Driven by the global "dual carbon" goals and sustainable development strategies, the research and application of bio based chemicals are gradually moving towards industrialization and scale. As a representative product, 1,3-Propanediol (PDO) is becoming a star molecule in the fields of chemical engineering and materials due to its green production path and excellent performance. Starting from bio based raw materials, PDO not only replaces traditional petrochemical processes, but also demonstrates high value-added potential in multiple industries such as polymers, cosmetics, pharmaceuticals, and functional chemicals, promoting industrial chain upgrading and cross-border integration.

1、 Biobased production pathway: a model of green and sustainable development

Traditional PDO mainly relies on petrochemical routes, using petroleum by-products as raw materials, with complex processes, high energy consumption, and accompanied by certain environmental pressures. With the rapid development of biotechnology and synthetic biology, bio fermentation based on renewable resources such as corn sugar and glycerol has gradually become mainstream. This path not only reduces greenhouse gas emissions, but also utilizes agricultural by-products to improve resource utilization efficiency. The optimization of microbial metabolic engineering has continuously improved yield and purity, reduced production costs, and laid a solid foundation for the large-scale application of PDO.

More importantly, the industrialization of bio based PDO is in line with the direction of green chemistry and circular economy, and has outstanding strategic value in the context of global advocacy for "carbon neutrality". It is not only a single chemical, but also the starting point of a green material platform.

2、 Polymer materials: important raw materials for renewable plastics and fibers

In the field of polymer materials, the most well-known use of PDO is as a key monomer for the synthesis of polytrimethylene terephthalate (PTT). Compared with traditional polyester, PTT has excellent elasticity, durability, and dyeability, and is widely used in fibers, carpets, and engineering plastics. Especially in the textile industry, PTT fiber is soft and has a high elastic recovery rate, meeting the dual needs of functionality and comfort.

In addition, PDO can also copolymerize with other dicarboxylic acids or diols to prepare various degradable or high-performance polymers, expanding the category of bio based plastics. For example, the copolymerization of PDO and adipic acid can yield poly (propylene glycol adipate) (PPA), which has potential in packaging and medical fields. With the tightening of environmental regulations and the upgrading of consumption, the market prospects of PDO in the polymer field are becoming increasingly broad.

3、 Cosmetics and Personal Care: Natural and Safe Multi functional Ingredients

In addition to polymers, the application of PDO in the field of daily chemical products is also impressive. As a safe and low irritant solvent and moisturizer, bio based PDO has gradually become a star ingredient in skincare and personal care products. It can not only replace traditional propylene glycol and butanediol, but also has the advantages of improving formula stability and enhancing product skin feel.

With the deeply rooted consumption concepts of "natural" and "sustainable", PDO is widely favored by international cosmetics brands due to its bio based identity and gentle characteristics. For example, in essence solution, lotion and sunscreen, PDO is often used as a multifunctional auxiliary agent, giving consideration to the dissolution, moisturizing and antibacterial synergistic effects, so as to bring better consumer experience to products. Its combination of green sources and efficacy enables it to quickly penetrate the high-end skincare market.

4、 Pharmaceuticals and Functional Chemicals: Deep Expansion of High Value Added Products

The potential of PDO is constantly being explored in the fields of medicine and fine chemicals. Its excellent biocompatibility and chemical reactivity make it suitable for use as a drug intermediate, polymer drug carrier, and functional additive. For example, PDO derivatives can be used to synthesize some drug precursors or endow polymers with properties such as sustained release and targeting, providing material support for precision medicine and personalized medication.

At the same time, PDO has also demonstrated unique value in functional chemicals. As a highly reactive diol, it can be used to synthesize plasticizers, surfactants, lubricants, etc., providing green solutions for coatings, inks, and cleaning products. With the continuous diversification of downstream demand, PDO is gradually transforming from a single basic chemical to a core raw material for functional products.