Britannica Sources used in this answer

How is propylene used to make acrylics epoxy glue and carpets?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Dow Chemical Company — chemical industry Dow Chemical plant in South Charleston, West Virginia.

Propylene is a versatile hydrocarbon used in the chemical industry to manufacture a variety of materials, including acrylics and carpets. Its role in these products is summarized below:

Acrylics

Propylene is a key raw material for producing acrylonitrile, which is created by reacting propylene with ammonia and oxygen in the presence of catalysts. Acrylonitrile is then polymerized to form polyacrylonitrile (PAN), the primary component of acrylic fibres used in textiles and carpets. Additionally, propylene can be oxidized to produce acrylic acid, which is used to manufacture polyacrylate resins for adhesives and surface coatings.123

Carpets

Propylene is used in carpets through two primary methods:
* Polypropylene Fibres: Propylene is polymerized into polypropylene, a resin that is melt-spun into fibres. These fibres are widely used in indoor-outdoor carpets due to their toughness, resilience, and water resistance.45
* Acrylic Fibres: As noted above, acrylic fibres derived from propylene-based acrylonitrile are also commonly used in carpets, where they serve as a soft, flexible, and cost-effective replacement for wool.12

Epoxy Glue

While propylene is used to make propylene oxide, which can be further processed into various chemical products, the most common epoxy resins used for adhesives are typically formed from the reaction of epichlorohydrin and bisphenol A.67