CN109181277A - A kind of biology base TPU material and preparation method thereof with high-fire resistance - Google Patents
A kind of biology base TPU material and preparation method thereof with high-fire resistance Download PDFInfo
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- CN109181277A CN109181277A CN201810953990.9A CN201810953990A CN109181277A CN 109181277 A CN109181277 A CN 109181277A CN 201810953990 A CN201810953990 A CN 201810953990A CN 109181277 A CN109181277 A CN 109181277A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6492—Lignin containing materials; Wood resins; Wood tars; Derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/675—Low-molecular-weight compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of biology base TPU material and preparation method thereof with high-fire resistance, it includes biopolyol 40%-50%, diisocyanate 25%-40%, anti-hydrolysis agent 5%-8%, antioxidant 3%-6%, chain extender 1%-5%, the double stearoylketene amine crosslinker 2%-5% of ethenylidene, heat-resisting additive 5%-8% and reduced graphene 5%-12% that this, which has the biology base TPU material of high-fire resistance,.A kind of biology base TPU material with high-fire resistance provided by the invention and preparation method thereof passes through addition anti-hydrolysis agent, antioxidant etc., it can guarantee the stability of reaction process, product is avoided to be denaturalized, its finish can be improved by crosslinking agent simultaneously, eliminate the particulate matter in TPU material, also raw material mix compactness and stability are to ensure that, and it is handled finally by that people's additive and reduced graphene, heat resistance can be improved, guarantee quality, process controllability is increased simultaneously, improves production and processing efficiency and stability.
Description
Technical field
The present invention relates to TPU field of material technology more particularly to a kind of biology base TPU material with high-fire resistance and its
Preparation method.
Background technique
Thermoplastic polyurethane elastomer (TPU) is that a kind of heating can be plasticized, and the polyurethane that solvent can dissolve is added.By
In with excellent wearability, mechanical property and resilience, lower temperature resistance, chemical resistance and structure designability, TPU
There is very extensive application in modern production and life.
And the shortcomings that existing TPU material is limited by its formula and process structure, and there are facile hydrolysis, poor heat resistance,
It works at a higher temperature, is easy to appear aging, softening transform, mechanical strength decline, there are security risks, and produce
It is easy hydrolysis denaturation in journey, influences the structural stability of final products.
Summary of the invention
The purpose of the present invention is to solve disadvantage existing in the prior art, and propose a kind of with high-fire resistance
Biology base TPU material and preparation method thereof.
To achieve the goals above, present invention employs following technical solutions:
A kind of biology base TPU material and preparation method thereof with high-fire resistance, this has the biology base TPU material of high-fire resistance
Including biopolyol 40%-50%, diisocyanate 25%-40%, anti-hydrolysis agent 5%-8%, antioxidant 3%-6%, chain extender
The double stearoylketene amine crosslinker 2%-5% of 1%-5%, ethenylidene, heat-resisting additive 5%-8% and reduced graphene 5%-12%.
Preferably, the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours.
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1
Hour, reaction obtained polyurethane prepolymer to 2 hours.
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, added
Enter into reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols.
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle.
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, obtains one
Secondary mixed raw material.
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material.
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting is squeezed
Out, high-fire resistance TPU material can be obtained.
Preferably, the stirring rate is 200 rpms to 250 rpms.
Preferably, the mixing condition is 90 degrees Celsius to 100 degrees Celsius of temperature, and revolving speed is 100 rpms to 120 turns
Per minute.
Preferably, the anti-hydrolysis agent include bisphenol A diglycidyl ether 40%-45%, polycarbodiimide 30%-35% and
Vinyl silane triisopropoxide 20%-30%.
Preferably, the antioxidant is propionic acid n-octadecyl alcohol ester.
Preferably, the chain extender is one or more mixtures of hexylene glycol, glycerol, trimethylolpropane, diethylene glycol (DEG).
Preferably, the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
Preferably, the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute.
P2, by silane coupling agent using hexamethylene be diluted to mass percent be 1:5 to 1:7, obtain dilute solution
500 milliliters to 700 milliliters.
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms to carry out
Even stirring, promotes homogeneous reaction, continues 1 hour to 2 hours.
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene to wave
Hair, can be obtained heat-resisting additive.
Preferably, the biopolyol uses rice husk polylol, castor oil-base polyalcohol and epoxy soybean oil base
One kind of polyalcohol.
A kind of biology base TPU material with high-fire resistance provided by the invention and preparation method thereof passes through addition resistant to hydrolysis
Agent, antioxidant etc., it is ensured that the stability of reaction process avoids product from being denaturalized, while it can be improved by crosslinking agent
Finish eliminates the particulate matter in TPU material, is also to ensure that raw material mix compactness and stability, and finally by
That people's additive and reduced graphene are handled, and heat resistance can be improved, and guarantee quality, while it is controllable to increase technique
Property, improve production and processing efficiency and stability.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
A kind of biology base TPU material and preparation method thereof with high-fire resistance, this has the biology base TPU of high-fire resistance
Material includes biopolyol 40%-50%, diisocyanate 25%-40%, anti-hydrolysis agent 5%-8%, antioxidant 3%-6%, expands
The double stearoylketene amine crosslinker 2%-5% of chain agent 1%-5%, ethenylidene, heat-resisting additive 5%-8% and reduced graphene 5%-12%.
Preferably, the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours.
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1
Hour, reaction obtained polyurethane prepolymer to 2 hours.
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, added
Enter into reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols.
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle.
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, obtains one
Secondary mixed raw material.
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material.
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting is squeezed
Out, high-fire resistance TPU material can be obtained.
Preferably, the stirring rate is 200 rpms to 250 rpms.
Preferably, the mixing condition be 90 degrees Celsius to 100 degrees Celsius of temperature, revolving speed be 100 rpms extremely
120 rpms.
Preferably, the anti-hydrolysis agent includes bisphenol A diglycidyl ether 40%-45%, polycarbodiimide 30%-
35% and vinyl silane triisopropoxide 20%-30%.
Preferably, the antioxidant is propionic acid n-octadecyl alcohol ester.
Preferably, the chain extender is hexylene glycol, the one or more of glycerol, trimethylolpropane, diethylene glycol (DEG) mix
Close object.
Preferably, the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
Preferably, the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute.
P2, by silane coupling agent using hexamethylene be diluted to mass percent be 1:5 to 1:7, obtain dilute solution
500 milliliters to 700 milliliters.
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms to carry out
Even stirring, promotes homogeneous reaction, continues 1 hour to 2 hours.
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene to wave
Hair, can be obtained heat-resisting additive.
Preferably, the biopolyol uses rice husk polylol, castor oil-base polyalcohol and epoxy soybean
One kind of based oil.
A kind of biology base TPU material with high-fire resistance provided by the invention and preparation method thereof passes through addition resistant to hydrolysis
Agent, antioxidant etc., it is ensured that the stability of reaction process avoids product from being denaturalized, while it can be improved by crosslinking agent
Finish eliminates the particulate matter in TPU material, is also to ensure that raw material mix compactness and stability, and finally by
That people's additive and reduced graphene are handled, and heat resistance can be improved, and guarantee quality, while it is controllable to increase technique
Property, improve production and processing efficiency and stability.
Embodiment 1
A kind of biology base TPU material and preparation method thereof with high-fire resistance, this has the biology base TPU material of high-fire resistance
It is double hard including biopolyol 43%, diisocyanate 27%, anti-hydrolysis agent 6%, antioxidant 3%, chain extender 5%, ethenylidene
Ester-amide cross-linker 3%, heat-resisting additive 8% and reduced graphene 5%.
Preferably, the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours.
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1
Hour, reaction obtained polyurethane prepolymer to 2 hours.
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, added
Enter into reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols.
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle.
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, obtains one
Secondary mixed raw material.
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material.
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting is squeezed
Out, high-fire resistance TPU material can be obtained.
Preferably, the stirring rate is 200 rpms to 250 rpms.
Preferably, the mixing condition be 90 degrees Celsius to 100 degrees Celsius of temperature, revolving speed be 100 rpms extremely
120 rpms.
Preferably, the anti-hydrolysis agent includes bisphenol A diglycidyl ether 43%, polycarbodiimide 33% and ethylene
Three isopropoxy silane 24% of base.
Preferably, the antioxidant is propionic acid n-octadecyl alcohol ester.
Preferably, the chain extender is hexylene glycol, the one or more of glycerol, trimethylolpropane, diethylene glycol (DEG) mix
Close object.
Preferably, the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
Preferably, the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute.
P2, by silane coupling agent using hexamethylene be diluted to mass percent be 1:5 to 1:7, obtain dilute solution
500 milliliters to 700 milliliters.
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms to carry out
Even stirring, promotes homogeneous reaction, continues 1 hour to 2 hours.
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene to wave
Hair, can be obtained heat-resisting additive.
Preferably, the biopolyol uses rice husk polylol, castor oil-base polyalcohol and epoxy soybean
One kind of based oil.
Embodiment 2
A kind of biology base TPU material and preparation method thereof with high-fire resistance, this has the biology base TPU material of high-fire resistance
It is double hard including biopolyol 40%, diisocyanate 28%, anti-hydrolysis agent 6%, antioxidant 6%, chain extender 3%, ethenylidene
Ester-amide cross-linker 4%, heat-resisting additive 6% and reduced graphene 7%.
Preferably, the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours.
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1
Hour, reaction obtained polyurethane prepolymer to 2 hours.
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, added
Enter into reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols.
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle.
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, obtains one
Secondary mixed raw material.
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material.
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting is squeezed
Out, high-fire resistance TPU material can be obtained.
Preferably, the stirring rate is 200 rpms to 250 rpms.
Preferably, the mixing condition be 90 degrees Celsius to 100 degrees Celsius of temperature, revolving speed be 100 rpms extremely
120 rpms.
Preferably, the anti-hydrolysis agent includes bisphenol A diglycidyl ether 45%, polycarbodiimide 32% and ethylene
Three isopropoxy silane 23% of base.
Preferably, the antioxidant is propionic acid n-octadecyl alcohol ester.
Preferably, the chain extender is hexylene glycol, the one or more of glycerol, trimethylolpropane, diethylene glycol (DEG) mix
Close object.
Preferably, the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
Preferably, the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute.
P2, by silane coupling agent using hexamethylene be diluted to mass percent be 1:5 to 1:7, obtain dilute solution
500 milliliters to 700 milliliters.
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms to carry out
Even stirring, promotes homogeneous reaction, continues 1 hour to 2 hours.
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene to wave
Hair, can be obtained heat-resisting additive.
Preferably, the biopolyol uses rice husk polylol, castor oil-base polyalcohol and epoxy soybean
One kind of based oil.
Embodiment 3
A kind of biology base TPU material and preparation method thereof with high-fire resistance, this has the biology base TPU material of high-fire resistance
It is double hard including biopolyol 50%, diisocyanate 27%, anti-hydrolysis agent 5%, antioxidant 4%, chain extender 2%, ethenylidene
Ester-amide cross-linker 2%, heat-resisting additive 5% and reduced graphene 5%.
Preferably, the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours.
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1
Hour, reaction obtained polyurethane prepolymer to 2 hours.
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, added
Enter into reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols.
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle.
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, obtains one
Secondary mixed raw material.
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material.
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting is squeezed
Out, high-fire resistance TPU material can be obtained.
Preferably, the stirring rate is 200 rpms to 250 rpms.
Preferably, the mixing condition be 90 degrees Celsius to 100 degrees Celsius of temperature, revolving speed be 100 rpms extremely
120 rpms.
Preferably, the anti-hydrolysis agent includes bisphenol A diglycidyl ether 40%, polycarbodiimide 30% and ethylene
Three isopropoxy silane 30% of base.
Preferably, the antioxidant is propionic acid n-octadecyl alcohol ester.
Preferably, the chain extender is hexylene glycol, the one or more of glycerol, trimethylolpropane, diethylene glycol (DEG) mix
Close object.
Preferably, the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
Preferably, the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute.
P2, by silane coupling agent using hexamethylene be diluted to mass percent be 1:5 to 1:7, obtain dilute solution
500 milliliters to 700 milliliters.
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms to carry out
Even stirring, promotes homogeneous reaction, continues 1 hour to 2 hours.
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene to wave
Hair, can be obtained heat-resisting additive.
Preferably, the biopolyol uses rice husk polylol, castor oil-base polyalcohol and epoxy soybean
One kind of based oil.
Claims (10)
1. a kind of biology base TPU material and preparation method thereof with high-fire resistance, it is characterised in that: this has high-fire resistance
Biology base TPU material includes biopolyol 40%-50%, diisocyanate 25%-40%, anti-hydrolysis agent 5%-8%, antioxidant
The double stearoylketene amine crosslinker 2%-5% of 3%-6%, chain extender 1%-5%, ethenylidene, heat-resisting additive 5%-8% and reduced graphene
5%-12%。
2. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1
In: the biology base TPU material and preparation method thereof with high-fire resistance includes the following steps:
S1, the pure and mild antioxidant of bio-based polyhydric is added in reaction kettle, is heated to 90 degrees Celsius to 95 degrees Celsius, heat preservation 2 is small
Up to 3 hours；
S2, diisocyanate is preheated to 60 degrees Celsius to 65 degrees Celsius, be then added in reaction kettle, uniform stirring 1 hour
To 2 hours, reaction obtained polyurethane prepolymer；
S3, chain extender and the double stearoylketene amine crosslinkers of ethenylidene are preheated to 50 degrees Celsius to 60 degrees Celsius respectively, are added to
In reaction kettle, uniform stirring 1 hour to 2 hours, production polyurethane elastomer is reacted with polyether polyols；
S4, polyurethane elastomer is passed through into extruder melting extrusion, obtains TPU particle；
S5, TPU particle and thermal reduction graphene are put into mixer, mixing mixes 15 minutes to 20 minutes, is once mixed
Close raw material；
S6, heat-resisting additive is added to inside mixer, mixing 45 minutes to 50 minutes, obtains secondary mixed raw material；
S7, secondary mixed raw material is added to inside screw extruder, under 150 degrees Celsius to 180 degrees Celsius, melting extrusion,
High-fire resistance TPU material can be obtained.
3. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 2
In: the stirring rate is 200 rpms to 250 rpms.
4. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 2
In: the mixing condition is 90 degrees Celsius to 100 degrees Celsius of temperature, and revolving speed is 100 rpms to 120 rpms.
5. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1
In: the anti-hydrolysis agent includes bisphenol A diglycidyl ether 40%-45%, polycarbodiimide 30%-35% and three isopropyl of vinyl
Oxysilane 20%-30%.
6. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1
In: the antioxidant is propionic acid n-octadecyl alcohol ester.
7. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1
In: the chain extender is one or more mixtures of hexylene glycol, glycerol, trimethylolpropane, diethylene glycol (DEG).
8. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1
In: the heat-resisting additive includes diatomite and montmorillonite, and mass percent is 1:1.
9. feature exists according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 8
In: the preparation method of the heat-resisting additive includes the following steps:
P1, diatomite and montmorillonite are proportionally added into high-speed mixer, uniform stirring is mixed, stirring rate 750
800 rpms are gone to per minute；
P2, to be diluted silane coupling agent to mass percent using hexamethylene be 1:5 to 1:7, obtains the milli of dilute solution 500
Rise to 700 milliliters；
P3, dilute solution is added to the mixer in four times, is reduced to 120 rpms to 150 rpms uniformly to be stirred
It mixes, promotes homogeneous reaction, continue 1 hour to 2 hours；
P4, after completion of the reaction, the high-speed stirred under 1200 rpms to 1300 rpms speed accelerate hexamethylene volatilization,
Heat-resisting additive can be obtained.
10. according to a kind of biology base TPU material and preparation method thereof with high-fire resistance of the claim 1, feature
Be: the biopolyol is using the one of rice husk polylol, castor oil-base polyalcohol and epoxy soybean oil base polyol
Kind.
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| Country | Link |
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| CN (1) | CN109181277A (en) |
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