Polymers in Agricultural Suspension Systems
Polymers play a crucial role in maintaining the stability and efficacy of active ingredients. From suspension concentrates to emulsion-based products, copolymers are used to keep solid particles evenly distributed, ensure smooth application, and reduce environmental impact.
Solid active ingredients in pesticide and fertiliser formulations often tend to settle or clump over time. As noted in studies published in the Journal of Dispersion Science and Technology (Taylor & Francis), polymeric dispersants are essential for long-term formulation stability in suspension concentrates. Acrylic copolymers act as dispersing agents, adsorbing onto particle surfaces and providing steric and/or electrostatic stabilisation. This can help:
- Prevent sedimentation in storage
- Maintain a homogenous mixture for field application
- Reduce the need for vigorous agitation before use
Improving Sprayability and Reducing Downtime
Spray application requires even particle distribution to avoid clogging and maintain coverage. Copolymers enhance spray characteristics by controlling viscosity and droplet formation, reducing nozzle blockage, especially in fine sprays and improving adherence to plant surfaces. The result is more efficient field coverage, better delivery of active ingredients, and reduced downtime from clogged equipment.
Polymers also contribute to reducing environmental impact in agriculture:
- Improved adhesion and retention reduce the need for reapplications
- More efficient actives delivery means lower overall usage
- Lower runoff into water systems
Studies such as those by CABI Agriculture and Bioscience underline the role of formulation efficiency in minimising agrochemical drift and leaching.
Simple Solutions for Low-Viscosity Systems
While advanced polymers offer multifunctionality, basic polymers like Acriflow are commonly used in simpler, low-viscosity suspensions. It can aid in initial dispersion of actives, support short-term stability and flow, and offer a cost-effective solution for basic agricultural needs
Such formulations are ideal for large-volume, lower-margin products where robust performance is needed without high cost.
For more complex needs, Witton also provides toll manufacturing of advanced and niche agrochemical copolymers on behalf of third-party customers. Whether you require controlled-release functionalities, biodegradable matrices or bespoke particle interactions, Witton can manufacture high-performance polymer solutions under strict confidentiality and compliance standards.
Contact us to explore the right copolymer solution for your formulation needs.