CN101096406B - Cold curing polyurethane high-resilience foam component material and preparation method thereof - Google Patents
Cold curing polyurethane high-resilience foam component material and preparation method thereof Download PDFInfo
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- CN101096406B CN101096406B CN2006100450901A CN200610045090A CN101096406B CN 101096406 B CN101096406 B CN 101096406B CN 2006100450901 A CN2006100450901 A CN 2006100450901A CN 200610045090 A CN200610045090 A CN 200610045090A CN 101096406 B CN101096406 B CN 101096406B
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Abstract
The invention discloses a high-rebound foam combining material of cold curing polyurethane, which consists of component A and component B, wherein the component A is composed of polyether polyol, polymer polyol, crosslinking agent, foam stabilizer, foaming agent and catalyst; the component B is toluene diisocyanate (TDI); the rate of component A and component B is 100: 30-40.The component A is doing under normal temperature, which saves energy and reduces energy-supplying equipment and complex operation.
Description
Technical field
The invention belongs to the method that the full TDI of a kind of usefulness (tolylene diisocyanate) makes the high rebound foam of cold curing polyurethane, particularly make the combination material of the high rebound foam of cold curing polyurethane.
Background technology
High resilience type cold curing polyurethane foam plastics, promptly " HR " foam is the new variety in the polyurethane foam.Because of its excellent physical and mechanical properties (high rebound resilience, low hysteresis loss), higher compression load ratio (the sag factor) is so have significant seat sense comfortableness, good anti-fatigue performance, the feel on similar latex surface, air permeability and good and flame retardant properties; While is with short production cycle, efficient is high, power consumption is low, replaces traditional thermomaturation urethane foam gradually, is widely used in industry fields such as automobile, motorcycle, train, furniture, as seat cushion, backrest, mattress, the headrest etc.
At present, being applied to the cold curing polyurethane foam of seat cushion, generally be with mixing isocyanic ester system, or the modified isocyanate system reaches the purpose of cold-curing.And hot cure foam generally is TDI (tolylene diisocyanate) system, because the TDI activity is low, functionality is 2, and therefore only being used for the thermomaturation system is difficult to the cold-curing system.
The objective of the invention is successfully full TDI to be used for the cold-curing system to above weak point, when reaching the cold-curing purpose, elasticity, intensity have reached the requirement of GB.
Summary of the invention
Technical problem to be solved by this invention provides a kind of cold curing polyurethane high-resilience foam component material and preparation method thereof, utilizes full tolylene diisocyanate to be applied to the making of cold curing high resilience type flex foam.
Cold curing polyurethane high-resilience foam component material of the present invention is characterized in that being made up of A component and B component, wherein:
The A component does, by weight percentage:
Polyether glycol: 20-70;
Polymer polyatomic alcohol: 20-70;
Linking agent: 0.5-5;
Suds-stabilizing agent 0.1-2.0;
Whipping agent: 2-6;
Catalyzer: 0.1-2.0
The B component is:
Tolylene diisocyanate (TDI)
Said polyether glycol is 3 functionality, and molecular weight is 5000-7000, the low-unsaturated polyether polyatomic alcohol of proportion of primary OH groups >=65%.
Said polymer polyatomic alcohol, for vinylbenzene or acrylonitrile graft copolymer, the polymer polyatomic alcohol of solid content >=30%.
Said linking agent is for being initiator with the tolylene diamine, and molecular weight is at the polyether glycol of 200-300.
Said whipping agent preferably adopts water.
The preferred B8737 of said suds-stabilizing agent, B8681 (Germany, Gao Shi Mitt USA Corporation produces, the commercially available prod).
Said catalyzer is a tertiary amine catalyst, preferred triethylene diamine and dibutyltin dilaurate.
The method for preparing cold curing polyurethane high-resilience foam component material; Mainly be preparation A component material: load weighted polyether glycol, polymer polyatomic alcohol are packed into stir in the reaction kettle earlier; Add load weighted linking agent, catalyzer, whipping agent, stablizer then; Reaction was stirred 3-4 hour at normal temperatures, got final product barrelling;
B component material is full tolylene diisocyanate, directly barrelling.
During use, with A, B component material by A: B=100: 30～40 weight proportion mixes and promptly can be made into high resilience cold-cured polyurethane foams.
Advantage of the present invention: A component material is to carry out at normal temperatures, not only save energy but also reduce energy supply equipment and loaded down with trivial details operation.Producing high resilience cold-cured polyurethane foams material by A, B component material also is under normal temperature, normal pressure, to carry out, and technology is simple, and is easy to operate, and it is low to volatilize, the no three wastes, and constant product quality, production cost is low.Through detecting high resilience cold-cured polyurethane foams product quality indicator, can reach:
Density: 40～60Kg/m
3
Tensile strength: >=120kpa
Elongation: >=100%
Resilience: >=60%
Sag factor: >=2.5
Performance has reached the requirement of the high resilience flexible urethane foam of GBT2080-95 fully.
Embodiment
Below in conjunction with embodiment the present invention is described, but does not limit the present invention.
Embodiment 1:
100 kilograms in preparation A component material, weighing respectively: (3 functionality, molecular weight are 5000 to polyether glycol; Proportion of primary OH groups 70%) 52 kilograms, 42 kilograms of polymer polyatomic alcohols (styrene-grafted copolymerization, solid content 30%); 2.5 kilograms of linking agents (be initiator, molecular weight is 200 polyether glycol) with the tolylene diamine, 0.5 kilogram of catalyzer triethylene diamine; 2.5 kilograms in water, 0.5 kilogram of B8737.Load weighted polyether glycol, polymer polyatomic alcohol material packed into stir in the reaction kettle, add linking agent, catalyzer, whipping agent, the stablizer that weighs up then respectively, stir composite reaction at normal temperatures; Stirred 3.5 hours; Taking-up is tested, and satisfies processing parameter, sends satisfied foam; Promptly get A component specification product, from reaction kettle, take out the barrelling warehouse-in.
With A, B component material by A: B=100: 30 weight proportions are mixed and made into high resilience cold-cured polyurethane foams through the testing product quality index.
Embodiment 2:
100 kilograms in preparation A component material, weighing respectively: (3 functionality, molecular weight are 7000 to polyether glycol; Proportion of primary OH groups 65%) 68 kilograms, 28 kilograms of polymer polyatomic alcohols (acrylonitrile graft copolymer, solid content 45%); 0.5 kilogram of linking agent (be initiator, molecular weight is 200 polyether glycol) with the tolylene diamine, triethylene diamine: 0.2 kilogram; 2 kilograms in water, 1.3 kilograms of B8737.Load weighted polyether glycol, polymer polyatomic alcohol material packed into stir in the reaction kettle, add linking agent, catalyzer, whipping agent, the stablizer that weighs up then respectively, stir composite reaction at normal temperatures; Stirred 4 hours; Taking-up is tested, and satisfies processing parameter, sends satisfied foam; Promptly get A component specification product, from reaction kettle, take out the barrelling warehouse-in.
With A, B component material by A: B=100: 40 weight proportions are mixed and made into high resilience cold-cured polyurethane foams through the testing product quality index.
Embodiment 3:
100 kilograms in preparation A component material, weighing respectively: (3 functionality, molecular weight are 6000 to polyether glycol; Proportion of primary OH groups 70%) 30 kilograms, 59 kilograms of polymer polyatomic alcohols (acrylonitrile graft copolymer, solid content 40%); 4 kilograms of linking agents (be initiator, molecular weight is 300 polyether glycol) with the tolylene diamine, 1.5 kilograms of dibutyltin dilaurates; 4 kilograms in water, 1.5 kilograms of B8681.Load weighted polyether glycol, polymer polyatomic alcohol material packed into stir in the reaction kettle, add linking agent, catalyzer, whipping agent, the stablizer that weighs up then respectively, stir composite reaction at normal temperatures; Stirred 3 hours; Taking-up is tested, and satisfies processing parameter, sends satisfied foam; Promptly get A component specification product, from reaction kettle, take out the barrelling warehouse-in.
With A, B component material by A: B=100: 40 weight proportions are mixed and made into high resilience cold-cured polyurethane foams through the testing product quality index.
Claims (2)
1. a cold curing polyurethane high-resilience foam component material is characterized in that being made up of A component and B component, and wherein: the A component does, by weight percentage:
The B component is: tolylene diisocyanate;
During use, with A, B component material by A: B=100: 30～40 weight proportion mixes and promptly can be made into high resilience cold-cured polyurethane foams;
Said polyether glycol is 3 functionality, and molecular weight is 5000-7000, the low-unsaturated polyether polyatomic alcohol of proportion of primary OH groups >=65%;
Said polymer polyatomic alcohol, for vinylbenzene or acrylonitrile graft copolymer, the polymer polyatomic alcohol of solid content >=30%;
Said linking agent is initiator with the tolylene diamine, and molecular weight is at the polyether glycol of 200-300;
Said suds-stabilizing agent is the commercially available prod B8737 that German Gao Shi Mitt USA Corporation produces, B8681;
Said catalyzer is triethylene diamine and dibutyltin dilaurate;
Said whipping agent is a water.
2. method for preparing the said cold curing polyurethane high-resilience foam component material of claim 1 is characterized in that:
Preparation A component material: load weighted polyether glycol, polymer polyatomic alcohol are packed into stir in the reaction kettle earlier, add load weighted linking agent, catalyzer, whipping agent, stablizer then, reaction was stirred 3-4 hour at normal temperatures, got final product barrelling;
B component material is full tolylene diisocyanate, directly barrelling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2006100450901A CN101096406B (en) | 2006-06-26 | 2006-06-26 | Cold curing polyurethane high-resilience foam component material and preparation method thereof |
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| CN2006100450901A CN101096406B (en) | 2006-06-26 | 2006-06-26 | Cold curing polyurethane high-resilience foam component material and preparation method thereof |
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| CN101096406A CN101096406A (en) | 2008-01-02 |
| CN101096406B true CN101096406B (en) | 2012-07-04 |
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Owner name: SHANDONG INOV POLYURETHANE CO., LTD. Free format text: FORMER NAME: SHANGDONG DONG DA INOV POLYUERTHANE CO., LTD. |
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Address after: 255000, No. 109, Tai Mo Road, hi tech Zone, Shandong, Zibo Patentee after: SHANDONG INOV POLYURETHANE CO., LTD. Address before: 255000, No. 109, Tai Mo Road, hi tech Zone, Shandong, Zibo Patentee before: Shangdong Dong Da Inov Polyuerthane Co., Ltd. |