Combined polyether, polyurethane foam for fireproof thermal insulation roller shutter door and raw material composition and preparation method thereof

Abstract

The application belongs to the technical field of polyurethane, and particularly relates to a combined polyether for fireproof and heat-insulating rolling shutter door, polyurethane foam, raw material composition and preparation method thereof. The combined polyether for fireproof and heat-insulating rolling shutter door comprises the following raw materials in parts by weight: polyether polyol A 55-65 parts, polyether polyol B 35-45 parts, foam stabilizer 2-3 parts, catalyst 2-4 parts, chemical foaming agent 4-5 parts, bisphenol A-bis(diphenyl phosphate) 18-23 parts, and the catalyst is a composite catalyst of N, N-dimethylcyclohexylamine, N, N-dimethylbenzylamine, XR Cat 215 and JXP 508. The polyurethane foam made of the combined polyether improves the dimensional stability, oxygen index and thermal conductivity of the door, has good heat-insulating performance, corrosion resistance and mildew resistance, achieves the effect of fireproof and heat-insulating, and has the advantage of zero pollution by using water as the foaming agent.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of polyurethane, and particularly relates to a combined polyether for fireproof thermal insulation rolling shutter door, polyurethane foam and raw material composition and preparation method thereof. BACKGROUND

[0002] The fireproof thermal insulation rolling shutter door is one of modern building fireproof partition insulation facilities. With the development of economy and the progress of society, people's living standards are continuously improved, and floors are built higher and higher, and the underground parking lot and modern shopping mall are also larger and larger. According to the requirements of modern building fire protection, fire partition must be provided between two fire zones of underground parking lot or large shopping mall. Because vehicles frequently enter and exit the parking lot, and large shopping malls have continuous personnel and goods flow, therefore, fixed firewalls cannot be used for fireproof partition, and only fireproof rolling shutter doors can be installed to achieve the purpose of fireproof isolation. In this way, when a fire occurs, it can play a role in fireproof blocking, and win time for firefighters to extinguish the fire. It can be seen that the fireproof rolling shutter door set in the building is an effective measure to prevent the spread of fire when a fire occurs, and effectively reduce personnel casualties and property economic losses in the fire.

[0003] At present, the paperboard with honeycomb structure is mostly used as the fireproof thermal insulation material of the rolling shutter door, but its dimensional stability, flame retardancy and thermal conductivity coefficient cannot meet the requirements of use. The microcellular structure of the polyurethane foam is a very ideal fireproof thermal insulation material, and compared with the traditional paperboard with honeycomb structure, the polyurethane foam has the advantages of light weight, good dimensional stability, good flame retardancy and low thermal conductivity coefficient. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a combined polyether for fireproof thermal insulation rolling shutter door, polyurethane foam and raw material composition, and the formula design is scientific and reasonable.

[0005] The present application also provides a method for preparing polyurethane foam by using the same, which is simple and easy to operate, and can be produced industrially.

[0006] The combined polyether for fireproof thermal insulation rolling shutter door comprises the following raw materials in parts by weight:

[0007]

[0008] Among them:

[0009] The total weight parts of the polyether polyol is 100 weight parts;

[0010] The polyether polyol A is a polyether polyol with a hydroxyl value of 385-415 mgKOH / g and a viscosity of 11000-15000 mPa.s; preferably YD-401P produced by Hebei Yadong Chemical Group;

[0011] The polyether polyol B is a polyether polyol with a hydroxyl value of 26-30 mgKOH / g and a viscosity of 600-1400 mPa.s, preferably NJ-360N produced by Jurong Ningwu New Material Co., Ltd.

[0012] The foam stabilizer is a silicone foam stabilizer, preferably M8816 produced by Jiangsu Meiside Chemical Co., Ltd.

[0013] The catalyst is a composite catalyst of N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, XR Cat 215 and JXP 508, wherein XR Cat 215 is a commercially available product of Shanghai Xinxue Chemical Technology Co., Ltd.

[0014] The weight ratio of the N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, XR Cat 215 and JXP 508 is 1:(1-2.5):(0.5-1.0):(1-2.5).

[0015] The chemical foaming agent is water, preferably deionized water.

[0016] The flame retardant is preferably bisphenol A-bis(diphenyl phosphate) produced by Anhui Runyue Science and Technology Co., Ltd.

[0017] The raw material composition of the polyurethane foam prepared by the fireproof and heat-insulating roller shutter door combined polyether according to the application comprises a fireproof and heat-insulating roller shutter door combined polyether and an isocyanate, and the isocyanate is polymeric diphenylmethane diisocyanate.

[0018] The weight ratio of the fireproof and heat-insulating roller shutter door combined polyether and the isocyanate is 1:(1.2-1.4), preferably 1:1.3.

[0019] The method for preparing the polyurethane foam by using the raw material composition of the polyurethane foam according to the application comprises the following steps:

[0020] S1: fully mixing the fireproof and heat-insulating roller shutter door combined polyether raw material to obtain a combined polyether polyol;

[0021] S2: mixing the combined polyether and the isocyanate through a high-pressure foaming machine, foaming at a temperature of 20-23℃, injecting into a mold, and demolding after solidification to obtain the polyurethane foam.

[0022] The beneficial effects of the application are as follows:

[0023] (1) The combined polyether described in the present application significantly improves the dimensional stability, oxygen index and thermal conductivity of the door, thereby achieving the effect of fire prevention and heat preservation.

[0024] (2) The present application uses water as a foaming agent, which has the advantage of zero pollution.

[0025] (3) The roll-up door body filler prepared from the polyurethane combined polyether as the raw material also has good heat preservation performance, corrosion resistance and good flame retardant performance. DETAILED DESCRIPTION

[0026] Unless otherwise indicated, all parts and percentages in the present application are based on weight, and the test and characterization methods used are those contemporary with the filing date of the present application. In applicable cases, the contents of any patent, patent application or publication referred to in the present application are incorporated herein by reference in their entirety, and equivalent homologous patents in other jurisdictions are also incorporated by reference, particularly the definitions of the synthetic techniques, products and processing designs, polymers, comonomers, initiators or catalysts, etc. disclosed in these documents. If the definition of a specific term disclosed in the prior art is inconsistent with any definition provided in the present application, the definition provided in the present application shall prevail.

[0027] The numerical ranges in the present application are approximate, and thus can include values outside the stated ranges unless otherwise indicated. Ranges include endpoints between the lower and upper values, inclusive of the values. For example, if a component, physical or otherwise, is stated to have a range of 100 to 1000, it is intended that all individual values, such as 100, 101, 102, etc., and sub-ranges, such as 100 to 166, 155 to 170, 198 to 200, etc., are expressly enumerated. For ranges containing values less than one or containing fractional numbers greater than one, e.g., 1.1, 1.5, etc., the same principle applies, as appropriate. For ranges ending with a zero, e.g., 1 to 10, the same principle applies, as appropriate. These are only examples of what is intended to be a specific embodiment and are not intended to exclude other embodiments that can fall within the scope of the application. It should also be noted that, as used in the specification and the appended claims, the singular form "a", "an" and "the" include plural references unless the context clearly dictates otherwise. Thus, for example, reference to "a component" includes a plurality of components.

[0028] When referring to chemical compounds, unless explicitly stated otherwise, the singular includes all isomers and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively). Additionally, unless explicitly stated otherwise, nouns described with "an," "a," or "the" also include their plural forms.

[0029] The terms “comprising,” “including,” “having,” and their derivatives do not exclude the presence of any other components, steps, or processes, regardless of whether such other components, steps, or processes are disclosed in this application. To eliminate any doubt, unless expressly stated otherwise, all compositions using the terms “comprising,” “including,” or “having” in this application may contain any additional additives, excipients, or compounds. Conversely, except for those necessary for operational performance, the term “substantially constitutes…” excludes any other components, steps, or processes described below with respect to that term. The term “consisting of…” does not include any components, steps, or processes not specifically described or listed. Unless expressly stated otherwise, the term “or” refers to the individual members listed or any combination thereof.

[0030] In a first aspect, this application provides a composite polyether for fireproof and heat-insulating roller shutter doors, characterized in that it comprises the following raw materials in parts by weight:

[0031]

[0032] in:

[0033] The total weight of the polyether polyol is 100 parts by weight;

[0034] In one embodiment, when the total weight parts of the polyether polyols are 100 parts by weight, the combined polyether polyols may contain 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65 parts of polyether polyol A or any two of these values.

[0035] In one embodiment, when the total weight parts of the polyether polyols are 100 parts by weight, the combined polyether polyols may contain 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45 parts of polyether polyol B or any two of these values.

[0036] In one embodiment, when the total weight of the polyether polyol is 100 parts by weight, the combined polyether polyol may contain 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0 parts or any two of these values, or a subrange of the range of foam stabilizers.

[0037] In an embodiment, the combined polyether polyol can comprise 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0 parts or a range or sub-range between any two of these values of catalyst, based on 100 parts by weight of the total polyether polyol.

[0038] In an embodiment, the combined polyether polyol can comprise 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0 parts or a range or sub-range between any two of these values of chemical blowing agent, based on 100 parts by weight of the total polyether polyol.

[0039] In an embodiment, the combined polyether polyol can comprise 18, 19, 20, 21, 22, 23 parts or a range or sub-range between any two of these values of flame retardant, based on 100 parts by weight of the total polyether polyol.

[0040] Polyether polyol

[0041] Polyether polyol is an oligomer with ether bond (-R-O-R-) in the main chain and more than 2 hydroxyl groups (-OH) in the end group or side group. Polyether polyol is prepared by ring-opening polymerization of alkylene oxide with low molecular weight polyol, polyamine or active hydrogen-containing compound as initiator under the action of catalyst. Alkylene oxide is mainly propylene oxide (propylene oxide) and ethylene oxide (ethylene oxide), among which propylene oxide is the most important. Polyol initiator includes dihydric alcohol such as propylene glycol and ethylene glycol, trihydric alcohol such as glycerol and trimethylolpropane, and polyhydric alcohol such as pentaerythritol, xylitol, sorbitol and sucrose; amine initiator includes diethylamine and diethylene triamine.

[0042] In an embodiment, the polyether polyol A has a hydroxyl value of 385-415 mgKOH / g and a viscosity of 11000-15000 mPa.s (Hebei Yadong Chemical Group).

[0043] In an embodiment, the polyether polyol B has a hydroxyl value of 26-30 mgKOH / g and a viscosity of 600-1400 mPa.s (Ningwu New Material Co., Ltd.).

[0044] In an embodiment, the foam stabilizer can be a conventional foam stabilizer in the art, preferably M8816 (Jiangsu Meishide Chemical Co., Ltd.).

[0045] In an embodiment, the chemical foaming agent is water, preferably deionized water.

[0046] In an embodiment, the bisphenol A-bis(diphenyl phosphate) is preferably a commercially available product of Anhui Runyue Science and Technology Co., Ltd.

[0047] In an embodiment, the catalyst is a mixed catalyst of N, N-dimethylcyclohexylamine, N, N-dimethylbenzylamine, XR Cat 215 and JXP-508, wherein XR Cat 215 is a commercially available product of Shanghai Xirui Chemical Technology Co., Ltd. The mixing ratio is 1:(1-2.5):(0.5-1.0):(1-2.5).

[0048] The raw material composition for preparing the polyurethane foam of the fireproof thermal insulation roller shutter door according to the present application comprises a combined polyether and an isocyanate, and the isocyanate is polymeric diphenylmethane diisocyanate.

[0049] The method for preparing the polyurethane foam by using the raw material composition according to the present application comprises the following steps:

[0050] (1) The weighed polyether polyol A, polyether polyol B, foam stabilizer, catalyst, chemical foaming agent and flame retardant bisphenol A-bis(diphenyl phosphate) are added into a reaction kettle, stirred at room temperature for 0.5-1.0 hours, and fully mixed to obtain a combined polyether.

[0051] (2) The combined polyether and polymeric diphenylmethane diisocyanate are mixed at a weight ratio of 1:(1.2-1.4), the foaming temperature is 20-23℃, and the mixture is mixed by a high-pressure foaming machine, injected into a mold, controlled at a temperature of 45℃, demolded after curing, and the polyurethane foam is obtained.

[0052] On the basis of not violating the common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily to obtain each preferred example of the present application.

[0053] The reagents and raw materials used in the present application are commercially available.

[0054] The percentage in the present application is the mass percentage of each component in the total amount of raw materials.

[0055] Examples

[0056] The technical solutions of the present application will be described clearly and completely in combination with the examples of the present application. If not specifically stated, the reagents and raw materials used are commercially available. The experimental methods not specified in the following examples are selected according to the conventional methods and conditions, or according to the product instructions.

[0057] The raw materials used in the following examples are as follows:

[0058] Polyether polyol YD-401P (produced by Hebei Yadong Chemical Group).

[0059] Polyether polyol NJ-360N (produced by Ningwu New Material Co., Ltd.).

[0060] Foam stabilizer M8816 (Jiangsu Meiside Chemical Co., Ltd.).

[0061] Flame retardant bisphenol A-bis(diphenyl phosphate) (produced by Anhui Runyue Science and Technology Co., Ltd.).

[0062] Isocyanate is polymeric MDI, purchased from Wanhua Chemical Group Co., Ltd., model PM200.

[0063] XR Cat 215 is a commercially available product of Shanghai Xinxie Chemical Technology Co., Ltd.

[0064] Examples 1-3

[0065] The raw material components and weight fractions of the polyurethane raw material composition of Examples 1-3 are shown in Table 1 below.

[0066]

[0067] Table 1 Raw material components and weight fractions of the polyurethane raw material composition in Examples 1-3

[0068] The preparation method of the polyurethane foam of Examples 1-3 is as follows:

[0069] (1) Preparation of the combined polyether A component: uniformly mix the components of the raw material composition of the combined polyether polyol except the blowing agent, then seal the container and pressurize to 0.10 MPa, and mix the blowing agent mixture from the bottom of the reaction kettle through the pipeline.

[0070] (2) Preparation of the polyurethane foam: mix the combined polyether and isocyanate according to the corresponding proportions at 22°C, and pour into a mold to obtain a fireproof and heat-insulating polyurethane roller shutter door material.

[0071] The properties of the obtained polyurethane foams of Examples 1-3 were characterized, and the results are shown in Table 2.

[0072]

[0073] Table 2 Test results

[0074] The polyurethane foams prepared in Examples 1-3 were compared with the polyurethane foam products of Comparative Examples 1-3, and the test results are shown in Table 2. As can be seen from Table 2, the polyurethane foam prepared using the combined polyether provided in Example 2 has the advantages of light weight, good high and low temperature dimensional stability, better flame retardancy, and lower thermal conductivity, and compared with the honeycomb paperboard material of Comparative Example 4, has the advantages of light weight, better flame retardancy, lower thermal conductivity, and excellent environmental protection performance.

[0075] The above description of the embodiments is to assist those of ordinary skill in the art to understand and apply the present application. Those skilled in the art can obviously make various modifications to these embodiments, and apply the general principles described herein to other embodiments without having to pay creative labor. Therefore, the present application is not limited to the embodiments herein, and improvements and modifications made by those skilled in the art based on the disclosure of the present application without departing from the scope and spirit of the present application are within the scope of the present application.

Claims

1. A combined polyether for fireproof thermal insulation roller shutter door, characterized in that, The raw materials include the following weight parts: 55-65 parts of polyether polyol A; 35-45 parts of polyether polyol B; 2-3 parts of foam stabilizer; 2-4 parts of catalyst; 4-5 parts of chemical foaming agent; 18-23 parts of bisphenol A-bis(diphenyl phosphate); Wherein: The total weight parts of the polyether polyol is 100 parts; The polyether polyol A has a hydroxyl value of 385-415 mgKOH / g and a viscosity of 11000-15000 mPa.s; The polyether polyol B has a hydroxyl value of 26-30 mgKOH / g and a viscosity of 600-1400 mPa.s; The catalyst is a composite catalyst of N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, XR Cat 215 and JXP 508; The weight ratio of the N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, XR Cat 215 and JXP 508 is 1:(1-2.5):(0.5-1.0):(1-2.5); The foam stabilizer is a silicone foam stabilizer.

2. The fireproof thermal insulation combined polyether for a roller shutter door according to claim 1, characterized by, The chemical foaming agent is water.

3. A raw material composition for polyurethane foam prepared by using the combined polyether according to any one of claims 1 to 2, characterized by comprising: the combined polyether according to any one of claims 1 to 2; a polyisocyanate; and water. The combined polyether and isocyanate for fireproof thermal insulation roller shutter door includes a polymeric diphenylmethane diisocyanate PM200 as the isocyanate, and the weight ratio of the combined polyether and isocyanate for fireproof thermal insulation roller shutter door is 1:(1.2-1.4).

4. A method of making a polyurethane foam using the raw material composition of claim 3, characterized in that, The method includes the following steps: S1: fully mixing the combined polyether raw materials for fireproof thermal insulation roller shutter door to obtain a combined polyether; S2: mixing the combined polyether and the isocyanate, then injecting into a mold for foaming, and demolding after solidification to obtain a polyurethane foam.

5. The method of making a polyurethane foam according to claim 4, characterized in that, The foaming temperature is 20-23℃.

6. A polyurethane foam characterized by, The preparation method of any one of claims 4-5 is adopted. The polyurethane foam is prepared by the method.

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