CN107722229A - A kind of insulating foam and preparation method thereof - Google Patents

A kind of insulating foam and preparation method thereof Download PDF

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Publication number
CN107722229A
CN107722229A CN201710887407.4A CN201710887407A CN107722229A CN 107722229 A CN107722229 A CN 107722229A CN 201710887407 A CN201710887407 A CN 201710887407A CN 107722229 A CN107722229 A CN 107722229A
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CN
China
Prior art keywords
foam
preparation
water
insulating foam
foamed material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710887407.4A
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Chinese (zh)
Inventor
陶卫建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Crystal New Mstar Technology Ltd
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Jiangsu Crystal New Mstar Technology Ltd
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Priority to CN201710887407.4A priority Critical patent/CN107722229A/en
Publication of CN107722229A publication Critical patent/CN107722229A/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
    • 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
    • C08J9/12—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
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • 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
    • 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
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • 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
    • C08J9/0066—Use of inorganic compounding ingredients
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • C08J2203/184—Binary blends of expanding agents of chemical foaming agent and physical blowing agent, e.g. azodicarbonamide and fluorocarbon
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic
    • C08K7/26—Silicon- containing compounds

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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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

A kind of insulating foam and preparation method thereof, belong to foamed material preparing technical field, comprise the following raw materials by weight percent：Toluene di-isocyanate(TDI) 40~50%, PPG 15~20%, expanded vermiculite 3~6%, silica 1~3%, dichlorodifluoromethane 2~8%, organic pigment 2~8%, catalyst 2~8%, foam stabiliser 1~3%, remaining be water.Preparation principle of the present invention is clear, and processing method is simple, compared with the foamed material prepared by conventional method, has more excellent compression strength, tensile strength and impact strength；In addition, polyurethane foam heat insulation material of the present invention is compared with prior art, in addition to possessing conventional polyurethanes foamed material high heat preservation performance, the foam contraction problem caused by each side reasons such as itself characteristic, production technology and direct labor's operative skill is also reduced, water tank deformation is avoided, rises and heave stupefied or even cracking phenomenon.

Description

A kind of insulating foam and preparation method thereof
Technical field
The invention belongs to foamed material preparing technical field, is related to a kind of foamed material, particularly relates to a kind of guarantor Warm foamed material and preparation method thereof.
Background technology
As the energy is increasingly in short supply and the continuous increase of environmental protection pressure, countries in the world all start to push exploitation renewable energy Source, wherein solar energy are the regenerative resource utilized and exploitation is most wide, development prospect is best, and it is each to be widely used in each row Industry, solar water heater industry are exactly one of them.China is richly stored with solar energy resources, and Solar use prospect is wide It is wealthy, it has been that the first of solar water heater in the world uses state and producing country at present.
It is well known that for solar water heater, the selection of water tank heat preserving material is vital, be can serve as at present The insulation material of water tank mainly has polyurethane foam, phenol formaldehyde foam, superfine fibre etc..Polyurethane foam is with gathering by isocyanates Ether composition mixing is poured into foaming in mould or water tank cavity and is made, and wherein polyether composition contains PPG, foaming Agent, catalyst, curing agent, fire retardant, stabilizer etc., because polyurethane foam has moulding process is simple, thermal conductivity factor is low etc. Advantage, it is the insulation material that water tank mainly uses.
Polyurethane hard foam in process of production, because of itself characteristic, production technology and direct labor's operative skill etc. The reason for each side, the problem of generally existing foam contraction, foam is easily caused to come off with casing part or all come off, finally Cause casing deformation, vacuum mouth of pipe foam cracking, What is more, and the polyurethane hard foam between inner bag and shell is laterally or longitudinally Cracking, greatly reduce the heat insulation effect of water tank.
The content of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, proposes a kind of insulating foam and preparation method thereof, Using new material and new process, can solve the problems, such as foam contraction, foam Transverse Cracks or longitudinal cracking, water is substantially improved The heat insulation effect of case, further improves performance.
The technical scheme is that：A kind of insulating foam, it is characterised in that the foamed material is by following weight The raw material composition of percentage：Toluene di-isocyanate(TDI) 40~50%, PPG 15~20%, expanded vermiculite 3~6%, titanium dioxide Silicon 1~3%, dichlorodifluoromethane 2~8%, organic pigment 2~8%, catalyst 2~8%, foam stabiliser 1~3%, remaining be water.
The particle diameter of the expanded vermiculite is 200 mesh.
The catalyst is diethanol monoisopropanolamine or AEEA.
The foam stabiliser is organic silicon foam stabiliser.
A kind of preparation method of insulating foam, preparation method are as follows：
(1) stock and weighing：Toluene di-isocyanate(TDI), PPG, expanded vermiculite, silica, dichlorodifluoromethane and Water is weighed standby one by one by proportioning；
(2) stir pre-dispersed：Organic pigment, foam stabiliser are mixed evenly, it is rear to add filler and water, continue stirring point Dissipate uniform；
(3) foam：Nitrogen bubble reaction is led to by reactor bottom, then vacuumized, atmospheric closed reacts 2 hours,
(4) heat：2 h are heated in 100 DEG C of reactors；
(5) size mixing：Photochemical catalyst is added in ground slurry and be dispersed with stirring uniformly；
(6) it is molded：Slurry is placed in cooling and shaping in model；
(7) it is stripped：Take mould apart, take out foam finished product；
(8) examine：Packed after examining indices qualified.
Beneficial effects of the present invention are：A kind of insulating foam provided by the invention and preparation method thereof, preparation principle Clearly, processing method is simple, and the present invention uses PPG in foaming formulation, with the foamed material prepared by conventional method Compare, there is more excellent compression strength, tensile strength and impact strength；In addition, polyurethane foam heat insulation material of the present invention with Prior art is compared, and in addition to possessing conventional polyurethanes foamed material high heat preservation performance, is also reduced because of itself characteristic, production Foam contraction problem caused by each side reason such as technique and direct labor's operative skill, avoid water tank deformation, rise heave it is stupefied The even phenomenon of cracking.
Embodiment
Below by embodiment, the invention will be further described：
Embodiment 1
A kind of insulating foam, foamed material comprise the following raw materials by weight percent：Toluene di-isocyanate(TDI) 40%, gather Ethoxylated polyhydric alcohol 15%, expanded vermiculite 3%, silica 1 %, dichlorodifluoromethane 2%, organic pigment 2%, catalyst 2%, foam stabilization Agent 1%, remaining be water.
Embodiment 2
A kind of insulating foam, foamed material comprise the following raw materials by weight percent：Toluene di-isocyanate(TDI) 50%, gather Ethoxylated polyhydric alcohol 20%, expanded vermiculite 6%, silica 3%, dichlorodifluoromethane 8%, organic pigment 8%, catalyst 8%, foam stabilization Agent 3%, remaining be water.
A kind of insulating foam, the particle diameter of expanded vermiculite is 200 mesh；Catalyst is diethanol monoisopropanolamine or hydroxyl second Base ethylenediamine；Foam stabiliser is organic silicon foam stabiliser.A kind of preparation method of insulating foam, preparation method is such as Under：
(1) stock and weighing：Toluene di-isocyanate(TDI), PPG, expanded vermiculite, silica, dichlorodifluoromethane and Water is weighed standby one by one by proportioning；
(2) stir pre-dispersed：Organic pigment, foam stabiliser are mixed evenly, it is rear to add filler and water, continue stirring point Dissipate uniform；
(3) foam：Nitrogen bubble reaction is led to by reactor bottom, then vacuumized, atmospheric closed reacts 2 hours,
(4) heat：2 h are heated in 100 DEG C of reactors；
(5) size mixing：Photochemical catalyst is added in ground slurry and be dispersed with stirring uniformly；
(6) it is molded：Slurry is placed in cooling and shaping in model；
(7) it is stripped：Take mould apart, take out foam finished product；
(8) examine：Packed after examining indices qualified.

Claims (5)

1. a kind of insulating foam, it is characterised in that the foamed material comprises the following raw materials by weight percent：Toluene Diisocyanate 40~50%, PPG 15~20%, expanded vermiculite 3~6%, silica 1~3%, dichlorodifluoromethane 2 ~8%, organic pigment 2~8%, catalyst 2~8%, foam stabiliser 1~3%, remaining be water.
A kind of 2. insulating foam according to claim 1, it is characterised in that：The particle diameter of the expanded vermiculite is 200 Mesh.
A kind of 3. insulating foam according to claim 1, it is characterised in that：The catalyst is diethanol list isopropyl Hydramine or AEEA.
A kind of 4. insulating foam according to claim 1, it is characterised in that：The foam stabiliser is organic silicon Foam stabiliser.
5. a kind of preparation method of insulating foam as claimed in claim 1, it is characterised in that preparation method is as follows：
(1) stock and weighing：Toluene di-isocyanate(TDI), PPG, expanded vermiculite, silica, dichlorodifluoromethane and Water is weighed standby one by one by proportioning；
(2) stir pre-dispersed：Organic pigment, foam stabiliser are mixed evenly, it is rear to add filler and water, continue stirring point Dissipate uniform；
(3) foam：Nitrogen bubble reaction is led to by reactor bottom, then vacuumized, atmospheric closed reacts 2 hours,
(4) heat：2 h are heated in 100 DEG C of reactors；
(5) size mixing：Photochemical catalyst is added in ground slurry and be dispersed with stirring uniformly；
(6) it is molded：Slurry is placed in cooling and shaping in model；
(7) it is stripped：Take mould apart, take out foam finished product；
(8) examine：Packed after examining indices qualified.
CN201710887407.4A 2017-09-27 2017-09-27 A kind of insulating foam and preparation method thereof Pending CN107722229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710887407.4A CN107722229A (en) 2017-09-27 2017-09-27 A kind of insulating foam and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710887407.4A CN107722229A (en) 2017-09-27 2017-09-27 A kind of insulating foam and preparation method thereof

Publications (1)

Publication Number Publication Date
CN107722229A true CN107722229A (en) 2018-02-23

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CN201710887407.4A Pending CN107722229A (en) 2017-09-27 2017-09-27 A kind of insulating foam and preparation method thereof

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109575218A (en) * 2018-11-14 2019-04-05 安徽明光中兴阳光新能源科技有限公司 A kind of solar water container polyurethane inorganic flame-retardant thermal insulation material and preparation method thereof
CN109593177A (en) * 2018-11-14 2019-04-09 安徽明光中兴阳光新能源科技有限公司 A kind of solar water heater flame-retardant thermal insulation material and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105693976A (en) * 2016-02-03 2016-06-22 广西吉顺能源科技有限公司 Polyurethane foam thermal insulation material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105693976A (en) * 2016-02-03 2016-06-22 广西吉顺能源科技有限公司 Polyurethane foam thermal insulation material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李绍雄等: "《聚氨酯树脂及其应用》", 31 May 2002, 化学工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109575218A (en) * 2018-11-14 2019-04-05 安徽明光中兴阳光新能源科技有限公司 A kind of solar water container polyurethane inorganic flame-retardant thermal insulation material and preparation method thereof
CN109593177A (en) * 2018-11-14 2019-04-09 安徽明光中兴阳光新能源科技有限公司 A kind of solar water heater flame-retardant thermal insulation material and preparation method thereof

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Application publication date: 20180223

RJ01 Rejection of invention patent application after publication