CN109593181A - Polyurethane foam and preparation method thereof - Google Patents
Polyurethane foam and preparation method thereof Download PDFInfo
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- CN109593181A CN109593181A CN201811515598.2A CN201811515598A CN109593181A CN 109593181 A CN109593181 A CN 109593181A CN 201811515598 A CN201811515598 A CN 201811515598A CN 109593181 A CN109593181 A CN 109593181A
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- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
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- 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
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
- C08K5/3435—Piperidines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/372—Sulfides, e.g. R-(S)x-R'
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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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
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Abstract
The invention discloses a kind of polyurethane foams and preparation method thereof.The polyurethane foam prepares the raw material components that raw material includes following each mass percent: polyethers 40%-55%, white oil 10%-15%, silicone oil 0.3%-0.4%, catalyst 0.5%-3.5%, 2,4 toluene diisocyanate 25%-30%, water 2%-15% and composite antioxidant 0.5%-1.5%.The preparation method of polyurethane foam includes following steps: composite antioxidant is added after polyethers, white oil, silicone oil, the triethylene diamine solution of mass fraction 33%, catalyst and water are mixed, it stirs evenly to form mixed liquor, 2 are added into the mixed liquor again, 4- toluene di-isocyanate(TDI), after mixing evenly, molding, obtains the polyurethane foam.The polyurethane foam is susceptible to Yellowing.
Description
Technical field
The present invention relates to a kind of polyurethane foams and preparation method thereof.
Background technique
Polyurethane foam is a kind of novel high molecular synthetic material, and unique properties are widely used.Polyurethane foam
With light weight, heat preservation and insulation is good, sound-absorbing and buffering excellent in vibration resistance, with relatively high compressive strength and relatively good
Dimensional stability.Currently, polyurethane foam is easy to generate Yellowing in the application.The original of polyurethane foam generation Yellowing
Because including: the hot xanthochromia due to caused by high temperature 1. in foaming process；2. the gas of nitrogen oxides and ozone in ingress of air
Smoked xanthochromia；3. by xanthochromia caused by the ultraviolet irradiation in light；4. some other chemical substance reacts caused Huang
Become.Currently, being easy to generate Yellowing for polyurethane foam, there is no a kind of good solutions.
Summary of the invention
Based on this, it is necessary to provide a kind of polyurethane foam and preparation method thereof for being susceptible to Yellowing.
A kind of polyurethane foam, the polyurethane foam prepare the raw material group that raw material includes following each mass percent
Point: polyethers 40%-55%, white oil 10%-15%, silicone oil 0.3%-0.4%, catalyst 0.5%-3.5%, 2,4- toluene two are different
Cyanate 25%-30%, water 2%-5% and composite antioxidant 0.5%-1.5%.
The polyurethane foam prepares the raw material that raw material includes following each mass percent in one of the embodiments,
Component: polyethers 45%-50%, white oil 12%-15%, silicone oil 0.3%-0.4%, catalyst 0.5%-3.5%, 2,4- toluene two
Isocyanates 27%-30%, water 2%-15% and composite antioxidant 0.5%-1.5%.
The catalyst is organo-metallic catalyst and/or amines catalyst in one of the embodiments,.
The amines catalyst is three second of N- amino morpholine or mass fraction 33% in one of the embodiments,
Alkene diamine solution.
The organo-metallic catalyst is dibutyl tin dilaurate or stannous octoate in one of the embodiments,.
The composite antioxidant is antioxidant 215, antioxidant 225, antioxidant 561, antioxygen in one of the embodiments,
One or more of 900, No. 96 antioxidant of agent, CF-400 antioxidant and 89-D antioxidant；
Wherein, the antioxidant 215, the antioxidant 225, the antioxidant 561 are anti-by antioxidant 1010 and auxiliary
Oxygen agent 168 mixes；
The antioxidant 900 is mixed by antioxidant 1076 and auxiliary antioxidant 168；
No. 96 antioxidant is by antioxidant 1135, antioxidant PDP, antioxidant 1010, anti-oxidant DLTP, light stabilizer
292, antioxidant 329, dioctyl phthalate, R type TiO2, antioxidant 144, antioxidant RPG and fluorescent whitening agent FP-
127 mix.
The composite antioxidant is No. 96 antioxidant in one of the embodiments,.
A kind of preparation method of the polyurethane foam, includes the following steps:
It is added after polyethers, white oil, silicone oil, the triethylene diamine solution of mass fraction 33%, catalyst and water are mixed
Composite antioxidant stirs evenly to form mixed liquor, then 2,4- toluene di-isocyanate(TDI) is added into the mixed liquor, stirs evenly
Afterwards, it forms, obtains the polyurethane foam.
After 2, the 4- toluene di-isocyanate(TDI) is added in one of the embodiments, mixing time 3s-4s.
Include the following steps: when 2, the 4- toluene di-isocyanate(TDI) being added in one of the embodiments, to described mixed
It closes and is stirred when the 2,4 toluene diisocyanate being added in liquid.
Above-mentioned polyurethane foam is susceptible to Yellowing.Polyurethane foam of the invention is by being added compound anti-oxidation
Agent can be improved the antioxygenic property of polyurethane foam, reduce the xanthochromia of polyurethane foam.In polyurethane foam of the invention
Composite antioxidant is compounded by the antioxidant of two or more different type or same type different cultivars, in foam material
It can learn from other's strong points to offset one's weaknesses in material, show synergistic effect, best thermo oxidative aging effect is reached with minimum additional amount, least cost.
When synergistic effect refers to that two or more auxiliary agent is used in combination, Application effects are greater than the effect that every kind of auxiliary agent is used alone
It should sum it up, i.e. 1+1 > 2.It is compound using antioxidant, the antioxidant of high polyurethane foam can be greatly enhanced.
Detailed description of the invention
Fig. 1 be the different composite antioxidant of equivalent is added in an embodiment and the F value of product that does not process at any time
Trend chart；
Fig. 2 is that the F value of the different composite antioxidant of equivalent but the product that has done high-temperature process is added in an embodiment at any time
Between trend chart；
Fig. 3 is the polyurethane foam of the polyurethane foam and addition 89-D antioxidant without antioxidant addition in an embodiment
Comparison diagram；
Fig. 4 is the polyurethane foam of the polyurethane foam and addition CF-400 antioxidant without antioxidant addition in an embodiment
The comparison diagram of foam；
Fig. 5 is the polyurethane foam of No. 96 antioxidant of polyurethane foam and addition without antioxidant addition in an embodiment
Comparison diagram.
Specific embodiment
The invention can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, mentioning
Purpose for these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
One embodiment of the invention provides a kind of polyurethane foam, a kind of polyurethane foam, the system of the polyurethane foam
Standby raw material includes the raw material components of following each mass percent: polyethers 40%-55%, white oil 10%-15%, silicone oil 0.3%-
0.4%, catalyst 0.5%-3.5%, 2,4 toluene diisocyanate 25%-30%, water 2%-5% and composite antioxidant
0.5%-1.5%.
Catalyst is organo-metallic catalyst and/or amines catalyst.When catalyst is organo-metallic catalyst, catalysis
The mass percent of agent is 3%-3.5%, and when catalyst is amines catalyst, the mass percent of catalyst is 0.5%-
0.8%.Amines catalyst includes the triethylene diamine solution (A-33) of N- amino morpholine or mass fraction 33%.Organic gold
Metal catalyst includes dibutyl tin dilaurate or stannous octoate.
Composite antioxidant be antioxidant 215, antioxidant 225, antioxidant 561,900, No. 96 antioxidant of antioxidant (or
96# antioxidant), CF-400 antioxidant (or CF-400# antioxidant) and 89-D antioxidant (or 89-D# antioxidant)
One or more of；CF-400# antioxidant, 89-D# antioxidant are the market universal product.
Antioxidant 215, antioxidant 225, antioxidant 561 are by antioxidant 1010 from auxiliary antioxidant 168 according to different
Mass ratio mixes, and antioxidant 215, antioxidant 225, antioxidant 561 are bought by Nanjing Milan company.
Antioxidant 900 is mixed by antioxidant 1076 and the 2:1 in mass ratio of auxiliary antioxidant 168.
96# antioxidant by antioxidant 1135 namely β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid isoctanol ester 30g,
Antioxidant PDP namely poly- (dipropylene glycol) phenyl phosphites 30g, antioxidant 1010 namely four [β-(3,5- di-t-butyl -4-
Hydroxy phenyl) propionic acid] 30g, the double lauryl 30g of anti-oxidant DLTP namely thio-2 acid, light stabilizer 292 namely it is bis- (1,2,
2,6,6- pentamethyl -4- piperidyl) sebacate 25g, antioxidant 329 15g, DOP namely dioctyl phthalate 20g, R
Type TiO21.2g, 144 1g of antioxidant, antioxidant RPG 93.3g and fluorescent whitening agent FP-127 14.5g are mixed.
The preparation method of above-mentioned polyurethane foam, includes the following steps:
It is added after polyethers, white oil, silicone oil, the triethylene diamine solution of mass fraction 33%, catalyst and water are mixed
Composite antioxidant stirs evenly to form mixed liquor, and it is different that 2,4- toluene two is added into mixed liquor again while being stirred liquid
Cyanate is molded after stirring 3s-4s, obtains polyurethane foam.
Above-mentioned polyurethane foam is susceptible to Yellowing.Polyurethane foam of the invention is by being added compound anti-oxidation
Agent can be improved the antioxygenic property of polyurethane foam, reduce the xanthochromia of polyurethane foam.
Embodiment 1
A kind of polyurethane foam is present embodiments provided, the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers 45%, white oil 15%, silicone oil 0.4%, catalyst 3.5%, 2,4 toluene diisocyanate 30%, water
5% and composite antioxidant 1.1%.Catalyst is the triethylene diamine solution and stannous octoate (T-9) of mass fraction 33%.
Composite antioxidant is 96# antioxidant.
Embodiment 2
A kind of polyurethane foam is present embodiments provided, the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers 55%, white oil 10%, silicone oil 0.3%, catalyst 2.2%, 2,4 toluene diisocyanate 30%, water
2% and composite antioxidant 0.5%.Catalyst is the triethylene diamine solution and stannous octoate (T-9) of mass fraction 33%.
Composite antioxidant is 96# antioxidant.
Embodiment 3
A kind of polyurethane foam is present embodiments provided, the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g, water 2g and composite antioxidant 0.9g.Composite antioxidant is 96# antioxidant.
Embodiment 4
A kind of polyurethane foam is present embodiments provided, the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g, water 2g and composite antioxidant 0.9g.Composite antioxidant is 89-D# antioxidant.
Embodiment 5
A kind of polyurethane foam is present embodiments provided, the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g, water 2g and composite antioxidant 0.9g.Composite antioxidant is CF-400# antioxidant.
Comparative example 1
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.96# antioxidant 0.45g and 701# polymerization inhibitor 0.03g is added.
Comparative example 2
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.96# antioxidant 0.45g and 701# polymerization inhibitor 0.045g is added.
Comparative example 3
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.Fluorescent whitening agent FP-127 0.051g and 701# polymerization inhibitor 0.045g is added.
Comparative example 4
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.96# antioxidant 0.45g and 701# polymerization inhibitor 0.06g is added.
Comparative example 5
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.Fluorescent whitening agent FP-127 0.051g and 701# polymerization inhibitor 0.06g is added.
Comparative example 6
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.Fluorescent whitening agent FP-127 0.102g is added.
Comparative example 7
This comparative example provides a kind of polyurethane foam, and the raw material for preparing of polyurethane foam includes following each mass percent
Raw material components: polyethers: 47.4g, white oil 12g, silicone oil 0.33g, catalyst A-33 3g, catalyst T-9 0.54g, 2,4- first
Phenylene diisocyanate 27.6g and water 2g.
One, sample treatment
The polyurethane foam products number consecutively that embodiment 3-5 and comparative example 1-7 are prepared is No. 1-10, such as table
Shown in 1.And by 1-10 polyurethane foam products all by size uniformly, cross section it is smooth be cut into 3 pieces, and be numbered (such as
3 pieces that No. 1 polyurethane foam products are cut number respectively as 1- 1., 1- 2., 1- 3., No. 2 polyurethane foam products cut 3
Block number respectively be 2- 1., 2- 2., 2- 3.).
Table 1
(1) 1. number being put into 200 DEG C of baking oven for 1-10 polyurethane foam products is toasted into 150s-180s, i.e., it is high
Temperature processing.Then it is directly hung over to light preferably local, guarantees that environment locating for each polyurethane foam products is identical.
(2) 2. 1-10 polyurethane foam products number are not done into high-temperature process, but with 1-10 polyurethane foam products
1. number hang the same place, guarantee 1-10 polyurethane foam products 1. number and 1-10 polyurethane foam products 2. number
The environment hung in drying in the air is the same.
(3) 3. number being loaded 1-10 polyurethane foam products with the polybag of the pollution-free cleaning of black, is placed on dark
It is stored under the conditions of free of contamination.
(4) every 2 days to 1-10 polyurethane foam products 1., 2., 3. number polyurethane foam products measuring brightness
Instrument carries out the measurement of fluorescent whiteness, the variation of analysis of fluorescence whiteness.
Two, result and analysis
1, total whiteness value of sample
To the total whiteness value for handle preceding sample of 1-10 polyurethane foam products and fluorescent whiteness value such as 2 institute of table
Show.
Table 2
It can be obtained by table 4, antioxidant and no plus the resulting foam of antioxidant total whiteness value, which is added, apparent difference, by
This knows that composite antioxidant used has apparent whitening effect.
2, after high-temperature process polyurethane foam products fluorescent whiteness value F
After the 1. number polyurethane foam products progress high-temperature process of 1-10 polyurethane foam products, polyurethane foam products
Fluorescent whiteness value F it is as shown in table 3.
Table 3
It can be obtained by table 5, over time, the fluorescent whiteness value of sample is all decreased obviously the sample after high-temperature process,
Wherein the amplitude of the 1. number polyurethane foam products decline of No. 8 polyurethane foam products is maximum.It may lead to auxiliary agent because of high temperature
Oxidation resistance decline.
3, the fluorescent whiteness value F of polyurethane foam products after drying in the air is hung
The 2. number polyurethane foam products of 1-10 polyurethane foam products carry out hang dry in the air after, polyurethane foam products it is glimmering
Light whiteness value F is as shown in table 4.
Table 4
It can be obtained by table 6, directly hang the F value variation of the 2. number polyurethane foam products for the 1-10 polyurethane foam products dried in the air
Amplitude it is smaller.
4, the fluorescent whiteness value F of untreated polyurethane foam products
The untreated fluorescent whiteness value F of 3. number polyurethane foam products of 1-10 polyurethane foam products such as 5 institute of table
Show.
Table 5
As shown in Table 6, over time without the sample strip of any processing, the variation of fluorescent whiteness value is smaller.And
3., 3., 3. this 3 sample strip variations are relatively minimal by 9- by 7- by 5-.
5, influence of the different composite antioxidant to F value (fluorescent whiteness)
Different composite antioxidant is added
The different composite antioxidant of equivalent is added and the F value of polyurethane foam products that does not process change with time as
Shown in table 6 and Fig. 1.
Table 6
By table 6 and Fig. 1 it is found that 89-D# antioxidant, CF-400# antioxidant and 96# antioxidant this 3 kinds of antioxidant are added,
Under conditions of no other influences, the inoxidizability effect of polyurethane foam products is all close.
6, the F value of the polyurethane foam products of high-temperature process changes with time
The change of the F value of the addition different composite antioxidant of equivalent but the polyurethane foam products for having done high-temperature process at any time
Change as shown in table 7 and Fig. 2.
By table 7 and Fig. 2 it is found that being separately added into the polyurethane of 89-D# antioxidant, CF-400# antioxidant and 96# antioxidant
After high-temperature process, with the variation of time, the polyurethane of CF-400# antioxidant and 96# antioxidant is added in froth pulp
The opposite polyurethane foam products that 89-D# antioxidant is added of the fluorescent whiteness of froth pulp are substantially reduced.
7, No. 1 by high-temperature process, No. 2, No. 3, No. 10 polyurethane foam products, using illumination in 20 days, No. 10
It is as in Figure 3-5 with No. 3 comparison diagrams with No. 2, No. 10 with No. 1, No. 10.
No. 10 polyurethane foam products (left side) of no antioxidant addition and No. 1 polyurethane that 89-D# antioxidant 0.9g is added
The comparison diagram of froth pulp (right side) is as shown in Figure 3.
No. 10 polyurethane foam products (left side) of no antioxidant addition and No. 1 poly- ammonia that CF-400# antioxidant 0.9g is added
The comparison diagram of ester froth pulp (right side) is as shown in Figure 4.
No. 10 polyurethane foam products (left side) of no antioxidant addition and No. 1 polyurethane foam that 96# antioxidant 0.9g is added
The comparison diagram of foam product (right side) is as shown in Figure 5.
By Fig. 3, Fig. 4, Fig. 5 it is found that addition antioxidant has apparent color inhibition effect picture 3, figure to polyurethane foam products
4, the image of the left position in Fig. 5 is that No. 10 polyurethane foam products do not add composite antioxidant, it can be seen that its is bright
It is aobvious to turn yellow.And the image of the location right in Fig. 3, Fig. 4, Fig. 5 is 1,2, No. 3 addition composite antioxidant, it can be seen that poly- ammonia
The color of ester froth pulp is all especially fair and clear, illustrates that composite antioxidant has apparent whitening effect to polyurethane foam products.
Polyurethane foam products of the invention add composite antioxidant in the preparation, play significantly to polyurethane foam
Anti-oxidant xanthochromia effect.After carrying out different disposal to laboratory sample, the fluorescent whiteness of the sample by high-temperature process is obtained
Value declines most fast, since hot conditions change the structure of auxiliary agent, and whiteness is caused to reduce；By to respectively plus
Enter the analysis of this whiteness value of 3 samples after processing of the CF-400# antioxidant, 96# antioxidant, 89-D# antioxidant of equivalent,
The inoxidizability that 96# antioxidant is added is more preferable.
Composite antioxidant in polyurethane foam of the invention, it is different by two or more different type or same type
The antioxidant of kind compounds, and can learn from other's strong points to offset one's weaknesses in foamed material, show synergistic effect, with minimum additional amount, minimum
Cost and reach best thermo oxidative aging effect.When synergistic effect refers to that two or more auxiliary agent is used in combination, answer
It is greater than the effect adduction that every kind of auxiliary agent is used alone, i.e. 1+1 > 2 with effect.Polyurethane foam of the invention is multiple using antioxidant
It closes, the antioxidant of high polyurethane foam can be greatly enhanced.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of polyurethane foam, which is characterized in that the raw material for preparing of the polyurethane foam includes following each mass percent
Raw material components: polyethers 40%-55%, white oil 10%-15%, silicone oil 0.3%-0.4%, catalyst 0.5%-3.5%, 2,4-
Toluene di-isocyanate(TDI) 25%-30%, water 2%-15% and composite antioxidant 0.5%-1.5%.
2. polyurethane foam according to claim 1, which is characterized in that the raw material for preparing of the polyurethane foam includes such as
Under each mass percent raw material components: polyethers 45%-50%, white oil 12%-15%, silicone oil 0.3%-0.4%, catalyst
0.5%-3.5%, 2,4 toluene diisocyanate 27%-30%, water 2%-5% and composite antioxidant 0.5%-1.5%.
3. polyurethane foam according to claim 1 or 2, which is characterized in that the catalyst is organo-metallic catalyst
And/or amines catalyst.
4. polyurethane foam according to claim 3, which is characterized in that the amines catalyst be N- amino morpholine or
The triethylene diamine solution of person's mass fraction 33%.
5. polyurethane foam according to claim 3, which is characterized in that the organo-metallic catalyst is tin dilaurate two
Butyl tin or stannous octoate.
6. polyurethane foam according to claim 1 or 2, which is characterized in that the composite antioxidant be antioxidant 215,
Antioxidant 225, antioxidant 561, one in antioxidant 900, No. 96 antioxidant, CF-400 antioxidant and 89-D antioxidant
Kind is a variety of.
7. polyurethane foam according to claim 6, which is characterized in that the composite antioxidant is No. 96 antioxidant.
8. a kind of preparation method of polyurethane foam described in claim 1-7 any one, which is characterized in that including walking as follows
It is rapid:
It is added after polyethers, white oil, silicone oil, the triethylene diamine solution of mass fraction 33%, catalyst and water are mixed compound
Antioxidant stirs evenly to form mixed liquor, then 2,4- toluene di-isocyanate(TDI) is added into the mixed liquor, after mixing evenly,
Molding, obtains the polyurethane foam.
9. the preparation method of polyurethane foam according to claim 8, which is characterized in that it is different that 2, the 4- toluene two is added
After cyanate, mixing time 3s-4s.
10. the preparation method of polyurethane foam according to claim 8, which is characterized in that 2, the 4- toluene two is added
Include the following steps: to be stirred when the 2,4 toluene diisocyanate being added into the mixed liquor when isocyanates.
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| CN201811515598.2A CN109593181A (en) | 2018-12-12 | 2018-12-12 | Polyurethane foam and preparation method thereof |
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| CN201811515598.2A CN109593181A (en) | 2018-12-12 | 2018-12-12 | Polyurethane foam and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120322327A1 (en) * | 2010-03-03 | 2012-12-20 | Gel Industry S.R.L. | Product with absorbed gel |
| CN103275296A (en) * | 2013-04-16 | 2013-09-04 | 无锡吉兴木桥高分子材料科技有限公司 | Polyurethane foam for wet-method preparation and preparation method thereof |
| CN106553297A (en) * | 2016-10-20 | 2017-04-05 | 沈阳化工大学 | A kind of palm wax and silicones Compositional type high-rebound polyurethane foaming product releasing agent |
| CN108017766A (en) * | 2016-11-01 | 2018-05-11 | 中国石油化工集团公司 | It is a kind of to be used to preventing or mitigating composite antioxidant and its application that soft polyurethane foam reddens |
-
2018
- 2018-12-12 CN CN201811515598.2A patent/CN109593181A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120322327A1 (en) * | 2010-03-03 | 2012-12-20 | Gel Industry S.R.L. | Product with absorbed gel |
| CN103275296A (en) * | 2013-04-16 | 2013-09-04 | 无锡吉兴木桥高分子材料科技有限公司 | Polyurethane foam for wet-method preparation and preparation method thereof |
| CN106553297A (en) * | 2016-10-20 | 2017-04-05 | 沈阳化工大学 | A kind of palm wax and silicones Compositional type high-rebound polyurethane foaming product releasing agent |
| CN108017766A (en) * | 2016-11-01 | 2018-05-11 | 中国石油化工集团公司 | It is a kind of to be used to preventing or mitigating composite antioxidant and its application that soft polyurethane foam reddens |
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Application publication date: 20190409 |