The purpose of this invention is to provide a kind of material of construction-magnesial decorative plate that replaces colorful terrazzo, it can overcome above-mentioned deficiency effectively.
Technical scheme of the present invention is:
(1) it is made up of surface layer and nexine, and its proportioning is:
(1.1) surface layer
Magnesium powder: silica powder (or talcum powder): blending agents=1: 0.5: 0.9-1.1
Wherein:
(1.1.1) concentration of surface layer blending agents is 27 ° of Be-31 ° of Be
Or proportion is 1.23-1.27
(1.2) nexine
Magnesium powder: flyash (or sandstone): blending agents=1: 2-3: 0.7-1.3.
Wherein:
(1.2.1) concentration of nexine blending agents is 18 ° of Be-24 ° of Be
Or proportion is 1.14-1.20
(1.3) surface layer: nexine=2: 15
(2) making method
(2.1) preparation of capstock:
Earlier quantitative magnesium powder is added fully stir in the quantitative blending agents after, add silica powder or talcum powder, continue to stir, shakeout in the mould of packing into.
(2.2) preparation of nexine material:
Earlier quantitative magnesium powder is added fully stir in the quantitative mixture after, add flyash or sandstone.
(2.3) the nexine material is packed in the mould of capstock, treat five, six hours after, the demoulding forms.
The present invention compared with prior art, advantage such as it is simple to have a processing unit, and cost is low, and light is wear-resisting, after adding pigment, lovely luster, attractive in appearance.
Provide an embodiment below
Capstock: magnesium powder: 10Kg
Blending agents: 9Kg, concentration is 29 ° of Be
Silica powder: 5Kg
Pigment: 0.7Kg
Nexine material: magnesium powder: 100Kg
Blending agents: 80Kg, concentration is 18 ° of Be
According to " (2) making method " described step above, promptly can be made into.