| 摘要 |
<p>Disclosed in the present invention are a fibreglass, the preparation method therefor and a fibreglass composite. The fibreglass has a nominal diameter in a range of 3 micrometers to 15 micrometers. The deviation value of the fibreglass diameter is in a range of ±15% of the nominal diameter. In the fibreglass, by weight percent, the content of aluminium oxide is 20%-33%; the content of silicon oxide is 4.11 - 5.48 times the content of calcium oxide; and the content of calcium oxide is 0.9 -2.1 times the content of magnesium oxide. Since this fibreglass can produce a new product nature having the performance of an eutectoid of aluminium, silicon, calcium, and magnesium under the condition containing a high content of aluminium oxide (the content thereof is 20%-33% or 23%-33% or 25%-33%), the fibreglass can overcome difficulties in the prior art caused by a high content of aluminium increasing the viscosity of glass, namely inability to control melting and the bubble quality; the fibreglass has also can lead to the technical effect of both significant energy saving with consumption reduction, and reduction of carbon emission and also has a relatively low devitrification temperature which facilitates production in a large amount, and yet no pollutant emission of boron poison gas to the environment occurs during the production.</p> |
