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China factory direct sale,bulk in stock! Hot sale in european market,gurantee safe delivery! free of customs clearance!

China factory direct sale,bulk in stock! Hot sale in european market,gurantee safe delivery! free of customs clearance!

As an important organic and fine chemical raw material, 1,4-Butanediol used for the fields of medicine, chemical industry, textile, papermaking, automobile and daily chemical industry. 1,4-Butanediol(BDO) application as below：

 Thermoplastic Polyesters

 1,4-Butanediol(BDO) used to manufacture polybutylene terephthalate (PBT).

PBT s high strength, excellent thermal stability and good durability lead to its many uses in the automotive, electrical and appliance industries. PBT is also compatible with several other thermoplastics which enables a compounder to tailor a polymer alloy to an end user’s specifications.

 1,4-Butanediol(BDO) is a key component of thermoplastic copolyester elastomers. These elastomers rely upon  1,4-Butanediol(BDO) to provide crystallinity which in turn provides elasticity and resilience to these terephthalate-based polyesters.

 Polyesters

In polyurethane applications,  1,4-Butanediol(BDO) is primarily used as a component of polyesters or as a chain extender. For example, polyesters such as poly (butylene adipate) diols are formulated into urethane elastomers with excellent oil, chemical and UV resistance. In addition, these materials have good mechanical properties over a broad temperature range, as well as good flex and abrasion resistance.

As a chain extender with MDI systems,  1,4-Butanediol(BDO) provides a good balance between hardness and low temperature flexibility. On comparison to other diols,  1,4-Butanediol(BDO) combines the best attributes of hydroxyl reactivity, linearity and overall system compatibility to build in the proper crystallinity required in the polyurethane hard segment. Also, the  1,4-Butanediol(BDO)/MDI systems provide a lower exposure hazard than MOCA/TDI systems.

 1,4-Butanediol(BDO) used as a chain extender for thermoplastic urethane elastomers.  1,4-Butanediol(BDO) yields crystalline urethane domains which readily melt and flow at elevated temperatures but phase separate at ambient temperatures in order to yield tough elastomeric networks.

Cast urethane elastomers continue to be a major end use of 1,4-Butanediol(BDO) because of overall consistency and reliability.

Current applications of 1,4-Butanediol(BDO)-based urethane elastomers include automotive front and rear end fascia, bumpers, fenders and spoilers. Non-automotive applications include footwear, electrical enclosures, recreation equipment, appliances and furniture.

Urethane RIM elastomers using 1,4-Butanediol(BDO) allow design freedom and parts consolidation with large, complex shapes.

Polyester Plasticizers

 1,4-Butanediol(BDO)-based polyester plasticizers impart superior compatibility with vinyl polymers while providing non-migrating characteristics. In addition, polyesters based upon  1,4-Butanediol(BDO) have excellent oxidation resistance and good low temperature flexibility.

Copolyester Hot Melt and Solvent borne Adhesives

 1,4-Butanediol(BDO) is a key component of copolyesters of isophthalic acid and terephthalic acid used in hot melt adhesive applications. 1,4-Butanediol(BDO) yields polyesters with excellent adhesives and cohesive strength.

Derivatives

 1,4-Butanediol(BDO) is the key raw material of several industrially important derivataives, 1,4-Butanediol(BDO) is used industrially as a solvent and in the manufacture of some types of plastics, elastic fibers and polyurethanes. particularly tetrahydrofuran, γ-butyrolactone (GBL), and N-methyl pyrrolidone.

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