Description

Starch Polyacrylate CAS NO 9086-70-8 is a high-performance, biodegradable superabsorbent polymer synthesized from natural starch and acrylic acid. This unique copolymer is engineered to combine the exceptional water-absorbing capacity of polyacrylates with the environmental compatibility and renewable nature of starch. It is a critical material for industries requiring sustainable, high-absorption solutions with low environmental impact. Key sectors include personal care, agriculture, water treatment, and advanced material manufacturing.

Application

• Personal Care & Hygiene Products: As a biodegradable and skin-friendly superabsorbent polymer in baby diapers, adult incontinence pads, and feminine hygiene products.
• Agriculture & Horticulture: Used as a soil conditioner and water-retaining agent to improve soil moisture, reduce irrigation frequency, and enhance crop yield in arid regions.
• Wastewater Treatment: Employed as a flocculant and absorbent for heavy metal ions and organic contaminants due to its functional groups and high swelling capacity.
• Medical & Pharmaceutical: In wound dressings and drug delivery systems where controlled moisture absorption and biocompatibility are essential.
• Packaging Materials: Incorporated into films and coatings to create moisture-absorbing and biodegradable packaging for food and sensitive goods.
• Construction Materials: As an additive in cement and concrete to control curing moisture and reduce cracking.

Basic Information

Product Name	Starch Polyacrylate
CAS No.	9086-70-8
Molecular Formula	(C3H4O2)n·(C6H10O5)m
Molecular Weight	Variable (Polymer)
Synonyms	Starch-g-Poly(acrylic acid); Starch Acrylate Graft Copolymer; Poly(acrylic acid)-graft-Starch; Superabsorbent Starch Polymer; SAP (Starch-based); Grafted Starch; Carboxymethyl Starch Acrylate; Hydrogel Starch Polymer
EINECS	Contact for details

Quality Control

Our Starch Polyacrylate is manufactured under a strict quality management system. Each batch undergoes rigorous testing for critical parameters including absorption capacity, residual monomers, particle size distribution, and microbiological purity to ensure consistent performance and safety for its intended applications. Certificates of Analysis (COA) documenting full specifications are available upon request. We can tailor quality standards to meet specific requirements for industrial, agricultural, or personal care grades.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent caking and degradation due to moisture absorption. Store away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Absorption Capacity (0.9% NaCl)	≥ 30 g/g
Moisture Content	≤ 10 %
pH (1% aqueous dispersion)	6.0 - 8.0
Residual Monomer (Acrylic Acid)	≤ 1000 ppm
Particle Size (Passing 60 mesh)	≥ 90 %
Identification (IR)	Conforms to standard
Bulk Density	0.4 - 0.7 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.