Incresing Tensile Strength of HDPE
Incresing Tensile Strength of HDPE
(OP)
We are manufacturing HDPE water pipes. We want to use HDPE pipes for Submersible Bore Wells. For this we want to increase the tensile Strength of HDPE pipes.
Please fetch me information about additives that can increase tensile strength of HDPE pipes.
with thanks,
Sachi
Please fetch me information about additives that can increase tensile strength of HDPE pipes.
with thanks,
Sachi






RE: Incresing Tensile Strength of HDPE
RE: Incresing Tensile Strength of HDPE
I am using HDPE in one of my products, and we are using a 5% talc content, as recommended by the manufacturer. It took the HDPE from a semi soft state and made it closer in strength to ABS. My product has a snap fit design and the softer HDPE was just pulling apart. The 5% talc made an astounding difference. Check with the manufacturer of the raw material to get the specified percentage of talc to use in your project.
Good luck.
RE: Incresing Tensile Strength of HDPE
The large effect of talc noted by the previous poster is probably due to the fact that small amounts of fine talc can nucleate crystalisation of some polymers (PE, PP, nylon). That is probably why he saw a large effect for just a small amount of talc.
RE: Incresing Tensile Strength of HDPE
There are several options as to types. If this is a consideration, I will be happy to make grade suggestions or have further dialogue.
RE: Incresing Tensile Strength of HDPE
RE: Incresing Tensile Strength of HDPE
To do it in the circumferential direction, mica will be best.
Wollastonite is a fair to good value for money reinforcement if moderate gains are acceptable. I think it gives gains in both directions, but somewhat more so in direction of flow.
The higher the aspect ratio of fibres and the longer they are in relation to wall thickness, the more they align in direction of flow, and therefore the more they reinforce the material in direction of flow at the expense of reinforcement in other planes.
Regards
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RE: Incresing Tensile Strength of HDPE
It basically using a spining pin or bushing in the extrusion die to make the filler and polymer orient in a diagonal direction around the tube as it is extruded. Works good on flexible tube to increase kink resistance also. If you want more data send a personal message to me.
RE: Incresing Tensile Strength of HDPE