Ground Calcium Carbonate

GCC in rubber is used an extender in order to improve the rheology and the processability of the compounds and to reduce the cost of the formulation. One of the prominent deficiencies of calcium carbonates is the lack of reinforcement. It is normal, therefore, for calcium carbonates to be used in combination with other reinforcing or semi-reinforcing fillers in order to obtain the most cost-effective overall performance. Almost every sector of the rubber industry utilizes the cost effectiveness of this mineral.

The basic behavior, and hence reason for selection of Calcium Carbonate, in elastomers is primarily influenced by its source (color), particle size and manufacturing route. When these are taken into consideration by the formulator, the mineral is able to provide a large number of significant technical benefits to the industry in addition to its conventional role of cost reduction. These benefits include low moisture, high thermal conductivity, low hardness and modulus, low permanent set and easy processing. These make calcium carbonate an essential ingredient to the financial viability of the rubber industry.

Advantages of Ground calcium carbonate (GCC)

GCC is cheaper and it has high brightness.

GCC creates a porous surface on the paper sheet due to its rhombohedral particle shape.

GCC is hydrophobic as a result it is liberate water more rapidly.

Improve printability

Lower binder demand

Disadvantages of Ground calcium carbonate (GCC)

The rough particle shape of GCC creates a problem; it is more abrasive and shortens the life of paper machine clothes.

Precipitated calcium carbonate (PCC)

Precipitated calcium carbonate is the form of CaCO3 which is manufactured by chemical reactions and the process is known as carbonation process. PCC improve the drawback of GCC, it is provide better gloss and opacity properties for the paper. Because of the structure of PCC is different from the structure of GCC. The crystal structure of PCC are needle-shaped, rhombohedral(cubic), scalenohedral (triangular) and prismatic. The brightness of PCC is 90-97%.

Advantages Precipitated calcium carbonate (PCC)

Increase machine speed and productivity.

Improve water drainage

Improve machine runnability

Improve print quality

Cost-effective papermaking process

Increased opacity and brightness

PCC is less abrasive than GCC

Reduce fiber consumption compared with GCC or talc

More retention compare than other paper fillers

Disadvantages Precipitated calcium carbonate (PCC)

PCC containing paper sheets are poorer formation than GCC containing paper sheets.

Established in 1984 , Huu Nghi Production - Trading Joint Stock company is a leading global producer of industrial minerals, mainly fillers and pigments derived from calcium carbonate, also in Welding Electrode and building construction. We have distributors and offices all over Vietnam and other countries such as Korea, India, China, Japan, Russia, Bangladesh...

The company‘s major markets are the paper, plastics, paint/coatings/adhesives industries as well as construction, environment, agriculture, food and cosmetic.

Experiences of producion

Managers and leader is high degree

Staff is trained carefully.

Each all of day, we consider to chose best mine, then clear, break, grill through many equipments to give best CaCO3 for you.

Our contact:

Saleman: Ms Giang

 Mobile: +84-1646508327

We - Huu Nghi JSC is a Vietnam based supplier of ground Calcium Carbonate. Huu Nghi is a company with a refreshingly innovative mix of state of the art machinery and a qualified team that serves a heterogeneous mix of clientele from all over the region. 

We are committed to providing their customers with quality products that are delivered on time. Therefore, our company established itself as premium provider of superior calcium carbonate products from a wide range of finesses ranging from 5 microns all the way up to 50 microns, and bigger grain sizes for special market segments such as oilfield supply.