NZ792859B2 - Aqueous resin composition and use as binder in fibre-based products - Google Patents
Aqueous resin composition and use as binder in fibre-based productsInfo
- Publication number
- NZ792859B2 NZ792859B2 NZ792859A NZ79285921A NZ792859B2 NZ 792859 B2 NZ792859 B2 NZ 792859B2 NZ 792859 A NZ792859 A NZ 792859A NZ 79285921 A NZ79285921 A NZ 79285921A NZ 792859 B2 NZ792859 B2 NZ 792859B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- resin composition
- aqueous resin
- fibre
- oxidised
- cellulose
- Prior art date
Links
- 239000011342 resin composition Substances 0.000 title claims abstract 18
- 239000011230 binding agent Substances 0.000 title claims abstract 7
- 239000000835 fiber Substances 0.000 title claims 7
- 229920002678 cellulose Polymers 0.000 claims abstract 16
- 239000001913 cellulose Substances 0.000 claims abstract 16
- 239000011347 resin Substances 0.000 claims abstract 13
- 229920005989 resin Polymers 0.000 claims abstract 13
- 238000000034 method Methods 0.000 claims abstract 11
- 125000003172 aldehyde group Chemical group 0.000 claims abstract 9
- 239000003431 cross linking reagent Substances 0.000 claims abstract 7
- 239000000047 product Substances 0.000 claims abstract 6
- 150000004676 glycans Chemical class 0.000 claims abstract 5
- 229920001282 polysaccharide Polymers 0.000 claims abstract 5
- 239000005017 polysaccharide Substances 0.000 claims abstract 5
- 238000004519 manufacturing process Methods 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims abstract 3
- 239000007795 chemical reaction product Substances 0.000 claims abstract 2
- 150000002373 hemiacetals Chemical class 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 8
- 239000007787 solid Substances 0.000 claims 5
- 239000004971 Cross linker Substances 0.000 claims 4
- 239000002023 wood Substances 0.000 claims 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 3
- 229920002522 Wood fibre Polymers 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 claims 2
- 238000004132 cross linking Methods 0.000 claims 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 claims 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 150000001299 aldehydes Chemical class 0.000 claims 1
- 239000004599 antimicrobial Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000007865 diluting Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 229940074391 gallic acid Drugs 0.000 claims 1
- 235000004515 gallic acid Nutrition 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 claims 1
- 239000012774 insulation material Substances 0.000 claims 1
- 239000002648 laminated material Substances 0.000 claims 1
- -1 organosilane compounds Chemical class 0.000 claims 1
- 229920000768 polyamine Polymers 0.000 claims 1
- 239000005056 polyisocyanate Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 239000000600 sorbitol Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/005—Crosslinking of cellulose derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/04—Oxycellulose; Hydrocellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
Abstract
The invention relates to an aqueous resin composition and a method for the manufacture of an aqueous resin composition which resin is a reaction product of an oxidised polysaccharide and a crosslinking agent, which oxidised polysaccharide is an oxidised cellulose comprising aldehyde groups, which crosslinking agent comprises two or more groups reactive with the aldehyde groups, wherein the aldehyde groups in the resin in the aqueous resin composition are in hydrated or un-hydrated form and are at least partly converted to inter- or intramolecular hemiacetals, wherein the resin is dispersed and/or dissolved but not gelled. The invention also relates to the use of this composition for a binder in inorganic fibres products
Claims (19)
1. An aqueous resin composition comprising a resin in water, which resin is a reaction product of an oxidised polysaccharide and a crosslinking agent, a) which oxidised polysaccharide is an oxidised cellulose comprising between 3 and 12.2 mmole of aldehyde groups per gram cellulose, b) which crosslinking agent comprises two or more groups reactive with the aldehyde groups, c) wherein the aldehyde groups in the resin in the aqueous resin composition are in hydrated or un-hydrated form and are at least partly converted to inter- or intramolecular hemiacetals, d) wherein the resin is dispersed and/or dissolved but not gelled.
2. The aqueous resin composition according to claim 1, wherein the oxidised polysaccharide is an oxidised cellulose comprising between 7.4 and 11.1 mmole of aldehyde groups per gram cellulose.
3. The aqueous resin composition according to claim 1, wherein the crosslinking agent is chosen from the group of sorbitol, glycerol, gallic acid, para-methoxy phenol, hydroxylamine hydrochloride, poly-isocyanates or polyamines.
4. The aqueous resin composition according to anyone of claims 1 – 3, having a resin solids content from 1 – 25 wt.% defined as the dry solids weight relative to the total weight of the dry resin solids and water.
5. The aqueous resin composition according to anyone of claims 1 – 4, having a viscosity from 4.5 to 10 mPa*s at a solid content from 5 wt.% to 8 wt.% measured at 20 °C in an Anton Paar rheometer in rotation mode at 200 s .
6. The aqueous resin composition according to anyone of claims 1 – 5, having a ratio in moles between aldehyde groups in the oxidised cellulose and crosslinking groups in the crosslinking agent from 10 to 0.1.
7. The aqueous resin composition according to anyone of claims 1 – 6, further comprising one or more of the components selected from the group of 20444606_1 (GHMatters) P119677.NZ a) organosilane compounds, b) hydrophobic agents, c) antimicrobial agents, d) flame retardants.
8. The aqueous resin composition according to anyone of claims 1 – 7, having a final pH from 7 to 3.
9. The aqueous resin composition according to anyone of claims 1 – 8, characterised by a wet tensile strength of at least 1 Mpa in a glass fibre binder test described in the application and/or preferably having a shelf stability defined as viscosity stability characterised by a viscosity between 4.5 to 10 mPa*s and substantially no sedimentation for a period of more than 1 week at temperature between 4 and 21°C.
10. A process for the preparation of the aqueous resin composition of anyone of claims 1 – 9, comprising the steps of a) Providing oxidised cellulose, b) Solubilising the oxidised cellulose in water at elevated temperature optionally followed by removing water or by diluting with water to bring the resulting amount of oxidised cellulose between 1 and 10 wt.% dry oxidised cellulose weight relative to the weight of the aqueous composition, c) adding the crosslinker, d) raising the temperature to allow the oxidised cellulose and the crosslinker to react and form the resin, e) Cooling, f) Optionally adjusting the water content to a resin concentration between 1 and 25 wt.% dry solid resin weight relative to the total aqueous composition weight, g) Optionally adding further additives, h) Optionally adjusting the pH range if needed to a final pH from 7 to 3.
11. The process of claim 10, wherein the oxidised cellulose comprises C2 and C3 aldehydes. 20444606_1 (GHMatters) P119677.NZ
12. The process of claim 10 comprising in step b) solubilising the oxidised cellulose in water at elevated temperature between 80 and 105°C in amount between 5 and 30 ml of water per gram of dry oxidised cellulose.
13. The process of claim 10 comprising in step c) adding the crosslinker in an amount resulting in a molar ratio between aldehyde groups in the oxidised cellulose and the crosslinking groups in the crosslinking agent between 10 to 0.1 and in step d) raising the temperature to allow the oxidised cellulose and the crosslinker to react and form the resin, at a temperature from 40°C to 90°C and at a pH between 2 and 5.
14. A process for the manufacture of fibre-based products comprising fibres and a binder comprising the steps of a) Contacting fibres with an aqueous resin composition of anyone of claims 1 – 9, for example by soaking or spraying, b) Forming the fibres to a fibre product before or after contacting step a), for example a parallel aligned -, knitted-, woven- or non-woven fibre layer, c) Drying and curing the aqueous resin composition to form the binder.
15. The process of claim 14, wherein the fibre-based products after curing contains between 1 and 20 wt.% of cured binder.
16. A fibre-based product obtained by a process according to claim 14.
17. A process for the manufacture of insulation materials, hydroponic growing media, filters, air filters, sheets or roof shingles comprising fibre-based products of claim 16.
18. A process for the manufacture of wood or wood-fibre based materials comprising providing the aqueous resin composition of any one of claims 1 – 9 as an adhesive for the wood or as a binder in wood fibre-based materials.
19. The process of claim 18 wherein the wood or wood-fibre based materials are MDF, fibreboard, wood laminate materials, laminate beams or multiplex. 20444606_1 (GHMatters) P119677.NZ
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20161303.1A EP3875490A1 (en) | 2020-03-05 | 2020-03-05 | Aqueous resin composition and use as binder in fibre-based products |
| PCT/EP2021/055657 WO2021176087A1 (en) | 2020-03-05 | 2021-03-05 | Aqueous resin composition and use as binder in fibre-based products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ792859A NZ792859A (en) | 2024-01-26 |
| NZ792859B2 true NZ792859B2 (en) | 2024-04-30 |
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