Fluorescent Brightener Optical Brightener Ob-1 for Polyester Fiber Whitener

• CAS No.: 1533-45-5
• Formula: C28h18n2o2
• EINECS: 216-245-3
• Certification: REACH
• Environmental Protection: Yes
• Color: Yellow
• Model NO.: Optical Brightener OB-1
• Kind: Fluorescent Brightener
• Appearance: Powder
• Purity: Above 99%
• Melting Point: 360~380 Temperature
• Volatile: Under 0.5%
• Applications: Brightening Products of Synthetic Fiber, Plastic
• Properties: Colors Appear More Brilliant
• Properties 1: Environmentally Friendly
• Dosage: Used in The Amount of 0.02-0.05%
• Transport Package: 25/30kg Per Fiber Drum with PE Liner
• Specification: 20kg per carton
• Trademark: CHANGSHA ZHONGYI
• Origin: Hunan China
• HS Code: 32042000

Product Description

 

Product Name	Optical brightener OB-1(C.I. 393)
CAS No.	1533-45-5
EINECS No.	216-245-3
Other Name	4,4'-Bis(2-benzoxazolyl)stilbene
MF	C28H18N2O2
Appearance	Bright yellow / green crystalline powder
Purity	≥99%
Melting point	360~380 °C
Volatile:	<0.5%
Package	20kg per carton, 25/30kg per fiber drum with PE liner, or as per the customers' requirements.
Applications:  brightening the products of synthetic fiber and plastics
Properties:  •     Colors appear more brilliant •     Environmentally friendly •     Excellent brightening ability •     Produce a bluish tinge, masking yellowness •     Whiter-than-white appearance.
Dosage: Optical brightener OB-1 is commonly used in the amount of 0.02-0.05%, that is, each 100kg of the materials, the optical brightener OB-1 takes 20g-50g or can be adjusted according to the requirements of the product or test.

 

Application solution of sulfur-containing silane coupling agent

Sulfur containing silane series products include a variety of multifunctional silane coupling agents that have been successfully used in the rubber and plastic industry. Its application can improve the physical and mechanical properties of rubber, significantly improve the tensile strength, tear strength, wear resistance and other properties of rubber, reduce permanent deformation, reduce the viscosity of rubber and improve the processing performance. It is especially suitable for vulcanized rubber systems with silica or silicate as reinforcing agent. Its applicable fillers include silica, talc powder, clay, mica powder, clay, etc., and applicable polymers include NR, IR, SBR, Br, NBR, EPDM, etc.
Application case:
• applied to tires and cots: it can improve wear resistance, reduce hysteresis, enhance modulus, maximize bonding performance, improve processing performance, tread wear resistance, thermal cracking, bonding performance of carcass and filler, and bonding performance of tire buffer layer.
• apply to footwear: improve wear resistance, cutting resistance and pressure resistance, and improve flexibility.
• apply to roller: improve wear resistance, anti-aging performance, bearing capacity, improve processing performance, and reduce water absorption and hysteresis.
• applied to mechanical casting products: enhance modulus and thermal aging performance, improve dynamic performance, and reduce the expansibility to viscous solvents.
• apply to rubber hose: improve the wear resistance of the appearance, enhance the modulus, thermal aging performance and the adhesion between reinforcements.
• application in flat tape: improve wear resistance, improve vulcanization reversion resistance, reduce the cost of replacing carbon black with clay, improve the adhesion of tire cord fabric, and enhance the flexural life and modulus.
• applied to V-belt: enhance modulus, improve wear resistance, increase flex life, and improve the bonding performance of reinforcement materials.

Applications

                                                                                                                                                                                                                                             

Why Choose Us

Factory Scale                 

Changsha Zhongyi Chemical Co., Ltd. is a chemical additives company specializing in serving the fields of rubber, plastics and so on. The company is mainly engaged in TGIC curing agent; Gm3701, Si69, 171, 172, 550, 560, 570 and other silane coupling agents; BIPB, DCP, dhbp, tmch335 crosslinking agent; BPO, TbpB initiator and other peroxide series products; TAIC, TAC, TMPTMA vulcanization accelerators, antioxidants, TEP expanded microspheres, synergists, TBC flame retardants, SC sodium cyanate pharmaceutical intermediates, essence, polymer enhancers, foaming agents, plasticizers, fluorescent brighteners, solid degradation agents, UV irradiation crosslinkers and other products. Its products have passed IS09001 (2015) international quality system certification and ISO14001 (2015) international environmental management system certification. The products are mainly used in: CPE EPDM wires and cables, automotive rubber parts, EVA soles, floor mats and other sports materials, solar photovoltaic cell packaging films, thermoplastic plastics and resins, flame retardant textiles, flame retardant PP, flame retardant XPS, EPS, rubber conveyor belts, polymer material modification, pharmaceutical and pesticide intermediates, glass fibers, paint coatings, steel heat treatment, mining gold extraction and other fields.
The company will follow the policy of "professionalism, pragmatism, innovation, high quality and efficiency", seize opportunities, meet challenges and make new contributions to accelerating the development of China's chemical industry! Our aim is to serve our customers with professional standards, excellent product quality and considerate and perfect service.
The company pursues development through science and technology, survival through quality, and satisfaction through professional services. We are willing to work with colleagues in chemical industry and people of insight from all walks of life for common development and hand in hand; Always take "honesty and trustworthiness, quality assurance, customer first, high-quality service" as the goal, and realize "win-win interests, seek common development, and keep pace with the times" with merchants as its own responsibility, and make greater contributions to the country's economic take-off!

Stable Supply   

 
                                                                                                                                                                                                                                             

Quality Assurance

Professional Team