CN1485389A - Production of powder cementing agent for glass bat - Google Patents
Production of powder cementing agent for glass bat Download PDFInfo
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- CN1485389A CN1485389A CNA031317944A CN03131794A CN1485389A CN 1485389 A CN1485389 A CN 1485389A CN A031317944 A CNA031317944 A CN A031317944A CN 03131794 A CN03131794 A CN 03131794A CN 1485389 A CN1485389 A CN 1485389A
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Abstract
A method of preparing powdery bonding material for blankets of glass precursor fibers. It comprises, introducing anion polymeric emulsifying agent, preparing polymer emulsion with high content of solids, low viscosity and high stability by core-sheath polymerization, then obtaining powdery bonding material. The product has excellent bonding ability and cohesion, effectively improves mechanical pulling strength of glass precursor fiber.
Description
Technical field
The glass fiber precursor felt relates to the powder adhesive preparation field with the preparation method of powder adhesive, relates in particular to glass fiber precursor felt powder adhesive preparation field.
Background technology
Glass chopped strand mats or continuous felt are at a certain temperature, by glass fiber binder, with non-woven glass fibre material molding bondeds such as dispersive fiberglas chopped strand, continuous glass fibre raw tows.The glass fiber precursor felt can be divided into two big classes with binding agent by its form; Powder-type and emulsion-type.The characteristics of powder-type binding agent are, felt resin impregnated speed is fast, but felt body machinery tension intensity is little, and its complex manufacturing, and in its production process, molten polymer needs through overcooling, pulverizing, step such as grind, sieve.Whole technological process energy consumption is big, and dust pollution is serious.Though and the anxiety of emulsion-type binding agent no dust pollution, its resin impregnated speed is slow, and the emulsion felt is in its production process, easily on felt machine guipure " skinning ", the cleaning amount is big for polymer emulsion, puts to no little inconvenience to continuous production.For eliminating dust pollution, can yet be regarded as by spray-drying process makes the good method of powder-type binding agent, but the emulsion-type binding agent is made powder-type certain technical difficulty is arranged.Mainly be that drying machine with centrifugal spray is higher to the emulsion binder ingredient requirement, it had both required emulsion binder solid content height, water content few, also required emulsion binder powder yield height at high temperature.This does not accomplish for " polymer emulsion " of now common usefulness.Because the high-solid content polymer emulsion can cause the obstruction of spinning head, the high-temperature hot-air in the spray-drier more than 100 ℃ makes " polymer emulsion " moulding difficulty especially.Because the emulsion particle that solid content is high at high temperature very easily is bonded on the barrel of whizzer, the lighter makes the powder rate very low, and weight person just forms the binding agent thick-layer, can't obtain solid state powder at all.
Summary of the invention
The objective of the invention is to: at the problem of above-mentioned existence, the preparation method of a kind of glass fiber precursor felt with powder adhesive proposed, mode by hud polymerization makes " core-shell polymer emulsion " at last, and then adopts " drying process with atomizing " to generate the powder-type binding agent.
Technical solution of the present invention is: it comprises the synthetic of stratum nucleare polymer emulsion, it is characterized in that, it also comprises the synthetic of shell polymer emulsion and hud polymerization reaction, and adopts the drying process with atomizing moulding, and its technical process and reaction conditions are as follows:
1) emulsifying agent is composite: it is composite to select for use anionic polymerization type (response type) emulsifying agent and a kind of HLB value to carry out at the nonionic emulsifier of 6-20, and compound proportion is counted by weight percentage the emulsifier aqueous solution into 0.5-3%.
2) preparation thermal decomposition initiating: select thermal decomposition initiating for use, the preparation initiator solution, the total add-on of control initiator accounts for the 0.3%-1% of total monomer content.
3) synthetic kernel strata compound emulsion:
A) with the above-mentioned composite good Polymerizable Emulsifier aqueous solution and the pre-emulsification of stratum nucleare reaction monomers, wherein to account for the total monomer weight percent be 0.8-6% to the total emulsifiers aqueous solution; In the total monomer, soft, hard monomer weight ratio is 1: 1-2; The weight percent of total reaction monomer and water is 1: 0.5-2.5.
B) will be through stratum nucleare reaction monomers that a) the pre-emulsification of step is good with through 2) the thermal decomposition initiating solution that makes of step dropwise drips, stirs, and temperature of reaction is controlled at 75-85 ℃, and the time is 1-2 hour, makes the stratum nucleare polymer emulsion.
4) synthetic shell polymer emulsion:
A) will be set by step 1) the composite good Polymerizable Emulsifier aqueous solution and the pre-emulsification of shell reaction monomers, wherein to account for the total monomer weight percent be 0.8-6% to total emulsifiers; Soft in the shell reaction monomers, hard monomer weight percent proportion by subtraction is 1: 1.5-2.5, the ratio of total reaction monomer and water is 1: 0.5-2.5.
B) will dropwise drip, stir through shell reaction monomers and the thermal decomposition initiating solution that a) the pre-emulsification of step is good, temperature of reaction is controlled at 75-85 ℃, and the time is 1-2 hour, makes the shell polymer emulsion.
5) insulation reaction: the synthetic of housing polymer emulsion carries out in the nucleome polymer emulsion, after the nucleocapsid polymer reaction is finished, is incubated 1-2 hour again under 80-90 ℃, makes core-shell polymer emulsion.
6) core-shell polymer emulsion is passed through the drying machine with centrifugal spray drying, make the powder adhesive finished product.
Anionic polymerization type (response type) emulsifying agent is one of following material: 1) vinyl sodium salt; 2) vinyl sulfonic acid sodium salt.The HLB value is the alkylphenol ethylene oxide condensate at the nonionic emulsifier of 6-20.Soft monomer in synthetic kernel strata compound and the shell polymer reaction is one of following material: 1) butyl acrylate; 2) isobutyl acrylate; Hard monomer is one of following material, 1) and vinylbenzene; 2) methyl methacrylate; 3) vinyl acetate between to for plastic.Thermal decomposition initiating is one of following material: 1) Potassium Persulphate; 2) ammonium persulphate.
Because the present invention has introduced aggretion type (response type) emulsifying agent in the polymer emulsion building-up process, on the basis of stratum nucleare polymer emulsion, added the reaction of shell reaction monomers, made high stability, high solids content, low viscous core-shell polymer emulsion.It has the nucleocapsid structure of " interior soft outer hard ", so just makes it to make powder adhesive with " drying process with atomizing ".This powder adhesive not only has good cohesiveness and force of cohesion, effectively raise the mechanical tension intensity of glass fiber precursor felt, and owing to adopted advanced " drying process with atomizing ", defectives such as energy consumption height, dust pollution in the traditional milling technology be serious have been overcome effectively.Its powder process yield height, powder water ratio meet glass fiber precursor felt quantity-produced needs fully less than 2%.
Embodiment
Embodiment 1
1) emulsifying agent is composite: it is that methylpropene sodium sulfonate and nonionic emulsifying agent are that the HLB value is 8 OP-8 that present embodiment adopts aggretion type (response type) emulsifying agent, and composite mode makes emulsifier solution.As shown in table 1
Table 1
| Name of material | Weight (g) |
| Methylpropene sodium sulfonate | ????30 |
| OP-8 | ????10 |
| Deionized water | ????460 |
2) configuration thermal decomposition initiating: the initiator that present embodiment adopts is a persulfate aqueous solution, controls total add-on and accounts for 0.5% of total monomer content.
3) synthetic kernel strata compound emulsion: as shown in table 2 to reaction monomers, carry out pre-emulsification.Wherein vinylbenzene, methyl methacrylate are hard monomer, and Isooctyl acrylate monomer is a soft monomer.The soft or hard monomer weight ratio is 1: 1.5, pre-emulsified monomer and initiator solution is progressively dropped in the four-hole boiling flask respectively react, and keeps temperature of reaction at 80 ℃, 2 hours.Make " nuclear " emulsion in " nuclear-shell " structure.
Table 2
| Name of material | Weight (g) |
| Vinylbenzene | ????580 |
| Methyl methacrylate | ????20 |
| Isooctyl acrylate monomer | ????400 |
| Emulsifier solution | ????300 |
| Deionized water | ????500 |
4) synthetic shell polymer emulsion: continue reaction monomers, as shown in table 3, carry out pre-emulsification.Wherein vinylbenzene, methyl methacrylate are hard monomer, and Isooctyl acrylate monomer is a soft monomer.The soft or hard monomer weight ratio is 1: 1.9.Pre-emulsified monomer and initiator solution progressively dropped in the four-hole boiling flask respectively react, still keep 80 ℃ of temperature of reaction, 1.5 hours.
Table 3
| Name of material | Weight (g) |
| Vinylbenzene | ????300 |
| Methacrylic acid | ????40 |
| Isooctyl acrylate monomer | ????180 |
| Emulsifier solution | ????200 |
| Deionized water | ????500 |
5) insulation reaction is 1 hour, cooling discharge.Make high stability, high solids content, low viscous polymer emulsion.
6) polymer emulsion is adopted technology as shown in table 4, carry out spraying drying.
Table 4
| Inlet temperature | ????110℃ |
| Air outlet temperature | ????50℃ |
| The residence time | ????2min |
Make performance index powder adhesive as shown in table 5.
Table 5
| Outward appearance | White powder | ||||
| Water ratio | Less than 1% | ||||
| Mobile | Good | ||||
| Size-grade distribution (order) | ??40 | ??80 | ??140 | ??200 | ??＞200 |
| ??6％ | ??8-10％ | ??45-55％ | ??20-25％ | ??5％ | |
Embodiment 2
1) emulsifying agent is composite: it is that methylpropene sodium sulfonate and nonionic emulsifying agent are that the HLB value is 18.5 OP-50 that present embodiment adopts aggretion type (response type) emulsifying agent, and composite mode makes emulsifier solution.As shown in table 6
Table 6
| Name of material | Weight (g) |
| Methylpropene sodium sulfonate | ????20 |
| OP-50 | ????20 |
| Deionized water | ????460 |
2) configuration thermal decomposition initiating: it is ammonium persulfate aqueous solution that present embodiment adopts initiator, controls total add-on and accounts for 0.8% of total monomer content.
3) synthetic kernel strata compound emulsion: as shown in table 7 to reaction monomers, carry out pre-emulsification.Wherein vinyl acetate between to for plastic is a hard monomer, and butyl acrylate is a soft monomer.The soft or hard monomer weight ratio is 1: 1.Pre-emulsified monomer and initiator solution progressively dropped in the four-hole boiling flask respectively react, keep temperature of reaction, 2 hours at 75 ℃.Make " nuclear " emulsion in " nuclear-shell " structure.
Table 7
| Name of material | Weight (g) |
| Vinyl acetate between to for plastic | ????500 |
| Butyl acrylate | ????500 |
| Emulsifier solution | ????300 |
| Deionized water | ????400 |
4) synthetic shell polymer emulsion: continue reaction monomers, as shown in table 8, carry out pre-emulsification.Wherein vinyl acetate between to for plastic is a hard monomer, and butyl acrylate is a soft monomer.The soft or hard monomer weight ratio is 1: 1.5.Pre-emulsified monomer and initiator solution progressively dropped in the four-hole boiling flask respectively react, still keep 75 ℃ of temperature of reaction, 1.5 hours.
Table 8
| Name of material | Weight (g) |
| Vinyl acetate between to for plastic | ????300 |
| Butyl acrylate | ????120 |
| Emulsifier solution | ????200 |
| Deionized water | ????400 |
5) insulation reaction is 1 hour, cooling discharge.Make high stability, high solids content, low viscous polymer emulsion.
6) polymer emulsion is adopted technology as shown in table 9, carry out spraying drying.
Table 9
| Inlet temperature | ????110℃ |
| Air outlet temperature | ????50℃ |
| The residence time | ????2min |
Make performance index powder adhesive as shown in table 10.
Table 10
| Outward appearance | White powder | ||||
| Water ratio | Less than 1% | ||||
| Mobile | Good | ||||
| Size-grade distribution (order) | ??40 | ??80 | ??140 | ??200 | ??＞200 |
| ??6％ | ??8-10％ | ??45-55％ | ??20-25％ | ??5％ | |
Claims (5)
1, the glass fiber precursor felt preparation method of powder adhesive, comprise the synthetic of hud typed polymer emulsion, it is characterized in that it comprises the synthetic of shell polymer emulsion and hud polymerization reaction, and adopt the drying process with atomizing moulding, its technical process and reaction conditions are as follows:
1) Polymerizable Emulsifier is composite: it is composite to select for use anionic polymerization type emulsifying agent and a kind of HLB value to carry out at the nonionic emulsifier of 6-20, and compound proportion is calculated as the emulsifier aqueous solution of 0.5-3% by weight percent monomer.
2) preparation thermal decomposition initiating: select thermal decomposition initiating for use, the configuration initiator solution, the total add-on of control initiator accounts for the 0.3%-1% of total monomer content.
3) synthetic kernel strata compound emulsion:
A) with the above-mentioned composite good Polymerizable Emulsifier aqueous solution and the pre-emulsification of stratum nucleare reaction monomers, wherein to account for the total monomer weight percent be 0.8-6% to the total emulsifiers aqueous solution; In the total monomer, soft, hard monomer weight percent is 1: 1-2; The weight percent of total reaction monomer and water is 1: 0.5-2.5.
B) will be through stratum nucleare reaction monomers that a) the pre-emulsification of step is good with through 2) the thermal decomposition initiating solution that makes of step dropwise drips, stirs, and temperature of reaction is controlled at 75-85 ℃, and the time is 1-2 hour, makes the stratum nucleare polymer emulsion.
4) synthetic shell polymer emulsion:
A) will be set by step 1) the composite good Polymerizable Emulsifier aqueous solution and the pre-emulsification of shell reaction monomers, wherein to account for the total monomer weight percent be 0.8-6% to total emulsifiers; Soft in the shell reaction monomers, hard monomer weight percent is 1: 1.5-2.5, the ratio of total reaction monomer and water is 1: 0.5-2.5.
B) will dropwise drip, stir through shell reaction monomers and the thermal decomposition initiating solution that a) the pre-emulsification of step is good, temperature of reaction is controlled at 75-85 ℃, and the time is 1-2 hour, makes the shell polymer emulsion.
5) insulation reaction: the synthetic of housing polymer emulsion carries out in the nucleome polymer emulsion, after the nucleocapsid polymer reaction is finished, is incubated 1-2 hour again under 80-90 ℃, makes core-shell polymer emulsion.
6) core-shell polymer emulsion is passed through the drying machine with centrifugal spray drying, make the powder adhesive finished product.
2, the glass fiber precursor felt according to claim 1 preparation method of powder adhesive, it is characterized in that: the anionic polymerization emulsifying agent is one of following material: 1) vinyl sodium salt; 2) vinyl sulfonic acid sodium salt.
3, the glass fiber precursor felt according to claim 1 preparation method of powder adhesive, it is characterized in that: the HLB value is the alkylphenol ethylene oxide condensate at the nonionic emulsifier of 6-20.
4, the glass fiber precursor felt according to claim 1 preparation method of powder adhesive, it is characterized in that: the soft monomer in the reaction is one of following material: 1) butyl acrylate; 2) isobutyl acrylate; Hard monomer is one of following material, 1) and vinylbenzene; 2) methyl methacrylate; 3) vinyl acetate between to for plastic.
5, the glass fiber precursor felt according to claim 1 preparation method of powder adhesive, it is characterized in that: thermal decomposition initiating is one of following material: 1) Potassium Persulphate; 2) ammonium persulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131794 CN1220744C (en) | 2003-07-30 | 2003-07-30 | Production of powder cementing agent for glass bat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131794 CN1220744C (en) | 2003-07-30 | 2003-07-30 | Production of powder cementing agent for glass bat |
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| Publication Number | Publication Date |
|---|---|
| CN1485389A true CN1485389A (en) | 2004-03-31 |
| CN1220744C CN1220744C (en) | 2005-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03131794 Expired - Fee Related CN1220744C (en) | 2003-07-30 | 2003-07-30 | Production of powder cementing agent for glass bat |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580045C (en) * | 2008-06-11 | 2010-01-13 | 嘉兴市新大陆机电有限公司 | Glue solution for manufacturing heat-expandable glass mat and method for manufacturing heat-expandable glass mat by using glue solution |
| CN102676095A (en) * | 2011-03-07 | 2012-09-19 | 顺安涂布科技(昆山)有限公司 | Composition and manufacture method for emulsion type pressure-sensitive adhesive, and protection adhesive tape thereof |
| CN103936932A (en) * | 2014-05-15 | 2014-07-23 | 齐齐哈尔大学 | Synthetic method of core-shell emulsion particle comprising hydroxyl on surface layer |
| CN105950078A (en) * | 2016-05-11 | 2016-09-21 | 南京京锦元科技实业有限公司 | Polyacrylate powder adhesive |
| CN108977137A (en) * | 2018-07-10 | 2018-12-11 | 苏州华龙化工有限公司 | A kind of preparation method of glass fibre high temperature resistant waterproof binder |
| CN111363500A (en) * | 2020-04-29 | 2020-07-03 | 佛山市顺德区蓝德堡实业有限公司 | Vinyl acetate-acrylic emulsion adhesive for glass chopped strand mats and preparation method thereof |
-
2003
- 2003-07-30 CN CN 03131794 patent/CN1220744C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580045C (en) * | 2008-06-11 | 2010-01-13 | 嘉兴市新大陆机电有限公司 | Glue solution for manufacturing heat-expandable glass mat and method for manufacturing heat-expandable glass mat by using glue solution |
| CN102676095A (en) * | 2011-03-07 | 2012-09-19 | 顺安涂布科技(昆山)有限公司 | Composition and manufacture method for emulsion type pressure-sensitive adhesive, and protection adhesive tape thereof |
| CN103936932A (en) * | 2014-05-15 | 2014-07-23 | 齐齐哈尔大学 | Synthetic method of core-shell emulsion particle comprising hydroxyl on surface layer |
| CN105950078A (en) * | 2016-05-11 | 2016-09-21 | 南京京锦元科技实业有限公司 | Polyacrylate powder adhesive |
| CN108977137A (en) * | 2018-07-10 | 2018-12-11 | 苏州华龙化工有限公司 | A kind of preparation method of glass fibre high temperature resistant waterproof binder |
| CN111363500A (en) * | 2020-04-29 | 2020-07-03 | 佛山市顺德区蓝德堡实业有限公司 | Vinyl acetate-acrylic emulsion adhesive for glass chopped strand mats and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN1220744C (en) | 2005-09-28 |
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