CN106243693A - Environment-protecting polyurethane exterior wall cellular insulant - Google Patents

Environment-protecting polyurethane exterior wall cellular insulant Download PDF

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Publication number
CN106243693A
CN106243693A CN201610627981.1A CN201610627981A CN106243693A CN 106243693 A CN106243693 A CN 106243693A CN 201610627981 A CN201610627981 A CN 201610627981A CN 106243693 A CN106243693 A CN 106243693A
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China
Prior art keywords
parts
environment
exterior wall
cellular insulant
protecting polyurethane
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Pending
Application number
CN201610627981.1A
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Chinese (zh)
Inventor
蒙献芳
金建荣
陈会杰
黄可煜
莫小青
周帆
谢刚
李光明
张立颖
谢彤
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Nanning Keyu Energy Technology Co Ltd
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Nanning Keyu Energy Technology Co Ltd
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Priority to CN201610627981.1A priority Critical patent/CN106243693A/en
Publication of CN106243693A publication Critical patent/CN106243693A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/06—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 chemical blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Building Environments (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention discloses a kind of environment-protecting polyurethane exterior wall cellular insulant, foamed by the raw material of following weight and make: isocyanates 30 40 parts, polyether polyol 30 40 parts, catalyst 24 parts, fire retardant 13 parts, foaming agent 13 parts, silicone oil 35 parts, portland cement 20 30 parts, lignocellulose 10 20 parts, sepiolite fibre 10 20 parts, deionized water 20 30 parts.Environment-protecting polyurethane exterior wall cellular insulant of the present invention has intensity height, light weight, heat conduction is low, dimensional stability is good, insulation effect is good, wear-and corrosion-resistant is good feature, also there is efficient fire retardancy, and do not use Chlorofluorocarbons (CFCs) (CFC) foaming agent, and it is the use of polyethers organopolysiloxane as foaming agent, energy-conserving and environment-protective.Additionally, the preparation technology of the present invention is simple, with low cost, equipment requirements is low, production process environmental protection, it is easy to industrialized production, is suitable to popularization and application on a large scale.

Description

Environment-protecting polyurethane exterior wall cellular insulant
Technical field
The present invention relates to building material technical field, specifically a kind of environment-protecting polyurethane exterior wall cellular insulant.
Background technology
Much more typically common polyurethane material uses the polyether polyol that degree of functionality is many, hydroxyl value is high anti-with polyisocyanates Should, make the high molecular polymer of cross-linked structure.At present, polyurethane is as construction material, and volume of production is increasing, its tool Have that hardness is big, compressive strength is high, dimensional stability is preferable, light weight, heat conductivity are low, rate of closed hole more than 95%, anticorrosion antiwear The advantage such as good, purposes widely, can substitute for rubber, plastics, nylon etc., for airport, hotel, building materials, automobile factory, coal Ore deposit factory, cement plant, condo, villa, landscaping etc..Along with global energy is in short supply, each state all attaches great importance to the joint of the energy About, and at building field, along with continually developing of real estate, energy scarcity problem becomes increasingly conspicuous, and in building energy saving field, reduces One of important channel of building heating energy consumption is exactly the heat loss reducing building external structure to greatest extent, and body of wall is building How the main body of peripheral structure, allow materials for wall energy-conserving and environment-protective, be every country research construction material subject matter it One.
At present, the organic insulation material of China's large-scale use mainly has EPS (polystyrene foam), PS (extruded polystyrene Vinyl foam) and PU (polyurethane foam), all belonging to inflammable organic insulation material, maximum advantage is light weight, insulation, thermal insulation Good；Shortcoming is that fire savety is poor, inflammable the most aging and not environmentally.Discharge a large amount of toxic smog when burning, people can be made It is poisoned at short notice and suffocates, this is because in hard polyurethane foam, conventional foaming agent is Chlorofluorocarbons (CFCs) (CFC) foaming agent, But owing to Chlorofluorocarbons (CFCs) (CFC) foaming agent has destruction to atmospheric ozone layer, in order to safeguard ecological environment, international convention is It is produced and uses and be made that strict restriction and regulation.
Summary of the invention
It is an object of the invention to provide and a kind of have that high resistance to compression degree, high degree of drawing, shrinkage be good and the environmental protection of environmental protection Type polyurethane exterior wall cellular insulant.
The present invention solves the technical scheme of technical problem:
A kind of environment-protecting polyurethane exterior wall cellular insulant, is foamed by the raw material of following weight and makes:
Isocyanates 30-40 part, polyether polyol 30-40 part, catalyst 2-4 part, fire retardant 1-3 part, foaming agent 1-3 part, silicon Oil 3-5 part, portland cement 20-30 part, lignocellulose 10-20 part, sepiolite fibre 10-20 part, deionized water 20-30 Part.
Above-mentioned environment-protecting polyurethane exterior wall cellular insulant, it is preferable that foamed by the raw material of following weight and make Become:
Isocyanates 35 parts, polyether polyol 35 parts, catalyst 3 parts, fire retardant 2 parts, foaming agent 2 parts, silicone oil 4 parts, silicate Cement 25 parts, lignocellulose 15 parts, sepiolite fibre 15 parts, deionized water 25 parts.
Described isocyanates is poly methylene poly phenyl poly isocyanate.
Tetramethylolmethane ether that described polyether polyol is and the mixture of glycerin polyether, mass ratio is 1:2, and molecular weight is 4800-5000, hydroxyl value is 470-490mgKOH/g, and viscosity is 3200mPa s.
Described catalyst is N, N-dimethyl cyclohexyl amine.
Described fire retardant is chloroalkyl phosphate esters.
Described foaming agent is polyethers organopolysiloxane.
The granularity of described portland cement is 30-40 mesh, and bulk density is 95-105kg/m2, heat conductivity is less than 0.026W/m.K。
The preparation method of above-mentioned environment-protecting polyurethane exterior wall cellular insulant comprises the following steps:
(1) according to the proportion by weight of above-mentioned raw materials；
(2) successively by isocyanates, polyether polyol, catalyst, fire retardant, foaming agent, silicone oil, portland cement, wooden fibre Dimension element, sepiolite fibre, deionized water join in the material pump of high-pressure spray gun, and in material pump, use 1200-1400 turns/min Speed stirring 15-25min, makes each raw material be sufficiently mixed uniformly, obtains product.
The product have the advantages that: environment-protecting polyurethane exterior wall cellular insulant of the present invention has intensity height, matter The feature that amount is light, heat conduction is low, dimensional stability is good, insulation effect is good, wear-and corrosion-resistant is good, also has efficient fire-retardant energy Power, and do not use Chlorofluorocarbons (CFCs) (CFC) foaming agent, and it is the use of polyethers organopolysiloxane as foaming agent, energy-conserving and environment-protective. Using this product, not only the function in house is substantially improved, and can alleviate the deadweight of building, meets the aesthetic of people and wants Ask.Additionally, the preparation technology of the present invention is simple, with low cost, equipment requirements is low, production process environmental protection, it is easy to industrialized production, Be suitable to popularization and application on a large scale.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described, but the invention is not limited in these embodiments.
Embodiment 1
A kind of environment-protecting polyurethane exterior wall cellular insulant, is foamed by the raw material of following weight and makes:
Isocyanates 30kg, polyether polyol 30kg, catalyst 2kg, fire retardant 1kg, foaming agent 1kg, silicone oil 3kg, silicate Cement 20kg, lignocellulose 10kg, sepiolite fibre 10kg, deionized water 20kg.
Described isocyanates is poly methylene poly phenyl poly isocyanate.
Tetramethylolmethane ether that described polyether polyol is and the mixture of glycerin polyether, mass ratio is 1:2, and molecular weight is 4800, hydroxyl value is 470mgKOH/g, and viscosity is 3200mPa s.
Described catalyst is N, N-dimethyl cyclohexyl amine.
Described fire retardant is chloroalkyl phosphate esters.
Described foaming agent is polyethers organopolysiloxane.
The granularity of described portland cement is 30 mesh, and bulk density is 95kg/m2, heat conductivity is less than 0.026W/m.K.
The preparation method of above-mentioned environment-protecting polyurethane exterior wall cellular insulant comprises the following steps:
(1) according to the proportion by weight of above-mentioned raw materials；
(2) successively by isocyanates, polyether polyol, catalyst, fire retardant, foaming agent, silicone oil, portland cement, wooden fibre Dimension element, sepiolite fibre, deionized water join in the material pump of high-pressure spray gun, use the speed of 1200 turns/min to stir in material pump Mix 15min, make each raw material be sufficiently mixed uniformly, obtain product.
Embodiment 2
A kind of environment-protecting polyurethane exterior wall cellular insulant, is foamed by the raw material of following weight and makes:
Isocyanates 35kg, polyether polyol 35kg, catalyst 3kg, fire retardant 2kg, foaming agent 2kg, silicone oil 4kg, silicate Cement 25kg, lignocellulose 15kg, sepiolite fibre 15kg, deionized water 25kg.
Described isocyanates is poly methylene poly phenyl poly isocyanate.
Tetramethylolmethane ether that described polyether polyol is and the mixture of glycerin polyether, mass ratio is 1:2, and molecular weight is 4900, hydroxyl value is 480mgKOH/g, and viscosity is 3200mPa s.
Described catalyst is N, N-dimethyl cyclohexyl amine.
Described fire retardant is chloroalkyl phosphate esters.
Described foaming agent is polyethers organopolysiloxane.
The granularity of described portland cement is 35 mesh, and bulk density is 100kg/m2, heat conductivity is less than 0.026W/m.K.
The preparation method of above-mentioned environment-protecting polyurethane exterior wall cellular insulant comprises the following steps:
(1) according to the proportion by weight of above-mentioned raw materials；
(2) successively by isocyanates, polyether polyol, catalyst, fire retardant, foaming agent, silicone oil, portland cement, wooden fibre Dimension element, sepiolite fibre, deionized water join in the material pump of high-pressure spray gun, use the speed of 1300 turns/min to stir in material pump Mix 20min, make each raw material be sufficiently mixed uniformly, obtain product.
Embodiment 3
A kind of environment-protecting polyurethane exterior wall cellular insulant, is foamed by the raw material of following weight and makes:
Isocyanates 40kg, polyether polyol 40kg, catalyst 4kg, fire retardant 3kg, foaming agent 3kg, silicone oil 5kg, silicate Cement 30kg, lignocellulose 20kg, sepiolite fibre 20kg, deionized water 30kg.
Described isocyanates is poly methylene poly phenyl poly isocyanate.
Tetramethylolmethane ether that described polyether polyol is and the mixture of glycerin polyether, mass ratio is 1:2, and molecular weight is 5000, hydroxyl value is 490mgKOH/g, and viscosity is 3200mPa s.
Described catalyst is N, N-dimethyl cyclohexyl amine.
Described fire retardant is chloroalkyl phosphate esters.
Described foaming agent is polyethers organopolysiloxane.
The granularity of described portland cement is 40 mesh, and bulk density is 105kg/m2, heat conductivity is less than 0.026W/m.K.
The preparation method of above-mentioned environment-protecting polyurethane exterior wall cellular insulant comprises the following steps:
(1) according to the proportion by weight of above-mentioned raw materials；
(2) successively by isocyanates, polyether polyol, catalyst, fire retardant, foaming agent, silicone oil, portland cement, wooden fibre Dimension element, sepiolite fibre, deionized water join in the material pump of high-pressure spray gun, use the speed of 1400 turns/min to stir in material pump Mix 25min, make each raw material be sufficiently mixed uniformly, obtain product.
The physical function parameter of the environment-protecting polyurethane exterior wall cellular insulant prepared embodiment 1-3 respectively enters Row detection, and contrast with existing conventional polyurethanes construction material, test result is as shown in table 1.
Performance indications Embodiment 1 Embodiment 2 Embodiment 3 Comparative example
Comprcssive strength MPa 0.329 0.332 0.337 0.228
HRR (KW/m2) 116 113 119 151
Heat conductivity w/ (m.k) 0.018 0.021 0.017 0.035
Rate of closed hole (%) 95.9 95.6 96.1 91.3
From table, the pressure resistance of environment-protecting polyurethane exterior wall cellular insulant prepared by above example of the present invention The indexs such as degree, HRR, heat conductivity and rate of closed hole all have than existing construction material and improve significantly, chilled or Ungauged regions under hot conditions, deform, expand, the phenomenon such as cracking, be the construction material that a kind of performance is good.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to previous embodiment The present invention is described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement Technical scheme described in example is modified, or wherein portion of techniques feature is carried out equivalent；And these amendment or Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (8)

1. an environment-protecting polyurethane exterior wall cellular insulant, it is characterised in that: foamed by the raw material of following weight Make:
Isocyanates 30-40 part, polyether polyol 30-40 part, catalyst 2-4 part, fire retardant 1-3 part, foaming agent 1-3 part, silicon Oil 3-5 part, portland cement 20-30 part, lignocellulose 10-20 part, sepiolite fibre 10-20 part, deionized water 20-30 Part；
Described isocyanates is poly methylene poly phenyl poly isocyanate.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: by following weight portion The raw material foaming of proportioning is made:
Isocyanates 35 parts, polyether polyol 35 parts, catalyst 3 parts, fire retardant 2 parts, foaming agent 2 parts, silicone oil 4 parts, silicate Cement 25 parts, lignocellulose 15 parts, sepiolite fibre 15 parts, deionized water 25 parts.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: described polyether polyols Tetramethylolmethane ether that alcohol is and the mixture of glycerin polyether, mass ratio is 1:2, and molecular weight is 4800-5000, and hydroxyl value is 470- 490mgKOH/g, viscosity is 3200mPa s.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: described catalyst is N, N-dimethyl cyclohexyl amine.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: described fire retardant is Chloroalkyl phosphate esters.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: described foaming agent is Polyethers organopolysiloxane.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: described silicate cement The granularity of mud is 30-40 mesh, and bulk density is 95-105kg/m2, heat conductivity is less than 0.026W/m.K.
Environment-protecting polyurethane exterior wall cellular insulant the most according to claim 1, it is characterised in that: its preparation method bag Include following steps:
(1) according to the proportion by weight of above-mentioned raw materials；
(2) successively by isocyanates, polyether polyol, catalyst, fire retardant, foaming agent, silicone oil, portland cement, wooden fibre Dimension element, sepiolite fibre, deionized water join in the material pump of high-pressure spray gun, and in material pump, use 1200-1400 turns/min Speed stirring 15-25min, makes each raw material be sufficiently mixed uniformly, obtains product.
CN201610627981.1A 2016-08-03 2016-08-03 Environment-protecting polyurethane exterior wall cellular insulant Pending CN106243693A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106366633A (en) * 2016-08-25 2017-02-01 谢松芬 Environment-friendly polyurethane outer wall foam heat insulating material
CN107057013A (en) * 2017-04-28 2017-08-18 杨建国 A kind of expanded material of releasing negative oxygen ion, preparation method and purposes
CN107200532A (en) * 2017-06-13 2017-09-26 合肥大麦灯箱器材有限公司 A kind of wall special utility insulation material and preparation method thereof
CN108706953A (en) * 2018-06-29 2018-10-26 南京红宝丽新材料有限公司 Homogeneous low heat conduction inorganic heat-insulation board of one kind and preparation method thereof

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106366633A (en) * 2016-08-25 2017-02-01 谢松芬 Environment-friendly polyurethane outer wall foam heat insulating material
CN107057013A (en) * 2017-04-28 2017-08-18 杨建国 A kind of expanded material of releasing negative oxygen ion, preparation method and purposes
CN107200532A (en) * 2017-06-13 2017-09-26 合肥大麦灯箱器材有限公司 A kind of wall special utility insulation material and preparation method thereof
CN108706953A (en) * 2018-06-29 2018-10-26 南京红宝丽新材料有限公司 Homogeneous low heat conduction inorganic heat-insulation board of one kind and preparation method thereof
CN108706953B (en) * 2018-06-29 2019-07-23 南京红宝丽新材料有限公司 Homogeneous low thermally conductive inorganic heat-insulation board of one kind and preparation method thereof

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Application publication date: 20161221