Propriétés Physiques
Données de Demi-Vie
Produits de Décomposition: methane, tert-butyl alcohol
Aliases & Synonyms
- Also written as
- Bis(tert-butyl) peroxide
- Other names
- di-t-butyl peroxide · DTBP
- Also supplied under these brand names*
- Trigonox B · Luperox DI(Commercial Reference)*
* Brand names are trademarks of their respective owners and are referenced for identification purposes only. LAAP products are not manufactured or endorsed by these companies.
Aperçu
Le DTBP est un peroxyde organique à haute température couramment utilisé comme initiateur pour la polymérisation à haute pression, en particulier dans la réticulation du caoutchouc et la polymérisation des résines acryliques. De plus, il sert d'agent polyvalent dans la dégradation du polypropylène, ce qui en fait un composant clé dans une variété de processus industriels nécessitant une manipulation précise et efficace des polymères.
Guide Technique de Sélection
Présentation du Produit
Di-tert-butyl peroxide (DTBP, CAS 110-05-4) is a high-temperature dialkyl peroxide with 10.72% active oxygen and a 10-hour half-life temperature of 121°C. It is the workhorse initiator for high-pressure ethylene polymerization and for the controlled-rheology (visbreaking) modification of polypropylene, where its high decomposition temperature lets it act late in the process without premature radical generation.
Profil de Demi-Vie et de Température
The half-life series — 164℃ at 0.1 h, 141℃ at 1 h, 121℃ at 10 h — defines a process window of roughly 140-180°C. Because the decomposition temperature is high, DTBP is normally the last initiator injected in a cascade, or the only one used where the reaction mass must be kept below the decomposition threshold until the desired point in the cycle. Its decomposition products are methane and tert-butyl alcohol, both volatile and easily stripped.
Sélection au Sein de la Même Famille
DTBP (121°C) is the highest-temperature member of the LAAP dialkyl family, above BPDH (CAS 78-63-7, 128°C in 1 h terms), TBCP (CAS 3457-61-2, 120°C) and DTAP (CAS 10508-09-5, 108°C). Choose DTBP when the process runs 150-180°C or when the initiator must survive a hot feed zone. For lower-temperature crosslinking duties, step down to DCP (CAS 80-43-3, 117°C) or BIPB (CAS 25155-25-3, 115°C). Unlike DCP, DTBP does not produce acetophenone, which makes it attractive for odour-sensitive high-temperature processes.
Qualité, REACH et Documentation
Standard DTBP is a colourless clear liquid with 10.72% active oxygen. Typical controls are assay, active oxygen, colour and water content. Each batch ships with a CoA; REACH-compliant SDS and a TDS with the half-life table are available.
Conditionnement, MOQ et Délai
Standard packing is 20 kg polyethylene drums, with custom sizes on request. SADT is 80°C and the recommended storage range is -30°C to 40°C, which is unusually wide and makes DTBP one of the easier products to store. Minimum order quantity starts at 25 kg, and quotations are returned within 24 hours.
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