CN116694263A - Hot melt adhesive for mattress springs and preparation method thereof - Google Patents
Hot melt adhesive for mattress springs and preparation method thereof Download PDFInfo
- Publication number
- CN116694263A CN116694263A CN202310597279.5A CN202310597279A CN116694263A CN 116694263 A CN116694263 A CN 116694263A CN 202310597279 A CN202310597279 A CN 202310597279A CN 116694263 A CN116694263 A CN 116694263A
- Authority
- CN
- China
- Prior art keywords
- hot melt
- parts
- melt adhesive
- stirring
- mattress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004831 Hot glue Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 12
- 230000001050 lubricating effect Effects 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 60
- 238000006243 chemical reaction Methods 0.000 claims description 38
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 26
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 19
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- 239000008187 granular material Substances 0.000 claims description 18
- 229920005862 polyol Polymers 0.000 claims description 16
- 150000003077 polyols Chemical class 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 14
- LRMSQVBRUNSOJL-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)F LRMSQVBRUNSOJL-UHFFFAOYSA-N 0.000 claims description 13
- KQIGMPWTAHJUMN-UHFFFAOYSA-N 3-aminopropane-1,2-diol Chemical compound NCC(O)CO KQIGMPWTAHJUMN-UHFFFAOYSA-N 0.000 claims description 13
- 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 description 13
- GKQLYSROISKDLL-UHFFFAOYSA-N EEDQ Chemical compound C1=CC=C2N(C(=O)OCC)C(OCC)C=CC2=C1 GKQLYSROISKDLL-UHFFFAOYSA-N 0.000 claims description 13
- 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 description 13
- 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 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 239000011787 zinc oxide Substances 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 230000032683 aging Effects 0.000 abstract description 13
- 238000012360 testing method Methods 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 14
- 239000001993 wax Substances 0.000 description 13
- 235000019645 odor Nutrition 0.000 description 11
- 230000014759 maintenance of location Effects 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 125000005456 glyceride group Chemical group 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004614 Process Aid Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- -1 glycerin ester Chemical class 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
- C09J193/04—Rosin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a hot melt adhesive for mattress springs, which is prepared from the following raw materials in parts by weight: 33-36 parts of tackifying resin, 12-18 parts of PB resin, 34-38 parts of polyolefin elastomer POE and 14-16 parts of lubricating wax. The invention also provides a preparation method of the hot melt adhesive for the mattress spring. The hot melt adhesive for the mattress spring provided by the invention has small smell and good ageing resistance, adhesion performance and cold resistance.
Description
Technical Field
The invention relates to a hot melt adhesive, in particular to a hot melt adhesive for a mattress spring and a preparation method thereof.
Background
The hot melt adhesive for mattress springs is a plastic adhesive, and the physical state of the hot melt adhesive is changed along with the change of temperature within a certain temperature range, and the hot melt adhesive has unchanged chemical properties, is nontoxic and has smell. The hot melt adhesive for mattress springs is prepared by melting the hot melt adhesive by a hot melt adhesive machine through heating, forming a liquid by the melted adhesive, delivering the liquid to the surface of an object to be bonded through a special tool, and cooling the hot melt adhesive to finish bonding. The hot melt adhesive for mattress springs which is frequently used at present is mostly prepared from ethylene-vinyl acetate, polyester, polyamide and the like and hot melt resin, a large amount of VOC waste gas is discharged in the production process of the hot melt adhesive for mattress spring splicing, and the produced hot melt adhesive product for mattress springs has smell and poor ageing resistance (easy to change color), and the smell and ageing resistance have great influence on the experience of consumers.
Chinese patent application CN202210880010.3 discloses an environment-friendly hot melt adhesive for spring mattresses and a preparation method thereof, wherein the raw materials per 100 parts by weight are as follows: 40-60 parts of polyolefin resin; 15-25 parts of polyester polyol; 8-10 parts of 2, 6-di-tert-butyl-p-cresol; 15-20 parts of nylon type copolyamide; 1-2 parts of aliphatic dicarboxylic acid; 1-3 parts of other auxiliary agents; the polyester polyol has a number average molecular weight of 3000. The environment-friendly hot melt adhesive for the spring mattress has the advantages of improved adhesive strength, smell and unsatisfactory ageing resistance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the hot melt adhesive for the mattress spring, which has smaller smell and better ageing resistance, adhesion performance and cold resistance.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a hot melt adhesive for mattress springs is prepared from the following raw materials in parts by weight: 33-36 parts of tackifying resin, 12-18 parts of PB resin, 34-38 parts of polyolefin elastomer POE and 14-16 parts of lubricating wax.
Further, the invention is prepared from the following raw materials in parts by weight: 35 parts of tackifier, 15 parts of PB resin, 35 parts of polyolefin elastomer POE and 15 parts of lubricating wax.
Further, the tackifying resin of the invention is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, stirring at normal temperature in a dark place for reaction for 15-17 hours to obtain a reaction solution, vacuum evaporating the reaction solution to remove a solvent to obtain a solid, washing the solid with diethyl ether for 3 times, and vacuum drying until the weight is constant to obtain polyol for later use;
A2. and C, adding rosin, the polyol obtained in the step A1 and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 6-8 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
Further, in the step A1, the ratio of 3-amino-1, 2-propanediol, pentafluoropropionic acid, methanol, dichloromethane, 2-ethoxy-1, 2-dihydro-1-quinolinecarboxylic acid ethyl ester is 1mol:1mol:200mL:300mL:0.02mol; in step A2, the ratio of rosin, polyol obtained in step A1, and zinc oxide was 1mol:4mol:0.55g.
Further, the lubricating wax of the present invention is a Fischer Tropsch wax.
The invention provides a preparation method of the hot melt adhesive for the mattress spring.
In order to solve the technical problems, the technical scheme is as follows:
a preparation method of hot melt adhesive for mattress springs comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle, and stirring for 5-10 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress springs.
Further, in the step B1 of the present invention, the stirring speed of the stirrer was 200 rpm.
Further, in the step B2, the heating temperature of the machine barrel of the double-screw extruder is 150-160 ℃ and the rotating speed of the screw is 40 revolutions per minute.
Compared with the prior art, the invention has the following beneficial effects:
1) According to the invention, 3-amino-1, 2-propylene glycol and pentafluoropropionic acid react under the catalysis of 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester to prepare fluorine-containing polyol, and then the fluorine-containing polyol and rosin react under the catalysis of zinc oxide to prepare tackifying resin.
2) The PB resin used in the invention is a polymer complex synthesized from butene-1, has the advantages of light weight, good flexibility, no toxicity and smell, and excellent heat stability and ageing resistance, so that the heat resistance and ageing resistance of the hot melt adhesive for the mattress spring can be effectively improved, and the smell of the hot melt adhesive for the mattress spring is reduced.
3) The polyolefin elastomer POE used in the invention refers to an ethylene/alpha-olefin copolymer elastomer with the mass fraction of alpha-olefin being more than 20%, has no peculiar smell, has certain crystallinity and lower density and viscosity, can be used as a process aid or a viscosity improver in extrusion and molding applications, enhances the fluidity, can further reduce the smell of the hot melt adhesive for mattress springs, and improves the toughness of the hot melt adhesive for mattress springs.
4) The molecular weight of the Fischer-Tropsch wax used in the invention is far lower than that of common paraffin wax, the branched chain is less, the crystallinity is high, the Fischer-Tropsch wax is easy to permeate into a high-viscosity macromolecular chain, the melt viscosity can be reduced, the mobility is small in the processing process, the later lubrication effect is obvious, and the heat resistance and the ageing resistance of the hot melt adhesive for the mattress spring can be further improved.
Detailed Description
The present invention will be described in detail with reference to specific examples, wherein the exemplary embodiments of the present invention and the descriptions thereof are provided for the purpose of illustrating the present invention, but are not to be construed as limiting the present invention.
Example 1
The hot melt adhesive for the mattress spring is prepared from the following raw materials in parts by weight: 35 parts of tackifier, 15 parts of PB resin, 35 parts of polyolefin elastomer POE and 15 parts of Fischer-Tropsch wax.
Wherein the tackifying resin is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol, methylene dichloride and 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester in the ratio of 1mol to 200mL to 300mL, and carrying out light-shielding stirring reaction for 16 hours at normal temperature to obtain a reaction solution, evaporating the solvent in vacuum to obtain a solid, washing the solid with diethyl ether for 3 times, and then carrying out vacuum drying until the weight is constant to obtain polyol for later use;
A2. and (3) adding 1 mol/4 mol/0.55 g of rosin, the polyol obtained in the step (A1) and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 7 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
The preparation method of the hot melt adhesive for the mattress spring comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle with the stirring speed of 200 rpm, and stirring for 8 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, then transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress spring, wherein the heating temperature of a machine barrel of the double-screw extruder is 155 ℃, and the rotating speed of a screw is 40 revolutions per minute.
Example 2
The hot melt adhesive for the mattress spring is prepared from the following raw materials in parts by weight: 36 parts of tackifier, 12 parts of PB resin, 36 parts of polyolefin elastomer POE and 14.5 parts of Fischer-Tropsch wax.
Wherein the tackifying resin is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol, methylene dichloride and 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester in the ratio of 1mol to 200mL to 300mL, and carrying out light-shielding stirring reaction for 15 hours at normal temperature to obtain a reaction solution, evaporating the solvent in vacuum to obtain a solid, washing the solid with diethyl ether for 3 times, and then carrying out vacuum drying until the weight is constant to obtain polyol for later use;
A2. and (3) adding 1 mol/4 mol/0.55 g of rosin, the polyol obtained in the step (A1) and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 6 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
The preparation method of the hot melt adhesive for the mattress spring comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle with the stirring speed of 200 rpm, and stirring for 6 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, then transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress spring, wherein the heating temperature of a machine barrel of the double-screw extruder is 155 ℃, and the rotating speed of a screw is 40 revolutions per minute.
Example 3
The hot melt adhesive for the mattress spring is prepared from the following raw materials in parts by weight: 34 parts of tackifier, 16 parts of PB resin, 34 parts of polyolefin elastomer POE and 16 parts of Fischer-Tropsch wax.
Wherein the tackifying resin is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol, methylene dichloride and 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester in the ratio of 1mol to 200mL to 300mL, and carrying out light-shielding stirring reaction for 17 hours at normal temperature to obtain a reaction solution, evaporating the solvent in vacuum to obtain a solid, washing the solid with diethyl ether for 3 times, and then carrying out vacuum drying until the weight is constant to obtain polyol for later use;
A2. and (3) adding 1 mol/4 mol/0.55 g of rosin, the polyol obtained in the step (A1) and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 8 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
The preparation method of the hot melt adhesive for the mattress spring comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle with the stirring speed of 200 rpm, and stirring for 5 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, then transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress spring, wherein the heating temperature of a machine barrel of the double-screw extruder is 160 ℃, and the rotating speed of a screw is 40 revolutions per minute.
Example 4
The hot melt adhesive for the mattress spring is prepared from the following raw materials in parts by weight: 33 parts of tackifier, 18 parts of PB resin, 38 parts of polyolefin elastomer POE and 14 parts of Fischer-Tropsch wax.
Wherein the tackifying resin is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol, methylene dichloride and 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester in the ratio of 1mol to 200mL to 300mL, and carrying out light-shielding stirring reaction for 16 hours at normal temperature to obtain a reaction solution, evaporating the solvent in vacuum to obtain a solid, washing the solid with diethyl ether for 3 times, and then carrying out vacuum drying until the weight is constant to obtain polyol for later use;
A2. and (3) adding 1 mol/4 mol/0.55 g of rosin, the polyol obtained in the step (A1) and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 8 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
The preparation method of the hot melt adhesive for the mattress spring comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle with the stirring speed of 200 revolutions per minute, and stirring for 10 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, then transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress spring, wherein the heating temperature of a machine barrel of the double-screw extruder is 150 ℃, and the rotating speed of a screw is 40 revolutions per minute.
Reference example 1:
the difference from example 1 is that: the tackifying resin in the raw materials is replaced by rosin glyceride formed by esterification of rosin and glycerol, so that the preparation step of the tackifying resin is omitted.
Reference example 2:
the difference from example 1 is that: PB resin was absent from the feedstock.
Reference example 3:
the difference from example 1 is that: polyolefin elastomer POE is absent from the feedstock.
Reference example 4:
the difference from example 1 is that: the Fischer-Tropsch wax in the feed is replaced by paraffin wax.
Comparative example: example 1 of chinese patent application No. CN 202210880010.3.
Test example 1: odor test
The testing method comprises the following steps: the hot melt adhesives prepared in examples 1 to 4, reference examples 2 to 3 and comparative examples were placed in an oven at 80℃for 2 hours, and after taking out and cooling to 60℃5 testers were allowed to score the odor of the hot melt adhesive, and the average of the scores was used as a test result.
Scoring grade: 1, no peculiar smell; 2, slightly smelling; 3, tasty, but not irritating; 4, having a pungent odor; 5, strong pungent odor; 6, intolerable odors.
Lower odor scores indicate less odor and test results are shown in table 1:
TABLE 1
| Smell scoring | |
| Example 1 | 1.4 |
| Example 2 | 2 |
| Example 3 | 1.6 |
| Example 4 | 1.8 |
| Reference example 2 | 2.6 |
| Reference example 3 | 2.4 |
| Comparative example | 3 |
As can be seen from Table 1, the odor scores of examples 1-4 of the present invention were all lower than that of the comparative examples, indicating that the hot melt adhesives for mattress springs prepared according to the present invention were less odor. The difference between the raw materials of reference examples 2 and 3 and that of example 1 is that the odor scores of reference examples 2 and 3 are both raised compared with example 1, which shows that the PB resin and polyolefin elastomer POE used in the invention can effectively reduce the odor of the hot melt adhesive for mattress springs.
Test example 2: heat resistance test
The hot melt adhesives prepared in examples 1 to 4, reference example 2, reference example 4 and comparative example were tested by the ring and ball method with reference to GB/T15333-1994 softening points, respectively, and higher softening points indicate better heat resistance, and the test results are shown in Table 2:
TABLE 2
As can be seen from Table 2, the softening points of examples 1 to 4 of the present invention are all higher than those of the comparative examples, which shows that the heat resistance of the hot melt adhesives for mattress springs prepared by the present invention is better. The difference between the raw materials of reference examples 2 and 4 and that of example 1 is that the softening points of reference examples 2 and 4 are both reduced compared with example 1, which shows that the PB resin and Fischer-Tropsch wax used in the invention can effectively improve the heat resistance of the hot melt adhesive for mattress springs.
Test example 3: adhesion Performance test
The hot melt adhesives prepared in examples 1 to 4, reference example 1 and comparative example were tested for 180℃peel strength, respectively, with reference to GB/T2792-1998, with higher 180℃peel strength indicating better adhesion performance, and the test results shown in Table 3:
TABLE 3 Table 3
| 180 degree peel strength (N/cm) | |
| Example 1 | 4.0 |
| Example 2 | 4.2 |
| Example 3 | 3.9 |
| Example 4 | 3.8 |
| Reference example 1 | 3.3 |
| Comparative example | 1.2 |
As can be seen from Table 3, the 180℃peel strength of examples 1 to 4 of the present invention was higher than that of the comparative example, indicating that the adhesive properties of the hot melt adhesives for mattress springs prepared by the present invention were good. The difference between the raw materials and the production steps of reference example 1 and those of example 1 is that 180 ° peel strength of reference example 1 is reduced as compared with example 1, which means that the tackifying resin used in the present invention has a better effect of improving the adhesive property of the hot melt adhesive for mattress springs as compared with rosin glycerin ester.
Test example 4: anti-aging test
The hot melt adhesives prepared in examples 1 to 4, reference example 2, reference example 4 and comparative example were placed in an oven at 200℃for 10 hours, and after taking out, 180℃peel strength after aging was measured according to the method of test example 3, and a peel strength retention A was calculated, wherein the peel strength retention A=180℃peel strength after aging/original 180℃peel strength×100%, and the original 180℃peel strength was 180℃peel strength measured in test example 3.
The higher the peel strength retention a indicates better aging resistance, and the test results are shown in table 4:
TABLE 4 Table 4
| Peel strength retention A (%) | |
| Example 1 | 91.3 |
| Example 2 | 91.0 |
| Example 3 | 91.6 |
| Example 4 | 91.4 |
| Reference example 1 | 89.5 |
| Reference example 2 | 89.8 |
| Comparative example | 89.1 |
As can be seen from Table 4, the peel strength retention A of examples 1 to 4 of the present invention is higher than that of the comparative example, showing that the hot melt adhesives for mattress springs prepared by the present invention have good aging resistance. The difference between the raw materials of reference examples 2 and 4 and that of example 1 is that the peel strength retention A of reference examples 2 and 4 is reduced compared with that of example 1, which shows that the PB resin and Fischer-Tropsch wax used in the invention can effectively improve the ageing resistance of the hot melt adhesive for mattress springs.
Test example 5: cold resistance test
The hot melt adhesives prepared in examples 1 to 4, reference example 1 and comparative example were placed in a freezer at-20℃for 24 hours, and after taking out, the low temperature 180℃peel strength was measured according to the method of test example 3, and the peel strength retention B was calculated as peel strength retention B=180℃peel strength at low temperature/original 180℃peel strength×100%, and the original 180℃peel strength was 180℃peel strength measured in test example 3.
The higher the peel strength retention B indicates better cold resistance, and the test results are shown in table 5:
TABLE 5
As can be seen from Table 5, the peel strength retention B of the invention in examples 1-4 is higher than that in the comparative example, which shows that the hot melt adhesive for mattress springs prepared by the invention has better cold resistance. The difference between the raw materials and the preparation steps of reference example 1 and those of example 1 is that the peel strength B of reference example 1 is reduced as compared with example 1, which means that the tackifying resin used in the present invention has a better effect of improving the cold resistance of the hot melt adhesive for mattress springs than that of rosin glyceride.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. A hot melt adhesive for mattress springs is characterized in that: the material is prepared from the following raw materials in parts by weight: 33-36 parts of tackifying resin, 12-18 parts of PB resin, 34-38 parts of polyolefin elastomer POE and 14-16 parts of lubricating wax.
2. The hot melt adhesive for a mattress spring according to claim 1, wherein: the material is prepared from the following raw materials in parts by weight: 35 parts of tackifier, 15 parts of PB resin, 35 parts of polyolefin elastomer POE and 15 parts of lubricating wax.
3. The hot melt adhesive for a mattress spring according to claim 1, wherein: the tackifying resin is prepared by the following steps:
A1. adding 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol and methylene dichloride into a reaction bottle, stirring until the mixture is uniform, adding 2-ethoxy-1, 2-dihydro-1-quinoline carboxylic acid ethyl ester, stirring at normal temperature in a dark place for reaction for 15-17 hours to obtain a reaction solution, vacuum evaporating the reaction solution to remove a solvent to obtain a solid, washing the solid with diethyl ether for 3 times, and vacuum drying until the weight is constant to obtain polyol for later use;
A2. and C, adding rosin, the polyol obtained in the step A1 and zinc oxide into a reaction bottle under the protection of nitrogen, heating to 215 ℃, stirring and reacting for 6-8 hours, cooling to 155 ℃ to obtain a reaction solution, and vacuum drying the reaction solution to constant weight to obtain the tackifying resin.
4. A hot melt adhesive for a mattress spring as set forth in claim 3, wherein: in the step A1, the ratio of 3-amino-1, 2-propylene glycol, pentafluoropropionic acid, methanol, methylene dichloride and ethyl 2-ethoxy-1, 2-dihydro-1-quinolinecarboxylate is 1mol:1mol:200mL:300mL:0.02mol; in step A2, the ratio of rosin, polyol obtained in step A1, and zinc oxide was 1mol:4mol:0.55g.
5. The hot melt adhesive for a mattress spring according to claim 1, wherein: the lubricating wax is Fischer-Tropsch wax.
6. The method for preparing the hot melt adhesive for the mattress spring according to any one of claims 1 to 5, which is characterized in that: the method comprises the following steps:
B1. preparing raw materials according to parts by weight, putting the raw materials into a stirring kettle, and stirring for 5-10 minutes to obtain a stirring material;
B2. and C, heating the stirring material obtained in the step B1 to 130 ℃ to melt the stirring material, transferring the stirring material into a double-screw extruder to extrude and granulate to obtain granules, and cooling the granules to room temperature to obtain the hot melt adhesive for the mattress springs.
7. The method for preparing the hot melt adhesive for the mattress spring according to claim 6, wherein the method comprises the following steps: in the step B1, the stirring speed of the stirrer is 200 revolutions per minute.
8. The method for preparing the hot melt adhesive for the mattress spring according to claim 6, wherein the method comprises the following steps: in the step B2, the heating temperature of the machine barrel of the double-screw extruder is 150-160 ℃, and the rotating speed of the screw is 40 revolutions per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310597279.5A CN116694263A (en) | 2023-05-25 | 2023-05-25 | Hot melt adhesive for mattress springs and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310597279.5A CN116694263A (en) | 2023-05-25 | 2023-05-25 | Hot melt adhesive for mattress springs and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116694263A true CN116694263A (en) | 2023-09-05 |
Family
ID=87842505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310597279.5A Pending CN116694263A (en) | 2023-05-25 | 2023-05-25 | Hot melt adhesive for mattress springs and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116694263A (en) |
-
2023
- 2023-05-25 CN CN202310597279.5A patent/CN116694263A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5526544B2 (en) | Polymer and film or sheet containing the same | |
| CN101171300B (en) | Thermoplastic elastomer blend, method of manufacture and use thereof | |
| CN1806007A (en) | Crystallizable thermoplastic resins and dendrimers with improved fabrication characteristics | |
| CN1214712A (en) | Polyester/polyesteramide blends | |
| CN111234768A (en) | Polyurethane hot melt adhesive for bonding non-polar materials and preparation method thereof | |
| JP2009001637A (en) | Polylactic acid based elastic resin composition having excellent heat-resistance and shaped article prepared therefrom | |
| CN102639600B (en) | Hydrolytically stable polyamide | |
| CN102030861B (en) | Method for preparing epoxy functional acrylate polymer | |
| CN103732684B (en) | Hydrolysis and biodegradable aliphatic/aromatic copolyester ester resin composition | |
| CN103184030A (en) | Novel polyamide adhesive | |
| CN1322021C (en) | Amorphous-crystalline block copolymers | |
| JP6644878B2 (en) | Non-reactive hot melt adhesive containing specific resin | |
| JPS6136858B2 (en) | ||
| CN1283706C (en) | Method for reducing permeability of films or coatings to water vapour | |
| JP2023011717A (en) | biodegradable hot melt adhesive | |
| CN104334642A (en) | Polymer composition | |
| CN108865036B (en) | Modified polyester hot melt adhesive and preparation method thereof | |
| Chugh et al. | Preparation and characterization of a polyester-etheramide hot melt adhesive system from renewable resources | |
| CN116694263A (en) | Hot melt adhesive for mattress springs and preparation method thereof | |
| TW202227545A (en) | Crosslinked polyester resin | |
| CN104130737B (en) | Polyester-polyamide hot-melt adhesive composition and preparation method thereof | |
| CN104788661A (en) | Thermoplastic copolyetherester copolymer with main chain comprising saturated polyolefin soft segment structural units and preparation method of thermoplastic copolyetherester copolymer | |
| KR101976763B1 (en) | Hot melt adhesive composition | |
| CN111334243B (en) | Dimer acid type polyesteramide hot melt adhesive and preparation method thereof | |
| CN112812725B (en) | Full-biodegradable pressure-sensitive adhesive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |