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超级增粘树脂Koresin在橡胶制品中应用的性能指标

发布日期:[2010-11-4 15:54:17]    共阅[4165]次

 

Koresin - a High Performance Tackifier

Applications
 
Koresin is recommended for the production of rubber compounds which require a high degree of tackiness. It is therefore ideally suited to manufacturing the following products:
 
 
  • all kinds of tires
  • materials for re-treading
  • conveyor belts, V-belts
  • industrial hoses
  • cable and roll coverings
  • lining materials
 
Outstanding Advantages
 
Koresin gives tire manufacturers in particular a range of advantages, as follows:
 
 
  1. high and long-term tackiness of rubber compounds made from natural or synthetic rubbers
  2. no effect on rubber vulcanization process
  3. physical characteristics of the vulcanized rubber remain nearly unchanged improved rubber extrudability
  4. improved resistance of rubber goods to ageing caused by exposure to heat and dynamic load
  5. better dispersion of carbon black
  6. process reliability
  7. unparalleled performance
 
Optimum Tackiness Performance
 
BASF’s customers appreciate Koresin as it improves workability, offering optimum tackiness behavior and outstanding long-term tackiness. Koresin prevents the vulcanization process from starting prematurely and thus improves process reliability: The compounds can be transported or stored for some time.
 
Technical Information
 
Specification
Test Criteria                                      Specification                            Test Method

 
Ubbelohde dropping point               140 – 160 °C                               DIN 51801
 
Ring and ball softening point           135 – 150 °C                               DIN 52011
 
Solubility in hydrocarbons                soluble                                        BASF method

                        
                
Properties
                
Physical form                                                   yellow to brown pellets & powder
 
Odor                                                                almost odorless

 
Softening point (ball and ring/DIN 52011)      135 – 150 °C          
 
Dropping point
(Ubbelohde/DIN 51801)                                 140 – 160 °C
 
Density (20 °C)                                              1.02 – 1.04 g/cm3
 
Solubility                                                        soluble in hydrocarbons
 
Storage stability                                            2 years

 

 

Trust in Superior Tackiness

The tackiness curves of various tackifiers identify Koresin as the superior short- and long-term tackifier. Similar results have been observed e.g. for steel cord (100% NR) and side wall compounds (NR:BR:EPDM 35:35:30). Koresin customers round the world have
for years confirmed the superior tackiness performance in all kinds of tires and rubber articles.

 

Influence on Vulcanization

 Another major advantage of Koresin compared to other tackifiers: Koresin has hardly any impact on the vulcanization behavior of the rubber mixes. In particular, the essential scorch time remains virtually unaffected if you add Koresin. Users therefore enjoy improved process reliability. The positive cure behavior of Koresin can be verified at various dosages of Koresin and in different polymer systems.

 

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