CN103408722A - Foaming technique of polyurethane board using nano aerogel - Google Patents

Foaming technique of polyurethane board using nano aerogel Download PDF

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Publication number
CN103408722A
CN103408722A CN2013103793231A CN201310379323A CN103408722A CN 103408722 A CN103408722 A CN 103408722A CN 2013103793231 A CN2013103793231 A CN 2013103793231A CN 201310379323 A CN201310379323 A CN 201310379323A CN 103408722 A CN103408722 A CN 103408722A
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aerogel
pressure
foaming
machine
polyurethane sheet
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CN103408722B (en
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顾国东
骆波
杨永良
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JIANGSU JIEYANG TECHNOLOGY CO., LTD.
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WUXI JIEYANG JIENENG TECHNOLOGY Co Ltd
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Abstract

The invention relates to a foaming technique of a polyurethane board using nano aerogel, belonging to the technical field of construction materials. The technique comprises the following steps: mixing, preparing a glass fiber grid fabric, foaming, curing to form, and carrying out after-treatment to obtain the product polyurethane board using nano aerogel. After adding the nano porous super-light-weight high-efficiency heat-insulation SiO2 aerogel additive in the polyurethane foaming process, the critical properties of the product are enhanced, i.e. the density heat conductivity coefficient are further lowered, and the flame retardancy is enhanced.

Description

The polyurethane sheet foam process of applying nano aerogel
Technical field
The present invention relates to a kind of polyurethane sheet foam process of applying nano aerogel, belong to building materials technology field.
Background technology
The production technique of existing Rigid foam polyurethane is filled polyurethane industrial chemicals in two layers of fiberglass gridding cloth, through heating, high-pressure foam, pressure-bearing solidify, the moulding cutting.Its Specifeca tion speeification: urethane density 40 ~ 42kg/m3, compressive strength >=150mPa, tensile strength >=100mPa, thermal conductivity 0.022w/mk, bonding strength >=150mPa.
The JY Rigid foam polyurethane used in existing external thermal insulation system, can play heat insulating, the purpose of sound insulation and noise reduction.
Summary of the invention
The object of the present invention is to provide a kind of polyurethane sheet foam process of applying nano aerogel, the thickness of the polyurethane sheet of its production significantly reduces, and whole metope load-bearing alleviates, constructability.
According to technical scheme provided by the invention, the polyurethane sheet foam process of applying nano aerogel, step is by weight:
(1) mix: get 1-2 part SiO 2The aerogel pulvis drops into storage tank, then adds white material, i.e. polyethers 40-50 part, suds-stabilizing agent 1.5-2.5 part, catalyzer 2.5-3.5 part, whipping agent 1-1.5 part, silicone oil 0.8-1.2 part, fire retardant 0.8-1.2 part; At storage tank, fully mix, mixing speed 80-100r/min, stand-by after churning time 15-20min;
(2) preparation of fiberglass gridding cloth: get on two blowing rollers that fiberglass gridding cloth is layed in material drain system, form the upper and lower two-layer pressure-bearing machine that is transported to;
(3) foaming: get black material, i.e. polymeric MDI, wherein isocyanic ester 20-25 part, ditan 8-10 part, vulcabond 20-25 part; With step (1) gained mixture, fully mix the rear high pressure foaming machine mixed foaming of all sending into, temperature is 22-25 ℃, and pressure is 1.2-1.6MPa;
(4) curing molding: high pressure foaming machine waters step (3) gained mixture to be filled in step (2) the double glazing fibrous mesh cloth that transmission is walked continuously, and, by pressure-bearing machine pressure-bearing curing molding, obtains work in-process; Forming pressure is 90-120MPa, and molding time is 5-6min;
(5) aftertreatment: the work in-process of step (4) gained cut into desired shape through numerical control cutting machine, and obtain the finished product polyurethane sheet after by automatic packing machine, packing.
Described SiO 2Aerogel pulvis particle diameter≤0.10mm.Nanoporous aerogel has following performance: a, nano-porous structure (1-100nm); B, low density (1-500kg/m3; C, low-k (1.1-2.5) d, low thermal conductivity (0.013-0.025w/m.k); E, high porosity (80-99.8%); F, high-specific surface area (200-1000 ㎡/g) etc.
Described polyethers is polyether glycol, and its functionality is 5-8.
Beneficial effect of the present invention: the present invention passes through to add nanoporous Ultralight effectively insulating SiO in the foaming process of urethane 2After the aerogel additive, the key property of this product increases, and further reduces as density and thermal conductivity, and flame retardant properties is improved.This new production technique makes the performance advantage of Rigid foam polyurethane be not fully exerted, and in Practical Project, the thickness of Rigid foam polyurethane can reduce by 30%, whole metope light load-bearing, constructability, and construction costs is also cheap.
The accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Described nanoporous aerogel is purchased from ShaoXing,ZheJiang city nano High Seience Technology Co., Ltd..
Embodiment 1
As shown in Figure 1, the polyurethane sheet foam process of applying nano aerogel, step is by weight:
(1) mix: get 1 part of SiO 2The aerogel pulvis drops into storage tank, then adds white material, i.e. 40 parts of polyethers, 1.5 parts of suds-stabilizing agents, 2.5 parts of catalyzer, 1 part of whipping agent, 0.8 part of silicone oil, 0.8 part of fire retardant; At storage tank, fully mix, mixing speed 80r/min, stand-by after churning time 15min;
(2) preparation of fiberglass gridding cloth: get on two blowing rollers that fiberglass gridding cloth is layed in material drain system, form the upper and lower two-layer pressure-bearing machine that is transported to;
(3) foaming: get black material, i.e. polymeric MDI, wherein 20 parts of isocyanic ester, 8 parts of ditans, 20 parts of vulcabond; With step (1) gained mixture, fully mix the rear high pressure foaming machine mixed foaming of all sending into, temperature is 22 ℃, and pressure is 1.2MPa;
(4) curing molding: high pressure foaming machine waters step (3) gained mixture to be filled in step (2) the double glazing fibrous mesh cloth that transmission is walked continuously, and, by pressure-bearing machine pressure-bearing curing molding, obtains work in-process; Forming pressure is 90MPa, and molding time is 5min;
(5) aftertreatment: the work in-process of step (4) gained cut into desired shape through numerical control cutting machine, and obtain the finished product polyurethane sheet after by automatic packing machine, packing.
Described SiO 2Aerogel pulvis particle diameter≤0.10mm.
Embodiment 2
As shown in Figure 1, the polyurethane sheet foam process of applying nano aerogel, step is by weight:
(1) mix: get 2 parts of SiO 2The aerogel pulvis drops into storage tank, then adds white material, i.e. 50 parts of polyethers, 2.5 parts of suds-stabilizing agents, 3.5 parts of catalyzer, 1.5 parts of whipping agents, 1.2 parts of silicone oil, 1.2 parts of fire retardants; At storage tank, fully mix, mixing speed 100r/min, stand-by after churning time 20min;
(2) preparation of fiberglass gridding cloth: get on two blowing rollers that fiberglass gridding cloth is layed in material drain system, form the upper and lower two-layer pressure-bearing machine that is transported to;
(3) foaming: get black material, namely polymeric MDI is 55 parts, wherein 25 parts of isocyanic ester, 10 parts of ditans, 25 parts of vulcabond; With step (1) gained mixture, fully mix the rear high pressure foaming machine mixed foaming of all sending into, temperature is 25 ℃, and pressure is 1.6MPa;
(4) curing molding: high pressure foaming machine waters step (3) gained mixture to be filled in step (2) the double glazing fibrous mesh cloth that transmission is walked continuously, and, by pressure-bearing machine pressure-bearing curing molding, obtains work in-process; Forming pressure is 120MPa, and molding time is 6min;
(5) aftertreatment: the work in-process of step (4) gained cut into desired shape through numerical control cutting machine, and obtain the finished product polyurethane sheet after by automatic packing machine, packing.
Described SiO 2Aerogel pulvis particle diameter≤0.10mm.
Embodiment 3
As shown in Figure 1, the polyurethane sheet foam process of applying nano aerogel, step is by weight:
(1) mix: get 1 part of SiO 2The aerogel pulvis drops into storage tank, then adds white material, i.e. 45 parts of polyethers, 2 parts of suds-stabilizing agents, 3 parts of catalyzer, 1 part of whipping agent, 1 part of silicone oil, 1 part of fire retardant; At storage tank, fully mix, mixing speed 90r/min, stand-by after churning time 18min;
(2) preparation of fiberglass gridding cloth: get on two blowing rollers that fiberglass gridding cloth is layed in material drain system, form the upper and lower two-layer pressure-bearing machine that is transported to;
(3) foaming: get black material, i.e. polymeric MDI, wherein 23 parts of isocyanic ester, 9 parts of ditans, 23 parts of vulcabond; With step (1) gained mixture, fully mix the rear high pressure foaming machine mixed foaming of all sending into, temperature is 24 ℃, and pressure is 1.4MPa;
(4) curing molding: high pressure foaming machine waters step (3) gained mixture to be filled in step (2) the double glazing fibrous mesh cloth that transmission is walked continuously, and, by pressure-bearing machine pressure-bearing curing molding, obtains work in-process; Forming pressure is 100MPa, and molding time is 5min;
(5) aftertreatment: the work in-process of step (4) gained cut into desired shape through numerical control cutting machine, and obtain the finished product polyurethane sheet after by automatic packing machine, packing.
Described SiO 2Aerogel pulvis particle diameter≤0.10mm.
Polyurethane foam technique should increase the appendix auxiliary agents such as binding agent on the basis of original formula, must improve the mobility of foam, to reach the homogeneity of urethane density.
The performance perameter of a new generation's Rigid foam polyurethane: urethane density 30-32kg/m3, compression Strong degree >=150mPa, stretching Strong degree >=100mPa, thermal conductivity≤0.015w/mk, water-intake rate≤3%, water vapor transmission≤4.0ng/pa.m.s, dimensional stability≤0.5%, flame retardant properties: A level.

Claims (3)

1. the polyurethane sheet foam process of applying nano aerogel is characterized in that step is by weight:
(1) mix: get 1-2 part SiO 2The aerogel pulvis drops into storage tank, then adds white material, i.e. polyethers 40-50 part, suds-stabilizing agent 1.5-2.5 part, catalyzer 2.5-3.5 part, whipping agent 1-1.5 part, silicone oil 0.8-1.2 part, fire retardant 0.8-1.2 part; At storage tank, fully mix, mixing speed 80-100r/min, stand-by after churning time 15-20min;
(2) preparation of fiberglass gridding cloth: get on two blowing rollers that fiberglass gridding cloth is layed in material drain system, form the upper and lower two-layer pressure-bearing machine that is transported to;
(3) foaming: get black material, i.e. polymeric MDI, wherein isocyanic ester 20-25 part, ditan 8-10 part, vulcabond 20-25 part; With step (1) gained mixture, fully mix the rear high pressure foaming machine mixed foaming of all sending into, temperature is 22-25 ℃, and pressure is 1.2-1.6MPa;
(4) curing molding: high pressure foaming machine waters step (3) gained mixture to be filled in step (2) the double glazing fibrous mesh cloth that transmission is walked continuously, and, by pressure-bearing machine pressure-bearing curing molding, obtains work in-process; Forming pressure is 90-120MPa, and molding time is 5-6min;
(5) aftertreatment: the work in-process of step (4) gained cut into desired shape through numerical control cutting machine, and obtain the finished product polyurethane sheet after by automatic packing machine, packing.
2. the polyurethane sheet foam process of applying nano aerogel as claimed in claim 1, is characterized in that described SiO 2Aerogel pulvis particle diameter≤0.10mm.
3. the polyurethane sheet foam process of applying nano aerogel as claimed in claim 1, is characterized in that described polyethers is polyether glycol, and its functionality is 5-8.
CN201310379323.1A 2013-08-27 2013-08-27 The polyurethane sheet foam process of applying nano aerogel Active CN103408722B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103865097A (en) * 2014-03-06 2014-06-18 山东圣泉化工股份有限公司 Phenolic foam plate containing nanometer aerogel and production method of phenolic foam plate
CN104650310A (en) * 2015-02-16 2015-05-27 上海福精特金属装饰材料有限公司 Modified rigid polyurethane foam heat-insulating layer, integrated wall panel and preparation method thereof
CN105037684A (en) * 2015-09-10 2015-11-11 无锡捷阳节能科技股份有限公司 Polyurethane foaming technology
CN107034678A (en) * 2017-05-15 2017-08-11 爱彼爱和新材料有限公司 A kind of polyurethane and aerosil composite insulation material and preparation method
CN108409931A (en) * 2018-03-15 2018-08-17 苏州甫众塑胶有限公司 A kind of preparation method of polyurethane thermal insulation wallboard for building
CN108997557A (en) * 2018-09-11 2018-12-14 界首永恩机电科技有限公司 A kind of preparation method of environmental protection TPU
CN109206584A (en) * 2018-09-11 2019-01-15 界首永恩机电科技有限公司 A kind of flame-proof environmental protection polyurethane elastomer
CN110804149A (en) * 2019-11-14 2020-02-18 江苏雅克科技股份有限公司 Reinforced polyurethane thermal insulation material for LNG liquid cargo containment system and preparation method thereof
CN114734708A (en) * 2022-04-08 2022-07-12 安徽鼎奂节能科技有限公司 Polyurethane plate and preparation method of polyurethane core layer thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102173147A (en) * 2011-01-01 2011-09-07 夏良强 Modified hard bubble polyurethane composite plate and manufacturing method thereof
CN102658700A (en) * 2012-05-03 2012-09-12 无锡捷阳节能科技有限公司 Automatic production line for rigid foam polyurethane composite board

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102173147A (en) * 2011-01-01 2011-09-07 夏良强 Modified hard bubble polyurethane composite plate and manufacturing method thereof
CN102658700A (en) * 2012-05-03 2012-09-12 无锡捷阳节能科技有限公司 Automatic production line for rigid foam polyurethane composite board

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103865097A (en) * 2014-03-06 2014-06-18 山东圣泉化工股份有限公司 Phenolic foam plate containing nanometer aerogel and production method of phenolic foam plate
CN103865097B (en) * 2014-03-06 2016-06-22 山东圣泉新材料股份有限公司 A kind of phenolic foam board comprising nanoporous aerogel and preparation method
CN104650310A (en) * 2015-02-16 2015-05-27 上海福精特金属装饰材料有限公司 Modified rigid polyurethane foam heat-insulating layer, integrated wall panel and preparation method thereof
CN105037684A (en) * 2015-09-10 2015-11-11 无锡捷阳节能科技股份有限公司 Polyurethane foaming technology
CN107034678A (en) * 2017-05-15 2017-08-11 爱彼爱和新材料有限公司 A kind of polyurethane and aerosil composite insulation material and preparation method
CN107034678B (en) * 2017-05-15 2019-05-10 爱彼爱和新材料有限公司 A kind of polyurethane and aerosil composite insulation material and preparation method
CN108409931A (en) * 2018-03-15 2018-08-17 苏州甫众塑胶有限公司 A kind of preparation method of polyurethane thermal insulation wallboard for building
CN108997557A (en) * 2018-09-11 2018-12-14 界首永恩机电科技有限公司 A kind of preparation method of environmental protection TPU
CN109206584A (en) * 2018-09-11 2019-01-15 界首永恩机电科技有限公司 A kind of flame-proof environmental protection polyurethane elastomer
CN110804149A (en) * 2019-11-14 2020-02-18 江苏雅克科技股份有限公司 Reinforced polyurethane thermal insulation material for LNG liquid cargo containment system and preparation method thereof
CN114734708A (en) * 2022-04-08 2022-07-12 安徽鼎奂节能科技有限公司 Polyurethane plate and preparation method of polyurethane core layer thereof

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Address after: 214196 Sunshine Industrial Zone, Donggang Town, Xishan District, Jiangsu, Wuxi

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Denomination of invention: Polyurethane foam foaming process using nano aerogels

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