding simultaneously, the a small amount of cobalt salt of adapted in another batching, this is for strengthening the major measure of sizing material and metal-cored bounding force, in sizing material, employ silica-hexa-resorcinol system separately simultaneously, this is for increasing another means of bounding force, more packing strengthening agent has been used in batching, ensure that the physical and mechanical properties of sizing material, and cost is declined further.
Also with p phenylenediamine type antioxidant, anti-aging agent RD and wax class anti-aging agent in preventing aging system, synergistic effect can be realized.
Embodiment
The following detailed description of specific embodiments of the invention.
Embodiment 1
A kind of inflating valve sizing material, comprises the component of following weight percent:
Natural rubber 20%;
Ethylene-propylene rubber(EPR) 8%;
Styrene-butadiene rubber(SBR) 7%;
Carbon black 45%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.5%;
Wax class anti-aging agent 0.75%;
Ketoamine class antioxidant BLE-W1.45%;
Cobalt salt 0.6%;
White carbon black 3.8%;
Adhesive RS 0.72%;
Adhesive A 0.18%;
Naphthenic oil tenderizer 6%;
Vulcanization system 2.1%;
Zinc oxide 2.2%;
Stearic acid 0.4%.
The preparation process of above-mentioned inflating valve sizing material is as follows:
(1) get the raw materials ready, described natural rubber, ethylene-propylene rubber(EPR), carbon black, p phenylenediamine type antioxidant, cobalt salt system, white carbon black, adhesive RS, adhesive A, naphthenic oil tenderizer, vulcanization system, zinc oxide, stearic acid and styrene-butadiene rubber(SBR) is prepared respectively according to above-mentioned weight percent, wherein natural rubber, ethylene-propylene rubber(EPR) and styrene-butadiene rubber(SBR) are got the raw materials ready together, and p phenylenediamine type antioxidant, adhesive RS, zinc oxide and stearic acid are got the raw materials ready together; Together with adhesive A is got the raw materials ready with vulcanization system; Carbon black, white carbon black and naphthenic oil tenderizer are equipped with respectively;
(2) first time banburying, first mixing by carrying out 50S in the natural gum material prepared in step (1), ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR), p phenylenediamine type antioxidant, cobalt salt system, adhesive RS, zinc oxide and stearic acid input Banbury mixer, again carbon black and white carbon black are added described Banbury mixer and continue mixing 60S, afterwards the naphthenic oil tenderizer prepared in step (1) is dropped into that to proceed 40S in described Banbury mixer mixing; Then mention the floating weight of described Banbury mixer and carry out cleaning action, then proceed the mixing rear binder removal of 20S, dump temperature is 80 ± 5 DEG C;
(3) first time opens refining, sizing material prepared by step (2) is pressed into about 9mm on a mill until thick, the film that 400mm is wide;
(4) park stand-by, film prepared by step (3) is positioned over the cooling carrying out at least 12H in film cooler;
(5) second time banburying, the vulcanization system prepare step (1) and adhesive A and the obtained film of step (4) again drop into Banbury mixer and carry out the mixing of 40S, propose hammer cleaning to described Banbury mixer again, then proceed the mixing rear binder removal of 40S, dump temperature is 80 ± 5 DEG C;
(6) second time opens refining, and sizing material discharge step (5) prepared is in mill and cool;
(7) packed for standby use, carries out packed for standby use to sizing material prepared by step (6).
Embodiment 2
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 35%;
Ethylene-propylene rubber(EPR) 5%;
Styrene-butadiene rubber(SBR) 6%;
Carbon black 35%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.5%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.4%;
White carbon black 3.9%;
Adhesive RS 0.4%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5.7%;
Vulcanization system 3%;
Zinc oxide 2%;
Stearic acid 0.4%.
Embodiment 3
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 39.49%;
Ethylene-propylene rubber(EPR) 6%;
Styrene-butadiene rubber(SBR) 5%;
Carbon black 35%;
P phenylenediamine type antioxidant 1%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.5%;
White carbon black 3.5%;
Adhesive RS 0.8%;
Adhesive A 0.21%;
Tenderizer 4%;
Vulcanization system 1%;
Zinc oxide 2.1%;
Stearic acid 0.4%.
Embodiment 4
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 40%;
Ethylene-propylene rubber(EPR) 5.49%;
Styrene-butadiene rubber(SBR) 5%;
Calcium carbonate 35%;
P phenylenediamine type antioxidant 1%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.5%;
White carbon black 3.5%;
Adhesive RS 0.8%;
Adhesive A 0.21%;
Tenderizer 4%;
Vulcanization system 1%;
Zinc oxide 2.1%;
Stearic acid 0.4%.
Embodiment 5
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 34.49%;
Ethylene-propylene rubber(EPR) 6%;
Styrene-butadiene rubber(SBR) 5%;
Calcium carbonate 40%;
P phenylenediamine type antioxidant 1%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.5%;
White carbon black 3.5%;
Adhesive RS 0.8%;
Adhesive A 0.21%;
Tenderizer 4%;
Vulcanization system 1%;
Zinc oxide 2.1%;
Stearic acid 0.4%.
Embodiment 6
All the other are identical with described embodiment 1, and above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 36%;
Ethylene-propylene rubber(EPR) 5.2%;
Styrene-butadiene rubber(SBR) 5.2%;
Calcium carbonate 37%;
P phenylenediamine type antioxidant 1.2%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.42%;
White carbon black 3.9%;
Adhesive RS 0.46%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5.8%;
Vulcanization system 1.2%;
Zinc oxide 2.02%;
Stearic acid 0.4%.
Embodiment 7
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 25.36%;
Ethylene-propylene rubber(EPR) 7.8%;
Styrene-butadiene rubber(SBR) 6.8%;
Carbon black 43%;
P phenylenediamine type antioxidant 1.2%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.58%;
White carbon black 3.8%;
Adhesive RS 0.62%;
Adhesive A 0.26%;
Naphthenic oil tenderizer 4.2%;
Vulcanization system 2.8%;
Zinc oxide 2.28%;
Stearic acid 0.3%.
Embodiment 8
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 24%;
Ethylene-propylene rubber(EPR) 7.8%;
Styrene-butadiene rubber(SBR) 6.8%;
Carbon black 41.74%;
P phenylenediamine type antioxidant 1.2%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.58%;
White carbon black 3.8%;
Adhesive RS 0.62%;
Adhesive A 0.16%;
Naphthenic oil tenderizer 4.2%;
Vulcanization system 2.8%;
Zinc oxide 2.28%;
Stearic acid 0.3%.
Embodiment 9
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 24%;
Ethylene-propylene rubber(EPR) 7.8%;
Styrene-butadiene rubber(SBR) 6.8%;
Calcium carbonate 41.58%;
P phenylenediamine type antioxidant 1.2%;
Anti-aging agent RD 0.3%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.58%;
White carbon black 3.8%;
Adhesive RS 0.68%;
Adhesive A 0.16%;
Naphthenic oil tenderizer 4.2%;
Vulcanization system 2.8%;
Zinc oxide 2.28%;
Stearic acid 0.3%.
Embodiment 10
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 28%;
Ethylene-propylene rubber(EPR) 7.5%;
Styrene-butadiene rubber(SBR) 6.5%;
Carbon black 41%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.5%;
Wax class anti-aging agent 0.45%;
Ketoamine class antioxidant BLE-W0.25%;
Cobalt salt 0.55%;
White carbon black 3.5%;
Adhesive RS 0.8%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 4.5%;
Vulcanization system 2.5%;
Zinc oxide 2.15%;
Stearic acid 0.3%.
Embodiment 11
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 32%;
Ethylene-propylene rubber(EPR) 5.5%;
Styrene-butadiene rubber(SBR) 5.5%;
Carbon black 39%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.4%;
Wax class anti-aging agent 0.7%;
Ketoamine class antioxidant BLE-W1.1%;
Cobalt salt 0.45%;
White carbon black 3.5%;
Adhesive RS 0.8%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5.5%;
Vulcanization system 1.5%;
Zinc oxide 2.05%;
Stearic acid 0.5%.
Embodiment 12
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 32%;
Ethylene-propylene rubber(EPR) 5.5%;
Styrene-butadiene rubber(SBR) 5.5%;
Carbon black 39%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.4%;
Wax class anti-aging agent 0.7%;
Ketoamine class antioxidant BLE-W1.1%;
Cobalt salt 0.4%;
White carbon black 3.55%;
Adhesive RS 0.8%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5.5%;
Vulcanization system 1.5%;
Zinc oxide 2.05%;
Stearic acid 0.5%.
Embodiment 13
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 32%;
Ethylene-propylene rubber(EPR) 5.5%;
Styrene-butadiene rubber(SBR) 5.5%;
Carbon black 39%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.4%;
Wax class anti-aging agent 0.7%;
Ketoamine class antioxidant BLE-W1.1%;
Cobalt salt 0.45%;
White carbon black 3.65%;
Adhesive RS 0.8%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5.38%;
Vulcanization system 1.5%;
Zinc oxide 2.05%;
Stearic acid 0.5%.
Embodiment 14
All the other are identical with described embodiment 1, and difference is, above-mentioned inflating valve sizing material comprises the component of following weight percent:
Natural rubber 30%;
Ethylene-propylene rubber(EPR) 6.5%;
Styrene-butadiene rubber(SBR) 6%;
Carbon black 40%;
P phenylenediamine type antioxidant 1.3%;
Anti-aging agent RD 0.5%;
Wax class anti-aging agent 0.75%;
Ketoamine class antioxidant BLE-W0.42%;
Cobalt salt 0.5%;
White carbon black 4.5%;
Adhesive RS 0.8%;
Adhesive A 0.2%;
Naphthenic oil tenderizer 5%;
Vulcanization system 2%;
Zinc oxide 2.1%;
Stearic acid 0.4%.
In order to clearer explanation technique effect of the present invention, formulate as following table 1 and table 2.Table 1 is add up the experimental data of embodiment 1-embodiment 14.
Table 2 is the test results of testing embodiment 1-embodiment 14.
As can be seen from Table 2, inflating valve sizing material disclosed by the invention considerably reduces sizing material cost relative to existing inflating valve sizing material, has better physical and mechanical properties, the resistance to ozone of sizing material and ageing-resistant performance do not decline simultaneously, and sizing material and metal-cored bond properties obtain significant raising.
The above is only the preferred embodiment of the present invention, it should be pointed out that without departing from the concept of the premise of the invention, and can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. an inflating valve sizing material, is characterized in that, comprises the component of following weight percent:
Natural rubber 20% ~ 40%, ethylene-propylene rubber(EPR) 5% ~ 8%, styrene-butadiene rubber(SBR) 5 ~ 7%, filler reinforcement system 35% ~ 45%, preventing aging system 2% ~ 4%, cobalt salt 0.4% ~ 0.6%, silica-hexa-resorcinol system 4.5% ~ 4.7%, tenderizer 4% ~ 6%, vulcanization system 1% ~ 3% and surfactant system 2.4% ~ 2.6%; Described preventing aging system comprises the component accounting for the following weight percent of described inflating valve sizing material: p phenylenediamine type antioxidant 1.0% ~ 1.3%, anti-aging agent RD 0.3% ~ 0.5%, wax class anti-aging agent 0.45% ~ 0.75% and ketoamine class antioxidant BLE-W1.0% ~ 1.3%.
2. inflating valve sizing material according to claim 1, it is characterized in that, comprise the component of following weight percent: natural rubber 24% ~ 36%, ethylene-propylene rubber(EPR) 5.2% ~ 7.8%, styrene-butadiene rubber(SBR) 5.2 ~ 6.8%, filler reinforcement system 37% ~ 43%, preventing aging system 2.2% ~ 3.8%, cobalt salt 0.42% ~ 0.58%, silica-hexa-resorcinol system 4.52% ~ 4.68%, tenderizer 4.2% ~ 5.8%, vulcanization system 1.2% ~ 2.8% and surfactant system 2.42% ~ 2.58%.
3. inflating valve sizing material according to claim 2, it is characterized in that, comprise the component of following weight percent: natural rubber 28% ~ 32%, ethylene-propylene rubber(EPR) 5.5% ~ 7.5%, styrene-butadiene rubber(SBR) 5.5 ~ 6.5%, filler reinforcement system 39% ~ 41%, preventing aging system 2.5% ~ 3.5%, cobalt salt 0.45% ~ 0.55%, silica-hexa-resorcinol system 4.55% ~ 4.65%, tenderizer 4.5% ~ 5.5%, vulcanization system 1.5% ~ 2.5% and surfactant system 2.45% ~ 2.55%.
4. according to the arbitrary described inflating valve sizing material of claim 1-3, it is characterized in that, described silica-hexa-resorcinol system comprises the component accounting for the following weight percent of described inflating valve sizing material: white carbon black 3.5% ~ 3.9%, adhesive RS 0.4% ~ 0.8% and adhesive A 0.18% ~ 0.21%.
5. inflating valve sizing material according to claim 4, is characterized in that, the preparation process of described inflating valve sizing material is as follows:
(1) get the raw materials ready, prepare described natural rubber, ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR), filler reinforcement system, preventing aging system, cobalt salt system, white carbon black, adhesive RS, adhesive A, tenderizer, vulcanization system and surfactant system respectively according to weight percent;
(2) first time banburying, first mixing by carrying out 50s in the natural gum material prepared in step (1), ethylene-propylene rubber(EPR), styrene-butadiene rubber(SBR), preventing aging system, cobalt salt system, adhesive RS and surfactant system input Banbury mixer, again filler reinforcement system and white carbon black are added described Banbury mixer and continue mixing 60s, afterwards the tenderizer prepared in step (1) is dropped into that to proceed 40s in described Banbury mixer mixing; Then mention the floating weight of described Banbury mixer and carry out cleaning action, then proceeding the mixing rear binder removal of 20s;
(3) first time opens refining, sizing material prepared by step (2) is pressed into 9mm on a mill until thick, the film that 400mm is wide;
(4) park stand-by, film prepared by step (3) is positioned over the cooling carrying out at least 12h in film cooler;
(5) second time banburying, the vulcanization system prepare step (1) and adhesive A and the obtained film of step (4) again drop into Banbury mixer and carry out the mixing of 40s, then propose hammer cleaning to described Banbury mixer, then proceed the mixing rear binder removal of 40s;
(6) second time opens refining, and sizing material discharge step (5) prepared is in mill and cool;
(7) packed for standby use, carries out packed for standby use to sizing material prepared by step (6).
6. inflating valve sizing material according to claim 5, is characterized in that, natural rubber, ethylene-propylene rubber(EPR) and styrene-butadiene rubber(SBR) in described step (1) are got the raw materials ready together, and described preventing aging system, adhesive RS, active agent are tied; Together with described adhesive A is got the raw materials ready with vulcanization system; Described infill system, white carbon black and tenderizer are equipped with respectively.
7. inflating valve sizing material according to claim 5, is characterized in that, the dump temperature in described step (2) and step (5) is 80 ± 5 DEG C.
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| CN102174970A (en) * | 2011-02-24 | 2011-09-07 | 中国海洋石油总公司 | Floating-type oil hose and method for preparing glue stock thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174970A (en) * | 2011-02-24 | 2011-09-07 | 中国海洋石油总公司 | Floating-type oil hose and method for preparing glue stock thereof |
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| CN103665449A (en) | 2014-03-26 |
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