Polymer Antioxidant – prevent polymers thermal oxidation

what are antioxidant?

Antioxidants are used for anti-aging, vitamin has anti-oxidation functions. when it comes to industry,  certain antioxidant work for the same purpose.  antioxidant as used to improve polymers’ high-temperature stability.

Polymer antioxidants including hindered phenolic, amine which belongs to the primary antioxidant,  phosphite, thioesters which belongs to the auxiliary group, and blends of a primary with an auxiliary.

 

what’s antioxidants’ application and how to choose?

Antioxidants are widely used in plastics, rubber, fiber, coatings, and adhesives industry. Basically, antioxidants are used in every polymers processing,  antioxidant selection guide as the table below, For mobile phone user, please click HERE to view PDF copy. 

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Linanox Antioxidants Portfolio

Product Name equivalent to CAS Melting Range
Linanox 1010  Irganox 1010 6683-19-8 110-125
Linanox 1024 Irganox 1024 32687-78-8 225-232
Linanox 1035 Irganox 1035 41484-35-9 63-82
Linanox 1076 Irganox 1076 2082-79-3 50-55
Linanox 1098 Irganox 1098 23128-74-7 155-161
Linanox 1135 Irganox 1135 125643-61-0 /
Linanox 1520 Irganox 1520 110553-27-0 14
Linanox 168 Irgafos 168 31570-04-4 183-187
Linanox 1726 Irganox 1726 110675-26-8 28
Linanox 1790 Cyanox 1790 40601-76-1 159-163
Linanox 245 Irganox 245 36443-68-2 76-79
Linanox 3114 Irganox 3114 27676-62-6 218-220
Linanox 330 Ethanox 330 1709-70-2 240-245
Linanox 412s Naugard 412s 29598-76-3 48-54
Linanox 5057 Irganox 5057 68411-46-1 /
Linanox 626 Ultranox 626 26741-53-7 170-180
Linanox 697 Irganox 697 70331-94-1 174-180
Linanox 702 Ethanox 702 118-82-1 155-159
Linanox DLTDP Irganox PS 800 123-28-4 39.5-41.5
Linanox DSTDP Irganox PS 802 693-36-7 63.5-68.5
Linanox B215/B225 Irganox B215/B225 6683-19-8/
31570-04-4		 /
Linanox B900 Irganox B900 2082-79-3/
31570-04-4		 /

Features of Linanox Antioxidants

Product Name MW MR Features
168 647 183 -186 Hydrolytically stable phosphite, maintains color properties
1010 1178 110 – 125 High molecular weight, phenolic antioxidant (AO); extends long-term thermal stability
1024 553 221 – 232 High-performance phenolic AO and metal deactivator
1035 643 63 – 78 Phenolic AO for cross-linked or carbon black containing systems
1076 531 50 – 55 Highly compatible, low-color phenolic AO
1098 637 156 -161 Low color phenolic AO, excellent compatibility with PA
1135 390 < -30 Liquid phenolic AO, specifically for PUR
1520 425 12-15 Synergistic, multifunctional AO for elastomers and TPE
245 586.8 76 – 79 Phenolic AO, excellent performance in engineering polymers
3114 784 218 – 223 Non-discoloring phenolic AO; high extraction resistance
5057 NA NA Liquid aromatic amine for processing and LTTS
B215 NA NA Synergistic phenol/phosphite blend, medium phosphite content for a balanced processing and LTT stability
B225 NA NA Synergistic phenol/phosphite blend, low phosphite content
B900 NA NA Synergistic phenol/phosphite blend, high phosphite content
dltdp 515 39 – 41 Synergist extending the LTTS of phenolic AOs
dstdp 683 64 – 67 Synergist extending the LTTS of phenolic AOs

Remark: AO refers to antioxidant, LTTS refers to long term thermal stabilization.

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