CN104294701A - Phenolic resin solution for paper wet curtain and paper wet curtain - Google Patents
Phenolic resin solution for paper wet curtain and paper wet curtain Download PDFInfo
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- CN104294701A CN104294701A CN201410490177.4A CN201410490177A CN104294701A CN 104294701 A CN104294701 A CN 104294701A CN 201410490177 A CN201410490177 A CN 201410490177A CN 104294701 A CN104294701 A CN 104294701A
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Abstract
The invention discloses a phenolic resin solution for a paper wet curtain. The phenolic resin solution comprises the following components in parts by weight: 100 parts of phenolic resin, 0.5-5 parts of nano-crystal cellulose and 150-400 parts of water. The invention also discloses a preparation method and application of the phenolic resin solution, the paper wet curtain, a preparation method of the paper wet curtain, a wet curtain fan cooling system comprising the wet curtain, and a wet curtain air cooler comprising the wet curtain. Due to the phenolic resin solution disclosed by the invention, the paper wet curtain has the relatively high water absorptivity and compressive strength and the good air-purifying effect.
Description
Technical field
The present invention relates to a kind of liquid phenolic resin, the preparation method of described liquid phenolic resin and purposes, a kind of paper wet curtain, the preparation method of paper wet curtain and a kind of pad and fan cooling system and wet curtain air-cooler.
Background technology
Wet curtain, also known as cascade or water curtain, is the important component part of pad and fan cooling system.Pad and fan cooling system is made up of the curtain that wets, blower fan, water circulation system and control system.Wet curtain, blower fan are contained on the two sides gable in airtight room respectively, water circulation system makes wet curtain evenly drench, the ripple of the wet curtain in current edge is toward dirty, during blower fan exhausting, cause indoor negative pressure, force outdoor air to flow through porous, moistening wet curtain surface, cause moisture to evaporate and absorb a large amount of latent heat, thus reduce the temperature of air self.Therefore, when pad and fan cooling system runs, continuously the Cryogenic air after evaporative cooling is introduced room temperature lowering.Pad and fan cooling system has that cooling-down effect is obvious, equipment is simple, easy for installation, cost is low and cost performance advantages of higher, is mainly used at present in plastic greenhouse, livestock and poultry farm, spinning and weaving workshop and other production needing decreasing temperature and increasing humidity or Work places.
Wet curtain is also applied in wet curtain air-cooler, wet curtain air-cooler is usually by casing be positioned at the wet curtain of casing, water circulation system, centrifugal blower and electric elements and form, centrifugal blower runs and makes to produce negative pressure in casing, machine outer air flows through the moistening wet curtain surface of porous from the air inlet of casing, water evaporation on wet curtain absorbs heat, thus reduce through the air themperature that shell air outlet flows out, humidity increases.
According to the difference of material, wet curtain is generally divided into paper wet curtain and the wet curtain of macromolecular material (such as polypropylene).Wherein paper wet curtain is cheap because of its environmental protection, and range of application is wider.Paper wet curtain is binded by multi-disc corrugated paper interfolded to be made, and the waveform groove incline direction of its adjacent two panels corrugated paper is contrary, forms a series of interlaced passage, thus enhances the heat and mass area of wet curtain surface moisture film and air.In existing wet curtain, corrugated paper is usually through liquid phenolic resin impregnation process, and after utilizing phenolic resin curing, deflection is high, the feature that resistance to water is strong, improves the serviceability of wet curtain.However, the water absorption rate of existing wet curtain and compression strength still unsatisfactory.
In addition, consider and be convenient to production and processing and practical application needs, the wave height of the corrugated paper of existing wet curtain is 5mm, 7mm or 9mm, and wave space is 5mm or 7mm, the specification of two kinds of wherein the most frequently used corrugated paper is wave height 9mm, wave space 5mm, and wave height 9mm, wave space 7mm.The gap formed between adjacent every two panels corrugated paper of thus wet curtain is comparatively large, and wet curtain density is lower, generally can only play the effect of cooling humidification, and very little to the catharsis of air.
Therefore, need a kind ofly can improve the water absorption rate of wet curtain and the wet curtain liquid phenolic resin of compression strength, and there is the wet curtain compared with high water absorbing capacity and compression strength, need a kind of wet curtain with good air purification effect further.
Summary of the invention
An object of the present invention is to provide a kind of wet curtain liquid phenolic resin.
Two of object of the present invention is the preparation method providing described wet curtain liquid phenolic resin.
Three of object of the present invention is the purposes providing described wet curtain liquid phenolic resin for the preparation of wet curtain.
Four of object of the present invention is to provide a kind of paper wet curtain.
Five of object of the present invention is the preparation method providing a kind of paper wet curtain.
Six of object of the present invention is that providing a kind of comprises the pad and fan cooling system of described paper wet curtain or wet curtain air-cooler.
The object of the invention is to be achieved through the following technical solutions.
The invention provides a kind of wet curtain liquid phenolic resin, with parts by weight, comprise following component:
100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part and water 150-400 part.
Preferably, described wet curtain liquid phenolic resin, with parts by weight, comprises following component:
100 parts, phenolic resins, nanocrystal cellulose 0.5-3 part and water 200-300 part.
Described phenolic resins is preferably thermosetting phenolic resin, and described thermosetting phenolic resin can adopt model to be the mixture of any one or several of 2130,214,2127,2124,401 or 407.
Preferably, the diameter of described nanocrystal cellulose is 8-100nm, and length is 100-500nm.
Described nanocrystal cellulose can select commercially available prod, or is prepared according to the method preparing nanocrystal cellulose well known in the art.
Preferably, described wet curtain phenolic resins also comprises one or more in wet strength agent, emulsifying agent or preservative agent.Described wet strength agent, emulsifying agent, preservative agent can be kind and the consumption of this area routine employing.
Preferably, described wet curtain phenolic resins, with parts by weight, also comprises following component:
Wet strength agent 0.1-0.6 part, emulsifying agent 0.5-1, preservative agent 0.5-1 part.
The present invention also provides the preparation method of described liquid phenolic resin, comprising:
(1) with parts by weight, 100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part and water 150-400 part is got;
(2) described phenolic resins is dissolved in a part of water and obtains phenolic resin aqueous solution; Described nanocrystal cellulose is mixed with remainder water, obtains described nanocrystal cellulose colloidal solution through high-pressure homogeneous process;
(3) described phenolic resin aqueous solution is mixed with described nanocrystal cellulose colloidal solution, obtain described liquid phenolic resin.
When also comprising one or more in wet strength agent, emulsifying agent or preservative agent in described liquid phenolic resin, the preparation method of described liquid phenolic resin comprises:
(1) with parts by weight, 100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part, water 150-400 part is got, and one or more in described wet strength agent, emulsifying agent or preservative agent;
(2) by one or more in described wet strength agent, emulsifying agent or preservative agent, and phenolic resins is dissolved in a part of water and obtains phenolic resins mixed solution; Described nanocrystal cellulose is mixed with remainder water, obtains described nanocrystal cellulose colloidal solution through high-pressure homogeneous process;
(3) described phenolic resins mixed solution is mixed with described nanocrystal cellulose colloidal solution, obtain described liquid phenolic resin.
Preferably, in described nanocrystal cellulose colloidal solution, the concentration of nanocrystal cellulose is 1-5wt%.Inventor finds, when adopting described concentration, the good fluidity of nanocrystal cellulose colloidal solution, is more conducive to nanocrystal cellulose and is uniformly dispersed in phenolic resins.
Preferably, in step (1), with parts by weight, get 100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part, water 150-400 part, wet strength agent 0.1-0.6 part, emulsifying agent 0.5-1, preservative agent 0.5-1 part.
The present invention also provides described wet curtain liquid phenolic resin for the preparation of the purposes of wet curtain.
The present invention also provides a kind of paper wet curtain, and described paper wet curtain is stacked to cohere in the mode that ripple is staggered by multi-disc corrugated paper and forms, and the wave height of described corrugated paper is 1-4mm, and wave space is 1-4mm.
The ripple of described corrugated paper can be 60 ° × 30 ° staggered opposed or 45 ° × 45 ° staggered opposed.
Preferably, the wave height of described corrugated paper is 2.5-3.5mm, and wave space is 2.5-3.5mm.
Preferably, the wave height of described corrugated paper is equal with wave space.
Existing paper wet curtain is different, and paper wet curtain of the present invention reduces wave height and the wave space of corrugated paper, and wet curtain density improves.When the wave height of corrugated paper and wave space are in described scope, the compression strength of wet curtain significantly strengthens; Meanwhile, when area one timing of individual corrugated paper, the wave height of corrugated paper and wave space reduce, then the quantity of corrugated paper that the wet curtain of unit thickness comprises increases, thus increases water absorption rate; In addition, wet curtain density improves, and the gap between adjacent corrugations paper reduces, and is obviously reduced by the PM10 particle concentration of the air of this wet curtain, simultaneously the also decrease to some degree of PM2.5 particle concentration.Meanwhile, when the wave height of the corrugated paper of wet curtain and wave space are in described scope, production and processing still facilitates, and significantly can not increase processing cost.
Preferably, described paper wet curtain adopts liquid phenolic resin of the present invention to prepare.
The quantity forming the corrugated paper of described paper wet curtain can be determined according to actual needs.
The present invention also provides the preparation method of described paper wet curtain, comprising:
(1) flooded by body paper liquid phenolic resin of the present invention, dry, compacting waveform groove, obtains corrugated paper;
(2) by corrugated paper interfolded described in multi-disc, adjacent two panels corrugated paper adhesive coheres, and solidification, obtains described paper wet curtain.
Wherein, the time of step (1) described dipping is soaked into corrugated paper and is as the criterion.
Preferably, the wave height of step (1) described corrugated paper is 1-4mm, is preferably 2.5-3.5mm.
Preferably, the temperature of step (1) described drying is 70-80 DEG C, and drying time is 20-30min.
Preferably, the temperature of step (2) described solidification is 150-160 DEG C, and hardening time is 15-45min.
The present invention also provides a kind of pad and fan cooling system or wet curtain air-cooler, and it comprises paper wet curtain of the present invention.
In the present invention, the wave height of described corrugated paper refers to the vertical range between the crest of the monolithic corrugated paper of wet curtain and trough outer surface.The wave space of described corrugated paper refers to the horizontal range between adjacent two crests of monolithic corrugated paper or between adjacent two troughs.
Compared with prior art, in liquid phenolic resin of the present invention, add the nanocrystal cellulose of certain content, due to the abundant hydroxyl that nanocrystal cellulose molecular surface has, and there is huge specific area (can 400m be reached
2/ g), adopt the wet curtain that such liquid phenolic resin is obtained, water absorbing properties significantly improves; In addition, though nanocrystal cellulose particle is little, have stronger rigidity, its Young's modulus, up to more than 140Gpa, makes the compression strength of wet curtain significantly strengthen.
Inventor finds, the consumption of described nanocrystal cellulose is suitable in scope of the present invention.If the consumption of nanocrystal cellulose is very few, then effectively can not improve water absorption rate and the compression strength of wet curtain; If consumption is too much, then nanocrystal cellulose is easily reunited, and make wet curtain pressure dissipation uneven, compression strength declines on the contrary.
Detailed description of the invention
Below by way of specific embodiment, technical solution of the present invention and effect thereof are described further.Should be appreciated that following examples only for illustration of content of the present invention, be not limited to protection scope of the present invention.Apply simple change that design of the present invention carries out the present invention all in the scope of protection of present invention.
Phenolic resins in following comparative example and embodiment is purchased from Hong Fu anti-corrosion material Co., Ltd of Xinxiang City, and model is the thermosetting phenolic resin of 2130; Nanocrystal cellulose diameter is 40-50nm, and length is 200-300nm, purchased from Beijing nanocrystal cellulose Technology R & D Center.Other materials is commercially available prod.
Comparative example 1
100g phenolic resins and 250g water is even in stirrer for mixing, obtain phenolic resin aqueous solution.Body paper being immersed to soaking in described phenolic resin aqueous solution, taking out, dry 30min at 70 DEG C, by Corrugating Machine compacting wave height be 5mm, wave space is the waveform groove of 5mm, obtains corrugated paper.By multi-disc corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 150 DEG C, solidify 40min, obtains the conventional wet curtain D1 that thickness is about 10cm.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of PM10 and PM2.5, assesses the wet curtain ability of purifying air in the method test environment air recorded according to " GB18801-2008 air purifier " and in the air of wet curtain purification.
Embodiment 1
100g phenolic resins and 250g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Body paper being immersed to soaking in described phenolic resin aqueous solution, taking out, dry 30min at 70 DEG C, by Corrugating Machine compacting wave height be 2.5mm, wave space is the waveform groove of 2.5mm, obtains corrugated paper.By multi-disc corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 150 DEG C, solidify 40min, obtains the wet curtain A that thickness is about 10cm.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of PM10 and PM2.5, assesses the wet curtain ability of purifying air in the method test environment air recorded according to " GB18801-2008 air purifier " and in the air of wet curtain purification.
Embodiment 2
100g phenolic resins and 250g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 5wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 30min at 70 DEG C, by Corrugating Machine compacting wave height be 2.5mm, wave space is the waveform groove of 2.5mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 150 DEG C, solidify 40min, obtains the present invention that thickness is about 10cm and to wet curtain B.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
Embodiment 3
100g phenolic resins and 250g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 5wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 30min at 70 DEG C, by Corrugating Machine compacting wave height be 1mm, wave space is the waveform groove of 2mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 150 DEG C, solidify 40min, obtains the present invention that thickness is about 10cm and to wet curtain C.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
Embodiment 4
100g phenolic resins and 250g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 4wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 20min at 80 DEG C, by Corrugating Machine compacting wave height be 2mm, wave space is the waveform groove of 2.5mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 160 DEG C, solidify 20min, obtains the present invention that thickness is about 10cm and to wet curtain D.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
Embodiment 5
100g phenolic resins and 300g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 3wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 30min at 70 DEG C, by Corrugating Machine compacting wave height be 3mm, wave space is the waveform groove of 3mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 160 DEG C, solidify 30min, obtains the present invention that thickness is about 10cm and to wet curtain E.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
Embodiment 6
100g phenolic resins and 300g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 2wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 20min at 70 DEG C, by Corrugating Machine compacting wave height be 4mm, wave space is the waveform groove of 3mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 150 DEG C, solidify 30min, obtains the present invention that thickness is about 10cm and to wet curtain F.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
Embodiment 7
100g phenolic resins, wet strength agent 0.5g, emulsifying agent 0.8g, preservative agent 0.6g and 200g water are added stirrer for mixing even, obtain phenolic resin aqueous solution; Getting 50g concentration after high-pressure homogeneous process is that the nanocrystal cellulose colloidal solution of 1wt% adds in described mixer, mixes, obtain liquid phenolic resin with described phenolic resin aqueous solution.Body paper being immersed to soaking in above-mentioned phenolic resins mixed liquor, taking out, dry 20min at 80 DEG C, by Corrugating Machine compacting wave height be 4mm, wave space is the waveform groove of 3mm, obtains corrugated paper.By corrugated paper interfolded, blend compounds sticks agent and is bonded together, at 155 DEG C, solidify 30min, obtains the present invention that thickness is about 10cm and to wet curtain G.
Water absorption rate and intensity test is carried out according to " NYT1967-2010 paper wet curtain performance test methods "; Wet curtain is placed in wet curtain air-cooler, and the granule density of the method test recorded according to " GB18801-2008 air purifier " PM10 and PM2.5 in the air of wet curtain purification, assesses the wet curtain ability of purifying air.
The water absorbing properties of the wet curtain that comparative example 1 and embodiment 1-7 obtain and mechanical strength result of the test are in table 1, and purification of air result of the test is in table 2.
Table 1 wets curtain water absorbing properties and mechanical strength result of the test
| Wet curtain | D1 | A | B | C | D | E | F | G |
| Water absorption rate/% | 114 | 227 | 362 | 376 | 361 | 335 | 321 | 305 |
| Compression strength/kpa | 127 | 168 | 177 | 181 | 163 | 159 | 146 | 144 |
As can be seen from Table 1, compared with the wet curtain of comparative example 1, wet curtain water absorbing properties of the present invention and compressive property significantly strengthen, and water absorption rate adds 99-230%, and compression strength improves 13-43%.
Table 2 purification of air result of the test
| Environment/wet curtain | Environment | D1 | A | B | C | D | E | F | G |
| PM10/μg/m 3 | 385 | 304 | 107 | 98 | 96 | 109 | 112 | 119 | 128 |
| PM2.5/μg/m 3 | 159 | 134 | 98 | 91 | 91 | 98 | 101 | 104 | 110 |
Table 2 gives this wet curtain and conventional wet curtain to the comparative result of air purification effect.In China's air, the health standards of PM10 concentration are lower than 150 μ g/m
3, the health standards of PM2.5 concentration are lower than 75 μ g/m
3.As can be seen from Table 2, the novel high-density of the present invention curtain that wets has effective clean-up effect to PM10, PM10 can be reduced to below health standards, also serves preliminary effect of filtering to PM2.5.
Claims (10)
1. a paper wet curtain liquid phenolic resin, with parts by weight, comprises following component:
100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part and water 150-400 part.
2. liquid phenolic resin according to claim 1, is characterized in that, the diameter of described nanocrystal cellulose is 8-100nm, and length is 100-500nm.
3. liquid phenolic resin according to claim 1 and 2.It is characterized in that, described liquid phenolic resin also comprises one or more in wet strength agent, emulsifying agent or preservative agent.
4. the preparation method of the liquid phenolic resin described in claim 1 or 2, comprising:
(1) with parts by weight, 100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part and water 150-400 part is got;
(2) described phenolic resins is dissolved in a part of water and obtains phenolic resin aqueous solution; Described nanocrystal cellulose is mixed with remainder water, obtains described nanocrystal cellulose colloidal solution through high-pressure homogeneous process;
(3) described phenolic resin aqueous solution is mixed with described nanocrystal cellulose colloidal solution, obtain described liquid phenolic resin.
5. the preparation method of liquid phenolic resin according to claim 3, comprising:
(1) with parts by weight, 100 parts, phenolic resins, nanocrystal cellulose 0.5-5 part, water 150-400 part is got, and one or more in described wet strength agent, emulsifying agent or preservative agent;
(2) by one or more in described wet strength agent, emulsifying agent or preservative agent, and phenolic resins is dissolved in a part of water and obtains phenolic resins mixed solution; Described nanocrystal cellulose is mixed with remainder water, obtains described nanocrystal cellulose colloidal solution through high-pressure homogeneous process;
(3) described phenolic resins mixed solution is mixed with described nanocrystal cellulose colloidal solution, obtain described liquid phenolic resin.
6. the preparation method according to claim 4 or 5, is characterized in that, in described nanocrystal cellulose colloidal solution, the concentration of nanocrystal cellulose is 1-5wt%.
7. a paper wet curtain, described paper wet curtain is stacked to cohere in the mode that ripple is staggered by multi-disc corrugated paper and forms, and the wave height of described corrugated paper is 1-4mm, and wave space is 1-4mm.
8. paper wet curtain according to claim 7, is characterized in that, described wet curtain adopts the liquid phenolic resin preparation described in any one of claim 1-3.
9. a preparation method for paper wet curtain, comprising:
(1) body paper is adopted the liquid phenolic resin dipping as described in any one of claim 1-3, dry, compacting waveform groove, obtains corrugated paper; The wave height of wherein said corrugated paper is 1-4mm, is preferably 2.5-3.5mm; The temperature of described drying is 70-80 DEG C, and drying time is 20-30min;
(2) by corrugated paper interfolded described in multi-disc, adjacent two panels corrugated paper adhesive coheres, and solidification, obtain described paper wet curtain, the temperature of wherein said solidification is 150-160 DEG C, and hardening time is 15-45min.
10. pad and fan cooling system or a wet curtain air-cooler, comprise paper wet curtain as claimed in claim 7 or 8.
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| CN201410490177.4A CN104294701A (en) | 2014-09-23 | 2014-09-23 | Phenolic resin solution for paper wet curtain and paper wet curtain |
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| CN201410490177.4A CN104294701A (en) | 2014-09-23 | 2014-09-23 | Phenolic resin solution for paper wet curtain and paper wet curtain |
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| CN102174159A (en) * | 2011-03-25 | 2011-09-07 | 济南圣泉集团股份有限公司 | Phenol-formaldehyde resin for wet curtain paper and method for preparing same |
| CN102432789A (en) * | 2011-09-29 | 2012-05-02 | 山东圣泉化工股份有限公司 | Phenolic resin for wet curtain paper, preparation method of phenolic resin and preparation method of wet curtain paper |
| CN102877366A (en) * | 2012-09-28 | 2013-01-16 | 山东圣泉化工股份有限公司 | Method for preparing wet curtain paper |
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- 2014-09-23 CN CN201410490177.4A patent/CN104294701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337375A (en) * | 2008-08-06 | 2009-01-07 | 南京林业大学 | Method for increasing stalk fiberboard surface-density using cotton wood cellulose nano material |
| CN101818467A (en) * | 2010-03-29 | 2010-09-01 | 南京林业大学 | Method for manufacturing cellulose micro-nano-material enhanced adhesive by using enzyme treatment and mechanical method |
| CN102174159A (en) * | 2011-03-25 | 2011-09-07 | 济南圣泉集团股份有限公司 | Phenol-formaldehyde resin for wet curtain paper and method for preparing same |
| CN102432789A (en) * | 2011-09-29 | 2012-05-02 | 山东圣泉化工股份有限公司 | Phenolic resin for wet curtain paper, preparation method of phenolic resin and preparation method of wet curtain paper |
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Address after: 102299 Beijing city Changping District Nan Shao Zhen Xing Chang Road No. 1, Changping science and Technology Park District 1 Building 5 layer Applicant after: Beijing Nano Ace Technology Co., Ltd. Applicant after: State Nanometer Science Center Address before: 102299 Beijing city Changping District Nan Shao Zhen Xing Chang Road No. 1, Changping science and Technology Park District 1 Building 5 layer Applicant before: BEIJING NAXUN TECHNOLOGY CO., LTD. Applicant before: State Nanometer Science Center |
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Application publication date: 20150121 |