Intumescent char
Forms an insulating foam char that protects the substrate.
ПРИЛОЖЕНИЕ
Полифосфат аммония (ПРИЛОЖЕНИЕ) Supplier from China
Ammonium polyphosphate (ПРИЛОЖЕНИЕ) is a halogen-free phosphorus–nitrogen flame retardant used in intumescent coatings, полипропилен, эпоксидная смола, полиуретан, textiles and wood. SUNCHEM supplies APP with a batch COA on every shipment; the TDS is sent on request.
КАС 68333-79-9 · (NH₄PO₃)n · Phosphorus–nitrogen flame retardant
- Сертификат подлинности партии с каждой поставкой
- Образцы для ваших испытаний
- Техническая поддержка вашей пробной версии
Обзор продукта & ключевые преимущества
APP releases phosphoric acid when heated, which chars the polymer, and ammonia, which blows the char into an insulating foam. With a carbon source such as pentaerythritol and a blowing agent such as melamine it forms the classic intumescent system used in fire-protective coatings for steel and wood, and in halogen-free polypropylene.
Long-chain crystal phase II APP has low water solubility and suits plastics and coatings; surface-treated grades further reduce water pick-up. Фосфор, nitrogen, solubility and particle size are the numbers to compare.
Halogen-free, low smoke
No bromine or chlorine, with low smoke and corrosive gas.
Specified on your terms
We quote against your phosphorus and nitrogen content, crystal phase, degree of polymerization, water solubility, particle size and moisture and send the batch COA for each lot.
Технические характеристики
| Параметр | Типичное значение |
|---|---|
| Название продукта | Полифосфат аммония |
| Синонимы | ПРИЛОЖЕНИЕ; polyphosphoric acid, ammonium salt |
| Номер КАС. | 68333-79-9 |
| Формула | (NH₄PO₃)н |
| вид | белый порошок |
Phosphorus and nitrogen content, crystal phase, degree of polymerization, water solubility, particle size and moisture 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 APP is used, and what to confirm before you switch supply.
Intumescent fire-protective coatings
With pentaerythritol and melamine in fire-protective coatings for steel structures and wood.
Проверьте перед судом
- Coating type and fire standard
- Crystal phase and solubility
- Monthly volume
Halogen-free polypropylene
With a charring agent in halogen-free PP parts and in polyolefin compounds.
Проверьте перед судом
- UL 94 target
- Surface-treated or not
- Particle size
Epoxy, полиуретан, textiles and wood
Used in epoxy, rigid PU foam, textile back-coatings, wood and paper.
Проверьте перед судом
- Process
- Water resistance needs
- Sample for trials
Выбор & сравнение
Choosing the right APP grade
| Ваше требование | Что обычно работает |
|---|---|
| Intumescent coatings | Crystal phase II APP with low solubility |
| Halogen-free PP | Phase II or surface-treated APP with a charring agent |
| Humid service conditions | Surface-treated (coated) оценка |
| 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 closed in a dry store; APP absorbs moisture.
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
Phosphorus and nitrogen, crystal phase, degree of polymerization, water solubility, particle size and moisture.
Design the full system
APP works with a carbon source and blowing agent; test the complete formula, not APP alone.
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 | Покрытия, PP, эпоксидная смола, PU, текстиль, древесина |
| Требуемая спецификация | Crystal phase, растворимость, размер частицы |
| 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
Гидроксид алюминия
Mineral flame retardant and smoke suppressant for cables and resins.
Посмотреть товар →Полифосфат аммония (ПРИЛОЖЕНИЕ) Часто задаваемые вопросы
What is APP used for?
In intumescent fire-protective coatings, halogen-free PP, эпоксидная смола, PU foam, текстиль, wood and paper.
What is phase II APP?
A long-chain crystal form with low water solubility, preferred for plastics and coatings.
Which parameters should I compare between offers?
Phosphorus and nitrogen content, crystal phase, растворимость, particle size and moisture.
Can I get the TDS?
Да. Send an inquiry with your application and we email the TDS.
