Materials in the Radio Control Industry

[UninterRC]

Hello everyone,

I am currently trying to figure out what would be the best material to use for applications in the Radio Control cars and trucks. I am trying to develop some parts for radio control models and i need advice on the best materials. The parts i want to develop are to be used in radio control cars and trucks. these cars go through a lot of abuse therefore the parts need to be have a lot of flexural and tensile strength.

Also its very important that the material used does not become very brittle in cold temperatures.

The parts also need to be a bit flexible so that they can absorb the force from impacts.


I am thinking of nylon filled with glass fibres.

Please see the video below, its a video showing rc cars in action. Also you can see a close up of the plastic parts used in such applications.

https://www.youtube.com/watch?v=Wk5PFvs_iqA

Regards

 

[IRstuff]

Why wouldn't you just use the materials already being used? By market forces, they are already the "best."

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[UninterRC]

Hi,

Maybe i didnt explain my self clearly, This is exactly what i want to use, i want to use the materials that are already being used, but who knows what they are using? Some people say they use nylon with fibres but this could be anything, there is be a secret formula used by each brand that has been developed through years of research and development.

therefore i am looking for an injection moulding material that would be as near as possible to the properties of the materials used by the bigger brands in the industry.

 

[dgallup]

Matweb returns 13,979 materials for "nylon". Even within the narrow confines of "glass filled nylon" you will find a 7,161 available materials with a corresponding large range of material properties. To start with, there are quite a few grades of nylon: 6, 66, 612, 12, 11 and probably others I'm not familiar with. Then there are many different amounts of glass fill loadings ranging from about 13 to 50%. There are differences in the length of the fibers as well not to mention you might want to consider carbon fiber fill if you really want "ultimate". In addition there are a host of additives; everything from lubricants to UV inhibitors, heat stabilizers, tougheners, pigments and more. And that's just scratching the surface.

Before one can pick the "best" material, you have to define what properties you need to maximize. You will find the result will be different for every component as the requirements for each part are different. Now if you just want to copy what someone else did, send the part off to a lab and have it analyzed.

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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[IRstuff]

Again, why reinvent the wheel?

https://www.google.com/search?q=RC+...X&ved=0ahUKEwiX3ser78TMAhUJ42MKHR0IAOMQsxgIHA

You say you want to use existing materials, so what's wrong with these search results?

TTFN
I can do absolutely anything. I'm an expert!
faq731-376 forum1529

 

[UninterRC]

Hey dgallup, thanks for the suggestion, i think thats a great idea. I will search for labs near me and see what i can find. I am wondering, which properties of these materials being tested could actually be revealed through testing? I am mostly interested in the following properties.

1. tensile strength
2. flexural strength
3. strain at yield or break (how brittle a material is) at cold and hot temperatures

 

[UninterRC]

I found a great company specialising in materials testing, only 20 minutes away from me. This is what they can actually do with plastics (polymers)

Characterise polymers
Evaluate their properties
Examine the surfaces of polymers
Identify contaminants
Provide a raw material assay
Validate cleanliness
Assess leachability/toxicity
Provide ongoing QA/QC
Predict shelf-life
Determine ageing.

I ve dropped them an email and waiting on their reply. I hope the pricing is reasonable.

To be able to get an insight into the material properties of the industry's top plastics is really exciting. will see how it goes.