antioxidants and UV stabilizers for polyolefins

Polyolefins in this section include 

  1. general and filled pp molding.
  2. PP extrusion pipe, sheet, profiles, yarn, BCF, nonwoven, tapes, monofilaments, film. 
  3. general and rotomolding PE molding HDPE, LLDPE.
  4. PE extrusion pipe, PE, PE-x cable, tapes, monofilaments, HDPE film, LDPE / EVA  film, LDPE and LLDPE, EVA  agriculture film.

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Table 1 Features of antioxidants and UV stabilizers for polyolefins

category Product name  MW MR description
antioxidant Linanox 168 647 183 -186 Hydrolytically stable phosphite, maintains color properties
Linanox 1010 1178 110 – 125 High molecular weight, phenolic antioxidant (AO); extends long-term thermal stability
Linanox 1024 553 221 – 232 High-performance phenolic AO and metal deactivator (Cu inhibitor)
Linanox 1035 643 63 – 78 Phenolic AO for cross-linked or carbon black containing systems
Linanox 1076 531 50 – 55  Highly compatible, low-color phenolic AO
Linanox 3114 784 218 – 223 Non-discoloring phenolic AO; high extraction resistance
Linanox B215 NA NA Synergistic phenol /phosphite blend, medium phosphite content, for a balanced processing and LTTS
Linanox B225 NA NA  Synergistic phenol /phosphite blend with extended LTTS
Linanox B900 NA NA Synergistic phenol /phosphite blend with high phosphite level
Linanox dltdp 515 39 – 41 Synergist extending the LTTS of phenolic AOs
Linanox dstdp 683 64 – 67 Synergist extending the LTTS of phenolic AOs
UV absorber Linsorb 234 448 137 – 141 Benzotriazole with low volatility
Linsorb 236 316 138 – 141 Benzotriazole with enhanced absorption of long-wave UV radiation
Linsorb 531 326.4 47 – 49 Benzophenone with excellent compatibility
hindered amine light stabilizer Linsorb 622 3100 – 4000 50 – 70 High molecular weight HALS with low volatility and minimal migration
Linsorb 770 481 81 – 85 Low molecular weight HALS, particularly for thick section applications
Linsorb 783 NA NA Synergistic blend of high molecular weight HALS with broad food contact clearance
Linsorb 791 NA NA Synergistic blend of high and low molecular weight HALS for thick section applications
Linsorb 944 2000 – 3100 100 – 135 High molecular weight HALS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2 Selection of antioxidants and UV stabilizers for polyolefins

    pp moulding PP extrusion PE
molding
PE extrusion
category Name GR filled Pipe sheet profile Yarn BCF

Non

woven

Tapes mono
filament
Film HD-, LLD-PE GR

LLD-PE roto

mold

Pipe PE, PE-x cable

Tapes

mono

filament

HDPE film LD-/ EVA LLD-PE film LD-, LLD-PE, EVA agro
antioxidant 168
1010    
1024                      
1035                          
1076        
 3114              
B215      
B225      
B900                    
DLTDP                      
DSTDP                
UV absorber UV 234                      
UV 326      
UV 531          
hindered amine light stabilizer HALS 622  
HALS 770                    
HALS 783
HALS 791                    
HALS 944

□ can be used,  ■ recommended

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