High-density glass fiber board and production method thereof
A glass fiber board and glass fiber cloth technology, which is applied in the field of high-density glass fiber board and its preparation, can solve the problems of polluting the indoor environment, low flexural strength, and high brittleness of high-density glass wool board, so as to simplify the construction procedure and reduce the engineering cost. The effect of cost and high tensile strength
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Embodiment 1
[0022] (1) Preparation of non-alkali glass fiber blanket: firstly cut 80 parts of non-alkali glass fiber into fixed-length fibers with a length of 50 mm, then open, card, lay and acupuncture to prepare non-alkali glass fiber blanket ;
[0023] The alkali-free glass fiber blanket has a thickness of 8 mm and a bulk density of 80 kg / m3;
[0024] (2) Preparation and modification of binder: take 5 parts of inorganic binder, 0.1 part of thickener, and 0.1 part of water repellent, disperse and emulsify with a high-speed disperser; the speed is 800r / min, and the time is 5min;
[0025] (3) Centrifugal drying: soak 5 parts of non-alkali glass fiber cloth and the non-alkali glass fiber blanket prepared in step (2) in the binder prepared in step (2) for 5 minutes, take it out, and put it in a centrifuge Spin dry in medium; centrifuge speed 800r / min, dehydration time 2 minutes;
[0026] (4) Rolling: Take out the alkali-free glass fiber blanket dehydrated and dried by the centrifuge in st...
Embodiment 2
[0034] (1) Preparation of non-alkali glass fiber blanket: First, 90 parts of non-alkali glass fiber is chopped into fixed-length fibers with a length of 100mm, and then the non-alkali glass fiber blanket is obtained by opening, carding, laying and acupuncture ;
[0035] The alkali-free glass fiber blanket has a thickness of 10 mm and a bulk density of 100 kg / m3;
[0036] (2) Preparation and modification of binder: Take 15 parts of inorganic binder, 0.5 part of thickener, and 0.5 part of water repellent, disperse and emulsify with a high-speed disperser; the speed is 1000r / min, and the time is 10min;
[0037] (3) Centrifugal drying: soak 10 parts of non-alkali glass fiber cloth and the non-alkali glass fiber blanket prepared in step (2) in the binder prepared in step (2) for 10 minutes, take it out, and put it into a centrifuge Drying in medium; centrifuge speed 1000r / min, dehydration time 5 minutes;
[0038] (4) Rolling: Take out the alkali-free glass fiber blanket dehydrate...
Embodiment 3
[0046] (1) Preparation of non-alkali glass fiber blanket: firstly cut 85 parts of non-alkali glass fiber into fixed-length fibers with a length of 80mm, then open, card, lay and acupuncture to prepare non-alkali glass fiber blanket ;
[0047] The alkali-free glass fiber blanket has a thickness of 9 mm and a bulk density of 90 kg / m3;
[0048] (2) Preparation and modification of binder: take 10 parts of inorganic binder, 0.3 parts of thickener, and 0.3 parts of water repellent, disperse and emulsify with a high-speed disperser; the speed is 900r / min, and the time is 8min;
[0049] (3) Centrifugal drying: soak 8 parts of non-alkali glass fiber cloth and the non-alkali glass fiber blanket prepared in step (2) in the binder prepared in step (2) for 8 minutes, take it out, and put it into a centrifuge Spin dry in medium; centrifuge speed 900r / min, dehydration time 3 minutes;
[0050] (4) Rolling: Take out the alkali-free glass fiber blanket dehydrated and dried by the centrifuge i...
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