Surface Modification %

2 Proven Methods to Precisely Control Particle Size in Light Calcium Carbonate

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 […]

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Understanding Calcium Carbonate Coating Process: A Complete Technical Guide

By epicpowder

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

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How a Calcium Carbonate Plant Using A Pin Mill Coating System

By epicpowder

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

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How to Achieve an Orange Peel Surface on PETG 3D Prints — The Role of Calcium Carbonate Fillers

By epicpowder

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

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Modified Calcium Carbonate Technologies and High-Performance Powder Coating Equipment for Plastics & Rubber

By epicpowder

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

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Calcium Carbonate Surface Modification with a Pin Mill: Process, Parameters, and What the Numbers Mean

By epicpowder

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

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High-End Calcium Carbonate Powder: Advanced Processing Technologies and Innovative Applications

By epicpowder

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

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Is Calcium Carbonate Really Flame Retardant? The Role of Inorganic Fillers in Fire-Safe Materials

By epicpowder

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,

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Heavy Calcium Carbonate: Grinding, Surface Modification Technologies, and Equipment

By epicpowder

Heavy calcium carbonate (GCC) is a powdered calcium carbonate material produced by mechanically grinding raw minerals such as calcite, chalk, and marble. It is characterized by its wide availability of raw materials, high whiteness, low oil absorption, good applicability, and low cost. Currently, it is the most extensively used and highest-volume inorganic non-metallic mineral powder

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ultrafine calcium carbonate modification machine

What Are the Best Methods for Ultrafine Calcium Carbonate Modification?

By epicpowder

Ultrafine calcium carbonate refers to calcium carbonate particles with a size of 0.02–0.1 μm. It is a cost-effective nanomaterial with size effect and surface effect.It shows excellent reinforcing ability, transparency, dispersibility, thixotropy, and leveling performance. Especially ultrafine active calcium carbonate, as a functional filler, significantly improves product quality through toughening and reinforcement. As calcium carbonate

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