The research on synthesis and spinning technology is carried out with the goal of bio based polyester and bio based polyamide, and good bio based fiber materials are developed and industrialized.

1）R&D direction

Biobased in China1,3-Propylene glycol monomer and biological basePTTOn the basis of the breakthrough in polyester industrialization technology, take advantage of the engineering and technical advantages of China's large capacity development of polyester fiber to develop bio basedPTTPolyester high-quality product technology system, efficient catalysis, thermal stability technology and low temperature five kettle continuous polymerization technology, design and prepare special raw materials for composite spinning, optimize forming process parameters, and develop high-quality low-carbon biological basePTTParalleling the key technologies for the preparation of composite fibers, developing a series of elastic polyester based composite fibers and products, and further improving the application field and quality of composite elastic fibers.

Development of bio basedPDOBased on the new biodegradable polyester systemPTTIntroduction of aliphatic dibasic acid, synthesis of aromatic and aliphatic copolyester materials, preparation ofPTSTandPTATExistingPTTIts basic properties and biodegradability are discussed, and its application in the fiber field is explored to further enrich the biodegradable polyester system in China.

2）R&D progress and achievements

Biological basePTTHigh efficiency catalysis and low temperature continuous polymerization technology, independently developed suitable forPTAAnd1,3-PDOTitanium based polymetallic catalyst for esterification reaction, specifically titanium-tin-Cobalt composite catalytic system; Develop biological basePTTSide by side composite spinning technology, develop functional and differential side by side composite fiber preparation technology and products, with high and low viscosity biological basePTTTwo component composite elastic fiber, biological basePTT/Total extinction regenerationPETTwo component composite elastic fiber, biological basePTT/Regenerated cationic two-component composite elastic fiber, thermal and wet comfort bio based composite fiber.

Biobased in China1,3-Propylene glycol monomer and biological basePTTOn the basis of the breakthrough in polyester industrialization technology, take advantage of the engineering and technical advantages of China's large capacity development of polyester fiber to develop bio basedPTTPolyester high-quality product technology system, efficient catalysis, thermal stability technology and low temperature five kettle continuous polymerization technology, design and prepare special raw materials for composite spinning, optimize forming process parameters, and develop high-quality low-carbon biological basePTTParalleling the key technologies for the preparation of composite fibers, developing a series of elastic polyester based composite fibers and products, and further improving the application field and quality of composite elastic fibers.

The innovation center develops more excellent moisture absorption and perspiration performance, dyeing performance and low elastic modulus (better elasticity)PA56Fabric, used for women's dresses, yoga clothes and other clothing; developmentPLAIt is blended with colored Lyocell yarn, and green degradable spandex is added at the same time; It solves the problem that the polylactic acid fabric is not resistant to high temperature and affects dyeing. At the same time, the fabric has the texture of cotton, and has the characteristics of anti dripping, renewable and degradable, bacteriostatic and comfortable.

Application for invention patent2A High Elastic Moisture Absorption AntistaticPTT/PETComposite fiber and its preparation method "A functional composite fiber with controllable crimp and its preparation method".

3）Medium test certificate

The key technology of large-scale continuous polymerization engineering of bio based polyester was developed and verified in the shareholder Jiangsu Zhongwei Science and Technology Development Co., Ltd., with good product quality, stable production and operation, and significant energy conservation and emission reduction. The project adopts chip spinning composite spinning process route and two-step processing method to produce biological basePET/PTTThe two-component composite elastic fiber belongs to the original process route. Product specifications can be determined according to user needs and market demands.

Complete new biodegradablePTTStudy on small scale synthesis process of materials.