CN110281605A - A kind of solvent-free heat discoloration shines synthetic leather and its manufacturing method - Google Patents

A kind of solvent-free heat discoloration shines synthetic leather and its manufacturing method Download PDF

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Publication number
CN110281605A
CN110281605A CN201910562147.2A CN201910562147A CN110281605A CN 110281605 A CN110281605 A CN 110281605A CN 201910562147 A CN201910562147 A CN 201910562147A CN 110281605 A CN110281605 A CN 110281605A
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China
Prior art keywords
synthetic leather
solvent
heat discoloration
parts
glycol
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Pending
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CN201910562147.2A
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Chinese (zh)
Inventor
范浩军
田赛琦
向均
陈意
颜俊
王忠辉
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Sichuan University
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Sichuan University
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Priority to CN201910562147.2A priority Critical patent/CN110281605A/en
Publication of CN110281605A publication Critical patent/CN110281605A/en
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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
    • 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
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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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    • B32—LAYERED PRODUCTS
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
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    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/422—Luminescent, fluorescent, phosphorescent

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)

Abstract

The invention discloses a kind of manufacturing methods of the luminous synthetic leather of solvent-free heat discoloration, surface group activation modification first is carried out to long after glow luminous material, modified long after glow luminous material and heat discoloration capsule are introduced into polyurethane cover simultaneously by bi-component in-situ TEM technology again, solvent-free heat discoloration has been made to shine synthetic leather, has solved existing blendings compounding luminescent material and polyurethane compatibility is poor, precipitation easy to migrate, the problems such as being unevenly distributed.The synthetic leather can absorb sunlight on daytime and stores, it is sustainable when night to shine, with temperature reversible change can occur for color when daytime, the color of light can also be changed when night with temperature, the regulation to polyurethane color can be realized by changing temperature, it can assign synthesis leather goods new designs and varieties, increase the functionality of synthetic leather, widen the application field of synthetic leather.Any organic solvent is not used in preparation process, meets the green consumption of synthetic leather industry development trend and consumer, the demand of environment protection health.

Description

A kind of solvent-free heat discoloration shines synthetic leather and its manufacturing method
Technical field
The invention belongs to synthetic leather material technology and synthetic leather manufacturing fields, and in particular to a kind of solvent-free energy-accumulating luminous conjunction The manufacturing method of finished leather.
Background technique
Synthetic leather industry will be known as PU synthetic leather with polyurethane (PU) resin and the artificial leather of composite for base fabric production, referred to as close Finished leather.PU synthetic leather has many advantages, such as that rich in color, decorative pattern is various, has excellent performance, and price is again cheaper than cortex fabric, deep to be disappeared The welcome of the person of expense, and enter the various aspects that people live as a kind of common daily necessities, in home decoration, clothes The various aspects such as dress, automobile interior decoration, shoemaking, luggage play irreplaceable role.With people for high-performance, high-quality, The demand of the ecological synthetic leather of high-environmental persistently rises, the demand that the synthetic leather product of single performance is no longer satisfied, in recent years Come, such as shines, discoloration, inhales the functional synthesis leather goods of wave, electromagnetic shielding by consumers.
Long after glow luminous material can store ambient light irradiation energy, and light is absorbed when bright and clear and is stored, Under dark condition, the energy that slowly release stores in the form of visible light, therefore the energy-saving luminous material that is otherwise known as.Rare earth gold The alkaline earth aluminate serial emission material for belonging to excitation has high luminous efficiency, persistence length, chemical property stable, "dead" The advantages that endangering is constantly subjected to the attention of people.By long after glow luminous material in conjunction with polyurethane, it is new that its product can be assigned Designs and varieties.It, can for the manufacture of sanitationman's clothes, children's dress, fireman's clothes, field worker, mountaineer's clothes etc. It reduces potential dangerous in particular job environment；For garment for children, the safety that children walk at night can be improved, while can Increase the interest of garment for children；For the work clothes of night work, such as the work clothes of mine worker, for the people that works at night The work of member provides convenience, and when peril occurs, self light emission function is also convenient for the expansion of search-and-rescue work, to rescue It helps work and help is provided.Luminous type synthetic leather can also be used for all kinds of daily lifes, amusement and recreation and communications and transportation etc., be people Class provides more convenient, living condition abundant.
Chinese patent 201410784579.5 discloses a kind of rare earth aluminate blue long afterflow polyurethane elastomeric fiber Rare earth aluminate luminescent material is dispersed in polyurethane stock solution by manufacturing method, and by dry spinning system, preparation has The polyurethane fiber of excellent luminance performance does not influence its mechanical property simultaneously.Chinese patent 201310589008.1 discloses one kind Blue green light shines membrane preparation method, provides a kind of environmental protection, good toughness, long service life, and the simple blue green light of manufacture craft Luminescent film preparation process.
Long after glow luminous material is introduced into synthetic leather in the form of doping is blended, often there is long after glow luminous material appearance It is easy to fall off, with resin base material compatibility it is bad, be unevenly distributed, the problems such as content is unstable, to influence luminescent properties.And And long after glow luminous material most widely used at present is mainly the aluminate of green or the silicate of blue, luminescent color collection In in relatively narrow wave-length coverage, color is single, it appears it is excessively dull and stiff, can not especially like following the fashion to people The young man of element brings more aesthetic feelings and enjoyment, and the fabric of solid color can not meet the demand in market, also fetter clothes Selection of the designer to intimate apparel fabric is filled, its more extensive application is limited.Furthermore this kind of material is used to develop sense Temperature discoloration synthetic leather also there are no relevant report.As people's environmental consciousness gradually increases, especially China was January 1 in 2018 It rises day to implement and imposes environment protection tax, the use of solvent type synthetic leather receives very big limitation in recent years, and uninanned platform is removed from office Manufacturing technology, which is listed in, encourages class clearer production technology.
Summary of the invention
In order to solve the problems in the prior art, the purpose of the present invention is to and a kind of solvent-free heat discoloration is provided and is shone synthesis The manufacturing method of leather, is first modified long after glow luminous material, and the amine that can be reacted with isocyanates is introduced on its surface Modified long after glow luminous material and heat discoloration capsule are introduced into polyurethane as synthetic leather surface layer, preparation by base simultaneously Solvent-free heat discoloration shines synthetic leather.The synthetic leather can absorb sunlight on daytime and stores, sustainable development when night Light, the red reversible change of white-can occur with temperature for color when synthetic leather daytime, and when night can also change light with temperature Color can realize the regulation to polyurethane color by changing temperature；Manufacturing technology is removed from office using uninanned platform, in production process In do not discharge any organic solvent, product is free of any solvent, meets green manufacturing and green consumption requirement.
To achieve the above object, the present invention provides above-mentioned solvent-free energy-accumulating luminous synthetic leather and its manufacturing methods, including Following steps, it is raw materials used based on parts by weight:
(1) modification of long after glow luminous material
By 15-25 parts of long after glow luminous material SrAl2O4: Eu2+, Dy3+It is added together with 3-5 parts of Silane coupling agent KH550s In reaction flask, heated mechanical mixer stops after the pH value 4-5,60-70 °C of reaction 6h of glacial acetic acid aqueous solution regulation system is added, It is repeatedly washed with ammonium hydroxide with dehydrated alcohol respectively, product is dried to quality and is no longer changed, the modified long-afterglow of amino-contained is made Luminescent material；
(2) preparation of the luminous polyurethane cover resin of bi-component heat discoloration:
The preparation of component A: polyethers or polyester diol are taken off under 120 °C, -0.08MPa ~ -0.1MPa vacuum condition Water 4-5h, it is spare, dewatered polyethers or 38-60 parts of polyester diol are added in reaction kettle, then successively put into chain extender 1-3 part and diisocyanate 12-18 parts, 0.05-0.1 parts of catalyst, it is warming up to 65-85 °C, is cooled to 55 °C after stirring 2-3h, 3.5-5 parts of end-capping reagent (2-hydroxyethyl)methylamine) are added, 0.5h is stirred, sealed package obtains the polyurethane prepolymer of hydroxyl sealing end Body, it is spare；
The preparation of B component: by 8-30 parts of diisocyanate, 3-12 parts modified of long after glow luminous material, temperature-sensing color-changing material 0.3-1.2 parts are uniformly mixed, spare；
(3) manufacture of the luminous synthetic leather of solvent-free heat discoloration:
B component is added in component A, control system-NCO/-OH mol ratio is between 1.0-1.5, after being sufficiently mixed uniformly Casting is coated in release paper, and curing obtains the luminous polyurethane cover of solvent-free heat discoloration in 90 °C of baking ovens, is then applied again Adhesive layer is covered, is dried to half-dried, is bonded with substrate hot pressing, continues to cure 2-3 min in 130 °C of baking ovens, cooling, leather paper separation, Obtain the luminous synthetic leather of solvent-free heat discoloration.
Selected diisocyanate is the different Buddhist diisocyanates of liquid,2,4Toluene di-isocyanate(TDI),4,4’- '-diphenylmethane diisocyanate, hexamethylene diisocyanate,4,4’Dicyclohexyl methyl hydride diisocyanate or to two isocyanide of benzene At least one of acid esters.
Selected polyethers or polyester diol is polyethylene glycol adipate two of the relative molecular mass in 2000-4000 At least one of alcohol, polycaprolactone glycol, polypropylene glycol, polycarbonate glycol, polyethylene glycol, polytetrahydrofuran diol.
Selected small molecule glycol chain extender be for1,4Butanediol,1,6Hexylene glycol,1,3-Propylene glycol, second two At least one of alcohol, diethylene glycol (DEG), triethylene glycol or DIETHYLENE GLYCOL；
Selected selected substrate is at least one of woven fabric, non-woven fabrics, woven fabric base fabric or bass；
Selected temperature-sensing color-changing material is fluorane, bisphenol compound, capsule composed by long-chain alcohol, changes Shi Youyan in temperature The variation of color, can be from coloured to colourless or from colourless to coloured or from one color to another color or in different temperatures A kind of lower color becomes multiple color.
Selected thermosol is polyurethane hot melt, EVA thermosol or the polyamide heat that fusion temperature is 110-130 DEG C At least one of colloidal sol.
Compared with prior art, the present invention has following obvious advantage:
(1) modification technology of long after glow luminous material, introduce silicone ingredients and with can the active group that reacts of isocyano, The consistency problem of inorganic material and organic material when not only having solved uninanned platform leather manufacture, but also solve existing blending compounding Type long after glow luminous material is easy to migrate to be precipitated, is unevenly distributed, shining the problems such as unstable, and prepared synthetic leather coating has Stable, lasting luminescent properties；
(2) long after glow luminous material and the ingenious combination of temperature-sensing color-changing material, prepared synthetic leather can absorb sunlight on daytime And store, when night is sustainable to shine, and reversible change can occur with temperature for color when daytime, and when night can also change with temperature The color of darkening has the characteristics such as apparent energy storage, luminous, heat discoloration, can be realized by changing temperature to polyurethane synthesis Remove from office the regulation of coating different colours；
(3) present invention does not use any organic solvent during the preparation process, and finished leather is also free of any solvent, obtained accumulation of energy hair Photosynthetic finished leather is environment-friendly products, meets synthetic leather industry development trend, meets the demand of consumer's green consumption, environment protection health.
Specific embodiment
The present invention is specifically described below by embodiment, it is necessary to which indicated herein is that following embodiment is only used It is further detailed in the present invention, should not be understood as limiting the scope of the invention, which is skilled in technique Personnel can make some nonessential modifications and adaptations according to the content of aforementioned present invention, still fall within protection model of the invention It encloses.
Embodiment 1:
(1) 25 parts of aluminate long after glow luminous material and 5 parts of Silane coupling agent KH550s are added in reaction flask together, are heated Mechanical stirring, be added glacial acetic acid aqueous solution regulation system pH value to 4,70 °C of reaction 6h after stop, respectively use ammonium hydroxide with it is anhydrous Ethyl alcohol repeatedly washs, and product is dried to quality and is no longer changed, and modified long after glow luminous material is made；
(2) by 120 °C, -0.08MPa ~ -0.1MPa vacuum dehydration, number-average molecular weight be 2000 polypropylene glycol (PPG2000) it is added in reaction kettle with number-average molecular weight for 1,000 8 parts of polytetrahydrofuran dihydric alcohol (PTMG1000) for 30 parts, Chain extender is successively put into again1,4-It 1.35 parts and 15 parts of isophorone diisocyanate of butanediol, 0.1 part of catalyst organo-bismuth, rises Temperature is cooled to 55 °C after stirring 3h, is added 4.5 parts of end-capping reagent (2-hydroxyethyl)methylamine), stir 0.5h, sealed package obtains to 75 °C Hydroxy-end capped base polyurethane prepolymer for use as；
(3) by 4,4'- dicyclohexyl methyl hydride diisocyanate (H 12 MDI) 30 parts, modified long after glow luminous material SrAl2O4: Eu2+, Dy3+12 parts, 1.2 parts of temperature-sensing color-changing material, 0.05 part of organic bismuth catalyst be added to it is obtained above-mentioned hydroxy-end capped In base polyurethane prepolymer for use as, control system-NCO/-OH mol ratio is sufficiently mixed 1.0, and then casting is coated on release On paper, solidifies in 90 °C of baking ovens and be then coated with poly- ammonia as surface layer up to the luminous polyurethane of solvent-free heat discoloration Ester hot melt adhesive adhesive layer is bonded with woven fabric base fabric hot pressing, continues to cure 2-3 min in 130 °C of baking ovens, and cooling, leather paper separates, Obtain the luminous synthetic leather of solvent-free heat discoloration.
The synthetic leather of method preparation absorbs luminous energy on daytime, and white, (< when temperature is low is presented in (40 DEG C of >) when temperature is high 25 DEG C) red is presented；At night, green is presented in (40 DEG C of >) when temperature is high, and yellow is presented in (25 DEG C of <) when temperature is low, presents bright Aobvious heat discoloration effect.
Embodiment 2:
(1) 15 parts of aluminate long after glow luminous material and 3 parts of Silane coupling agent KH550s are added in reaction flask together, are heated Mechanical stirring, be added glacial acetic acid aqueous solution regulation system pH value to 5,60 °C of reaction 6h after stop, respectively use ammonium hydroxide with it is anhydrous Ethyl alcohol repeatedly washs, and product is dried to quality and is no longer changed, and modified long after glow luminous material is made, wherein raw materials used Based on parts by weight；
(2) by 120 °C, -0.08MPa ~ -0.1MPa vacuum dehydration, number-average molecular weight be 4000 polypropylene glycol (PPG4000) it is added to instead with number-average molecular weight for 1,000 10 parts of polyneopentyl glycol adipate glycol (PMA1000) for 40 parts It answers in kettle, then successively 1 part and 10 parts of isophorone diisocyanate of investment chain extender diethylene glycol (DEG), hexamethylene diisocyanate 2 Part, 0.07 part of catalyst organic silver, 85 °C are warming up to, 55 °C is cooled to after stirring 2h, end-capping reagent (2-hydroxyethyl)methylamine) is added 3.5 parts, 0.5h is stirred, sealed package obtains hydroxy-end capped base polyurethane prepolymer for use as；
(3) by 8 parts of hexamethylene diisocyanate, modified long after glow luminous material SrAl2O4:Eu2+, Dy3+3 parts, temperature-sensitive change 0.3 part of color material, 0.01 part of organic silver be added in obtained above-mentioned hydroxy-end capped base polyurethane prepolymer for use as, control system- NCO/-OH mol ratio is sufficiently mixed 1.5, and then casting is coated in release paper, is solidified in 90 °C of baking ovens to obtain the final product Solvent-free heat discoloration shines polyurethane, as surface layer, is coated with EVA adhesive layer, is bonded with wet process bass hot pressing, 130 °C of baking oven continues to cure 2-3 min, and cooling, leather paper separation obtains the luminous synthetic leather of solvent-free heat discoloration.
The synthetic leather of method preparation absorbs luminous energy on daytime and stores, and white is presented in (45 DEG C of >) when temperature is high, and temperature is low When (25 DEG C of <) present it is red；At night, green is presented in (45 DEG C of >) when temperature is high, and yellow is presented in (25 DEG C of <) when temperature is low, With heat discoloration effect.
Embodiment 3:
(1) 20 parts of aluminate long after glow luminous material and 4 parts of Silane coupling agent KH550s are added in three-necked bottle together, are heated Mechanical stirring stops after the pH value to 4.5,65 °C of reaction 6h of glacial acetic acid regulation system is added.It is multiple with dehydrated alcohol with ammonium hydroxide Washing, is dried to quality for product and no longer changes, modified long after glow luminous material is made, wherein raw materials used with weight Number meter；
(2) by dehydration, number-average molecular weight be 2000 40 parts of equal molecules of sum number of polybutyleneadipate (PBA2000) Amount is added in reaction kettle for 1,000 20 parts of polyethylene glycol (PEG1000), then successively puts into 3 parts of chain extender triethylene glycol and hexichol 18 parts of dicyclohexylmethane diisocyanate, 0.05 part of catalyst organic silver, 65 °C are warming up to, 55 °C is cooled to after stirring 2.5h, is added End-capping reagentN5 parts of methyl monoethanolamine, 0.5h is stirred, sealed package obtains hydroxy-end capped base polyurethane prepolymer for use as；
By 21 parts of 4,4'- dicyclohexyl methyl hydride diisocyanate, modified long after glow luminous material SrAl2O4:Eu2+, Dy3+8 parts, 0.8 part of temperature-sensing color-changing material, organic silver 0.03 are added in obtained above-mentioned hydroxy-end capped base polyurethane prepolymer for use as, control volume System's-NCO/-OH mol ratio is sufficiently mixed 1.2, and then casting is coated in release paper, is solidified in 90 °C of baking ovens It is coated with polyamide thermosol adhesive layer as surface layer up to the luminous polyurethane of solvent-free heat discoloration, with woven fabric heat Conjunction is overlayed, continues to cure 2-3 min in 130 °C of baking ovens, cooling, leather paper separation obtains the luminous synthesis of solvent-free heat discoloration Leather.
The synthetic leather of method preparation, on daytime, white is presented in (40 DEG C of >) when temperature is high, and (25 DEG C of <) is presented when temperature is low It is red；At night, green is presented in (40 DEG C of >) when temperature is high, and yellow is presented in (25 DEG C of <) when temperature is low, and apparent temperature-sensitive is presented Discoloration effect.

Claims (7)

  1. Synthetic leather and its manufacturing method 1. a kind of solvent-free heat discoloration shines, it is characterised in that method includes the following steps:
    (1) modification of long after glow luminous material
    By 15-25 parts of long after glow luminous material SrAl2O4: Eu2+, Dy3+It is added together with 3-5 parts of Silane coupling agent KH550s In reaction flask, heated mechanical mixer stops after the pH value 4-5,60-70 °C of reaction 6h of glacial acetic acid aqueous solution regulation system is added, It is repeatedly washed with ammonium hydroxide with dehydrated alcohol respectively, product is dried to quality and is no longer changed, the modified long-afterglow of amino-contained is made Luminescent material, wherein it is raw materials used based on parts by weight；
    (2) preparation of the luminous polyurethane cover resin of bi-component heat discoloration:
    The preparation of component A: polyethers or polyester diol are taken off under 120 °C, -0.08MPa ~ -0.1MPa vacuum condition Water 4-5h, it is spare, dewatered polyethers or 38-60 parts of polyester diol are added in reaction kettle, then successively put into chain extender 1-3 part and diisocyanate 12-18 parts, 0.05-0.1 parts of catalyst, it is warming up to 65-85 °C, is cooled to 55 °C after stirring 2-3h, 3.5-5 parts of end-capping reagent (2-hydroxyethyl)methylamine) are added, 0.5h is stirred, sealed package obtains the polyurethane prepolymer of hydroxyl sealing end Body, it is spare；
    The preparation of B component: by 8-30 parts of diisocyanate, long after glow luminous material 3-12 parts modified, temperature-sensing color-changing material 0.3-1.2 parts are uniformly mixed, spare；
    (3) manufacture of the luminous synthetic leather of solvent-free heat discoloration:
    B component is added in component A, control system-NCO/-OH mol ratio is between 1.0-1.5, after being sufficiently mixed uniformly Casting is coated in release paper, and curing obtains the luminous polyurethane cover of solvent-free heat discoloration in 90 °C of baking ovens, is then applied again Thermosol adhesive layer is covered, is bonded with substrate hot pressing, continues to cure 2-3 min in 130 °C of baking ovens, cooling, leather paper separation obtains Solvent-free heat discoloration shines synthetic leather.
  2. Synthetic leather and its manufacturing method 2. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Diisocyanate be room temperature liquid different Buddhist diisocyanates,2,4Toluene di-isocyanate(TDI), hexa-methylene two are different Cyanate,4,4’At least one of dicyclohexyl methyl hydride diisocyanate or paraphenylene diisocyanate.
  3. Synthetic leather and its manufacturing method 3. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Polyethers or polyester diol are polyethylene glycol adipate glycol, polycaprolactone of the relative molecular mass in 2000-4000 At least one of glycol, polypropylene glycol, polycarbonate glycol, polyethylene glycol, polytetrahydrofuran diol.
  4. Synthetic leather and its manufacturing method 4. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Small molecule glycol chain extender is1,4Butanediol,1,6Hexylene glycol,1,3-Propylene glycol, ethylene glycol, diethylene glycol (DEG), triethylene glycol Or at least one of DIETHYLENE GLYCOL.
  5. Synthetic leather and its manufacturing method 5. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Substrate is at least one of woven fabric, non-woven fabrics, woven fabric base fabric or bass.
  6. Synthetic leather and its manufacturing method 6. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Temperature-sensing color-changing material is fluorane, bisphenol compound, capsule composed by long-chain alcohol, the coloured change when temperature changes Change, it can be from coloured to colourless or from colourless to coloured or from one color to another color or a kind of at different temperatures Color becomes multiple color.
  7. Synthetic leather and its manufacturing method 7. solvent-free heat discoloration according to claim 1 shines, which is characterized in that selected Thermosol be melt temperature be in 110-130 DEG C of polyurethane hot melt, EVA thermosol or polyamide thermosol at least one Kind.
CN201910562147.2A 2019-06-26 2019-06-26 A kind of solvent-free heat discoloration shines synthetic leather and its manufacturing method Pending CN110281605A (en)

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Publication number Priority date Publication date Assignee Title
CN110670376A (en) * 2019-10-09 2020-01-10 四川大学 Solvent-free three-proofing synthetic leather and manufacturing method thereof
CN111072913A (en) * 2019-11-26 2020-04-28 浙江禾欣科技有限公司 Solvent-free polyurethane resin for automobile seat leather and preparation method thereof
CN111961364A (en) * 2020-08-12 2020-11-20 福建省春天生态科技股份有限公司 Preparation method of country experience type light-storing luminescent material
CN115094635A (en) * 2022-06-28 2022-09-23 东风汽车集团股份有限公司 Noctilucent suede material and preparation method and application thereof
WO2024052231A1 (en) * 2022-09-08 2024-03-14 Basf Se Solvent-free base and method for producing the same

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CN106939517A (en) * 2017-04-01 2017-07-11 江苏科美新材料有限公司 A kind of high-performance WPU superfine fiber chemical leathers and its clean preparation method
CN108559053A (en) * 2018-04-24 2018-09-21 四川大学 The preparation method of photochromic luminous polyurethane based on long after glow luminous material and spiro-pyrans

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CN102477290A (en) * 2010-11-30 2012-05-30 北京华纺高新技术有限公司 Thermo-sensitive discoloration material microcapsule and preparation method thereof
CN106939517A (en) * 2017-04-01 2017-07-11 江苏科美新材料有限公司 A kind of high-performance WPU superfine fiber chemical leathers and its clean preparation method
CN108559053A (en) * 2018-04-24 2018-09-21 四川大学 The preparation method of photochromic luminous polyurethane based on long after glow luminous material and spiro-pyrans

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110670376A (en) * 2019-10-09 2020-01-10 四川大学 Solvent-free three-proofing synthetic leather and manufacturing method thereof
CN111072913A (en) * 2019-11-26 2020-04-28 浙江禾欣科技有限公司 Solvent-free polyurethane resin for automobile seat leather and preparation method thereof
CN111961364A (en) * 2020-08-12 2020-11-20 福建省春天生态科技股份有限公司 Preparation method of country experience type light-storing luminescent material
CN115094635A (en) * 2022-06-28 2022-09-23 东风汽车集团股份有限公司 Noctilucent suede material and preparation method and application thereof
WO2024052231A1 (en) * 2022-09-08 2024-03-14 Basf Se Solvent-free base and method for producing the same

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