Recently, the price of PVC resin has soared to the highest in history. PVC stands for polyvinyl chloride, or PVC (Polyvinyl chloride) in English, which is the initiator of vinyl chloride monomer (VCM) in peroxides, azo compounds and other initiators; or Under the action of light and heat, it is a polymer polymerized according to the mechanism of free radical polymerization. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin. The material is an amorphous material.

1. PVC resin factory include: 

China North Chemical Subsidiary, 

Gansu Yinda Chemical PVC Factory, 

Henan Jiaozuo Hao Hua Yuhang, 

Tianjin Dagu Chemical, 

Qilu Chemical, 

Guangxi Nanning Chemical.

2. PVC resin factory's location: 

The production of calcium carbide PVC raw materials is mainly concentrated in Xinjiang, Ningxia, Inner Mongolia and other provinces with more coal resources, while downstream processing companies are more concentrated in Tianjin, Shandong, Hebei, Zhejiang, Liaoning, etc. Provinces and cities, other central and coastal provinces and cities also have more production enterprises, including Shandong, Tianjin, Jiangsu, Henan, Inner Mongolia, Xinjiang and Sichuan.

As the professional fluorescent brightener manufacturer in China,we suggest fluorescent brightener OB-1 & FP-127 used for PVC resin.The following the the data sheet of OB-1 & FP-127.

Fluorescent brightener OB-1 C.I.393 for PVC resin

Product Name :Optical Brightener OB-1   

Chemical Name :2.2’-(4.4’-diphenol vinyl) dibenzoxazol

CAS No. :1533-45-5

C.I. No.: 393

Molecular Formula: C28H18N2O2

Molecular Weight: 414 

Technical Index Appearance：Yellowish/greenish powder

Molecular weight:414.4    

Melting Point:356℃～360℃

Purity: ≥98.5%     

Fineness: ≧200 mesh

Volatile content: ≦0.5%    

Ash content :≦0.5%

Uses

Mainly be used in whitening of polyester and plastic, as well in

whitening of Nylon during polymerization. 

For whitening of polyester and nylon; also used in ABS, PS,PVC, HIPS, PA, PC, PP, PE,PET,EVA, PVC, etc.    

Rate of use: (per 1000kg of substrate)   Polyester: 75-300g  EVA, PP, nylon: 75-200g

Package 25kg per fiber drum

Fluorescent Brightener FP-127 C.I 378 for resin

Product Name: Fluorescent brightener FP-127

Chemical Name: 1,1'-biphenyl-4,4'-bis-benzoxazole

CAS No. :40470-68-6

C.I. No. :378

Molecular Formula:C30H26O2

Molecular Weight :418

Technical Index :Appearance:slight yellow powder 

Melting Point:219-221°C 

Purity:≥99% 

Maximum UV Spectrum Absorption:359nm

Uses:Mainly be used in whitening of plastics such as PVC,PS,ABS,TPR,etc.