CN106013481A - Heat preservation board with excellent heat shielding properties for negative pressure wheel casing room - Google Patents

Heat preservation board with excellent heat shielding properties for negative pressure wheel casing room Download PDF

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Publication number
CN106013481A
CN106013481A CN201610319575.9A CN201610319575A CN106013481A CN 106013481 A CN106013481 A CN 106013481A CN 201610319575 A CN201610319575 A CN 201610319575A CN 106013481 A CN106013481 A CN 106013481A
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Prior art keywords
heat
negative pressure
pressure wheel
warming plate
molecular weight
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CN201610319575.9A
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Chinese (zh)
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CN106013481B (en
Inventor
黄宏坤
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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    • C08G18/3206—Polyhydroxy compounds aliphatic
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  • Polyurethanes Or Polyureas (AREA)
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  • Building Environments (AREA)

Abstract

The invention provides a heat preservation board with excellent heat shielding properties for a negative pressure wheel casing room. The heat preservation board comprises a frame body, wherein an outer heat shielding layer, a core heat preservation layer and an inner heat shielding layer are sequentially arranged in the frame body from bottom to top; a heat shielding coating is arranged on the outer wall of the frame body; aerated concrete is stuffed in the outer heat shielding layer; perlite-hard polyurethane foam plastic composite heat preservation materials are stuffed in the core heat shielding layer; and silicon dioxide aerogel is stuffed in the inner heat shielding layer. The composite heat preservation material provided by the invention is simple in preparation technology, low in cost, good in flame resistance and good in heat preservation effect.

Description

The negative pressure wheel cover room warming plate that a kind of heat-proof quality is excellent
Technical field
The present invention relates to the negative pressure wheel cover room warming plate that a kind of heat-proof quality is excellent, belong to material science.
Background technology
In recent years, utilizing wall thermal insulating to realize building energy conservation and be the most increasingly taken seriously, country also has begun to pressure and executes Row Research on Energy Saving, the insulation material of large-scale use mainly has EPS (polystyrene foam), PS (extrusion molding currently on the market Polystyrene foam) and PU (polyurethane foam).The advantage of this type of organic insulation material maximum is light weight, heat insulation, insulation, but Big defect is easy firing, the most aging, fire savety is poor, not hidden through fire that flame treatment is the most serious Suffer from, cause Fire Accidents for Buildings.Hard polyurethane foam is a kind of inflammable organic insulation material, and discharging when burning substantial amounts of has Poisonous gas and smog, cause serious threat to the security of the lives and property of people, therefore, if solution that can not be effective, practical Its inflammable fire safety sex chromosome mosaicism, then RPUF just cannot obtain in China's building energy conservation on a large scale Popularization and application.
The problems such as heat-resisting, the fire protection flame retarding of RPUF become important topic in the urgent need to address, are It is related to one of RPUF key factor that can continue development.How to improve the resistance to of existing hard polyurethane foam Hot and improve the research of its anti-flammability and large-scale popularization and application have become present stage and needed the major issue of solution badly.
Summary of the invention
Goal of the invention: it is an object of the invention to provide that a kind of fire resistance is good, the heat-proof quality of high insulating effect is excellent Negative pressure wheel cover room warming plate.
Technical scheme: the negative pressure wheel cover room warming plate that a kind of heat-proof quality that the present invention provides is excellent, including framework, framework The outer thermal insulation layer that sets gradually the most from bottom to top, core thermal insulation layer, inner insulating layer, framework outer wall is provided with heat insulating coat；The most heat insulation Air entrained concrete is filled in layer；Perlite-RPUF compound insulating material is filled in described core thermal insulation layer； Aerosil is filled in described inner insulating layer.
As preferably, modified pearl rock-RPUF compound insulating material, by the component of following weight portion Make:
As further preferably, described modified pearl rock uses following methods to prepare:
(1) decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.008～0.012mol/L prepared In, after carrying out Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
(2) perlite is added in the decamethylene diamine solution of Partial protons, be placed in 50～60 DEG C of oil baths, use electric stirring Machine stirs 2～4 hours, and rotating speed is 1500～2500r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g:100ml；
(3) sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock.
Preferred as another kind, described PEPA is PCDL or the molecular weight of molecular weight 400-5000 Aromatic Polyester Polyols for 600-2000.
Preferred as another kind, described polyether polyol be molecular weight be 500-2000 aromatic amine polyether polyol or Molecular weight is the glucitols polyether polyol of 500-2000.
Preferred as another kind, the low molecular weight compound of described hydroxyl is ethylene glycol.
Preferred as another kind, described composite catalyst be the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(two Methyaminomethyl) phenol and the mixture of dibutyltin dilaurate；Described fire retardant is the miscellaneous-10-of 9,10-dihydro-9-oxy Phospha phenanthryl-4-salicylic alcohol.
Preferred as another kind, described modified Nano magnesium hydroxide is through silane resin acceptor kh-550 by nano-sized magnesium hydroxide Wet-process modified prepared.
Present invention also offers the preparation of above-mentioned a kind of modified pearl rock-RPUF compound insulating material Method, comprises the following steps:
(1) preparation of modified pearl rock:
The decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.008～0.012mol/L prepared, After carrying out Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
Perlite is added in the decamethylene diamine solution of Partial protons, be placed in 50～60 DEG C of oil baths, use electric blender Stirring 2～4 hours, rotating speed is 1500～2500r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g:100ml；
Sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock；
(2) preparation of compound insulating material: PEPA and polyether polyol are heated to 100-120 DEG C, mixing, cold But to 70-80 DEG C, just batch mixing is obtained；By the low molecular weight compound of hydroxyl, modified aluminum trihydroxide, foaming agent, organosilicon After foam stabiliser, microcrystalline Cellulose, composite catalyst, foaming agent, fire retardant are added to the water mixing, add to first batch mixing, Mixing；Add modified pearl rock stirring 10-20min, be eventually adding isocyanuric acid three-glycidyl ester, stir 1-3h；Cooling, Obtain.
Beneficial effect: the compound insulating material preparation technology that the present invention provides is simple, with low cost, fire resistance is good, guarantor Temp effect is good.
Detailed description of the invention
According to following embodiment, the present invention be may be better understood.But, as it will be easily appreciated by one skilled in the art that reality Execute concrete material proportion, process conditions and result thereof described by example and be merely to illustrate the present invention, and should also will not limit The present invention described in detail in claims processed.
Embodiment 1
The preparation of modified pearl rock, employing following methods:
(1) decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.010mol/L prepared, carries out After Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
(2) perlite is added in the decamethylene diamine solution of Partial protons, be placed in 55 DEG C of oil baths, stir by electric blender Mixing 3 hours, rotating speed is 2000r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g:100ml；
(3) sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock.
Embodiment 2
The preparation of modified pearl rock, employing following methods:
(1) decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.008mol/L prepared, carries out After Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
(2) perlite is added in the decamethylene diamine solution of Partial protons, be placed in 50 DEG C of oil baths, stir by electric blender Mixing 4 hours, rotating speed is 1500r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g:100ml；
(3) sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock.
Embodiment 3
The preparation of modified pearl rock, employing following methods:
(1) decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.012mol/L prepared, carries out After Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
(2) perlite is added in the decamethylene diamine solution of Partial protons, be placed in 60 DEG C of oil baths, stir by electric blender Mixing 2 hours, rotating speed is 2500r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g:100ml；
(3) sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock.
Embodiment 4
Modified pearl rock-RPUF compound insulating material, is made up of the component of following weight portion:
Wherein, the PCDL of molecular weight 400；Molecular weight is the aromatic amine polyether polyol of 2000；Described Composite catalyst is the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(dimethylamino methyl) phenol and dibutyl tin two The mixture of laurate；Described fire retardant is 9,10-dihydro-9-oxy miscellaneous-10-phospha phenanthryl-4-salicylic alcohol；Described change Property nano-sized magnesium hydroxide be by nano-sized magnesium hydroxide through silane resin acceptor kh-550 wet-process modified prepare.
The preparation of above-mentioned modified pearl rock-RPUF compound insulating material, comprises the following steps:
PEPA and polyether polyol are heated to 110 DEG C, mixing, it is cooled to 75 DEG C, obtains just batch mixing；By hydroxyl Low molecular weight compound, modified aluminum trihydroxide, foaming agent, organic foam stabilizer, microcrystalline Cellulose, composite catalyzing After agent, foaming agent, fire retardant are added to the water mixing, add to first batch mixing, mixing；Add modified pearl rock stirring 15min, It is eventually adding isocyanuric acid three-glycidyl ester, stirs 2h；Cooling, to obtain final product.
Embodiment 5
Modified pearl rock-RPUF compound insulating material, is made up of the component of following weight portion:
Wherein, the PCDL of molecular weight 5000；Molecular weight is the aromatic amine polyether polyol of 2000；Described Composite catalyst is the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(dimethylamino methyl) phenol and dibutyl tin two The mixture of laurate；Described fire retardant is 9,10-dihydro-9-oxy miscellaneous-10-phospha phenanthryl-4-salicylic alcohol；Described change Property nano-sized magnesium hydroxide be by nano-sized magnesium hydroxide through silane resin acceptor kh-550 wet-process modified prepare.
The preparation of above-mentioned modified pearl rock-RPUF compound insulating material, comprises the following steps:
PEPA and polyether polyol are heated to 100 DEG C, mixing, it is cooled to 70 DEG C, obtains just batch mixing；By hydroxyl Low molecular weight compound, modified aluminum trihydroxide, foaming agent, organic foam stabilizer, microcrystalline Cellulose, composite catalyzing After agent, foaming agent, fire retardant are added to the water mixing, add to first batch mixing, mixing；Add modified pearl rock stirring 10min, It is eventually adding isocyanuric acid three-glycidyl ester, stirs 3h；Cooling, to obtain final product.
Embodiment 6
Modified pearl rock-RPUF compound insulating material, is made up of the component of following weight portion:
Wherein, molecular weight is the Aromatic Polyester Polyols of 600；Molecular weight is the glucitols polyether polyol of 2000；Institute Stating composite catalyst is the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(dimethylamino methyl) phenol and dibutyl tin The mixture of dilaurate；Described fire retardant is 9,10-dihydro-9-oxy miscellaneous-10-phospha phenanthryl-4-salicylic alcohol；Described Modified Nano magnesium hydroxide is wet-process modified prepared through silane resin acceptor kh-550 by nano-sized magnesium hydroxide.
The preparation of above-mentioned modified pearl rock-RPUF compound insulating material, comprises the following steps:
PEPA and polyether polyol are heated to 120 DEG C, mixing, it is cooled to 80 DEG C, obtains just batch mixing；By hydroxyl Low molecular weight compound, modified aluminum trihydroxide, foaming agent, organic foam stabilizer, microcrystalline Cellulose, composite catalyzing After agent, foaming agent, fire retardant are added to the water mixing, add to first batch mixing, mixing；Add modified pearl rock stirring 20min, It is eventually adding isocyanuric acid three-glycidyl ester, stirs 1h；Cooling, to obtain final product.
Embodiment 7
Modified pearl rock-RPUF compound insulating material, is made up of the component of following weight portion:
Wherein, molecular weight is the Aromatic Polyester Polyols of 2000；Molecular weight is the glucitols polyether polyol of 500；Institute Stating composite catalyst is the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(dimethylamino methyl) phenol and dibutyl tin The mixture of dilaurate；Described fire retardant is 9,10-dihydro-9-oxy miscellaneous-10-phospha phenanthryl-4-salicylic alcohol；Described Modified Nano magnesium hydroxide is wet-process modified prepared through silane resin acceptor kh-550 by nano-sized magnesium hydroxide.
The preparation of above-mentioned modified pearl rock-RPUF compound insulating material, comprises the following steps:
PEPA and polyether polyol are heated to 115 DEG C, mixing, it is cooled to 75 DEG C, obtains just batch mixing；By hydroxyl Low molecular weight compound, modified aluminum trihydroxide, foaming agent, organic foam stabilizer, microcrystalline Cellulose, composite catalyzing After agent, foaming agent, fire retardant are added to the water mixing, add to first batch mixing, mixing；Add modified pearl rock stirring 15min, It is eventually adding isocyanuric acid three-glycidyl ester, stirs 2h；Cooling, to obtain final product.
The performance of testing example 4 to 7.
Table 1
Wherein, comparative example is commercially available RPUF.
As seen from the above table, product of the present invention has higher compressive strength, abscess is fine and smooth, have relatively low heat conduction system Fire resistance several, foam is good.
Embodiment 8
The negative pressure wheel cover room warming plate that heat-proof quality is excellent, is shown in Fig. 1, including framework 1, sets the most successively in framework 1 The outer thermal insulation layer 2 put, core thermal insulation layer 3, inner insulating layer 4, framework 1 outer wall is provided with heat insulating coat 5；Fill in outer thermal insulation layer 2 and add Gas concrete；Filling-modified perlite-RPUF compound insulating material in core thermal insulation layer 3；Inner insulating layer 4 Interior filling aerosil.
The warming plate of embodiment 8 is combined into the cube of length of side 1m, heats inside cube so that it is inside reaches 100 ℃；Comparative example is that the modified pearl rock-RPUF compound insulating material in core thermal insulation layer is replaced with city Sell RPUF.Test surfaces temperature, the warming plate of the present invention prepare cubical surface temperature compared to Comparative example is low more than 50 DEG C.

Claims (8)

1. the negative pressure wheel cover room warming plate that a heat-proof quality is excellent, it is characterised in that: include framework (1), in framework (1) under The outer thermal insulation layer (2) that sets gradually on and, core thermal insulation layer (3), inner insulating layer (4), framework (1) outer wall is provided with heat insulating coat (5)；Air entrained concrete is filled in outer thermal insulation layer (2)；Perlite-hard polyurethane foams is filled in described core thermal insulation layer (3) Plastics composite insulating material；Aerosil is filled in described inner insulating layer (4).
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that: by following The component of weight portion is made:
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that change described in: Property perlite use following methods prepare:
(1) decamethylene diamine of excess is dissolved in the hydrochloric acid that substance withdrawl syndrome is 0.008～0.012mol/L prepared, enters After row Partial protons, decamethylene diamine is melted into the one end ammonia salt still with active-NH2 group by Partial protons；
(2) perlite is added in the decamethylene diamine solution of Partial protons, be placed in 50～60 DEG C of oil baths, stir by electric blender Mixing 2～4 hours, rotating speed is 1500～2500r/min；The amount ratio of the decamethylene diamine solution of perlite and Partial protons is 10g: 100ml；
(3) sucking filtration, filter cake distilled water cleans 3～4 times, dries, and grinds, sieves, obtain modified pearl rock.
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that: described poly- Ester polyol is the PCDL of molecular weight 400-5000 or molecular weight is the Aromatic Polyester Polyols of 600-2000.
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that: described poly- Ethoxylated polyhydric alcohol is that molecular weight is the aromatic amine polyether polyol of 500-2000 or sorbitol that molecular weight is 500-2000 is birdsed of the same feather flock together Ethoxylated polyhydric alcohol.
A kind of modified pearl rock-RPUF compound insulating material the most according to claim 1, its feature It is: the low molecular weight compound of described hydroxyl is ethylene glycol.
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that: described multiple Closing catalyst is the triethylenediamine of mass ratio 3:2:1,2,4,6-tri-(dimethylamino methyl) phenol and dibutyltindilaurylmercaptide The mixture of cinnamic acid ester；Described fire retardant is 9,10-dihydro-9-oxy miscellaneous-10-phospha phenanthryl-4-salicylic alcohol.
The negative pressure wheel cover room warming plate that a kind of heat-proof quality the most according to claim 1 is excellent, it is characterised in that change described in: Property nano-sized magnesium hydroxide be by nano-sized magnesium hydroxide through silane resin acceptor kh-550 wet-process modified prepare.
CN201610319575.9A 2016-01-30 2016-05-13 A kind of negative pressure wheel cover room thermal insulation board that heat-proof quality is excellent Expired - Fee Related CN106013481B (en)

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