CN117586565A - High-temperature resistant aviation tire side rubber and preparation method thereof - Google Patents
High-temperature resistant aviation tire side rubber and preparation method thereof Download PDFInfo
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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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- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
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- B60C1/0025—Compositions of the sidewalls
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
Description
技术领域Technical field
本发明涉及橡胶材料技术领域，尤其涉及一种耐高温航空轮胎胎侧胶及其制备方法。The present invention relates to the technical field of rubber materials, and in particular to a high-temperature resistant aviation tire side rubber and a preparation method thereof.
背景技术Background technique
胎侧是航空轮胎滑行、起飞、着陆过程中侧向变形最大的部位(其在轮胎中的位置如图1中5所示)，经受频繁的屈挠变形，而且在持续高温的环境中使用，直接与空气接触。胎侧胶在高温环境下会发生热空气老化，在热、氧气等作用下，橡胶大分子的化学键会因大量孤立的双键而断裂，导致活性氢游离形成烷基自由基，烷基自由基进一步与氧和橡胶大分子反应，从而进一步破坏橡胶大分子。同时，胎侧胶中的挥发分也会在高温环境下损失。这些现象会严重影响胎侧胶的力学性能，使胎侧胶变硬变脆，力学性能下降、屈挠性劣化。如何避免航空轮胎胎侧胶在高温环境下力学性能和屈挠性能下降，对于提高航空轮胎的安全性能和使用寿命具有重要意义。The sidewall is the part with the greatest lateral deformation during taxiing, takeoff, and landing of an aviation tire (its position in the tire is shown in Figure 1, 5). It is subject to frequent flexural deformation, and is used in a continuously high-temperature environment. Direct contact with air. Sidewall rubber will undergo hot air aging in high-temperature environments. Under the action of heat, oxygen, etc., the chemical bonds of rubber macromolecules will break due to a large number of isolated double bonds, resulting in the dissociation of active hydrogen to form alkyl radicals. Alkyl radicals It further reacts with oxygen and rubber macromolecules, thereby further destroying the rubber macromolecules. At the same time, the volatile components in the sidewall rubber will also be lost in high temperature environments. These phenomena will seriously affect the mechanical properties of the sidewall rubber, making the sidewall rubber hard and brittle, causing the mechanical properties to decrease and the flexibility to deteriorate. How to prevent the mechanical properties and flexural properties of aviation tire sidewall rubber from declining in high temperature environments is of great significance to improving the safety performance and service life of aviation tires.
发明内容Contents of the invention
本发明的目的在于提供一种耐高温航空轮胎胎侧胶及其制备方法，本发明提供的航空轮胎胎侧胶具有优异的耐屈挠龟裂性能和力学性能、耐老化性能，能够提高航空轮胎的安全性能和使用寿命。The object of the present invention is to provide a high-temperature resistant aviation tire side rubber and a preparation method thereof. The aviation tire side rubber provided by the invention has excellent flex crack resistance, mechanical properties, and aging resistance, and can improve the aviation tire safety performance and service life.
为了实现上述发明目的，本发明提供以下技术方案：In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
本发明提供了一种耐高温航空轮胎胎侧胶，以重量份数计，包括以下制备原料：The invention provides a high-temperature resistant aviation tire side rubber, which includes the following preparation raw materials in parts by weight:
1#烟片胶80～90份、顺丁橡胶5～10份、白炭黑湿法胶10～20份、N330炭黑40～45份、芳烃油4～6份、硅烷偶联剂1.5～2份、氧化锌3～5份、硬脂酸1～3份、防护蜡RP-31～1.5份；防老剂IPPD或防老剂40201～1.5份、防老剂S-RD 2～2.5份、不溶性硫磺0.3～0.5份、N,N-间甲撑双马来酰亚胺0.5～1份、硫化剂VA-72～3份、促进剂2～3份和抗硫化返原剂WK-9010.5～1份。1# smoke sheet glue 80-90 parts, butadiene rubber 5-10 parts, silica wet glue 10-20 parts, N330 carbon black 40-45 parts, aromatic oil 4-6 parts, silane coupling agent 1.5- 2 parts, zinc oxide 3 to 5 parts, stearic acid 1 to 3 parts, protective wax RP-31 to 1.5 parts; antioxidant IPPD or antioxidant 40201 to 1.5 parts, antioxidant S-RD 2 to 2.5 parts, insoluble sulfur 0.3～0.5 parts, N,N-methylene bismaleimide 0.5～1 part, vulcanizing agent VA-72～3 parts, accelerator 2～3 parts and anti-vulcanization reversion agent WK-9010.5～1 part .
优选的，所述不溶性硫磺包括不溶性硫磺IS-60。Preferably, the insoluble sulfur includes insoluble sulfur IS-60.
优选的，所述硅烷偶联剂包括硅烷偶联剂Si69。Preferably, the silane coupling agent includes silane coupling agent Si69.
优选的，所述促进剂包括促进剂MBS。Preferably, the accelerator includes accelerator MBS.
优选的，所述制备原料包括：1#烟片胶80份、顺丁橡胶10份、白炭黑湿法胶20份、N330炭黑40份、芳烃油4份、硅烷偶联剂2份、氧化锌5份、硬脂酸2份、防护蜡RP-31份；防老剂IPPD 1份、防老剂S-RD 2份、不溶性硫磺0.3份、N,N-间甲撑双马来酰亚胺0.5份、硫化剂VA-73份、促进剂2份和抗硫化返原剂WK-9010.5份。Preferably, the preparation raw materials include: 80 parts of 1# tobacco sheet rubber, 10 parts of butadiene rubber, 20 parts of silica wet glue, 40 parts of N330 carbon black, 4 parts of aromatic oil, 2 parts of silane coupling agent, 5 parts of zinc oxide, 2 parts of stearic acid, RP-31 protective wax; 1 part of antioxidant IPPD, 2 parts of antioxidant S-RD, 0.3 parts of insoluble sulfur, N,N-methylene bismaleimide 0.5 parts, vulcanizing agent VA-73 parts, accelerator 2 parts and anti-vulcanization reversion agent WK-9010.5 parts.
优选的，所述制备原料包括：1#烟片胶85份、顺丁橡胶5份、白炭黑湿法胶20份、N330炭黑40份、芳烃油5份、硅烷偶联剂2份、氧化锌5份、硬脂酸2份、防护蜡RP-31份；防老剂IPPD 1份、防老剂S-RD 2.5份、不溶性硫磺0.5份、N,N-间甲撑双马来酰亚胺0.5份、硫化剂VA-72份、促进剂2份和抗硫化返原剂WK-9010.5份。Preferably, the preparation raw materials include: 85 parts of 1# tobacco sheet rubber, 5 parts of butadiene rubber, 20 parts of silica wet glue, 40 parts of N330 carbon black, 5 parts of aromatic oil, 2 parts of silane coupling agent, 5 parts of zinc oxide, 2 parts of stearic acid, RP-31 protective wax; 1 part of antioxidant IPPD, 2.5 parts of antioxidant S-RD, 0.5 parts of insoluble sulfur, N,N-methylene bismaleimide 0.5 parts, vulcanizing agent VA-72 parts, accelerator 2 parts and anti-vulcanization reversion agent WK-9010.5 parts.
优选的，所述制备原料包括：1#烟片胶90份、顺丁橡胶5份、白炭黑湿法胶10份、N330炭黑45份、芳烃油6份、硅烷偶联剂1.5份、氧化锌5份、硬脂酸3份、防护蜡RP-31.5份；防老剂IPPD 1份、防老剂S-RD 2份、不溶性硫磺0.5份、N,N-间甲撑双马来酰亚胺0.5份、硫化剂VA-72份、促进剂2份和抗硫化返原剂WK-9010.5份。Preferably, the preparation raw materials include: 90 parts of 1# tobacco sheet rubber, 5 parts of butadiene rubber, 10 parts of silica wet glue, 45 parts of N330 carbon black, 6 parts of aromatic oil, 1.5 parts of silane coupling agent, 5 parts of zinc oxide, 3 parts of stearic acid, RP-31.5 parts of protective wax; 1 part of antioxidant IPPD, 2 parts of antioxidant S-RD, 0.5 parts of insoluble sulfur, N,N-methylene bismaleimide 0.5 parts, vulcanizing agent VA-72 parts, accelerator 2 parts and anti-vulcanization reversion agent WK-9010.5 parts.
优选的，所述耐高温航空轮胎胎侧胶的性能如表1所示：Preferably, the performance of the high-temperature resistant aviation tire side rubber is as shown in Table 1:
表1所述耐高温航空轮胎胎侧胶的性能Performance of high-temperature resistant aviation tire side rubber as shown in Table 1
本发明提供了上述方案所述耐高温航空轮胎胎侧胶的制备方法，包括以下步骤：将各制备原料进行混炼，得到混炼胶；将所述混炼胶进行挤出，得到胎侧半成品；将所述胎侧半成品贴于胎体侧部，制成轮胎胎坯；将所述轮胎胎坯硫化，形成含有胎侧胶的轮胎成品。The present invention provides a method for preparing high-temperature resistant aviation tire side rubber according to the above solution, which includes the following steps: mixing each preparation raw material to obtain a mixed rubber; extruding the mixed rubber to obtain a side semi-finished product ; Attach the sidewall semi-finished product to the side of the carcass to make a tire green; vulcanize the tire green to form a finished tire containing sidewall rubber.
优选的，所述硫化的温度为140±3℃，时间为40±5min。Preferably, the vulcanization temperature is 140±3°C and the time is 40±5 minutes.
本发明提供了一种耐高温航空轮胎胎侧胶，以重量份数计，包括以下制备原料：1#烟片胶80～90份、顺丁橡胶5～10份、白炭黑湿法胶10～20份、N330炭黑40～45份、芳烃油4～6份、硅烷偶联剂1.5～2份、氧化锌3～5份、硬脂酸1～3份、防护蜡RP-31～1.5份；防老剂IPPD或防老剂40201～1.5份、防老剂S-RD 2～2.5份、不溶性硫磺0.3～0.5份、N,N-间甲撑双马来酰亚胺0.5～1份、硫化剂VA-72～3份、促进剂2～3份和抗硫化返原剂WK-9010.5～1份。The invention provides a high-temperature resistant aviation tire side rubber, which includes the following preparation raw materials in parts by weight: 80 to 90 parts of 1# smoke sheet rubber, 5 to 10 parts of butadiene rubber, and 10 parts of silica wet glue ~20 parts, N330 carbon black 40~45 parts, aromatic oil 4~6 parts, silane coupling agent 1.5~2 parts, zinc oxide 3~5 parts, stearic acid 1~3 parts, protective wax RP-31~1.5 parts; antioxidant IPPD or antioxidant 40201 to 1.5 parts, antioxidant S-RD 2 to 2.5 parts, insoluble sulfur 0.3 to 0.5 parts, N,N-methylene bismaleimide 0.5 to 1 part, vulcanizing agent VA-72~3 parts, accelerator 2~3 parts and anti-reversion agent WK-9010.5~1 part.
1#烟片胶具有抗撕性能高、综合性能好的特点；顺丁橡胶具有耐屈挠性能优异、生热低、弹性高、低温性能好的优点；白炭黑湿法胶具有生热低、机械性能优异并能改善混炼胶粘和等特点；通过采用1#烟片胶、顺丁橡胶和白炭黑湿法胶并用，使胎侧胶具有较高的拉伸强度和撕裂强度，优异的耐屈挠龟裂性能；N330炭黑具有很好的导电性、导热性，在高温下能够有效抵抗氧化反应，防止橡胶氧化脆化；防护蜡、防老剂IPPD(或防老剂4020)和防老剂S-RD能有效防止橡胶老化，防护蜡会在硫化胶表面形成一层物理保护层，有效防止橡胶老化龟裂；防老剂IPPD(或防老剂4020)和防老剂S-RD协同作用能很好的提高硫化胶抗热氧老化和耐屈挠性能；硫化体系采用耐高温性能优异的N,N-间甲撑双马来酰亚胺(PDM)、硫化剂VA-7和抗硫化返原剂WK-901，N,N-间甲撑双马来酰亚胺和抗硫化返原剂能有效防止橡胶硫化返原，改善耐热性，降低生热；硫化剂VA-7是特殊的硫给予体，能使线型的橡胶分子链交联，形成立体网状结构，大大提高硫化胶的力学性能，并且对返原的硫化胶具有很好的重排再交联效果，有效提高硫化胶的耐热性能。本发明通过合理比例配置配方成分，使胎侧胶具有优异的力学性能、耐屈挠龟裂性能和耐热空气老化性能，提高了航空轮胎的安全性和寿命(性能数据见表1)。1# smoke sheet rubber has the characteristics of high tear resistance and good comprehensive performance; butadiene rubber has the advantages of excellent flex resistance, low heat generation, high elasticity and good low temperature performance; silica wet method rubber has the characteristics of low heat generation , excellent mechanical properties and can improve the adhesion and adhesion of the mixed rubber; by using 1# smoke sheet rubber, butadiene rubber and silica wet rubber together, the sidewall rubber has high tensile strength and tear strength , excellent resistance to flex cracking; N330 carbon black has good electrical conductivity and thermal conductivity, and can effectively resist oxidation reactions at high temperatures to prevent oxidative embrittlement of rubber; protective wax, antioxidant IPPD (or antioxidant 4020) and antioxidant S-RD can effectively prevent rubber aging. The protective wax will form a physical protective layer on the surface of the vulcanized rubber to effectively prevent rubber from aging and cracking; the antioxidant IPPD (or antioxidant 4020) and the antioxidant S-RD work synergistically. It can well improve the thermal and oxidative aging resistance and flexural resistance of vulcanized rubber; the vulcanization system uses N,N-methylene bismaleimide (PDM) with excellent high temperature resistance, vulcanizing agent VA-7 and anti-vulcanization Reversion agent WK-901, N,N-methylene bismaleimide and anti-vulcanization reversion agent can effectively prevent rubber vulcanization from returning to its original state, improve heat resistance and reduce heat generation; vulcanizing agent VA-7 is a special The sulfur donor can cross-link the linear rubber molecular chains to form a three-dimensional network structure, greatly improving the mechanical properties of the vulcanized rubber, and has a good rearrangement and re-crosslinking effect on the returned vulcanized rubber, effectively improving the Heat resistance of vulcanized rubber. By configuring the formula ingredients in a reasonable proportion, the present invention enables the sidewall rubber to have excellent mechanical properties, flex crack resistance and hot air aging resistance, thereby improving the safety and life of the aviation tire (see Table 1 for performance data).
表1所述耐高温航空轮胎胎侧胶的性能Performance of high-temperature resistant aviation tire side rubber as shown in Table 1
附图说明Description of drawings
图1为航空轮胎的纵切结构示意图，其中，1-胎面胶、2-补强层、3-胎体帘布层、4-气密层、5-胎侧胶、6-轮辋。Figure 1 is a schematic diagram of the longitudinal structure of an aviation tire, where 1-tread rubber, 2-reinforcement layer, 3-carcass ply, 4-inner tight layer, 5-sidewall rubber, 6-rim.
具体实施方式Detailed ways
本发明提供了一种耐高温航空轮胎胎侧胶，以重量份数计，包括以下制备原料：The invention provides a high-temperature resistant aviation tire side rubber, which includes the following preparation raw materials in parts by weight:
1#烟片胶80～90份、顺丁橡胶5～10份、白炭黑湿法胶10～20份、N330炭黑40～45份、芳烃油4～6份、硅烷偶联剂1.5～2份、氧化锌3～5份、硬脂酸1～3份、防护蜡RP-31～1.5份；防老剂IPPD或防老剂40201～1.5份、防老剂S-RD 2～2.5份、不溶性硫磺0.3～0.5份、N,N-间甲撑双马来酰亚胺0.5～1份、硫化剂VA-72～3份、促进剂2～3份和抗硫化返原剂WK-9010.5～1份。1# smoke sheet glue 80-90 parts, butadiene rubber 5-10 parts, silica wet glue 10-20 parts, N330 carbon black 40-45 parts, aromatic oil 4-6 parts, silane coupling agent 1.5- 2 parts, zinc oxide 3 to 5 parts, stearic acid 1 to 3 parts, protective wax RP-31 to 1.5 parts; antioxidant IPPD or antioxidant 40201 to 1.5 parts, antioxidant S-RD 2 to 2.5 parts, insoluble sulfur 0.3～0.5 parts, N,N-methylene bismaleimide 0.5～1 part, vulcanizing agent VA-72～3 parts, accelerator 2～3 parts and anti-vulcanization reversion agent WK-9010.5～1 part .
在本发明中，未经特殊说明，所用原料均为本领域熟知的市售商品。In the present invention, unless otherwise specified, all raw materials used are commercially available products well known in the art.
以重量份数计，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括1#烟片胶80～90份，优选为82～88份，更优选为84～86份。在本发明的实施例中，具体为80份、85份或90份。在本发明中，所述1#烟片胶具有抗撕性能高、综合性能好的特点。In parts by weight, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 80 to 90 parts of No. 1 smoke sheet rubber, preferably 82 to 88 parts, and more preferably 84 to 86 parts. In the embodiment of the present invention, it is specifically 80 parts, 85 parts or 90 parts. In the present invention, the 1# tobacco sheet glue has the characteristics of high tear resistance and good comprehensive performance.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括顺丁橡胶5～10份，优选为6～9份，更优选为7～8份。在本发明的实施例中，具体为5份或10份。在本发明中，所述顺丁橡胶具有耐屈挠性能优异、生热低、弹性高、低温性能好的优点。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high temperature resistant aviation tire side rubber provided by the present invention include 5 to 10 parts of butadiene rubber, preferably 6 to 9 parts, and more preferably 7 to 9 parts. Serves 8. In the embodiment of the present invention, it is specifically 5 parts or 10 parts. In the present invention, the butadiene rubber has the advantages of excellent flex resistance, low heat generation, high elasticity, and good low-temperature performance.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括白炭黑湿法胶10～20份，优选为12～18份，更优选为14～16份。在本发明的实施例中，具体为10份或20份。在本发明中，所述白炭黑湿法胶具有生热低、机械性能优异并能改善混炼胶粘和等特点。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high temperature resistant aviation tire side rubber provided by the present invention include 10 to 20 parts of silica wet glue, preferably 12 to 18 parts, more preferably 14 to 16 servings. In the embodiment of the present invention, it is specifically 10 parts or 20 parts. In the present invention, the silica wet glue has the characteristics of low heat generation, excellent mechanical properties, and can improve the adhesion of the mixing glue.
本发明通过采用1#烟片胶、顺丁橡胶和白炭黑湿法胶并用，使胎侧胶具有较高的拉伸强度和撕裂强度，优异的耐屈挠龟裂性能。By using 1# smoke sheet rubber, butadiene rubber and silica wet rubber together, the sidewall rubber has high tensile strength and tear strength and excellent flex crack resistance.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括N330炭黑40～45份，优选为41～44份，更优选为42～43份。在本发明的实施例中，具体为40份或45份。在本发明中，所述N330炭黑具有很好的导电性、导热性，在高温下能够有效抵抗氧化反应，防止橡胶氧化脆化。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 40 to 45 parts of N330 carbon black, preferably 41 to 44 parts, and more preferably 42 to 42 parts. 43 servings. In the embodiment of the present invention, it is specifically 40 parts or 45 parts. In the present invention, the N330 carbon black has good electrical conductivity and thermal conductivity, and can effectively resist oxidation reactions at high temperatures and prevent oxidative embrittlement of rubber.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括芳烃油4～6份，优选为4.5～5.5份，更优选为5份。在本发明的实施例中，具体为4份、5份或6份。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 4 to 6 parts of aromatic oil, preferably 4.5 to 5.5 parts, and more preferably 5 parts. In the embodiment of the present invention, it is specifically 4 parts, 5 parts or 6 parts.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括硅烷偶联剂1.5～2份，优选为1.6～1.9份，更优选为1.7～1.8份。在本发明的实施例中，具体为1.5份或2份。在本发明中，所述硅烷偶联剂优选包括硅烷偶联剂Si69。在本发明中，所述硅烷偶联剂的作用是改善橡胶交联稳定性，保持硫化平衡以增加抗硫化返原性，提高橡胶耐热性能。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high temperature resistant aviation tire side rubber provided by the present invention include 1.5 to 2 parts of silane coupling agent, preferably 1.6 to 1.9 parts, and more preferably 1.7 parts ~1.8 servings. In the embodiment of the present invention, it is specifically 1.5 parts or 2 parts. In the present invention, the silane coupling agent preferably includes silane coupling agent Si69. In the present invention, the function of the silane coupling agent is to improve the cross-linking stability of the rubber, maintain the vulcanization balance to increase the resistance to vulcanization reversion, and improve the heat resistance of the rubber.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括氧化锌3～5份，优选为3.5～4.5份，更优选为4份。在本发明的实施例中，具体为5份。Based on the parts by weight of the #1 smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 3 to 5 parts of zinc oxide, preferably 3.5 to 4.5 parts, and more preferably 4 parts. In the embodiment of the present invention, it is specifically 5 parts.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括硬脂酸1～3份，优选为1.5～2.5份，更优选为2份。在本发明的实施例中，具体为2份或3份。Based on the weight parts of the 1# tobacco sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 1 to 3 parts of stearic acid, preferably 1.5 to 2.5 parts, and more preferably 2 parts . In the embodiment of the present invention, it is specifically 2 parts or 3 parts.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括防护蜡RP-31～1.5份，优选为1.1～1.4份，更优选为1.2～1.3份。在本发明的实施例中，具体为1份或1.5份。在本发明中，所述防护蜡RP-3会在硫化胶表面形成一层物理保护层，有效防止橡胶老化龟裂。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include protective wax RP-31 to 1.5 parts, preferably 1.1 to 1.4 parts, and more preferably 1.2 parts. ~1.3 servings. In the embodiment of the present invention, it is specifically 1 part or 1.5 parts. In the present invention, the protective wax RP-3 will form a physical protective layer on the surface of vulcanized rubber to effectively prevent rubber from aging and cracking.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括防老剂IPPD或防老剂40201～1.5份，优选为1.1～1.4份，更优选为1.2～1.3份。在本发明的实施例中，具体为防老剂IPPD，重量份数为1份。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high temperature resistant aviation tire side rubber provided by the present invention include antioxidant IPPD or antioxidant 40201-1.5 parts, preferably 1.1-1.4 parts, more preferably It is 1.2~1.3 parts. In the embodiment of the present invention, it is specifically the anti-aging agent IPPD, and the part by weight is 1 part.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括防老剂S-RD 2～2.5份，优选为2.1～2.4份，更优选为2.2～2.3份。在本发明的实施例中，具体为2份或2.5份。在本发明中，所述防老剂IPPD(或防老剂4020)和防老剂S-RD协同作用能很好的提高硫化胶抗热氧老化和耐屈挠性能。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 2 to 2.5 parts of the antioxidant S-RD, preferably 2.1 to 2.4 parts, and more preferably 2.2 to 2.3 servings. In the embodiment of the present invention, it is specifically 2 parts or 2.5 parts. In the present invention, the synergistic effect of the antioxidant IPPD (or antioxidant 4020) and the antioxidant S-RD can well improve the thermal and oxidative aging resistance and flexural resistance of the vulcanized rubber.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括不溶性硫磺0.3～0.5份，优选为0.35～0.45份，更优选为0.4份。在本发明的实施例中，具体为0.3份或0.5份。在本发明中，所述不溶性硫磺优选包括不溶性硫磺IS-60。Based on the weight parts of the #1 smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 0.3 to 0.5 parts of insoluble sulfur, preferably 0.35 to 0.45 parts, and more preferably 0.4 parts. In the embodiment of the present invention, it is specifically 0.3 parts or 0.5 parts. In the present invention, the insoluble sulfur preferably includes insoluble sulfur IS-60.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括N,N-间甲撑双马来酰亚胺0.5～1份，优选为0.6～0.9份，更优选为0.7～0.8份。在本发明的实施例中，具体为0.5份。Based on the weight parts of the 1# tobacco sheet rubber, the raw materials for preparing the high temperature resistant aviation tire side rubber provided by the present invention include 0.5 to 1 part of N,N-methylene bismaleimide, preferably 0.6 to 0.9 parts, more preferably 0.7 to 0.8 parts. In the embodiment of the present invention, it is specifically 0.5 parts.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括硫化剂VA-72～3份，优选为2.2～2.8份，更优选为2.4～2.6份。在本发明的实施例中，具体为2份或3份。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include vulcanizing agent VA-72 to 3 parts, preferably 2.2 to 2.8 parts, and more preferably 2.4 parts. ~2.6 servings. In the embodiment of the present invention, it is specifically 2 parts or 3 parts.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括抗硫化返原剂WK-9010.5～1份，优选为0.6～0.9份，更优选为0.7～0.8份。在本发明的实施例中，具体为0.5份。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 0.5 to 1 part of the anti-vulcanization reversion agent WK-90, preferably 0.6 to 0.9 parts, and more Preferably it is 0.7-0.8 parts. In the embodiment of the present invention, it is specifically 0.5 parts.
在本发明中，硫化体系采用耐高温性能优异的N,N-间甲撑双马来酰亚胺(PDM)、硫化剂VA-7和抗硫化返原剂WK-901，N,N-间甲撑双马来酰亚胺和抗硫化返原剂能有效防止橡胶硫化返原，改善耐热性，降低生热；硫化剂VA-7是特殊的硫给予体，能使线型的橡胶分子链交联，形成立体网状结构，大大提高硫化胶的力学性能，并且对返原的硫化胶具有很好的重排再交联效果，有效提高硫化胶的耐热性能。In the present invention, the vulcanization system adopts N,N-methylene bismaleimide (PDM) with excellent high temperature resistance, vulcanizing agent VA-7 and anti-vulcanization reversion agent WK-901, N,N-methylene Methylene bismaleimide and anti-vulcanization reversion agent can effectively prevent rubber vulcanization from reverting, improve heat resistance, and reduce heat generation; vulcanizing agent VA-7 is a special sulfur donor that can make linear rubber molecules The chains are cross-linked to form a three-dimensional network structure, which greatly improves the mechanical properties of the vulcanized rubber. It also has a good rearrangement and re-cross-linking effect on the returned vulcanized rubber, effectively improving the heat resistance of the vulcanized rubber.
以所述1#烟片胶的重量份数为基准，本发明提供的耐高温航空轮胎胎侧胶的制备原料包括促进剂2～3份，优选为2.2～2.8份，更优选为2.4～2.6份。在本发明的实施例中，具体为2份。在本发明中，所述促进剂优选包括促进剂MBS。Based on the weight parts of the 1# smoke sheet rubber, the raw materials for preparing the high-temperature resistant aviation tire side rubber provided by the present invention include 2 to 3 parts of accelerator, preferably 2.2 to 2.8 parts, and more preferably 2.4 to 2.6 parts. share. In the embodiment of the present invention, it is specifically 2 parts. In the present invention, the accelerator preferably includes the accelerator MBS.
本发明通过合理比例配置配方成分，使胎侧胶具有优异的力学性能、耐屈挠龟裂性能和耐热空气老化性能，提高了航空轮胎的安全性和寿命(性能数据见表1)。By configuring the formula ingredients in a reasonable proportion, the present invention enables the sidewall rubber to have excellent mechanical properties, flex crack resistance and hot air aging resistance, thereby improving the safety and life of the aviation tire (see Table 1 for performance data).
本发明提供了上述方案所述耐高温航空轮胎胎侧胶的制备方法，包括以下步骤：将各制备原料进行混炼，得到混炼胶；将所述混炼胶进行挤出，得到胎侧半成品；将所述胎侧半成品贴于胎体侧部，制成轮胎胎坯；将所述轮胎胎坯硫化，形成含有胎侧胶的轮胎成品。The present invention provides a method for preparing high-temperature resistant aviation tire side rubber according to the above solution, which includes the following steps: mixing each preparation raw material to obtain a mixed rubber; extruding the mixed rubber to obtain a side semi-finished product ; Attach the sidewall semi-finished product to the side of the carcass to make a tire green; vulcanize the tire green to form a finished tire containing sidewall rubber.
本发明对所述混炼的过程没有特殊要求，采用本领域熟知的混炼过程即可。在本发明中，所述挤出优选采用挤出机进行。在本发明中，所述硫化的温度优选为140±3℃，更优选为140℃；所述硫化的时间优选为40±5min，更优选为40min。The present invention has no special requirements for the mixing process, and the mixing process well known in the art can be used. In the present invention, the extrusion is preferably performed using an extruder. In the present invention, the vulcanization temperature is preferably 140±3°C, more preferably 140°C; the vulcanization time is preferably 40±5min, more preferably 40min.
下面结合实施例对本发明提供的耐高温航空轮胎胎侧胶及其制备方法进行详细的说明，但是不能把它们理解为对本发明保护范围的限定。The high-temperature resistant aviation tire side rubber and its preparation method provided by the present invention will be described in detail below with reference to the examples, but they should not be understood as limiting the scope of the present invention.
实施例1～3和对比例1Examples 1 to 3 and Comparative Example 1
按表2配方，将各制备原料通过密炼机混炼，制造出混炼胶，用挤出机挤出的方式将混炼胶制成胎侧半成品，在成型机上将胎侧半成品贴于胎体侧部，制成轮胎胎坯，并通过硫化机将胎坯硫化而成为轮胎成品，硫化温度为140℃，时间为40min。实施例1～3和对比例1制备的硫化胶的性能见表3～6。According to the formula in Table 2, mix each preparation raw material through an internal mixer to produce a mixed rubber. Use an extruder to extrude the mixed rubber into a sidewall semi-finished product, and attach the sidewall semi-finished product to the tire on the molding machine. The body side part is made into a tire blank, and the tire blank is vulcanized through a vulcanizing machine to become a finished tire. The vulcanization temperature is 140°C and the time is 40 minutes. The properties of the vulcanized rubber prepared in Examples 1 to 3 and Comparative Example 1 are shown in Tables 3 to 6.
表2实施例1～3和对比例1胶料配方(重量份数)Table 2 Examples 1 to 3 and Comparative Example 1 Rubber formulations (parts by weight)
表3实施例1胶料性能Table 3 Example 1 rubber compound properties
表4实施例2胶料性能Table 4 Example 2 rubber compound properties
表5实施例3胶料性能Table 5 Example 3 Rubber Properties
表6对比例1胶料性能Table 6 Comparative Example 1 Rubber Performance
由以上实施例和对比例可知，本发明提供了一种耐高温航空轮胎胎侧胶，本发明通过合理的配方，使胎侧胶具有优异的力学性能、耐屈挠龟裂性能和耐热空气老化性能，提高了航空轮胎的安全性和寿命。As can be seen from the above examples and comparative examples, the present invention provides a high-temperature resistant aviation tire sidewall rubber. Through a reasonable formula, the present invention enables the sidewall rubber to have excellent mechanical properties, flex crack resistance and hot air resistance. Aging performance improves the safety and life of aviation tires.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.
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