CN103880392A - High-strength cryogenic insulating material and preparation method thereof - Google Patents
High-strength cryogenic insulating material and preparation method thereof Download PDFInfo
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- CN103880392A CN103880392A CN201410054367.1A CN201410054367A CN103880392A CN 103880392 A CN103880392 A CN 103880392A CN 201410054367 A CN201410054367 A CN 201410054367A CN 103880392 A CN103880392 A CN 103880392A
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- insulating materials
- thermal insulating
- alkali glass
- primitive fiber
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Abstract
The invention discloses a high-strength cryogenic insulating material and a preparation method thereof. The high-strength cryogenic insulating material is characterized by comprising non-alkali glass microfiber and glass fiber short shred, wherein the diameter of the non-alkali glass microfiber is 0.4-1 micron and the length of the non-alkali glass microfiber is 1-2 microns; the diameter of the glass fiber short shred is 3-5 microns and the length of the glass fiber short shred is 2-4 microns. The preparation method of the high-strength cryogenic insulating material comprises the steps of pulping, molding, drying, cutting and winding. According to the high-strength cryogenic insulating material, the glass fiber short shred is added in the non-alkali glass microfiber, so that the strength of the material can be effectively increased and the market demand is met.
Description
Technical field
The present invention relates to a kind of high strength Cryogenic Thermal Insulating Materials and preparation method thereof.
Background technology
In prior art, the use of Cryogenic Thermal Insulating Materials in deep cooling accumulating industry is wound around after need to be compound with aluminium foil, at this moment just need Cryogenic Thermal Insulating Materials to have certain intensity, original product tension intensity is 0.035KN/m, in the time that using, laminating production can often there is the situation of fracture, therefore the manpower causing, the waste of material are very large, and therefore producing a kind of high-intensity Cryogenic Thermal Insulating Materials is Cryogenic Thermal Insulating Materials market problem to be solved.
Summary of the invention
Goal of the invention: the object of the invention is in order to overcome the deficiencies in the prior art, provide one can effectively improve intensity, make the not Cryogenic Thermal Insulating Materials of easy fracture of material.
The preparation method that another object of the present invention is to provide effective simplification production high strength Cryogenic Thermal Insulating Materials, enhances productivity.
Technical scheme: in order to solve the problems of the technologies described above, 1. 1 kinds of high strength Cryogenic Thermal Insulating Materials of the present invention, according to weight percent hundred, comprise the non-alkali glass primitive fiber of 80%-90% and the glass chopped silk of 10%-20%;
The diameter of described non-alkali glass primitive fiber is 0.4-1um, and length is 1-2mm;
The diameter of described glass chopped silk is 3-5um, and length is 2-4mm.
Described non-alkali glass primitive fiber is one or both in 260 SR ° glass fibre cotton or 47 SR ° glass fibre cotton.
High strength Cryogenic Thermal Insulating Materials its preparation method comprises step:
(1) raw material is prepared: according to weight percent hundred, comprise the non-alkali glass primitive fiber of 80%-90% and the glass chopped silk of 10%-20%;
(2) slurrying: non-alkali glass primitive fiber is poured in clear water, stirred 8-12min with agitator, form non-alkali glass primitive fiber solution, then glass chopped silk is put into non-alkali glass primitive fiber solution, continue to stir 10-15min and form slurries;
(3) moulding: the slurries described in step (2) are delivered in cylinder gunite sheet forming apparatus, slurry trickles and form l Water Paper page to the forming part of cylinder gunite sheet forming apparatus, l Water Paper page is carried out to secondary sizing 0.3-0.5s by squeeze roll, control dehumidifier pressure and under the condition of 0..5-0.8MPa, carry out pump up water, make the wet sheet moisture ratio that enters next step operation at 70%-80%;
(4) stoving process: the l Water Paper page obtaining in step (3) is sent in Sweet natural gas tunnel type baking oven it is carried out to drying and processing, and bake out temperature is 290-310 ℃, and drying time is 2-4min, with the crude green body of the type Cryogenic Thermal Insulating Materials that is enhanced;
(5) splitting winding: by the crude green body after drying in step (4), allow and cut as cutting unit, the enhancement type Cryogenic Thermal Insulating Materials after cutting, by pasting the rolling of cylinder rolling mode, is obtained to required enhancement type Cryogenic Thermal Insulating Materials.
Plasm PH value described in step (2) is 3.5-4.5, adopts Glacial acetic acid to regulate.
Beneficial effect: compared with prior art, the invention has the advantages that:
1. intensity is high: the present invention, by increase glass chopped silk in non-alkali glass primitive fiber solution, effectively increases the intensity of Cryogenic Thermal Insulating Materials, increases wearing quality;
2. environmental protection: the present invention, by adopting Sweet natural gas tunnel type baking oven to dry l Water Paper page, does not adopt coal gas, can not work the mischief to environment.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, should understand these embodiment and only be not used in and limit the scope of the invention for the present invention is described.
Embodiment 1:
(1) raw material is prepared: according to weight percent hundred, comprise the glass chopped silk of 90% non-alkali glass primitive fiber and 10%;
(2) slurrying: non-alkali glass primitive fiber is poured in clear water, stir 8min with agitator, form non-alkali glass primitive fiber solution, then glass chopped silk is put into non-alkali glass primitive fiber solution, continue to stir 15min and form slurries, adopt Glacial acetic acid to regulate the pH value of slurries, making pH value is 3.5;
(3) moulding: the slurries described in step (2) are delivered in cylinder gunite sheet forming apparatus, slurry trickles and form l Water Paper page to the forming part of cylinder gunite sheet forming apparatus, l Water Paper page is carried out to secondary sizing 0.5s by squeeze roll, control dehumidifier pressure and under the condition of 0.3 MPa, carry out pump up water, the wet sheet moisture ratio that makes to enter next step operation is 70%;
(4) stoving process: the l Water Paper page obtaining in step (3) is sent in Sweet natural gas tunnel type baking oven it is carried out to drying and processing, and bake out temperature is 290 ℃, and drying time is 2min, to obtain the crude green body of high strength Cryogenic Thermal Insulating Materials;
(5) splitting winding: by the crude green body after drying in step (4), allow and cut as cutting unit, the high strength Cryogenic Thermal Insulating Materials after cutting, by pasting the rolling of cylinder rolling mode, is obtained to required high strength Cryogenic Thermal Insulating Materials.。
Embodiment 2:
(1) raw material is prepared: according to weight percent hundred, comprise the glass chopped silk of 80% non-alkali glass primitive fiber and 20%;
(2) slurrying: non-alkali glass primitive fiber is poured in clear water, stir 12min with agitator, form non-alkali glass primitive fiber solution, then glass chopped silk is put into non-alkali glass primitive fiber solution, continue to stir 14min and form slurries, adopt Glacial acetic acid to regulate the pH value of slurries, making pH value is 4;
(3) moulding: the slurries described in step (2) are delivered in cylinder gunite sheet forming apparatus, slurry trickles and form l Water Paper page to the forming part of cylinder gunite sheet forming apparatus, l Water Paper page is carried out to secondary sizing 0.5s by squeeze roll, control dehumidifier pressure and under the condition of 0.4 MPa, carry out pump up water, the wet sheet moisture ratio that makes to enter next step operation is 78%;
(4) stoving process: the l Water Paper page obtaining in step (3) is sent in Sweet natural gas tunnel type baking oven it is carried out to drying and processing, and bake out temperature is 300 ℃, and drying time is 2.2min, to obtain the crude green body of high strength Cryogenic Thermal Insulating Materials;
(5) splitting winding: by the crude green body after drying in step (4), allow and cut as cutting unit, the high strength Cryogenic Thermal Insulating Materials after cutting, by pasting the rolling of cylinder rolling mode, is obtained to required high strength Cryogenic Thermal Insulating Materials.
Embodiment 3
(1) raw material is prepared: according to weight percent hundred, comprise the glass chopped silk of 85% non-alkali glass primitive fiber and 15%;
(2) slurrying: non-alkali glass primitive fiber is poured in clear water, stir 12min with agitator, form non-alkali glass primitive fiber solution, then glass chopped silk is put into non-alkali glass primitive fiber solution, continue to stir 15min and form slurries, adopt Glacial acetic acid to regulate the pH value of slurries, making pH value is 4.5;
(3) moulding: the slurries described in step (2) are delivered in cylinder gunite sheet forming apparatus, slurry trickles and form l Water Paper page to the forming part of cylinder gunite sheet forming apparatus, l Water Paper page is carried out to secondary sizing 0.4s by squeeze roll, control dehumidifier pressure and under the condition of 0.4MPa, carry out pump up water, make the wet sheet moisture ratio that enters next step operation 75%;
(4) stoving process: the l Water Paper page obtaining in step (3) is sent in Sweet natural gas tunnel type baking oven it is carried out to drying and processing, and bake out temperature is 310 ℃, and drying time is 3min, to obtain the crude green body of high strength Cryogenic Thermal Insulating Materials;
(5) splitting winding: by the crude green body after drying in step (4), allow and cut as cutting unit, the high strength Cryogenic Thermal Insulating Materials after cutting, by pasting the rolling of cylinder rolling mode, is obtained to required high strength Cryogenic Thermal Insulating Materials.
Claims (4)
1. a high strength Cryogenic Thermal Insulating Materials, is characterized in that: according to weight percent hundred, comprise the non-alkali glass primitive fiber of 80%-90% and the glass chopped silk of 10%-20%;
The diameter of described non-alkali glass primitive fiber is 0.4-1um, and length is 1-2mm;
The diameter of described glass chopped silk is 3-5um, and length is 2-4mm.
2. high strength Cryogenic Thermal Insulating Materials according to claim 1, is characterized in that: described non-alkali glass primitive fiber is one or both in 260 SR ° glass fibre cotton or 47 SR ° glass fibre cotton.
3. high strength Cryogenic Thermal Insulating Materials according to claim 1 and 2, its preparation method comprises step:
(1) raw material is prepared: according to weight percent hundred, comprise the non-alkali glass primitive fiber of 80%-90% and the glass chopped silk of 10%-20%;
(2) slurrying: non-alkali glass primitive fiber is poured in clear water, stirred 8-12min with agitator, form non-alkali glass primitive fiber solution, then glass chopped silk is put into non-alkali glass primitive fiber solution, continue to stir 10-15min and form slurries;
(3) moulding: the slurries described in step (2) are delivered in cylinder gunite sheet forming apparatus, slurry trickles and form l Water Paper page to the forming part of cylinder gunite sheet forming apparatus, l Water Paper page is carried out to secondary sizing 0.3-0.5s by squeeze roll, control dehumidifier pressure and under the condition of 0..5-0.8MPa, carry out pump up water, make the wet sheet moisture ratio that enters next step operation at 70%-80%;
(4) stoving process: the l Water Paper page obtaining in step (3) is sent in Sweet natural gas tunnel type baking oven it is carried out to drying and processing, and bake out temperature is 290-310 ℃, and drying time is 2-4min, with the crude green body of the type Cryogenic Thermal Insulating Materials that is enhanced;
(5) splitting winding: by the crude green body after drying in step (4), allow and cut as cutting unit, the enhancement type Cryogenic Thermal Insulating Materials after cutting, by pasting the rolling of cylinder rolling mode, is obtained to required enhancement type Cryogenic Thermal Insulating Materials.
4. high strength Cryogenic Thermal Insulating Materials according to claim 3, is characterized in that: the plasm PH value described in step (2) is 3.5-4.5, adopts Glacial acetic acid to regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054367.1A CN103880392A (en) | 2014-02-18 | 2014-02-18 | High-strength cryogenic insulating material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410054367.1A CN103880392A (en) | 2014-02-18 | 2014-02-18 | High-strength cryogenic insulating material and preparation method thereof |
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| CN103880392A true CN103880392A (en) | 2014-06-25 |
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| CN201410054367.1A Pending CN103880392A (en) | 2014-02-18 | 2014-02-18 | High-strength cryogenic insulating material and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030178080A1 (en) * | 2002-03-13 | 2003-09-25 | Nexans | Pipeline for the transport of refrigerated media |
| CN101058961A (en) * | 2006-12-13 | 2007-10-24 | 应建明 | Low-temperature thermal insulation paper, preparation method and application thereof |
| CN103074799A (en) * | 2013-01-21 | 2013-05-01 | 常州大利节能新材料有限公司 | Super breathable type deep-cooling heat-insulating material and preparation method thereof |
| CN103277631A (en) * | 2013-05-31 | 2013-09-04 | 重庆再升科技股份有限公司 | Glass-fiber vacuum insulation panel nano core material and preparation method thereof |
-
2014
- 2014-02-18 CN CN201410054367.1A patent/CN103880392A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030178080A1 (en) * | 2002-03-13 | 2003-09-25 | Nexans | Pipeline for the transport of refrigerated media |
| CN101058961A (en) * | 2006-12-13 | 2007-10-24 | 应建明 | Low-temperature thermal insulation paper, preparation method and application thereof |
| CN103074799A (en) * | 2013-01-21 | 2013-05-01 | 常州大利节能新材料有限公司 | Super breathable type deep-cooling heat-insulating material and preparation method thereof |
| CN103277631A (en) * | 2013-05-31 | 2013-09-04 | 重庆再升科技股份有限公司 | Glass-fiber vacuum insulation panel nano core material and preparation method thereof |
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Application publication date: 20140625 |