EVA MD Processing Blowing Agents

Main component: Azodicarbonamide
Appearance: light yellow powder
Usage: EVA,PE,PVC and multiple rubbers, EVA shoe material

Products Introduction:

This series of foaming agents is used widely in the foaming of plastics, such as EVA,PE and PVC and multiple rubbers. It is particularly suitable for the hot-pressing molding of EVA shoe material in large or small molds.

 

Features:

Foaming at mid-temperature

High whiteness of final products

Stable performance of final products

Uniform and fine cells

No formaldehyde

Safe and environment-friendly

 

Application specification:

This series of foaming agents decomposes around 160°c in EVA/rubber mixture to release useful nitrogen, carbon dioxide and a small amount of ammonia. The decomposing temperature isn't high, no activator is needed to activate its decomposition. It decomposes completely within a short time without producing the unnecessary color resulting from the residual foaming agent. Or add a small quantity of zinc oxide or stearic acid to activate it decompose at a lower temperature.

 

The decomposition of this series of foaming agents is mild, and its decomposition process matches the half-time decomposition of bridging agent (DCP), so that the foaming speed will match the bridging speed. All of those lead to the following results: cells in the foamed products will be fine, the time necessary for foaming and bridging will be reduced greatly, each physical properties of products is excellent, especially a great improvement on resilience.

 

Same with low-temperature foaming agents, this series of foaming agents can endow products with an adequate whiteness without adding too much titanium white or other white paint, which helps to avoid affecting products' other physical performances by adding too much white paint. This series of foaming agents is free of the odor characteristic of formaldehyde generated by common low-temperature foaming agents.

 

As an ideal modified AC blowing agent, the mid-temperature foaming agent integrates the merits of both high-and low-temperature foaming agents together.

 

Technical index:

Item No.		JTR-L	JTR-M	JTR-H
Chemical component		Azodicarbonamide
Appearance		Light yellow powder liable to dispersion
Decomposition temperature (°c)		140±3	150±3	160±3
Gas volume(ml/g)	STP	165±5	170±5	175±5
Particle size (um)		6~8	6~8	6~8
Moisture  (%)		≤0.3
pH		7.5~8.0

 

Package and storage:

The mid-temperature foaming agent has excellent stability when stored under the common temperature. It should be kept in cool and dry place,  away from hot steam pipeline, fire source and direct sunlight. Never let it contact directly organic acid and inorganic acid. 

 

Each 25KG of this series of foaming agent is packed in plastic lined bag, carton or fiber drum according to customers' requirements.

 

A batch of this series of foaming agent weighs 3 tons. While using the agent of same batch, only a handful is needed to test for confirmation, and then the whole batch can be used with certainty.