CN110481105A - A kind of preparation method of Warm-keeping heat-insulating tent compound fabric - Google Patents
A kind of preparation method of Warm-keeping heat-insulating tent compound fabric Download PDFInfo
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- CN110481105A CN110481105A CN201910606650.3A CN201910606650A CN110481105A CN 110481105 A CN110481105 A CN 110481105A CN 201910606650 A CN201910606650 A CN 201910606650A CN 110481105 A CN110481105 A CN 110481105A
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/02—Layered products comprising a layer of synthetic resin in the form of fibres or filaments
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/08—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the cooling method
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical Kinetics & Catalysis (AREA)
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- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The present invention relates to a kind of preparation methods of Warm-keeping heat-insulating tent compound fabric, belong to technical field of textile fabric.The present invention is using polyimide modified aerosil as coating, the fabric of polyurethane-modified PBI fibre preparation is as base fabric, coating is coated between two layers of base fabric, a kind of Warm-keeping heat-insulating tent compound fabric is prepared by hot pressing, has the function of good weatherability, fire-retardant, waterproof, antiultraviolet etc.；PBI fibre has high temperature resistance outstanding and good waterproof performance；Aerosil has the characteristic of significant nano material, with good optical property, sound absorbing performance, chemical stability, the feature of environmental protection and excellent thermal and insulating performance, polyimides has good mechanical property and flexility, there is lower thermal conductivity simultaneously, manufactured film has good flexibility, it is flexible, it folds, therefore polyimide modified aerosil has good mechanical property and thermal and insulating performance.
Description
Technical field
The present invention relates to a kind of preparation methods of Warm-keeping heat-insulating tent compound fabric, belong to technical field of textile fabric.
Background technique
As the improvement of people's living standards, tourist industry rapidly develops, the development of outdoor textile is driven, wherein outdoor
The demand of Camp tent is increasing.Requirement to tent textile is also higher and higher, it is desirable that tent textile has basic anti-
Other than the performances such as water, tear-resistant, the higher performance such as insulation, antiultraviolet, radiation protection, infrared stealth is also required.
It is to improve the letter of tent thermal insulation property by that will have the film heat-insulating material liner of fine heat-proof quality in tent
Singly effective measures, while need to having good heat-proof quality this requires this heat-barrier material, will also have and well may be used
Folding property and flexibility, to bear multiple expansion and the gathering in tent use.
The tent sandwich heat-barrier material developed both at home and abroad includes textile heat-barrier material, Building class heat-barrier material and new at present
Type flexibility aerogel heat-insulating material.Textile heat-barrier material uses cotton, synthetic fibers Nomex etc. for insulating layer, has certain
Heat insulation effect, and the flexible moisture-inhibiting of material is the heat-barrier material that current tent thermal insulation layer generallys use.The heat-barrier material of Building class
It is chiefly used in building heat insulation, heat insulation effect is preferable and moisture-proof, and intensity is larger, in recent years also getting over as the application of tent heat-barrier material
Come more.Novel flexible aerogel heat-insulating material has the advantages that thermal conductivity is low, density is low, mechanical property is preferable, has good
Heat insulation and preservation effect.
Tent in use, since tent material will bear the various tension such as rope, strut, so must be using strong
Spend biggish fabric.Simultaneously to meet the requirement that tent is light, portable, frivolous tent fabric need to be used；Furthermore tent surface
Material will also have preferable waterproofing and moisture-penetration performances.In short, tent material must generally have following performance: higher intensity, waterproofness,
Windproof, steam permeability, weatherability, the performances such as anti-mould and anti-moth.
From paulin body number of layers, single layer tent, double shelter tent and tri-layer tant can be divided into.Single layer tent only has outer paulin
Cloth has many advantages, such as that light, small in size, manufacture craft is simple, is primarily adapted for use in relatively warm season or area；Double shelter tent is by outer
Tarpaulin and interior account lining cloth composition, lining cloth generally use the preferable fabric of gas permeability.In nice and cool season, the cold air outside tent
Under effect, the hot gas that human body excludes can condense droplet in tarpaulin inner wall, if only single layer tarpaulin, droplet will be in tarpaulins
Wall flows down, and makes humid environment in tent, should not live.And in increasing after account lining cloth, outer tarpaulin and interior account lining cloth mediate contact, people
The aqueous vapor that body sheds will be perforated through interior tarpaulin, and the droplet for condensing in outer tarpaulin is made to flow to ground, to solve single layer tent
The problem of inner wall is born water, the tent are suitable for nice and cool season or Han Qu；Tri-layer tant is increased between outer tarpaulin and liner cloth
One layer of heat insulating material, enhances the thermal property of tent, is suitable for winter or cold district.
From the point of view of account outside tent, exterior cover sheets of the outer tarpaulin as tent, it is desirable that fabric have compared with high density, waterproof
Effect is good, generally uses waterproof moisture permeating fabric, while biggish Tear strength, dimensional stability in view of meeting tent material
And the requirement of other special final finishings, it is usually main to select nylon and polyester filament plain cloth, also have on a small quantity using cotton, wash/
The top-weight fabrics such as cotton.Tent base fabric generally uses 70d × 190T nylon taffeta at present, and high-grade tent uses 75d × 185T
Or 100d × 160T Polyester Taffeta fabric, tent demanding for tearing brute force, then using 150d terylene Oxford cloth, 70d ×
The fabrics such as 190T or 70d × 210T nylon taffeta.In terms of water repellent top finish, though pvc coating waterproof effect is pretty good,
It is to cause the surface covering of fabric to have folding line or directly split using there is the phenomenon that becoming fragile of hardening when the temperature is low, and poly- ammonia
Ester coating can then overcome the shortcomings of pvc coating, and waterproof is also fine.The fabric of multiple polyurethane coating, water pressure resistance can be big
In 200mm.In terms of permeability, polyurethane coating and pvc coating fabric gas permeability are poor, the cold air outside tent
Under the action of, the hot gas generated in tent cold house's effect can occur, make humid environment in tent in fabric inner wall condensate；When white
When its temperature is higher, water evaporation can generate greenhouse effect.From the point of view of the interior account of tent, lining cloth generally select nylon taffeta,
The preferably frivolous fabric of the gas permeabilities such as eyelet fabric and cotton, while also considering with certain flame retardant property.
It is poor using the tent heat insulating effect of single fabric as the tent in cold district or use in winter, account
Heat in paulin is easy to pass to tent outer surface, while increasing energy consumption.As the requirement to tent heat-insulation warm keeping is got over
Come higher, the saving of the residence comfort and the energy of tent is increasingly focused on, the thermal and insulating performance of tent is in urgent need to be improved.
Summary of the invention
The technical problems to be solved by the invention: it is directed to the existing higher problem of tent material thermal conductivity, provides one kind
The preparation method of Warm-keeping heat-insulating tent compound fabric.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) take ethyl orthosilicate, polyimides, dehydrated alcohol, mass fraction be 1% hydrochloric acid solution, n,N-Dimethylformamide,
Mass fraction is 2% ammonium hydroxide, deionized water, and ethyl orthosilicate, dehydrated alcohol and deionized water are mixed magnetic agitation to get anti-
Liquid A is answered, it is 1% hydrochloric acid solution and polyimides that mass fraction is added in reaction solution A, continues 25~30min of stirring to get anti-
Liquid B is answered, by reaction solution B hydrolysis process to get mixed solution, in mixed solution and dripping n,N-Dimethylformamide and quality point
Number is 2% ammonium hydroxide, and magnetic agitation is to get mixed sols；
(2) mixed sols is replaced processing to get mixing wet gel, mixing wet gel is dried, is cooled to
Room temperature is to get heat insulating coat；
(3) take the fabric made of PBI fibre as base fabric, base fabric is immersed in 5 in liquid polyurethane resin~
Green body is padded and is baked processing to get green body by 10min, is cooled to room temperature to get modified base fabric；
(4) heat insulating coat is placed among two layers of modified base fabric, place is dried to get semi-finished product, by semi-finished product in hot-pressing processing
Reason, is cooled to room temperature to get Warm-keeping heat-insulating tent compound fabric.
Ethyl orthosilicate described in step (1), polyimides, dehydrated alcohol, mass fraction are 1% hydrochloric acid solution, N, N- bis-
The ratio of methylformamide, mass fraction between 2% ammonium hydroxide, deionized water is respectively as follows: according to parts by weight, weighs 10 respectively
~20 parts of ethyl orthosilicates, 5~10 parts of polyimides, 20~30 parts of dehydrated alcohols, 1~3 part of mass fraction be 1% hydrochloric acid solution,
0.5~0.7 part of n,N-Dimethylformamide, 0.80~1.2 part of mass fraction are 2% ammonium hydroxide, 60~80 parts of deionized waters.
Magnetic stirring process described in step (1) are as follows: ethyl orthosilicate, dehydrated alcohol and deionized water are mixed, stirred
Mixing speed is 8~10min of magnetic agitation under 300~400r/min.
Hydrolysis process step described in step (1) are as follows: by reaction solution B bath temperature be 30~35 DEG C at hydrolysis 30~
50min。
Magnetic stirring process described in step (1) are as follows: in mixed solution and dripping n,N-Dimethylformamide and quality point
Number is 2% ammonium hydroxide, and control rate of addition is 0.025~0.030mL/min, and low whipping speed is that magnetic force stirs under 500~700r/min
Mix 1~2h.
Replacement processing step described in step (2) are as follows: be replaced mixed sols in n-butanol and n-hexane respectively
Processing, displacement temperature are 50~60 DEG C.
Drying process step described in step (2) are as follows: wet gel will be mixed and be placed in the vacuum drying that temperature is 55~65 DEG C
In case after drying 1~2 day, dry 1~2h in the baking oven that temperature is 120~150 DEG C.
It is padded described in step (3) and bakes processing step are as follows: green body is placed in 3 leachings 3 in padding machine and is rolled, being placed in temperature is
5~10min is baked at 140~170 DEG C.
Autoclave steps described in step (4) are as follows: heat insulating coat is placed among two layers of modified base fabric, is 60 in temperature
1~2h is pressed with glass plate at~70 DEG C.
Drying process step described in step (4) are as follows: semi-finished product are placed in dry 10 in the baking oven that temperature is 40~50 DEG C
~12h.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention is using polyimide modified aerosil as coating, polyurethane-modified PBI fibre system
Coating is coated between two layers of base fabric by standby fabric as base fabric, and it is compound to prepare a kind of Warm-keeping heat-insulating tent by hot pressing
Fabric has the function of good weatherability, fire-retardant, waterproof, antiultraviolet etc.；The strand of PBI fibre mainly by
Heteroaromatic chain is constituted, and structure is more stable, and fibre strength, rigidity are larger, and melting temperature is higher, and protium content is low；
PBI fibre has high temperature resistance outstanding, and in 300 DEG C of at a temperature of exposure 1h, fiber is still able to maintain 100% original
There is intensity；By polyurethane-modified, so that PBI fibre has good waterproof performance；Aerosil surface
There are hydroxyl and partial adsorbates water, partial size is small, large specific surface area, density is small and hole ratio is high, with significant nano material
Characteristic has good optical property, sound absorbing performance, chemical stability, the feature of environmental protection and excellent thermal and insulating performance, polyamides
Imines has good mechanical property and flexility, while having lower thermal conductivity, and manufactured film has good flexibility,
It is flexible, it folds, therefore polyimide modified aerosil has good mechanical property and thermal and insulating performance；
(2) PBI fibre has good acid-proof alkaline in the present invention, has to sulfuric acid, hydrochloric acid, nitric acid stronger
Tolerance, and there is good flame retardant property, the limit oxygen index of PBI fibre has reached 41%, has belonged to non-ignitable fibre
Dimension.It with fabulous flame retardant property, does not burn in air, does not also melt or formed molten drop；Polyurethane machinery with higher
Intensity and oxidation stability, flexibility with higher and resilience, have excellent oil resistivity, solvent resistance, water resistance and
Fire resistance has good waterproof performance with fabric prepared by polyurethane-modified PBI fibre；
(3) the very thin nano aperture structure of aerosil makes it have very big specific surface area and extremely low thermal conductivity in the present invention
Rate, the thermal coefficient of aerosil is minimum to can reach 0.013W/m ﹒ K hereinafter, than (the 0.025W/m ﹒ of air under room temperature
K thermal coefficient) is much lower, is the best solid-state material of heat insulating effect, and has extremely-low density, environmental protection, anti-soda acid rotten
The features such as losing, be non-aging, durable；With polyimide modified aerosil so that modified aerogels have it is good
The Warm-keeping heat-insulating tent compound fabric of mechanical property, flexility and thermal and insulating performance, preparation has good flexibility,
It is flexible, it folds, and there is good thermal and insulating performance.
Specific embodiment
According to parts by weight, weigh respectively 10~20 parts of ethyl orthosilicates, 5~10 parts of polyimides, 20~30 parts it is anhydrous
Ethyl alcohol, 1~3 part of mass fraction are 1% hydrochloric acid solution, 0.5~0.7 part of n,N-Dimethylformamide, 0.80~1.2 part of quality point
Number is 2% ammonium hydroxide, 60~80 parts of deionized waters, and ethyl orthosilicate, dehydrated alcohol and deionized water are mixed, and low whipping speed is
For 8~10min of magnetic agitation to get reaction solution A, it is that 1% hydrochloric acid is molten that mass fraction is added in reaction solution A under 300~400r/min
Liquid and polyimides continue 25~30min of stirring to get reaction solution B, are 30~35 DEG C in bath temperature for reaction solution B and are lauched
30~50min is solved to get mixed solution, is 2% ammonium hydroxide in mixed solution and dripping n,N-Dimethylformamide and mass fraction,
Control rate of addition is 0.025~0.030mL/min, and low whipping speed is 1~2h of magnetic agitation under 500~700r/min, i.e.,
Obtain mixed sols；Mixed sols is replaced processing in n-butanol and n-hexane respectively, displacement temperature is 50~60 DEG C, i.e.,
Wet gel must be mixed, wet gel will be mixed and be placed in the vacuum oven that temperature is 55~65 DEG C after drying 1~2 day, in temperature
For 1~2h dry in 120~150 DEG C of baking ovens, it is cooled to room temperature to get heat insulating coat；It takes and is made of PBI fibre
Fabric as base fabric, base fabric is immersed in 5~10min in liquid polyurethane resin, green body is placed in padding machine to get green body
3 leachings 3 are rolled, and being placed in temperature is to bake 5~10min at 140~170 DEG C, are cooled to room temperature to get modified base fabric；By heat-insulated painting
It is placed among two layers of modified base fabric, presses 1~2h to get semi-finished product with glass plate at being 60~70 DEG C in temperature, by semi-finished product
It is placed in dry 10~12h in the baking oven that temperature is 40~50 DEG C, is cooled to room temperature to get Warm-keeping heat-insulating tent compound fabric.
Embodiment 1
According to parts by weight, 10 parts of ethyl orthosilicates, 5 parts of polyimides, 20 parts of dehydrated alcohols, 1 part of mass fraction are weighed respectively
It is 2% ammonium hydroxide, 60 parts of deionized waters for 1% hydrochloric acid solution, 0.5 part of n,N-Dimethylformamide, 0.80 part of mass fraction, by positive silicon
Acetoacetic ester, dehydrated alcohol and deionized water mixing, low whipping speed be under 300r/min magnetic agitation 8min to get reaction solution A,
In reaction solution A be added mass fraction be 1% hydrochloric acid solution and polyimides, continue stir 25min to get reaction solution B, will be anti-
Answer liquid B bath temperature be 30 DEG C at hydrolyze 30min to get mixed solution, in mixed solution and dripping N, N- dimethyl formyl
Amine and mass fraction are 2% ammonium hydroxide, and control rate of addition is 0.025mL/min, and low whipping speed is magnetic agitation under 500r/min
1h is to get mixed sols；Mixed sols is replaced processing in n-butanol and n-hexane respectively, displacement temperature is 50 DEG C,
Up to mixing wet gel, wet gel will be mixed and be placed in the vacuum oven that temperature is 55 DEG C after drying 1 day, be 120 in temperature
DEG C baking oven in dry 1h, be cooled to room temperature to get heat insulating coat；Take the fabric made of PBI fibre as base
Base fabric is immersed in 5min in liquid polyurethane resin and green body is placed in 3 leachings 3 in padding machine and is rolled, temperature is placed in get green body by cloth
Degree is to bake 5min at 140 DEG C, is cooled to room temperature to get modified base fabric；Heat insulating coat is placed among two layers of modified base fabric, In
Temperature is to press 1h to get semi-finished product with glass plate at 60 DEG C, and semi-finished product are placed in dry 10h in the baking oven that temperature is 40 DEG C, cold
But to room temperature to get Warm-keeping heat-insulating tent compound fabric.
Embodiment 2
According to parts by weight, 15 parts of ethyl orthosilicates, 8 parts of polyimides, 25 parts of dehydrated alcohols, 2 parts of mass fractions are weighed respectively
It is 2% ammonium hydroxide, 70 parts of deionized waters for 1% hydrochloric acid solution, 0.6 part of n,N-Dimethylformamide, 1.0 parts of mass fractions, by positive silicon
Acetoacetic ester, dehydrated alcohol and deionized water mixing, low whipping speed be under 350r/min magnetic agitation 9min to get reaction solution A,
In reaction solution A be added mass fraction be 1% hydrochloric acid solution and polyimides, continue stir 28min to get reaction solution B, will be anti-
Answer liquid B bath temperature be 32 DEG C at hydrolyze 40min to get mixed solution, in mixed solution and dripping N, N- dimethyl formyl
Amine and mass fraction are 2% ammonium hydroxide, and control rate of addition is 0.028mL/min, and low whipping speed is magnetic agitation under 600r/min
1h is to get mixed sols；Mixed sols is replaced processing in n-butanol and n-hexane respectively, displacement temperature is 55 DEG C,
Up to mixing wet gel, wet gel will be mixed and be placed in the vacuum oven that temperature is 60 DEG C after drying 1 day, be 135 in temperature
DEG C baking oven in dry 1h, be cooled to room temperature to get heat insulating coat；Take the fabric made of PBI fibre as base
Base fabric is immersed in 8min in liquid polyurethane resin and green body is placed in 3 leachings 3 in padding machine and is rolled, temperature is placed in get green body by cloth
Degree is to bake 8min at 155 DEG C, is cooled to room temperature to get modified base fabric；Heat insulating coat is placed among two layers of modified base fabric, In
Temperature is to press 1h to get semi-finished product with glass plate at 65 DEG C, and semi-finished product are placed in dry 11h in the baking oven that temperature is 45 DEG C, cold
But to room temperature to get Warm-keeping heat-insulating tent compound fabric.
Embodiment 3
According to parts by weight, 20 parts of ethyl orthosilicates, 10 parts of polyimides, 30 parts of dehydrated alcohols, 3 parts of mass fractions are weighed respectively
It is 2% ammonium hydroxide, 80 parts of deionized waters for 1% hydrochloric acid solution, 0.7 part of n,N-Dimethylformamide, 1.2 parts of mass fractions, by positive silicon
Acetoacetic ester, dehydrated alcohol and deionized water mixing, low whipping speed are magnetic agitation 10min under 400r/min to get reaction solution
A, it is 1% hydrochloric acid solution and polyimides that mass fraction is added in reaction solution A, continues to stir 30min to get reaction solution B, incites somebody to action
Reaction solution B hydrolyzes 50min to get mixed solution, in mixed solution and dripping N, N- dimethyl methyl at being 35 DEG C in bath temperature
Amide and mass fraction are 2% ammonium hydroxide, and control rate of addition is 0.030mL/min, and low whipping speed is that magnetic force stirs under 700r/min
2h is mixed to get mixed sols；Mixed sols is replaced processing in n-butanol and n-hexane respectively, displacement temperature is 60
DEG C to get mixing wet gel, wet gel will be mixed and be placed in after temperature is 2 days dry in 65 DEG C of vacuum oven, be in temperature
Dry 2h, is cooled to room temperature to get heat insulating coat in 150 DEG C of baking oven；Take the fabric conduct made of PBI fibre
Base fabric is immersed in 10min in liquid polyurethane resin and green body is placed in 3 leachings 3 in padding machine and is rolled, is placed in get green body by base fabric
Temperature is to bake 10min at 170 DEG C, is cooled to room temperature to get modified base fabric；Heat insulating coat is placed in two layers of modified base fabric
Between, it presses 2h to get semi-finished product with glass plate at being 70 DEG C in temperature, semi-finished product is placed in dry in the baking oven that temperature is 50 DEG C
12h is cooled to room temperature to get Warm-keeping heat-insulating tent compound fabric.
Reference examples: the Warm-keeping heat-insulating tent compound fabric of Dongguan company production.
The Warm-keeping heat-insulating tent compound fabric that embodiment and reference examples are prepared is detected, specific detection is as follows:
Tensile strength: being tested using WDWmodle100 type universal testing machine, and test loading speed is 1mm/min, and tensile load is flat
Capable and test sample length direction.
Compressive strength: it is tested using WDWmodle100 type universal testing machine, pressure head loading speed 1mm/min.For heat-insulated
Material commonly uses stress value when straining 10% or 25% to indicate its compressive strength.
Bending strength: using three-point bending method measurement aerogel block body bending strength, loading speed 1mm/min, across
Away from for 40mm.
Collet spacing is 50mm when test, sets tensile speed as 100 ± 5mm/min, opens instrument, starts to apply and tear
Power is until tearing records each numerical value in each sample stretching 100mm length to the terminal mark of sample.
Room temperature thermal conductivity: it is tested using HotDiskTPS2500 type thermal constant analyzer.Test method: transition flat heat source
Method；Sample size: 50mm × 40mm × 10mm.
Warmth retention property: GB/T11048-89 insulating property of textile test method is referred to.
Specific test result such as table 1.
1 performance characterization contrast table of table
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Reference examples |
| Tensile strength/MPa | 3.71 | 3.58 | 3.75 | 2.30 |
| Compressive strength/MPa | 1.47 | 1.36 | 1.31 | 0.88 |
| Bending strength/MPa | 5.43 | 5.55 | 5.52 | 1.06 |
| Thermal conductivity/W/m2·℃ | 1.1 | 1.2 | 1.3 | 9.3 |
| Warming rate/% | 87.5 | 85.5 | 83.9 | 42.5 |
As shown in Table 1, Warm-keeping heat-insulating tent compound fabric prepared by the present invention has good tensile strength, compressive strength, curved
Qu Qiangdu, thermal conductivity and warming rate.
Claims (10)
1. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric, it is characterised in that specific preparation step are as follows:
(1) take ethyl orthosilicate, polyimides, dehydrated alcohol, mass fraction be 1% hydrochloric acid solution, n,N-Dimethylformamide,
Mass fraction is 2% ammonium hydroxide, deionized water, and ethyl orthosilicate, dehydrated alcohol and deionized water are mixed magnetic agitation to get anti-
Liquid A is answered, it is 1% hydrochloric acid solution and polyimides that mass fraction is added in reaction solution A, continues 25~30min of stirring to get anti-
Liquid B is answered, by reaction solution B hydrolysis process to get mixed solution, in mixed solution and dripping n,N-Dimethylformamide and quality point
Number is 2% ammonium hydroxide, and magnetic agitation is to get mixed sols；
(2) mixed sols is replaced processing to get mixing wet gel, mixing wet gel is dried, is cooled to
Room temperature is to get heat insulating coat；
(3) take the fabric made of PBI fibre as base fabric, base fabric is immersed in 5 in liquid polyurethane resin~
Green body is padded and is baked processing to get green body by 10min, is cooled to room temperature to get modified base fabric；
(4) heat insulating coat is placed among two layers of modified base fabric, place is dried to get semi-finished product, by semi-finished product in hot-pressing processing
Reason, is cooled to room temperature to get Warm-keeping heat-insulating tent compound fabric.
2. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(1) ethyl orthosilicate, polyimides, dehydrated alcohol, mass fraction described in be 1% hydrochloric acid solution, n,N-Dimethylformamide,
Ratio of the mass fraction between 2% ammonium hydroxide, deionized water is respectively as follows: according to parts by weight, weighs 10~20 parts of positive silicic acid respectively
Ethyl ester, 5~10 parts of polyimides, 20~30 parts of dehydrated alcohols, 1~3 part of mass fraction are 1% hydrochloric acid solution, 0.5~0.7 part of N,
Dinethylformamide, 0.80~1.2 part of mass fraction are 2% ammonium hydroxide, 60~80 parts of deionized waters.
3. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(1) magnetic stirring process described in are as follows: by ethyl orthosilicate, dehydrated alcohol and deionized water mix, low whipping speed be 300~
8~10min of magnetic agitation under 400r/min.
4. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(1) the hydrolysis process step described in are as follows: hydrolyze 30~50min at being 30~35 DEG C in bath temperature by reaction solution B.
5. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(1) magnetic stirring process described in are as follows: in mixed solution and dripping n,N-Dimethylformamide and mass fraction be 2% ammonium hydroxide, control
Rate of addition processed is 0.025~0.030mL/min, and low whipping speed is 1~2h of magnetic agitation under 500~700r/min.
6. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(2) the replacement processing step described in are as follows: mixed sols is replaced processing in n-butanol and n-hexane respectively, replaces temperature
It is 50~60 DEG C.
7. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(2) the drying process step described in are as follows: wet gel will be mixed and be placed in dry 1~2 in the vacuum oven that temperature is 55~65 DEG C
After it, dry 1~2h in the baking oven that temperature is 120~150 DEG C.
8. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(3) padding described in simultaneously bakes processing step are as follows: green body is placed in 3 leachings 3 in padding machine and is rolled, being placed in temperature is at 140~170 DEG C
Bake 5~10min.
9. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(4) autoclave steps described in are as follows: heat insulating coat is placed among two layers of modified base fabric, uses glass at being 60~70 DEG C in temperature
Glass plate presses 1~2h.
10. a kind of preparation method of Warm-keeping heat-insulating tent compound fabric according to claim 1, it is characterised in that: step
(4) the drying process step described in are as follows: semi-finished product are placed in dry 10~12h in the baking oven that temperature is 40~50 DEG C.
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