CN104152076A - Preparing technology for high temperature resistant protective film - Google Patents
Preparing technology for high temperature resistant protective film Download PDFInfo
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- CN104152076A CN104152076A CN201410383905.1A CN201410383905A CN104152076A CN 104152076 A CN104152076 A CN 104152076A CN 201410383905 A CN201410383905 A CN 201410383905A CN 104152076 A CN104152076 A CN 104152076A
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- polyurethane adhesive
- high temperature
- kapton
- resistant protective
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Abstract
The invention discloses a preparing technology for a high temperature resistant protective film. The preparing technology comprises the following steps: filling 28 parts of polyurethane resin Bostick7411, 30 parts of polyurethane resin Bostick7412, 2.3 parts of a crosslinker Boscodur21, 2.5 parts of catalyst MetacueT-12, 1.5 parts of a surfactant G125, 15 parts of butanone and 17 parts of toluene into a mixing trough, and continuously agitating for 2-3 hours under the rotating speed condition of 400-600 rpm; during agitating, raising the liquid temperature to 30-40 DEG C, and obtaining a polyurethane adhesive through filter processing; coating the polyurethane adhesive on a polyimide film by a tape casting machine; enabling a reinforced fiber net mounted on a reinforced fiber net uncoiling roller to drop on the polyimide film with the polyurethane adhesive under the self weight. The obtained high temperature resistant protective film provided by the invention is nonflammable, odorless and tear-resistant, prevents flame spread, cannot creep or crisp under the influence of ambient temperature variation, and is resistant to water vapor, chemicals and solvents.
Description
Technical field
The present invention relates to a kind of preparation technology of protective membrane, particularly a kind of preparation technology for high temperature resistant protective membrane.
Background technology
In prior art, generally it comprises substrate layer, adhesive layer and separated type material layer to protective membrane used.In use separated type material layer is torn to the surface by adhesive layer docile at protected material.But existing protective membrane has the following disadvantages: inflammable, scent of, easily make propagation of flame, and under extreme temperature, be hard to keep soft and can use.Therefore how to research and develop a kind of nonflammable, molten, odorlessness, do not make propagation of flame, and under extreme temperature, still can keep soft, and improved resistance to tearing and over-all properties protective membrane becomes the direction that this area skill personnel make great efforts.
Summary of the invention
The invention provides a kind of preparation technology for high temperature resistant protective membrane; the protective membrane that should obtain for preparation technology of high temperature resistant protective membrane is nonflammable, odorlessness, do not make propagation of flame, anti tear; and can not be subject to variation of ambient temperature and produce creep and embrittlement, water-fast steam, chemicals-resistant and resistance to solvent.
For achieving the above object, the technical solution used in the present invention is: a kind of preparation technology for high temperature resistant protective membrane, and described preparation technology comprises the following steps:
By 7411,30 parts of urethane resin Bostick7412 of 28 parts of urethane resin Bostick, 21,2.5 parts of catalyzer Metacue T-12 of 2.3 parts of crosslinking agent B oscodur, 1.5 parts of tensio-active agent Surfactant G125,15 parts of butanone, 17 parts of toluene, drop in mixing container, start variable-speed agitator, under the speed conditions of 400～600 revs/min, continuously stirring is 2 ~ 3 hours;
In stirring, fluid temperature is elevated to 30～40 ℃, and creating pockets of air, then stops stirring, and through filtration treatment, obtains polyurethane adhesive;
Kapton is arranged on film substrate let off roll, and the first power traction rail is pulled out Kapton from film substrate let off roll;
Curtain coating coating machine is described polyurethane adhesive, flows in the hopper of coating coating head of curtain coating coating machine, and be coated on Kapton through charging pump;
Be arranged on the fortifying fibre net of fortifying fibre net let off roll, by self weight, fall down and drop on the Kapton that has ultrasonic sealing polyurethane adhesive, and be fitted on film after being soaked by ultrasonic sealing polyurethane adhesive;
The Kapton that is loaded with described ultrasonic sealing polyurethane adhesive and fortifying fibre net enters baking oven, this ultrasonic sealing polyurethane adhesive carries out chemical reaction and reaches Procuring under heating, changes from liquid into solid fortifying fibre net is fixed on Kapton.
In technique scheme, further improved plan is as follows:
1,, in such scheme, described surface covered is 30～35 ms/min.
2, in such scheme, described oven temperature is 80～110 ℃, according to Gradient distribution Procuring under each section of baking oven 80-80-100-110-110-100-80 ℃ condition.
3, in such scheme, the solid content of described polyurethane adhesive is 45%, and viscosity is 1000cps.
4,, in such scheme, the glue spread of described ultrasonic sealing polyurethane adhesive is 8～15 grams/m; 0.011～0.02 ounce/cubic zhang of described fortifying fibre net.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect:
The present invention is for the preparation technology of high temperature resistant protective membrane; polyurethane adhesive of the present invention is coated on Kapton; when coating, key will suitably be controlled the level of response of coating; form prepolymer; meanwhile, also will by fortifying fibre net with coating together with Film laminated, polyurethane adhesive; its mechanism of action be base polyurethane prepolymer for use as under ul-trasonic irradiation, curing cross-linked and form stable chemical structure.It is the material of pure solid, does not need in use to add any solvent; Production efficiency is high, simple through ultrasonic hot composition operation technique during use; Have extremely strong perviousness and avidity, bond strength exceeds 40%～60% than other tackiness agent under similarity condition; Good weatherability, has possessed irreversible characteristic due to after building bridge, thereby can not be subject to variation of ambient temperature and produce creep and embrittlement.The excellent propertys such as water-fast steam, chemicals-resistant and resistance to solvent.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the device of preparation technology's employing of the present invention.
In above accompanying drawing, 1, film substrate let off roll; 2, the first power traction rail; 3, tackiness agent apparatus for coating; 4, fortifying fibre net let off roll; 5, baking oven, 6, the second power traction rail; 7, wind-up roll.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of preparation technology for high temperature resistant protective membrane, described preparation technology comprises the following steps:
By 7411,30 parts of urethane resin Bostick7412 of 28 parts of urethane resin Bostick, 21,2.5 parts of catalyzer Metacue T-12 of 2.3 parts of crosslinking agent B oscodur, 1.5 parts of tensio-active agent Surfactant G125,15 parts of butanone, 17 parts of toluene, drop in mixing container, start variable-speed agitator, under the speed conditions of 400～600 revs/min, continuously stirring is 2 ~ 3 hours;
In stirring, fluid temperature is elevated to 30～40 ℃, and creating pockets of air, then stops stirring, and through filtration treatment, obtains polyurethane adhesive;
Kapton is arranged on film substrate let off roll, and the first power traction rail is pulled out Kapton from film substrate let off roll;
Curtain coating coating machine is described polyurethane adhesive, flows in the hopper of coating coating head of curtain coating coating machine, and be coated on Kapton through charging pump;
Be arranged on the fortifying fibre net of fortifying fibre net let off roll, by self weight, fall down and drop on the Kapton that has ultrasonic sealing polyurethane adhesive, and be fitted on film after being soaked by ultrasonic sealing polyurethane adhesive;
The Kapton that is loaded with described ultrasonic sealing polyurethane adhesive and fortifying fibre net enters baking oven, this ultrasonic sealing polyurethane adhesive carries out chemical reaction and reaches Procuring under heating, changes from liquid into solid fortifying fibre net is fixed on Kapton.
Above-mentioned surface covered is 30～35 ms/min; Above-mentioned oven temperature is 80～110 ℃, according to Gradient distribution Procuring under each section of baking oven 80-80-100-110-110-100-80 ℃ condition.
The solid content of above-mentioned polyurethane adhesive is 45%, and viscosity is 1000cps; The glue spread of above-mentioned ultrasonic sealing polyurethane adhesive is 8～15 grams/m; 0.011～0.02 ounce/cubic zhang of described fortifying fibre net.
The present embodiment is as follows for preparation technology's working process of high temperature resistant protective membrane: Kapton wide by a meter and 1 micron thickness is arranged on film substrate let off roll 1, the first power traction rail 2 Kapton is pulled out according to the speed of 30 ms/min from film substrate let off roll 1.The reticulate pattern rail of reticulate pattern coating machine (tackiness agent apparatus for coating 3) is to select 50 orders, and the solid content of the ultrasonic sealing polyurethane adhesive having prepared is 50%, and viscosity is that 1200 cps are coated on Kapton.Fortifying fibre net proportion is 0.017 ounce/cubic zhang and is arranged on fortifying fibre net let off roll 4, fortifying fibre net leans on the weight of self to fall down and drops on the Kapton that has ultrasonic sealing polyurethane adhesive, and is fitted on film after being soaked by ultrasonic sealing polyurethane adhesive.The Kapton that is loaded with ultrasonic sealing polyurethane adhesive and fortifying fibre net enters baking oven 5, oven temperature is 80～110 ℃, according to Gradient distribution at each section of baking oven (80-80-100-110-110-100-80 ℃), the solvent extraction of being volatilized, ultrasonic sealing polyurethane adhesive carries out chemical reaction and reaches Procuring under heating, changes from liquid into solid fortifying fibre net is fixed on film.Through the second power traction rail 6, according to the speed of 30 ms/min, pull out, and rolling completes on wind-up roll 7.Like this preparation ultrasonic sealing film appearance inclusion-free, without white point, without wrinkle, without crimping with without bubble.Coating is evenly distributed, and the thickness of coating is 8 grams/m.Fortifying fibre net is evenly distributed, and grid becomes square, does not have lines crooked.The ultrasonic sealing film of preparation passes through under the condition that ultrasonic seam sealer is 10～13 cm per minute in 135～155 ℃ of temperature, 35～41 Kpa pressure, input speed and carries out pressing.Its stripping strength is 456 grams/cm.
The fortifying fibre net that the present invention uses is tynex net.Tynex tynex is the synthon goods of first synthesising macromolecule copolymer commercialization, the most outstanding advantage of tynex is that wear resistance is superior compared with other fiber, secondly the elasticity that is it is good, its elastic recovery rate wool that can match in excellence or beauty, also has its light weight, proportion is 1.14, in the synthon of commercialization, it is only second to polypropylene (polypropylene fibre, proportion is less than 1), and it is light compared with tynex (proportion 1.38), therefore tynex can be processed into thin even softness and level and smooth silk, for being woven into attractive and durable fabric, separately it is with the same tool rotproofness of tynex, be not afraid of and damage by worms, be not afraid of mouldy advantage.The shortcoming of tynex is that resistance to opticity is slightly poor, as outdoor while being subject to sunshine for a long time, easily raw yellow, strength degradation, compare its guarantor's type shape property with polyester capillaries poor, so fabric is taller and more straight, also has its fiber surface smooth, there is wax-like sense, about these shortcomings, work out in recent years various improvement measures, as added photostabilizer to improve resistance to opticity, or made special-shaped section to improve outward appearance and gloss, with DTY or ATY processing or with other fiber blend or interweave, to improve feel.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. for a preparation technology for high temperature resistant protective membrane, it is characterized in that: described preparation technology comprises the following steps:
By 7411,30 parts of urethane resin Bostick7412 of 28 parts of urethane resin Bostick, 21,2.5 parts of catalyzer Metacue T-12 of 2.3 parts of crosslinking agent B oscodur, 1.5 parts of tensio-active agent Surfactant G125,15 parts of butanone, 17 parts of toluene, drop in mixing container, start variable-speed agitator, under the speed conditions of 400～600 revs/min, continuously stirring is 2 ~ 3 hours;
In stirring, fluid temperature is elevated to 30～40 ℃, and creating pockets of air, then stops stirring, and through filtration treatment, obtains polyurethane adhesive;
Kapton is arranged on film substrate let off roll, and the first power traction rail is pulled out Kapton from film substrate let off roll;
Curtain coating coating machine is described polyurethane adhesive, flows in the hopper of coating coating head of curtain coating coating machine, and be coated on Kapton through charging pump;
Be arranged on the fortifying fibre net of fortifying fibre net let off roll, by self weight, fall down and drop on the Kapton that has described polyurethane adhesive, and be fitted on film after being soaked by polyurethane adhesive;
The Kapton that is loaded with described polyurethane adhesive and fortifying fibre net enters baking oven, and this polyurethane adhesive carries out chemical reaction and reaches Procuring under heating, changes from liquid into solid fortifying fibre net is fixed on Kapton.
2. the preparation technology for high temperature resistant protective membrane according to claim 1, is characterized in that: described surface covered is 30～35 ms/min.
3. the preparation technology for high temperature resistant protective membrane according to claim 1, is characterized in that: described oven temperature is 80～110 ℃, according to Gradient distribution Procuring under each section of baking oven 80-80-100-110-110-100-80 ℃ condition.
4. the preparation technology for high temperature resistant protective membrane according to claim 1, is characterized in that: the solid content of described polyurethane adhesive is 45%, and viscosity is 1000cps.
5. the preparation technology for high temperature resistant protective membrane according to claim 1, is characterized in that: the glue spread of described ultrasonic sealing polyurethane adhesive is 8～15 grams/m; 0.011～0.02 ounce/cubic zhang of described fortifying fibre net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410383905.1A CN104152076A (en) | 2014-08-06 | 2014-08-06 | Preparing technology for high temperature resistant protective film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410383905.1A CN104152076A (en) | 2014-08-06 | 2014-08-06 | Preparing technology for high temperature resistant protective film |
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| CN104152076A true CN104152076A (en) | 2014-11-19 |
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| CN201410383905.1A Pending CN104152076A (en) | 2014-08-06 | 2014-08-06 | Preparing technology for high temperature resistant protective film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264000A (en) * | 2017-07-26 | 2017-10-20 | 太仓市梓怡纺织有限公司 | A kind of complex method of melt spraying non-woven fabrics and nanofiber |
| CN109135605A (en) * | 2018-08-09 | 2019-01-04 | 安徽天念材料科技有限公司 | A kind of automobile decoration anti-one's water breaks hot melt adhesive film and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102199394A (en) * | 2011-04-12 | 2011-09-28 | 苏州斯迪克电子胶粘材料有限公司 | Ultrasonic sealing paint used for preparing insulated bag of inner wall of plane casing and preparation method thereof |
| US20110237760A1 (en) * | 2008-05-13 | 2011-09-29 | Tesa Se | Hydroxyl-Functionalised Polyurethane Hot Melt Prepolymer |
| CN102267264A (en) * | 2011-05-16 | 2011-12-07 | 苏州斯迪克电子胶粘材料有限公司 | Ultrasonic sealing film for preparing insulating sealable bags on inside walls of aircrafts, and preparation method thereof |
-
2014
- 2014-08-06 CN CN201410383905.1A patent/CN104152076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110237760A1 (en) * | 2008-05-13 | 2011-09-29 | Tesa Se | Hydroxyl-Functionalised Polyurethane Hot Melt Prepolymer |
| CN102199394A (en) * | 2011-04-12 | 2011-09-28 | 苏州斯迪克电子胶粘材料有限公司 | Ultrasonic sealing paint used for preparing insulated bag of inner wall of plane casing and preparation method thereof |
| CN102267264A (en) * | 2011-05-16 | 2011-12-07 | 苏州斯迪克电子胶粘材料有限公司 | Ultrasonic sealing film for preparing insulating sealable bags on inside walls of aircrafts, and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264000A (en) * | 2017-07-26 | 2017-10-20 | 太仓市梓怡纺织有限公司 | A kind of complex method of melt spraying non-woven fabrics and nanofiber |
| CN109135605A (en) * | 2018-08-09 | 2019-01-04 | 安徽天念材料科技有限公司 | A kind of automobile decoration anti-one's water breaks hot melt adhesive film and preparation method thereof |
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Application publication date: 20141119 |