CN102093574A - Water dispersed lignin polyurethane material - Google Patents
Water dispersed lignin polyurethane material Download PDFInfo
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- CN102093574A CN102093574A CN2009102615531A CN200910261553A CN102093574A CN 102093574 A CN102093574 A CN 102093574A CN 2009102615531 A CN2009102615531 A CN 2009102615531A CN 200910261553 A CN200910261553 A CN 200910261553A CN 102093574 A CN102093574 A CN 102093574A
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- polyurethane
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- xylogen
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Abstract
The invention relates to a water dispersed lignin polyurethane material. Modified polyurethane is prepared by taking natural lignin prepared from papermaking tail washings instead of a part of polyether polyol as a synthesis raw material of polyurethane. Prepared emulsion, pigment and filler are prepared into a ground material. Polyurethane resin powder obtained by emulsion breaking and drying can be dispersed into water for other use. Resin powder can also be taken as resin mud for kneading artware. The material has the advantages that a lignin liquification technology, a re-dispersible polyurethane prepolymer synthesis technology, a lignin polyurethane indoor ground material preparation technology and a water re-dispersible resin powder preparation technology are provided. Each technology can be used for forming an industrial product independently. A prepared lignin polyurethane indoor ground material comprises a natural lignin structural unit and has natural structural properties, so that a selection basis is provided for customers.
Description
The present invention relates to a kind of water-dispersion lignin polyurethane material, can be used as terrace paint, the redispersion resin-oatmeal in water etc., it is the xylogen produced with the papermaking tail washings synthesis material as urethane, prepared modified polyurethane, and made earth material with pigment and filler, prepared redispersion urethane resin powder via the breakdown of emulsion drying, can be applied to the interior decoration field and, belong to fine chemical technology as artwork starting material-resin mud.
Background technology:
Urethane (PU) material is because its excellent performance has obtained widespread use in a lot of fields.The raw material sources of polyurethane industrial have been enriched in the development of petroleum industry and chemical industry since the fifties, have improved the performance of many products, have once once promoted the prosperity of polyurethane industrial greatly.Yet, along with the progress of society, will be day by day exhausted as the petroleum resources of development of world economy mainstay, various polymer intermediates from oil also will be subjected to serious puzzlement, limit the raw-material source of polyurethane industrial, affecting the development of polyurethane industrial constantly.In addition, be the severe contamination source of environment based on chemical industry of oil etc., along with the raising of people's living standard, the enhancing day by day of environmental consciousness, seek the oil substitute, tap a new source of energy, novel material, reduce from the source and decontamination but seems even more important.
The building-up reactions of PU is the step-reaction polymerization of hydrogen transference, generally is to be interacted and get by binary or multicomponent isocyanate and polyol compound, and-OH is the reactive group of necessity wherein.Xylogen is the natural polyphenol family macromolecule compound of the crosslinking net that is formed by connecting by C-C key and C-O key by phenyl-propane structural unit (C9).Not only contain phenolic hydroxyl group in the xylogen, but also contain active stronger alcoholic extract hydroxyl group.Xylogen is the byproduct of paper industry, and in traditional paper industry, xylogen has only part to be utilized, and major part is burned or discharging, not only causes the huge waste of resource, also environment is caused very big destruction.Both at home and abroad xylogen has been carried out big quantity research as the material of synthetic PU, has obtained remarkable progress, illustrate xylogen can instead of part or whole polyethers or polyester polyols be used to prepare PU.
Xylogen and Mierocrystalline cellulose and hemicellulose are the main components that constitutes the plant skeleton.Standing stock at the occurring in nature xylogen are only second to Mierocrystalline cellulose, are second largest natural organic matters.The history in existing thousands of years of human use's Mierocrystalline cellulose, and xylogen is not so far by in a large number, utilize widely.
People are utilizing the cellulosic while, have produced a large amount of waste wood elements, not only waste resource, go back serious environment pollution.China's paper-making effluent accounts for 30% of national trade effluent; become first object of China's trade effluent control; pollutent in the paper waste mainly is an xylogen; therefore; no matter from the utilization of resources; still from point of view of environment protection, research, the development and utilization of xylogen all seemed particularly important.
Summary of the invention:
The present invention relates to prepare lignin polyurethane earth material and artwork kneading material resin mud via xylogen liquefaction, the synthetic urethane resin powder redispersion that reaches of base polyurethane prepolymer for use as.
The present invention adopts following technical measures:
(1) xylogen liquefaction: xylogen+polyvalent alcohol → intensification, stirring → modified-reaction → become xylogen that contains soft silk;
(2) the synthetic base polyurethane prepolymer for use as that has the negatively charged ion side chain;
(3) base polyurethane prepolymer for use as and the xylogen liquefied product of band negatively charged ion side chain carry out polycondensation → lignin polyurethane;
(4) lignin polyurethane → lignin polyurethane emulsion → filler and pigment → lignin polyurethane earth material.
Embodiment:
Implement 1:
Xylogen liquefaction is under acid catalysis, with xylogen (chemical industry company limited of Tumen City Hua Wei friendly nation product) 120 ℃～180 ℃ liquefaction in polyether polyol and low molecular weight polyols.
Implement 2:
As shown in Figure 1, according to the urethane composition principle, select isocyanic ester 1, polyvalent alcohol 2, carboxyl dibasic alcohol 3 and organic amine 4 effects, preparation has the base polyurethane prepolymer for use as 6 (PU) of the NCO group end capping of negatively charged ion side chain.
The synthetic synoptic diagram of Fig. 1 base polyurethane prepolymer for use as
Implement 3:
Use xylogen 7 effect preparation water-dispersion lignin polyurethane materials 8 (L-PU) of base polyurethane prepolymer for use as 6 (PU) and liquefaction processing as shown in Figure 2.
The synthetic synoptic diagram of Fig. 2 lignin polyurethane
Implement 4:
With the other emulsion of water-dispersion lignin polyurethane material 8, insert earth material in pigment and other mineral powder preparation rooms.Implement 5:
With the redispersible lignin polyurethane resin-oatmeal of the dry preparation of water-dispersion lignin polyurethane material 8 breakdowns of emulsion.
In a word, the present invention obtains xylogen emulsion and redispersible lignin polyurethane via xylogen liquefaction and base polyurethane prepolymer for use as reaction.Contain xylogen liquefaction technology, redispersible base polyurethane prepolymer for use as synthetic technology, lignin polyurethane flooring material technology and artwork kneading resin-oatmeal technology of preparing in the invention.Each technology can independently form a kind of Industrial products.Contain natural lignin's structural unit characteristic in the macromolecular chain foundation of selection will be provided to the human consumer.
Claims (7)
1. in the presence of catalyzer, in 70 ℃～260 ℃ temperature ranges,, use the organic solvent stripping, and reclaim organic solvent with many alcohol liquefaction xylogen.
2. about the synthesis material of the described xylogen liquefaction of claim 1 thing as urethane.
3. the synthetic in advance a kind of raw material of the base polyurethane prepolymer for use as of negative ion side chain and NCO group end capping that have as the lignin polyurethane earth material.
4. xylogen liquefied product as claimed in claim 1 and the described base polyurethane prepolymer for use as prepared in reaction of claim 3 lignin polyurethane emulsion (solid content 1%-70%) can be done terrace paint.
5. xylogen as claimed in claim 1 and the described base polyurethane prepolymer for use as prepared in reaction of claim 3 lignin polyurethane resin-oatmeal.
6. lignin polyurethane resin-oatmeal as claimed in claim 5 can be used as the resin mud of kneading artwork.
7. the redispersible emulsion of in water, making of lignin polyurethane resin-oatmeal as claimed in claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102615531A CN102093574A (en) | 2009-12-14 | 2009-12-14 | Water dispersed lignin polyurethane material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102615531A CN102093574A (en) | 2009-12-14 | 2009-12-14 | Water dispersed lignin polyurethane material |
Publications (1)
| Publication Number | Publication Date |
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| CN102093574A true CN102093574A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102615531A Pending CN102093574A (en) | 2009-12-14 | 2009-12-14 | Water dispersed lignin polyurethane material |
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| CN (1) | CN102093574A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304264B6 (en) * | 2012-09-21 | 2014-02-05 | SYNPO, akciová společnost | Process for preparing polyurethane materials containing lignin and polyurethane material prepared in such a manner |
| CN103965785A (en) * | 2013-02-06 | 2014-08-06 | 佛山市明泰化工有限公司 | Sulfonated lignin aqueous paint |
| CN104628982A (en) * | 2015-02-13 | 2015-05-20 | 陕西科技大学 | Preparation method of alkali lignin-based waterborne polyurethane |
| CN104693406A (en) * | 2015-03-27 | 2015-06-10 | 陕西科技大学 | Preparing method of epoxy lignin modified waterborne polyurethane |
| CN112341585A (en) * | 2020-11-05 | 2021-02-09 | 青岛科技大学 | Redispersible waterborne polyurethane powder and preparation method thereof |
-
2009
- 2009-12-14 CN CN2009102615531A patent/CN102093574A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304264B6 (en) * | 2012-09-21 | 2014-02-05 | SYNPO, akciová společnost | Process for preparing polyurethane materials containing lignin and polyurethane material prepared in such a manner |
| CN103965785A (en) * | 2013-02-06 | 2014-08-06 | 佛山市明泰化工有限公司 | Sulfonated lignin aqueous paint |
| CN104628982A (en) * | 2015-02-13 | 2015-05-20 | 陕西科技大学 | Preparation method of alkali lignin-based waterborne polyurethane |
| CN104628982B (en) * | 2015-02-13 | 2019-01-22 | 陕西科技大学 | A kind of preparation method of alkali lignin base water polyurethane |
| CN104693406A (en) * | 2015-03-27 | 2015-06-10 | 陕西科技大学 | Preparing method of epoxy lignin modified waterborne polyurethane |
| CN112341585A (en) * | 2020-11-05 | 2021-02-09 | 青岛科技大学 | Redispersible waterborne polyurethane powder and preparation method thereof |
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Application publication date: 20110615 |