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[Chemical Knowledge]：What are the upstream raw materials for NPG and what are the downstream products?

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N-Propyl ethylenediamine (NPG) is an important chemical raw material, which is widely used in polyurethane, rubber, plastics, coatings and other fields. In the upstream and downstream related products of NPG, it mainly involves the following aspects:

1. Upstream raw material

The upstream raw materials of NPG mainly include acrylonitrile, ethylenediamine, etc. Acrylonitrile is an important organic chemical raw material, which is mainly made of propylene, ammonia and air through oxidation, absorption and purification steps. Ethylenediamine is mainly prepared by the reaction of oxalic acid with ammonia. Fluctuations in the market price of these two feedstocks have an impact on the cost of NPG.

2. Downstream product

(1) Polyurethane

NPG can be used as a blowing agent for polyurethane foam, reacting with polyols, isocyanates and other raw materials to make rigid or flexible polyurethane foam. This kind of foam plastic has excellent thermal insulation, sound insulation, earthquake resistance and other properties, and is widely used in construction, home appliances, automobiles and other fields.

(2) Rubber additive

NPG can be used as a rubber accelerator to increase the vulcanization speed and crosslinking density of rubber, and improve the physical and mechanical properties and aging resistance of rubber. It is widely used in rubber products such as tires, rubber hoses and tapes.

(3) plastic additive

NPG can be used as a plastic additive to improve the processing performance and use performance of plastics. For example, the toughness and impact strength of the plastic can be improved.

(4) Coating additive

NPG can be used as a coating additive to improve the leveling, gloss and adhesion of the coating. In water-based coatings, oil-based coatings are applied.

In short, NPG has a wide range of applications in the field of chemical production raw materials, and its upstream and downstream related products cover polyurethane, rubber, plastics, coatings and other fields. With the continuous development of science and technology, the application field of NPG will continue to expand.

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