Nouryon 21s Peroxide for Polyurethane Rubber

Product Description

Nouryon 21S Peroxide

Product Description

 

Nouryon 21S Storage
Due to the relatively unstable nature of organic peroxides a loss of quality can be detected over a period of time. To minimize the loss of quality,Nouryon
recommends a maximum storage temperature (Ts max.) for each organic peroxide product.

For Trigonox 21S :Ts max.= 20°C and
                              Ts min. = -30°C to prevent crystallization

When stored according to these recommended storage conditions, Trigonox 21S will remain within the Nouryon
specifications for a period of at least 3 months after delivery.

 

Nouryon 21S Thermal stability
Organic peroxides are thermally unstable substances, which may undergo self-accelerating decomposition. The lowest temperature at which self-accelerating decomposition of a substance in the original packaging may
occur is the Self-Accelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage Test.

For Trigonox 21S       SADT:35°C .
                                   Emergency temperature (Tem): 25°C
                                   Control temperature (Tc): 20°C

The Heat Accumulation Storage Test is a recognized test method for the determination of the SADT of organic peroxides (see Recommendations on the Transport of Dangerous Goods,Manual of Tests and Criteria - United Nations, New York and Geneva).

 

Nouryon 21S Safety and handling
Keep containers tightly closed. Store and handle Trigonox21S in a dry well-ventilated place away from sources of heat or ignition and direct sunlight. Never weigh out in the storage room.

Avoid contact with reducing agents (e.g. amines), acids, alkalis and heavy metal compounds (e.g. accelerators, driers and metal soaps).

Please refer to the Material Safety Data Sheet (MSDS) for further information on the safe storage, use and handling of Trigonox 21S. This information should be thoroughly reviewed prior to acceptance of this product.

Major decomposition:Carbon dioxide, tert- Butanol, Heptane, 3-tert- Butoxyheptane products

Nouryon 21S Packaging and transport
In North America Trigonox 21S is packed in non-returnable, vented, five gallon polyethylene containers of 35 lb net weight.

In other regions the standard packaging is a 30-liter HDPE can (Nourytainer), vented, for 25 kg peroxide content.

Both packaging and transport meet the international regulations. For the availability of other packed quantities consult your Nouryon representative.

Trigonox 21S is classified as Organic peroxide type C; liquid, temperature controlled, Division 5.2; UN 3113; PG II.

 

Product Parameters

Product description	Molecular weight:	216.3
	Active oxygen content peroxide:	7.40%
	actual product:	7.1 7 % min
	CAS No.:	3006-82-4
	EINECS/ELINCS No.:	221-110-7
	TSCA status:	listed on inventony
Specifications	Appearance:	Clear liquid
	Color:	20 Pt-Co / APHA max
	Assay:	97.0% min
	TBHP:	500 mg/kg max
	Inorganic + organic hydrolysable chloride:	100 mg/kg max
Characteristics	Density,20°C:	0.900 g/cm3
	Viscosity, 20°C:	4.3 mPa.s

 

Application

Trigonox 21S, tert- butyI peroxy -2-ethylhexanoate, is a perester which is used for the curing of unsaturated polyester resin at elevated and high temperatures.

Trigonox 21S is preferred for the curing of UP resin based Hot Press Moulding formulation (such as SMC and BMC) in the temperature range of 120 - 160°C. As Trigonox 21S is a high reactive peroxide, it is very suitable as a kicker in formulations for pultrusion and SMC/BMC.

In combination with a cobalt accelerator, Trigonox 21S is also applicable for the cure of UP resins in the temperature range of 60°C and higher. Application area can be air drying lacquers, diplacquers, wall panels, filament winding, etc.

Trigonox 21S has normally a much shorter pot life in the pure resin than Trigonox C, tert-butyl peroxybenzoate.

Our Advantages

Why Choose Us?

1.Provide Full Export Certificates Necessary For Export In Short Time, Delivery Time Fast .

2.No District Limit , Can Export Our Chemicals To Every Corner Of The World.

3.Corporate With World Famous Brand, Quality Assured, Cost Effective .

4.Professional And Strong Technical Support.

5.Full Line Nouryon Brand Peroxides

6.Hot Chemicals, Short Of Supply Chemicals, We Have .

7.Rich Export Experience In High Dangerous Goods , Like Chemicals Trigonox 301,Perkadox 16 Which Need Cool Container.

Production Process

Company Profile

Evergreen Chemicals is a leading manufacturer and supplier of chemical composite materials in China. We've been and kept leading roles in this industry for more than 20 years, serving 8000+ customers all over the world from more than 25 fields. Our company is located in Jiangyin, half an hour to Shanghai by train, enjoying convenient transportation access.

We are specialized in researching, producing and distributing resin materials and its auxiliaries with premium quality. Our main products are unsaturated polyester resin, epoxy resin, vinyl resin and organic peroxides. In addition to market our own products, we are also the distributor of some global brands like NUORYON, SWANCOR, AOC, INOES etc.  

Besides, auxiliaries like curing agent, accelerator, and initiator are also available here to customers. Our products are widely used in the fields of automobiles, tent poles, cooling towers, pipes, FRP, artificial stones, handicrafts, and resin manhole covers.

Certifications

FAQ

1. Q: Is your company a manufacturer?
     A: Yes,we are. At the same time, we are also agents of other product brands.

2. Q:  Does your company provide samples?
     A:  Yes,we  can provide 100g and 200g for additive and 500g/1kg for resin as free samples,  but freight usually requires the buyer to bear.

3. Q:What is your company's  transportation form?
     A: Samples generally deliver by international express, a large number of goods can be transported by land or water.

4: Q: What is the quality and price of your product?
     A: Specializing in epoxy resin and other unsaturated polyester resin .100% tested and working before shipment .best price will grant you as per your quantity .

5. Q: How many days the clear phenolic epoxy resin could sotre ?
    A: 12 months below 25ºC in dark.