CN111285657B - Thermal insulation wall material and manufacturing process thereof - Google Patents

Thermal insulation wall material and manufacturing process thereof Download PDF

Info

Publication number
CN111285657B
CN111285657B CN202010085174.8A CN202010085174A CN111285657B CN 111285657 B CN111285657 B CN 111285657B CN 202010085174 A CN202010085174 A CN 202010085174A CN 111285657 B CN111285657 B CN 111285657B
Authority
CN
China
Prior art keywords
wall material
heat
insulating wall
inorganic
weight ratio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010085174.8A
Other languages
Chinese (zh)
Other versions
CN111285657A (en
Inventor
刘丙强
刘念界
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shengkui Plastic Industry Co ltd
Original Assignee
Shanghai Shengkui Plastic Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Shengkui Plastic Industry Co ltd filed Critical Shanghai Shengkui Plastic Industry Co ltd
Priority to CN202010085174.8A priority Critical patent/CN111285657B/en
Publication of CN111285657A publication Critical patent/CN111285657A/en
Priority to PCT/CN2021/071755 priority patent/WO2021159912A1/en
Priority to KR1020227031391A priority patent/KR20220140595A/en
Priority to JP2022548801A priority patent/JP2023513724A/en
Priority to EP21754016.0A priority patent/EP4105190A4/en
Application granted granted Critical
Publication of CN111285657B publication Critical patent/CN111285657B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a heat-insulating wall material and a manufacturing process thereof, wherein a raw material composition of the heat-insulating wall material comprises, by weight, 200-250 parts of an inorganic raw material, 3.8-21.4 parts of polystyrene particles and 63-250 parts of water, and a mixture of the raw material composition is pressurized and heated in a mold and is subjected to demolding. The heat-insulating wall material product has high compressive strength, is fireproof and has good heat-insulating property.

Description

Thermal insulation wall material and manufacturing process thereof
Technical Field
The invention relates to the field of building materials, in particular to a heat-insulating wall material and a manufacturing process thereof.
Background
The thermal insulation material generally refers to a material having a thermal conductivity of 0.2W/(m.K) or less. In recent years, the development of heat insulating materials is rapid. The heat preservation technology and the heat preservation material with good performance are adopted in industry and buildings, and the energy-saving and emission-reducing functions are achieved well. With the development of science and technology and the improvement of the living standard of people, the requirements on heat-insulating materials are higher and higher.
The improvement of the self heat preservation and insulation capability of the building is the core of the development of the self heat preservation technology and is the final direction of the building energy saving technology. However, the development of the current self-insulation technology is slow, and a plurality of factors limit the development of the technology. The inorganic self-heat-insulation material autoclaved aerated concrete block which is mainly used in the market at present has the defects of large self weight (large construction strength and potential construction safety hazard), poor heat conductivity (the heat conductivity coefficient is about 0.16W/(m.K), poor heat insulation effect) and large water absorption (the water absorption can seriously influence the structural strength and the heat insulation performance once the material absorbs water) due to the material self. Therefore, the self-heat-preservation technology of the wall body cannot be widely popularized all the time.
The construction environment of the building wall puts higher requirements on the compression resistance, the heat insulation performance and the fireproof performance of the heat insulation material (because the fireproof performance needs to meet higher requirements indoors). The existing heat insulation material cannot give consideration to physical properties, heat insulation properties and fireproof properties, namely the three properties cannot be given consideration to the heat insulation material.
Disclosure of Invention
The invention aims to overcome the defect that the wall material in the prior art cannot give consideration to physical properties, heat-insulating property and fireproof property, and provides a heat-insulating wall material and a manufacturing process thereof.
The invention solves the technical problems through the following technical scheme:
heat-insulating wall materialThe raw material composition of the heat-insulating wall material comprises, by weight, 200-250 parts of an inorganic raw material, 3.8-21.4 parts of polystyrene particles and 63-250 parts of water, wherein the inorganic raw material comprises 56.2-208 parts of a siliceous material and 16.9-168.7 parts of a calcareous material, and the mixture of the raw material composition is pressurized and heated in a mold, wherein the temperature in the mold is 50-150 ℃, and the pressure applied on the mold is more than 2.8MPa, so that the density of the material in the mold is 525kg/m 3 And (4) keeping the pressure and the temperature, and demoulding.
Wherein the density of the material can be 496kg/m 3 、498kg/m 3 、500kg/m 3 、501kg/m 3 、503kg/m 3 、506kg/m 3 、507kg/m 3 、508kg/m 3 、509kg/m 3 、510kg/m 3 、512kg/m 3 、514kg/m 3 、515kg/m 3 、516kg/m 3 、518kg/m 3 、520kg/m 3 、523kg/m 3 Or 525kg/m 3 . The density of the material exceeds 525kg/m 3 When the amount is too large, the thermal conductivity is increased, and the requirement of less than 0.14W/(m.K) cannot be satisfied.
Preferably, the density of the material is 400-525kg/m 3 . More preferably, the density of the material is 500-525kg/m 3 。
In the invention, in the process of pressurizing and heating, the reaction of secondary foaming of the polystyrene particles and the chemical reaction of the siliceous material and the calcareous material occur simultaneously, the effective cavity volume of the mould is not changed, the combination of the polystyrene particles and the siliceous material aggregate is more compact, thereby the volume is 525kg/m 3 The compressive strength of 2.8MPa or more and the tensile strength of 0.16MPa or more can be achieved at a lower density below.
Preferably, the siliceous material comprises one or more of silica fume, kaolin, bentonite and diatomaceous earth.
Preferably, the calcium material is a material containing calcium oxide and/or calcium hydroxide.
Preferably, the calcia is calcium oxide and/or calcium hydroxide.
Preferably, the weight ratio of siliceous material to calcareous material is from 0.33 to 12.33, such as 0.33, 0.43, 0.54, 0.67, 0.82, 1, 1.22, 1.5, 1.86, 2.33, 3, 4, 5.67, 9 or 12.33.
Preferably, the weight ratio of the siliceous matter to the calcareous matter is 3.67-5.67.
Further preferably, the weight ratio of the siliceous matter to the calcareous matter is 1.5 to 3.
Preferably, the weight ratio of the inorganic starting material to the polystyrene particles is from 10.5 to 58.9, for example 10.5, 11.0, 11.5, 12.2, 15.4, 16.0, 17.4, 19.8, 24.5, 27.8, 31.1, 35.3, 39.8, 44.7, 50.0, 55.8 or 58.9.
Preferably, the weight ratio of the inorganic raw material to the polystyrene particles is 10.5 to 35.3.
Further preferably, the weight ratio of the inorganic raw material to the polystyrene particles is 10.5 to 16.
Preferably, the feedstock composition further comprises any additives that do not affect the reaction of the siliceous material and the calcareous material.
Preferably, the raw material composition further comprises a water reducing agent. The water reducing agent herein includes, but is not limited to, one or more of a lignosulfonate water reducing agent, a naphthalenesulfonate water reducing agent, a melamine-based water reducing agent, a polycarboxylic acid-based high-performance water reducing agent and a sulfamate-based high-efficiency water reducing agent.
Further preferably, the water reducing agent is used in an amount of 0.6-9 parts, such as 0.6, 1.2, 3, 5, 7.5 or 9.
Preferably, the raw material composition further comprises inorganic chopped fibers.
Further preferably, the inorganic chopped fibers are used in an amount of 1 to 12% by weight, for example 1%, 2%, 4%, 8%, 10%, 12% or 13% by weight, based on the total weight of the material.
The upper limit of the pressure applied to the mold is the upper limit of the pressure that the mold can withstand. Preferably, the pressure is between 2.8MPa and 30MPa. Wherein the pressure can be 2.8MPa, 3.5MPa, 5MPa, 10MPa or 30MPa.
The heat-insulating wall material is prepared by adopting any one of the manufacturing processes.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the thermal insulation wall material product has high compressive strength (at the density of 525 kg/m) 3 The heat-insulating material has the following advantages that the compressive strength reaches more than 2.8MPa, the tensile strength reaches more than 0.16MPa, the heat-insulating material is fireproof (the combustion performance reaches A2 level), the heat-insulating material also has good heat-insulating performance (the heat conductivity coefficient is less than 0.14W/(m.K)), and the volume water absorption rate is less than 40 percent and even less than 10 percent. The preparation method is simple in process, environment-friendly and pollution-free in the preparation process, high in efficiency, and provides a material technical basis for further improvement of the wall heat insulation technology.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The materials that can be used in the various examples and comparative examples of the present invention are specifically described below:
micro silicon powder: 1250 mesh (also known as silica fume) available from Shanghai Weiterrui Utility Co., ltd
Water reducing agent: HF retarding superplasticizer purchased from Shanghai Dongdong chemical industry Co Ltd
Calcium oxide: also known as quicklime, from east metallurgy lime product factory of Taicang City
Calcium hydroxide: also known as hydrated lime, purchased from Taicano Oriental metallurgy lime product factory
Polystyrene particles: from Wuxi Xingda bubble Plastic New materials Ltd
Inorganic chopped fibers: available from Beijing, new time-based Industrial thermal insulation fiber spray technology Ltd, model F-16G
Interpretation of terms:
silicon substance: refers to a material that is capable of reacting with a calcium oxide/hydroxide material to form calcium silicate.
Calcium substance: refers to materials containing calcium oxide and/or calcium hydroxide.
Water reducing agent: the water reducing agent is a substance capable of reducing unit water consumption, improving fluidity of a mixture and improving workability, and comprises a lignosulfonate water reducing agent, a naphthalene sulfonate water reducing agent, a melamine water reducing agent, an sulfamate high-efficiency water reducing agent and a polycarboxylic acid high-performance water reducing agent.
Inorganic chopped fibers: inorganic fibers having a chopped length of 1mm to 25 mm.
Heating and pressurizing: the temperature in the mold is 50-150 deg.C, and the pressure applied on the mold is 2.8MPa or above.
Keeping heating and pressurizing: the temperature in the mould is 50-150 ℃, and after the pressure applied on the mould is 2.8MPa or above, the temperature and the pressure are kept stable for a period of time.
The raw material compositions and sample test data of the thermal insulation wall materials of examples 1 to 118 are shown in tables 1 to 19 below, and the raw material compositions and sample test data of the thermal insulation wall materials of comparative examples 1 to 4 are shown in table 20 below. The detection criteria are as follows: the compressive strength is tested according to GB/T5486-2008 'test method for inorganic hard heat insulation products', the tensile strength perpendicular to the plate surface is tested according to GB/T29906-2013 'molded polystyrene board thin plastered wall external thermal insulation system material', the combustion performance grade is tested according to GB 8624-2012 'grading of combustion performance of building materials and products', the bending deformation is tested according to GB/T10801.1 'molded polystyrene foam plastics for heat insulation', and the volume water absorption is tested according to GB/T1034-2008 'determination of water absorption of plastics'.
Table 1 relates to examples 1 to 5 with different Si/Ca ratios
Figure BDA0002381787530000051
Table 2 relates to examples 6 to 11 with different Si/Ca ratios
Figure BDA0002381787530000052
Figure BDA0002381787530000061
Table 3 relates to examples 12 to 15 with different Si/Ca ratios
Figure BDA0002381787530000062
Table 4 examples 16 to 21 relating to different inorganic to organic ratios
Figure BDA0002381787530000071
Table 5 examples 22 to 27 relating to different inorganic to organic ratios
Figure BDA0002381787530000072
Figure BDA0002381787530000081
Table 6 examples 28 to 32 relating to different inorganic to organic ratios
Figure BDA0002381787530000082
Table 7 relates to examples 33-38 with water reducing agent addition at different Si/Ca ratios
Figure BDA0002381787530000083
Figure BDA0002381787530000091
Table 8 relates to examples 39-44 with water reducing agent addition at different Si/Ca ratios
Figure BDA0002381787530000092
Figure BDA0002381787530000101
Table 9 relates to examples 45-52 with water reducing agent addition at different inorganic to organic ratios
Figure BDA0002381787530000102
Table 10 relates to examples 53-60 with water reducing agent addition at different inorganic to organic ratios
Figure BDA0002381787530000111
Table 11 relates to examples 61 to 67 for different water-reducing agent addition ratios
Figure BDA0002381787530000112
Figure BDA0002381787530000121
Table 12 examples 68-75 relating to the addition of inorganic chopped fibers
Figure BDA0002381787530000122
Table 13 examples 76 to 83 relating to the addition of inorganic chopped fibers
Figure BDA0002381787530000131
Table 14 examples 84-89 relating to the addition of inorganic chopped fibers
Figure BDA0002381787530000132
Figure BDA0002381787530000141
Table 15 examples 90-95 relating to the addition of inorganic chopped fibers
Figure BDA0002381787530000142
Figure BDA0002381787530000151
Table 16 examples 96-100 relating to the addition of inorganic chopped fibers
Figure BDA0002381787530000152
Table 17 relates to examples 101-105 with different proportions of inorganic chopped fibers
Figure BDA0002381787530000153
Figure BDA0002381787530000161
TABLE 18 examples 106-111 relating to temperature ranges
Figure BDA0002381787530000162
Figure BDA0002381787530000171
TABLE 19 examples 112-118 relating to pressure ranges
Figure BDA0002381787530000172
TABLE 20 comparative examples 1 to 4
Figure BDA0002381787530000173
Figure BDA0002381787530000181
In the above examples and comparative examples, A represents the weight of siliceous material, B represents the weight of calcareous material, C represents the weight of inorganic material, and D represents the weight of polystyrene particles. The data for the amounts of the materials in the table are divided by 10 to obtain the corresponding number of parts for each material.
The preparation method of the thermal insulation wall materials of the examples 1 to 118 and the comparative examples 1 to 4 is as follows:
first, the expanded volume of the polystyrene particles is increased by heating to obtain pre-expanded polystyrene particles. The density of the polystyrene particles is changed correspondingly by setting the steam pressure, so that the required density is achieved, and the density of the polystyrene particles is between 6 and 12 g/L. Steam pressure was set to 0.2MPa, temperature was set to 100 ℃ and time was set to 30 seconds, pressure was maintained for 10 seconds, and pressure was reduced for 3 seconds.
Then, water, siliceous material (silicon dioxide), calcareous material (calcium oxide or calcium hydroxide), and inorganic chopped fibers and water reducing agent which may be used are mixed and stirred uniformly at 10-30 ℃ (the stirring time is adjusted according to the temperature change, and the rotating speed of a stirrer is set to 300 revolutions per minute), so that the whole is stirred uniformly to form the ready-mixed cementing material.
And then, adding the pre-expanded polystyrene particles into a stirring cylinder, starting a stirrer, and then adding the pre-mixed gel material for mixing and stirring, so as to fully and uniformly mix the gel material. After repeated tests, the stirring speed is not more than 200 rpm to prevent the polystyrene particles from shrinking and deforming. In addition, the volume weight of the added polystyrene material can be adjusted according to the volume weight required by customers.
Then the stirred mixture (containing the polystyrene particles expanded once) is input into a mould (the vertical height of the mould can be adjusted under the pressure state until reaching the set height, because the material shrinks in a certain proportion after being heated and pressurized, after a plurality of tests, the height of a material level meter needs to be adjusted to 6-9cm and the shrinkage proportion is 10-45 percent according to the thickness of a product of 5cm, and the internal pressure of the raw material composition is maintained to be more than 2.8MPa, so that the density of the raw material composition reaches 525kg/m 3 The following.
Before the die enters the pressing platform, the temperature of the oil temperature machine is set to be 50-150 ℃ to preheat the pressing platform. And pushing the mold after the temperature reaches a set value, pressurizing for more than 35 minutes, forming, naturally cooling and demolding. In the heating and pressurizing process, the polystyrene particles are foamed for the second time in the die, so that the compactness is further improved, and the tensile strength is also improved.
And finally, curing the demoulded product in a curing room, wherein the curing room needs drying and ventilation, and the curing time is generally about 5-10 days and is determined according to the temperature and the humidity.
As can be seen from Table 1, the weight ratio of the inorganic raw material to the polystyrene particles is maintained at 19.8, and when the weight ratio of the siliceous matter to the calcareous matter is 0.33 to 12.33, the compressive strength can reach more than 2.8MPa, the tensile strength can reach more than 0.160MPa, and the thermal conductivity is less than 0.14. In Table 2, when the weight ratio of the siliceous material to the calcareous material is 3.67 to 5.67, the compressive strength is 3.1MPa or more, the tensile strength is 0.184MPa or more, and the thermal conductivity is 0.126 or less. In Table 3, when the weight ratio of the siliceous material to the calcareous material is 1.5 to 3, the compressive strength is 3.5MPa or more, the tensile strength is 0.202MPa or more, and the thermal conductivity is 0.1275 or less.
As can be seen from Table 4, the weight ratio of the siliceous material to the calcareous material is maintained at 2.33, and when the weight ratio of the inorganic raw material to the polystyrene particles is 35.3 to 58.9, the compressive strength is 2.8MPa or more, the tensile strength is 0.179MPa or more, and the thermal conductivity is 0.1285 or less. In Table 5, when the weight ratio of the inorganic raw material to the polystyrene particles is 16 to 31.1, the compressive strength is 3.4MPa or more, the tensile strength is 0.273MPa or more, and the thermal conductivity is 0.1262 or less. In table 6, when the weight ratio of the inorganic raw material to the polystyrene particles is 10.5 to 15.4, the compressive strength can be up to 3.7MPa or more, the tensile strength can be up to 0.367MPa or more, and the thermal conductivity can be up to 0.124 or less.
It can be seen from a combination of tables 1-6 that the present invention has a great advantage in terms of the volume water absorption of the final product, and the volume water absorption of examples 1-32 is substantially maintained between 10% and 40%, which is advantageous in the same type of product. Furthermore, the dry density is less than 525kg/m 3 Under the condition, the compressive strength can reach more than 2.8MPa, even more than 3.5 MPa.
It can be seen from tables 7 and 8 that, while the weight ratio of the inorganic material to the polystyrene particles is maintained at 19.8, and the weight ratio of the siliceous material to the calcareous material is in the range of 0.54 to 9, 1.3% of the total weight of the materials is added with the water reducing agent, the compressive strength can reach above 3.8MPa, the tensile strength can reach above 0.238MPa, and the thermal conductivity can reach below 0.127. When the weight ratio of the siliceous matter to the calcareous matter is more than 12.33, the compressive strength is less than 3.8MPa, which is not in line with the compressive requirement. When the weight ratio of the siliceous matter to the calcareous matter is less than 0.54, the compressive strength is also less than 3.8MPa.
As can be seen from tables 9 and 10, the weight ratio of the siliceous material to the calcareous material is maintained at 2.33, and when the weight ratio of the inorganic raw material to the polystyrene particles is 10.5 to 55.8, 1.3% of the total weight of the water reducing agent is added, the compressive strength can reach more than 3.8MPa, the tensile strength can reach more than 0.24MPa, and the thermal conductivity can reach less than 0.1294. When the weight ratio of the inorganic raw material to the polystyrene particles is more than 55.8, the thermal conductivity is more than 0.13, which does not meet the requirement of heat preservation.
The addition of the water reducing agent also brings another remarkable effect that the volume water absorption of the product is greatly reduced, and the volume water absorption of most examples in tables 7 to 11 is less than 10%, which is very low in this type of insulation material. As can be seen from Table 11, the addition of water-reducing agent in an amount of up to 4% is effective in improving both tensile strength and compressive strength, and when the water-reducing agent is added in an amount of more than 4%, the material is difficult to mold.
It can be seen from tables 12 and 13 that the weight ratio of the inorganic raw material to the polystyrene particles is maintained at 17.8, and when the weight ratio of the siliceous material to the calcareous material is in the range of 0.25 to 12.33, the inorganic chopped fibers which are about 5% of the total weight of the materials are added, the compressive strength can reach more than 3.1MPa, the tensile strength can reach more than 0.203MPa, and the thermal conductivity can reach less than 0.1385. When the weight ratio of the siliceous material to the calcareous material is more than 12.33, the molding cannot be performed.
It can be seen from tables 14, 15 and 16 that the weight ratio of siliceous matter to calcareous matter is 7:3, and when the weight ratio of the inorganic raw material to the polystyrene particles is in the range of 10.5 to 58.9, about 5% of the total weight of the inorganic chopped fibers is added, the compressive strength can reach 3.7MPa or more, the tensile strength can reach 0.268MPa or more, and the thermal conductivity can reach 0.1272 or less. When the weight ratio of the inorganic raw material to the polystyrene particles is less than 10, the fire-retardant property of the final product is B1. When the weight ratio of the inorganic raw material to the polystyrene particles is more than 58.9, molding is impossible.
As can be seen from Table 17, the addition of different amounts of inorganic chopped fibers all contribute to the improvement of strength.
As can be seen from Table 18, the temperature can be varied from 50 to 150 ℃. When the temperature is less than 50 ℃, both the tensile strength and the compressive strength are drastically reduced. When the temperature is more than 150 ℃, the aggregate is burnt.
As can be seen from Table 19, the pressure was not less than 2.8MPa, and was within the range of 235MPa, which is the ultimate strength of the steel mold. When the pressure is less than 2.8MPa, the compressive strength of the final product is less than 2.8MPa, and when the pressure is more than 235MPa, the die is crushed.
As can be seen from Table 20, in the absence of the water reducing agent and the inorganic chopped fibers, when the weight ratio of the siliceous material to the calcareous material is greater than 12.33 or less than 0.33, the compressive strength is less than 2.5MPa, and thus the compressive strength is not up to the standard. When the weight ratio of the inorganic raw materials to the polystyrene particles is more than 58.9, the compressive strength is less than 2.5MPa, so that the compressive strength does not reach the standard. When the weight ratio of the inorganic raw material to the polystyrene particles is less than 10.5, the fireproof performance is B1, so that the fireproof performance does not reach the standard.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (16)

1. The manufacturing process of the heat-insulating wall material is characterized in that a raw material composition of the heat-insulating wall material comprises, by weight, 200-250 parts of inorganic raw materials, 3.8-21.4 parts of polystyrene particles and 63-250 parts of water, wherein the inorganic raw materials comprise 56.2-208 parts of siliceous materials and 16.9-168.7 parts of calcareous materials, and a mixture of the raw material composition is pressurized and heated in a mold, wherein the temperature in the mold is 50-150 ℃, and the pressure exerted on the mold is more than 2.8MPa, so that the density of materials in the mold is 525kg/m 3 Keeping pressurizing and heating, and demoulding;
the calcium substance is calcium oxide and/or calcium hydroxide;
the weight ratio of the inorganic raw material to the polystyrene particles is 24.5-35.3.
2. The process for preparing a thermal insulation wall material according to claim 1, wherein the siliceous material comprises one or more of silica fume, kaolin, bentonite and diatomite.
3. The process for preparing heat-insulating wall material according to claim 1, wherein the weight ratio of the siliceous material to the calcareous material is 0.33-9.
4. The manufacturing process of the heat-insulating wall material as claimed in claim 3, wherein the weight ratio of the siliceous material to the calcareous material is 3.67-5.67.
5. The manufacturing process of the heat-insulating wall material as claimed in claim 3, wherein the weight ratio of the siliceous material to the calcareous material is 1.5-3.
6. The process for preparing a thermal insulation wall material according to claim 1, wherein the weight ratio of the inorganic raw material to the polystyrene particles is 27.8-35.3.
7. The process for preparing a thermal insulation wall material according to claim 6, wherein the weight ratio of the inorganic raw material to the polystyrene particles is 31.1.
8. The process for manufacturing a thermal insulation wall material according to claim 1, wherein the raw material composition further comprises a water reducing agent.
9. The manufacturing process of the heat-insulating wall material as claimed in claim 8, wherein the amount of the water reducing agent is 0.6-9 parts.
10. The process for making a thermal insulating wall material according to claim 1, wherein the raw material composition further comprises inorganic chopped fibers.
11. The process for preparing a thermal insulation wall material according to claim 10, wherein the amount of the inorganic chopped fibers is 1-13% of the total weight of the material.
12. The process for preparing a thermal insulation wall material according to claim 1, wherein the inorganic raw material is a siliceous material and a calcareous material.
13. The manufacturing process of the heat-insulating wall material as claimed in claim 1, wherein the density of the heat-insulating wall material is 500-525kg/m 3 。
14. The process for manufacturing a thermal insulation wall material according to claim 1, wherein the upper limit of the pressure is the upper limit pressure which the mold can bear.
15. The manufacturing process of the thermal insulation wall material as claimed in claim 1, wherein the pressure is 2.8MPa-30MPa.
16. An insulating wall material, characterized in that the insulating wall material is manufactured by the manufacturing process of the insulating wall material according to any one of claims 1 to 15.
CN202010085174.8A 2020-02-10 2020-02-10 Thermal insulation wall material and manufacturing process thereof Active CN111285657B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN202010085174.8A CN111285657B (en) 2020-02-10 2020-02-10 Thermal insulation wall material and manufacturing process thereof
PCT/CN2021/071755 WO2021159912A1 (en) 2020-02-10 2021-01-14 Fire-resistant and thermal insulation material and preparation process therefor
KR1020227031391A KR20220140595A (en) 2020-02-10 2021-01-14 Fireproof insulation and manufacturing method thereof
JP2022548801A JP2023513724A (en) 2020-02-10 2021-01-14 Refractory heat insulating material and its manufacturing process
EP21754016.0A EP4105190A4 (en) 2020-02-10 2021-01-14 Fire-resistant and thermal insulation material and preparation process therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010085174.8A CN111285657B (en) 2020-02-10 2020-02-10 Thermal insulation wall material and manufacturing process thereof

Publications (2)

Publication Number Publication Date
CN111285657A CN111285657A (en) 2020-06-16
CN111285657B true CN111285657B (en) 2022-11-08

Family

ID=71017222

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010085174.8A Active CN111285657B (en) 2020-02-10 2020-02-10 Thermal insulation wall material and manufacturing process thereof

Country Status (1)

Country Link
CN (1) CN111285657B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4105190A4 (en) * 2020-02-10 2023-08-23 Shanghai Shengkui Products Co., Ltd Fire-resistant and thermal insulation material and preparation process therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2777149A1 (en) * 2011-05-27 2012-11-27 Sto Ag Method for manufacturing a formed body with a cavity structure for sound and/or heat insulation and formed body for sound and/or heat insulation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103058705B (en) * 2013-01-28 2015-01-07 邓正凯 Composite autoclaved aerated concrete self-insulation building block
CN109879652B (en) * 2018-08-06 2020-12-29 上海圣奎新型建材有限公司 Polystyrene-containing raw material composition and heat-insulation board
CN109879654B (en) * 2019-01-02 2020-08-11 上海圣奎塑业有限公司 Insulation board raw material composition and insulation board

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2777149A1 (en) * 2011-05-27 2012-11-27 Sto Ag Method for manufacturing a formed body with a cavity structure for sound and/or heat insulation and formed body for sound and/or heat insulation

Also Published As

Publication number Publication date
CN111285657A (en) 2020-06-16

Similar Documents

Publication Publication Date Title
CN109879654B (en) Insulation board raw material composition and insulation board
CN107556036B (en) Heat insulation board and preparation method thereof
CN106145829B (en) A kind of heat-insulation wall plate and preparation method thereof
CN110627428A (en) Energy-saving environment-friendly concrete and preparation process thereof
CN110372290B (en) High-content volcanic ash foamed concrete material and preparation method thereof
WO2021159912A1 (en) Fire-resistant and thermal insulation material and preparation process therefor
CN104311108A (en) Hydrophobic inorganic nano insulation board and preparation method thereof
CN110922154A (en) Gypsum-based insulation board and preparation method thereof
CN114853439B (en) Phosphogypsum-based fireproof door core board and preparation process thereof
CN105152598A (en) Truss type ceramsite foam concrete and preparation method thereof
CN111348883A (en) Autoclaved aerated concrete with high crack resistance and low water absorption rate and preparation method thereof
CN111170675B (en) Building floor fireproof heat-insulation material and manufacturing process thereof
CN114644473B (en) Ultra-low density foaming magnesium oxysulfate cement and preparation method thereof
CN109912285B (en) Manufacturing process of flexible heat-insulation board
CN113979716B (en) Preparation method of magnesium oxysulfate cementing material adopting silicon dioxide aerogel and building component
CN108585663B (en) Foaming cement and preparation method thereof
CN111285657B (en) Thermal insulation wall material and manufacturing process thereof
CN107540312A (en) A kind of Foam cement insulation material and preparation method thereof
CN112456955A (en) Basic magnesium sulfate cement-based lightweight porous material and preparation method thereof
CN109881884B (en) Reinforced building disassembly-free heat preservation template and preparation method thereof
CN110950568A (en) Multifunctional inorganic composite foam concrete modifier and preparation method thereof
CN103755289B (en) Heat insulating porous lagging material of ultralight cement based and preparation method thereof
CN112010625A (en) Fireproof heat-insulating material and preparation process thereof
CN112079610B (en) Manufacturing process of foaming insulation board
CN113788653A (en) Finely ground sand ceramsite concrete, light partition board and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant