CN113200721B - Sound-insulation fireproof concrete partition plate composite material and preparation method thereof - Google Patents
Sound-insulation fireproof concrete partition plate composite material and preparation method thereof Download PDFInfo
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- CN113200721B CN113200721B CN202110531341.1A CN202110531341A CN113200721B CN 113200721 B CN113200721 B CN 113200721B CN 202110531341 A CN202110531341 A CN 202110531341A CN 113200721 B CN113200721 B CN 113200721B
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- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
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- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/30—Condensation polymers of aldehydes or ketones
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- 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
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- 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
- C04B2111/52—Sound-insulating materials
Abstract
The application relates to the field of building materials, in particular to a sound-insulation fireproof concrete partition board composite material and a preparation method thereof. The sound-insulation fireproof concrete partition board composite material comprises the following raw materials in parts by weight: 40-60 parts of Portland cement, 15-25 parts of expanded perlite, 10-20 parts of H-series silicon micropowder, 20-30 parts of acrylic resin sound-insulating composite material, 2-6 parts of flame retardant, 1-3 parts of redispersible latex powder and 50-70 parts of water; the preparation raw materials of the acrylic resin sound-insulation composite material comprise acrylic resin emulsion, cross-linked resin and a polycarboxylic acid water reducing agent, wherein the mass ratio of the acrylic resin emulsion to the cross-linked resin to the polycarboxylic acid water reducing agent is 10 (3-5) to (1-2). This application adopts acrylic resin sound insulation combined material to replace the gypsum, has better syllable-dividing effect and dampproofing effect, and uses or places difficult fracture for a long time under the low temperature humid environment.
Description
Technical Field
The application relates to the field of building materials, in particular to a sound-insulation fireproof concrete partition board composite material and a preparation method thereof.
Background
The sound-proof and fireproof concrete partition board has fireproof and sound-proof properties, and is one of building materials widely used in the building industry. Traditional fire prevention concrete partition plate gives sound insulation is cement for the cementing material, and the admixture is inorganic material also, and cement and admixture are joined in marriage into the thick liquids to add the air formation cellular structure in to the thick liquids, thereby realize the effect that gives sound insulation, cement and admixture do not all burn simultaneously, have fire behavior.
But the effect that gives sound insulation of present fire prevention concrete partition plate that gives sound insulation requires more to the joining condition of air, and is also great to the effect influence that gives sound insulation. Therefore, the research and development of a sound-insulation fireproof concrete partition board composite material having a sound-insulation effect without adding air has become the research center of researchers. For example, publication No. CN112552719A discloses a gypsum-based fireproof coating for concrete surface fire protection and heat insulation, which has sound insulation, heat insulation and fireproof properties due to the microporous structure and heat dehydration property of gypsum.
However, the applicant finds that gypsum has poor moisture resistance, is easy to deform the sound-insulating and fire-proof concrete partition board due to moisture, and is easy to crack when being used or placed for a long time in a low-temperature and humid environment.
Disclosure of Invention
In order to overcome the defect that the sound-insulation fireproof concrete partition board is easy to crack after being used for a long time or placed in a low-temperature humid environment, the application provides a sound-insulation fireproof concrete partition board composite material and a preparation method thereof.
The utility model provides a first aspect, this application provides a fire prevention concrete partition plate combined material gives sound insulation, adopts following technical scheme to realize:
a sound-insulation fireproof concrete partition board composite material comprises the following raw materials in parts by weight: 40-60 parts of Portland cement, 15-25 parts of expanded perlite, 10-20 parts of H-series silicon micropowder, 20-30 parts of acrylic resin sound-insulating composite material, 2-6 parts of flame retardant, 1-3 parts of redispersible latex powder and 50-70 parts of water; the preparation raw materials of the acrylic resin sound-insulation composite material comprise acrylic resin emulsion, cross-linked resin and a polycarboxylic acid water reducing agent, wherein the mass ratio of the acrylic resin emulsion to the cross-linked resin to the polycarboxylic acid water reducing agent is 10 (3-5) to (1-2).
Through adopting above-mentioned technical scheme, this application adopts acrylic resin sound insulation combined material to replace the gypsum, has better syllable-dividing effect and dampproofing effect, and uses or places difficult fracture for a long time under low temperature humid environment. The acrylic resin emulsion, the cross-linked resin, the polycarboxylate superplasticizer and other components act together, a plurality of three-dimensional cross-linked structures exist, and three-dimensional cross-linked meshes are formed more favorably, so that the sound insulation effect is achieved, and air does not need to be added when the sound insulation fireproof concrete partition board is prepared. Meanwhile, the mass ratio of the acrylic resin emulsion to the cross-linking resin to the polycarboxylic acid water reducing agent is controlled to be 10 (3-5) to (1-2), so that the cracking resistance and the sound insulation effect of the sound insulation fireproof concrete partition board composite material in a low-temperature humid environment can be further improved, the adhesive force of the acrylic resin sound insulation composite material can be improved due to the fact that the cross-linking structure formed by self cross-linking of the acrylic resin emulsion is more, the three-dimensional cross-linking meshes are more stable, the concrete shrinkage rate is reduced due to the polycarboxylic acid water reducing agent, and the sound insulation effect and the water resistance of the sound insulation fireproof concrete partition board composite material are better due to the combined action of the acrylic resin emulsion, the cross-linking resin and the polycarboxylic acid water reducing agent. In addition, the strength of the sound-insulation fireproof concrete partition board composite material is improved by the H-series silicon micropowder and the expanded perlite, and the dispersibility of various components such as the acrylic resin sound-insulation composite material and the flame retardant is improved by the redispersible latex powder, so that the sound insulation performance of the sound-insulation fireproof concrete partition board composite material is improved.
Preferably, the mass ratio of the acrylic resin emulsion to the cross-linking resin to the polycarboxylic acid water reducing agent is 10:4.2: 1.7.
By adopting the technical scheme, the acrylic resin sound insulation composite material prepared from the acrylic resin emulsion, the cross-linking resin and the polycarboxylate superplasticizer in the mass ratio of 10:4.2:1.7 enables the sound insulation effect and the cracking resistance under low-temperature and humid environment of the sound insulation fireproof concrete partition board composite material to be better. The reason is probably that three-dimensional cross-linked meshes formed by the acrylic resin emulsion and the cross-linked resin according to the mass ratio of 10:4.2 are uniform, so that the sound insulation effect is favorably improved, and meanwhile, the cross-linked density of the formed three-dimensional network structure is higher, so that the adhesive force and the water resistance of the acrylic resin sound insulation composite material are favorably improved.
Preferably, the acrylic Resin emulsion is selected from one or more of the group consisting of Wanna-Resin ARE 2152, Wanna-Resin ARE 2116 and Wanna-Resin ARE 2138.
By adopting the technical scheme, the water resistance of the acrylic Resin sound insulation composite material can be improved by using the Wanna-Resin ARE 2152 and the Wanna-Resin ARE 2116; the Wanna-Resin ARE 2138 is a hydroxyl acrylate secondary dispersion, has a self-emulsifying effect and high crosslinking density, and can improve the adhesive force of the acrylic Resin sound-insulation composite material.
Preferably, the acrylic Resin emulsion is formed by mixing Wanna-Resin ARE 2152 and Wanna-Resin ARE 2138 according to the mass ratio of 1 (2-3).
By adopting the technical scheme, the Wanna-Resin ARE 2152 and the Wanna-Resin ARE 2138 ARE compounded, and the mass ratio of the two is controlled to be 1 (2-3), so that the water resistance and the adhesive force of the acrylic Resin sound-insulation composite material ARE improved, and the sound-insulation effect and the cracking resistance under a low-temperature humid environment of the sound-insulation fireproof concrete partition board composite material ARE obviously improved. The reason is probably that the combination of the Wanna-Resin ARE 2152 and the Wanna-Resin ARE 2138 improves the stability of a three-dimensional cross-linked network structure formed by the acrylic Resin emulsion and the cross-linked Resin, and further improves the sound insulation effect of the sound insulation fireproof concrete partition board composite material. Meanwhile, the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1 (2-3), the dispersibility and the compatibility of all components in the acrylic Resin sound-insulation composite material ARE better, the adhesion and the durability of the acrylic Resin sound-insulation composite material ARE further improved, and the sound-insulation fireproof concrete partition board composite material is not easy to crack after being used or placed in a low-temperature and humid environment for a long time.
Preferably, the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1: 2.6.
By adopting the technical scheme, the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1:2.6, and the sound insulation effect of the sound insulation fireproof concrete partition board composite material is further improved.
Preferably, the cross-linked resin is formed by mixing VEGF scale cement and amino resin according to the mass ratio of 1 (1.2-1.8).
By adopting the technical scheme, the VEGF scale daub and the amino resin are compounded to be used as the cross-linked resin, so that the adhesive property, the moisture resistance and the sound insulation effect of the acrylic resin sound insulation composite material can be improved. The glass flakes which are irregularly distributed in the VEGF flake daub have larger specific area, can disperse the cross-linked resin, increase the cross-linking ratio of the cross-linked resin and the acrylic resin emulsion, and can reduce the residual internal stress of the cross-linked resin and the acrylic resin emulsion after cross-linking; the cross-linking activity of the amino Resin, the Wanna-Resin ARE 2152 and the Wanna-Resin ARE 2138 is higher, the stability and the cross-linking density of a cross-linked network structure ARE further improved, the VEGF scale cement and the amino Resin act together, and the sound insulation effect and the cracking resistance in a low-temperature and humid environment of the sound insulation and fire prevention concrete partition board composite material ARE further improved.
Preferably, the amino resin is MR-625 or CYMEL303 LF; more preferably, the amino resin is MR-625.
By adopting the technical scheme, the amino resin MR-625 or CYMEL303LF has higher crosslinking density with acrylic resin emulsion, so that the adhesive force of the acrylic resin sound-insulation composite material can be improved, and compared with the MR-625 and CYMEL303LF, the MR-625 self crosslinking speed is lower, so that the crosslinking with the acrylic resin emulsion is facilitated, the pore volume of the three-dimensional crosslinked meshes is larger, and the sound-insulation effect of the acrylic resin sound-insulation composite material is further improved.
In the present application, the polycarboxylate water reducing agent includes but is not limited to: any one or more of BKS-199, BKS-168, BKS-101, and BKS-188.
Preferably, the flame retardant is selected from one or more of magnesium hydroxide, aluminum hydroxide and RAYLOK 1722; more preferably, the flame retardant is a mixture of magnesium hydroxide and RAYLOK 1722, and the mass ratio of the magnesium hydroxide to the RAYLOK 1722 is 1 (1.2-1.4).
By adopting the technical scheme, the fireproof performance of the sound-insulation fireproof concrete partition board composite material is improved by adding the flame retardants such as magnesium hydroxide, aluminum hydroxide and RAYLOK 1722, and the sound-insulation fireproof concrete partition board composite material has better fireproof performance and can improve the sound-insulation effect of the sound-insulation fireproof concrete partition board and the cracking resistance in a low-temperature humid environment by compounding the magnesium hydroxide and the RAYLOK 1722. The reason is probably that the RAYLOK 1722 is polyester olefine acid ester, and can improve the compatibility of the flame retardant and the acrylic resin sound-insulation composite material, so that the adhesive force of the sound-insulation fireproof concrete partition board is improved.
In the application, the redispersible latex powder comprises but is not limited to any one or more of AT-210, Momentive HP8029, WWJF-8010, WWJF-8020 and WWJF-8050.
In a second aspect, the application provides a preparation method of a sound-insulation fireproof concrete partition board composite material, which adopts the following technical scheme:
a preparation method of a sound-insulation fireproof concrete partition board composite material comprises the following steps:
mixing the silicate cement, the expanded perlite and the H-series silicon micro powder, stirring, adding the redispersible latex powder and water, stirring, adding the acrylic resin sound-insulation composite material and the flame retardant, and continuously stirring until the mixture is uniform to obtain the sound-insulation fireproof concrete partition board composite material.
By adopting the technical scheme, the preparation method of the sound-insulation fireproof concrete partition board composite material is simple, the cost is low, the prepared sound-insulation fireproof concrete partition board composite material is good in fireproof effect and sound-insulation effect, and the sound-insulation fireproof concrete partition board composite material is not easy to crack after being used or placed in a low-temperature humid environment for a long time.
In summary, the present application has the following beneficial effects:
1. this application adopts acrylic resin sound insulation combined material to replace the gypsum, has better syllable-dividing effect and dampproofing effect, and uses or places difficult fracture for a long time under the low temperature humid environment. The acrylic resin emulsion, the cross-linked resin, the polycarboxylate superplasticizer and other components act together, a plurality of three-dimensional cross-linked structures exist, and three-dimensional cross-linked meshes are formed more favorably, so that the sound insulation effect is achieved, and air does not need to be added when the sound insulation fireproof concrete partition board is prepared. The mass ratio of the acrylic resin emulsion to the cross-linking resin to the polycarboxylate superplasticizer is controlled to be 10 (3-5) to (1-2), so that the sound insulation effect of the sound insulation fireproof concrete partition board composite material and the cracking resistance in a low-temperature and humid environment can be further improved.
2. The sound-proof fireproof concrete partition board composite material is compounded by using the Wanna-Resin ARE 2152 and the Wanna-Resin ARE 2138, and the mass ratio of the two is controlled to be 1 (2-3), so that the water resistance and the adhesive force of the acrylic Resin sound-proof composite material ARE improved, and the sound-proof effect and the cracking resistance in a low-temperature and humid environment of the sound-proof fireproof concrete partition board composite material ARE obviously improved.
3. The VEGF scale daub and the amino resin are compounded to serve as the cross-linked resin, so that the adhesive property, the moisture resistance and the sound insulation effect of the acrylic resin sound insulation composite material can be improved.
4. According to the application, the amino resin MR-625 or CYMEL303LF has higher crosslinking density with acrylic resin emulsion, so that the adhesive force of the acrylic resin sound-insulation composite material can be improved, and compared with MR-625 and CYMEL303LF, the MR-625 crosslinking speed is lower, so that the crosslinking with the acrylic resin emulsion is facilitated, the pore volume of the three-dimensional crosslinked meshes is larger, and the sound-insulation effect of the acrylic resin sound-insulation composite material is further improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The raw materials used in the present application are commercially available, and if not otherwise specified, the raw materials not mentioned in the preparation examples, examples and comparative examples of the present application are purchased from national pharmaceutical group chemical agents limited.
Preparation example
Preparation examples 1 to 16 provide an acrylic resin sound-insulating composite material, and the following description will be given by taking preparation example 1 as an example.
The acrylic resin sound insulation composite material provided by preparation example 1 comprises the following preparation steps:
mixing 1000kg of acrylic resin emulsion, 300kg of cross-linked resin and 100kg of polycarboxylic acid water reducing agent, uniformly stirring, adding into an internal mixer, mixing for 1.5h at 135 ℃, then putting into a double-screw extruder, and extruding at the temperature of a machine head controlled at 150 ℃ to obtain the acrylic resin sound-insulation composite material;
wherein the acrylic Resin emulsion is Wanna-Resin ARE 2184 which is purchased from Guangdong company Limited of New Yokou New materials science and technology;
the cross-linked resin is amino resin BR-220 which is purchased from Changchun chemical engineering of Taiwan;
the polycarboxylate water reducer is BKS-168 and is purchased from Boke chemical Co., Ltd.
Preparation examples 2 to 5 differed from preparation example 1 only in that: the raw materials for preparing the acrylic resin sound-insulating composite material have different qualities, and are shown in table 1.
Table 1 preparation examples 1 to 5 quality of raw material for preparation of acrylic resin soundproof composite material
| Components | Preparation example 1 | Preparation example 2 | Preparation example 3 | Preparation example 4 | Preparation example 5 |
| Acrylic resin emulsion | 1000kg | 1000kg | 1000kg | 1000kg | 1000kg |
| Crosslinked resin | 300kg | 500kg | 420kg | 420kg | 420kg |
| Polycarboxylic acid water reducing agent | 100kg | 100kg | 100kg | 200kg | 170kg |
Preparation 6 differed from preparation 5 only in that: the acrylic Resin emulsion was Wanna-Resin ARE 2152, available from Richmond Rich New materials science and technology (Guangdong) Inc.
Preparation 7 differed from preparation 5 only in that: the acrylic Resin emulsion was Wanna-Resin ARE 2138, purchased from Richmond Richardson technologies, Inc. (Guangdong).
Preparation 8 differed from preparation 5 only in that: the acrylic Resin emulsion is a mixture of Wanna-Resin ARE 2116 and Wanna-Resin ARE 2138, the quality ratio of the Wanna-Resin ARE 2116 to the Wanna-Resin ARE 2138 is 1:2, and the Wanna-Resin ARE 2116 is purchased from Rieger New materials science and technology (Guangdong) Co.
Preparation 9 differed from preparation 5 only in that: the acrylic Resin emulsion is a mixture of Wanna-Resin ARE 2152 and Wanna-Resin ARE 2138, and the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1:2.
Preparation 10 differed from preparation 9 only in that: the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1: 3.
Preparation 11 differed from preparation 9 only in that: the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1: 2.6.
Preparation 12 differed from preparation 11 only in that: the cross-linked resin is a mixture of VEGF scale cement and amino resin BR-220, the mass ratio of the VEGF scale cement to the amino resin BR-220 is 1:1.2, and the VEGF scale cement is purchased from a company Limited.
Preparation 13 differed from preparation 12 only in that: the mass ratio of the VEGF scale daub to the amino resin BR-220 is 1: 1.8.
Preparation 14 differed from preparation 12 only in that: the mass ratio of the VEGF scale daub to the amino resin BR-220 is 1: 1.4.
Preparation 15 differed from preparation 14 only in that: the amino resin BR-220 is replaced by the amino resin MR-625 in terms of equal mass, and the amino resin MR-625 is purchased from the chemical industry of Taiwan Changchun.
Preparation 16 differed from preparation 14 only in that: the amino resin BR-220 is replaced by amino resin CYMEL303LF in equal mass, and the amino resin CYMEL303LF is purchased from Allnex.
Preparation of comparative example
Comparative example 1 was prepared, differing from preparation example 1 only in that: the mass of the acrylic resin emulsion was replaced from 1000kg to 2000 kg.
Comparative example 2 was prepared, differing from preparation example 1 only in that: the mass of the crosslinked resin was changed from 300kg to 800 kg.
Comparative example 3 was prepared, differing from preparation example 1 only in that: the cross-linked resin and the like are replaced by acrylic resin emulsion.
Comparative example 4 was prepared, differing from preparation example 1 only in that: and the polycarboxylic acid water reducing agent and the like are replaced by acrylic resin emulsion.
Examples
Examples 1-23 provide a sound-insulating fire-retardant concrete partition composite, which is described below by way of example 1.
The sound-insulation fireproof concrete partition board composite material provided by the embodiment 1 comprises the following preparation steps:
mixing 400kg of Portland cement, 150kg of expanded perlite and 100kg of H-series silicon micropowder, stirring, adding 10kg of redispersible latex powder and 500kg of water, stirring, adding 200kg of acrylic resin sound-insulation composite material and 20kg of flame retardant, and continuously stirring until the mixture is uniform to obtain the sound-insulation fireproof concrete partition board composite material;
wherein the portland cement is CGM (China general microbiological culture Collection center) superfine cement purchased from Shandong Tegu novel building materials Co;
the expanded perlite is purchased from Hengxin perlite, Inc., Yongqing county;
the H-series silica micropowder is H032 silica micropowder which is purchased from Guangdong Qichen New Material science and technology Co., Ltd;
the acrylic resin sound insulation composite material is derived from preparation example 1;
the flame retardant is aluminum hydroxide;
the model of the redispersible latex powder is AT-210, and is purchased from Tokyo Fangaotian energy-saving technology Limited.
Examples 2-16, which differ from example 1 only in that: the acrylic resin sound-insulating composite material has different sources, and is shown in table 2.
Table 2 examples 1-16 acrylic sound-deadening composite sources
Examples 17 to 18, which differ from example 15 only in that: the sound-insulation fireproof concrete partition board composite material is prepared from different raw materials in quality, and is specifically shown in table 3.
TABLE 3 quality of composite material for sound-proof and fireproof concrete partition board
| Components | Example 15 | Example 17 | Example 18 |
| Portland cement | 400kg | 600kg | 500kg |
| Expanded perlite | 150kg | 250kg | 200kg |
| H-series silicon micropowder | 100kg | 200kg | 150kg |
| Redispersible latex powder | 10kg | 30kg | 20kg |
| Water (W) | 500kg | 700kg | 600kg |
| Acrylic resin sound insulation composite material | 200kg | 300kg | 250kg |
| Flame retardant | 20kg | 60kg | 40kg |
Example 19 differs from example 18 only in that: the flame retardant is magnesium hydroxide.
Example 20, which differs from example 18 only in that: the flame retardant was RAYLOK 1722, purchased from Allnex.
Example 21 differs from example 18 only in that: the flame retardant is a mixture of aluminum hydroxide and RAYLOK 1722, and the mass ratio of the aluminum hydroxide to the RAYLOK 1722 is 1: 1.2.
Example 22, which differs from example 18 only in that: the flame retardant is a mixture of magnesium hydroxide and RAYLOK 1722, and the mass ratio of the magnesium hydroxide to the RAYLOK 1722 is 1: 1.2.
Example 23 differs from example 22 only in that: the mass ratio of the magnesium hydroxide to the RAYLOK 1722 is 1: 1.4.
Comparative example
Comparative examples 1 to 4, differing from example 1 only in that: the acrylic resin sound-insulating composite material has different sources, and is shown in table 4.
Table 4 comparative examples 1-4 acrylic sound-insulating composite sources
Comparative example 5, which differs from example 1 only in that: the acrylic resin sound insulation composite material is replaced by semi-hydrated gypsum which is purchased from Heidehong crown gypsum environmental protection materials science and technology ltd.
Comparative example 6, which differs from example 1 only in that: acrylic resin sound insulation composite material is not added.
Performance test
The following performance tests were performed on the sound-insulating and fire-retardant concrete partition wall plate composite materials provided in examples 1 to 23 and comparative examples 1 to 6 of the present application.
1. Cracking resistance: the sound-insulating and fire-proof concrete partition plate composite materials provided in examples 1 to 23 and comparative examples 1 to 6 were cast to a volume weight of 700kg/m3The partition board is placed in an environment with the temperature of minus 20 ℃ and the air humidity of 80 percent for 1 month, 3 months, 6 months, 1 year, 2 years and 5 years to observe whether the cracking phenomenon occurs or not, and the test result is shown in table 5.
TABLE 5 cracking resistance test results
2. The sound insulation effect: the sound-insulating and fire-proof concrete partition wall composite materials provided in examples 1 to 23 and comparative examples 1 to 6 were cast into a partition wall having a thickness of 9cm, six partition walls were used to form a sealed cube space, a twelve-sided sound source body was made to emit a noise having a sound frequency of 100Hz, a spectrum analyzer was used to analyze the sound volume in the sealed cube space (1 cm close to the inner surface of the partition wall) and the sound volume outside the sealed cube space (1 cm close to the outer surface of the partition wall), and the sound insulation amount, i.e., the volume in the space-the volume outside the space, was calculated, and the test results are shown in table 6.
3. Fireproof effect: the sound-proof and fireproof concrete partition board composite materials provided by examples 1 to 23 and comparative examples 1 to 6 are poured into partition boards with the thickness of 9cm, and refer to GB 8624-: the fire-retardant performance grades of the building materials and products thereof are tested, and the fire-retardant grades of the sound-insulation fire-retardant concrete partition board composite materials provided in examples 1-23 and comparative examples 1-6 are tested, and the test results are shown in Table 6.
TABLE 6 Sound insulation Effect and fire test results
| Sample (I) | Sound insulation quantity (dB) | Fire rating |
| Example 1 | 25 | A2 |
| Example 2 | 26 | A2 |
| Example 3 | 28 | A2 |
| Example 4 | 29 | A2 |
| Example 5 | 32 | A2 |
| Example 6 | 35 | A2 |
| Example 7 | 33 | A2 |
| Example 8 | 36 | A2 |
| Example 9 | 38 | A2 |
| Example 10 | 37 | A2 |
| Example 11 | 39 | A2 |
| Example 12 | 42 | A2 |
| Example 13 | 43 | A2 |
| Example 14 | 44 | A2 |
| Example 15 | 47 | A2 |
| Example 16 | 45 | A2 |
| Example 17 | 49 | A1 |
| Example 18 | 50 | A1 |
| Example 19 | 51 | A1 |
| Example 20 | 51 | A2 |
| Example 21 | 52 | A1 |
| Examples22 | 52 | A1 |
| Example 23 | 52 | A1 |
| Comparative example 1 | 12 | A2 |
| Comparative example 2 | 13 | A2 |
| Comparative example 3 | 8 | A2 |
| Comparative example 4 | 10 | A2 |
| Comparative example 5 | 9 | A1 |
| Comparative example 6 | 3 | A1 |
The present application is described in detail below with reference to the test data provided in tables 5 and 6.
Comparing the test data of the example 1 and the comparative examples 5 to 6, the acrylic resin soundproof composite material replaces gypsum, has excellent soundproof effect and moisture-proof effect, and is not easy to crack when being used or placed in a low-temperature humid environment for a long time.
Comparing the test data of the embodiment 1 and the comparative examples 3 to 4, it can be known that the acrylic resin emulsion, the crosslinking resin, the polycarboxylate superplasticizer and other components act together to enable the acrylic resin sound-insulation composite material to have the sound-insulation effect, and the cracking resistance of the sound-insulation fireproof concrete partition board composite material in a low-temperature humid environment is improved.
Comparing the test data of the example 1 and the comparative examples 1-2, the control of the mass ratio of the acrylic resin emulsion to the cross-linking resin to the polycarboxylic acid water reducing agent to 10 (3-5) to (1-2) can improve the sound insulation effect and the cracking resistance under low-temperature and humid environment of the sound insulation fireproof concrete partition board composite material.
Comparing the test data of examples 1 to 5 of the present application, it can be seen that the acrylic resin sound-insulating composite material prepared by using the acrylic resin emulsion, the crosslinking resin and the polycarboxylic acid water reducing agent in the mass ratio of 10:4.2:1.7 has better sound-insulating effect and crack resistance under low-temperature humid environment.
Comparing the test data of examples 5 to 11 of the application, the combination of Wanna-Resin ARE 2152 and Wanna-Resin ARE 2138 as an acrylic Resin emulsion can improve the cracking resistance of the sound-proof and fireproof concrete partition board composite material in a low-temperature and humid environment; when the mass ratio of the Wanna-Resin ARE 2152 to the Wanna-Resin ARE 2138 is 1:2.6, the sound-insulation fireproof concrete partition board composite material has better cracking resistance in a low-temperature humid environment, and the sound-insulation effect is obviously improved.
Comparing the test data of examples 11 to 16 of the application, it can be seen that the VEGF scale daub and the amino resin are compounded to be used as the cross-linking resin, so that the sound insulation effect of the sound insulation fireproof concrete partition board composite material and the cracking resistance under the low-temperature humid environment are improved; the VEGF scale daub and the amino resin MR-625 are compounded, so that the sound insulation effect of the acrylic resin sound insulation composite material is further improved.
Comparing the test data of this application embodiment 15, 17-18 can know, the content of each preparation raw materials of control fire prevention concrete partition panel combined material gives sound insulation can improve fire prevention effect and the crack resistance under the low temperature humid environment of fire prevention concrete partition panel combined material gives sound insulation simultaneously. Among them, the embodiment 18 is relatively preferable in view of the combination.
Comparing the test data of the examples 18-23 of the present application, it can be seen that the compounding of magnesium hydroxide and RAYLOK 1722 not only has excellent fire resistance, but also can improve the sound insulation effect of the sound insulation fireproof concrete partition board and the crack resistance in low temperature and humid environment.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (6)
1. The sound-insulation fireproof concrete partition board composite material is characterized by comprising the following raw materials in parts by weight: 40-60 parts of Portland cement, 15-25 parts of expanded perlite, 10-20 parts of H-series silicon micro powder, 20-30 parts of acrylic resin sound-insulating composite material, 2-6 parts of flame retardant, 1-3 parts of redispersible latex powder and 50-70 parts of water; the preparation raw materials of the acrylic resin sound-insulation composite material comprise acrylic resin emulsion, cross-linking resin and a polycarboxylate superplasticizer, wherein the mass ratio of the acrylic resin emulsion to the cross-linking resin to the polycarboxylate superplasticizer is 10 (3-5) to (1-2);
the preparation steps of the acrylic resin sound insulation composite material are as follows: mixing acrylic resin emulsion, cross-linked resin and a polycarboxylic acid water reducing agent, adding the mixture into an internal mixer after uniformly stirring, mixing for 1.5h at 135 ℃, putting the mixture into a double-screw extruder, and extruding at the temperature of a machine head controlled at 150 ℃ to obtain the acrylic resin sound-insulation composite material;
the acrylic Resin emulsion is formed by mixing Wanna-Resin ARE 2152 and Wanna-Resin ARE 2138 according to the mass ratio of 1 (2-3);
the cross-linked resin is formed by mixing VEGF scale daub and amino resin according to the mass ratio of 1 (1.2-1.8).
2. The sound-insulation fireproof concrete partition board composite material as claimed in claim 1, wherein the mass ratio of the acrylic resin emulsion, the cross-linking resin and the polycarboxylate superplasticizer is 10:4.2: 1.7.
3. A sound-insulating and fire-retardant concrete partition board composite material according to claim 1, wherein the mass ratio of Wanna-Resin ARE 2152 to Wanna-Resin ARE 2138 is 1: 2.6.
4. A sound-insulating fire-retardant concrete partition board composite material according to claim 1, wherein said amino resin is MR-625 or CYMEL303 LF.
5. The sound-insulating, fire-retardant concrete partition panel composite material of any one of claims 1-4, wherein said fire retardant is selected from one or more of magnesium hydroxide, aluminum hydroxide and RAYLOK 1722.
6. The method for preparing the sound-insulating and fireproof concrete partition board composite material of claim 1, which is characterized by comprising the following steps:
mixing the silicate cement, the expanded perlite and the H-series silicon micro powder, stirring, adding the redispersible latex powder and water, stirring, adding the acrylic resin sound-insulation composite material and the flame retardant, and continuously stirring until the mixture is uniform to obtain the sound-insulation fireproof concrete partition board composite material.
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