CN109912286A - A kind of dry floor heating module and preparation method thereof - Google Patents
A kind of dry floor heating module and preparation method thereof Download PDFInfo
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- CN109912286A CN109912286A CN201910001715.1A CN201910001715A CN109912286A CN 109912286 A CN109912286 A CN 109912286A CN 201910001715 A CN201910001715 A CN 201910001715A CN 109912286 A CN109912286 A CN 109912286A
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Abstract
The invention discloses a kind of dry floor heating modules and preparation method thereof.The preparation method includes the following steps: for the feedstock composition after premixing to be pressed and molded；Wherein, feedstock composition includes: siliceous object, binder, granules of polystyrene and water；Binder includes calcium oxide and/or calcium hydroxide；Siliceous object, binder, granules of polystyrene and water mass ratio be (60-80): (17-28): (5-8): (20-60)；The process of compression molding includes pressurization, pressure maintaining, heating and curing molding, and the pressure after pressurization is 0.3-5MPa, and the temperature of heating is 100-150 DEG C.Dry floor heating module finished product tensile strength produced by the present invention is high (0.20MPa or more), compression strength height (0.3MPa or more), thermal coefficient is low (at 25 DEG C, 0.055W/ (mk) is below), volume water absorption rate is low, A2 grades of fire protecting performance, safety is higher.
Description
Technical field
The present invention relates to a kind of dry floor heating modules and preparation method thereof.
Background technique
Floor heating is the abbreviation of ground radiation heating, according to the dry floor heating that warms up with being divided into wet type on paving structure.Wet type
Warm is traditional floor heating, and flooring mode is successively to be laid with damp-proof layer, insulation board, steel wire, pipeline, bail on ground, then use
It is levelling after concrete casting, it constructs cumbersome and long in time limit；Dry floor heating module is a kind of new-type floor heating occurred in recent years, i.e.,
The cement casting link in wet process is saved, is shortened the construction period.
There are mainly two types of forms for current dry floor heating module:
(1) one is the cystosepiments for the plate for offering water pipe groove, this product is more convenient than wet type floor heating installation,
But also there is certain disadvantage.Cystosepiment matter is soft, and load-bearing capacity is insufficient, and can not fix between foam plate and block, plastic conduit
When bending generation elastic stress is larger, it may occur that the situations such as cystosepiment tilting increase and are laid with difficulty.
(2) one is polystyrene foam particles, and floor heating mushroom plate is made.This kind of floor heating module solves card pipe and is fixed on
The problem of module and intermodule can not splice, but since material used is polystyrene foam particle, and due to moulding,
Bearing capacity is inadequate, easily there is mushroom head conquassation phenomenon in construction and use.
In addition for both dry floor heating modules due to material therefor, fire-protection rating is fire retardant (fire-protection rating B
Grade), it can not accomplish non-ignitable (A grades of fire-protection rating), there are great hidden danger for safety.
Summary of the invention
The technical problem to be solved by the present invention is to the bearing capacities in order to overcome dry floor heating module product in the prior art
It is insufficient, thermal insulation property is not high, fire-protection rating is not high, safety the defects of there are hidden danger, provide a kind of dry floor heating module and its
Preparation method.Dry floor heating module finished product tensile strength of the invention is high (0.20MPa or more), and it is strong to provide enough tensions
Degree avoids the elastic stress that pipe bending generates when card pipe；Compression strength height (0.3MPa or more), realizes higher bearing capacity solution
Certainly construction and using when there are problems that product conquassation；Thermal coefficient is low (at 25 DEG C, 0.055W/ (mk) is below), provides
Effective thermal insulation property；The volume water absorption rate of product is below 5.5%；And (fire-protection rating is not with non-ignitable fire protecting performance
Lower than A2 grades), safety is higher, prevents flammability issues.
The present invention solves above-mentioned technical problem by the following technical programs.
The present invention provides a kind of preparation methods of dry floor heating module comprising following step:
Feedstock composition after premixing is pressed and molded；
Wherein, the feedstock composition includes: siliceous object, binder, granules of polystyrene and water, the binder packet
Include calcium oxide and/or calcium hydroxide；The siliceous object, the binder, the granules of polystyrene and the water mass ratio
For (60-80): (17-28): (5-8): (20-60)；
The process of the compression molding includes pressurization, and pressure maintaining, heating and curing molding, the pressure after the pressurization are
0.3-5MPa, the temperature of the heating are 100-150 DEG C.
In the present invention, the operation of the premixing and parameter are this field routine, are preferably carried out in the steps below:
At 10-30 DEG C after mixing by the siliceous object, the binder and the water, it is mixed that the granules of polystyrene is added
It closes uniform.
In the present invention, the feedstock composition preferably may also include additive.The additive is that this field routinely makes
Additive, for example, the additive includes water-reducing agent, waterproofing agent, redispersable latex powder, cellulose ether, graphite and hair
Infusion.
It is described siliceous when the feedstock composition also includes the water-reducing agent and the cellulose ether in the present invention
Object, the binder, the granules of polystyrene, the water, the water-reducing agent and the cellulose ether mass ratio preferably
For (60-80): (17-28): (5-8): (20-60): (1-2): (0.1- 0.5) is more preferably (70-75): (18-19): (7-
7.5): (25-30): (1.5-2): (0.2-0.3).
In the present invention, in the feedstock composition, the granules of polystyrene, the cellulose ether and the water-reducing agent
Quality sum and the ratio of quality sum of the SILICA FUME and the binder be preferably (7-10): (90-93), more preferably
Ground is (8-9): (91-92).
In the present invention, the mass ratio of the siliceous object and the binder is preferably (7-8): (2-3).
In the present invention, the siliceous object is silicoide commonly used in the art, and the siliceous object includes that activated silica is micro-
One of powder, SILICA FUME, slag micropowder, flyash, silica flour, kaolin, bentonite, waterglass and diatomite are a variety of.
In the present invention, the granules of polystyrene preferably can also be the graphite granules of polystyrene containing graphite.
In the present invention, the mold used that is pressed and molded can be this field routine, for example, the vertical height of the mold
Degree can be adjusted under pressurized state, the height until reaching setting.The mold can be also special-shaped mould, can set as needed
Different shapes is counted, such as the mold can be the mold with card pipe functional structure.
It is more preferably 28-38% preferably, compressing 17-44% in vertical direction after the pressurization in the present invention.
In the present invention, the temperature of the heating is preferably 110-140 DEG C, is more preferably 120-130 DEG C.
In the present invention, the time of the heating can be the heating time of this field routine, may be, for example, 35min or more, also
It can be 35-60min.
In the present invention, cooling, depanning, maintenance and membrane can be also carried out after the curing molding.
Wherein, also slot treatment can be carried out to the dry floor heating module as needed after the maintenance.
The present invention also provides one kind dry floor heating modules as made from above-mentioned preparation method.
In the present invention, the thermal coefficient of the dry floor heating module is preferably 0.055W/ (mk) below；It is described dry
The compression strength of formula floor heating module is preferably 0.3Mpa or more；The tensile strength of the dry floor heating module is preferably
0.2Mpa or more；The fire protecting performance of the dry floor heating module is preferably A2 grades or more.
In the present invention, preferably, the surface of the dry floor heating module has protrusion or groove, to fixedly warm heat
Matchmaker's (such as floor heating pipe, heating cable)；The protrusion or groove can select as needed corresponding mold to obtain, can also
Slot treatment is carried out to the dry floor heating module as needed.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get the present invention it is each preferably
Example.
The reagents and materials used in the present invention are commercially available.
The positive effect of the present invention is that:
Dry floor heating module finished product tensile strength of the invention is high (0.20MPa or more), can provide enough tensile strength
Avoid the elastic stress that pipe bending generates when card pipe；Compression strength height (0.3MPa or more) realizes that higher bearing capacity solves
Construction and using when there are problems that product conquassation；Thermal coefficient is low (at 25 DEG C, 0.055W/ (mk) is below), is provided with
The thermal insulation property of effect；The volume water absorption rate of product is below 5.5%；And (fire-protection rating is not less than with non-ignitable fire protecting performance
A2 grades), safety is higher, prevents flammability issues.
Detailed description of the invention
Fig. 1 is the bottom view of the upper mold of mold in the embodiment of the present invention 15.
Fig. 2 is the top view of the lower mold of mold in the embodiment of the present invention 15.
Fig. 3 is the sectional view of the lower mold of mold in the embodiment of the present invention 15.
Appended drawing reference:
Upper mold 1
Lower mold 2
Lower layer's lug boss 3
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but is not therefore limited the present invention to described
Among scope of embodiments.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or presses
It is selected according to product manual.
The material that each embodiment of the present invention uses is described as follows:
Active SILICA FUME: 1250 mesh (also known as silicon ash) are purchased from the sharp industry development Co., Ltd of Shanghai Wei Te；
Calcium oxide: also known as quick lime is purchased from Taicang east metallurgy lime products factory；
Water-reducing agent: HF efficient retarding and water reducing agent is purchased from Shanghai Dong great Chemical Co., Ltd.；
Cellulose ether: it is purchased from Ou Jin chemical industry；
Granules of polystyrene: it is purchased from Wuxi Xingda New Foam Plastic Materials Co., Ltd..
The feedstock composition and dosage of the dry floor heating module of embodiment 1-5 and comparative example 1-4 see the table below 1.
Table 1
Note: in table 1, the quality sum of granules of polystyrene, cellulose ether and water-reducing agent that A refers to, micro- silicon that B refers to
The quality sum of powder and calcium oxide；C refers to the quality of calcium oxide, and D refers to the quality of SILICA FUME.
The preparation process of the dry floor heating module of embodiment 1,2,4 and 5 and comparative example 1-4 is as follows:
(mixing time root is mixed evenly in water, SILICA FUME, calcium oxide, cellulose ether and water-reducing agent at 30 DEG C
Adjusted accordingly according to temperature change, blender revolving speed is set as 300 revs/min), stir evenly its whole as premixing
Cementitious material.Then granules of polystyrene is added, starts and is put into premixing gel rubber material after blender and is mixed, sufficiently
Mix it uniformly.By multiple repetition test, speed of agitator need to be set in 100 revs/min, stir 5 minutes, revolving speed is too fast
Or mixing time it is too long can make granules of polystyrene shrink, deformation.It can be separately added according to the adjustment of the bulk density of customer demand poly-
Styrene materials bulk density.
Again by (mold vertical height can be adjusted under pressurized state, until reaching in the mixture input mold after stirring
The height of setting), feedstock composition compresses 35% molding in vertical direction, and keeps pressure, and the pressure after pressurization is
0.3MPa.The mold of input feedstock composition and pressure maintaining is heated at 130 DEG C.Heating dress is closed after heating 35 minutes
It sets and is allowed to cool depanning, conserve.The caliber specification of the card water pipe according to needed for floor heating is slotted.Membrane after grooving.
The preparation process of the dry floor heating module of embodiment 3 is as follows:
Water, SILICA FUME, calcium oxide be mixed evenly to (mixing time carries out corresponding according to temperature change at 30 DEG C
Adjustment, blender revolving speed are set as 300 revs/min), stir evenly its whole as premixing cementitious material.Then it is added poly-
Styrene pellets start and are put into premixing gel rubber material after blender and are mixed, sufficiently mix it uniformly.Through excessive
Secondary repetition test, speed of agitator need to be set in 100 revs/min, stir 5 minutes, revolving speed is too fast or mixing time is too long can make to gather
Styrene pellets shrink, deform.Polystyrene material bulk density be added can be separately adjusted according to the bulk density of customer demand.
Again by (mold vertical height can be adjusted under pressurized state, until reaching in the mixture input mold after stirring
The height of setting), feedstock composition compresses 35% molding in vertical direction, and keeps pressure, and the pressure after pressurization is
0.3MPa.The mold of input feedstock composition and pressure maintaining is heated at 130 DEG C.Heating dress is closed after heating 35 minutes
It sets and is allowed to cool depanning, conserve.The caliber specification of the card water pipe according to needed for floor heating is slotted.Membrane after grooving.
Effect example 1
Performance detection is carried out for sample made from above-described embodiment 1-5 and comparative example 1-4.Examination criteria is as follows: according to
GB/T 5486-2008 " inorganic hard insulating product test method " tests compression strength, according to GB/T 29906-2013 " mould
Mould exterior insulation system for polyphenyl plate thin plastering exterior wall material " test perpendicular to plate face tensile strength, according to GB 8624-2012
" construction material and classification of combustion properties of building materials and products " tests combustibility rank, according to " the insulation molding polyphenyl of GB/T 10801.1
Vinylic foam " test bending deformation, it is absorbed water according to GB/T 1034-2008 " measurement of plastic ink absorption " test volume
Rate.Testing result see the table below 2.
Table 2
Embodiment 6-14
Parameter in the preparation process of the dry floor heating module of embodiment 6-14 see the table below 3, feedstock composition and embodiment
1 is identical, remaining operation is same as Example 1.
Table 3
Effect example 2
Performance detection is carried out for sample made from above-described embodiment 6-14, testing result see the table below 4.Wherein, bending resistance lotus
Load, impact strength, elasticity modulus are tested using universal testing machine.
Table 4
Comparative example 5-15
Parameter in the preparation process of the dry floor heating module of comparative example 5-15 see the table below 5, feedstock composition and embodiment
1 is identical, remaining operation is same as Example 1.
Table 5
Effect example 3
Performance detection is carried out for sample made from comparative example 5-15, testing result see the table below 6.
Table 6
Embodiment 15
Mold as shown in Figs. 1-3 is used in the present embodiment, feedstock composition is same as Example 1, and preparation method is such as
Under:
(mixing time root is mixed evenly in water, SILICA FUME, calcium oxide, cellulose ether and water-reducing agent at 30 DEG C
Adjusted accordingly according to temperature change, blender revolving speed is set as 300 revs/min), stir evenly its whole as premixing
Cementitious material.Then granules of polystyrene is added, starts and is put into premixing gel rubber material after blender and is mixed, sufficiently
Mix it uniformly.By multiple repetition test, speed of agitator need to be set in 100 revs/min, stir 5 minutes, revolving speed is too fast
Or mixing time it is too long can make granules of polystyrene shrink, deformation.It can be separately added according to the adjustment of the bulk density of customer demand poly-
Styrene materials bulk density.
Again by (mold vertical height can be adjusted under pressurized state, until reaching in the mixture input mold after stirring
The height of setting), feedstock composition compresses 28% molding in vertical direction, and keeps pressure, and the pressure after pressurization is
0.3MPa.The mold of input feedstock composition and pressure maintaining is heated at 130 DEG C.Heating dress is closed in heating after sixty minutes
It sets and is allowed to cool depanning, conserve, later membrane.
The present embodiment is due to having used mold as shown in Figs. 1-3, and wherein upper mold 1 makes dry floor heating obtained
The upper surface of module is complete plane, and lower layer's lug boss 3 in lower mold 2 makes the following table of dry floor heating module obtained
Face forms groove corresponding with lower layer's lug boss 3.
The properties of dry floor heating module made from the present embodiment are close with embodiment 1.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that this is only
For example, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
Under the premise of the principle and substance of the present invention, many changes and modifications may be made, but these change and
Modification each falls within protection scope of the present invention.
Claims (10)
1. a kind of preparation method of dry floor heating module, which is characterized in that it includes the following steps:
Feedstock composition after premixing is pressed and molded；
Wherein, the feedstock composition includes: siliceous object, binder, granules of polystyrene and water；The binder includes oxidation
Calcium and/or calcium hydroxide；The siliceous object, the binder, the granules of polystyrene and the water mass ratio be (60-
80): (17-28): (5-8): (20-60)；
The process of the compression molding includes pressurization, pressure maintaining, heating and curing molding, and the pressure after the pressurization is 0.3-
5MPa, the temperature of the heating are 100-150 DEG C.
2. preparation method as described in claim 1, which is characterized in that the premixing includes the following steps: at 10-30 DEG C
After mixing by the siliceous object, the binder and the water, the granules of polystyrene is added to be uniformly mixed.
3. preparation method as described in claim 1, which is characterized in that the feedstock composition further includes additive；It is described to add
Agent is added to be preferably comprised water-reducing agent, waterproofing agent, redispersable latex powder, cellulose ether, graphite and foaming agent.
4. preparation method as claimed in claim 3, which is characterized in that when the feedstock composition includes the water-reducing agent and institute
When stating cellulose ether, the siliceous object, the binder, the granules of polystyrene, the water, the water-reducing agent and the fibre
The mass ratio for tieing up plain ether is (60-80): (17-28): (5-8): (20-60): (1-2): (0.1-0.5), preferably (70-
75): (18-19): (7-7.5): (25-30): (1.5-2): (0.2-0.3).
5. preparation method as claimed in claim 4, which is characterized in that the granules of polystyrene, the cellulose ether and institute
The ratio for stating the quality sum of water-reducing agent and the quality sum of the SILICA FUME and the binder is (7-10): (90-93), preferably
Ground is (8-9): (91-92).
6. preparation method as described in claim 1, which is characterized in that the mass ratio of the siliceous object and the binder is
(7-8): (2-3)；
And/or the siliceous object includes active micro silicon powder, SILICA FUME, slag micropowder, flyash, silica flour, kaolin, swelling
One of soil, waterglass and diatomite are a variety of；
And/or the granules of polystyrene is the graphite granules of polystyrene containing graphite.
7. preparation method as described in claim 1, which is characterized in that compress 17- in vertical direction after the pressurization
44%；
And/or the temperature of the heating is 110-140 DEG C；
And/or the time of the heating is 35min or more；
And/or cooling, depanning, maintenance and membrane are carried out after the curing molding.
8. preparation method as described in claim 1, which is characterized in that compress 28- in vertical direction after the pressurization
38%；
And/or the temperature of the heating is 120-130 DEG C；
And/or the time of the heating is 35-60min.
9. a kind of dry floor heating module as made from preparation method of any of claims 1-8.
10. dry floor heating module as claimed in claim 9, which is characterized in that the thermal coefficient of the dry floor heating module is
0.055W/ (mk) is below；
And/or the compression strength of the dry floor heating module is 0.3Mpa or more；
And/or the tensile strength of the dry floor heating module is 0.2Mpa or more；
And/or the fire protecting performance of the dry floor heating module is A2 grades or more；
And/or the surface of the dry floor heating module has protrusion or groove.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111170675A (en) * | 2020-02-10 | 2020-05-19 | 上海圣奎塑业有限公司 | Building floor fireproof heat-insulation material and manufacturing process thereof |
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