CN108264625A - A kind of LNG thermal insulation materials - Google Patents

A kind of LNG thermal insulation materials Download PDF

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Publication number
CN108264625A
CN108264625A CN201711397676.9A CN201711397676A CN108264625A CN 108264625 A CN108264625 A CN 108264625A CN 201711397676 A CN201711397676 A CN 201711397676A CN 108264625 A CN108264625 A CN 108264625A
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thermal insulation
component
initiator
insulation materials
polyether polyol
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CN108264625B (en
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李雅迪
庞德政
宋阔
于深
陈丁丁
华卫琦
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Wanhua Chemical Group Co Ltd
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Wanhua Chemical Group Co Ltd
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    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C08G18/6611—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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    • C08G18/40—High-molecular-weight compounds
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
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    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
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Abstract

The invention belongs to rigid poly urethanes thermal insulation material technical fields, provide a kind of LNG thermal insulation materials；The LNG thermal insulation materials are mixed to get by component A and component B；The component A includes each raw material of following parts by weight：Polyester polyol, 25 70 parts；Polyether polyol, 25 70 parts；Stabilizer, 0 10 parts；Foaming agent, 5 30 parts；Fire retardant, 15 parts；The stabilizer includes：Higher boiling fluorochlorohydrocarbon class compound and/or alkylcarbonic acid esters compound；The component B is more phenylmethane polyisocyanates.The present invention can improve foaming agent utilization rate, and obtain the thermal insulation material of low thermal conductivity.

Description

A kind of LNG thermal insulation materials
Technical field
The invention belongs to rigid poly urethanes thermal insulation material technical field more particularly to a kind of LNG thermal insulation materials.
Background technology
Hard polyurethane foam is widely used in heat preservation of refrigeration storage, container, household electrical appliances, builds as a kind of outstanding thermal insulation material Build, LNG transport etc. fields.
In general, hard polyurethane foam is mixed by substances such as polymer polyatomic alcohol, chain extender, catalyst, foaming agent and fire retardants The B component that the component A formed is formed with more phenylmethane polyisocyanates is closed to be obtained by mixing according to a certain percentage.Wherein, A groups Foaming agent used has two kinds of physical blowing agent and chemical foaming agent in being divided to.Physical blowing agent is low-boiling point liquid, can by component A with B component crosslinks the heat vaporization generated during reaction and generates gas by liquid, so as to play the role of foaming.If reaction Rate is slower, then the foaming agent in component A can be gradually evaporate into air, and foaming agent is caused to lose.Chemical foaming agent is mostly Water, water can react with the isocyanate groups in B component generates carbon dioxide, so as to play the role of foaming agent.But It is that making foaming agent with water has more shortcoming：First, carbon dioxide boiling point is extremely low, and normal-temperature reaction is easily overflowed；Secondly, water with it is different Cyanate group reaction can generate urea bond, and polarity is high, and foam structure can be adversely affected.So will to thermal conductivity factor Higher field is asked, the content of water is limited mostly when selection water makees foaming agent, to ensure uniform foam cell.
For protecting atmosphere, slowing down the requirement of the environmental protection aspect such as greenhouse effects, physical blowing agent experienced multiple change, Respectively from first generation foaming agent F11 to forth generation blowing agent H FO-1233zd.Although this change is imitated in ozone-depleting and greenhouse There is larger improvement in terms of the value that should dive, be not to have no effect to environment still.If physical blowing agent overflows, on the one hand, is Guarantee foam density needs more physical blowing agents to add in, and existing physical blowing agent is mostly at high price, adds object Haircut infusion will substantially influence combination material cost；On the other hand, the foaming agent of spilling can damage to environment.
It is disclosed in the patent document of Publication No. CN 101531751A a kind of for the fire retardant hydrophobic of LNG ship insulating tube Material, the component A which is made of polyols blend, catalyst, foam stabilizer, foaming agent, fire retardant and chain extender, then with it is different The B component reaction of cyanate is prepared and is obtained.It is provided in the patent document of Publication No. CN 101357979A a kind of resistance to low Warm LNG thermal insulation materials and preparation method thereof, the material be by polyols blend, catalyst, foam stabilizer, foaming agent, fire retardant and The component A of chain extender composition；Preparation is reacted with the B component of isocyanates again and is obtained.Disclosed in these existing patent documents Thermal insulation material prepared by method, although having the advantages that thermal conductivity factor is low, low-temperature stability is good, as thermal insulation material stores The extension of time can cause the reduction of heat insulation effect.It is well known that it with the storage of foam, uses, the object sealed up for safekeeping in abscess Get a haircut infusion can slowly with air phase double replacement so that the thermal conductivity factor of foam increases, heat insulation effect be deteriorated.
How effectively to stablize the physical blowing agent in expanded material, improve its utilization rate and the heat preservation effect of thermal insulation material Fruit, this problems demand solve.
Invention content
It is an object of the present invention to for physical blowing agent and carbon dioxide present in existing thermal insulation material foaming process The problems such as utilization rate is low, provide a kind of LNG thermal insulation materials, the thermal insulation material thermal conductivity factor of acquisition is low, disclosure satisfy that requirement.
To achieve these goals, the present invention provides a kind of LNG thermal insulation materials, which passes through component A and group B is divided to be mixed to get；Wherein,
It is counted using the total weight of component A as 100 parts, the component A includes each raw material of following parts by weight：
The component B is more phenylmethane polyisocyanates.
According to LNG thermal insulation materials provided by the invention, it is preferable that the weight ratio of the component A and component B is 1：0.5-2, More preferably 1：0.9-1.5.
For the purpose for further improving foaming agent utilization rate, slowing down foaming agent and air phase double replacement, make in the present invention With higher boiling fluorochlorohydrocarbon class compound and alkylcarbonic acid esters compound, as the stabilizer of foaming agent, to physical blowing agent, Carbon dioxide etc. plays the role of adsorbing and fixing.
According to LNG thermal insulation materials provided by the invention, it is preferable that the stabilizer is selected from：Higher boiling fluorochlorohydrocarbon class chemical combination Object and/or alkylcarbonic acid esters compound.Preferably, the boiling point of the higher boiling fluorochlorohydrocarbon class compound is 90-260 DEG C, more Preferably 110-200 DEG C.
Preferably, the higher boiling fluorochlorohydrocarbon class compound is in carbon tetrachloride, tetrachloroethanes and 4-Fluorobenzaldehyde One or more, in a preferred embodiment of the invention, the higher boiling fluorochlorohydrocarbon class compound is carbon tetrachloride.
Preferably, the alkylcarbonic acid esters compound is in diethyl carbonate, ethylene carbonate and propene carbonate One or more, more preferably propene carbonate.
According to LNG thermal insulation materials provided by the invention, it is preferable that counted using the total weight of the stabilizer as 100wt%, such as Weight percent of the lower component in the stabilizer be：
Higher boiling fluorochlorohydrocarbon class compound 0-70wt%, more preferably 30-40wt%；
Alkylcarbonic acid esters compound 0-70wt%, more preferably 60-70wt%.
The present invention is each in the stabilizer on the basis of original rigid poly urethanes insulating foam comprehensive performance is retained Synergistic effect between component can adsorb the substances such as the fluorochlorohydrocarbon as foaming agent, carbon dioxide to the greatest extent, reduce foaming Agent is overflowed, and improves foaming agent utilization rate, improves thermal conductivity factor caused by foam storage, use are lost in the process due to foaming agent Raising problem, effective control combination material cost, and thermal insulation material weatherability is good.
According to LNG thermal insulation materials provided by the invention, it is preferable that the hydroxyl value of the polyester polyol is 150- 400mgKOH/g, preferably 200-350mgKOH/g；Its degree of functionality is 2-4, preferably 2-3.
According to LNG thermal insulation materials provided by the invention, it is preferable that the polyether polyol is selected from using glycerine as initiator Polyether polyol, using sucrose as the polyether polyol of initiator, using sorbierite as the polyether polyol of initiator, with toluenediamine For the polyether polyol of initiator and using sucrose and glycerine to be one or more in the polyether polyol of compound initiator；More Be preferably selected from using glycerine as the polyether polyol of initiator, using sucrose as the polyether polyol of initiator and using sorbierite as starting It is one or more in the polyether polyol of agent.
Preferably, the hydroxyl value using glycerine as the polyether polyol of initiator is 200~600mgKOH/g, and degree of functionality is 3-4。
Preferably, it is described using sucrose as 300~600mgKOH/g of hydroxyl value of the polyether polyol of initiator, degree of functionality 4-5.
Preferably, it is described using sorbierite as 300~600mgKOH/g of hydroxyl value of the polyether polyol of initiator, degree of functionality 4- 6。
Preferably, it is described using toluenediamine as 300~600mgKOH/g of hydroxyl value of the polyether polyol of initiator, degree of functionality 2-5。
It is preferably, described using sucrose and glycerine as 300~600mgKOH/g of hydroxyl value of the polyether polyol of compound initiator, Degree of functionality 2-5.
According to LNG thermal insulation materials provided by the invention, it is preferable that the foaming agent is selected from pentafluoropropane, anti-form-1-chloro- It is one or more in 3,3,3- trifluoro propenes and 3-pentafluorobutane.In a preferred embodiment of the invention, the foaming agent is Pentafluoropropane.
Preferably, the fire retardant is selected from alkyl phosphate.It is highly preferred that the alkyl phosphate is selected from tripotassium phosphate It is one or more in ester, triethyl phosphate, tributyl phosphate and methyl-phosphoric acid dimethyl ester.In the preferred embodiment of the present invention In, the fire retardant is triethyl phosphate.
According to LNG thermal insulation materials provided by the invention, it is preferable that the component A further includes each raw material of following parts by weight：
0.01-0.5 parts of catalyst, preferably 0.08-0.2 parts,
0.5-3 parts of foam stabilizer, preferably 1.5-2.2 parts,
1-5 parts, preferably 1-3 parts of chain extender.
According to LNG thermal insulation materials provided by the invention, it is preferable that the catalyst is selected from triethanolamine, N, N- dimethyl It is one or more in cyclohexylamine, pentamethyl-diethylenetriamine, triethylene diamine, bis- (dimethylamino ethyl) ethers and quaternary ammonium salt, It is more preferably selected from N, it is one or more in N- dimethyl cyclohexyl amines, triethylene diamine and bis- (dimethylamino ethyl) ethers.
Preferably, the foam stabilizer is selected from the non-hydrolytic type polysiloxane-polyether copolymer of silicon-carbon bond；In the excellent of the present invention Select in embodiment, the non-hydrolytic type polysiloxane-polyether copolymer of silicon-carbon bond be selected from step figure L-6863, step figure L6620, It steps figure Y16300 and wins one or more in wound B8545.
Preferably, the chain extender is one or more in glycerine, dipropylene glycol, diethylene glycol and n-butanol； In the preferred embodiment of the present invention, the chain extender is glycerine.
According to LNG thermal insulation materials provided by the invention, it is preferable that the viscosity of more phenylmethane polyisocyanates is 150-800cp, more preferable 200-500cp.
It is highly preferred that more phenylmethane polyisocyanates are selected from ten thousand China PM200, ten thousand China Wannate 9131 and Wan Hua It is one or more in PM400.
In the present invention, after component A and component B mixing, the LNG thermal insulation materials of foam are can obtain by foaming.It is any The present invention is can be used in suitable for the equipment of foaming.
The method that LNG thermal insulation materials preparation method of the present invention is well known to those skilled in the art.In this hair In a kind of bright specific embodiment, the LNG thermal insulation material preparation methods are：
After component A and component B is mixed, high pressure foaming machine is put into, control material temperature is 20-25 DEG C, and pipette tips pressure is 130- 150bar, molding die temperature are 35-45 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and carry out properties test afterwards for 24 hours.
The advantageous effect of technical solution of the present invention is：
(1) using the present invention formula, due to foaming agent utilization rate improve, cellular insulant foam density obtained compared with Small, thermal conductivity factor can reach requirement；
(2) stabilization of the higher boiling fluorochlorohydrocarbon class compound and/or alkylcarbonic acid esters compound added in as foaming agent Agent can enhance and interact between foaming agent, play the effect of physical absorption；Higher boiling fluorochlorohydrocarbon class compound and alkyl carbon It can act synergistically between acid esters compound, in the extremely slow system of expansion rate, slow down the damage of foaming agent to the greatest extent It loses, further improves the utilization rate of foaming agent；And due to the reduction of foaming agent spill-out, the stability of foam in foaming process Enhancing, obtained foam are more uniformly distributed, and thermal conductivity factor is lower；
(3) during foam storage, use, stabilizer still remains the suction-operated of foaming agent, can be apparent The spilling of foaming agent is reduced, so that foam thermal conductivity is more stable, there is better weatherability.
Description of the drawings
Fig. 1 changes with time tendency chart for products obtained therefrom foam thermal conductivity in each embodiment and comparative example.
Specific embodiment
In order to which the technical characteristic of the present invention and content is understood in detail, the excellent of the present invention is described in more detail below Select embodiment.Although describing the preferred embodiment of the present invention in embodiment, however, it is to be appreciated that can be in a variety of manners Realize the present invention without should be limited by embodiments set forth herein.
First, the source of each reaction raw materials
1st, polyester polyol, hydroxyl value 320mgKOH/g, Si Taipan (Nanjing) Chemical Co., Ltd.,
Polyester polyol, hydroxyl value 300mgKOH/g, Si Taipan (Nanjing) Chemical Co., Ltd.；
2nd, polyether polyol, initiator are glycerine, hydroxyl value 560mgKOH/g, ten thousand Huarong's prestige companies,
Polyether polyol, initiator are sucrose, hydroxyl value 420mgKOH/g, ten thousand Huarong's prestige companies,
Polyether polyol, initiator are sorbierite, hydroxyl value 500mgKOH/g, ten thousand Huarong's prestige companies,
Polyether polyol, initiator be sucrose and glycerine, hydroxyl value 370mgKOH/g, ten thousand Huarong's prestige companies,
Polyether polyol, initiator are sorbierite, hydroxyl value 450mgKOH/g, ten thousand Huarong's prestige companies；
3rd, stabilizer：
Carbon tetrachloride, Shanghai moral list chemical industry,
Propene carbonate, Shandong moral hair chemical industry；
4th, fire retardant：Triethyl phosphate, refined gram of Jiangsu；
5th, chain extender：Glycerine, China National Chemicals Import(Sinochem)；
6th, foam stabilizer：Silicone oil B8545, Ying Chuan companies；
7th, catalyst：
Bis- (dimethylamino ethyl) ethers, air chemical company,
Triethylene diamine, air chemical company,
N, N- dimethyl cyclohexyl amine, air chemical company；
8th, foaming agent：
Pentafluoropropane, Honeywell (China) company；
Anti-form-1-chloro-3,3,3 ,-trifluoropropene, Honeywell (China) company；
9th, more phenylmethane polyisocyanates：
Ten thousand magnificent chemistry PM200, ten thousand China's chemistry.
2nd, test method
1st, the test of foam density：ASTM D1622；
2nd, the test of thermal conductivity factor：ASTM C177.
Embodiment 1
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, material temperature is 21 DEG C, and pipette tips pressure is 145bar, molding die temperature are 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carried out corresponding Test.
The example obtains product foam density 120kg/m3, thermal conductivity factor is 23.0mW/ (mK).
Embodiment 2
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 119kg/m3, thermal conductivity factor is 22.8mW/ (mK).
Embodiment 3
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 118kg/m3, thermal conductivity factor is 22.7mW/ (mK).
Embodiment 4
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 112kg/m3, thermal conductivity factor is 22.2mW/ (mK).
Embodiment 5
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 114kg/m3, thermal conductivity factor is 22.4mW/ (mK).
Embodiment 6
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 115kg/m3, thermal conductivity factor is 22.4mW/ (mK).
Embodiment 7
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 117kg/m3, thermal conductivity factor is 22.6mW/ (mK).
Comparative example 1
(1) raw material each in component A is uniformly mixed by mass fraction：
Component B is ten thousand magnificent chemistry PM200.
(2) component A and component B is added in into high pressure foaming machine, setting material ratio 1：1.25, control material temperature is 21 DEG C, pipette tips pressure Power is 145bar, and molding die temperature is 40 DEG C；It is demoulded after 2h, is cured under the conditions of 25 DEG C and foam is made afterwards for 24 hours, and carry out phase The test answered.
The example obtains product foam density 120kg/m3, thermal conductivity factor is 23.7mW/ (mK).
The products obtained therefrom foam thermal conductivity trend that changes with time is as shown in Figure 1 in above example.
It can see by embodiment 2,3 and the comparison of embodiment 1, higher boiling fluorochlorohydrocarbon class compound and/or alkyl carbon Acid esters compound is enabled to as the addition of stabilizer under the premise of identical foaming agent additive amount, froth pulp density drop Low, foaming agent utilization rate improves, while its thermal conductivity factor is lower.It can see by comparative example 1 and the comparison of embodiment 7, when When stabilizer is more than 10 parts, excessive stabilizer can have larger impact to the reaction between A, B component so that finished foam density It is higher, thermal conductivity factor is higher.It can be with by the product foam thermal conductivity trend of changing with time of embodiment 1-7 and comparative example See, foam thermal conductivity can be increased with the extension of storage time.Single stable agent is added in formula, can cause heat conduction system Several litres of high-speeds slow down.Addition compound stabilizer can vary less product foam thermal conductivity, illustrate compound stabilizer Addition has good suction-operated to physical blowing agent, carbon dioxide.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and It is not limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for this skill Many modifications and changes will be apparent from for the those of ordinary skill in art field.

Claims (12)

1. a kind of LNG thermal insulation materials, which is characterized in that the LNG thermal insulation materials are mixed to get by component A and component B；Wherein,
It is counted using the total weight of component A as 100 parts, the component A includes each raw material of following parts by weight：
The component B is more phenylmethane polyisocyanates；
Preferably, the weight ratio of the component A and component B is 1：0.5-2, more preferably 1：0.9-1.5.
2. LNG thermal insulation materials according to claim 1, which is characterized in that the stabilizer is selected from：Higher boiling fluorochlorohydrocarbon class Compound and/or alkylcarbonic acid esters compound；
Preferably, the boiling point of the higher boiling fluorochlorohydrocarbon class compound is 90-260 DEG C, preferably 110-200 DEG C；
Preferably, the one kind of the higher boiling fluorochlorohydrocarbon class compound in carbon tetrachloride, tetrachloroethanes and 4-Fluorobenzaldehyde Or a variety of, more preferably carbon tetrachloride；
Preferably, the alkylcarbonic acid esters compound in diethyl carbonate, ethylene carbonate and propene carbonate one Kind is a variety of, more preferably propene carbonate.
3. stabilizer according to claim 2, which is characterized in that counted using the total weight of the stabilizer as 100wt%, such as Weight percent of the lower component in the stabilizer be：
Higher boiling fluorochlorohydrocarbon class compound 0-70wt%, preferably 30-40wt%；
Alkylcarbonic acid esters compound 0-70wt%, preferably 60-70wt%.
4. LNG thermal insulation materials according to any one of claim 1-3, which is characterized in that the hydroxyl of the polyester polyol It is worth for 150-400mgKOH/g, preferably 200-350mgKOH/g；Its degree of functionality is 2-4, preferably 2-3.
5. the LNG thermal insulation materials according to any one of claim 1-4, which is characterized in that the polyether polyol is selected from Using glycerine as the polyether polyol of initiator, using sucrose as the polyether polyol of initiator, using sorbierite as the polyethers of initiator Polyalcohol, using toluenediamine as the polyether polyol of initiator and using sucrose and glycerine as the polyether polyol of compound initiator In it is one or more；It is preferably selected from using glycerine as the polyether polyol of initiator, the polyether polyol using sucrose as initiator With using sorbierite to be one or more in the polyether polyol of initiator；
Preferably, the hydroxyl value using glycerine as the polyether polyol of initiator is 200~600mgKOH/g, degree of functionality 3-4；
Preferably, the hydroxyl value using sucrose as the polyether polyol of initiator is 300~600mgKOH/g, degree of functionality 4-5；
Preferably, the hydroxyl value using sorbierite as the polyether polyol of initiator is 300~600mgKOH/g, degree of functionality 4-6；
Preferably, the hydroxyl value using toluenediamine as the polyether polyol of initiator is 300~600mgKOH/g, degree of functionality 2- 5；
Preferably, the hydroxyl value using sucrose and glycerine as the polyether polyol of compound initiator is 300~600mgKOH/g, official Energy degree 2-5.
6. LNG thermal insulation materials according to any one of claims 1-5, which is characterized in that the foaming agent is selected from five fluorine It is one or more in propane, anti-form-1-chloro-3,3,3 ,-trifluoropropene and 3-pentafluorobutane, preferably pentafluoropropane.
7. the LNG thermal insulation materials according to any one of claim 1-6, which is characterized in that the fire retardant is selected from alkyl Phosphate；
Preferably, the alkyl phosphate is selected from trimethyl phosphate, triethyl phosphate, tributyl phosphate and methyl-phosphoric acid dimethyl ester In one or more, more preferably triethyl phosphate.
8. the LNG thermal insulation materials according to any one of claim 1-7, which is characterized in that the component A further includes following Each raw material of parts by weight：
0.01-0.5 parts of catalyst, preferably 0.08-0.2 parts,
0.5-3 parts of foam stabilizer, preferably 1.5-2.2 parts,
1-5 parts, preferably 1-3 parts of chain extender.
9. LNG thermal insulation materials according to claim 8, which is characterized in that the catalyst is selected from triethanolamine, N, N- bis- One kind or more in methyl cyclohexylamine, pentamethyl-diethylenetriamine, triethylene diamine, bis- (dimethylamino ethyl) ethers and quaternary ammonium salt Kind, it is preferably selected from N, it is one or more in N- dimethyl cyclohexyl amines, triethylene diamine and bis- (dimethylamino ethyl) ethers.
10. LNG thermal insulation materials according to claim 8 or claim 9, which is characterized in that it is non-aqueous that the foam stabilizer is selected from silicon-carbon bond Solution type polysiloxane-polyether copolymer；
Preferably, the non-hydrolytic type polysiloxane-polyether copolymer of the silicon-carbon bond, which is selected from, steps figure L-6863, steps figure L6620, steps Scheme Y16300 and win one or more in wound B8545.
11. the LNG thermal insulation materials according to any one of claim 8-10, which is characterized in that the chain extender is selected from sweet It is one or more in oil, dipropylene glycol, diethylene glycol and n-butanol, it is preferably selected from glycerine.
12. the LNG thermal insulation materials according to any one of claim 1-11, which is characterized in that more phenylmethanes are more The viscosity of isocyanates is 150-800cp, preferably 200-500cp；
Preferably, more phenylmethane polyisocyanates are in ten thousand China PM200, ten thousand China Wannate9131 and Wan Hua PM400 It is one or more.
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CN112239531A (en) * 2020-10-10 2021-01-19 上海东大聚氨酯有限公司 Full-water combined polyether, high-flame-retardant LNG polyurethane block foam derived from full-water combined polyether and preparation method of polyurethane block foam
CN113698569A (en) * 2021-07-20 2021-11-26 佳化化学科技发展（上海）有限公司 Combined polyether, polyurethane block foam for LNG pipe bracket and preparation method and application of polyurethane block foam
CN117736406A (en) * 2024-02-21 2024-03-22 江苏绿源新材料有限公司 Tank type container heat insulation structure and preparation method of heat insulation material thereof
CN117866166A (en) * 2024-03-12 2024-04-12 洛阳双瑞橡塑科技有限公司 Composite material skid for LNG ship and preparation method thereof
KR102668981B1 (en) 2020-10-10 2024-05-27 상하이 동다 폴리우레탄 컴퍼니 리미티드 All-water polyether polyol combination, highly flammable polyurethane foam block for LNG derived therefrom, and method for manufacturing the same

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CN109294214A (en) * 2018-09-26 2019-02-01 上海东大聚氨酯有限公司 Combined polyether, polyurethane raw material composition, from its polyurethane heat insulation material and its preparation method and application
CN109294214B (en) * 2018-09-26 2021-12-07 上海东大聚氨酯有限公司 Conjugate polyether, polyurethane raw material composition, polyurethane thermal insulation material derived from conjugate polyether, and preparation method and application of polyurethane thermal insulation material
CN112239531A (en) * 2020-10-10 2021-01-19 上海东大聚氨酯有限公司 Full-water combined polyether, high-flame-retardant LNG polyurethane block foam derived from full-water combined polyether and preparation method of polyurethane block foam
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CN112239531B (en) * 2020-10-10 2022-05-17 上海东大聚氨酯有限公司 Full-water combined polyether, high-flame-retardant LNG polyurethane block foam derived from full-water combined polyether and preparation method of polyurethane block foam
KR102668981B1 (en) 2020-10-10 2024-05-27 상하이 동다 폴리우레탄 컴퍼니 리미티드 All-water polyether polyol combination, highly flammable polyurethane foam block for LNG derived therefrom, and method for manufacturing the same
CN113698569A (en) * 2021-07-20 2021-11-26 佳化化学科技发展（上海）有限公司 Combined polyether, polyurethane block foam for LNG pipe bracket and preparation method and application of polyurethane block foam
CN117736406A (en) * 2024-02-21 2024-03-22 江苏绿源新材料有限公司 Tank type container heat insulation structure and preparation method of heat insulation material thereof
CN117866166A (en) * 2024-03-12 2024-04-12 洛阳双瑞橡塑科技有限公司 Composite material skid for LNG ship and preparation method thereof

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