Closed hollow bead

2015-10-30 12:53:22

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Introduction

Closed micro bead

Obturator bead is a delicate and unique and stable performance of the non metal hollow particle material and a heat preservation, heat insulation new material. The product can be seen under a microscope to see that it is a tiny hollow transparent sphere. Due to its unique hollow structure and physical and mechanical properties, as a kind of multifunctional filling material can make a variety of industry products to improve the quality, increase the function, reduce the cost, has been hailed as high-tech materials.

 

A basic chemical composition, obturator bead

Component

SiO2

Al2O3

Fe2O3

MgO

CaO

Na2O

K2O

Burning loss

Content

(%)

75.90

12.00

1.30

2.11

Trace

1.50

1.80

Trace

Two, the obturator bead physical index

Index test

Remarks

Particle size(mm

0.02-2.50

 

Capacity(Kg/m3)

100-265

 

Thermal conductivity

(w/m.k)

0.036-0.054

 

Compression ratio(1Mp)

0.50

.

Water absorption rate(%)

50-86

.

Burning loss rate(%)

< 0.5

.

Fire resistance(℃)

1280-1360℃

.

Recommended temperature(℃)

900

.

Three, technical indicators:

Index test

Grain size(mm

0.01-0.2

Bulk density(Kg/m3

200-320

Thermal conductivity(w/m.k

0.047-0.054

Fire resistance

1300-1500℃

Broken beads

5-10%

Use temperature

1200℃以下

Water absorption rate

(Determination of vacuum filtration method%

50

Cylinder pressure strength

(volume loss rate of 1Mpa pressure)

0.2%

Burning loss

2.5

Four, special:

Obturator bead is in minerals as raw materials in 1450 DEG C under the condition of high temperature, after the complex chemical and physical changes, the formation of a honeycomb structure of micro hollow globular substances. Its appearance is white powder with good dispersion of liquidity and heat preservation and heat insulation, sound insulation properties. More with high strength, low water absorption, easy and good characteristics.

Five, application domain and function:

The products can be widely used in refractory materials, heat preservation materials, construction materials, oil field cementing, metallurgy, chemical, thermal power boiler, glass, rubber, plastics, ceramics and other fields. Has a very broad application prospects. 1, the construction industry: light wallboard; light decorative plate, ceiling board, sound-absorbing panels; 2, the insulation industry: internal and external wall insulation mortar, thermal insulation coating; thermal insulation putty; heat pipe heat preservation; 3, refractories industry; lightweight refractory material; industrial furnace insulation; explosive density is adjusted; petroleum and chemical; fire fighting material filter aid.

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