CN102676089A - Polyvinyl acetal adhesive without free formaldehyde release and preparation method of polyvinyl acetal adhesive - Google Patents
Polyvinyl acetal adhesive without free formaldehyde release and preparation method of polyvinyl acetal adhesive Download PDFInfo
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- CN102676089A CN102676089A CN2012101134771A CN201210113477A CN102676089A CN 102676089 A CN102676089 A CN 102676089A CN 2012101134771 A CN2012101134771 A CN 2012101134771A CN 201210113477 A CN201210113477 A CN 201210113477A CN 102676089 A CN102676089 A CN 102676089A
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Abstract
The invention discloses a polyvinyl acetal adhesive without free formaldehyde release and a preparation method of the polyvinyl acetal adhesive. The method includes: sequentially adding polyvinyl alcohol and water accounting for 85% of total water usage into a reaction kettle according to weight parts of raw materials, heating to 90-95 DEG C, condensing and refluxing until the polyvinyl alcohol to be dissolved completely; cooling to 75-85 DEG C, using hydrochloric acid to regulate pH (potential of hydrogen) value to range from 1.5 to 2.5, adding glyoxal and performing heat insulation reaction for 0.5-2.0h; supplementing water accounting for 15% of total water usage, adding modified starch to continue reaction for 0.5-1.0h; and finally using alkali liquor to regulate the pH value to range from 7.0 to 8.0, cooling and discharging to obtain viscous liquid polyvinyl acetal adhesive without free formaldehyde release. The adhesive prepared by the method is free of free formaldehyde release and irritant odors and beneficial to human health and environment protection. Further, the polyvinyl acetal adhesive is fine in water resistance, long in storage stationary phase, simple in production process and easy to operate and control.
Description
Technical field
The present invention relates to a kind of JSF stick that does not have free formaldehyde release and preparation method thereof, belong to polymeric material field.
Background technology
Polyvinyl acetal is a kind of one of well material modified in the tackiness agent; The condensation product general designation polyvinyl acetal of Z 150PH and various aldehydes; Main products is two kinds of PVF and polyvinyl butyral acetals; And polyvinyl acetal is nontoxic, odorless, non-corrosiveness, has certain chemical stability, is heated to thermolysis just takes place more than 100 ℃; The tackiness agent that makes has good mechanical performance, resistance toheat, chemicalstability is good but also have good insulation performance property, water tolerance, stability to aging, film-forming properties and anti-stampability, and metal, timber etc. is had good tackiness.
Summary of the invention
For deficiency and the defective of alleviating prior art; The object of the present invention is to provide a kind of JSF stick that does not have free formaldehyde release and preparation method thereof; The tackiness agent of the present invention's preparation does not have free formaldehyde and discharges, and non-irritating smell helps HUMAN HEALTH and environment protection; And its water-tolerant, the stable storing phase is long, and production technique is simple, is easy to operate and control.
The present invention adopts following technical scheme to achieve these goals:
The JSF stick that no free formaldehyde discharges is characterized in that the weight part of its constitutive material is: Z 150PH 5-8, oxalic dialdehyde 1-4, water 88-93 and treated starch 0.5-1.0.
The preparation method of the JSF stick that described no free formaldehyde discharges is characterized in that may further comprise the steps:
(1) join successively in the reaction kettle by the weight part of the constitutive material water with the total consumption 85% of Vilaterm alcohol and water, stir, temperature of reaction system is heated to 90-95 ℃, condensing reflux all dissolves until Z 150PH;
(2) step (1) temperature of reaction system is dropped to 75-85 ℃, add oxalic dialdehyde, insulation reaction 0.5-2.0h after using pH value that hydrochloric acid regulates this system as 1.5-2.5;
(3) in step (2) reaction system, add the water of the total consumption 15% of water, and then add treated starch continuation reaction 0.5-1.0h;
(4) use alkali lye to regulate this system pH and be 7.0-8.0, cooling discharging obtains thick liquid colourless, non-irritating smell, is the JSF stick that no free formaldehyde discharges.
The JSF stick that described no free formaldehyde discharges; It is characterized in that also containing benzene emulsion 1-3 in its constitutive material, the weight part of benzene emulsion constitutive material is: deionized water 95-105, methyl alcohol 4-6, polyamide-amide type dendrimer 0.5-1.5, vinylbenzene 18-22, TEB 3K 6-10, vinylformic acid 4-6, Potassium Persulphate 0.3-0.5, X 2073 0.5-0.7; Prepare through following steps:
75-85 part deionized water and whole emulsifying agent X 2073, methyl alcohol are added four-hole boiling flask, and the emulsification of high-speed stirring to emulsifying agent is abundant, feeds N
2Gas shiled is at the uniform velocity stirred, and adds the methanol solution of polyamide-amide type dendrimer then; Carry out warming-in-water simultaneously, wait to be warmed up to about 80 ℃, drip into flask respectively by two constant flow pumps, control 0.5 hour and add with monomer styrene, TEB 3K and vinylformic acid and with the consoluet Potassium Persulphate of deionized water; After monomer and Potassium Persulphate dripped off simultaneously, insulation 1h was warming up to 85-95 ℃ of slaking 1h then; Stop heating, stir and be cooled to room temperature, promptly get polymer emulsion.
Benzene emulsion and oxalic dialdehyde add in the lump participates in reaction.
Beneficial effect of the present invention:
The tackiness agent of the present invention's preparation does not have free formaldehyde and discharges, and non-irritating smell helps HUMAN HEALTH and environment protection; And its water-tolerant, the stable storing phase is long, and production technique is simple, is easy to operate and control.
Embodiment
Embodiment 1: the JSF stick that no free formaldehyde discharges is characterized in that the weight part of its constitutive material is: Z 150PH 5-8, oxalic dialdehyde 1-4, water 88-93 and treated starch 0.5-1.0.
The preparation method of the JSF stick that described no free formaldehyde discharges is characterized in that may further comprise the steps:
(1) join successively in the reaction kettle by the weight part of the constitutive material water with the total consumption 85% of Vilaterm alcohol and water, stir, temperature of reaction system is heated to 90-95 ℃, condensing reflux all dissolves until Z 150PH;
(2) step (1) temperature of reaction system is dropped to 75-85 ℃, add oxalic dialdehyde, insulation reaction 0.5-2.0h after using pH value that hydrochloric acid regulates this system as 1.5-2.5;
(3) in step (2) reaction system, add the water of the total consumption 15% of water, and then add treated starch continuation reaction 0.5-1.0h;
(4) use alkali lye to regulate this system pH and be 7.0-8.0, cooling discharging obtains thick liquid colourless, non-irritating smell, is the JSF stick that no free formaldehyde discharges.
The Performance Detection data of JSF stick of the present invention:
Embodiment 2
The JSF stick that no free formaldehyde discharges; With respect to embodiment 1; Also contain benzene emulsion 1-3 in its constitutive material, the weight part of benzene emulsion constitutive material is: deionized water 100, methyl alcohol 5, polyamide-amide type dendrimer 1.5, vinylbenzene 22, TEB 3K 6, vinylformic acid 6, Potassium Persulphate 0.3, X 2073 0.5; Prepare through following steps:
75-85 part deionized water and whole emulsifying agent X 2073, methyl alcohol are added four-hole boiling flask, and the emulsification of high-speed stirring to emulsifying agent is abundant, feeds N
2Gas shiled is at the uniform velocity stirred, and adds the methanol solution of polyamide-amide type dendrimer then; Carry out warming-in-water simultaneously, wait to be warmed up to about 80 ℃, drip into flask respectively by two constant flow pumps, control 0.5 hour and add with monomer styrene, TEB 3K and vinylformic acid and with the consoluet Potassium Persulphate of deionized water; After monomer and Potassium Persulphate dripped off simultaneously, insulation 1h was warming up to 85-95 ℃ of slaking 1h then; Stop heating, stir and be cooled to room temperature, promptly get polymer emulsion.
Benzene emulsion and oxalic dialdehyde add in the lump participates in reaction.
All the other are with embodiment 1.
Claims (3)
1. one kind is not had the JSF stick that free formaldehyde discharges, and it is characterized in that the weight part of its constitutive material is: Z 150PH 5-8, oxalic dialdehyde 1-4, water 88-93 and treated starch 0.5-1.0.
2. the JSF stick that no free formaldehyde according to claim 1 discharges; It is characterized in that also containing benzene emulsion 1-3 in its constitutive material, the weight part of benzene emulsion constitutive material is: deionized water 95-105, methyl alcohol 4-6, polyamide-amide type dendrimer 0.5-1.5, vinylbenzene 18-22, TEB 3K 6-10, vinylformic acid 4-6, Potassium Persulphate 0.3-0.5, X 2073 0.5-0.7; Prepare through following steps:
75-85 part deionized water and whole emulsifying agent X 2073, methyl alcohol are added four-hole boiling flask, and the emulsification of high-speed stirring to emulsifying agent is abundant, feeds N
2Gas shiled is at the uniform velocity stirred, and adds the methanol solution of polyamide-amide type dendrimer then; Carry out warming-in-water simultaneously, wait to be warmed up to about 80 ℃, drip into flask respectively by two constant flow pumps, control 0.5 hour and add with monomer styrene, TEB 3K and vinylformic acid and with the consoluet Potassium Persulphate of deionized water; After monomer and Potassium Persulphate dripped off simultaneously, insulation 1h was warming up to 85-95 ℃ of slaking 1h then; Stop heating, stir and be cooled to room temperature, promptly get polymer emulsion.
3. the preparation method of the JSF stick that discharges of a no free formaldehyde according to claim 1 or claim 2 is characterized in that may further comprise the steps:
(1) join successively in the reaction kettle by the weight part of the constitutive material water with the total consumption 85% of Vilaterm alcohol and water, stir, temperature of reaction system is heated to 90-95 ℃, condensing reflux all dissolves until Z 150PH;
(2) step (1) temperature of reaction system is dropped to 75-85 ℃, use pH value that hydrochloric acid regulates this system as 1.5-2.5 after adding oxalic dialdehyde etc., insulation reaction 0.5-2.0h;
(3) in step (2) reaction system, add the water of the total consumption 15% of water, and then add treated starch continuation reaction 0.5-1.0h;
(4) use alkali lye to regulate this system pH and be 7.0-8.0, cooling discharging obtains thick liquid colourless, non-irritating smell, is the JSF stick that no free formaldehyde discharges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113477.1A CN102676089B (en) | 2012-04-17 | 2012-04-17 | A kind of JSF stick without free formaldehyde release and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113477.1A CN102676089B (en) | 2012-04-17 | 2012-04-17 | A kind of JSF stick without free formaldehyde release and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102676089A true CN102676089A (en) | 2012-09-19 |
| CN102676089B CN102676089B (en) | 2016-03-23 |
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| CN201210113477.1A Active CN102676089B (en) | 2012-04-17 | 2012-04-17 | A kind of JSF stick without free formaldehyde release and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312495A (en) * | 2014-11-17 | 2015-01-28 | 宁夏中远天宇科技有限公司 | Production ratio of novel formaldehyde-free adhesive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104811A (en) * | 1986-07-19 | 1988-02-17 | 徐克信 | Soluble polyvinyl acetals adhesive |
| US20070167561A1 (en) * | 2006-01-12 | 2007-07-19 | Dynea Oy | Polymer-aldehyde binding system for manufacture of wood products |
| CN101735746A (en) * | 2009-12-11 | 2010-06-16 | 莆田市奥奇偏振器件有限公司 | Polaroid sheet, adhesive and preparation method thereof |
| CN102002332A (en) * | 2010-11-03 | 2011-04-06 | 广州市诺康化工有限公司 | Formaldehyde-free building adhesive and preparation process thereof |
| CN102041687A (en) * | 2010-11-01 | 2011-05-04 | 张瑜 | Waterproof ventilated synthetic leather and preparation method thereof |
-
2012
- 2012-04-17 CN CN201210113477.1A patent/CN102676089B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104811A (en) * | 1986-07-19 | 1988-02-17 | 徐克信 | Soluble polyvinyl acetals adhesive |
| US20070167561A1 (en) * | 2006-01-12 | 2007-07-19 | Dynea Oy | Polymer-aldehyde binding system for manufacture of wood products |
| CN101735746A (en) * | 2009-12-11 | 2010-06-16 | 莆田市奥奇偏振器件有限公司 | Polaroid sheet, adhesive and preparation method thereof |
| CN102041687A (en) * | 2010-11-01 | 2011-05-04 | 张瑜 | Waterproof ventilated synthetic leather and preparation method thereof |
| CN102002332A (en) * | 2010-11-03 | 2011-04-06 | 广州市诺康化工有限公司 | Formaldehyde-free building adhesive and preparation process thereof |
Non-Patent Citations (3)
| Title |
|---|
| 孙幼红: ""水溶性聚乙烯醇缩乙二醛胶粘剂的制备"", 《南京晓庄学院学报》 * |
| 李小瑞等: ""乙二醛改性聚乙烯醇纸张增强剂的研究"", 《中华纸业》 * |
| 郑文治等: ""PVA/乙二醛缩醛胶的制备与性能表征"", 《精细石油化工进展》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104312495A (en) * | 2014-11-17 | 2015-01-28 | 宁夏中远天宇科技有限公司 | Production ratio of novel formaldehyde-free adhesive |
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| CN102676089B (en) | 2016-03-23 |
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