Formula and production technology used for preparing A grade non-combustible thermal insulation boards from cement polyphenyl particles

A polystyrene particle and production process technology, applied in the field of cement board production, can solve the problems of general compressive strength and tensile strength, high brittleness, poor mechanical properties, etc., and achieve outstanding compressive strength and tensile strength, compressive strength Increased strength and tensile strength, and ease of production process

Pending Publication Date: 2019-08-23
北京华金盛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foamed cement board is a kind of external wall insulation material that is gradually emerging at present. It is not easy to age, has the same life as the building, light bulk density, low thermal conductivity, and the fire resistance limit is more than 3 hours. Poisonous gas and other advantages, but the disadvantages of the foamed cement version are also obvious, that is, poor mechanical properties, low strength, high brittleness, very easy to break and damage, which brings great inconvenience to the transportation and construction process
[0004] At the same time, in the production process of inorganic material plates in the prior art, due to the limitation of its production materials, streamlined production cannot be realized, its compressive strength and tensile strength are average, and the production process is cumbersome

Method used

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  • Formula and production technology used for preparing A grade non-combustible thermal insulation boards from cement polyphenyl particles
  • Formula and production technology used for preparing A grade non-combustible thermal insulation boards from cement polyphenyl particles
  • Formula and production technology used for preparing A grade non-combustible thermal insulation boards from cement polyphenyl particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The formula of this example can be used to make lightweight insulation boards; the original proportions are: 34kg tap water, 3kg water-enhancing agent, 4kg special cellulose for insulation board, 0.3kg expansion agent, 100kg ordinary portland cement, 2 cubic polystyrene particles , Among them, the polystyrene particles are 8kg / cubic.

[0033] In this embodiment, the temperature of the tap water is 0-70°C;

[0034] In this embodiment, the water-enhancing agent adopts waterproof emulsion, Tianjin World Sanwei Chemical Trading Co., Ltd.;

[0035] In this embodiment, the special cellulose for insulation boards is produced from Shijiazhuang Runbo Cellulose Factory;

[0036] In this embodiment, the expansion agent is modified cellulose, 0.3 kg is dissolved in 8 kg of 70° hot water, and the modified cellulose is produced in Shijiazhuang Runbo Cellulose Factory;

[0037] In this embodiment, the model of ordinary Portland cement is 525# or 425#.

[0038] The above-mentioned raw materials ...

Embodiment 2

[0040] The formula of this example can be used to make Class A non-combustible insulation board; its original proportions are: tap water 40kg, water increase agent 2kg, insulation board special cellulose 4kg, expansion agent 0.3kg, ordinary portland cement 120kg, 1.5 cubic polystyrene Particles, of which polystyrene particles are 8kg / cubic.

[0041] In this embodiment, the temperature of the tap water is 0-70 degrees;

[0042] In this embodiment, the water-enhancing agent adopts waterproof emulsion, Tianjin World Sanwei Chemical Trading Co., Ltd.;

[0043] In this embodiment, the special cellulose for insulation boards is produced from Shijiazhuang Runbo Cellulose Factory;

[0044] In this embodiment, the expansion agent is modified cellulose, 0.3 kg is dissolved in 8 kg of 70° hot water, and the modified cellulose is produced in Shijiazhuang Runbo Cellulose Factory;

[0045] In this embodiment, the model of ordinary Portland cement is 525# or 425#.

[0046] Mix the above-mentioned raw ...

Embodiment 3

[0048] The formula of this example can be used to make Class A non-combustible insulation board; its original proportions are: tap water 56-60kg, water reducing agent 1-2kg, early strength agent 1-2kg, redispersible latex powder 2-6kg, ordinary silicic acid 150kg of cement, 1.6 cubic polystyrene particles, of which the polystyrene particles are 8-12kg / cubic.

[0049] In this embodiment, the temperature of tap water is 4-70 degrees.

[0050] Start mixing and sequentially add the above-mentioned raw materials, blanking to discharging for 15 minutes, the finished cement polystyrene particle board has a dry density of 175-190kg / cubic, fireproof grade A 2, compressive strength 0.4-0.5MPa, tensile strength Strength> 0.1 MPa, water absorption <10%, thermal conductivity of 0.045-0.069.

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Abstract

The invention relates to a formula and production technology used for preparing A grade non-combustible thermal insulation boards from cement polyphenyl particles. The production technology comprisesfollowing steps: a polyphenyl board particle board raw material is prepared at a preset ratio, and a stirring machine is used for stirring; after stirring, the raw material is introduced into a material cabin for another time of stirring, and the raw material is introduced into lower mould boxes; the mould boxes are conveyed on a guide rail, and are sealed with cover plates using a capping mechanism; the mould boxes are conveyed on the guide rail continuously, and the cover plates are pressed downward for a certain distance using a cover pressing mechanism for compaction of the raw material; after a certain period of time, the mould boxes are subjected box opening demoulding so as to obtain the cement polyphenyl particle boards. The cement polyphenyl particle boards prepared using the cement polyphenyl particle board production equipment and the technology possess excellent thermal insulation performance and flame resistance; and the compressive strength and the tensile strength are increased greatly.

Description

Technical field [0001] The invention relates to the technical field of cement board production, in particular to a formula and a production process for producing Class A non-combustible thermal insulation boards from cement polyphenyl particles. Background technique [0002] At present, the inorganic material boards on the market mainly include asbestos cement board, GRC board, fiber reinforced calcium silicate board, glass magnesium board (glass fiber reinforced magnesium oxychloride cement board) and so on. The common problems of these plates are low strength and poor durability, which greatly limits their application in basements, underground passages and tunnels. In order to make up for this shortcoming, most of the above-mentioned board processing methods are now used, which is complicated in process, high in cost, and high in energy consumption. Virtually increased costs. [0003] The implementation of building energy saving policies promoted the development of wall insulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B111/28C04B111/40
CPCC04B28/04C04B28/06C04B2111/40C04B2201/32C04B2201/50C04B2201/20C04B2111/28C04B2103/65C04B24/383C04B16/08
Inventor 陈述华
Owner 北京华金盛科技有限公司
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