Polyethylene Oxide MW 8,000,000 (PEO 8M, CAS 25322-68-3) is linear ultra-high molecular weight water-soluble polyether polymer. Used as retention aid in papermaking process, stretched long molecular chains bridge pulp fibers, fines and mineral fillers to form stable flocs. It significantly improves retention rate of tiny fiber and fillers, accelerates web drainage, reduces white water turbidity and lowers raw material consumption. It is premium retention polymer suitable for various mechanical p

Product Detail

Product Overview

Polyethylene Oxide MW 8,000,000 (CAS 25322-68-3) is top-grade ultra-high viscosity PEO specially designed for papermaking retention systems. Conventional medium MW PEO cannot achieve ideal trapping effect on ultrafine pulp particles; extra high molecular weight materials may cause excessive solution viscosity and hard on-site dilution. This 8M grade balances particle bridging ability, solution fluidity and retention efficiency.

After being dissolved and added into pulp slurry, polymer chains capture fine fibers and inorganic fillers. Stable flocculation improves formation uniformity of paper sheet, enhances wire dewatering efficiency and facilitates white water recycling in paper mills.

Key Features

Molecular Weight: 8,000,000, CAS 25322-68-3, white free-flowing fine powder
Ultra-long molecular chain, powerful bridging effect for pulp fines and fillers
Greatly improve retention rate of tiny fiber, reduce fiber loss in white water
Accelerate drainage speed, increase paper machine operating speed
Improve paper formation uniformity and surface smoothness
Nonionic property, stable performance in acid, neutral papermaking processes
Low adding dosage, less influence on paper physical indexes

Main Applications

Retention and drainage aid for tissue paper, cultural printing paper
Functional additive for kraft packaging paper and cardboard pulp system
Fines trapping polymer for mechanical pulp and recycled waste paper pulp
Flocculation agent for papermaking white water solid-liquid separation

Usage Guidance

Slowly disperse PEO powder into continuously agitated clean water to avoid agglomeration and fish-eye particles. Prepare dilute stock solution before dosing into pulp pipeline. Usual addition range: 0.005% ~ 0.04% based on absolute dry pulp. Optimize dosage according to pulp type, beating degree and machine speed. Complete laboratory retention test before formal mass application.

Storage & Package

Seal packages tightly. Store in cool, dry and ventilated warehouse. Keep away from moisture, high temperature and direct sunlight. Standard package: 25kg kraft paper bag with inner PE liner. Shelf life: 12 months under proper sealed storage.

Service Support

Test samples available for papermaking lab evaluation. Stable bulk supply. We provide technical support for pulp retention system formulation. Welcome to inquire TDS, COA and factory quotation.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.