Calcium carbonate is the most widely used mineral filler in PVC wire and cable compounds. It appears in both insulation and sheathing, where it cuts material cost, improves dimensional stability, and adds flame retardancy. The main choice for a compounder is simple: use uncoated calcium carbonate, or pay a little more for a coated, surface-treated […]
Coated vs Uncoated Calcium Carbonate: Which Is Better in Cable? Read More »
A biodegradable film can fail from a single coarse calcium carbonate particle. That is why two powders with the same D50 can perform completely differently in a PLA or PBAT film line. Calcium carbonate is the filler most degradable packaging makers reach for first, and for a simple reason: it cuts cost without breaking the
In the carbonation process of light calcium carbonate (PCC), crystal nucleation and particle collision aggregation are constrained by reaction kinetics and medium conditions, often resulting in oversized particles, wide distribution, and severe agglomeration—issues that significantly limit the application of PCC in high-value industries.This article presents two effective methods—ultrasonic dispersion technology and surfactant modification. They have
2 Proven Methods to Precisely Control Particle Size in Light Calcium Carbonate Read More »
The calcium carbonate coating process is the key to transforming ordinary inorganic fillers into functional additives. In this way, it can improve polymer composite performance. Raw calcium carbonate powder has poor compatibility with organic matrices, which causes weak interfacial bonding and limits mechanical properties. Surface coating solves this by modifying the particle surface chemistry, making
Understanding Calcium Carbonate Coating Process: A Complete Technical Guide Read More »
A mineral processing company in Tanzania had high-quality marble deposits. They wanted to sell coated calcium carbonate powder to plastic, paint, and construction material manufacturer. But they had a problem. Their old coating equipment could not keep up. Output was too low. Coating quality was inconsistent. Many particles were left uncoated. So they needed a
How a Calcium Carbonate Plant Using A Pin Mill Coating System Read More »
A growing number of 3D printing customers ask the same question: can we engineer a matte, orange-peel-like texture on PETG prints — and can calcium carbonate powder help us get there? The answer is yes, but the science behind it is richer than it first appears. This article explores how surface gloss in PETG (a polymer
Modified calcium carbonate has evolved from a simple filler into an essential functional additive across the plastics and rubber industries. From PVC pipes and PE agricultural films to automotive bumpers and electronic enclosures, surface‑modified, composite‑modified, and nano‑modified calcium carbonate grades deliver precisely tailored performance at a fraction of the cost of virgin polymers. But formulation
Unmodified calcium carbonate has a hydrophilic surface. Plastics, rubber, and cable compounds are hydrophobic. Put an unmodified CaCO3 filler into a polymer matrix and the two materials resist each other: poor dispersion, reduced tensile strength, weak interfacial adhesion between filler and matrix. The compound performs worse than unfilled polymer in several critical properties. Surface modification
Calcium carbonate (CaCO₃) is one of the most widely used inorganic non-metallic minerals in the world. Abundant, low-cost, chemically stable, and non-toxic, it has served as a functional filler in plastics, papermaking, coatings, rubber, and construction materials for decades. Yet in its ordinary ground form, conventional calcium carbonate has well-known limitations. They’re poor dispersion in
Inorganic particles offer a range of benefits including non-toxicity, excellent dimensional stability, high-temperature resistance, and large specific surface area. These properties help enhance the thermal stability, mechanical performance, and electrical conductivity of flame retardants while reducing water absorption. As a commonly used filler in polymer modification, calcium carbonate has lots of advantages. They include rigidity,
