Reactive, built into the polymer
The P–H group reacts into epoxy and polyester, so it does not migrate.
ПОСЛЕ
DOPO Flame Retardant Supplier from China
ПОСЛЕ (9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide) is a reactive phosphorus flame retardant and intermediate used mainly in halogen-free epoxy resins for printed circuit board laminates, and in polyester fibers and other polymers. SUNCHEM supplies DOPO with a batch COA on every shipment; the TDS is sent on request.
КАС 35948-25-5 · C₁₂H₉O₂P · 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide
- Сертификат подлинности партии с каждой поставкой
- Образцы для ваших испытаний
- Техническая поддержка вашей пробной версии
Обзор продукта & ключевые преимущества
DOPO carries a reactive P–H bond that adds to epoxy groups, double bonds and carbonyls, so it can be built into the polymer chain rather than blended in. Its largest use is in halogen-free epoxy resins for copper-clad laminates and printed circuit boards; it is also used to make flame-retardant polyester fibers and as an intermediate for DOPO derivatives and other phosphorus flame retardants.
Чистота, melting point and moisture matter because the P–H group is sensitive to oxidation and hydrolysis.
Halogen-free laminates
The basis of many halogen-free epoxy systems for PCBs.
Specified on your terms
We quote against your purity, температура плавления, moisture and chloride and send the batch COA for each lot.
Технические характеристики
| Параметр | Типичное значение |
|---|---|
| Название продукта | ПОСЛЕ |
| Синонимы | 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide |
| Номер КАС. | 35948-25-5 |
| EC No. | 252-813-2 |
| Molecular formula | C₁₂H₉O₂P |
| Молекулярный вес | 216.17 |
| вид | White powder or flakes |
Чистота, температура плавления, moisture and chloride limits depend on the producer grade and are stated on the TDS and batch COA; the limits for your order are confirmed in the quotation and contract.
Applications by Polymer
Where DOPO is used, and what to confirm before you switch supply.
Halogen-free epoxy for PCB laminates
Reacted with epoxy or phenolic novolac to make phosphorus-containing resins for copper-clad laminates.
Проверьте перед судом
- Resin route
- Purity and chloride
- Monthly volume
Flame-retardant polyester fibers
Used to make phosphorus-containing comonomers for flame-retardant PET fibers.
Проверьте перед судом
- Polymer route
- Чистота
- Bag size
Производные ДОПО
An intermediate for DOPO-HQ and other phosphorus flame retardants.
Проверьте перед судом
- Synthesis step
- Impurity limits
- Sample for trials
Выбор & сравнение
Choosing the right DOPO grade
| Ваше требование | Что обычно работает |
|---|---|
| PCB laminate epoxy | High-purity DOPO with low chloride |
| Polyester fiber comonomers | Specify purity and melting point |
| Intermediate for derivatives | Standard grade |
| Replacing an existing supplier | Отправьте текущий TDS или COA; we quote against the parameters you approve |
Упаковка & хранилище
Упаковка
Tell us the bag or drum size and pallet requirements you need; we confirm the packaging with the quotation.
Хранилище
Keep bags sealed in a cool, dry store; DOPO is sensitive to moisture and oxidation.
От первого электронного письма до одобренной поставки
Name the end use
Name the polymer and the fire rating you must meet — UL 94 class and thickness, LOI or cable standard.
Сравните цифры, которые имеют значение
Чистота, температура плавления, moisture and chloride.
Protect the material
Keep bags sealed and dry; moisture and air degrade the P–H group.
Trial, then lock the spec
Compound a trial batch, run your fire and mechanical tests, and keep the approved lot COA as the reference.
Сообщите нам ваше требование. Мы соответствуем рейтингу.
Расскажите нам о полимере, the fire rating you need, the quantity and the destination port. Add your current specification and we will quote against it.
| Информация | Пример |
|---|---|
| Приложение | PCB epoxy, polyester fiber, derivatives |
| Требуемая спецификация | Чистота, температура плавления, хлористый |
| Упаковка | Bag or drum size; pallets |
| Количество | Образец / trial order / годовой объем |
| Место назначения | Страна и порт |
| Необходимые документы | сертификат подлинности, паспорт безопасности, ТДС, RoHS/REACH |
Сопутствующие товары
DOPO FAQ
Для чего используется ДОПО?
Mainly to make halogen-free phosphorus-containing epoxy resins for PCB laminates; also for flame-retardant polyester fibers and as an intermediate for other phosphorus flame retardants.
Is DOPO additive or reactive?
Reactive: its P–H group bonds into the polymer.
Which parameters should I compare between offers?
Чистота, температура плавления, moisture and chloride.
Can I get the TDS?
Да. Send an inquiry with your application and we email the TDS.
