Product category:
Materials testing equipment
News Release from: Secomak | Subject: Latex testing machine
Edited by the Engineeringtalk Editorial
Team on 13 June 2005
Machine determines mechanical stability
of latex
Secomak's latest latex testing machine determines the mechanical stability of concentrated natural and synthetic latex rubber when subjected to high speed mechanical stirring or mechanical shear.
Secomak's latest latex testing machine determines the mechanical stability of concentrated natural and synthetic latex rubber when subjected to high speed mechanical stirring or mechanical shear Available for operation from 110 or 240V supplies, this system tests latex in accordance with British, European and ASTM standards
This article was originally published on Engineeringtalk on 31 Aug 2000 at 8.00am (UK)
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The machine runs at a high speed of 14,000rev/min but at a low torque.
If the latex rubber thickens or thins during stirring, the motor speed changes and indicates a material failure.
As latex instability - or the end point - is approached there is usually a drop in meniscus of the latex, accompanied by loss of turbulence and a change in the sound of the stirring action.
The end point is confirmed by the presence of an increased amount of coagulated rubber after 15 seconds of additional rotation.
The latex is subsequently given a mechanical stability value based on the number of seconds that elapsed between the start and end of the test.
A key feature of the machine is its highly reliable series wound motor.
This is electronically controlled and incorporates a feedback system to accurately maintain the selected speed.
Additionally, it comes with visual confirmation in the form of coloured LEDs and is supported by a matt black aluminium bracket on a chrome plated column.
The glass (synthetic) or Perspex (natural) beaker is retained in its aluminium table. Request a free brochure from Secomak ...
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