CN114410273A - Hot melt adhesive and production method thereof - Google Patents
Hot melt adhesive and production method thereof Download PDFInfo
- Publication number
- CN114410273A CN114410273A CN202210248350.4A CN202210248350A CN114410273A CN 114410273 A CN114410273 A CN 114410273A CN 202210248350 A CN202210248350 A CN 202210248350A CN 114410273 A CN114410273 A CN 114410273A
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- China
- Prior art keywords
- hot melt
- melt adhesive
- production method
- nylon
- plant particles
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- 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
- C09J177/00—Adhesives based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Adhesives based on derivatives of such polymers
- C09J177/06—Polyamides derived from polyamines and polycarboxylic acids
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of hot melt adhesive processing, and particularly relates to a hot melt adhesive and a production method thereof; the method comprises the following steps: a: preparing plasticized plant particles; b: preparing a mixed base material; c: pouring the mixed base material with the temperature of 85-95 ℃ into mixing extrusion equipment, and adding a small amount of plasticized plant particles for many times; d: fully and uniformly stirring the mixed base material containing the plasticized plant particles, then extruding the mixture into a forming device by using a screw conveyor, fully cooling, and taking out the material and sealing; the hot melt adhesive comprises the following components: nylon-6, nylon-66 salt, nylon-1010 salt, plasticizer, anti-aging agent, coagulant, and plasticized plant particles; according to the method, the plasticized plant particles are added into the raw material of the hot melt adhesive, so that the hot melt adhesive product with further enhanced biodegradability is prepared; the mixing and extruding equipment comprises a supporting seat, a mixing tank, a material filling pipe, a limiting ring, a fixing seat, a multi-arm rotating frame, an eccentric stirring rod and a current limiter.
Description
Technical Field
The invention belongs to the technical field of hot melt adhesive processing, and particularly relates to a hot melt adhesive and a production method thereof.
Background
In the present day that the awareness of environmental protection is increasingly strong, the requirement on the hot melt adhesive is gradually increased; the biodegradable polyester amide copolymer is synthesized by taking two kinds of synthesized amide dihydric alcohol and sebacic acid as raw materials, and has biodegradable performance; the plasticized plant particles are added into the raw materials of the hot melt adhesive, so that the hot melt adhesive product with the biodegradability further enhanced is prepared.
Disclosure of Invention
In order to realize the purpose of preparing the hot melt adhesive product with further enhanced biodegradability, the invention adopts the following technical scheme:
the invention provides a production method of a hot melt adhesive, which comprises the following steps:
a: putting one or more of straw, corncobs, rice husks, peanut shells and bean dregs into a sodium hydroxide solution with the concentration of 20% for swelling for 8-10h, taking out, draining, putting into a reaction kettle for low-temperature treatment for 10-15min, performing vacuum biological plasticization on an active high-molecular polymer put into the reaction kettle, heating and stirring for 2-3h, terminating the reaction, discharging, washing for multiple times, fully drying, and finally crushing to obtain plasticized plant particles;
b: putting nylon-6 salt, nylon-66 salt, nylon-1010 salt, a molecular blocking agent, an antioxidant, an anti-aging agent, a coagulant, a coupling agent and a small amount of plasticized plant particles into a mixing roll, heating and stirring for 30-45min at the temperature of 95-105 ℃ and at the heating speed of 5-10 ℃/min to prepare a mixed base material;
c: pouring the mixed base material with the temperature of 85-95 ℃ into mixing extrusion equipment, and adding a small amount of plasticized plant particles for many times;
d: fully and uniformly stirring the mixed base material containing the plasticized plant particles, then extruding the mixture into a forming device by using a screw conveyor, fully cooling, and taking out the material for sealing.
Mix extrusion equipment includes supporting seat, blending tank, irritates material pipe, spacing ring, fixing base, multi-arm rotating turret, eccentric puddler and current limiter, install the blending tank on the supporting seat, be equipped with current limiter and a plurality of irritate material pipe on the blending tank, the bottom of blending tank is equipped with the bin outlet, is equipped with the heater on the irritated material pipe, and the fixing base is installed through the spacing ring to the upside of blending tank, rotates on the fixing base to be connected with the multi-arm rotating turret, installs eccentric puddler on the multi-arm rotating turret.
The hot melt adhesive comprises the following components: the weight portions are 100 portions of nylon-6 salt, 85 portions of nylon-66 salt, 150 portions of nylon-1010 salt, 10-15 portions of plasticizer, 2-5 portions of anti-aging agent, 8-14 portions of coagulant and 10-25 portions of plasticized plant particles.
Drawings
The following drawings are only intended to illustrate and explain the invention schematically, wherein:
FIG. 1 is a flow chart of a hot melt adhesive production process of the present invention;
FIG. 2 is a schematic view of the structure of the mixing and extruding apparatus of the present invention;
FIG. 3 is a schematic view of a reduced diameter flow tube and a filling base of the present invention;
FIG. 4 is a schematic structural view of a material filling pipe and a limiting ring according to the present invention;
FIG. 5 is a schematic view of the positioning rotating arm and the stocker according to the present invention;
FIG. 6 is a schematic view of the structure of the former and hydraulic cylinder of the present invention;
FIG. 7 is a schematic structural view of a mixing tank and a sealing rim of the present invention;
FIG. 8 is a schematic view of the construction of seats I and II of the present invention;
FIG. 9 is a schematic view of the construction of the spindle and auger of the present invention;
FIG. 10 is a schematic view of the retaining bracket and inner gear ring of the present invention;
fig. 11 is a schematic diagram of the construction of a multi-arm turret, drive frame and eccentric agitator shaft of the present invention.
Detailed Description
Specific examples of the present invention will be explained below.
A production method of a hot melt adhesive comprises the following steps:
a: one or more of straw, corncob, rice hull, peanut shell and bean dregs are put into a sodium hydroxide solution with the concentration of 20% for swelling for 9h, taken out and drained, then put into a reaction kettle for low-temperature treatment for 12min, and the active high-molecular polymer put into the reaction kettle is subjected to vacuum biological plasticization, the reaction is terminated and the material is discharged after heating and stirring for 2-3h, and the plasticized plant particles are prepared by fully drying after multiple washing and finally crushing;
b: putting nylon-6 salt, nylon-66 salt, nylon-1010 salt, a molecular blocking agent, an antioxidant, an anti-aging agent, a coagulant, a coupling agent and a small amount of plasticized plant particles into a mixing roll, heating and stirring for 42min at the stirring temperature of 98 ℃ and at the heating speed of 8 ℃/min to prepare a mixed base material;
c: pouring the mixed base material with the temperature of 92 ℃ into mixing and extruding equipment, and adding a small amount of plasticized plant particles for multiple times;
d: fully and uniformly stirring the mixed base material containing the plasticized plant particles, then extruding the mixture into a forming device by using a screw conveyor, fully cooling, and taking out the material for sealing.
The polyamide hot melt adhesive processed by the method is mainly applied to the field of clothes, is used for adhering lining cloth of the clothes and increasing the degradation performance of the hot melt adhesive, so that the treatment convenience of the discarded clothes is improved;
after the plant is plasticized, the thermoplastic property is achieved, the polarity of the plant particles can be reduced, and the compatibility of the plasticized plant particles and other raw materials is improved in the mixing process, so that the degradation speed of the enhanced product and the garment is obtained while the hot melt adhesive is hot-melt after being processed;
the hot melt adhesive is made into a column shape through a mixing extrusion device, and when the hot melt adhesive is used, the hot melt adhesive is applied after the end part is slightly heated.
The hot melt adhesive comprises the following components: the weight portions of the components are 100 portions of nylon-6 salt, 85 portions of nylon-66 salt, 150 portions of nylon-1010 salt, 12 portions of plasticizer, 3 portions of age resister, 10 portions of coagulant and 15 portions of plasticized plant particles.
In addition, the water-based paint also comprises a molecular blocking agent, a viscosity regulator, an antioxidant, a whitening agent and water.
See FIGS. 2-11 for an illustration:
mix extrusion equipment includes supporting seat 11, blending tank 12, irritate material pipe 15, spacing ring 16, fixing base 21, multi-arm rotating turret 22, eccentric puddler 24 and current limiter 51, fixedly connected with blending tank 12 on the supporting seat 11, fixedly connected with current limiter 51 in the blending tank 12, the intercommunication has a plurality of irritate material pipes 15 on the blending tank 12, and the bottom of blending tank 12 is equipped with the bin outlet, is equipped with the heater on the irritate material pipe 15, and fixing base 21 is installed through spacing ring 16 to the upside of blending tank 12, and the middle part of fixing base 21 is rotated and is connected with multi-arm rotating turret 22, installs a plurality of eccentric puddlers 24 on the multi-arm rotating turret 22.
The mixing base materials and the plasticized plant particles are put into the mixing tank 12 from a plurality of filling pipes 15, and the materials circulating in the filling pipes 15 are heated to keep the temperature between 85 and 95 ℃ so as to be convenient for further mixing of the materials;
a speed reducing motor I is arranged on the fixed seat 21, an output shaft of the speed reducing motor I is fixedly connected with the multi-arm rotating frame 22, and the multi-arm rotating frame 22 can drive the eccentric stirring rod 24 to fully stir and mix the materials in the mixing tank 12 by starting the speed reducing motor I;
the flow restrictor 51 is used for limiting the flow rate of the raw materials, and a plurality of filtering holes are arranged on the flow restrictor 51 to intercept larger plant particles at the same time, so that the stirring effect of the eccentric stirring rod 24 on the materials in the mixing tank 12 is further improved;
a valve may be provided at the bottom of the mixing tank 12 to restrict the flow and shut-off of the feedstock at the discharge outlet.
See FIGS. 2-11 for an illustration:
the mixing extrusion equipment further comprises a transmission frame 23 and an internal gear ring 26, wherein the eccentric stirring rod 24 is connected with the multi-arm rotating frame 22 through the transmission frame 23, the transmission frame 23 is rotatably connected with the multi-arm rotating frame 22, the eccentric stirring rod 24 is fixedly connected with the transmission frame 23, the internal gear ring 26 is connected with the transmission frame 23 through meshing transmission, and the internal gear ring 26 is fixedly connected to the lower side of the fixed seat 21.
The gear motor I is started, the multi-arm rotating frame 22 can be driven to rotate by taking the axis of the multi-arm rotating frame as the shaft, the transmission frame 23 can rotate by taking the axis of the multi-arm rotating frame 22 as the shaft under the action of the internal gear ring 26, and meanwhile, the stirring effect of the eccentric stirring rod 24 arranged on the transmission frame 23 on the plasticized plant particles and the mixed base material is increased.
See FIGS. 2-11 for an illustration:
the mixing and extruding equipment further comprises a flow restriction plate 52, and a plurality of flow restriction plates 52 with filter holes are arranged on the flow restrictor 51.
The restrictor plate 52 has a slope that allows the intercepted plasticized plant particles to slip and accumulate at the bottom.
See FIGS. 2-11 for an illustration:
the mixing and extruding equipment further comprises a driving wheel I25, a rotating shaft 31, a spiral conveyor 32, a driving wheel II 33 and a seat I41, wherein the driving wheel I25 is fixedly connected to the eccentric stirring rod 24, the spiral conveyor 32 and the driving wheel II 33 are respectively installed at two ends of the rotating shaft 31, the driving wheel I25 and the driving wheel II 33 can be in intermittent meshing transmission connection, the seat I41 is fixedly connected to the flow restrictor 51, and the rotating shaft 31 is rotatably connected with the seat I41.
Because the eccentric stirring rods 24 rotate by taking the axes of the eccentric stirring rods as shafts and rotate around the axes of the multi-arm rotating frame 22 as shafts, the screw conveyor 32 can be intermittently driven to rotate by the driving wheel II 33, and therefore intermittent extrusion treatment is carried out on the mixed rubber material.
See FIGS. 2-11 for an illustration:
the mixing and extruding equipment also comprises a reducing flow pipe 13, and the lower side of the mixing tank 12 is provided with the reducing flow pipe 13.
The arrangement of the reducing circulation pipe 13 is convenient for accelerating the solidification speed of the fully mixed raw materials, thereby increasing the forming efficiency of the hot melt adhesive;
further, a refrigerator may be installed outside the reduced diameter flow pipe 13.
See FIGS. 2-11 for an illustration:
the mixing and extruding equipment further comprises a seat II 42, the reducing circulation pipe 13 is provided with the seat II 42, and the lower end of the rotating shaft 31 is rotatably connected with the seat II 42.
The seat II 42 can enhance the rotation stability of the rotating shaft 31.
See FIGS. 2-11 for an illustration:
the mixing and extruding device also comprises a sealing edge 14, and the lower side of the reducing circulation pipe 13 is provided with the sealing edge 14. The arrangement of the sealing edge 14 can facilitate the bottom of the reducing flow pipe 13 to be blocked, and the circulation and the stop of the raw materials at the discharge opening are limited.
See FIGS. 2-11 for an illustration:
the connection part of the mixing tank 12 and the reducing circulation pipe 13 and the connection part of the reducing circulation pipe 13 and the sealing edge 14 are both provided with a slope surface.
Domatic setting can slow down the exhaust velocity of material, when reducing the circulation pipe diameter, is convenient for get rid of the inside gas that produces because of the stirring of material.
See FIGS. 2-11 for an illustration:
the mixing and extruding equipment further comprises a positioning rotating arm 61, a filling seat 62, a material storage device 63, a forming device 64, a hydraulic cylinder 65, a sleeve seat 71 and a connecting frame 74, the sleeve seat 71 is installed on the reducing circulation pipe 13, the connecting frame 74 is connected to the sleeve seat 71 in a sliding mode, the positioning rotating arm 61 is connected to the connecting frame 74 in a rotating mode, the filling seat 62 is installed on the positioning rotating arm 61, the filling seat 62 is communicated with a plurality of material storage devices 63, the material storage device 63 is connected with the forming device 64 in a sliding mode, and the hydraulic cylinder 65 used for controlling the forming device 64 to slide in the material storage device 63 is installed between the forming device 64 and the filling seat 62.
The upper side of the filling seat 62 is always attached to the lower side of the sealing edge 14 to play a role of a valve;
the material storage device 63 can be communicated with a material outlet on the lower side of the mixing tank 12;
the connecting frame 74 is provided with a speed reducing motor II, an output shaft of the speed reducing motor II is fixedly connected with the positioning rotating arm 61, when the speed reducing motor II is started, the positions of a plurality of groups of material storage devices 63 can be switched, the equipment can be continuously used, and hot melt adhesive is molded and extruded;
the fixed end of the hydraulic cylinder 65 is fixedly connected with the filling seat 62, the movable end of the hydraulic cylinder 65 is fixedly connected with the former 64, and the hot melt adhesive with various length sizes is processed by the equipment by controlling the sliding position of the former 64 on the material storage device 63, and meanwhile, the completely cooled hot melt adhesive is convenient to take out.
See FIGS. 2-11 for an illustration:
mix extrusion equipment still includes cam 66, clamp plate 72 and traveller 73, install two travelers 73 on the sleeve seat 71, traveller 73 and connection frame 74 sliding connection install the spring between connection frame 74 and the sleeve seat 71, install clamp plate 72 on the sleeve seat 71, install cam 66 on the location rotor arm 61, the tight cooperation in top is connected between cam 66 and the clamp plate 72.
When the speed reducing motor II is started, the connecting frame 74 can be driven to slide on the sleeve seat 71 in a reciprocating manner under the action of the cam 66 and the spring, so that the hot melt adhesive material can flow downwards in the material storage device 63 conveniently.
Claims (10)
1. A production method of hot melt adhesive is characterized in that: the method comprises the following steps:
a: putting one or more of straw, corncobs, rice husks, peanut shells and bean dregs into a sodium hydroxide solution with the concentration of 20% for swelling for 8-10h, taking out, draining, putting into a reaction kettle for low-temperature treatment for 10-15min, performing vacuum biological plasticization on an active high-molecular polymer put into the reaction kettle, heating and stirring for 2-3h, terminating the reaction, discharging, washing for multiple times, fully drying, and finally crushing to obtain plasticized plant particles;
b: putting nylon-6 salt, nylon-66 salt, nylon-1010 salt, a molecular blocking agent, an antioxidant, an anti-aging agent, a coagulant, a coupling agent and a small amount of plasticized plant particles into a mixing roll, heating and stirring for 30-45min at the temperature of 95-105 ℃ and at the heating speed of 5-10 ℃/min to prepare a mixed base material;
c: pouring the mixed base material with the temperature of 85-95 ℃ into mixing extrusion equipment, and adding a small amount of plasticized plant particles for many times;
d: fully and uniformly stirring the mixed base material containing the plasticized plant particles, then extruding the mixture into a forming device by using a screw conveyor, fully cooling, and taking out the material for sealing.
2. The production method of the hot melt adhesive according to claim 1, characterized in that: mix extrusion equipment includes supporting seat (11), eccentric puddler (24) and current limiter (51), install blending tank (12) on supporting seat (11), be equipped with current limiter (51) and a plurality of material pipe (15) of irritating on blending tank (12), the bottom of blending tank (12) is equipped with the bin outlet, irritate and be equipped with the heater on material pipe (15), fixing base (21) are installed through spacing ring (16) to the upside of blending tank (12), it is connected with multi-arm rotating turret (22) to rotate on fixing base (21), install eccentric puddler (24) on multi-arm rotating turret (22).
3. The production method of the hot melt adhesive according to claim 2, characterized in that: the eccentric stirring rod (24) is connected with the multi-arm rotating frame (22) through the transmission frame (23), the transmission frame (23) is rotatably connected to the multi-arm rotating frame (22), the eccentric stirring rod (24) is fixedly connected to the transmission frame (23), the transmission frame (23) is in meshing transmission connection with the inner gear ring (26), and the inner gear ring (26) is installed on the lower side of the fixed seat (21).
4. The production method of the hot melt adhesive according to claim 2, characterized in that: the flow restrictor (51) is provided with a plurality of flow restricting plates (52) with filtering holes.
5. The hot melt adhesive production method according to claim 3, characterized in that: the mixing extrusion equipment further comprises a rotating shaft (31) and a seat I (41), a driving wheel I (25) is installed on the eccentric stirring rod (24), a spiral conveyor (32) and a driving wheel II (33) are installed at two ends of the rotating shaft (31) respectively, the driving wheel II (33) is in intermittent meshing transmission connection with the driving wheel I (25), the seat I (41) is installed on the flow restrictor (51), and the rotating shaft (31) is rotatably connected to the seat I (41).
6. The production method of the hot melt adhesive according to claim 2, characterized in that: a reducing circulation pipe (13) is arranged on the lower side of the mixing tank (12).
7. The hot melt adhesive production method according to claim 5, characterized in that: and a seat II (42) is installed on the diameter-reducing circulation pipe (13), and the lower end of the rotating shaft (31) is rotatably connected with the seat II (42).
8. The hot melt adhesive production method according to claim 6, characterized in that: and a sealing edge (14) is arranged on the lower side of the reducing circulation pipe (13).
9. The hot melt adhesive production method according to claim 8, wherein: the connection part of the mixing tank (12) and the reducing circulation pipe (13) and the connection part of the reducing circulation pipe (13) and the sealing edge (14) are both provided with slopes.
10. The hot melt adhesive produced by the hot melt adhesive production method of claim 1, wherein the hot melt adhesive comprises: the weight portions are 100 portions of nylon-6 salt, 85 portions of nylon-66 salt, 150 portions of nylon-1010 salt, 10-15 portions of plasticizer, 2-5 portions of anti-aging agent, 8-14 portions of coagulant and 10-25 portions of plasticized plant particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248350.4A CN114410273A (en) | 2022-03-14 | 2022-03-14 | Hot melt adhesive and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210248350.4A CN114410273A (en) | 2022-03-14 | 2022-03-14 | Hot melt adhesive and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114410273A true CN114410273A (en) | 2022-04-29 |
Family
ID=81264235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210248350.4A Withdrawn CN114410273A (en) | 2022-03-14 | 2022-03-14 | Hot melt adhesive and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114410273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114800925A (en) * | 2022-06-28 | 2022-07-29 | 南通市索咖热熔胶有限公司 | Preparation equipment of hot melt adhesive for adhesive interlining |
| CN114874725A (en) * | 2022-05-24 | 2022-08-09 | 北京汇林印务有限公司 | EVA hot melt adhesive for book binding and preparation method thereof |
-
2022
- 2022-03-14 CN CN202210248350.4A patent/CN114410273A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874725A (en) * | 2022-05-24 | 2022-08-09 | 北京汇林印务有限公司 | EVA hot melt adhesive for book binding and preparation method thereof |
| CN114874725B (en) * | 2022-05-24 | 2023-11-17 | 北京汇林印务有限公司 | EVA hot melt adhesive for bookbinding and preparation method thereof |
| CN114800925A (en) * | 2022-06-28 | 2022-07-29 | 南通市索咖热熔胶有限公司 | Preparation equipment of hot melt adhesive for adhesive interlining |
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Application publication date: 20220429 |
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