CN1045106C - 氟化物螺纹密封胶 - Google Patents
氟化物螺纹密封胶 Download PDFInfo
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- CN1045106C CN1045106C CN94101903A CN94101903A CN1045106C CN 1045106 C CN1045106 C CN 1045106C CN 94101903 A CN94101903 A CN 94101903A CN 94101903 A CN94101903 A CN 94101903A CN 1045106 C CN1045106 C CN 1045106C
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 230000003712 anti-aging effect Effects 0.000 claims description 6
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- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 229920003987 resole Polymers 0.000 claims description 2
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 5
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- 239000000463 material Substances 0.000 abstract description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 3
- 229920001568 phenolic resin Polymers 0.000 abstract description 3
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- 239000003566 sealing material Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 abstract 1
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- 239000000080 wetting agent Substances 0.000 abstract 1
- 229920001971 elastomer Polymers 0.000 description 5
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
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- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明属于机械螺纹耐油密封材料。
本发明提供一种以丁腈橡胶,聚四氟乙烯为主要材料,加入气相二氧化硅、酚醛树脂,以丙酮为溶剂以异氰酸酯为增粘剂,以乙二胺或5%的氨水为浸润剂制备机械螺纹耐油密封胶。
该密封胶具有良好的附着力,耐温、耐油性,可广泛应用于机械组合部件的螺纹密封。
Description
本发明属于机械螺纹耐油密封材料。
各种机械和齿轮减速器中螺孔和油介质相接触,另一端暴露于外界,螺栓与螺孔由于加工带来的公差,导致螺纹密封性能下降,使整体机械渗漏油,造成环境污染及产品质量下降。因此,人们开始研究密封材料弥补机械加工带来的不足,解决螺纹渗漏油的问题。
大连第二有机化工厂,北京椿树橡胶制品二厂,襄樊生物化学研究所,是以厌氧胶,尼龙,聚氨酯等为原料制备螺纹密封胶,由于厌氧胶和酯类价格较贵,成品性能不理想,因此难以广泛推广应用。
本发明的目的是提供一种以丁腈橡胶,聚四氟乙烯为主要材料,加入气相二氧化硅、酚醛树脂,以丙酮为溶剂的螺纹密封胶。
本发明的制备工艺是将丁腈橡胶和酚醛树酯于开炼机上混炼,温度在70℃以下,胶与树酯混均匀下辊,成1-1.5mm片材,片材粉碎后放入反应釜加入丙酮,溶解成胶液,再加二氧化硅和四氟乙烯粉,常温常压搅拌(3-4小时)均匀后,出釜为成品。
材料配比(以重量比计算):
丁腈橡胶100,聚氟乙烯25-65,二氧化硅10-65,糖3-5,酚醛树酯5-15,浸润剂0.5-3,防老剂0.5-1,丙酮400-500。
采用增粘剂为异氰酸酯,浸润剂是乙二胺或5%的氨水。
本发明制备的螺纹密封胶各种性能为:
(1)交变温度-40-140℃
(2)耐机油(95-100℃ 24hr)≤2.4
(3)最大填充间隙≤0.3mm
(4)抗张强度10公斤/cm2(1Mpa)
(5)室温常年贮存
本发明制备的螺纹密封胶具有良好的附着力,适当的延展性、弹性、蠕变性,确保螺栓负载恒定,同时具有良好的耐寒性,耐高温性,耐油性,因此,该密封胶使用温度宽,并且可广泛应用于机械组合部件的螺纹密封。
本发明提供的实施例如下:
实施例1:
丁腈胶100,聚四氟乙稀25,二氧化硅25,糖3,5%氨水2,丙酮400,防老剂1。
实施例2:
丁腈胶100,聚四氟乙稀50,二氧化硅50,糖3,5%氨水2,异氰酸酯10,丙酮500,防老剂1。
实施例3:
丁腈胶100,聚四氟乙稀60,二氧化硅10,5%氨水3,丙酮400,防老剂1。
实施例4:
丁腈胶100,聚四氟乙稀42.6,二氧化硅10,乙二胺3,异氰酸酯5,丙酮500,防老剂1。
Claims (1)
1.一种氟化物螺纹密封胶,其特征在于该密封胶的配方如下:
(以重量比计算)丁腈橡胶100、聚四氟乙烯25-65、二氧化硅10-65、糖3-5、酚醛树脂5-15、浸润剂0.5-3、防老剂0.5-1、丙酮400-500、所用增粘剂为异氰酸酯,浸润剂为乙二胺或5%的氨水。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN94101903A CN1045106C (zh) | 1994-03-03 | 1994-03-03 | 氟化物螺纹密封胶 |
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---|---|---|---|
CN94101903A CN1045106C (zh) | 1994-03-03 | 1994-03-03 | 氟化物螺纹密封胶 |
Publications (2)
Publication Number | Publication Date |
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CN1107881A CN1107881A (zh) | 1995-09-06 |
CN1045106C true CN1045106C (zh) | 1999-09-15 |
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CN94101903A Expired - Fee Related CN1045106C (zh) | 1994-03-03 | 1994-03-03 | 氟化物螺纹密封胶 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10155413A1 (de) * | 2001-11-10 | 2003-05-22 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
CN103481513A (zh) * | 2013-09-23 | 2014-01-01 | 苏州市涵信塑业有限公司 | 一种包氟橡胶密封垫的加工方法 |
CN109504497B (zh) * | 2018-12-17 | 2021-07-06 | 内蒙古三业科技开发有限公司 | 一种高温防腐修复剂及其制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1031107A (zh) * | 1987-08-07 | 1989-02-15 | 湖南省长沙化工机械厂 | 通用金属切削液的制备方法 |
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1994
- 1994-03-03 CN CN94101903A patent/CN1045106C/zh not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1031107A (zh) * | 1987-08-07 | 1989-02-15 | 湖南省长沙化工机械厂 | 通用金属切削液的制备方法 |
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CN1107881A (zh) | 1995-09-06 |
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