Background technology
9,10-dihydro-9-oxy is assorted-and 10-phospho hetero phenanthrene-10-oxide compound is a kind of good Flame Retardants for Polyurethane Foam, can be applied in polyurethane foam heat insulation material, 9, mix-10-phospho hetero phenanthrene-10-oxide compound (DOPO) of 10-dihydro-9-oxy and derivative thereof are owing to containing cyclohexyl biphenyl and phenanthrene ring structure in molecular structure, particularly side phosphorus group is introduced in the mode of ring-type O=P-O key, than general, organophosphate thermostability and the chemical stability of Cheng Huan are not high, flame retardant properties is better.DOPO and derivative thereof can be used as response type and additive flame retardant, and synthetic fire retardant Halogen, smokeless, nontoxic, does not move, and flame retardant properties is lasting.Can be used for the multiple macromolecular material fire-retardant finish such as linear polyester, polymeric amide, epoxy resin, urethane.External be widely used in the fire-retardant of the materials such as pressure layer, circuit card in plastics electronics for, brass.
Polyurethane foam is the current insulating heat insulating material of performance the best in the world, also be good sound-proof material, in energy-conserving and environment-protective, require today of more and more paying attention to, polyurethane foam is widely used in refrigerator, roof, top ceiling, body of wall, freezer, floor etc. as lagging material.But the density of polyurethane foam is smaller, there is a lot of cavernous structures, compare more easily burning with non-foam material, during burning, emit a large amount of heat and poisonous smog, affect people's healthy and life security.Therefore thermotolerance, the flame retardant type of hard polyurethane foams, become the important technical indicator of polyurethane foamed material.A large amount of rules have been put into effect in every country and area, and the flame retardant properties of regulation polyurethane foamed material must reach certain standard could produce, and the appearance of various rules has advanced the development of polyurethane flame-proof technology greatly.
Traditional fire retardant is divided into the fire retardant of linear fire retardant and heterocyclic, the thermostability of linear fire retardant is little, the Heat stability is good of the fire retardant that contains the ring texturees such as phenyl ring, heterocycle, be applied to the flame retardant properties that not only improves macromolecular material in macromolecular material, and the thermostability of raising macromolecular material, the fire retardant that therefore contains heterocyclic has better flame retardant properties.
The investigator of every country has carried out a large amount of research to DOPO, but because DOPO cost is high, limited the application of DOPO fire retardant, by add alcohol amine structure on DOPO molecule, can greatly reduce the cost of fire retardant, and the existence of phenyl ring has strengthened thermostability and flame retardant resistance, the existence of amino and hydroxyl makes fire retardant to have good compatibility with other polyol components, and with isocyanate reaction, ignition-proof element being attached in polyurethane molecular structure goes, has greatly improved fire-retardant persistence.
Summary of the invention
The technical problem solving: in order to improve flame retardant resistance and the fire-retardant persistence of polyurethane foam, the invention provides a kind of non-halogen reacting fire-retardant agent and its preparation method and application, adopt Mannich reaction, hydramine and formaldehyde are incorporated into 9, in mix-10-phospho hetero phenanthrene-10-oxide compound (DOPO) fire retardant structure of 10-dihydro-9-oxy, reduced the cost of fire retardant, and synthetic non-halogen reacting fire-retardant agent is applied in hard polyaminoester flame-retardant foam, and preparation technology is simple.
Technical scheme:
Non-halogen reacting fire-retardant agent for polyurethane foam, is obtained by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, hydramine and formaldehyde reaction, and structural formula is as follows:
The preparation method of the described non-halogen reacting fire-retardant agent for polyurethane foam, step is: by 9, mix-10-phospho hetero phenanthrene-10-oxide compound of 10-dihydro-9-oxy, hydramine and formaldehyde in molar ratio 1:0.8:0.8-1:1.2:1.2 are reacted and are obtained by Mannich, described Mannich reaction conditions is 80-100 ℃, and the reaction times is 4-6h; React the complete water of removing in solution.
The application of described non-halogen reacting fire-retardant agent in flame-retardant hard polyurethane foam, first combination polyvalent alcohol, non-halogen reacting fire-retardant agent and auxiliary agent are mixed under the condition stirring, and then under the condition stirring, stir 10~20s with isocyanic ester, during foaming, the ratio that is 1.2~2.5 in the mol ratio of NCO/OH preparation, rotating speed 2000~3000r/min, pours in mould, slaking 48h; Each raw material is counted with mass parts: 100 parts of combination polyvalent alcohols; 130 parts of isocyanic ester; 1~25 part of non-halogen reacting fire-retardant agent; Auxiliary agent is: 1~2 part of polyurethane foam stabilizer, 1~2 part of tin class catalyzer, 1~2 part, water, 10~30 parts of whipping agents.
Described tin class catalyzer is: di-n-butyltin dilaurate.
Described polyurethane foam stabilizer is silicon type suds-stabilizing agent.
Described isocyanic ester is tolylene diisocyanate, Xylene Diisocyanate or polymethine polyphenyl polyisocyanate.
Described whipping agent is choosing any one kind of them or the multiple mixture with arbitrary proportion in HCFC-141b, pentamethylene, iso-pentane, HFC-245fa or HFC-365mfc.
Described combination polyvalent alcohol is 40 parts of rosin polyester polyhydric-alcohols, (4110) 60 parts of polyether glycols.
Beneficial effect:
1, non-halogen reacting fire-retardant agent adopts Mannich reaction, hydramine and formaldehyde are incorporated into 9, in mix-10-phospho hetero phenanthrene-10-oxide compound (DOPO) fire retardant structure of 10-dihydro-9-oxy, synthetic non-halogen reacting fire-retardant agent contains activity hydroxy and combination polyvalent alcohol has good consistency, has improved the stability in storage of combination material.
2, synthetic non-halogen reacting fire-retardant agent is applied in flame-retardant hard polyurethane foam, owing to containing 2 rigidity phenyl ring in molecule, has improved mechanical property and the thermostability of foam.
3, hydramine and formaldehyde are synthesized in DOPO fire retardant, reduced the cost of fire retardant, non-halogen reacting fire-retardant agent of the present invention contains fire-retardant nitrogen, phosphoric, there is good fire-retardant synergy, and contain primary amine or tertiary amine, reactive behavior is higher, and the flame retarded polyurethane-foam of preparation has higher flame retardant resistance and fire-retardant persistence; Oxygen index can reach 23~28%.In building, insulation and some special occasions, be with a wide range of applications.
Embodiment
With specific embodiment, be described further below: in the present invention all raw materials be all commercially available, if in following examples without specializing, be all mass parts.
The present invention carries out a series of modification to 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and obtains the agent of DOPO derivative non-halogen reacting fire-retardant.Obtained non-halogen reacting fire-retardant agent and polyvalent alcohol, isocyanic ester and other auxiliary agent foam and make flame-retardant hard polyurethane foam; Major programme comprises the content of following two aspects.
One, the method for the DOPO derivative non-halogen reacting fire-retardant agent described in preparation
Adopt structurally-modified method, the method of the DOPO derivative non-halogen reacting fire-retardant agent that preparation is described, adopt Mannich reaction, hydramine and formaldehyde are incorporated into 9, in mix-10-phospho hetero phenanthrene-10-oxide compound (DOPO) fire retardant structure of 10-dihydro-9-oxy, obtain the agent of DOPO derivative non-halogen reacting fire-retardant, reaction equation is:
Method for making is more specifically, in mass parts: (37%wt) formalin of 100~110 mass parts DOPO, 30~50 mass parts monoethanolamines or diethanolamine, 40~60 mass parts or 15~20 mass parts paraformaldehydes are mixed, in the environment of logical nitrogen, be heated to 80~100 ℃ of temperature, reaction 4~6h, reacting the complete water of removing in solution can obtain.
Two, composition and the preparation of DOPO derivative non-halogen reacting fire-retardant agent flame-retardant hard polyurethane foam:
1, the composition of combination polyvalent alcohol, by mass parts:
(1) rosin polyester polyhydric-alcohol is 40 parts, (4110) 60 parts of polyether glycols; (Jiangsu Qiang Lin bioenergy Materials Co., Ltd).
(2) catalyzer is 1~2 part, is generally tin class catalyzer, is selected from di-n-butyltin dilaurate and similar catalyzer.
(3) polyurethane foam stabilizer is 1~2 part, is mainly silicon type suds-stabilizing agent, suds-stabilizing agent AK8805, AK8815, AK8812, AK8809 etc. that dolantin Shi Chuan company produces; Germany Sa company: B8464, B8481, B8474, B8471, B8481 etc.Suds-stabilizing agent can be one of above-mentioned, can be also the composite arbitrarily of two or more.
(4) whipping agent is 10~30 parts: HCFC-141b, pentamethylene, iso-pentane, HFC-245fa, HFC-365mfc etc. choose any one kind of them or the multiple mixture with arbitrary proportion.
(5) water is 1~2 part
2, formula and the preparation of DOPO derivative non-halogen reacting fire-retardant agent flame-retardant hard polyurethane foam:
Preparation formula, the performance test results of DOPO derivative non-halogen reacting fire-retardant agent flame-retardant hard polyurethane foam see attached list 1, subordinate list 2.Take combination polyvalent alcohol and isocyanic ester is main raw material, and during foaming, the ratio that is 1.2~2.5 in the mol ratio of NCO/OH preparation obtains.Concrete operations are as follows: first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, under the condition of high-speed stirring, stir 10~20s with isocyanic ester again, rotating speed 2000~3000r/min, pours in mould, slaking 48h.
The selection of isocyanic ester: tolylene diisocyanate, Xylene Diisocyanate, polymethine polyphenyl polyisocyanate (PAPI), preferred PAPI, the PM-200 that trade names are Yantai Wanhua Polyurethane Co., Ltd.
Embodiment 1
Take 110 mass parts DOPO, 30 mass parts thanomins, 15 mass parts paraformaldehydes and mix, in the environment of logical nitrogen, be heated to 90 ℃ of temperature, reaction 4h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent.Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
Embodiment 2
(37%wt) formalin that takes 100 mass parts DOPO, 35 mass parts monoethanolamines, 35 mass parts mixes, in the environment of logical nitrogen, be heated to 80 ℃ of temperature, reaction 5h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent.Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
Embodiment 3
The paraformaldehyde that takes 105 mass parts DOPO, 45 mass parts diethanolamine, 15 mass parts mixes, and in the environment of logical nitrogen, is heated to 90 ℃ of temperature, and reaction 5h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent.Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
Embodiment 4
(37%wt) formalin that takes 108 mass parts DOPO, 53 mass parts diethanolamine, 41 mass parts mixes, in the environment of logical nitrogen, be heated to 100 ℃ of temperature, reaction 6h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent (Fig. 1).Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
Embodiment 5
The paraformaldehyde that takes 108 mass parts DOPO, 53 mass parts diethanolamine, 15 mass parts mixes, and in the environment of logical nitrogen, is heated to 100 ℃ of temperature, and reaction 6h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent.Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
Embodiment 6
(37%wt) formalin that takes 105 mass parts DOPO, 30 mass parts thanomins, 35 mass parts mixes, in the environment of logical nitrogen, be heated to 90 ℃ of temperature, reaction 4h, reacts the complete water of removing in solution and can obtain non-halogen reacting fire-retardant agent.Then according to table 1, fill a prescription, first combination polyvalent alcohol, the non-halogen reacting fire-retardant agent of DOPO derivative and auxiliary agent are mixed under the condition of high-speed stirring, then under the condition of high-speed stirring, stir 10~20s with isocyanic ester, rotating speed 2000~3000r/min, pour in mould slaking 48h into.
The formula (mass parts) of table 1DOPO derivative non-halogen reacting fire-retardant agent flame-retardant hard polyurethane foam
Embodiment |
1 |
2 |
3 |
4 |
5 |
6 |
Rosin polyester polyhydric-alcohol |
40 |
40 |
40 |
40 |
40 |
40 |
Polyether glycol (4110) |
60 |
60 |
60 |
60 |
60 |
60 |
The fire retardant that the present invention is synthetic |
2 |
6 |
11 |
16 |
20 |
25 |
AK8805 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
Di-n-butyltin dilaurate |
1.5 |
1.6 |
1.8 |
1.5 |
1.5 |
1.6 |
Water |
1.0 |
0.9 |
1.5 |
1.6 |
1.0 |
1.7 |
Pentamethylene |
25 |
25 |
25 |
25 |
25 |
25 |
NCO/OH(MDI) |
1.4 |
1.6 |
1.8 |
2.0 |
1.8 |
1.7 |
Wherein, combination polyvalent alcohol: 40 parts of rosin polyester polyhydric-alcohols, (4110) 60 parts of polyether glycols; (Jiangsu Qiang Lin bioenergy Materials Co., Ltd)
The product performance of table 2 flame retarded polyurethane-foam (testing method is with reference to national standard)
Mensuration shows: flame retarded polyurethane-foam prepared by the DOPO derivative non-halogen reacting fire-retardant agent preparing with the present invention, there is good mechanical property, thermostability and flame retardant resistance, synthetic DOPO derivative non-halogen reacting fire-retardant agent is for flame-retardant hard polyurethane foam, have higher flame retardant resistance, oxygen index can reach 23~28%.Can in higher temperature environment, use, heat insulation effect is improved, and has saved the energy.Embodiment 4 and 5 is better, and particularly flame retardant properties and mechanical property are taken into account.