Физические Свойства
Данные Периода Полураспада
Продукты Разложения: carbon dioxide, tert-butyl alcohol, 3,3,5-trimethylhexanoic acid, methane, acetone, 2,2,4-trimethylpentane
Aliases & Synonyms
- Other names
- TBPMH
- Also supplied under these brand names*
- Trigonox 42 · Luperox 270(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.
Обзор
TBPMH - высокоэффективный инициатор полимеризации, используемый в основном для производства полиэтилена низкой плотности (ПЭНП/LDPE) как в трубчатых, так и в автоклавных процессах. Он также широко применяется при полимеризации стирола и акрилонитрила. В промышленности термореактивных пластмасс TBPMH действует как среднетемпературный отвердитель для ненасыщенных полиэфирных смол, что делает его пригодным для рецептур SMC и BMC, требующих точного контроля отверждения.
Техническое руководство по выбору
Обзор продукта
tert-Butyl peroxy-3,5,5-trimethylhexanoate (TBPMH, CAS 13122-18-4) is a medium-temperature peroxyester with 6.95% active oxygen and a 10-hour half-life temperature of 94°C. It is a primary initiator for the production of low-density polyethylene (LDPE) in both tubular and autoclave processes, and is also used in styrene and acrylate polymerization and in unsaturated polyester curing.
Профиль периода полураспада и температуры
TBPMH's half-life series (135℃ at 0.1 h, 114℃ at 1 h, 94℃ at 10 h) gives a process window of roughly 110-150°C. In LDPE reactors TBPMH is typically used in the mid-section of the initiator cascade, after a faster peroxydicarbonate has started the reaction and before the high-temperature dialkyl peroxide takes over at the peak. The choice of injection point is governed by the 1-hour half-life, which is the point at which the initiator contributes the bulk of its radical flux.
Выбор внутри одного семейства
Within the LAAP peroxyester family, TBPMH (94°C) sits between TBPEH (CAS 3006-82-4, 73°C) and TBPA (CAS 107-71-1, 100°C). Choose TBPMH when the process runs 110-150°C and a liquid initiator with good thermal stability is required. Its branched 3,5,5-trimethylhexanoate group improves solubility in non-polar monomers compared with linear peroxyesters, which is why it is favoured in LDPE and in styrenic systems.
Качество, REACH и документация
TBPMH is a clear liquid, ≥97.0% pure, with a colour specification below 30 Pt-Co. 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.
Упаковка, MOQ и срок поставки
Standard packing is 20 kg polyethylene drums, with custom packaging on request. SADT is 55°C with a recommended storage range of -20°C to 25°C, so cold-chain shipping applies. Minimum order quantity starts at 25 kg, and quotations are returned within 24 hours.
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