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Some of inorganic fillers

Some of inorganic fillers2017.02.20

Fillers can be divided into organic fillers and inorganic fillers. The main purpose of fillers is to reduce the cost of plastic products. Other positive roles include improved products heat resistance, rigidity, hardness, size stability, creep resistance, abrasion resistance, flame retardant, elimination smoke and biodegradability, reduce forming shrinkage and improve the accuracy of products.

Here are some inorganic fillers in OKCHEM such as calcium carbonate, MICA, Kaolin, barium sulfate, Glass beads, clay, etc.

barium sulfate fillers

Because of low price, wide sources, nontoxic odorless, white color, easy colored, low hardness, high chemical stability,and other advantages, calcium carbonate has become the largest and most extensive fillers.

There are many kinds of mica, it has barrier effect to infrared of 7~25um wavelength. The daylight transmittance is higher than other filling materials, so it is most suitable for agriculture greenhouse warming during the day and night moisturizer. MICA commonly used in PVC、PP、PE、ABS and PA with dosage of 10%~40%.

Kaolinite is known as clay. But kaolin used as fillers need to pay special attention to water impact. Ordinary kaolin. Use calcined kaolin to improve the plastic insulation, add 10% calcined kaolin to PVC can improve 5~10 times of electrical insulation; take its advantage of barrier effect on wavelength of 7~25um infrared used for agriculture film thermos agent.

Surface gloss of barium sulphate filled composites is higher than other filling materials. Due to its high density to produce high density plastic products such as speakers, fishing nets and so on; take advantage of its ability to absorb x-rays and y-Ray to manufacture radiation-proof plastic products; used for the sound-absorbing and heat-conducting filler material.

Glass beads is typical lightweight fillers with smooth, spherical, hollow structures surface. Glass beads can be added to PP, PS, ABS, PE and PA. It is used for light-filled, heat insulation, sound insulation, shockproof modified products, as well as for optical products.

Clay is a general term for a class of materials. In addition to Kaolin, there are also Montmorillonite (MMT), attapulgite clay (TA), illite, sepiolite, hydroxyapatite (HA), etc. Such materials are natural Nano-material with good value.

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