Synthesis and application of amphoteric starch graft polymer - ScienceDirect
Anionic starch-graft-polyacrylamide (S-g-PAM) was prepared by alkaline hydrolysis. The hydrolytic agent (mixture of sodium carbonate and sodium hydroxide) was added to starch-graft-polyacrylamide emulsion, the concentration of the hydrolytic
However, it is already known that starch, like many other polysaccharide flocculants, is required in higher dosages for its performance to be comparable to PAM. This study identified the conditions favorable to the use of an activated starch pol
Activated starch as an alternative to polyacrylamide-based polymers for in-line filtration of low turbidity source water | Journal of Water Supply
Polyacrylamide-based polymers are commonly used as coagulant aids in water treatment, but there is some concern about their potential toxicity. This work investigated a novel alternative, Hydrex TM 3841 activated starch polymer, as a coagulant
An anionic high molecular weight polyacrylamide formed 1.5-fold larger aggregates compared with the starch-based polymer tested, but both polymers produced flocs of similar density (relative
Glyoxalated Polyacrylamides G-PAM: additives for enhancing the strength of paper. Giovanna Pellegrini RQ, Axchem® Italia -Stéphan Lafrenière
Summary: Glyoxalated polyacrylamides (G- PAM) provide an alternative chemistry to other papermaking resins additives for wet and dry strength. This new generation of G-PAM provides a better compromise between wet end chemistry performance and
This paper also introduced preliminary work using CST for comparing the dewatering performance of kaolin clay suspensions and oil sand tailing conditioned with anionic starch. The CST for kaolin suspension decreased from 113 s to approximately
Acrylamide copolymers: A review of methods for the determination of concentration and degree of hydrolysis - ScienceDirect
Arryanto and Bark ( 1991 ) extended the method of Hendrickson and Neuman (1984) to anionic, nonionic and cationic polyacrylamides, reduced the analysis time to two hours and improved the sensitivity. The range of the method was reported as 1 to
The intrinsic viscosities of five commercial polyacrylamide-based flocculants were measured as a function of pH, temperature (25–50 °C), and the degree of anionicity of the polymers (from
Paper Strength Improvement by Anionic PAM and Cationic Starch Adsorbed PCC
PCC surface was modified by adsorbing A-PAM (anionic Polyacrylamide) and C-starch (cationic starch) in series at various stirring speeds. It was found that increasing stirring speed during filler
Synthesis, Characterization, and Flocculation Properties of Branched Cationic Polyacrylamide. Weimin Sun,1 Guangcheng Zhang,1 Ling Pan,1 Helin Li,1 and Aihua Shi1. 1Department of Applied Chemistry, School of Science, Northwestern Polytechnical
US5104487A - Papermaking using cationic starch and naturally anionic polysacchride gums
The present invention is directed to a paper having improved properties, a process of producing the paper, and compositions used in the process of producing the paper. The invention generally comprises using a cationic starch in combination
The effect of the cationic starch and anionic polyacrylamide polymer groups in increasing the retention of pigment is further illustrated in the following examples. EXAMPLE NO. 2 Example No. 2 illustrates the preparation of a material at the sta
- What is polyacrylamide (PAM) used for?
- npj Clean Water 1, Article number: 17 ( 2018 ) Cite this article High molecular weight (10 6 –3 × 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
- Why is the polyacrylamide (PAM) market declining?
- North America The Polyacrylamide (PAM) market in North America during the fourth quarter of 2025 witnessed a declining trend, primarily due to reduced demand in key downstream industries such as industrial water treatment and the Oil & Gas Enhanced Oil Recovery (EOR) sector.
- What is high molecular weight polyacrylamide (PAM)?
- Provided by the Springer Nature SharedIt content-sharing initiative High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
- Is polyacrylamide (PAM) a good buy in Asia-Pacific?
- In the Asia-Pacific region, the market of Polyacrylamide (PAM) displayed mixed sentiments during the second quarter of 2025. At the beginning of the quarter, the market of PAM witnessed a decline in price trends.
