CN1916071A - Modified thermoset type quick solidified phenol-formaldehyde resin - Google Patents
Modified thermoset type quick solidified phenol-formaldehyde resin Download PDFInfo
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- CN1916071A CN1916071A CN 200610069900 CN200610069900A CN1916071A CN 1916071 A CN1916071 A CN 1916071A CN 200610069900 CN200610069900 CN 200610069900 CN 200610069900 A CN200610069900 A CN 200610069900A CN 1916071 A CN1916071 A CN 1916071A
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- phenol
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- formaldehyde resin
- urotropine
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Abstract
This invention relates to a rapid-curing thermosetting phenol formaldehyde resin, whose raw materials comprise: phenol formaldehyde resin solution 90.9-99.5 wt. % and urotropine 0.5-9.1 wt. %. The resin can be dried at a low temperature for producing glass fiber pre-soaking cloth. The pre-soaking cloth is resistant to damp and cohesion, and easy for usage. The pre-soaking cloth can be used to produce fishing rods, and the process has shorter curing time (from 3 h to 1-2.5 h), thus saving energy and using few molds. Since the addition of urotropine can reduce the water leakage, it can be directly increased to the drying temperature without a low temperature transition to obtain the pre-soaking cloth without bubbles or gel flow, or surface pores.
Description
Technical field
The present invention relates to organic chemistry filed, specifically a kind of modified thermoset type quick solidified phenol-formaldehyde resin.
Background technology
We know that thermoset phenolic resin is to produce phenolic fiberglass reinforced plastics fishing pole one of important source material of glass preimpregnation cloth.
For many years, fishing gear industry production phenolic fiberglass reinforced plastics fishing pole uses common thermoset phenolic resin always.In the production process of fishing pole baking typing, exist the production cycle long, the common heat curing-type phenolic resin curing cycle was generally 3 hours, and the mould input amount is big, and the shortcoming that energy consumption is too high is seriously restricting the production efficiency of fishing pole and the reduction of cost.So the insider appeals to produce early fast type resol admittedly.
Common thermoset phenolic resin, the difference according to its polycondensation propelling degree can be divided into three different stepss.
The A b stage resin b: can be dissolved in ethanol, acetone, and the aqueous solution of alkali, it is thermoplastic, claims resol again.
The B b stage resin b: can partly or wholly be dissolved in ethanol or the acetone, it also is called bakelite B.
C b stage resin b: be insoluble infusible solid matter, do not contain or contain seldom the low-molecular material that can be extracted by acetone, can be described as bakelite C.
The resol of above-mentioned three phases is respectively the product of different production process (stage):
Novolak resin production process---A b stage resin b, A rank phenol resin solution (solid content: 45%～～75%) be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination; Preimpregnation cloth toasts dry production process---the B b stage resin b; Fishing pole baking typing production process---C b stage resin b.
When being heated, A rank resol changes the B b stage resin b gradually into.At this moment, the molecular structure complexity that becomes, molecular chain produces side chain, and phenol is being brought into play its potential trifunctional effect fully; Continue heating, will become the C b stage resin b, molecular weight is very big, has complicated build reticulated structure, reaches sclerosis fully, loses its thermoplasticity and meltability.
Summary of the invention
The objective of the invention is the quick thermoset phenolic resin that shortens set time, save production cost in order to overcome the above-mentioned technical deficiency that existing thermoset phenolic resin exists, to provide a kind of.
The technical scheme that the present invention solves the problems of the technologies described above employing is: modified thermoset type quick solidified phenol-formaldehyde resin, it is characterized in that: comprise that A rank phenol resin solution, urotropine are raw material, stir under the normal temperature, raw material is formed by weight percentage: phenol resin solution 90.9%～99.5%, urotropine 0.5%～9.1%.
Advantageous effect of the present invention is: when 1, producing glass preimpregnation cloth with prepared modified thermoset type quick solidified phenol-formaldehyde resin, can toast drying under lower temperature, have energy-saving effect.2, the modified phenolic glass preimpregnation cloth of making, summer, anti-moisture regain and adhesion were easy to use.3, modified phenolic glass preimpregnation cloth is rolled into the fishing pole, and baking typing required time shortens, and shortened to 1～2.5 hour by original 3 hours set time, saves a large amount of energy consumptions, and production efficiency improves, and can reduce the mould input amount, has extremely considerable economic.4, because the adding of solidifying agent urotropine reduces aquifer yield, can take the low temperature transition, can directly rise to baking setting temperature (for example: 130～145 ℃), and can not cause BOPP band (film) bubbling even gummosis, and surperficial anophthalmia atresia, state is very good.5, the mechanical property of finished product fishing pole and angling property are excellent more.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment one:
930 kilograms of A b stage resin bs and 70 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
But when the present invention has only control proper curing agents urotropine add-on, could make the modified thermoset type quick solidified phenol-formaldehyde resin and the glass preimpregnation cloth thereof that obtain have rational storage period.Simultaneously, reach and both can shorten fishing pole baking shaping time, cut down the consumption of energy significantly, can guarantee that again the fishing pole has good mechanical property and angling property.
Embodiment two:
909 kilograms of A b stage resin bs and 91 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
Embodiment three:
995 kilograms of A b stage resin bs and 5 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
Embodiment four:
950 kilograms of A b stage resin bs and 50 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
Embodiment five:
990 kilograms of A b stage resin bs and 10 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
Embodiment six:
980 kilograms of A b stage resin bs and 20 kilograms of solidifying agent urotropines mixing were stirred 20～30 minutes at normal temperatures, miscible even, promptly obtain modified thermoset type quick solidified phenol-formaldehyde resin.Urotropine claims urotropin or six (Asia) methyl tetramines, H-promotor, Hai Kesha again.A b stage resin b in the present embodiment, be the A rank phenol resin solution (solid content: 45%～～75%) in the background technology, be the heat curing-type A rank resol that alkali (ammoniacal liquor) catalysis of phenol and formaldehyde condensation form, solvent is methyl alcohol, ethanol or acetone, or its complex solvent combination.
Claims (1)
1 one kinds of modified thermoset type quick solidified phenol-formaldehyde resins, it is characterized in that: comprise that A rank phenol resin solution, urotropine are raw material, stir under the normal temperature, raw material is formed by weight percentage: phenol resin solution 90.9%～99.5%, urotropine 0.5%～9.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610069900 CN1916071A (en) | 2006-08-22 | 2006-08-22 | Modified thermoset type quick solidified phenol-formaldehyde resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610069900 CN1916071A (en) | 2006-08-22 | 2006-08-22 | Modified thermoset type quick solidified phenol-formaldehyde resin |
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| Publication Number | Publication Date |
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| CN1916071A true CN1916071A (en) | 2007-02-21 |
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| CN 200610069900 Pending CN1916071A (en) | 2006-08-22 | 2006-08-22 | Modified thermoset type quick solidified phenol-formaldehyde resin |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408531A (en) * | 2011-09-01 | 2012-04-11 | 山东圣泉化工股份有限公司 | Thermosetting phenolic resin and preparation method thereof |
| CN102516481A (en) * | 2011-11-25 | 2012-06-27 | 山东圣泉化工股份有限公司 | Method for preparing sand-coated phenolic resin |
-
2006
- 2006-08-22 CN CN 200610069900 patent/CN1916071A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408531A (en) * | 2011-09-01 | 2012-04-11 | 山东圣泉化工股份有限公司 | Thermosetting phenolic resin and preparation method thereof |
| CN102408531B (en) * | 2011-09-01 | 2013-11-27 | 山东圣泉化工股份有限公司 | Thermosetting phenolic resin and preparation method thereof |
| CN102516481A (en) * | 2011-11-25 | 2012-06-27 | 山东圣泉化工股份有限公司 | Method for preparing sand-coated phenolic resin |
| CN102516481B (en) * | 2011-11-25 | 2014-01-08 | 山东圣泉化工股份有限公司 | Method for preparing sand-coated phenolic resin |
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Application publication date: 20070221 |