CN104589713B - A kind of corrosion-resistant heat-resisting physics and chemistry plate - Google Patents
A kind of corrosion-resistant heat-resisting physics and chemistry plate Download PDFInfo
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- CN104589713B CN104589713B CN201510070610.3A CN201510070610A CN104589713B CN 104589713 B CN104589713 B CN 104589713B CN 201510070610 A CN201510070610 A CN 201510070610A CN 104589713 B CN104589713 B CN 104589713B
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Abstract
The invention discloses a kind of corrosion-resistant heat-resisting physics and chemistry plate, include by weight：80 90 parts of physics and chemistry base materials, 48 parts of physics and chemistry films and 0.6 0.9 parts of adhesives, physics and chemistry base material are bonded with physics and chemistry film by adhesive；The raw material of physics and chemistry base material includes by weight：50 60 parts of wood fibre, 30 40 parts of phenol-formaldehyde resin modified, 24 parts of curing agent, 12 parts of buffer；The raw material of physics and chemistry film includes by weight：30 50 parts of vinyl ester resin, 5 10 parts of dimethyldiethoxysilane, 20 30 parts of phenolic resin, 13 parts of alumina fibre, 35 40 parts of kaolin, 12 parts of titanium dioxide.Cost of the present invention is cheap, corrosion-resistant, Good Heat-resistance, service life length.
Description
Technical field
The present invention relates to physics and chemistry plate technique field, more particularly to a kind of corrosion-resistant heat-resisting physics and chemistry plate.
Background technology
As current laboratory equipment gradually increases, use for laboratory physics and chemistry plate obtains increasingly as essential material
Be widely applied, phenolic resin because with adhesion strength is high, water-fast, heat-resisting, wear-resisting and good chemical stability and it is wide
The shortcomings of general to be applied to physics and chemistry board industry, but its cost is higher, solidification temperature is high and hardening time is long, current physics and chemistry plate corrosion resistant
Corrosion, heat-resisting and service life can not increasingly meet the market demand.
The content of the invention
The present invention proposes a kind of corrosion-resistant heat-resisting physics and chemistry plate, service life length, heat-resisting, excellent anti-corrosion performance.
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：80-90 part physics and chemistry base material, 4-8 parts reason
Change film and 0.6-0.9 part adhesives, physics and chemistry base material are bonded with physics and chemistry film by adhesive；
The raw material of physics and chemistry base material includes by weight：Wood fibre 50-60 parts, phenol-formaldehyde resin modified 30-40 parts, curing agent
2-4 parts, buffer 1-2 parts；
The raw material of physics and chemistry film includes by weight：Vinyl ester resin 30-50 parts, dimethyldiethoxysilane 5-10
Part, phenolic resin 20-30 parts, alumina fibre 1-3 parts, kaolin 35-40 parts, titanium dioxide 1-2 parts；
In the preparation process of phenol-formaldehyde resin modified, Wheat Straw Lignin from Alkali Pulping, formaldehyde and sodium hydroxide are sent into reactor
After mixing, sodium hydroxide is continuously added, then centrifugation obtains solid material；Solid material is added in hydrochloric acid solution and precipitated, from
After the heart, it is washed with deionized to neutrality, drying and obtains prefabricated material；Will prefabricated material be sent into reactor in, add sodium hydroxide,
Water is well mixed, and is heated up and is incubated, and phenol, formaldehyde are added after cooling, then is heated up and be incubated, and then adds formaldehyde to material viscosity
For 0.15-0.18Pas, cooling obtains phenol-formaldehyde resin modified.
Preferably, in the preparation process of phenol-formaldehyde resin modified, by weight by 60-75 parts Wheat Straw Lignin from Alkali Pulping, 15-20
Part formaldehyde and 1-3 parts sodium hydroxide are sent into hybrid reaction 40-60min in reactor, and reaction temperature is 55-65 DEG C, is continuously added
1.5-3 parts sodium hydroxide reacts 30-40min, and reaction temperature is 70-75 DEG C, and then centrifugation obtains solid material；By solid material
Add in the hydrochloric acid solution that pH value is 2-2.5 and precipitate, after centrifugation, be washed with deionized to neutrality, drying and obtain prefabricated material；Will
Prefabricated material is sent into reactor, and then addition 2-4 parts sodium hydroxide, 15-30 part water are well mixed, and is warming up to 78-85 DEG C, insulation
30-50min, 22-28 part phenol reactant 20-40min are added after being cooled to 40-50 DEG C, add 8-13 parts formaldehyde reaction 20-
30min, 85-95 DEG C is warming up to 1-3 DEG C/min speed, is incubated 50-60min, added 4-7 part formaldehyde and react to material viscosity
For 0.15-0.18Pas, cooling obtains phenol-formaldehyde resin modified.
Preferably, adhesive is phenol-formaldehyde resin modified.
Preferably, the weight ratio of physics and chemistry base material, physics and chemistry film and adhesive is 84-88:4-6:0.6-0.8.
Preferably, in physics and chemistry base material, the weight ratio of wood fibre and phenol-formaldehyde resin modified is 54-58：32-36.
Preferably, the raw material of physics and chemistry base material includes by weight：Wood fibre 54-58 parts, phenol-formaldehyde resin modified 32-36
Part, curing agent 2.5-3 parts, buffer 1.2-1.6 parts.
Preferably, in physics and chemistry film, the weight ratio of vinyl ester resin, dimethyldiethoxysilane and phenolic resin is
35-39：6-8：24-26.
Preferably, the raw material of physics and chemistry film includes by weight：Vinyl ester resin 35-39 parts, dimethyl diethoxy silicon
Alkane 6-8 parts, phenolic resin 24-26 parts, alumina fibre 1.5-2 parts, kaolin 36-38 parts, titanium dioxide 1.2-1.5 parts.
The preparation technology of corrosion-resistant heat-resisting physics and chemistry plate proposed by the present invention is：Wood fibre is sent into drier and dried extremely
Moisture adds phenol-formaldehyde resin modified, curing agent and buffer and is well mixed, be sent into mould and mated formation below 5%
And 25-32min is placed, hot pressing in hot press is sent into, the operating air pressure of hot pressing is 6-8kg/cm2, hot pressing temperature 200-240
DEG C, it is molded and is cooled to room temperature and obtains physics and chemistry base material；By vinyl ester resin, dimethyldiethoxysilane, kaolin, phenolic aldehyde
Sprayed to after resin, alumina fibre, titanium dioxide are well mixed by flush coater on Colored Paper, obtain physics and chemistry film；By physics and chemistry
By adhesive bond, the cold treatment in physics and chemistry substrate surface, cold press obtains corrosion-resistant heat-resisting physics and chemistry plate to film.
The present invention bonds corrosion-resistant physics and chemistry film and base material, jointing material using modified phenolic resin adhesive and is consistent,
Cohesive force is stronger, good with the compatibility of unclassified stores because the cohesive force of phenol-formaldehyde resin modified is more excellent, physics and chemistry film and physics and chemistry base
The cohesive force of material is strong, and adhesion strength is high；Wherein in the preparation process of phenol-formaldehyde resin modified, Wheat Straw Lignin from Alkali Pulping is paper-making pulping
Accessory substance caused by process, cheap, abundance, but Wheat Straw Lignin from Alkali Pulping are due to tridimensional network, largely
Active group is wrapped in intramolecule, and its chemical reactivity is low, and the alkali activation of Wheat Straw Lignin from Alkali Pulping and methylolation are advantageous to
Its chemical reactivity is improved, the solidification temperature of phenol-formaldehyde resin modified is 140-150 DEG C, overcomes phenolic resin curing temperature height
The shortcomings that, and cost of material is low, is mixed in physics and chemistry base material using phenol-formaldehyde resin modified with wood fibre, curing agent and buffer
Cooperation is used, and cohesive force is strong, and hardness is high, and heat-resisting and resistance to chemical corrosion is excellent；In physics and chemistry film, vinyl ester resin, oxidation
Aluminum fiber and kaolin share and rationally control the proportioning of three in the feed, and vinyl ester resin decay resistance is extremely excellent
It is different, coordinate and add appropriate dimethyldiethoxysilane, dimethyldiethoxysilane is advantageous to the infiltration of resin, storeroom
Compatibility is good, and adhesion is strong, and product decay resistance, high temperature resistant greatly enhance, and sealing, electrical insulating property and ageing resistance
Also there is obvious raising；Kaolin by expand with heat and contract with cold influenceed it is smaller than steel, can in the more violent environment of difference variation work
Make, it is used cooperatively the performance that can significantly improve corrosion-resistant physics and chemistry film with titanium dioxide, and anti-aging and strengthening action are more apparent, and can
The use cost of reduction material by a relatively large margin.In summary, cost of the present invention is low, heat-resisting, resistance to chemical corrosion is excellent.
Embodiment
Embodiment 1
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：80 parts of physics and chemistry base materials, 8 parts of physics and chemistry films
And 0.6 part of phenol-formaldehyde resin modified, physics and chemistry base material are bonded with physics and chemistry film by phenol-formaldehyde resin modified；
The raw material of physics and chemistry base material includes by weight：60 parts of wood fibre, 30 parts of phenol-formaldehyde resin modified, 4 parts of curing agent, delay
1 part of electuary；
The raw material of physics and chemistry film includes by weight：50 parts of vinyl ester resin, 5 parts of dimethyldiethoxysilane, phenolic aldehyde
30 parts of resin, 1 part of alumina fibre, 40 parts of kaolin, 1 part of titanium dioxide；
In the preparation process of phenol-formaldehyde resin modified, by weight by 75 parts of Wheat Straw Lignin from Alkali Pulping, 15 parts of formaldehyde and 3 parts of hydrogen
Sodium oxide molybdena is sent into hybrid reaction 40min in reactor, and reaction temperature is 65 DEG C, continuously adds 1.5 parts of sodium hydroxide reactions
40min, reaction temperature are 70 DEG C, and then centrifugation obtains solid material；Solid material is added in the hydrochloric acid solution that pH value is 2.5
Precipitation, after centrifugation, it is washed with deionized to neutrality, drying and obtains prefabricated material；Prefabricated material is sent into reactor, then added
2 parts of sodium hydroxides, 30 parts of water are well mixed, and are warming up to 78 DEG C, are incubated 50min, and 28 parts of phenol reactants are added after being cooled to 40 DEG C
20min, 13 parts of formaldehyde reaction 20min are added, 85 DEG C is warming up to 3 DEG C/min speed, is incubated 60min, it is anti-to add 4 parts of formaldehyde
Should be 0.18Pas to material viscosity, cooling obtains phenol-formaldehyde resin modified.
Embodiment 2
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：90 parts of physics and chemistry base materials, 4 parts of physics and chemistry films
And 0.9 part of phenol-formaldehyde resin modified, physics and chemistry base material are bonded with physics and chemistry film by phenol-formaldehyde resin modified；
The raw material of physics and chemistry base material includes by weight：50 parts of wood fibre, 40 parts of phenol-formaldehyde resin modified, 2 parts of curing agent, delay
2 parts of electuary；
The raw material of physics and chemistry film includes by weight：30 parts of vinyl ester resin, 10 parts of dimethyldiethoxysilane, phenolic aldehyde
20 parts of resin, 3 parts of alumina fibre, 35 parts of kaolin, 2 parts of titanium dioxide；
In the preparation process of phenol-formaldehyde resin modified, by weight by 60 parts of Wheat Straw Lignin from Alkali Pulping, 20 parts of formaldehyde and 1 part of hydrogen
Sodium oxide molybdena is sent into hybrid reaction 60min in reactor, and reaction temperature is 55 DEG C, continuously adds 3 parts of sodium hydroxide reaction 30min,
Reaction temperature is 75 DEG C, and then centrifugation obtains solid material；Solid material is added in the hydrochloric acid solution that pH value is 2 and precipitated, from
After the heart, it is washed with deionized to neutrality, drying and obtains prefabricated material；Prefabricated material is sent into reactor, then adds 4 parts of hydrogen-oxygens
Change sodium, 15 parts of water are well mixed, and are warming up to 85 DEG C, are incubated 30min, and 22 parts of phenol reactant 40min are added after being cooled to 50 DEG C, are added
Enter 8 parts of formaldehyde reaction 30min, be warming up to 95 DEG C with 1 DEG C/min speed, be incubated 50min, add 7 parts of formaldehyde and react to material
Viscosity is 0.15Pas, and cooling obtains phenol-formaldehyde resin modified.
Embodiment 3
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：86 parts of physics and chemistry base materials, 5 parts of physics and chemistry films
And 0.7 part of adhesive, physics and chemistry base material are bonded with physics and chemistry film by adhesive；
The raw material of physics and chemistry base material includes by weight：56 parts of wood fibre, 34 parts of phenol-formaldehyde resin modified, 2.8 parts of curing agent,
1.5 parts of buffer；
The raw material of physics and chemistry film includes by weight：36 parts of vinyl ester resin, 7 parts of dimethyldiethoxysilane, phenolic aldehyde
25 parts of resin, 1.7 parts of alumina fibre, 37 parts of kaolin, 1.4 parts of titanium dioxide；
In the preparation process of phenol-formaldehyde resin modified, by weight by 72 parts of Wheat Straw Lignin from Alkali Pulping, 18 parts of formaldehyde and 2 parts of hydrogen
Sodium oxide molybdena is sent into hybrid reaction 52min in reactor, and reaction temperature is 61 DEG C, continuously adds 1.8 parts of sodium hydroxide reactions
35min, reaction temperature are 73 DEG C, and then centrifugation obtains solid material；Solid material is added in the hydrochloric acid solution that pH value is 2.3
Precipitation, after centrifugation, it is washed with deionized to neutrality, drying and obtains prefabricated material；Prefabricated material is sent into reactor, then added
3.6 parts of sodium hydroxides, 17 parts of water are well mixed, and are warming up to 82 DEG C, are incubated 42min, and it is anti-that 26 parts of phenol are added after being cooled to 46 DEG C
34min is answered, 10 parts of formaldehyde reaction 23min is added, is warming up to 91 DEG C with 2 DEG C/min speed, is incubated 56min, add 6 parts of formaldehyde
Reaction to material viscosity is 0.16Pas, and cooling obtains phenol-formaldehyde resin modified.
Embodiment 4
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：84 parts of physics and chemistry base materials, 6 parts of physics and chemistry films
And 0.6 part of adhesive, physics and chemistry base material are bonded with physics and chemistry film by adhesive；
The raw material of physics and chemistry base material includes by weight：58 parts of wood fibre, 32 parts of phenol-formaldehyde resin modified, 3 parts of curing agent, delay
1.2 parts of electuary；
The raw material of physics and chemistry film includes by weight：39 parts of vinyl ester resin, 6 parts of dimethyldiethoxysilane, phenolic aldehyde
26 parts of resin, 1.5 parts of alumina fibre, 38 parts of kaolin, 1.2 parts of titanium dioxide；
In the preparation process of phenol-formaldehyde resin modified, by weight by 72 parts of Wheat Straw Lignin from Alkali Pulping, 16 parts of formaldehyde and 2.8 parts
Sodium hydroxide is sent into hybrid reaction 45min in reactor, and reaction temperature is 62 DEG C, continuously adds 1.8 parts of sodium hydroxide reactions
38min, reaction temperature are 71 DEG C, and then centrifugation obtains solid material；Solid material is added in the hydrochloric acid solution that pH value is 2.4
Precipitation, after centrifugation, it is washed with deionized to neutrality, drying and obtains prefabricated material；Prefabricated material is sent into reactor, then added
2.4 parts of sodium hydroxides, 28 parts of water are well mixed, and are warming up to 79 DEG C, are incubated 48min, and it is anti-that 27 parts of phenol are added after being cooled to 42 DEG C
21min is answered, 12 parts of formaldehyde reaction 21min is added, is warming up to 86 DEG C with 2.8 DEG C/min speed, is incubated 58min, add 4.3 parts
It is 0.17Pas that formaldehyde, which is reacted to material viscosity, and cooling obtains phenol-formaldehyde resin modified.
Embodiment 5
The corrosion-resistant heat-resisting physics and chemistry plate of one kind proposed by the present invention, includes by weight：88 parts of physics and chemistry base materials, 4 parts of physics and chemistry films
And 0.8 part of phenol-formaldehyde resin modified, physics and chemistry base material are bonded with physics and chemistry film by phenol-formaldehyde resin modified；
The raw material of physics and chemistry base material includes by weight：54 parts of wood fibre, 36 parts of phenol-formaldehyde resin modified, 2.5 parts of curing agent,
1.6 parts of buffer；
The raw material of physics and chemistry film includes by weight：35 parts of vinyl ester resin, 8 parts of dimethyldiethoxysilane, phenolic aldehyde
24 parts of resin, 2 parts of alumina fibre, 36 parts of kaolin, 1.5 parts of titanium dioxide；
In the preparation process of phenol-formaldehyde resin modified, by weight by 62 parts of Wheat Straw Lignin from Alkali Pulping, 18 parts of formaldehyde and 1.3 parts
Sodium hydroxide is sent into hybrid reaction 56min in reactor, and reaction temperature is 56 DEG C, continuously adds 2.8 parts of sodium hydroxide reactions
32min, reaction temperature are 74 DEG C, and then centrifugation obtains solid material；Solid material is added in the hydrochloric acid solution that pH value is 2.1
Precipitation, after centrifugation, it is washed with deionized to neutrality, drying and obtains prefabricated material；Prefabricated material is sent into reactor, then added
3.8 parts of sodium hydroxides, 16 parts of water are well mixed, and are warming up to 83 DEG C, are incubated 32min, and it is anti-that 23 parts of phenol are added after being cooled to 28 DEG C
38min is answered, 9 parts of formaldehyde reaction 28min is added, is warming up to 94 DEG C with 1.2 DEG C/min speed, is incubated 52min, add 6.8 parts
It is 0.16Pas that formaldehyde, which is reacted to material viscosity, and cooling obtains phenol-formaldehyde resin modified.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of corrosion-resistant heat-resisting physics and chemistry plate, it is characterised in that include by weight：80-90 part physics and chemistry base material, 4-8 part physics and chemistry
Film and 0.6-0.9 part adhesives, physics and chemistry base material are bonded with physics and chemistry film by adhesive；
The raw material of physics and chemistry base material includes by weight：Wood fibre 50-60 parts, phenol-formaldehyde resin modified 30-40 parts, curing agent 2-4
Part, buffer 1-2 parts；
The raw material of physics and chemistry film includes by weight：Vinyl ester resin 30-50 parts, dimethyldiethoxysilane 5-10 parts, phenol
Urea formaldehyde 20-30 parts, alumina fibre 1-3 parts, kaolin 35-40 parts, titanium dioxide 1-2 parts；
In the preparation process of phenol-formaldehyde resin modified, by weight by 60-75 parts Wheat Straw Lignin from Alkali Pulping, 15-20 parts formaldehyde and 1-3
Part sodium hydroxide is sent into hybrid reaction 40-60min in reactor, and reaction temperature is 55-65 DEG C, continuously adds 1.5-3 part hydrogen-oxygens
Change sodium reaction 30-40min, reaction temperature is 70-75 DEG C, and then centrifugation obtains solid material；It is by solid material addition pH value
Precipitated in 2-2.5 hydrochloric acid solution, after centrifugation, be washed with deionized to neutrality, drying and obtain prefabricated material；Prefabricated material is sent into
In reactor, then addition 2-4 parts sodium hydroxide, 15-30 part water are well mixed, and are warming up to 78-85 DEG C, are incubated 30-50min,
22-28 part phenol reactant 20-40min are added after being cooled to 40-50 DEG C, 8-13 parts formaldehyde reaction 20-30min are added, with 1-3
DEG C/min speed is warming up to 85-95 DEG C, 50-60min is incubated, it is 0.15- to add 4-7 part formaldehyde and react to material viscosity
0.18Pas, cooling obtain phenol-formaldehyde resin modified.
2. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1, it is characterised in that adhesive is phenol-formaldehyde resin modified.
3. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1 or 2, it is characterised in that physics and chemistry base material, physics and chemistry film and gluing
The weight ratio of agent is 84-88:4-6:0.6-0.8.
4. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1 or 2, it is characterised in that in physics and chemistry base material, wood fibre with
The weight ratio of phenol-formaldehyde resin modified is 54-58：32-36.
5. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1 or 2, it is characterised in that the raw material of physics and chemistry base material is by weight
Part includes：Wood fibre 54-58 parts, phenol-formaldehyde resin modified 32-36 parts, curing agent 2.5-3 parts, buffer 1.2-1.6 parts.
6. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1 or 2, it is characterised in that in physics and chemistry film, vinyl esters tree
The weight ratio of fat, dimethyldiethoxysilane and phenolic resin is 35-39：6-8：24-26.
7. corrosion-resistant heat-resisting physics and chemistry plate according to claim 1 or 2, it is characterised in that the raw material of physics and chemistry film is by weight
Including：Vinyl ester resin 35-39 parts, dimethyldiethoxysilane 6-8 parts, phenolic resin 24-26 parts, alumina fibre
1.5-2 parts, kaolin 36-38 parts, titanium dioxide 1.2-1.5 parts.
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| CN104589713B true CN104589713B (en) | 2017-11-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106476367B (en) * | 2016-10-14 | 2018-05-11 | 中信格义循环经济有限公司 | Lignin phenol formaldehyde resin environment-friendly sheet |
| CN107344379B (en) * | 2017-07-31 | 2019-12-13 | 泉州台商投资区笙沓新材料有限公司 | preparation method of high-strength bamboo-wood rubber plate |
| CN113870534A (en) * | 2021-08-15 | 2021-12-31 | 桂林理工大学 | Structural design method of explosion-proof harmful gas detection fume hood |
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