CN103074799A - Super breathable type deep-cooling heat-insulating material and preparation method thereof - Google Patents
Super breathable type deep-cooling heat-insulating material and preparation method thereof Download PDFInfo
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- CN103074799A CN103074799A CN2013100225918A CN201310022591A CN103074799A CN 103074799 A CN103074799 A CN 103074799A CN 2013100225918 A CN2013100225918 A CN 2013100225918A CN 201310022591 A CN201310022591 A CN 201310022591A CN 103074799 A CN103074799 A CN 103074799A
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Abstract
The invention discloses a super breathable type deep-cooling heat-insulating material, which comprises alkali-free glass fibers and water spun glass fibers. A preparation method for the material comprises the steps as follows: adding the alkali-free glass fibers into white water, stirring to a suspended dispersion state, adding a mixed solution of the water spun alkali-free glass fibers and the white water, and continuing to beat; conveying formed slurry into a multi-pipe slurry distributor through a stainless steel screw pump, enabling the slurry discharged from the multi-pipe slurry distributor to enter a head box and naturally flow to a forming part so as to form a wet paper sheet, shaping the wet paper sheet through a press roll for the second time, and conveying the wet paper sheet into a natural gas tunnel type oven to obtain a rough blank; and cutting and winding the dried rough blank according to the required specification to obtain the required enhanced breathable heat-insulating material.
Description
Technical field
The present invention relates to a kind of heat-insulating material, specifically relate to the ventilative heat-insulating material of enhancement mode and this material preparation method thereof of the use in deep cooling accumulating industry.
Background technology
The use of Cryogenic Thermal Insulating Materials in deep cooling accumulating industry twined after need to be compound with aluminium foil in the prior art, at this moment just need Cryogenic Thermal Insulating Materials that certain intensity is arranged, original product tension intensity is 0.035KN/m, the situation that fracture when laminating production uses, can often occur, therefore the manpower that causes, the waste of material are very large, and Cryogenic Thermal Insulating Materials and aluminium foil compound use carry out multi-lay winding at the skin of inner barrel, after winding is finished, with outer cylinder body suit and welded seal.Be provided with vacuum orifice at outer cylinder body, internally the winding layer between the outer cylinder body vacuumizes.Because original Cryogenic Thermal Insulating Materials is more smooth, aluminium foil itself is also very smooth, thus Cryogenic Thermal Insulating Materials and aluminium foil compound after, very close to each other between them, cause that gas is difficult for extraction when vacuumizing, the required pumpdown time is longer.
Summary of the invention
For the deficiencies in the prior art, the invention provides and a kind ofly both guaranteed that original thickness was constant, and the ventilative heat-insulating material of enhancement mode and this material preparation method thereof of better tension intensity can be arranged.
For above-mentioned purpose, the present invention adopts following technical scheme to realize:
A kind of enhancement mode heat-insulating material of breathing freely according to weight percent hundred, comprises 1 ~ 10% water wire drawing alkali-free glass fibre fiber and 90% ~ 99% alkali-free glass microfiber;
Described alkali-free glass microfiber is selected: diameter is 0.4～1um, the alkali-free glass fibre in length 1～2mm scope;
Described water drawn glass fibers is selected: diameter is 1～3um, and length is the water drawn glass fibers in 2～4mm scope; Described sizing agent is water;
Prepare the ventilative heat-insulating material of aforesaid enhancement mode, its preparation method comprises the steps:
A, pulping process: the alkali-free glass microfiber is added plain boiled water, stirred 5～10 minutes through agitator, so that fiber presents the suspended dispersed state, and concentration is in 0.05%～0.1% scope, add again total concentration and be 1～10% water wire drawing alkali-free glass fibre and plain boiled water mixed liquor, continue making beating and formed slurries in 5～10 minutes;
B, moulding process: with the slurries that form among the above-mentioned steps a, be transported in the multitube pulp distributor by the stainless steel screw pump, enter flow box through multitube pulp distributor slurries out, naturally trickling forms the l Water Paper page or leaf to forming part, the l Water Paper page or leaf is carried out secondary typing 0.2～0.5s by pressure roller, control dehumidifier pressure carries out pump up water under the condition of 0.2～0.4MPa, so that the l Water Paper page or leaf moisture content that enters next step operation is in 75%～85% scope;
C, stoving process: the l Water Paper page or leaf that obtains among the step b is sent in the natural gas tunnel type baking oven, be warming up to 250 ℃ after, oven dry 2～3min, the crude green body of the ventilative heat-insulating material of the type that is enhanced;
D, splitting winding technique: with the crude green body after step c oven dry, after reaching required specification by the spacing of regulating Circular cutter, cut, the ventilative heat-insulating material of the enhancement mode after cutting by pasting the rolling of cylinder rolling mode, is namely got the ventilative heat-insulating material of required enhancement mode.
Described plain boiled water is the aqueous solution that contains dispersant, and it is the weak acid of 2.5-4.5 that described dispersant adopts the pH value;
Described polyester guipure is concaveconvex structure, and described recess thickness is 0.4mm, and described extrude depth is 0.8mm;
Described natural gas tunnel type baking oven, seven oven interior adopt the air knife type structure of blowing down suction.
In the technical scheme provided by the invention, process by the water wire drawing, in the glass fibre production process, need to have surperficial sizing agent to be coated in fiber surface, guarantee the molding effect of fiber, but surperficial sizing agent all is organic type mostly, so what we selected is with the water wire drawing enhancement mode glass fibre of water as sizing agent, adopts like this heat-insulating material of technical scheme gained provided by the invention not contain any organic matter.
In the technical scheme of the present invention, the polyester guipure is set as concaveconvex structure, and strict regulation recess thickness be 0.4mm, extrude depth is 0.8mm, this technical scheme can guarantee the ventilative heat-insulating material of the enhancement mode that forms, its structure also is concavo-convex, and salient point can contact with aluminium foil, and concave point has formed the passage of gas flow, like this so that very close to each other between the ventilative heat-insulating material of aluminium foil and enhancement mode, gas is easily extracted out when vacuumizing, and has improved operating efficiency, has saved simultaneously the energy;
In the technical scheme provided by the invention, adopt the natural gas tunnel type baking oven as drying plant, the energy that adopts because of its oven dry is natural gas, because the calorific value of natural gas is high, be warmed up to the temperature required time short, do not have organic generation, therefore can guarantee that organic matter is burnt fully in the cryogenic insulating paper, the content of organics of product is less than 0.5%.Adopt simultaneously oven interior to adopt the natural gas tunnel type baking oven of blowing down the air knife type structure of suction, can guarantee that page is close on the stainless steel guipure when move in baking oven, can not form wave, crumple, the phenomenon such as breakage.
Beneficial effect of the present invention is: after the ventilative heat-insulating material of aluminium foil and enhancement mode is compound, between very close to each other, gas is easily extracted out when vacuumizing, the required pumpdown time shortens, improved operating efficiency, saved simultaneously the energy, can not form in the whole technique that the ventilative heat-insulating material of enhancement mode waves, crumples, the phenomenon such as damaged.
The specific embodiment
Below by specific embodiment, the present invention is done detailed description:
Embodiment 1
A kind of superpower vapor-permeable type Cryogenic Thermal Insulating Materials according to weight percent hundred, comprises 1% water wire drawing alkali-free glass fibre and 99% alkali-free glass microfiber; Described water wire drawing alkali-free glass fibre is selected: diameter is 1.5um, the water wire drawing alkali-free glass fibre in the length 2mm scope; The skin of described water wire drawing alkali-free glass fibre adheres to sizing agent; Described sizing agent is water;
Described alkali-free glass microfiber is selected: diameter is 0.8um, and length is the alkali-free glass fibre in the 2mm scope;
Prepare the method for aforesaid superpower vapor-permeable type Cryogenic Thermal Insulating Materials, comprise the steps:
A, pulping process: be that 0.8 micron alkali-free glass microfiber is main raw material with fibre diameter, add simultaneously plain boiled water, stirred 5 minutes through agitator, so that fiber presents the suspended dispersed state, and concentration is in 0.05% scope, add again total concentration and be 1% water wire drawing alkali-free glass fibre and plain boiled water mixed liquor, continue making beating and formed slurries in 5 minutes; Described plain boiled water is the aqueous solution that contains dispersant, and described dispersant employing pH value is 2.5 weak acid;
B, moulding process: with the slurries that form among the above-mentioned steps a, be transported in the multitube pulp distributor by the stainless steel screw pump, enter flow box through multitube pulp distributor slurries out, naturally trickling forms the l Water Paper page or leaf to forming part, the l Water Paper page or leaf is carried out secondary typing 0.2s by pressure roller, control dehumidifier pressure carries out pump up water under the condition of 0.2MPa, so that the l Water Paper page or leaf moisture content that enters next step operation is in 75% scope; Described polyester guipure is concaveconvex structure, and described recess thickness is 0.4mm, and described extrude depth is 0.8mm;
C, stoving process: the l Water Paper page or leaf that obtains among the step b is sent in the natural gas tunnel type baking oven, be warming up to 250 ℃ after, oven dry 2min, the crude green body of the ventilative heat-insulating material of the type that is enhanced; Described natural gas tunnel type baking oven, seven oven interior adopt the air knife type structure of blowing down suction;
D, splitting winding technique: with the crude green body after step c oven dry, after reaching required specification by the spacing of regulating Circular cutter, cut, the ventilative heat-insulating material of the enhancement mode after cutting by pasting the rolling of cylinder rolling mode, is namely got the ventilative heat-insulating material of required enhancement mode;
Embodiment 2
A kind of superpower vapor-permeable type Cryogenic Thermal Insulating Materials according to weight percent hundred, comprises 10% water wire drawing alkali-free glass fibre and 90% alkali-free glass microfiber; Described water wire drawing alkali-free glass fibre is selected: diameter is 3um, the water wire drawing alkali-free glass fibre in the length 3mm scope; The skin of described water wire drawing alkali-free glass fibre adheres to sizing agent; Described sizing agent is water; Described alkali-free glass microfiber is selected: diameter is 1um, and length is the alkali-free glass fibre in the 2mm scope;
Prepare the method for aforesaid superpower vapor-permeable type Cryogenic Thermal Insulating Materials, comprise the steps:
A, pulping process: be that 1 micron alkali-free glass microfiber adds plain boiled water with fibre diameter, stirred 10 minutes through agitator, so that fiber presents the suspended dispersed state, and concentration is in 0.1% scope, add again total concentration and be 10% water wire drawing alkali-free glass fibre and plain boiled water mixed liquor, continue making beating and formed slurries in 10 minutes; Described plain boiled water is the aqueous solution that contains dispersant, and described dispersant employing pH value is 3.5 weak acid;
B, moulding process: with the slurries that form among the above-mentioned steps a, be transported in the multitube pulp distributor by the stainless steel screw pump, enter flow box through multitube pulp distributor slurries out, naturally trickling forms the l Water Paper page or leaf to forming part, the l Water Paper page or leaf is carried out secondary typing 0.5s by pressure roller, control dehumidifier pressure carries out pump up water under the condition of 0.4MPa, so that the l Water Paper page or leaf moisture content that enters next step operation is in 85% scope; Described polyester guipure is concaveconvex structure, and described recess thickness is 0.4mm, and described extrude depth is 0.8mm;
C, stoving process: the l Water Paper page or leaf that obtains among the step b is sent in the natural gas tunnel type baking oven, be warming up to 250 ℃ after, oven dry 3min, the crude green body of the ventilative heat-insulating material of the type that is enhanced; Described natural gas tunnel type baking oven, seven oven interior adopt the air knife type structure of blowing down suction;
D, splitting winding technique: with the crude green body after step c oven dry, after reaching required specification by the spacing of regulating Circular cutter, cut, the ventilative heat-insulating material of the enhancement mode after cutting by pasting the rolling of cylinder rolling mode, is namely got the ventilative heat-insulating material of required enhancement mode;
Embodiment 3
A kind of enhancement mode heat-insulating material of breathing freely according to weight percent hundred, comprises 5% water wire drawing alkali-free glass fibre and 95% alkali-free glass microfiber; Described water wire drawing alkali-free glass fibre is selected: diameter is 2um, the water wire drawing alkali-free glass fibre in the length 2.5mm scope; The skin of described water wire drawing alkali-free glass fibre adheres to sizing agent; Described sizing agent is water; Described alkali-free glass microfiber is selected: diameter is 0.6um, and length is the alkali-free glass fibre in the 1.5mm scope;
Prepare the method for the ventilative heat-insulating material of aforesaid enhancement mode, comprise the steps:
A, pulping process: be that 0.6 micron alkali-free glass microfiber adds plain boiled water with fibre diameter, stirred 8 minutes through agitator, so that fiber presents the suspended dispersed state, and concentration is in 0.08% scope, add again total concentration and be 5% alkali-free glass fibre and plain boiled water mixed liquor, continue making beating and formed slurries in 8 minutes; Described plain boiled water is the aqueous solution that contains dispersant, and described dispersant employing pH value is 3 weak acid;
B, moulding process: with the slurries that form among the above-mentioned steps a, be transported in the multitube pulp distributor by the stainless steel screw pump, enter flow box through multitube pulp distributor slurries out, naturally trickling forms the l Water Paper page or leaf to forming part, the l Water Paper page or leaf is carried out secondary typing 0.4s by pressure roller, control dehumidifier pressure carries out pump up water under the condition of 0.3MPa, so that the l Water Paper page or leaf moisture content that enters next step operation is in 80% scope; Described polyester guipure is concaveconvex structure, and described recess thickness is 0.4mm, and described extrude depth is 0.8mm;
C, stoving process: the l Water Paper page or leaf that obtains among the step b is sent in the natural gas tunnel type baking oven, be warming up to 250 ℃ after, oven dry 2.5min, the crude green body of the ventilative heat-insulating material of the type that is enhanced; Described natural gas tunnel type baking oven, seven oven interior adopt the air knife type structure of blowing down suction;
D, splitting winding technique: with the crude green body after step c oven dry, after reaching required specification by the spacing of regulating Circular cutter, cut, the ventilative heat-insulating material of the enhancement mode after cutting by pasting the rolling of cylinder rolling mode, is namely got the ventilative heat-insulating material of required enhancement mode.
Claims (6)
1. superpower vapor-permeable type Cryogenic Thermal Insulating Materials is characterized in that: according to weight percent hundred, comprise 1 ~ 10% water drawn glass fibers and 90% ~ 99% alkali-free glass microfiber;
Described alkali-free glass microfiber is selected: diameter is 0.4～1um, the alkali-free glass fibre in length 1～2mm scope;
Described water drawn glass fibers is selected: diameter is 1～3um, and length is the water drawn glass fibers in 2 ~ 4mm scope; The skin of described water drawn glass fibers adheres to sizing agent.
2. a kind of superpower vapor-permeable type Cryogenic Thermal Insulating Materials according to claim 1, it is characterized in that: described sizing agent is water.
3. preparation is such as right 1 to 2 described superpower vapor-permeable type Cryogenic Thermal Insulating Materials, and its preparation method comprises the steps:
A, pulping process: the alkali-free glass microfiber is added plain boiled water, stirred 5～10 minutes through agitator, so that fiber presents the suspended dispersed state, and concentration is in 0.05%～0.1% scope, add again total concentration and be 1～10% water wire drawing alkali-free glass fibre and plain boiled water mixed liquor, continue making beating and formed slurries in 5～10 minutes;
B, moulding process: with the slurries that form among the above-mentioned steps a, be transported in the multitube pulp distributor by the stainless steel screw pump, enter flow box through multitube pulp distributor slurries out, naturally trickling forms the l Water Paper page or leaf to forming part, the l Water Paper page or leaf is carried out secondary typing 0.2～0.5s by pressure roller, control dehumidifier pressure carries out pump up water under the condition of 0.2～0.4MPa, so that the l Water Paper page or leaf moisture content that enters next step operation is in 75%～85% scope;
C, stoving process: the l Water Paper page or leaf that obtains among the step b is sent in the natural gas tunnel type baking oven, be warming up to 250 ℃ after, oven dry 2～3min obtains the crude green body of superpower vapor-permeable type Cryogenic Thermal Insulating Materials;
D, splitting winding technique: with the crude green body after step c oven dry, after reaching required specification by the spacing of regulating Circular cutter, cut, the ventilative heat-insulating material of the enhancement mode after cutting by pasting the rolling of cylinder rolling mode, is namely got the ventilative heat-insulating material of required enhancement mode.
4. the preparation method of the ventilative heat-insulating material of a kind of enhancement mode according to claim 3, it is characterized in that: described plain boiled water is the aqueous solution that contains dispersant, it is the weak acid of 2.5-4.5 that described dispersant adopts the pH value.
5. the preparation method of the ventilative heat-insulating material of a kind of enhancement mode according to claim 3, it is characterized in that: described polyester guipure is concaveconvex structure, and described recess thickness is 0.4mm, and described extrude depth is 0.8mm.
6. the preparation method of the ventilative heat-insulating material of a kind of enhancement mode according to claim 3 is characterized in that: described natural gas tunnel type baking oven, and on adopting, seven oven interior blow down the air knife type structure of suction.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103819170A (en) * | 2014-02-18 | 2014-05-28 | 苏州隆瑞绝热材料有限公司 | Ventilating-type copious-cooling heat-insulating material and preparation method thereof |
| CN103880392A (en) * | 2014-02-18 | 2014-06-25 | 苏州隆瑞绝热材料有限公司 | High-strength cryogenic insulating material and preparation method thereof |
| CN103880393A (en) * | 2014-02-18 | 2014-06-25 | 苏州隆瑞绝热材料有限公司 | Reinforced cryogenic thermal insulation material and preparation method thereof |
| CN107268317A (en) * | 2017-08-18 | 2017-10-20 | 苏州隆瑞绝热材料有限公司 | The beating process and its production equipment of ultra-thin glass heat-insulating material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103819170A (en) * | 2014-02-18 | 2014-05-28 | 苏州隆瑞绝热材料有限公司 | Ventilating-type copious-cooling heat-insulating material and preparation method thereof |
| CN103880392A (en) * | 2014-02-18 | 2014-06-25 | 苏州隆瑞绝热材料有限公司 | High-strength cryogenic insulating material and preparation method thereof |
| CN103880393A (en) * | 2014-02-18 | 2014-06-25 | 苏州隆瑞绝热材料有限公司 | Reinforced cryogenic thermal insulation material and preparation method thereof |
| CN107268317A (en) * | 2017-08-18 | 2017-10-20 | 苏州隆瑞绝热材料有限公司 | The beating process and its production equipment of ultra-thin glass heat-insulating material |
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