CN105602638A - 一种甲醇汽油橡胶防溶胀剂 - Google Patents

一种甲醇汽油橡胶防溶胀剂 Download PDF

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CN105602638A
CN105602638A CN201610027164.2A CN201610027164A CN105602638A CN 105602638 A CN105602638 A CN 105602638A CN 201610027164 A CN201610027164 A CN 201610027164A CN 105602638 A CN105602638 A CN 105602638A
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俞权锋
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Abstract

本发明提供的甲醇汽油橡胶防溶胀剂,是由以下重量份数的组分制成：石油醚6～8份、异丙醇4～6份、丙二醇甲醚3～4份、三乙二醇单丁醚2.5～3份、烷基酚聚氧乙烯醚2～2.3份、异构醇聚氧乙烯醚1.8～2份、全氟辛基乙烯2.5～3份、甲基苯并三氮唑3.5～4份、二乙二醇醚6～8份。本甲醇汽油橡胶防溶胀剂具有优良的抗溶胀和抗腐蚀性能。可以防止车辆供油系统密封部件的磨损和被腐蚀，保持橡胶件的弹性而不使橡胶老化。本发明的甲醇汽油橡胶防溶胀剂，可以有效抑制高、低比例甲醇汽油对汽车供油系统的橡胶、塑料材料的溶胀问题，同时具有良好的防锈效果。

Description

一种甲醇汽油橡胶防溶胀剂
技术领域
本发明涉及一种车用燃料油添加剂，特别是涉及一种甲醇汽油橡胶防溶胀剂。
背景技术
甲醇是由煤、焦、天然气、轻油、重油等为原料合成生产的工业甲醇，甲醇的性质：工业甲醇有毒、易燃、易爆。在常温常压下，甲醇为无色、透明、易流动、易挥发的液体，具有与乙醇相似的气味。甲醇汽油在动力性能上是否可以替代汽、柴油。甲醇汽油需要由甲醇、汽油和核心添加剂配置而成，甲醇汽油技术已成熟。
甲醇掺入量一般为5％～30％。以掺入15％者为最多，称M15甲醇汽油。抗爆性能好，研究法辛烷值(RON)随甲醇掺入量的增加而增高，马达法辛烷值(MON)则不受影响。燃烧排出物的毒性比普通含铅汽油小，排气中一氧化碳含量也较少。燃烧清洁性能良好。但一般的甲醇汽油对汽油发动机的腐蚀性和对橡胶材料的溶胀率都较大，且易于分层，低温运转性能和冷起动性能不及纯汽油，可用作车用汽油代用品。许多国家作了大量使用试验，有的也在产业化使用。
我国甲醇汽油特别是低比例甲醇汽油的推广和示范已经取得了很大的成就，然而在实际应用和推广中，生产出的甲醇汽油存在腐蚀、磨碎金属件，橡胶件溶胀等问题，阻碍着甲醇汽油的大范围推广。我国甲醇汽油特别是低比例甲醇汽油的推广和示范已经取得了很大的成就，然而在实际应用和推广中，生产出的甲醇汽油存在腐蚀、磨碎金属件，橡胶件溶胀等问题，阻碍着甲醇汽油的大范围推广。
发明内容
本发明的目的是克服已有技术的不足，提供一种性能良好的的甲醇汽油橡胶防溶胀剂，以解决甲醇汽油对汽车橡胶部件的溶胀问题，并防止甲醇汽油在使用过程中对汽车金属的腐蚀。
本发明提供的甲醇汽油橡胶防溶胀剂,是由以下重量份数的组分制成：石油醚6～8份、异丙醇4～6份、丙二醇甲醚3～4份、三乙二醇单丁醚2.5～3份、烷基酚聚氧乙烯醚2～2.3份、异构醇聚氧乙烯醚1.8～2份、全氟辛基乙烯2.5～3份、甲基苯并三氮唑3.5～4份、二乙二醇醚6～8份。
作为优化，该甲醇汽油橡胶防溶胀剂，是由以下重量份数的组分制成：石油醚7份、异丙醇5份、丙二醇甲醚3.5份、三乙二醇单丁醚2.8份、烷基酚聚氧乙烯醚2.1份、异构醇聚氧乙烯醚1.9份、全氟辛基乙烯2.7份、甲基苯并三氮唑3.8份、二乙二醇醚7份。
制备本发明甲醇汽油橡胶防溶胀剂的方法，包括以下步骤
(1)将所述重量份数的石油醚、异丙醇、三乙二醇单丁醚、烷基酚聚氧乙烯醚混合，然后用超声波分散仪，于48～50℃条件下，超声分散30～35分钟，得到A液；
(2)将所述重量份数的异构醇聚氧乙烯醚、全氟辛基乙烯、甲基苯并三氮唑、二乙二醇醚混合，然后用超声波分散仪，于42～46℃条件下，超声分散20～25分钟，得到B液；
(2)将A液、B液连同所述重量份数的丙二醇甲醚，混合到一起，于55～60℃条件下，用磁力搅拌机搅拌25～30分钟，即得。
甲醇汽油橡胶防溶胀剂，由助溶剂、分散剂、金属防锈剂、橡胶溶胀抑制剂组成；本甲醇汽油橡胶防溶胀剂具有优良的抗溶胀和抗腐蚀性能。可以防止车辆供油系统密封部件的磨损和被腐蚀，保持橡胶件的弹性而不使橡胶老化。本发明的甲醇汽油橡胶防溶胀剂，可以有效抑制高、低比例甲醇汽油对汽车供油系统的橡胶、塑料材料的溶胀问题同时具有良好的防锈效果。
具体实施方式
下面给出的实施例拟对本发明作进一步说明，但不能理解为是对本发明保护范围的限制，本领域技术人员根据本发明内容对本发明的一些非本质的改进和调整，仍属于本发明的保护范围。
实施例1：
(1)将石油醚7千克、异丙醇5千克、三乙二醇单丁醚2.8千克、烷基酚聚氧乙烯醚(OP-10)2.1千克混合，然后用超声波分散仪，于48～50℃条件下，超声分散30～35分钟，得到A液；
(2)将异构醇聚氧乙烯醚(PE6100)1.9千克、全氟辛基乙烯2.7千克、甲基苯并三氮唑3.8千克、二乙二醇醚7千克混合，然后用超声波分散仪，于42～46℃条件下，超声分散20～25分钟，得到B液；
(3)将A液、B液连同丙二醇甲醚3.5千克，混合到一起，于55～60℃条件下，用磁力搅拌机搅拌25～30分钟，即得。将其直接加入到M15-M30甲醇汽油中，加入量为甲醇汽油重量的0.4％-0.5％，混合均匀即可使用。
实施例2:
(1)将石油醚6千克、异丙醇4千克、三乙二醇单丁醚2.5千克、烷基酚聚氧乙烯醚(OP-10)2千克混合，然后用超声波分散仪，于48～50℃条件下，超声分散30～35分钟，得到A液；
(2)将异构醇聚氧乙烯醚(PE6100)1.8千克、全氟辛基乙烯2.5千克、甲基苯并三氮唑3.5千克、二乙二醇醚6千克混合，然后用超声波分散仪，于42～46℃条件下，超声分散20～25分钟，得到B液；
(3)将A液、B液连同丙二醇甲醚3千克，混合到一起，于55～60℃条件下，用磁力搅拌机搅拌25～30分钟，即得。将其直接加入到M15-M30甲醇汽油中，加入量为甲醇汽油重量的0.4％-0.5％，混合均匀即可使用。
实施例3:
(1)将石油醚8千克、异丙醇6千克、三乙二醇单丁醚3千克、烷基酚聚氧乙烯醚(OP-10)2.3千克混合，然后用超声波分散仪，于48～50℃条件下，超声分散30～35分钟，得到A液；
(2)将异构醇聚氧乙烯醚(PE6100)2千克、全氟辛基乙烯3千克、甲基苯并三氮唑4千克、二乙二醇醚8千克混合，然后用超声波分散仪，于42～46℃条件下，超声分散20～25分钟，得到B液；
(3)将A液、B液连同丙二醇甲醚4千克，混合到一起，于55～60℃条件下，用磁力搅拌机搅拌25～30分钟，即得。将其直接加入到M15-M75甲醇汽油中，加入量为甲醇汽油重量的0.4％-0.5％，混合均匀即可使用。
相关实验：橡胶溶胀实验将油浮子及管路等橡胶材料分别浸泡在，M30甲醇汽油、含有实施例1、2、3的M30甲醇汽油，试验温度控制为(25±1)℃，时间为600h。观察浸泡于含本发明甲醇汽油橡胶防溶胀剂的甲醇汽油中的油浮子及管路等橡胶材料，未出现橡胶发硬、发白，浸泡液没有明显浑浊，油浮子及管路等材料均可以正常使用。实验结果见表1。
表1橡胶溶胀浸泡实验结果
金属腐蚀实验参照ASTMG31—72“金属实验室沉浸腐蚀试验的推荐规范”和国家标准GB378—64《发动机燃料铜片腐蚀试验法》。试验温度控制为(25±1)℃，时间为168h。实验结果见表2。
表2金属腐蚀浸泡实验结果

Claims (3)

1.一种甲醇汽油橡胶防溶胀剂,其特征在于，是由以下重量份数的组分制成：石油醚6～8份、异丙醇4～6份、丙二醇甲醚3～4份、三乙二醇单丁醚2.5～3份、烷基酚聚氧乙烯醚2～2.3份、异构醇聚氧乙烯醚1.8～2份、全氟辛基乙烯2.5～3份、甲基苯并三氮唑3.5～4份、二乙二醇醚6～8份。
2.根据权利要求1所述的甲醇汽油橡胶防溶胀剂，其特征在于，是由以下重量份数的组分制成：石油醚7份、异丙醇5份、丙二醇甲醚3.5份、三乙二醇单丁醚2.8份、烷基酚聚氧乙烯醚2.1份、异构醇聚氧乙烯醚1.9份、全氟辛基乙烯2.7份、甲基苯并三氮唑3.8份、二乙二醇醚7份。
3.一种如权利要求1所述的甲醇汽油橡胶防溶胀剂的制备方法，其特征在于，包括以下步骤：
(1)将所述重量份数的石油醚、异丙醇、三乙二醇单丁醚、烷基酚聚氧乙烯醚混合，然后用超声波分散仪，于48～50℃条件下，超声分散30～35分钟，得到A液；
(2)将所述重量份数的异构醇聚氧乙烯醚、全氟辛基乙烯、甲基苯并三氮唑、二乙二醇醚混合，然后用超声波分散仪，于42～46℃条件下，超声分散20～25分钟，得到B液；
(3)将A液、B液连同所述重量份数的丙二醇甲醚，混合到一起，于55～60℃条件下，用磁力搅拌机搅拌25～30分钟，即得。
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