Non-combustible composite expanded polystyrene heat preservation plate and pressing method thereof

A polystyrene and thermal insulation board technology, applied in the field of building materials, can solve the problems of not being able to form a good negative pressure, not being able to absorb the board, and not being able to automate, so as to facilitate rapid pressing and forming, and improve the horizontal and vertical The release amount and the effect of improving the pressing effect

CN109437788AActive Publication Date: 2019-03-08成都固迪新型建材有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-08

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Abstract

The invention relates to the field of building materials, and provides a non-combustible composite expanded polystyrene heat preservation plate and a pressing method thereof. The pressing method of the non-combustible composite expanded polystyrene heat preservation plate comprises the following steps: uniformly mixing raw materials, carrying out mold pressing for at least three times, and forminga plate shape. According to the pressing method disclosed by the invention, through repeated mold pressing, gaps among particles are reduced, and the air is less; the prepared non-combustible composite expanded polystyrene heat preservation plate is good in properties of compression resistance, bending resistance and tensile resistance, better in fireproofness and lower in heat conduction coefficient; better negative pressure can be formed between the sucking disc and the finished product, and automatic production is facilitated.
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Description

technical field

[0001] The invention relates to the field of building materials, in particular to a non-combustible composite expanded polystyrene insulation board and a pressing method thereof. Background technique

[0002] Polystyrene insulation board is a foam insulation board made of polystyrene resin. It is mainly used for building wall, roof insulation, composite board insulation, cold storage, air conditioning, vehicle, ship insulation, floor heating, decoration and carving, etc. The polystyrene insulation board in the prior art is formed into a block blank through one-time compression molding. Stacks of blanks are placed at room temperature. When stacking, spacers are used to separate the blanks for ventilation. After solidification, the blank has a certain strength. But the suction cup of the polystyrene insulation board in the prior art and finished product can't form good negative pressure, can only manually sort, the suction cup can't suck up the plate after ...

Examples

Embodiment 1

[0033] This embodiment provides a method for pressing a non-combustible composite expanded polystyrene insulation board, which includes:

[0034] The raw materials include 32kg of modified polystyrene material, 20kg of the first cement and 265kg of pretreated cement slurry, wherein the modified polystyrene material is obtained by mixing the following raw materials: 12 parts of polystyrene foam particles, 20 parts of emulsion interface agent parts; the solid content of the emulsion interface agent is 20%. The first cement includes 100% of special cement by mass percentage; the pretreated cement slurry includes 130 parts of second cement, 15 parts of saw powder, 15 parts of coal ash, 5 parts of dispersible rubber powder and 100 parts of water by weight; Wherein, the second cement includes 25% of special cement and 75% of ordinary cement by mass percentage.

[0035] First mix the modified polystyrene material with the first cement, and then mix it with the pre-treated cement slu...

Embodiment 2-5

[0037] Embodiment 2-5 provides a kind of pressing method of noncombustible composite expanded polystyrene insulation board, and its component is identical with embodiment 1, difference is:

Embodiment 2

[0038] In Example 2, after three times of molding, the initial thickness of the raw material is 890 mm, and after three times of molding, the thickness becomes 770 mm, 700 mm, and 610 mm in turn. The interval time is 1s and 3s in turn, and then use the self-locking device with a limit of 620mm to lock, lock to 620mm, and let it stand for 16 hours before demoulding.