CN103374110A - Preparation method of foaming phenolic resin - Google Patents
Preparation method of foaming phenolic resin Download PDFInfo
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- CN103374110A CN103374110A CN 201210106246 CN201210106246A CN103374110A CN 103374110 A CN103374110 A CN 103374110A CN 201210106246 CN201210106246 CN 201210106246 CN 201210106246 A CN201210106246 A CN 201210106246A CN 103374110 A CN103374110 A CN 103374110A
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- phenolic
- insulation board
- foaming
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- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to technical field of building materials and in particular relates to a material for manufacturing a modified phenolic aldehyde fireproof thermal-insulation board. The material for manufacturing the modified phenolic aldehyde fireproof thermal-insulation board comprises the following components in parts by weight: 100 parts of foaming phenolic resins, 2-20 parts of polyurethane prepolymer, 2-4 parts of surfactant, 5-7 parts of foaming agent and 8-10 parts of curing agent. The preparation method of the foaming phenolic resin disclosed by the invention can be used for improving percentage of close area of the phenolic aldehyde fireproof thermal-insulation board, lowering the water absorption, quickening the curing and forming reaction speed and improving the strength and toughness of the phenolic aldehyde fireproof thermal-insulation board. Meanwhile, the brittleness of the phenolic foams is lowered and the building exterior-wall (exterior-wall thermal-insulation system) needs are satisfied.
Description
Technical field
The present invention relates to building material technical field, relate in particular to a kind of material of making modified phenolic fireproof insulating plate.
Background technology
Because building energy consumption is higher, energy dissipation seriously is a kind of very general problem, so building energy conservation is direct, a cheap systems engineering alleviating energy scarcity.Present employed building thermal insulation material, such as extruded sheet, styrofoam etc. because there is potential safety hazard in inflammable, the shortcoming such as toxic smoke is large, water absorbing properties is poor.Phenol formaldehyde foam can be good at being applied in the exterior wall heat-preserving system, so just day by day is subject to the people's attention owing to have that raw material is easy to get, cheap, the characteristics such as product performance are good, difficult fire, certainly put out, low smog, water-proof breathable properties are good.But a shortcoming of prior art phenol formaldehyde foam be crisp, tensile strength is not high.Resol is carried out modification, and the fragility that overcomes phenol formaldehyde foam has become an important problem.
Summary of the invention
Technical problem to be solved by this invention is the defective that exists for prior art, provides a kind of and improve tensile strength, overcomes the material of the manufacturing modified phenolic fireproof insulating plate of fragility.The technical scheme that the present invention solves its technical problem employing is: a kind of material of making modified phenolic fireproof insulating plate, its component and parts by weight are: can send out resol 100, base polyurethane prepolymer for use as 2～20, tensio-active agent 2～4, whipping agent 5～7, solidifying agent 8～10.Technical problem to be solved by this invention also can further be solved by following technical solution: tensio-active agent is silicone oil H230 or DC-193; Whipping agent is Skellysolve A or carbonic acid gas; Solidifying agent is xylene monosulfonic acid, tosic acid, phosphoric acid or sulfuric acid.All components among the present invention all at home market make after buying or buying.The preparation method of the base polyurethane prepolymer for use as among the present invention is as follows: add in the 250 dry mL three-necked bottles by the mixture with 1mol polyethers and 1-3mol vulcabond, start stirring, be warmed up to rapidly 80 ℃, and maintain the temperature at 80～90 ℃, reaction 3～4 h.The preparation method of phenolic resin sent out among the present invention is as follows: by 1mol phenol and the adding of 1.7-2.0mol formaldehyde are equipped with agitator, in the there-necked flask of thermometer and reflux condensing tube, open reflux, and begin to stir, when question response liquid is 40 ℃, the NaOH aqueous solution with 40% is regulated between pH value to 8～9, heats up and be controlled to react 90 min between 80 ℃～90 ℃; With acid for adjusting pH value to 6.8～7.2, be between 1.5700～1.5800 at 70 ℃ of lower decompression dehydrations to its refractive index then; Be cooled to room temperature.Polyurethane modified phenol formaldehyde resin reaction mechanism among the present invention is: 1. the hydroxyl of the polyol in isocyanate groups and the component carries out crosslinked or chain extending reaction; 2. the methylol in isocyanate groups and the Ke Fa resol carries out crosslinking reaction.The result of two kinds of reactions has introduced the snappiness segment in phenolic aldehyde stiff molecule structure, fundamentally changed the stiff molecule structure that can send out resol, thereby has improved the toughness of phenol formaldehyde foam (goods), has reduced fragility; Introduce simultaneously the characteristic of urethane, as improved rate of closed hole, reduced water-absorbent, accelerated the curing molding speed of response, also improved intensity and the toughness of the phenolic fireproof insulating plate of making of the present invention.Ultimate title of the present invention is called " phenol formaldehyde foam " in the art.Each component of the present invention effect in the present invention is respectively: can send out resol crosslinking reaction can occur at a certain temperature, form the needed crosslinking structure of phenol formaldehyde foam; Tensio-active agent plays a part to send out resol in foaming system and whipping agent mixes; Whipping agent can make phenol formaldehyde foam produce microvoid structure; Solidifying agent still can not sent out the crosslinked initiator of resol, and can also promote because of the heat release of initiation reaction the whipping agent foaming.Preparation method of the present invention is uniform stirring.The present invention is owing to adopt technique scheme, improved the rate of closed hole of phenolic fireproof insulating plate, reduced water-absorbent, accelerated the curing molding speed of response, intensity and the toughness of phenolic fireproof insulating plate have also been improved, reduce simultaneously the fragility of phenol formaldehyde foam, satisfied the needs of skin construction (exterior wall heat-preserving system).
Embodiment
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Modified phenolic resins | 100Kg | 100Kg | 100Kg | 100Kg | 100Kg |
| Base polyurethane prepolymer for use as | 20 Kg | 2 Kg | 11 Kg | ?7 Kg | 16 Kg |
| Tensio-active agent | 2 Kg | 4 Kg | 3 Kg | 2.5 Kg | 3.5 Kg |
| Whipping agent | 7 Kg | 5 Kg | 6 Kg | 6.5 Kg | 5.5 Kg |
| Solidifying agent | 10 Kg | 8 Kg | 9 Kg | 8.5 Kg | 9.5 Kg |
The phenolic foam board of employing manufacturing of the present invention has the performance index of following excellence:
| Test subject | Unit | Performance index |
| Apparent density | kg/m 3 | ≥35 |
| Thermal conductivity | W/(m·K) | 0.025～0.035 |
| Compressive strength | MPa | ≥0.12 |
| Perpendicular to plate face direction tensile strength | MPa | ≥0.12 |
| Water-intake rate | % | ≤7.5 |
| Dimensional stability | % | ≤1.5 |
| Burst size of methanal | mg/L | ≤1.0 |
| The combustionproperty rank | — | The B1 level |
Claims (1)
1. can send out the preparation method of resol: by 1mol phenol and the adding of 1.7-2.0mol formaldehyde are equipped with agitator, in the there-necked flask of thermometer and reflux condensing tube, open reflux, and begin to stir, when question response liquid is 40 ℃, the NaOH aqueous solution with 40% is regulated between pH value to 8～9, heats up and be controlled to react 90 min between 80 ℃～90 ℃; With acid for adjusting pH value to 6.8～7.2, be between 1.5700～1.5800 at 70 ℃ of lower decompression dehydrations to its refractive index then; Be cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210106246 CN103374110A (en) | 2012-04-12 | 2012-04-12 | Preparation method of foaming phenolic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210106246 CN103374110A (en) | 2012-04-12 | 2012-04-12 | Preparation method of foaming phenolic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103374110A true CN103374110A (en) | 2013-10-30 |
Family
ID=49459990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210106246 Pending CN103374110A (en) | 2012-04-12 | 2012-04-12 | Preparation method of foaming phenolic resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103374110A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923550A (en) * | 2014-04-28 | 2014-07-16 | 上海茂霖高分子科技股份有限公司 | High-resistance wear-resistant coating for semi-conductive rubber roller and preparation method thereof |
| CN104448189A (en) * | 2014-12-03 | 2015-03-25 | 山东海冠化工科技有限公司 | Phenol-formaldehyde-resin-modified rigid polyurethane foam and preparation method thereof |
| CN106243614A (en) * | 2016-08-01 | 2016-12-21 | 合肥广能新材料科技有限公司 | Modified phenolic foam insulation material and preparation method thereof |
| CN114381111A (en) * | 2021-11-30 | 2022-04-22 | 山东一诺威新材料有限公司 | Pentane type multicomponent high-flame-retardant polyurethane composite phenolic aldehyde continuous plate composite material and preparation method thereof |
-
2012
- 2012-04-12 CN CN 201210106246 patent/CN103374110A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923550A (en) * | 2014-04-28 | 2014-07-16 | 上海茂霖高分子科技股份有限公司 | High-resistance wear-resistant coating for semi-conductive rubber roller and preparation method thereof |
| CN104448189A (en) * | 2014-12-03 | 2015-03-25 | 山东海冠化工科技有限公司 | Phenol-formaldehyde-resin-modified rigid polyurethane foam and preparation method thereof |
| CN106243614A (en) * | 2016-08-01 | 2016-12-21 | 合肥广能新材料科技有限公司 | Modified phenolic foam insulation material and preparation method thereof |
| CN114381111A (en) * | 2021-11-30 | 2022-04-22 | 山东一诺威新材料有限公司 | Pentane type multicomponent high-flame-retardant polyurethane composite phenolic aldehyde continuous plate composite material and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |