1,4-Butanediol (BDO), as a key chemical raw material, has core applications that can be summarized into the following areas:

I. Core Raw Material for Polymer Synthesis

1. ?Engineering Plastic Production?
   • ?PBT Plastic?: One of the five major engineering plastics, used in automotive parts, electronic components, and mechanical equipment manufacturing.
   • ?Polyurethane (PU)?: Synthesizes tires, seals, and artificial leather.
2. ?Elastic Fiber Raw Material?
   • Production of?Tetrahydrofuran (THF)?→ Synthesis of?Polytetramethylene Ether Glycol (PTMEG)?→ Manufacture of highly elastic?Spandex? (used in sportswear, swimwear, etc.).

II. Solvents and Industrial Additives

1. ?High-Efficiency Solvent?
   • Dissolves materials such as PVC and epoxy resins, used in capacitor electrolytes, varnishes, and specialty inks.
2. ?Functional Additives?
   • Electroplating brighteners, textile softeners, adhesives, and lubricants.
3. ?Epoxy Resin Modification?
   • Acts as a cross-linking agent to enhance the strength and wear resistance of coatings (e.g., butanediol diglycidyl ether).

III. Pharmaceuticals and Fine Chemicals

1. ?Pharmaceutical Intermediates?
   • Synthesis of Vitamin B6, anticancer drugs, and hydroepiandrosterone, among others.
2. ?Cosmetic Ingredients?
   • Production of polyvinylpyrrolidone (PVP) series, used as moisturizers, pharmaceutical excipients, and hair styling components.
3. ?Pesticide Synthesis?

   • Preparation of derivative herbicides, insecticides, etc.

Safe Handling Tips

• Industrial-grade products should avoid prolonged skin contact;
• Storage must isolate strong oxidizing agents (prone to oxidation reactions).

?Note?: BDO is produced through processes such as alkyne-aldehyde method and maleic anhydride hydrogenation, with its downstream derivatives covering engineering plastics to high-end daily chemical fields.