CN106632960A - High-strength semi-rigid polyurethane foam and application thereof - Google Patents
High-strength semi-rigid polyurethane foam and application thereof Download PDFInfo
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- CN106632960A CN106632960A CN201610913971.4A CN201610913971A CN106632960A CN 106632960 A CN106632960 A CN 106632960A CN 201610913971 A CN201610913971 A CN 201610913971A CN 106632960 A CN106632960 A CN 106632960A
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- polyurethane foam
- semi
- high intensity
- foam
- hard polyurethane
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- 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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6648—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6651—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
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- 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
- 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
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- 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
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
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- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
-
- 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
- C08K2201/011—Nanostructured additives
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to high-strength semi-rigid polyurethane foam and an application thereof and belongs to the technical field of polyurethane foams. The technical problem to be solved in the invention is to provide the high-strength semi-rigid polyurethane foam. The polyurethane foam is prepared by foaming the following components in parts by weight: 100-115 parts of polyether polyol, 1.5-3 parts of silicone oil, 0.1-0.2 part of tris(3-dimethylaminopropyl)amine, 1-1.5 parts of a catalyst, 25-30 parts of a foaming agent, 125-135 parts of isocyanate and 0.5-1 part of carbon nano tubes. The semi-rigid polyurethane foam disclosed by the invention is readily available in preparation materials, low in cost and high in strength, and has a compression strength of 130kPa or higher. Moreover, the preparation process is simple, the preparation temperature is normal temperature, irritant gases are not produced in the foaming process, and the semi-rigid polyurethane foam is safe and environment-friendly.
Description
Technical field
The present invention relates to high intensity semi-hard polyurethane foam and its application, belong to polyurethane foam technology field.
Background technology
Because environmental pollution is serious, the life stress increase of people, tumor incidence constantly rises, and radiotherapy is treatment
The important means of the diseases such as tumor, radiotherapy Postural immobilization is the important step in radiotherapy.Guarantee from tumor-localizing to treatment meter
Delineate meter, simulation, confirm and treat the concordance of patient body position during pendulum position, the precision of radiotherapy could be ensured.Due to suffering from
The individual variation of person, after Radiation treatment plans are formulated, needs field fabrication radiotherapy Postural immobilization pattern.Polyurethane foam is used for radiotherapy body
Position is fixed have it is fixed completely, make simple, structure very firmly, low cost and other advantages.
Polyurethane semi-rigid foam plastics (abbreviation polyurethane semihard foam) are one of several big kinds of polyurethane.It is a kind of
Foam of the performance between soft polyurethane foam and between hard bubbling, feature is that have higher compression load value and higher density, its
Crosslink density is only second to hard bubble far above soft bubble.These features partly hard bubbled determine that it is not suitable for making cushion material, mainly
For damping and energy-absorbing material etc..
Although polyurethane semihard foam is with higher compressive strength, density is larger, which limits polyurethane semihard
The use range of bubble.If reducing its density, intensity also can reduce accordingly.And for radiotherapy patient, whole radiotherapy in the treatment mistake
Cheng Zhong, radiotherapy localization pad needs repeatedly to use.If intensity is not high, it is easy to deform, so as to patient cannot be completely fixed.
Therefore, it is badly in need of a kind of high-strength polyurethane semihard foam material, improves the service life of locating pad.
The content of the invention
First technical problem that the present invention is solved is to provide a kind of semi-hard polyurethane foam of high intensity, compressive strength
Up to more than 140kPa.
High intensity semi-hard polyurethane foam of the present invention, by the component of following weight portion, is prepared from by foaming：
Wherein, the catalyst is stannous iso caprylate or dibutyl tin laurate.
The hydroxyl value of preferred, polyethers polyhydric alcohol is 400～500, more preferably 430.
Preferably, the isocyanates are in polyphenyl polymethylene polyisocyanates, methyl diphenylene diisocyanate
At least one.
Preferably, the catalyst is stannous iso caprylate.
The density of high intensity semi-hard polyurethane foam of the present invention be 30～35kg/m3, compressive strength be 130～
150kPa。
Second technical problem that the present invention is solved is to provide high intensity semi-hard polyurethane foam of the present invention and exists
Application in radiotherapy Postural immobilization.
The high intensity semi-hard polyurethane foam of the present invention, can be applicable to Postural immobilization during radiotherapy, with general
The fixation of polyurethane foam is complete, making is simple, structure very firm, low cost and other advantages.With traditional half hard-foam polyurethane phase
Than density is less, and intensity is higher, for the preparation that radiotherapy position positions foam pad, can improve the service life of locating pad.
The 3rd technical problem that the present invention is solved is to provide the radiotherapy by made by semi-hard polyurethane foam of the present invention and determines
Position foam pad.
The present invention also provides the preparation method of radiotherapy localization foam pad of the present invention.
The method step is as follows：
A, foaming agent, CNT, catalyst, three (dimethylaminopropyl) amine, silicone oil are mixed with polyether polyol, obtained
White material；
B, the molding bag of radiotherapy localization pad is laid in molding masterplate, isocyanates are mixed with white material, pour radiotherapy into
In the molding bag of locating pad；
C, fixation postures personnel are needed to lie low on molding bag；
Material in d, molding bag starts foaming, fills the space between human body and molding masterplate, 5～10 minutes solidify afterwards
Shaping, obtains radiotherapy localization foam pad.
Compared with prior art, the present invention has the advantages that：
1. semi-hard polyurethane foam of the present invention, its preparing raw material is easy to get, with low cost, and intensity is high, and compressive strength is reachable
More than 130kPa.
2. semi-hard polyurethane foam of the present invention, preparation process is simple, preparation temperature is room temperature, and the nothing in foaming process
Irritative gass are produced, safety and environmental protection.
3. the semi-hard polyurethane foam of the present invention, adds CNT, with excellent compressive strength, can be prepared into and put
Positioning foam pad is treated, good fixing effect, patient's comfort is good.
Description of the drawings
Fig. 1 is semi-hard polyurethane foam Mechanics Performance Testing curve prepared by the embodiment of the present invention 1.
Fig. 2 is semi-hard polyurethane foam Mechanics Performance Testing curve prepared by comparative example of the present invention 1.
Specific embodiment
High intensity semi-hard polyurethane foam of the present invention, by the component of following weight portion, is prepared from by foaming：
Wherein, the catalyst is stannous iso caprylate or dibutyl tin laurate.
Wherein, primary raw material when polyether polyol is polyurethane foam, the hydroxyl value of preferred, polyethers polyhydric alcohol is 400～
500, more preferably 430.
Silicone oil stable bubble hole structure and can adjust abscess-size size as foam stabiliser, improve between compound
Intersolubility, so as to prepare the foamed product of even structure, excellent performance.If the addition of silicone oil more at most can cause to gather
The abscess-size of urethane foams is excessive, structure is uneven, and pore wall thickness is reduced.Therefore, semi-hard polyurethane foam of the present invention
Content control be advisable at 1.5～3 parts.
Catalyst of the present invention can accelerate polyether polyol to crosslink reaction with isocyanates, and preferred catalyst is different pungent
Sour stannous or dibutyl tin laurate, more preferably stannous iso caprylate.
The present invention does not have special requirement to the species of foaming agent, and the polyurethane foams that can be bought on the market is fitted
For the present invention, for example with the foaming agent of the models such as HCFC-14LB, HCFC-141B.
Isocyanates are the primary raw material with polyether polyol reaction, preferably polyphenyl polymethylene polyisocyanates
(thick MDI, and for PAPI) or methyl diphenylene diisocyanate (pure MDI), it also may be preferable for for polyphenyl polymethylene polyisocyanate
The mixing (polymeric MDI) of cyanate and methyl diphenylene diisocyanate.
The density of the high intensity semi-hard polyurethane foam of the present invention is 30～35kg/m3, and compressive strength is 130
～150kPa.
High intensity semi-hard polyurethane foam of the present invention, can be produced using conventional method, such as adopted and given birth to the following method
Produce：By the mixing of polyether polyol and silicone oil, PC9, stannous iso caprylate and CNT, stir, be subsequently adding foaming agent,
Mix homogeneously, obtains polyurethane and expects performed polymer in vain；Polyurethane is expected in vain performed polymer and isocyanates mixing and stirring, is foamed
To polyurethane foam.Wherein, blowing temperature is room temperature (15～25 DEG C), will in vain expect performed polymer and isocyanates mixed foaming
Afterwards, 5～10 minutes, foam was curable, surface tack free.
The high intensity semi-hard polyurethane foam of the present invention, can be applicable to Postural immobilization during radiotherapy, with general
The fixation of polyurethane foam is complete, making is simple, structure very firm, low cost and other advantages.With traditional half hard-foam polyurethane phase
Than density is less, and intensity is higher, for the preparation that radiotherapy position positions foam pad, can improve the service life of locating pad.
Radiotherapy localization foam pad of the present invention, is made using high intensity semi-hard polyurethane foam of the present invention, its system
Preparation Method is as follows：
A, foaming agent, CNT, catalyst, three (dimethylaminopropyl) amine, silicone oil are mixed with polyether polyol, obtained
White material；
B, the molding bag of radiotherapy localization pad is laid in molding masterplate, isocyanates are mixed with white material, pour radiotherapy into
In the molding bag of locating pad；
C, fixation postures personnel are needed to lie low on molding bag；
Material in d, molding bag starts foaming, fills the space between human body and molding masterplate, 5～10 minutes solidify afterwards
Shaping, obtains radiotherapy localization foam pad.
The specific embodiment of the present invention is further described with reference to embodiment, not therefore by present invention limit
System is among described scope of embodiments.
Embodiment 1
Weigh the silicone oil that 10g polyether polyol is added thereto to 150ul, the PC9 of 6ul, the stannous iso caprylate of 100ul,
The CNT of 0.05g, by thing high-speed stirred mix homogeneously mixed above, adds the foaming agent of 2.8ml, is uniformly mixed.
The polyphenyl polymethylene polyisocyanates (PAPI) for adding 12g are sufficiently stirred for, and foam the type semi-hard polyurethane bubble that strengthened
Foam.
Mechanics Performance Testing, using compressive strength tester, test compression intensity, by foam 10mm*10mm* is cut into
The standard pattern of 10mm, is positioned on tester, determines compressive strength.Its result is shown in Fig. 1 and Biao 2.
Embodiment 2～4
According to the method for embodiment 1, change the content of each component, foam the type semi-hard polyurethane foam that strengthened.Its
In, the consumption of each raw material used is shown in Table 1, and compressive strength is shown in Table 2.
Table 1
Comparative example 1
The silicone oil that 10g polyethers is added thereto to 150ul is weighed, the PC9 of 6ul, the stannous iso caprylate of 100ul adds 2.8ml
Foaming agent, be uniformly mixed.The polyphenyl polymethylene polyisocyanates for adding 12g are sufficiently stirred for, and foaming obtains common
Foam.
Foam is cut into into the standard pattern of 10mm*10mm*10mm, Mechanics Performance Testing is carried out, test compression intensity, its
As a result Fig. 2 and Biao 2 is seen.
Table 2
| Embodiment or comparative example are numbered | Density (kg/m3) | Compressive strength (kPa) |
| Embodiment 1 | 35 | 146.1 |
| Embodiment 2 | 33 | 140 |
| Embodiment 3 | 32 | 139 |
| Embodiment 4 | 30 | 130 |
| Comparative example 1 | 35 | 54.8 |
Claims (8)
1. high intensity semi-hard polyurethane foam, it is characterised in that：By the component of following weight portion, it is prepared from by foaming：
Wherein, the catalyst is stannous iso caprylate or dibutyl tin laurate.
2. high intensity semi-hard polyurethane foam according to claim 1, it is characterised in that：The hydroxyl of the polyether polyol
It is worth for 400～500, preferably the hydroxyl value of the polyether polyol is 430.
3. high intensity semi-hard polyurethane foam according to claim 1, it is characterised in that：The isocyanates are many benzene
At least one in Quito methylene polyisocyanates, methyl diphenylene diisocyanate.
4. high intensity semi-hard polyurethane foam according to claim 1, it is characterised in that：The catalyst is isooctyl acid
Stannous.
5. high intensity semi-hard polyurethane foam according to claim 1, it is characterised in that：The high intensity semi-rigid is gathered
The density of urethane foam is 30～35kg/m3, compressive strength is 130～150kPa.
6. the high intensity semi-hard polyurethane foam described in any one of Claims 1 to 5 in radiotherapy Postural immobilization should
With.
7. a kind of radiotherapy localization foam pad, it is characterised in that：Using the high intensity semi-rigid described in any one of Claims 1 to 5
Polyurethane foam is made.
8. the preparation method of the radiotherapy localization foam pad described in claim 7, it is characterised in that its step is as follows：
A, foaming agent, CNT, catalyst, three (dimethylaminopropyl) amine, silicone oil are mixed with polyether polyol, obtain white
Material；
B, the molding bag of radiotherapy localization pad is laid in molding masterplate, isocyanates are mixed with white material, pour radiotherapy localization into
In the molding bag of pad；
C, fixation postures personnel are needed to lie low on molding bag；
Material in d, molding bag starts foaming, fills the space between human body and molding masterplate, 5～10 minutes solidify afterwards into
Shape, obtains radiotherapy localization foam pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913971.4A CN106632960A (en) | 2016-10-20 | 2016-10-20 | High-strength semi-rigid polyurethane foam and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913971.4A CN106632960A (en) | 2016-10-20 | 2016-10-20 | High-strength semi-rigid polyurethane foam and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106632960A true CN106632960A (en) | 2017-05-10 |
Family
ID=58856262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610913971.4A Pending CN106632960A (en) | 2016-10-20 | 2016-10-20 | High-strength semi-rigid polyurethane foam and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530875A (en) * | 2018-04-19 | 2018-09-14 | 西安华悦科技发展有限公司 | A kind of polyurethane foam material and preparation method thereof for tumor radiotherapy human body foaming locating pad |
| CN109438650A (en) * | 2018-10-16 | 2019-03-08 | 合肥工业大学 | A kind of high electromagnet shield effect material of high-strength light and preparation method thereof |
| CN110204675A (en) * | 2019-05-05 | 2019-09-06 | 北京航天试验技术研究所 | A method of for making the composition and production locating pad of locating pad |
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| CN102066472A (en) * | 2008-06-20 | 2011-05-18 | 拜尔材料科学有限公司 | Low density semi-rigid flame retardant foams |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108530875A (en) * | 2018-04-19 | 2018-09-14 | 西安华悦科技发展有限公司 | A kind of polyurethane foam material and preparation method thereof for tumor radiotherapy human body foaming locating pad |
| CN109438650A (en) * | 2018-10-16 | 2019-03-08 | 合肥工业大学 | A kind of high electromagnet shield effect material of high-strength light and preparation method thereof |
| CN109438650B (en) * | 2018-10-16 | 2021-04-30 | 合肥工业大学 | Light high-strength high-electromagnetic-shielding-efficiency material and preparation method thereof |
| CN110204675A (en) * | 2019-05-05 | 2019-09-06 | 北京航天试验技术研究所 | A method of for making the composition and production locating pad of locating pad |
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Application publication date: 20170510 |