CN103849312A - Shellac for increasing heat resistance of varnish, and modification method thereof - Google Patents
Shellac for increasing heat resistance of varnish, and modification method thereof Download PDFInfo
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- CN103849312A CN103849312A CN201210495259.9A CN201210495259A CN103849312A CN 103849312 A CN103849312 A CN 103849312A CN 201210495259 A CN201210495259 A CN 201210495259A CN 103849312 A CN103849312 A CN 103849312A
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- Prior art keywords
- shellac
- varnish
- lac
- heating
- modified
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- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 title claims abstract description 103
- 239000002966 varnish Substances 0.000 title claims abstract description 71
- 229920001800 Shellac Polymers 0.000 title claims abstract description 64
- 239000004208 shellac Substances 0.000 title claims abstract description 64
- 229940113147 shellac Drugs 0.000 title claims abstract description 64
- 235000013874 shellac Nutrition 0.000 title claims abstract description 64
- 238000002715 modification method Methods 0.000 title abstract 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000004048 modification Effects 0.000 claims abstract description 35
- 238000012986 modification Methods 0.000 claims abstract description 35
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 20
- 239000008158 vegetable oil Substances 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 18
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 11
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 11
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 33
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- 235000011187 glycerol Nutrition 0.000 claims description 15
- 239000004922 lacquer Substances 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 235000006408 oxalic acid Nutrition 0.000 claims description 11
- 238000010792 warming Methods 0.000 claims description 11
- 229940059574 pentaerithrityl Drugs 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 235000019198 oils Nutrition 0.000 claims description 5
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- ZRIHAIZYIMGOAB-UHFFFAOYSA-N butabarbital Chemical compound CCC(C)C1(CC)C(=O)NC(=O)NC1=O ZRIHAIZYIMGOAB-UHFFFAOYSA-N 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- ZEMPKEQAKRGZGQ-AAKVHIHISA-N 2,3-bis[[(z)-12-hydroxyoctadec-9-enoyl]oxy]propyl (z)-12-hydroxyoctadec-9-enoate Chemical compound CCCCCCC(O)C\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CC(O)CCCCCC)COC(=O)CCCCCCC\C=C/CC(O)CCCCCC ZEMPKEQAKRGZGQ-AAKVHIHISA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 23
- 238000010276 construction Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 3
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 35
- 238000000576 coating method Methods 0.000 description 33
- 239000000463 material Substances 0.000 description 17
- 239000007788 liquid Substances 0.000 description 16
- 239000000203 mixture Substances 0.000 description 13
- 230000001680 brushing effect Effects 0.000 description 12
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 6
- 231100000252 nontoxic Toxicity 0.000 description 5
- 230000003000 nontoxic effect Effects 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000002383 tung oil Substances 0.000 description 5
- DXRKLUVKXMAMOV-UHFFFAOYSA-N 3-heptadecylcatechol Chemical compound CCCCCCCCCCCCCCCCCC1=CC=CC(O)=C1O DXRKLUVKXMAMOV-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 150000002780 morpholines Chemical class 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910017053 inorganic salt Inorganic materials 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000013268 sustained release Methods 0.000 description 3
- 239000012730 sustained-release form Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- -1 machinery Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHRZCXAVMTUTDD-UHFFFAOYSA-N 1h-furo[2,3-d]pyrimidin-2-one Chemical compound N1C(=O)N=C2OC=CC2=C1 WHRZCXAVMTUTDD-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241001516928 Kerria lacca Species 0.000 description 1
- 235000006173 Larrea tridentata Nutrition 0.000 description 1
- 244000073231 Larrea tridentata Species 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229940120693 copper naphthenate Drugs 0.000 description 1
- SEVNKWFHTNVOLD-UHFFFAOYSA-L copper;3-(4-ethylcyclohexyl)propanoate;3-(3-ethylcyclopentyl)propanoate Chemical compound [Cu+2].CCC1CCC(CCC([O-])=O)C1.CCC1CCC(CCC([O-])=O)CC1 SEVNKWFHTNVOLD-UHFFFAOYSA-L 0.000 description 1
- 229960002126 creosote Drugs 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- LDCRTTXIJACKKU-ONEGZZNKSA-N dimethyl fumarate Chemical compound COC(=O)\C=C\C(=O)OC LDCRTTXIJACKKU-ONEGZZNKSA-N 0.000 description 1
- 229960004419 dimethyl fumarate Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000004495 emulsifiable concentrate Substances 0.000 description 1
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000002728 pyrethroid Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- WSFQLUVWDKCYSW-UHFFFAOYSA-M sodium;2-hydroxy-3-morpholin-4-ylpropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN1CCOCC1 WSFQLUVWDKCYSW-UHFFFAOYSA-M 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229940075582 sorbic acid Drugs 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
Embodiments of the invention disclose a shellac for increasing heat resistance of a varnish. The main components of the shellac comprise, by weight, 40-50% of shellac, 3-7% of dry vegetable oil, 5-9% of glycerol, 10-20% of a rosin resin, 5-10% of pentaerythritol, and 10-15% of a modification promoter. Embodiments of the present invention further disclose a shellac modification method for increasing heat resistance of a varnish. The modification method comprises: stirring shellac and a rosin resin, dissolving into a diluent, taking a modification promoter and adding to the obtained solution, and heating until completely dissolving, wherein the heating temperature is 50-80 DEG C; adding dry vegetable oil, pentaerythritol and glycerol to the obtained mixed solution, stirring while heating to a temperature of 40-82 DEG C, and carrying out a reaction for 1-4 h to obtain a modified shellac solution; and preparing the modified shellac solution into the shellac varnish finished product. According to the present invention, the dry heat resistance and the wet-heat resistance of the shellac paint film can further be substantially increased, and no harm on the environment and the human body during the construction and use process is generated.
Description
Technical field
The present invention relates to a kind of lac, relate in particular to a kind of stable on heating lac of varnish and method of modifying thereof of improving.
Background technology
The feature of environmental protection of coating is a major subjects of wood lacquer industry.The surface protection major requirement material of timber provides good mechanical property, aesthetic property and weather etc.Woodwork coating is mainly used in Furniture manufacture and interior decoration.Wherein, furniture manufacturing industry is very important to woodwork coating industry.And in furniture manufacturing industry, outlet furniture is the engine of promotion industry.The market requirement is powerful.Meanwhile, the existing development that is beneficial to environment protecting paint for wooden articles of Domestic Environment.On June 1st, 2010, drafted " limits of harmful substances in indoor decorating and refurnishing materials solvent-borne type woodwork coating " national standard of formulation by national coating and Pigments Standardization Technical Committee and formally implement.Along with the strict enforcement of this standard, the market outlook of environment friendly wood coatings are very wide.
Lac (Shellac claims again shellac) is by the oozy a kind of natural resin of tachardia lacca, have nontoxic, electrical insulation capability good, binding property and thermoplastic are strong; The characteristics such as waterproof, protection against the tide, antirust, corrosion resistant, are widely used in the industries such as military affairs, electric, coating, paint, machinery, rubber, plastics, process hides, papermaking, medicine, food.Shellac varnish is dissolved in by shellac, white shellac (popular name shellac) or refined bleached lac the brown translucent or light yellow transparent liquid forming in ethanol.Dry rapidly after brushing, form and there is good hardness and electrical insulating property protective film, and can show bright color and luster through polishing grinding.Be mainly used in brushing woodenware and electrical apparatus insulation material.Shellac varnish uses the history of existing more than one thousand years as a kind of traditional wood lacquer, its consumption reaches peak in the eighties in last century.Because traditional shellac varnish is membranous more crisp, thermotolerance is also poor compared with synthetic coating with gasproof marquis property, unsuitable external application.Along with the appearance of synthetic coating, the feature of shellac varnish poor heat resistance makes the application of shellac varnish be turned and be declined by Sheng.Along with the raising of people's living standard, concern for the environment and self health, uphold nature has become a kind of fashion.Synthetic coating is progressively familiar with by people environmental protection and healthy hazardness.Lac base wood lacquer is except having good use properties, also given that lac product is natural, environmental protection, healthy excellent attribute.The application of the thermotolerance that how to improve shellac varnish to shellac varnish product and the development of lac base environment protecting paint for wooden articles industry have very important meaning.The present invention utilize dry vegetable oil, glycerine, Gum Rosin, tetramethylolmethane under the molten state of laccol in addition modification promotor varnish is carried out modification and the toughness of shellac varnish and thermotolerance is largely increased with lac.Pressing GBT 4893.3-2005 " furniture surface dry heat resistance assay method ", GB/T 4893.2-2005 " furniture surface wet-heat resisting assay method " through quality product research institute of Yunnan Province detects, utilize compared with the varnish that varnish that modified shellac that the present invention produces makes and common lac make, dry heat resistance performance improves 12-25%, and wet-hot aging performance improves 10-28%.
The research and development of lac modification technology are focuses of current lac application technical research.Have through the close patent that existing literature search is found: 1) patent of invention number: CN100415840C, denomination of invention: the method for environment friendly coated layer material is prepared in a kind of lac modification.Object is to provide a kind of method that environment friendly coated layer material is prepared in lac modification, form crosslinking structure by chemical reaction and improve the physical and mechanical properties of lac, add into sustained release dosage, inorganic salt and prepared by environmentally friendly thinner to the method for environment friendly coated layer material.And make material construction and use procedure in to environment and body harmless.The Basic Mechanism of this invention is that the multiple carboxyl reaction in multi-functional organic amine and lac forms amido linkage and reaches crosslinked object.The object that the mechanical property that the formation of cross-linked structure has improved lac reaches material protection has improved simultaneously and has stoped the erosional competency of extraneous factor to metallic surface; Amido linkage can improve the cohesive force at lac and interface and to metallic substance resistance to corrosion, add thinner and inorganic salt etc. that the Corrosion Protection of modified shellac is had further and significantly improve.Aggregation, the aggregation of this invention add inorganic salt face with sustained release dosage or aggregation with sustained release dosage and mix, and obtain the coated material of different components, are applied to the non-ferrous metal surfaces such as timber, copper and alloy, aluminum magnesium alloy and have good protection preservative effect.This material can solid or solution state store, stable performance.The coating of being prepared by this material, take non-benzene homologues solvent as thinner, belongs to environment friendly coated layer material.But the thermotolerance that how to improve shellac varnish by adding softening agent and modification promotor is not related to.2) number of patent application: 200810117661.7 denominations of invention: shellac varnish; The invention provides that a kind of preparation method is simple, nontoxic pollution-free, shellac varnish that result of use is good.For reaching above-mentioned technical requirements, shellac varnish involved in the present invention adopts following technical scheme: main raw material composition of the present invention comprises: shellac, solvent etc.This patent institute description technique is that shellac is dissolved in 95% ethanol and makes shellac varnish, belongs to typical shellac varnish traditional manufacturing technique, poor heat resistance.3) number of patent application: 00123626.1 denomination of invention: a kind of production method of lacquer, invention relates to a kind of production method of lacquer, natural shellac varnish is milled into 50-200 object powder, after lacquer powder is mixed with hydrogen peroxide liquid, put at 10 ℃ of-80 ℃ of temperature of airtight Glass Containers what and carry out dip treating 4-300 hour, 10 milliliters of-100 milliliters of hydrogen peroxide liquid of every 10 grams of lacquer powder mixtures, dry the lacquer taking-up after dip treating to can be made into red lacquer, look lacquer or colourless lacquer.The thermotolerance that improves shellac varnish by modification technology to how does not but relate to.4) number of patent application: 01112705.8 denomination of invention: printing paint for protecting wooden articles, a kind of printing paint for protecting wooden articles, comprise protective liquid and bottom closing paint, protective liquid is by ethanol, phosphorothionate, dimethyl fumarate, Sorbic Acid, creosote and lac bar mix and blend composition, bottom closing paint is by medium-oil-length Semen Lini oil modified alkyd resin, No. 200 industrial napthas, dimethylbenzene, zinc naphthenate, cobalt naphthenate, copper naphthenate and pyrethroid emulsifiable concentrate mix and blend composition, by protective liquid brushing in wood substrates, protective liquid can play the effect of pest control and anticorrosion, then by bottom closing paint brushing on timber, bottom closing paint can be enclosed in each composition in protective liquid in timber, keep the effect of pest control and anticorrosion.The thermotolerance that improves shellac varnish by modification technology to how does not but relate to.5) number of patent application: 201110197401.7 denominations of invention: a kind of aqueous bottom coating for wood products.Invention provides a kind of aqueous bottom coating for wood products, the weight percent of the each component of its constitutive material is: potter's clay powder 6.134-7.535%, calcium carbonate 14.45-17.45%, shellac 0.416-0.498%, animal skin glue 4.156-4.956%, pure water 65.391-71.261%, alcohol 1.495-1.695%, sticky rice flour 2.078-2.478%.Aqueous bottom coating for wood products of the present invention has contamination-free, has no irritating odor, nontoxic, avoided the formaldehyde hidden danger in common coating, flatness is high, construction easily; adhesivity is strong, and flame retardant resistance is high, the high protective layer that easily forms of coating hardness; there is quick-drying, the feature of not after-tacking simultaneously.The thermotolerance that improves shellac varnish by modification technology to how does not but relate to.6) number of patent application: 201110197398.9 denominations of invention: a kind of aqueous surface coating for wood products.Invention provides a kind of aqueous surface coating for wood products, and the weight percent of the each component of its constitutive material is: potter's clay powder 24.286-29.286%, shellac 0.813-0.973%, animal skin glue 5.452-6.452%, water 56.524-62.524%, alcohol 1.388-1.588%, starch 4.857-5.857%.Aqueous surface coating for wood products of the present invention has contamination-free, has no irritating odor, nontoxic, avoided the formaldehyde hidden danger in common coating, flatness is high, construction easily; adhesivity is strong, and flame retardant resistance is high, the high protective layer that easily forms of coating hardness; there is quick-drying, the feature of not after-tacking simultaneously.The thermotolerance that improves shellac varnish by modification technology to how does not but relate to.7) number of patent application: 201110197399.3 denominations of invention: a kind of wood-product aqueous crack coating material.Invention provides a kind of wood-product aqueous crack coating material, and the weight percent of the each component of its constitutive material is: flatting silica 7.139-9.439%, shellac 1.910-2.310%, alcohol 79.388-86.388%, sticky rice flour 4.46-5.56%.Wood-product aqueous crack coating material of the present invention has contamination-free, has no irritating odor, nontoxic, avoided the formaldehyde hidden danger in common coating, plasticity-is high, construction easily, has quick-drying simultaneously, environmental protection is harmless in construction.The thermotolerance that improves shellac varnish by modification technology to how does not but relate to.8) number of patent application: 201010039147.3 denominations of invention: modified shellac fruit coating agent of anti-hickie and preparation method thereof.Invention provides modified shellac fruit coating agent of a kind of anti-hickie and preparation method thereof.Component by following mass parts forms: 10～25 parts of modified shellac resin, 75～90 parts of the solvents that mass concentration is 8～13%; Preparation method is: first basic group polymkeric substance is sneaked in sclerolac, then mixture is added in solvent, heated and stirred is to dissolving completely; Fumaric acid siccative oil is joined in above-mentioned gained mixture by the amount of 0.1～2 times of sclerolac quality, obtain modified shellac resin; The solvent that is 8～13% with mass concentration by modified shellac resin mixes by above-mentioned mass parts, regulates pH value to 7～9, obtains the modified shellac fruit coating agent of anti-hickie.This invention adopts polymkeric substance and the fumaric acid siccative oil modified shellac containing basic group, and sealing lac carboxyl and hydroxyl make it to lose the chance that esterification occurs and produce cross linkage, thereby avoid rete to occur hickie under high temperature, high humidity environment.Lac method of modifying and the present invention of this invention has essence different, and the thermotolerance that improves shellac varnish by modification technology to how does not but relate to.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of stable on heating lac of varnish of improving is provided,
Content according to weight percent major ingredient is as follows: lac 40-50%; Dry vegetable oil 3-7%; Glycerine 5-9%; Gum Rosin 10-20%; Tetramethylolmethane 5-10%; Modification promotor 10-15%.
Wherein, described modification promotor is the one in morpholine, urea, thiocarbamide, borax, dicarboxylic acid or dicarboxylic anhydride.
Described lac is that white shellac, refining refined bleached lac, dewaxing lac or hot ethanol insolubles are less than the one in 1% sheet or grain lac.
Described Gum Rosin is mainly the one in gum resin, staybelite, modified rosin, nilox resin, polymerized rosin.
Described dry vegetable oil is the one in Viscotrol C, oleum lini or the boiled wood oil boiling through heating.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of method of modifying that improves the stable on heating lac of varnish, comprises the steps:
(a), lac, Gum Rosin are stirred and are dissolved in thinner, then get modification promotor add in solution and heating until all dissolve, Heating temperature is 50-80 ℃;
(b), in above-mentioned mixing solutions, add dry vegetable oil, tetramethylolmethane and glycerine, warming while stirring is to 40-82 ℃, reaction 1-4 hour obtains the shellac solution of modification;
(c), the shellac solution of modification is made to shellac varnish finished product.
Wherein, the method for making shellac varnish in described c step is: when modified shellac solution is cooled to 30-56 ℃, add obtaining property of the oxalic acid shellac varnish finished product of 0.1-5%.
The method of making shellac varnish in described c step is: cold modified shellac solution distillating recovering solvent is obtained to modified shellac solid, obtain modified shellac through compressing tablet or granulation, be diluted to the modified shellac varnish of 6-51% when use with thinner.
The method of making shellac varnish in described c step is: add the weighting agent of solution weight 0.1-10% and pigment to stir 1-2 hour modified shellac solution, make environment-friendly modified lacquer.
Described weighting agent is the one in barium sulfate, calcium carbonate, titanium dioxide or carbon black
Implement the embodiment of the present invention, there is following beneficial effect:
Basic Mechanism of the present invention is multi-functional filmogen dry vegetable oil, rosin, tetramethylolmethane is miscible in laccol solution, hydroxyl generation esterification in carboxyl ethanol in lac obtains carboxylate, add properties-correcting agent glycerine and the modification promotor of improving lac toughness to make the multiple carboxyl reaction in lac molecule form the interaction force between group, modification promotor is played the crosslinked effect that impels chemistry or physics, dry vegetable oil, rosin, the toughness that the plastification of tetramethylolmethane and the formation of cross-linked structure have improved lac paint film has improved the temperature capacity of lac paint film simultaneously, make dry heat resistance performance and the wet-hot aging performance of lac paint film have further significantly raising.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below will by embodiment, the present invention is described in further detail.
example 1. under stirring, 20 grams of lacs, 6 grams of gum resin are dissolved in 100 gram of 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve; Add 2 grams of dry vegetable oil tung oil, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams of modification promotor morpholines and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Dry heat resistance temperature is 84 ℃, and wet-heat resisting hot temperature degree is 76 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 2. under stirring, 20 grams of lacs, 6 grams of staybelite resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 3 grams of dry vegetable oil oleum lini, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams, modification promotor urea and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Dry heat resistance temperature is 87 ℃, and wet-heat resisting temperature is 75 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 3. under stirring, 20 grams of lacs, 6 grams of toxilic acid modified rosin pentaerythritol resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 2 grams of dry vegetable oil tung oil, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams, modification promotor urea and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Dry heat resistance temperature is 90 ℃, and wet-heat resisting temperature is 78 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 4. under stirring, 20 grams of lacs, 6 grams of toxilic acid modified rosin resins are dissolved in 100 gram of 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve; Add 2 grams of dry vegetable oil tung oil, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams of modification promotor morpholines and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 92 ℃, and wet-heat resisting hot temperature degree is 83 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 5. under stirring, 20 grams of lacs, 6 grams of nilox resin resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 3 grams of dry vegetable oil oleum lini, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams, modification promotor urea and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 93 ℃, and wet-heat resisting hot temperature degree is 84 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 6. under stirring, 20 grams of lacs, 6 grams of toxilic acid modified rosin pentaerythritol resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 2 grams of dry vegetable oil tung oil, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams, modification promotor urea and add heating in solution until all dissolve, react 1 ~ 4 hour, obtain modified shellac solution, the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 95 ℃, and wet-heat resisting hot temperature degree is 84 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 7. under stirring, 20 grams of lacs, 6 grams of gum resin are dissolved in 100 gram of 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve; Add 2 grams of dry vegetable oil tung oil, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams of modification promotor thiocarbamides and add heating in solution until all dissolve, react the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃ 1 ~ 4 hour; This liquid is directly coated on smooth plank by brushing, and room temperature is placed 24 hours, obtains thickness and be the coating of 2 microns.Put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 93 ℃, and wet-heat resisting hot temperature degree is 82 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 8.under stirring, 20 grams of lacs, 6 grams of staybelite resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 3 grams of dry vegetable oil oleum lini, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams of modification promotor morpholines and add heating in solution until all dissolve the modified shellac varnish finished product that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; React 1 ~ 4 hour, obtain modified shellac solution, this liquid is directly coated on smooth plank by brushing, room temperature is placed 16 hours, obtains thickness and be the coating of 2 microns.Put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 95 ℃, and wet-heat resisting hot temperature degree is 85 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
example 9.under stirring, 20 grams of lacs, 6 grams of staybelite resins are dissolved in 100 grams of thinner 95% alcohol, Heating temperature is 50 ~ 80 ℃, until all dissolve.Add 3 grams of dry vegetable oil oleum lini, 3 grams of tetramethylolmethanes, 3 grams of glycerine, warming while stirring to 40 ~ 82 ℃, get 5 grams of modification promotor morpholines and add heating in solution until all dissolve the modified shellac solution that adds 0.1 ~ 5% oxalic acid to obtain while being cooled to 30-56 ℃; Stirring adds the weighting agent light calcium carbonate and 2% charcoal blacks that are equivalent to lac 3% to stir 2 hours; Directly use as environment-friendly modified lacquer.After paint film natural air drying, put into 110 ℃ of baking oven bakings 2 hours, dry heat resistance temperature is 91 ℃, and wet-heat resisting hot temperature degree is 83 ℃.The shellac varnish paint film of non-modified on year-on-year basis, dry heat resistance temperature is 75 ℃, wet-heat resisting hot temperature degree is 65 ℃.
Above disclosed is only a kind of preferred embodiment of the present invention, can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (10)
1. improve the stable on heating lac of varnish, it is characterized in that, as follows according to the content of weight percent major ingredient: lac 40-50%; Dry vegetable oil 3-7%; Glycerine 5-9%; Gum Rosin 10-20%; Tetramethylolmethane 5-10%; Modification promotor 10-15%.
2. a kind of stable on heating lac of varnish of improving according to claim 1, is characterized in that, described modification promotor is the one in morpholine, urea, thiocarbamide, borax, dicarboxylic acid or dicarboxylic anhydride.
3. a kind of stable on heating lac of varnish of improving according to claim 1, is characterized in that, described lac is that white shellac, refining refined bleached lac, dewaxing lac or hot ethanol insolubles are less than the one in 1% sheet or grain lac.
4. a kind of stable on heating lac of varnish of improving according to claim 1, is characterized in that, described Gum Rosin is mainly the one in gum resin, staybelite, modified rosin, nilox resin, polymerized rosin.
5. a kind of stable on heating lac of varnish of improving according to claim 1, is characterized in that, described dry vegetable oil is the one in Viscotrol C, oleum lini or the boiled wood oil boiling through heating.
6. the one as described in claim 1-5 any one improves the stable on heating lac method of modifying of varnish, it is characterized in that, comprises the steps:
(a) lac, Gum Rosin are stirred and are dissolved in thinner, then get modification promotor add in solution and heating until all dissolve, Heating temperature is 50-80 ℃;
(b) in above-mentioned mixing solutions, add dry vegetable oil, tetramethylolmethane and glycerine, warming while stirring, to 40-82 ℃, is reacted 1-4 hour, obtains the shellac solution of modification;
(c) shellac solution of modification is made to shellac varnish finished product.
7. a kind of stable on heating lac method of modifying of varnish that improves according to claim 6, it is characterized in that, the method of making shellac varnish in described c step is: when modified shellac solution is cooled to 30-56 ℃, add obtaining property of the oxalic acid shellac varnish finished product of 0.1-5% by weight percentage.
8. a kind of stable on heating lac method of modifying of varnish that improves according to claim 6, it is characterized in that, the method of making shellac varnish in described c step is: cold modified shellac solution distillating recovering solvent is obtained to modified shellac solid, obtain modified shellac through compressing tablet or granulation, when use, be diluted to the modified shellac varnish of 6-51% with thinner.
9. a kind of stable on heating lac method of modifying of varnish that improves according to claim 6, it is characterized in that, the method of making shellac varnish in described c step is: add the weighting agent of solution weight 0.1-10% and pigment to stir 1-2 hour modified shellac solution, make environment-friendly modified lacquer.
10. a kind of stable on heating lac method of modifying of varnish that improves according to claim 9, is characterized in that, described weighting agent is the one in barium sulfate, calcium carbonate, titanium dioxide or carbon black.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104893576A (en) * | 2015-06-10 | 2015-09-09 | 中国林业科学研究院资源昆虫研究所 | Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish |
| EP3272822A1 (en) | 2016-07-21 | 2018-01-24 | Marco Marzagalli | Composition of varnishes for graphic arts formulated with substances used in the food sector |
| CN108467678A (en) * | 2018-03-16 | 2018-08-31 | 铜陵学院 | A kind of coating for Chinese zither panel |
| CN114790365A (en) * | 2021-01-26 | 2022-07-26 | 五峰赤诚生物科技股份有限公司 | Tannin/furfural-shellac resin anticorrosive paint and preparation method thereof |
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| CN101643626A (en) * | 2008-08-04 | 2010-02-10 | 北京科技桥科贸有限公司 | Shellac varnish |
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| US4240939A (en) * | 1979-02-21 | 1980-12-23 | Sam Kostic | Wood finishing composition |
| CN1339548A (en) * | 2000-08-25 | 2002-03-13 | 韩京生 | Process for producing shellac paint |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893576A (en) * | 2015-06-10 | 2015-09-09 | 中国林业科学研究院资源昆虫研究所 | Shellac varnish containing biological insect-resist agent azadirachtin and preparation method of shellac varnish |
| EP3272822A1 (en) | 2016-07-21 | 2018-01-24 | Marco Marzagalli | Composition of varnishes for graphic arts formulated with substances used in the food sector |
| CN108467678A (en) * | 2018-03-16 | 2018-08-31 | 铜陵学院 | A kind of coating for Chinese zither panel |
| CN114790365A (en) * | 2021-01-26 | 2022-07-26 | 五峰赤诚生物科技股份有限公司 | Tannin/furfural-shellac resin anticorrosive paint and preparation method thereof |
| CN114790365B (en) * | 2021-01-26 | 2023-01-31 | 五峰赤诚生物科技股份有限公司 | Tannin/furfural-shellac resin anticorrosive paint and preparation method thereof |
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