CN102925049B - Flame-retardant polyurethane spray-coating sealing material and preparation method thereof - Google Patents
Flame-retardant polyurethane spray-coating sealing material and preparation method thereof Download PDFInfo
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- CN102925049B CN102925049B CN201210427632.7A CN201210427632A CN102925049B CN 102925049 B CN102925049 B CN 102925049B CN 201210427632 A CN201210427632 A CN 201210427632A CN 102925049 B CN102925049 B CN 102925049B
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Abstract
The invention relates to a flame-retardant polyurethane spray-coating sealing material and a preparation method thereof. The flame-retardant polyurethane spray-coating sealing material is composed of a component A and a component B in a weight ratio of 1:1, wherein the component A is prepared from the following components in percentage by weight: 10-20% of polyether glycol A, 10-20% of polyether glycol B, 15-25% of polyester polyol, 0.5-1.5% of foam stabilizer, 0.5-1% of water, 2.5-7.5% of catalyst A, 1-2.5% of catalyst B, 16-24% of foaming agent, 10-20% of flame retardant A and 5-15% of flame retardant B; and the component B is polyphenyl-polymethylene polyisocyanate. The preparation method comprises the following steps: preparing the raw materials, preparing the component A, and mixing the component A and component B in the weight ratio of 1:1. The flame-retardant polyurethane spray-coating sealing material has the advantages of favorable foam sealability, excellent flame retardancy and high product stability.
Description
Technical field
The invention belongs to the field of chemical synthesis, be specifically related to a kind of flame retardant polyurethane spraying enclosed material being applied to colliery wall and preparation method thereof.
Background technology
In coal mine roadway tunneling process, its surface rock easily suffers weathering and damages, and the accident that falling rocks pounds people easily occurs, and therefore surface, tunnel needs to carry out coating processing.By to Kong Jue lane rib and top board spray treatment, effectively can prevent mine air leakage, prevent and treat the coal in crushed coal column and sealed area and combustible oxidation nature, reduce to the healthy harm caused of mine personnel, reduce the extra power consumption because mine air leakage causes because obnoxious flavour enters airway simultaneously.In addition, the fire dam that current mine fire sealing and change are ventilated adopts masonry bond mostly, carries out surface spraying, can strengthen its resistance to air loss, effectively can prevent gas leakage to fire dam.
Due to polyurethane coating enclosed material excellent performance, constructing operation is convenient and swift, be used widely in the industry of colliery gradually, but the spraying enclosed material used at present is without fire-retardant finish, foam without fire-retardant finish very easily burns in atmosphere, has very large potential hazard to the lives and properties of workman under the normal exploitation in colliery and ore deposit.Therefore, require that the polyurethane coating enclosed material used has fire-resistant, flame retardant resistance.The method that traditional urethane foam improves flame retardant properties adds the ignition-proof elements such as halogen, nitrogen, phosphorus, antimony in the foam, but this method addition is high, is difficult to ensureing that the prerequisite of urethane physicals is issued to flame-retardancy requirements.
Summary of the invention
For solving the problems of the technologies described above, the invention provides flame retardant polyurethane spraying enclosed material and preparation method thereof being applied to colliery wall of a kind of excellent flame retardancy, effect stability.
Technical scheme of the present invention is: flame retardant polyurethane spraying enclosed material, and be made up of component A and B component, the weight ratio of component A and B component is 1:1, wherein, component A is composed of the following components: polyether glycol A, 10 ~ 20, polyether glycol B, 10 ~ 20, polyester polyol, 15 ~ 25, suds-stabilizing agent, 0.5 ~ 1.5, water, 0.5 ~ 1, catalyst A, 2.5 ~ 7.5, catalyst B, 1 ~ 2.5, whipping agent, 16 ~ 24, fire retardant A, 10 ~ 20, fire retardant B, 5 ~ 15; Each numerical value is the weight percentage of each component shared by component A above; B component: polyphenyl polymethylene polyisocyanates; The weight ratio of component A and B component is 1:1.
The preparation method of above-mentioned flame retardant polyurethane spraying enclosed material, comprises the following steps:
A, preparation raw material: prepare raw material by following component:
Component A: polyether glycol A, 10 ~ 20, polyether glycol B, 10 ~ 20, polyester polyol, 15 ~ 25, suds-stabilizing agent, 0.5 ~ 1.5, water, 0.5 ~ 1, catalyst A, 2.5 ~ 7.5, catalyst B, 1 ~ 2.5, whipping agent, 16 ~ 24, fire retardant A, 10 ~ 20, fire retardant B, 5 ~ 15; Each numerical value is the weight percentage of each component shared by component A above;
B component: polyphenyl polymethylene polyisocyanates;
The weight ratio of component A and B component is 1:1;
B, preparation component A: according to component in step a and weight ratio, to drop into load weighted polyether glycol A, polyether glycol B, polyester polyol in mixing kettle and to stir; Then suds-stabilizing agent, water, catalyst A, catalyst B, whipping agent, fire retardant A, fire retardant B are added in mixing kettle and stir;
C, according to component in step a and weight ratio, B component is weighed for subsequent use;
When d, use, use double-liquid high pressure to spray grouting pump by weight 1:1 component A and B component and spray.
Wherein in component A:
Described polyether glycol A is 4-6 functionality, and molecular weight is the poly(propylene oxide) ethoxylated polyhydric alcohol of 300-1000.
Described polyether glycol B is flame retardant polyether polyol, selects trade mark B251(Germany Su Wei).
Institute's polyester polyol is 2 functionality, and molecular weight is the Aromatic Polyester Polyols of 250-400.
Organosilicone surfactants selected by described suds-stabilizing agent.
Described catalyst A is one or both the mixture in trolamine or diethanolamine.
Described catalyst B is N, N, N ', N ", N " and the mixture of any two or three in-pentamethyl-diethylenetriamine, 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine or dibutyl tin laurate.
HCFC-141b selected by described whipping agent, i.e. a fluorine ethylene dichloride (originating from Zhejiang three beautiful).
Described fire retardant A is phosphate ester flame retardants, preferably three (2-chloro isopropyl) phosphoric acid ester.
Described fire retardant B is expanded graphite based flame retardant, and preferred LM8089(manufacturer is that Qingdao connection is beautiful).
Described B component is polyphenyl polymethylene polyisocyanates.
Beneficial effect of the present invention is:
1, material of the present invention is by formulating of recipe, normal-temperature reaction, and speed of response is fast, the foam good leak tightness of formation, and flame retardant resistance is good;
2, stock liquid viscosity is low, good penetrability in coal and rock; Good with coal and rock cohesiveness;
3, material related raw material of the present invention is green, pollution-free, not containing volatile solvent, does not produce any toxic gas, harmless, meets colliery completely and sprays airtight use and environmental requirement;
4, the present invention obtains the simple to operate, easy to use of flame retardant polyurethane spraying enclosed material.
Embodiment
The present invention is illustrated below in conjunction with embodiment.
Embodiment 1:
1, preparation component A:100kg, weighs polyether glycol A(4 functionality, molecular weight 600 respectively), 12.5kg, polyether glycol B:B251(Germany Su Wei), 15kg, polyester polyol (2 functionality, molecular weight 370), 22kg, suds-stabilizing agent: the L6950(U.S. steps figure), 1kg, water, 0.8kg, catalyst A: trolamine, 5kg, catalyst B selects N, N, N ', N ", N "-pentamethyl-diethylenetriamine, the mixture of 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine and dibutyl tin laurate, weight is respectively 0.5kg, 0.5kg and 0.3kg, blowing agent H CFC-141b, 20kg, fire retardant A:TCPP, 12.4kg, fire retardant B:LM8089, 10kg, by load weighted polyether glycol A, polyether glycol B and polyester polyol load stirring in mixing kettle, then add load weighted suds-stabilizing agent, water, catalyst A, catalyst B, fire retardant A, fire retardant B, whipping agent, adds successively in reactor, stirs at normal temperatures, after sampling detection is qualified, gets final product barrelling.
2, B component selects PM200(Yantai ten thousand China), 100kg.
3, component A and B component are mixed and made into coal mine flame-retardant polyurethane coating closed foam.
Embodiment 2:
1, preparation component A:100kg, weighs polyether glycol A(6 functionality, molecular weight 730 respectively), 10kg, polyether glycol B:B251(Germany Su Wei), 18kg, polyester polyol (2 functionality, molecular weight 370), 18kg, suds-stabilizing agent: the L6950(U.S. steps figure), 1.5kg, water, 0.9kg, catalyst A selects the mixture of trolamine and diethanolamine, and weight is respectively 4kg and 1kg, and N selected by catalyzer, N, N ', N ", N "-pentamethyl-diethylenetriamine, the mixture of 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine and dibutyl tin laurate, weight is respectively 0.8kg, 0.4kg and 0.4kg, whipping agent: HCFC-141b, 18kg, fire retardant A:TCPP, 15kg, fire retardant B:LM8089, 12kg, by load weighted polyether glycol A, polyether glycol B and polyester polyol load stirring in mixing kettle, then add load weighted suds-stabilizing agent, water, catalyst A, catalyst B, fire retardant A, fire retardant B, whipping agent, adds successively in reactor, stirs at normal temperatures, after sampling detection is qualified, gets final product barrelling.
2, B component selects 44v20(Bayer), 100kg.
3, component A and B component are mixed and made into coal mine flame-retardant polyurethane coating closed foam.
Embodiment 3:
1, preparation component A:100kg, weighs polyether glycol A(4 functionality, molecular weight 600 respectively), 14kg, polyether glycol B:B251(Germany Su Wei), 10kg, polyester polyol (2 functionality, molecular weight 400), 21kg, suds-stabilizing agent: the L6950(U.S. steps figure), 1kg, water, 0.8kg, catalyst A: trolamine, 4.5kg, catalyst B selects N, N, N ', N ", N "-pentamethyl-diethylenetriamine, 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine and dibutyl tin laurate, weight is respectively 0.4kg, 0.6kg and 0.3kg, whipping agent: HCFC-141b, 16kg, fire retardant A:TCPP, 16kg, fire retardant B:LM8089, 15kg, by load weighted polyether glycol A, polyether glycol B and polyester polyol load stirring in mixing kettle, then add load weighted suds-stabilizing agent, water, catalyst A, catalyst B, fire retardant A, fire retardant B, whipping agent, adds successively in reactor, stirs at normal temperatures, after sampling detection is qualified, gets final product barrelling.
2, B component selects PM200(Yantai ten thousand China), 100kg.
3, component A and B component are mixed and made into coal mine flame-retardant polyurethane coating closed foam.
Table 1 is the finished product detection data of embodiment 1-3.
The finished product detection data of table 1: embodiment 1-3
As seen from the above table: obtained flame retardant polyurethane spraying enclosed material foam good leak tightness, excellent flame retardancy, product stability are good.
Claims (8)
1. a preparation method for flame retardant polyurethane spraying enclosed material, is characterized in that, comprise the following steps:
A, preparation raw material: prepare raw material by following component:
Component A: polyether glycol A, 10 ~ 20, polyether glycol B, 10 ~ 20, polyester polyol, 15 ~ 25, suds-stabilizing agent, 0.5 ~ 1.5, water, 0.5 ~ 1, catalyst A, 2.5 ~ 7.5, catalyst B, 1 ~ 2.5, whipping agent, 16 ~ 24, fire retardant A, 10 ~ 20, fire retardant B, 5 ~ 15; Each numerical value is the weight percentage of each component shared by component A above; Wherein: described polyether glycol A is 4-6 functionality, molecular weight is the poly(propylene oxide) ethoxylated polyhydric alcohol of 300-1000; Described polyether glycol B is flame retardant polyether polyol; Institute's polyester polyol is 2 functionality, and molecular weight is the Aromatic Polyester Polyols of 250-400; Described catalyst A is one or both the mixture in trolamine or diethanolamine; Catalyst B is N, N, N ', N ", N " and the mixture of any two or three in-pentamethyl-diethylenetriamine, 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine or dibutyl tin laurate; Described fire retardant A is phosphate ester flame retardants, and described fire retardant B is expanded graphite based flame retardant;
B component: polyphenyl polymethylene polyisocyanates;
The weight ratio of component A and B component is 1:1;
B, preparation component A: according to component in step a and weight ratio, to drop into load weighted polyether glycol A, polyether glycol B, polyester polyol in mixing kettle and to stir; Then suds-stabilizing agent, water, catalyst A, catalyst B, whipping agent, fire retardant A, fire retardant B are added in mixing kettle and stir;
C, according to component in step a and weight ratio, B component is weighed for subsequent use;
When d, use, use double-liquid high pressure to spray grouting pump by weight 1:1 component A and B component and spray.
2. the preparation method of flame retardant polyurethane spraying enclosed material according to claim 1, it is characterized in that, described suds-stabilizing agent is organosilicone surfactants.
3. the preparation method of flame retardant polyurethane spraying enclosed material according to claim 1, it is characterized in that, described whipping agent is a fluorine ethylene dichloride.
4. the preparation method of flame retardant polyurethane spraying enclosed material according to claim 1, it is characterized in that, described fire retardant A is three (2-chloro isopropyl) phosphoric acid ester.
5. the flame retardant polyurethane spraying enclosed material according to the arbitrary claim of Claims 1 to 4, it is characterized in that, be made up of component A and B component, the weight ratio of component A and B component is 1:1, wherein,
Described component A is composed of the following components: polyether glycol A, 10 ~ 20, polyether glycol B, 10 ~ 20, polyester polyol, 15 ~ 25, suds-stabilizing agent, 0.5 ~ 1.5, water, 0.5 ~ 1, catalyst A, 2.5 ~ 7.5, catalyst B, 1 ~ 2.5, whipping agent, 16 ~ 24, fire retardant A, 10 ~ 20, fire retardant B, 5 ~ 15; Each numerical value is the weight percentage of each component shared by component A above;
Wherein in component A: described polyether glycol A is 4-6 functionality, molecular weight is the poly(propylene oxide) ethoxylated polyhydric alcohol of 300-1000; Described polyether glycol B is flame retardant polyether polyol; Institute's polyester polyol is 2 functionality, and molecular weight is the Aromatic Polyester Polyols of 250-400; Described catalyst A is one or both the mixture in trolamine or diethanolamine; Described catalyst B is N, N, N ', N ", N " and the mixture of any two or three in-pentamethyl-diethylenetriamine, 1,3,5-tri-(dimethylaminopropyl) Hexahydrotriazine or dibutyl tin laurate; Described fire retardant A is phosphate ester flame retardants, and described fire retardant B is expanded graphite based flame retardant;
Described B component is polyphenyl polymethylene polyisocyanates.
6. flame retardant polyurethane spraying enclosed material according to claim 5, it is characterized in that, described suds-stabilizing agent is organosilicone surfactants.
7. flame retardant polyurethane spraying enclosed material according to claim 5, it is characterized in that, described whipping agent is a fluorine ethylene dichloride.
8. flame retardant polyurethane spraying enclosed material according to claim 5, it is characterized in that, described fire retardant A is three (2-chloro isopropyl) phosphoric acid ester.
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| US20120264842A1 (en) * | 2011-04-15 | 2012-10-18 | Basf Se | Process for producing rigid polyurethane foams |
| CN102533089B (en) * | 2011-12-27 | 2014-05-07 | 山东一诺威新材料有限公司 | Mineral polyurethane spraying material and preparation method thereof |
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