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Rubber composition containing carbon nano-tube

A technology of carbon nanotubes and compositions, which is applied in the field of curable compositions, and can solve problems such as unpredictability and existing space

Inactive Publication Date: 2013-03-27
LANXESS DEUTDCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since the specific carboxyl group content in HXNBR has not been studied in as much detail as other commercial elastomers, its properties in any composition are based on what might be available for other more typical elastomers results are unpredictable
However, because the applications for which HXNBR may be suitable are some extreme (rare) applications, such as special parts for oil wells, high performance belts, and roll covers, there is still room for improvement and new compositions based on HXNBR

Method used

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  • Rubber composition containing carbon nano-tube

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example

[0089] The details of the raw materials used in the following examples are summarized in Table 1 below.

[0090]

[0091] Preparation of curable composition according to the present invention

[0092] Use an internal mixer to mix HXNBR and MWNT in a ratio of 9:1 by weight. A two-roll rubber mixer was used to dilute the masterbatch containing 10wt% MWNT into different concentrations of MWNT. The final concentration of MWNT in HXNBR is 0 parts, 1 part, 2 parts, and 4 parts per hundred parts (phr) of HXNBR (see Table 2). After 5 minutes of HXNBR / MWNT plasticization, the curing agent DCP was added. Finally, the HXNBR mixture was cured at 10°C for 20 minutes.

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Abstract

The invention provides a curing composition containing a particular hydrogenated nitrile-butadiene rubber, at least one crosslinking agent, and a carbon nano-tube, a method for preparing the composition and applications for preparing curing rubber products. The curing rubber products show excellent thermal performance, oil resistivity and mechanical strength.

Description

Technical field [0001] The present invention relates to a curable composition comprising a specific hydrogenated nitrile rubber, a crosslinking agent, and carbon nanotubes, a method for preparing such a composition, curing treatment and use thereof. Background technique [0002] In principle, elastomers have been found to be widely used in a large number of applications. Furthermore, many special rubbers are available, which have a wide range of mechanical, chemical and physical properties at their disposal. Nitrile rubber (NBR) and its hydrogenated product, hydrogenated nitrile rubber, is also abbreviated as "HNBR", which represents this type of special rubber. Specifically, HNBR has very good heat resistance, excellent ozone and chemical resistance, and also excellent oil resistance. HNBR is used in (for example) seals, hoses, belts and clamping elements in the automotive field, stators, oil well seals and valve seals in the oil extraction field, and also used in the aviation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08K3/04C08K5/14C08K3/06B29C45/00
Inventor 克里斯托弗·翁斯蒂芬·帕斯克郭湘瑶张勇卢兰
Owner LANXESS DEUTDCHLAND GMBH
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