Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Ensure Safety and Keep Costs Down: Solving Industrial Challenges with Nanotube-Containing Polyurethane Shafts

Abstract:
Graphene nanotube-reinforced anti-static polyurethane shafts are becoming the new industry standard and help manufacturers keep production costs down and ensure occupational safety. Introducing as little as 0.03% of nanotubes is sufficient to impart uniform anti-static properties to polyurethane while maintaining its key properties.

Ensure Safety and Keep Costs Down: Solving Industrial Challenges with Nanotube-Containing Polyurethane Shafts

Luxembourg | Posted on April 26th, 2019

Graphene nanotubes are one of the most advanced conductive additives. They are widely used in polyurethanes in the production of shafts and rollers for various industries. High performance characteristics and stable anti-static properties of shafts with nanotubes make them the new industry standard.



Static electricity accumulation threatens industrial facilities equipped with production or transportation lines. The friction between a conveyor belt and the shaft that sets it in motion results in near-constant generation of electrostatic charge that can lead to a halt in production. Adhesion of such materials as fabric and film or a paper jam can also be responsible for a production line stoppage and related loses.



Another problem created by the static charge is adherence of dust. This increases the rejection rate when handling white or light-colored articles, for example, fabric, fiber or packaging. In addition, workers are constantly exposed to unpleasant electric shocks.



These problems lead a growing number of manufacturers to switch to anti-static polyurethane. To impart anti-static properties to a nonconductive polymer, conductive fillers must be added during the material manufacturing process. Until recently, carbon black and special mineral/organic fillers were typically used as a conductive additive. However, the required high concentrations of these additives in the range of 10–15% of the total weight of the material lead to a loss of strength and reduced life cycle of products.



When used in polyurethanes as an anti-static additive, graphene nanotubes demonstrate outstanding results. In order to obtain volume resistivity within the range of 10^9–10^4 Ω·cm, it is sufficient to add graphene nanotubes in a working concentration that is 100 times less than that of ammonium salts and 500 times less than that of carbon black. Moreover, graphene nanotubes provide a wider range of resistance levels as compared to ammonium salts. Unlike carbon black, they achieve uniform distribution in materials, preserve the original physical and mechanical properties and leave no black “smearing” traces on the surface of output products (fabric, paper, film, etc.) thus preventing the occurrence of rejects.



The conductivity level obtained with the help of nanotubes neither degrades over time nor depends on humidity or temperature. This is especially important for industrial shafts, as they operate under conditions of continuous friction heating. Nanotubes also prevent dust gathering on equipment.



A concentrate of pre-dispersed graphene nanotubes recently developed by OCSiAl has made it possible to overcome the difficulties previously associated with the distribution of nanotubes in polyurethane systems and is already being successfully applied in industrial productions. By introducing as little as 0.3 wt.% of TUBALL MATRIX nanotube-based concentrate when manufacturing polyurethane shafts, Unikom-Service Research & Production Company, a Russian enterprise, succeeded in manufacturing products with permanent and stable anti-static properties in the range of 10^9–10^7 Ω·cm. This also enabled them to manufacture products with electrical conductivity properties and resistance values in the range of 10^7–10^5 Ω·cm that do not have “hot spots” while retaining important strength characteristics.



Unikom-Service has developed technologies for producing anti-static polyurethane materials with a wide range of hardness: from Shore A hardness of 60 units to Shore D hardness of 70 units and on different bases such as TDI, MDI, NDI.



Material

System

Hardness

Volume resistivity, Ω·cm (with TUBALL MATRIX applied)

UNIKSPUR 1А095TA

TDI-Ether

94 A

5 x 10^5

UNIKSPUR 7А700TA

TDI-Ether

70 D

4 x 10^6

UNIKSPUR 1B095TA

TDI-Ester

93 A

4 x 10^5

UNIKSPUR 4B075TA

Quasi-MDI-Ester

75 A

4 x 10^5

UNIKSPUR 2B092SТА

NDI

92 A

3 x 10^6



A Russian manufacturer of polyurethane shafts for winding wool fiber is another successful example. They use 0.5 wt.% of pre-dispersed nanotube concentrate to achieve a uniform and stable surface resistivity level of 10^8 Ω/sq.



TUBALL graphene nanotubes manufactured by OCSiAl find a growing number of applications in the polyurethane market. They are already used in the production of industrial wheels, rollers and scraper pigs for various industries. Due to their high performance, these products are in high demand in the industry.

####

For more information, please click here

Contacts:
Anastasia Zirka
PR & Advertising manager
OCSiAl Group
+7 913 989 9239

Copyright © OCSiAl Group

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

An EPiQS Pursuit: Physicist Andrea Young is chosen to receive an Experimental Investigator award from the Moore Foundation May 28th, 2020

Study finds electrical fields can throw a curveball: Particle-scale phenomenon akin to the swerving of a curveball could allow selective separation of suspended nanomaterials May 26th, 2020

Surrey reveals its implantable biosensor that operates without batteries May 22nd, 2020

Researchers demonstrate transport of mechanical energy, even through damaged pathways: Topological pump can provide stability for communication technologies May 22nd, 2020

Graphene/ Graphite

Oriented hexagonal boron nitride foster new type of information carrier May 22nd, 2020

Oil & gas and automotive sectors will benefit from durable polymers with graphene nanotubes May 14th, 2020

Graphene ink may be used to fight coronavirus May 1st, 2020

Multi-functionalization of graphene for molecular targeted cancer therapy April 24th, 2020

Nanotubes/Buckyballs/Fullerenes/Nanorods

Oil & gas and automotive sectors will benefit from durable polymers with graphene nanotubes May 14th, 2020

OCSiAl becomes the largest European supplier of single wall carbon nanotubes with its upgraded REACH registration April 23rd, 2020

Double-walled nanotubes have electro-optical advantages :Rice University calculations show they could be highly useful for solar panels March 27th, 2020

Groovy key to nanotubes in 2D: Why do carbon nanotubes line up? They're in a groove March 16th, 2020

Announcements

An EPiQS Pursuit: Physicist Andrea Young is chosen to receive an Experimental Investigator award from the Moore Foundation May 28th, 2020

Study finds electrical fields can throw a curveball: Particle-scale phenomenon akin to the swerving of a curveball could allow selective separation of suspended nanomaterials May 26th, 2020

Visualization of functional components to characterize optimal composite electrodes May 22nd, 2020

Researchers demonstrate transport of mechanical energy, even through damaged pathways: Topological pump can provide stability for communication technologies May 22nd, 2020

Industrial

Bubble-capturing surface helps get rid of foam: Bubbly buildup can hinder many industrial processes, but a new method can reduce or even eliminate it February 12th, 2020

NIOSH requests data to help develop exposure limits for nanomaterials February 1st, 2020

Matching Investment Program (MIP) Leverages $140K Empire State Development/NYSTAR Funding to SUNY Poly’s CATN2 to Enable $1.5M in Matching Commitments from Industry Partners: Investment Funds Faculty Research Related to Advanced Materials, Genomics, and Semiconductor Reliability October 18th, 2019

The future of materials with graphene nanotubes starts in Japan September 19th, 2019

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project