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HPMC E 50

EipponCellHPMC E 50 Hydroxypropyl methylcellulose is a prominent type of dispersant used in the polyvinyl chloride (PVC) industry. It is utilized during the suspension polymerization of vinyl chloride to effectively reduce the interfacial tension between vinyl chloride monomer (VCM) and water. This reduction in tension helps to uniformly and stably disperse the VCM within the water medium. Additionally, it aids in preventing the merging of VCM droplets at the onset of the polymerization process and inhibits coalescence between polymer particles in the intermediate and later stages. In the suspension polymerization system, EipponCellHPMC E 50 Hydroxypropyl methylcellulose serves a dual purpose of dispersion and stability protection.

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Specification of HPMC E 50

HPMC E 50

Hydroxypropyl Methyl Cellulose (HPMC)

Physical Analysis
Appearance White to slightly off-white fibrous or granular powder.
Identification A to E Conform
Solution appearance Conform
Methoxy 28.0-30.0%
Hydroxypropoxy 7.0-12.0%
Loss on drying 5.0% Max
Residue on ignition 1.5% Max
pH 5.0-8.0
Apparent viscosity 40-60cps
Particle size Min. 98% pass through 100 mesh
Heavy Metals
Heavy Metal ≤10ppm
Arsenic ≤3ppm
Lead ≤3ppm
Mercury ≤1ppm
Cadmium ≤1ppm

Application of HPMC E 50

EipponCell HPMC E 50 is extensively employed in PVC suspension polymerization, where the dispersion system has a direct impact on the quality of the resulting PVC resin, as well as its processing and final products. By incorporating EipponCell HPMC E 50, the thermal stability of the resin can be enhanced, and the particle size distribution can be controlled, thus allowing for the adjustment of PVC density. The optimal amount of HPMC used is typically around 0.025% to 0.03% of the PVC output. When high-quality HPMC is utilized in the preparation of PVC resin, it ensures that the performance of the resin meets international standards. Furthermore, it imparts favorable physical properties, excellent particle characteristics, and exceptional melt rheological behavior to the PVC resin.

Documents of HPMC E 50

Recommended HPMC for Detergent

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Address

 Mayu Chemical Industry Park, Jinzhou City, Hebei, China

E-mail

sales@yibangchemical.com

Tel/Whatsapp

+86-311-8444 2166
+86 13785166166 (Whatsapp/Wechat)
+86 18631151166 (Whatsapp/Wechat)


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