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Papermaking Reinforcing Agent Polyacrylamide for Paper Strength Additive

Polyacrylamide Names and Identifiers
Name:Poly(acrylamide)
Synonyms:PAM
Polyacrylamide
Poly(acrylamide)
Acrylamide resin
anionic polyacrylamide
Cationic Polyacrylamide
Acrylamide gel solution
non-ionic polyacrylamide
Polyacrylamide,hydrolyzed
yacrylamide dry powder,non-ionic
Polyacrylamide dry powder,cationic
CAS:9003-05-8
Polyacrylamide Physico-chemical Properties
Molecular Formula:[CH2CH(CONH2)]n
Molar Mass:71.0785
Density:1.3
Water Solubility:SOLUBLE
Solubility:is a water-soluble polymer
Appearance:White or milk-colored flowable powder
Storage Condition:Room Temprature
Sensitive:Easily absorbing moisture
MDL:MFCD00084392
Physical and Chemical Properties:density 1.3
 
Availability:
Cationic Polyacrylamide
ITEMSOLID CONTENTEFFECTIVE PHBULK DENSITYMOLECULAR WEIGHTCATIONIC DEGREE
C600589% MIN2.0-9.00.75-1.01000-12005%
C60101000-120010%
C60151000-120015%
C60201000-120020%
C60251000-120025%
C60301000-120030%
C60351000-120035%
C60401000-120040%
C60451000-120045%
C60501000-120050%
C60601000-120060%
C60701000-120070%
C60801000-120080%
Anionic Polyacrylamide
ITEMSOLID CONTENTEFFECTIVE PHMOLECULAR WEIGHTANIONIC DEGREE
A200189% MIN2.0-9.09004-5%
A200210001-2%
A2003110030%
A20041600-170011-13%
A20051700-180018-20%
A20061800-190023-25%
A20071400-160027-30%
A20081800-200027-29%
A20093000-350028-35%
A20102500-300025-30%
Emulsion polyacrylamide
ITEMPRODUCTSANIONIC DEGREEREMARKS
EC6001EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 20%OIL BASED
EC6002EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 30%OIL BASED
EC6003EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 40%OIL BASED
EC6004EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 60%OIL BASED
EC6005EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 80%OIL BASED
EC6006EMULSION  CATIONIC POLYACRYLAMIDEANIONIC DEGREE 20%WATER BASTED
EA2001EMULSION  ANIONIC POLYACRYLAMIDEANIONIC DEGREE OIL BASED

The Role of Polyacrylamide as a Paper Strength Additive


1. Retention and Drainage Improvement:

Polyacrylamide (PAM) is widely used as a paper strength additive due to its ability to improve retention and drainage in the papermaking process. By increasing the retention of fibers and fillers, PAM helps to enhance the formation and uniformity of the paper sheet. It also improves drainage, allowing for faster water removal and reducing energy consumption during the drying process.


2. Flocculation and Fiber Bonding:

PAM acts as a flocculant, bringing together fine particles and fibers in the paper stock to form larger aggregates. This flocculation process improves the bonding between the fibers, resulting in enhanced tensile strength, tear resistance, and stiffness of the paper. The larger aggregates formed by PAM contribute to better fiber bonding, leading to improved overall paper strength.


3. Strength Enhancement:

One of the key roles of PAM as a paper strength additive is its ability to enhance the strength properties of the paper. PAM forms hydrogen bonds with the cellulose fibers, increasing their inter-fiber bonding and overall strength. This improved bonding contributes to increased tensile strength, tear resistance, and burst strength of the paper. Additionally, PAM helps to reduce the level of fines and micro-particles in the paper, which can weaken its strength.


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