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Composite polyether for production of polyisocyanurate heat insulation board by continuous process and preparation method thereof

A technology of polyisocyanurate and polyether combination, applied in the field of polyurethane, can solve the problems that it is difficult to form a carbonized layer and cannot further prevent the spread of fire, so as to reduce energy supply equipment and cumbersome operations, and reduce flame spread , good effect of foam flame retardant performance

Inactive Publication Date: 2015-10-07
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rigid polyurethane foam is a thermosetting material, and the flame retardant level is at most B2, and this material is difficult to form a carbonized layer during combustion, which cannot further prevent the spread of fire

Method used

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  • Composite polyether for production of polyisocyanurate heat insulation board by continuous process and preparation method thereof
  • Composite polyether for production of polyisocyanurate heat insulation board by continuous process and preparation method thereof
  • Composite polyether for production of polyisocyanurate heat insulation board by continuous process and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation of component A, 200kg: Weigh polyether polyol A: YNW-6001A (Shandong Yinuowei new material), 30kg, polyether polyol B: YNW-403 (Shandong Yinuowei new material), 6kg, flame retardant polyester polyol C: B-175 (Shandong Yinuowei Co., Ltd.) 65kg, foam stabilizer L-6920 (Momentive Company), 3kg, deionized water, 2.5kg, catalyst N, N, N',N",N"-pentamethyldiethylenetriamine, N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, 70% bis-(di A mixture of methylaminoethyl) ether-propylene glycol solution, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine, and tetramethylethylenediamine, the weights of which are 0.5kg, 1.1kg, and 1.5kg, respectively , 1.6kg, 1.3kg and 1.5kg, physical blowing agent HFC-365mfc / n-pentane (a mixture of HFC-365mfc and n-pentane, the weight ratio of the two is 29:21), 36kg, flame retardant TCPP, 50kg.

[0027] Add the weighed polyether polyol A, polyether polyol B, polyester polyol C, foam stabilizer, chemical foaming agent, catalyst, fl...

Embodiment 2

[0031] 1. Prepare component A, 200kg: weigh polyether polyol A: YNW-6001A (Shandong Yinuowei new material), 20kg, polyether polyol B: YNW-403 (Shandong Yinuowei new material), 7kg, flame retardant polyester polyol C: B-175 (Shandong Yinuowei Co., Ltd.) 70kg, foam stabilizer L-6920 (Momentive), 3kg, deionized water, 2kg, catalyst N, N, N ',N",N"-pentamethyldiethylenetriamine, N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, 70% bis-(dimethyl A mixture of aminoethyl) ether-propylene glycol solution, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine, tetramethylethylenediamine, and potassium isooctanoate, the weights of which are 0.9kg and 1.1kg respectively , 1.2kg, 1.5kg, 1.1kg, 1.2kg and 1kg, physical blowing agent HFC-365mfc / n-pentane (a mixture of HFC-365mfc and n-pentane, the weight ratio of the two is 29:21), 25kg, flame retardant Agent TCPP, 65kg.

[0032] Add the weighed polyether polyol A, polyether polyol B, polyester polyol, foam stabilizer, chemical foaming age...

Embodiment 3

[0036] 1. Prepare component A, 200kg: weigh polyether polyol A: YNW-6001A (Shandong Yinuowei new material), 20kg, polyether polyol B: YNW-403 (Shandong Yinuowei new material), 6kg, flame retardant polyester polyol C: B-175 (Shandong Yinuowei Co., Ltd.) 80kg, foam stabilizer L-6920 (Momentive Company), 3kg, deionized water, 1.8kg, catalyst N, N, N',N",N"-pentamethyldiethylenetriamine, N,N-dimethylcyclohexylamine, N,N-dimethylbenzylamine, 70% bis-(di A mixture of methylaminoethyl) ether-propylene glycol solution, 1,3,5-tris(dimethylaminopropyl)hexahydrotriazine, tetramethylethylenediamine, and potassium isooctanoate, the weights of which are 0.8kg, 0.8 kg, 1.5kg, 1kg, 0.8kg, 0.8kg and 1.5kg, physical blowing agent HFC-365mfc / n-pentane (a mixture of HFC-365mfc and n-pentane, the weight ratio of the two is 29:21), 24kg, resistance Fuel agent TCPP, 58kg.

[0037] Add the weighed polyether polyol A, polyether polyol B, polyester polyol, foam stabilizer, chemical foaming agent, cat...

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Abstract

Belonging to the technical field of polyurethane, the invention in particular relates to a composite polyether for production of a polyisocyanurate heat insulation board by continuous process and a preparation method thereof. The composite polyether is prepared from a component A and a component B in a weight ratio of 1:1.6-1.65. Specifically, the component A is prepared from the following components by weight percentage: 10-18 of polyether polyol A; 3-6 of polyether polyol B; C 30-45 of polyester polyol; 1.2-2.2 of a foam stabilizer; 0.9-3.0 of a chemical foaming agent; 10-20 of a physical foaming agent; 2.5-4.5 of a catalyst; and 15-32.5 of a flame retardant. The component B is diphenyl methane diisocyanate or polyaryl polymethylene isocyanate. The polyurethane foam prepared from the composite polyether provided by the invention has the advantages of excellent flame retardant properties, low smoke density, small flame propagation, good adhesion to substrate, and low dimensional change rate, and has thermal conductivity coefficient in accordance with the national standard.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a combined polyether used in continuous production of polyisocyanurate insulation boards and a preparation method thereof. Background technique [0002] In recent years, there have been building fires caused by typical insulation layers in my country, such as the CCTV fire, the Shanghai "11.15" fire, the Shenyang tallest building fire, and the Shouguang cold storage fire. It is imminent to manage and solve the fire safety problems in building energy conservation from the source of materials. At present, polystyrene foam plastics and rigid polyurethane foam are mainly used on a large scale in my country's buildings. Their technologies are mature, and their large-scale applications have played a key role in my country's building energy conservation and emission reduction. However, these materials are flammable and combustible materials. Serious fire hazard. Styrof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08G18/42C08J9/08C08J9/14C08K5/521C08K5/5333C08K5/32C08K5/3492C08G101/00
CPCC08G18/7671C08G18/42C08G18/4804C08G2101/00C08J9/08C08J9/141C08J2203/02C08J2203/14C08J2203/204C08K5/521
Inventor 徐业峰张佳佳李明友唐国涛周生鹏
Owner SHANDONG INOV NEW MATERIALS CO LTD