Stratek Plastic Ltd

Extensional / Elongational Flow Mixing
 

 

Events

 

 

May 16-20, 2010
Orlando World Center
Marriott Resort &
Convention Center
Orlando, Florida USA

 

June 7 - 10, 2010 
Fispal Food Service
Expo Center North
São Paulo - Brazil

 
 
   


 
 
Home Benefits
Benefits

What Are Tek-Mix Applications?

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Stratek’s patented Tek-MixTM  technology can be used for mixing and blending a wide range of materials for an equally wide range of applications.

Furthermore,  it can be added to any continuous processing machine such as:

-  single screw extruders
-  injection molding machines
-  twin screw extruders
-  kneaders

 

Specific Benefits

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The Tek-MixTM Process provides Specific Benefits to most plastics processing.  These benefits vary from process to process as is shown in the following table.

Specific Benefits



Tek-MixTM - Extensional / Elongational Flow Mixing
The Next Step in Mixing & Blending



 

Low Temperature Processing

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Requirements often exist for low temperature processing (often lower than normal usage). The low temperature capability in the Tek-Mix™ mixer permits the addition of thermally sensitive additives (liquid and solid), the creation of blends using thermally sensitive resins, and the processing of other sensitive materials.  

Organic pigments and additives, which are often less thermally stable than inorganic pigments, can often be used with the Tek Mix™ process.  Similarly, low temperature processing is ideal for compounding additives such as peroxide and accelerators into resins to enhance thermal control of radiation crosslinking.   If liquid additives are required, they can be injected and immediately dispersed without volatile flashing.  
  
The table below provides examples of typical processing temperatures of several resins.   The figures show the normal processing temperatures compared to Stratek's experience in processing these materials when using the Tek-Mix™ process.   All temperatures were measured by direct immersion of the probe into the melt stream at the die exit. 
  

 

Processing Temperatures

 

 

 

 

Normal Extruder Processing Exit Temperature °C

Actual Tek-Mix Processing Exit Temperature °C

 

 

 

PC (Bayer Makrolon 2658, 3208)

280 to 310

215

PA6 (BASF B3K)

260 to 290

175

ABS (BASF Terluran)

180 to 240

150

HDPE (Dow Dowlex IP 40)

200 to 280

145

PP (Sonoco FT120WB, Pinnacle 1704H)

200 to 300

165

PS (Atofina Fina 525, 585)

180 to 260

150

LDPE (Repsol Alcudia PE-033)

160 to 240

120

POE (polyolefin elast. TPE) Engage 8401

150 to 220

80




 


Newsflash

From the Stratek Reading Room...

"The Materials Analyst, Part 98:  A Tour of the World of Nylon-Part 1"
An Article by Michael Sepe, published in Injection Molding Magazine - July 2008

Stratek has done considerable experimentation and material processing involving Polyamides (Nylon).  Therefore this article caught our eye when we found it in the July Issue of Injection Molding Magazine.   We think it addresses both the basics and some more advanced information concerning the differences in the chemistry and structure of these two important materials.

Read more...