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Shear thickening fluid containing carbon nanoparticles and shock absorbing material comprising same
US9909018B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9909018-B2 |
| Application number | US-201415035237-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2014 |
| Priority date | Nov 7, 2013 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
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Abstract
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Disclosed are a shear thickening fluid (STF) comprising solid particles and a dispersion medium, wherein the solid particles comprise silica particles as a first component and carbon nanoparticles as a second component and a method for preparing a shear thickening fluid, comprising mixing silica particles, a dispersion medium for silica particles, and a carbon nanoparticle dispersion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A shear thickening fluid (STF) comprising solid particles and a dispersion medium, wherein the solid particles comprise silica particles as a first component and carbon nanoparticles as a second component, wherein the carbon nanoparticles are graphene oxide nanoparticles, graphene nanoparticles or graphite oxide nanoparticles and are contained in an amount of 5-20 wt % based on the total weight of the shear thickening fluid, wherein the silica particles are fumed type particles having a bimodal particle size distribution which are distributed non-uniformly in the dispersion medium and are contained in an amount of 5-30 wt % based on the total weight of the shear thickening fluid, wherein the fumed type silica particles include small-diameter silica particles and large-diameter silica particles, a size of the small-diameter silica particles being 50-100 nm and a size of the large-diameter silica particles being 110-150 nm, wherein a weight ratio of the small-diameter silica particles and the large-diameter silica particles is 6:4 to 9:1. 2. The shear thickening fluid of claim 1 , wherein the dispersion medium is selected from the group consisting of polyethylene glycol, ethylene glycol, and polypropylene glycol. 3. A shock-absorbing material containing the shear thickening fluid of claim 1 .
Assignees
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Classifications
Ethers (D06M13/11 takes precedence) · CPC title
Graphene or derivatives, e.g. graphene oxides · CPC title
Silica · CPC title
with silicon dioxide, silicic acids or their salts · CPC title
Polyoxyalkyleneglycol ethers · CPC title
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Frequently asked questions
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- What does patent US9909018B2 cover?
- Disclosed are a shear thickening fluid (STF) comprising solid particles and a dispersion medium, wherein the solid particles comprise silica particles as a first component and carbon nanoparticles as a second component and a method for preparing a shear thickening fluid, comprising mixing silica particles, a dispersion medium for silica particles, and a carbon nanoparticle dispersion.
- Who is the assignee on this patent?
- Korea Inst Ind Tech
- What technology area does this patent fall under?
- Primary CPC classification C09D7/44. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).