CN115404037B - Metal hand die weld joint filling material, preparation method and weld joint treatment process - Google Patents
Metal hand die weld joint filling material, preparation method and weld joint treatment process Download PDFInfo
- Publication number
- CN115404037B CN115404037B CN202211201884.8A CN202211201884A CN115404037B CN 115404037 B CN115404037 B CN 115404037B CN 202211201884 A CN202211201884 A CN 202211201884A CN 115404037 B CN115404037 B CN 115404037B
- Authority
- CN
- China
- Prior art keywords
- filling material
- hand die
- metal
- weld joint
- metal hand
- 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.)
- Active
Links
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
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- 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
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of metal hand die weld joints, in particular to a metal hand die weld joint filling material, a preparation method and a weld joint treatment process; specifically, the joint filling material comprises NCO-terminated polyurethane prepolymer, metal alloy powder, dispersing agent, defoamer, antioxidant, leveling agent, adhesion promoter and solvent; the preparation method comprises the steps of preparing an NCO-terminated polyurethane prepolymer and mixing the NCO-terminated polyurethane prepolymer with other raw materials under the condition of micro positive pressure of nitrogen; the processing technology comprises the steps of injecting the filling material of the metal hand die welding seam into a manual construction container or a mechanical construction container, and coating the filling material along one direction aiming at the welding seam, so that the filling of the metal hand die welding seam can be completed. The metal hand die weld joint filling material can fill weld joints, can realize strong adhesion with weld joint materials, can fill defects such as pits and sand holes on the surface of a hand die, and ensures the quality of preparing latex gloves.
Description
Technical Field
The application relates to the technical field of metal hand die weld joints, in particular to a metal hand die weld joint filling material, a preparation method and a weld joint treatment process.
Background
In industries with relatively high requirements for hygiene, such as the medical industry, laboratories, food processing industry, etc., disposable latex gloves are often used in order to avoid cross-infection. The glove mold is an essential component in the production process of the disposable latex glove, in the preparation process of the glove, the glove mold needs to be cleaned firstly, the quality of the glove is ensured not to be affected by other impurities attached to the glove mold, and then the glove mold is immersed into the adhesion promoter, so that glove materials produced later can be attached to the glove mold better. After the hand mould is ready, the hand mould can be immersed in liquid latex and then taken out, the latex is shaped through procedures such as heating and solidifying, the glove is formed, finally, the glove is removed, the hand mould is continuously recycled, and the quality of the hand mould is directly related to the quality of the glove.
Most of the existing hand molds are ceramic hand molds, gravity casting integral metal hand molds, die casting processing hand molds and the like. The die-casting forming metal hand die machined piece comprises a hand die left half body, a hand die right half body and a base, wherein the hand die left half body and the hand die right half body are integrally designed, and the hand die right half body and the base are integrally designed. The two hand mould halves are mutually pressed and welded to form a hand mould main body, the top of the base is clamped at the bottom of the hand mould main body and is also fixed with the hand mould main body through welding, so that the whole metal hand mould is formed.
However, in the welding process of the two hand mold halves, the welding part, especially the fingers, are free from the problems of difficult welding and difficult welding seam treatment, and the service life of the hand mold is influenced, and meanwhile, the defects of concave, sand holes and the like on the surface of the hand mold caused by the existence of the welding seam are also caused, so that the quality problem of the latex glove is caused.
Disclosure of Invention
In view of the shortcomings of the prior art, one of the purposes of the present application is to provide a metal hand die weld joint filling material, in particular:
the joint filling material comprises NCO-terminated polyurethane prepolymer, metal alloy powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent; wherein, the total parts of each component calculated by 100 parts are as follows:
35-45 parts of NCO-terminated polyurethane prepolymer;
5-10 parts of filler powder;
0.2-1 part of dispersing agent;
0.5-1.5 parts of defoaming agent;
0.3-0.5 part of antioxidant;
0.5-1.5 parts of leveling agent;
0.1-0.5 part of adhesion promoter;
the balance being solvent;
wherein the NCO-terminated polyurethane prepolymer is prepared by polymerizing 35-45 parts of polyether polyol and 50-60 parts of polyisocyanate and then chain-extending the polymerized polyether polyol and the 50-60 parts of polyisocyanate by a chain extender.
Preferably, the filler comprises metal alloy powder and cement powder; wherein the metal alloy powder accounts for 60-75% of the total mass of the filler powder, and the cement powder comprises one or two of fly ash powder, slag ash powder and volcanic ash powder.
Preferably, the metal alloy powder is tin-bismuth-indium alloy powder, wherein the weight percentage of tin, bismuth and indium in the alloy powder is 0.5-0.6:1:1.5-1.8.
Preferably, the particle size of the metal alloy is 0.1-10 μm.
Preferably, the polyisocyanate is pure MDI and the polyether polyol is polytetrahydrofuran ether polyol.
Preferably, the antioxidant is one of antioxidant 1010 or antioxidant 1076; the leveling agent is an acrylic ester leveling agent; the adhesion promoter is one or more of 3-aminopropyl triethoxysilane, gamma-mercaptopropyl trimethoxysilane, gamma-glycidoxypropyl trimethoxysilane, 3-aminopropyl trimethoxysilane and gamma-isocyanatopropyl triethoxysilane; the solvent is one or any combination of butyl acetate, dichloromethane and xylene; the dispersing agent is a polyurethane type high polymer dispersing agent; the defoaming agent is an organosilicon defoaming agent.
The second purpose of the application is to provide a preparation method of the metal hand die weld joint filling material, which is specifically as follows:
the preparation method of the metal hand die weld joint filling material comprises the following preparation steps:
s1, enabling the whole inside of a reaction container to be in a nitrogen micro-positive pressure state, preheating the reaction container to 65-85 ℃, then placing polyether polyol and isocyanate into the reaction container to react for 2-2.5 hours at the temperature of 65-85 ℃, cooling to normal temperature, adding a chain extender, and reacting for 0.8-1.5 hours at normal temperature to obtain an NCO-terminated polyurethane prepolymer;
s2, at normal temperature, adding metal alloy powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent into a stirring container, keeping the temperature of the stirring container within the range of 45-55 ℃, and stirring for 1-1.5h to form a mixture;
s3, adding the mixture in the step S2 into a reaction container in the step S1, and stirring under the conditions of nitrogen micro-positive pressure and 65-85 ℃ until stirring is uniform;
and S4, carrying out vacuumizing operation on the reaction vessel under the continuous stirring state, maintaining the vacuum state for 60-90min, stopping stirring when the temperature is stable and has a descending trend, filling nitrogen into the reaction vessel to release the vacuum state, and discharging to obtain the metal hand die weld filler.
Preferably, the micro positive pressure of the nitrogen in the steps S1 and S3 means that the pressure of the nitrogen in the reaction vessel is 0.1-0.2Mpa.
The application further aims to provide a treatment process of the metal hand die weld joint, which comprises the following steps of:
a metal hand die weld joint treatment process, which uses a metal hand die weld joint filling material prepared by the preparation method, comprises manual construction and mechanical construction, and specifically comprises the following steps:
during manual construction, the metal hand-mold welding seam filling material is injected into a caulking gun or an extruder for standby, a discharge port of the caulking gun or the extruder is aligned to a hand-mold welding seam, the metal hand-mold welding seam filling material is filled, and the metal hand-mold welding seam filling material is repeatedly scraped in one direction, compacted, filled and scraped to remove redundant filling materials, so that a large number of bubbles are prevented from being mixed into the filling materials.
During mechanical construction, filling materials for the metal hand die weld joint are filled into a manual gun or a full-automatic glue sprayer for standby, the glue coating amount and the glue coating speed are controlled by the manual gun or the full-automatic glue sprayer, a gun nozzle is required to be reported to move uniformly along one direction until the filling materials are filled or slightly higher than the weld joint during construction by the glue gun, and finally, redundant filling materials are scraped off to ensure the weld joint to be filled, and air bubbles generated by too fast movement or reciprocation are prevented.
The application has the beneficial effects that: the metal hand die weld joint filling material can realize filling of weld joints, has excellent bonding effect with the weld joints and the metal hand dies, and ensures that a filling material system is compatible with a metal hand die material by arranging the metal alloy powder and the cement powder with proper proportions as the filling materials, thereby improving the connection strength between the filling material system and the metal hand die system and realizing strong bonding with the weld joint material;
the preparation method of the metal hand die weld joint filling material has the advantages that the raw materials and the adopted equipment are simple and easy to obtain, and the implementation is convenient;
the processing technology can fill up the defects of pits, sand holes and the like on the surface of the hand mould, and the combination degree between the filling material and the hand mould body is good, so that the defects on the surface of the hand mould are avoided, and the quality of the prepared latex glove is further ensured.
Detailed Description
The application will be further illustrated by the following examples, which are not intended to limit the scope of the application, in order to facilitate the understanding of those skilled in the art.
The raw materials and equipment used in the application can be purchased commercially.
The joint filling material comprises NCO-terminated polyurethane prepolymer, metal alloy powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent; wherein, the total parts of each component calculated by 100 parts are as follows:
35-45 parts of NCO-terminated polyurethane prepolymer;
5-10 parts of filler powder;
0.2-1 part of dispersing agent;
0.5-1.5 parts of defoaming agent;
0.3-0.5 part of antioxidant;
0.5-1.5 parts of leveling agent;
0.1-0.5 part of adhesion promoter;
the balance being solvent;
wherein the NCO-terminated polyurethane prepolymer is prepared by polymerizing 35-45 parts of polyether polyol and 50-60 parts of polyisocyanate and then chain-extending the obtained product by a chain extender, and the chain extender is dihydric or polyhydric small molecular alcohol.
The filler comprises metal alloy powder and cement powder; the metal alloy powder accounts for 60-75% of the total mass of the filler powder, the cement powder comprises one or two of fly ash powder, slag ash powder and volcanic ash powder, and the cement has a particle size of 8-20 μm.
The metal alloy powder is tin-bismuth-indium alloy powder, wherein the weight percentage of tin, bismuth and indium in the alloy powder is 0.5-0.6:1:1.5-1.8, which can be 0.5:1:1.5, 0.6:1:1.5, 0.6:1:1.8, preferably 0.5:1:1.5.
the grain size of the metal alloy is 0.1-10 mu m.
The polyisocyanate is pure MDI and the polyether polyol is polytetrahydrofuran ether polyol.
The antioxidant is one of antioxidant 1010 or antioxidant 1076;
the leveling agent is an acrylic ester leveling agent;
the adhesion promoter is one or more of 3-aminopropyl triethoxysilane, gamma-mercaptopropyl trimethoxysilane, gamma-glycidoxypropyl trimethoxysilane, 3-aminopropyl trimethoxysilane and gamma-isocyanatopropyl triethoxysilane;
the solvent can be one or the combination of any two or three of butyl acetate, dichloromethane and dimethylbenzene;
the dispersing agent is polyurethane type macromolecule dispersing agent;
the defoaming agent is an organosilicon defoaming agent, and in the application, BYK-141 organosilicon defoaming agent is adopted as the organosilicon defoaming agent.
The preparation method of the metal hand die weld joint filling material comprises the following preparation steps:
s1, enabling the whole inside of a reaction container to be in a nitrogen micro-positive pressure state, preheating the reaction container to 65-85 ℃, then placing polyether polyol and isocyanate into the reaction container to react for 2-2.5 hours at the temperature of 65-85 ℃, cooling to normal temperature, adding a chain extender, and reacting for 0.8-1.5 hours at normal temperature to obtain an NCO-terminated polyurethane prepolymer;
s2, at normal temperature, adding metal alloy powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent into a stirring container, keeping the temperature of the stirring container within the range of 45-55 ℃, and stirring for 1-1.5h to form a mixture;
s3, adding the mixture in the step S2 into a reaction container in the step S1, and stirring under the conditions of nitrogen micro-positive pressure and 65-85 ℃ until stirring is uniform;
and S4, carrying out vacuumizing operation on the reaction vessel under the continuous stirring state, maintaining the vacuum state for 60-90min, stopping stirring when the temperature is stable and has a descending trend, filling nitrogen into the reaction vessel to release the vacuum state, and discharging to obtain the metal hand die weld filler.
The micro positive pressure of nitrogen in the steps S1 and S3 means that the pressure of nitrogen in the reaction vessel is 0.1-0.2Mpa.
The reaction vessel is a reaction kettle, and the stirring vessel can be general stirring equipment or a reaction kettle.
A metal hand die weld joint treatment process, which uses a metal hand die weld joint filling material prepared by the preparation method, comprises manual construction and mechanical construction, and specifically comprises the following steps:
during manual construction, the metal hand-mold welding seam filling material is injected into a caulking gun or an extruder for standby, a discharge port of the caulking gun or the extruder is aligned to a hand-mold welding seam, the metal hand-mold welding seam filling material is filled, and the metal hand-mold welding seam filling material is repeatedly scraped in one direction, compacted, filled and scraped to remove redundant filling materials, so that a large number of bubbles are prevented from being mixed into the filling materials.
During mechanical construction, filling materials for the metal hand die weld joint are filled into a manual gun or a full-automatic glue sprayer for standby, the glue coating amount and the glue coating speed are controlled by the manual gun or the full-automatic glue sprayer, a gun nozzle is required to be reported to move uniformly along one direction until the filling materials are filled or slightly higher than the weld joint during construction by the glue gun, and finally, redundant filling materials are scraped off to ensure the weld joint to be filled, and air bubbles generated by too fast movement or reciprocation are prevented.
Example 1
A metal hand die weld joint filling material comprises the following specific raw materials:
35kg of NCO-terminated polyurethane prepolymer; wherein, 12.25kg of pure MDI,22.75kg of polytetrahydrofuran ether polyol;
5kg of filler powder, wherein the proportion is 0.5:1:1.5, 3kg of tin, bismuth and indium metal alloy powder and 2kg of fly ash powder; the grain diameter of the metal alloy is 0.1-10 mu m, and the median grain diameter is 8 mu m;
0.2kg of polyurethane type macromolecule dispersing agent;
BYK-141 organosilicon defoamer 0.5kg;
1010.3 kg of antioxidant;
0.5kg of acrylate leveling agent;
selecting 0.1kg of 3-aminopropyl triethoxysilane as an adhesion promoter;
58.4kg of dimethylbenzene in balance;
the preparation method comprises the following steps:
s1, enabling the whole inside of a reaction kettle to be in a micro positive pressure of nitrogen (the pressure of the nitrogen in the reaction container is 0.1-0.2 Mpa), preheating the reaction container, setting the temperature to 70 ℃, then placing pure MDI and polytetrahydrofuran ether polyol into the reaction kettle to react for 2 hours at the temperature of 65-85 ℃, cooling to normal temperature, adding a chain extender, and reacting at normal temperature for 0.8 to obtain an NCO-terminated polyurethane prepolymer;
s2, at normal temperature, putting the other raw materials into a stirring container, keeping the temperature of the stirring container within the range of 45-55 ℃, and stirring for 1h to form a mixture;
s3, adding the mixture in the step S2 into a reaction container in the step S1, and stirring under the conditions of nitrogen micro-positive pressure (the nitrogen pressure in the reaction container is 0.1-0.2 Mpa) and the temperature of 65-85 ℃ until stirring is uniform;
and S4, carrying out vacuumizing operation on the reaction vessel in a continuous stirring state, maintaining the vacuum state for 60min, stopping stirring when the temperature is stable and has a descending trend, filling nitrogen into the reaction vessel to release the vacuum state, and discharging to obtain the metal hand die weld filler.
Example 2
The difference between this example and example 1 is that the raw materials in this example are different from example 1 in parts by weight, and specifically are as follows:
40kg of NCO-terminated polyurethane prepolymer; wherein 16kg of pure MDI,24kg of polytetrahydrofuran ether polyol;
8kg of filler powder, wherein the proportion is 0.5:1:1.5, 4.8kg of tin, bismuth and indium alloy powder and 3.2kg of fly ash powder; the grain diameter of the metal alloy is 0.1-10 mu m, and the median grain diameter is 8 mu m;
0.5kg of polyurethane type macromolecule dispersing agent;
BYK-141 organosilicon defoamer 1kg;
1010.4 kg of antioxidant;
1kg of acrylate leveling agent;
selecting 0.3kg of 3-aminopropyl triethoxysilane as an adhesion promoter;
the balance being 48.8kg of xylene.
The preparation method of the metal hand die weld joint filling material is the same as that of the embodiment 1.
Example 3
The difference between this example and example 1 is that the raw materials in this example are different from example 1 in parts by weight, and specifically are as follows:
45kg of NCO-terminated polyurethane prepolymer; wherein 20.25kg of pure MDI,24.75kg of polytetrahydrofuran ether polyol;
10kg of filler powder, wherein the proportion is 0.5:1:1.5, 7kg of tin, bismuth and indium metal alloy powder and 3kg of fly ash powder; the grain diameter of the metal alloy is 0.1-10 mu m, and the median grain diameter is 8 mu m;
1kg of polyurethane type high molecular dispersing agent;
BYK-141 organosilicon defoamer 1.5kg;
1010.5 kg of antioxidant;
1.5kg of acrylate leveling agent;
0.5kg of 3-aminopropyl triethoxysilane is selected as an adhesion promoter;
the balance being 40kg of xylene.
The preparation method of the metal hand die weld joint filling material is the same as that of the embodiment 1.
Example 4
The difference between this embodiment and embodiment 1 is that the ratio of tin, bismuth, and indium in the metal alloy powder selected in this embodiment is different from that in embodiment 1, and in this embodiment, the ratio of tin, bismuth, and indium in the alloy powder is 0.6:1:1.5.
example 5
The difference between this embodiment and embodiment 1 is that the ratio of tin, bismuth, and indium in the metal alloy powder selected in this embodiment is different from that in embodiment 1, and in this embodiment, the ratio of tin, bismuth, and indium in the alloy powder is 0.6:1:1.8.
example 6
The difference between this example and example 1 is that the raw materials selected in this example are different from those in example 1, and the cement powder in this example is slag ash powder.
Example 7
The difference between this embodiment and embodiment 1 is that, in this embodiment, the selected part of raw materials is different from embodiment 1, and in this embodiment, cement powder is selected with a mass ratio of 1:1 fly ash and volcanic ash powder.
Example 8
The difference between this example and example 1 is that the raw materials selected in this example are different from those of example 1, and the adhesion promoter selected in this example is gamma-mercaptopropyl trimethoxysilane.
Example 9
The difference between this example and example 1 is that the raw materials selected in this example are different from example 1, and the adhesion promoter selected in this example is a mixture of gamma-glycidoxypropyl trimethoxysilane and gamma-isocyanatopropyl triethoxysilane.
Comparative example 1
And commercially available weld filler.
Comparative example 2
The present comparative example differs from example 1 in that the present comparative example does not use an adhesion promoter.
Comparative example 3
The difference between this comparative example and example 1 is that the filler of this comparative example is only cement powder.
Comparative example 4
This comparative example 4 differs from example 1 in that the ratio of tin, bismuth, and indium in the alloy powder of this comparative example is 1:1:1.
comparative example 5
This comparative example 4 differs from example 1 in that the ratio of tin, bismuth, and indium in the alloy powder of this comparative example is 2:1:0.5.
and (3) performance detection:
the metallic hand die joint filling materials prepared in examples 1 to 9 and comparative examples 1 to 5 above were labeled as samples 1 to 14, and were subjected to high temperature appearance detection, bubble detection, adhesion detection, and specific application detection.
And (3) bubble detection: the metal hand die weld filler materials of samples 1-14 were placed in an environment of 40 c and then baked at 140 c for 30 minutes to see if the filler material produced bubbles.
Post bake (high temperature) surface appearance: visual inspection should not occur with peeling, flaking, discoloration and significant softening.
And (3) adhesion detection: coating a sample into 80mm 40mm on an electrophoresis plate, wherein the gradient is a filling material, scraping the surface, and manufacturing 3 test pieces; the test pieces were baked in an incubator at 140 ℃ for 30 minutes, taken out and left at room temperature for 24 hours. Two parallel lines were cut on the sample with an artist blade at a 5mm distance, the cutting force was uniform and moderate, the edge opening was just penetrated through the coating to touch the substrate, and then the coating was peeled off evenly from the bottom: the level is determined as required by the table.
And (3) detecting specific application: the 14 samples are processed on the welding lines or pits generated on the surfaces of 14 metal hand dies, and the 14 metal hand dies are respectively corresponding to the reference number test samples 1-14, and the processing adopts a manual construction mode, and the specific operation steps are as follows:
and respectively injecting the metal hand die seam filling materials into caulking guns, aligning the discharge ports of the caulking guns with the welding seams of 14 hand dies, filling the metal hand die seam filling materials, repeatedly scraping and coating along one direction, compacting, filling and scraping redundant filling materials, and preventing a large amount of bubbles from being mixed into the filling materials. The test samples 1-14 were put into production for latex glove production and continuously used for 1 day, and the use condition of the metal hand mold and the appearance of the produced latex glove were observed.
The test results are shown in the following table:
from the detection data of the samples 1-9, the metal hand mold weld joint filling material prepared by the application has strong adhesiveness with defects generated on the surface of the hand mold, has smooth surface, has no bubbles or cracks when being used at high temperature, can adapt to the environment condition of the hand mold production process when being put into use, and can avoid the defect on the surface of the hand mold from influencing the quality of the glove from the condition of the glove quality.
The metal hand die weld filler material prepared by the compounding and preparation method of the present application has excellent filling effect on hand die surface defects as seen in the data of comparative example 1 (sample 10), and in the data of comparative examples 2 to 4 (samples 11 to 14). The use of the adhesive, the proportion of tin, bismuth and indium alloy in the proportion of the adhesive and the proportion of alloy powder and cement powder in the filler can influence the quality of the filler to a certain extent, thereby influencing the quality of the prepared latex glove.
In view of the above, the present application has the above-mentioned excellent characteristics, so that it can be used to improve the performance and practicality of the prior art, and is a product with great practical value.
The foregoing is merely exemplary of the present application, and those skilled in the art should not be considered as limiting the application, since modifications may be made in the specific embodiments and application scope of the application in light of the teachings of the present application.
Claims (7)
1. The metal hand die weld joint filling material is characterized by comprising an NCO-terminated polyurethane prepolymer, filler powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent; wherein, the total parts of each component calculated by 100 parts are as follows:
35-45 parts of NCO-terminated polyurethane prepolymer;
5-10 parts of filler powder;
0.2-1 part of dispersing agent;
0.5-1.5 parts of defoaming agent;
0.3-0.5 part of antioxidant;
0.5-1.5 parts of leveling agent;
0.1-0.5 part of adhesion promoter;
the balance being solvent;
wherein the NCO-terminated polyurethane prepolymer is prepared by polymerizing 35-45 parts of polyether polyol and 50-60 parts of polyisocyanate and then chain-extending the polymerized polyether polyol by a chain extender;
the filler powder comprises metal alloy powder and cement powder; wherein the metal alloy powder accounts for 60-75% of the total mass of the filler powder, and the cement powder comprises one or two of fly ash powder, slag ash powder and volcanic ash powder;
the metal alloy powder is tin-bismuth-indium alloy powder, wherein the weight percentage of tin, bismuth and indium in the alloy powder is 0.5-0.6:1:1.5-1.8.
2. A metallic hand die joint filling material as claimed in claim 1, wherein the metallic alloy has a particle size of 0.1-10 μm.
3. The metallic hand die joint filling material of claim 1, wherein said polyisocyanate is pure MDI and said polyether polyol is polytetrahydrofuran ether polyol.
4. The metal hand die weld filler material of claim 1, wherein said antioxidant is one of antioxidant 1010 or antioxidant 1076; the leveling agent is an acrylic ester leveling agent; the adhesion promoter is one or more of 3-aminopropyl triethoxysilane, ɣ -mercaptopropyl trimethoxysilane, ɣ -glycidoxypropyl trimethoxysilane, 3-aminopropyl trimethoxysilane, and ɣ -isocyanatopropyl triethoxysilane; the solvent is one or any combination of butyl acetate, dichloromethane and xylene; the dispersing agent is a polyurethane type high polymer dispersing agent; the defoaming agent is an organosilicon defoaming agent.
5. A method for preparing a metal hand form weld filler material as defined in any one of claims 1-4, wherein: the preparation method comprises the following preparation steps:
s1, enabling the whole inside of a reaction container to be positive pressure of nitrogen, preheating the reaction container to 65-85 ℃, then placing polyether polyol and isocyanate into the reaction container to react for 2-2.5 h at the temperature of 65-85 ℃, cooling to normal temperature, adding a chain extender, and reacting for 0.8-1.5h at normal temperature to obtain an NCO-terminated polyurethane prepolymer;
s2, at normal temperature, adding metal alloy powder, a dispersing agent, a defoaming agent, an antioxidant, a leveling agent, an adhesion promoter and a solvent into a stirring container, keeping the temperature of the stirring container within the range of 45-55 ℃, and stirring for 1-1.5h to form a mixture;
s3, adding the mixture in the step S2 into a reaction container in the step S1, and stirring under the conditions of positive pressure of nitrogen and 65-85 ℃ until stirring is uniform;
and S4, carrying out vacuumizing operation on the reaction vessel under the continuous stirring state, maintaining the vacuum state for 60-90min, stopping stirring when the temperature is stable and has a descending trend, filling nitrogen into the reaction vessel to release the vacuum state, and discharging to obtain the metal hand die weld filler.
6. The method for preparing a metal hand die joint filling material according to claim 5, wherein the positive pressure of nitrogen in the steps S1 and S3 is 0.1-0.2Mpa.
7. A metal hand die weld joint treatment process, which is characterized in that a metal hand die weld joint filling material as claimed in any one of claims 1-4 is adopted, and the treatment process comprises manual construction and mechanical construction and specifically comprises the following steps:
during manual construction, injecting a metal hand die welding seam filling material into a caulking gun or an extruder for standby, aligning a discharge port of the caulking gun or the extruder with a hand die welding seam, filling the metal hand die welding seam filling material, repeatedly scraping the metal hand die welding seam filling material along one direction, compacting, filling and scraping off redundant filling materials;
during mechanical construction, the filling material of the metal hand die weld joint is injected into a manual injection gun or a full-automatic glue sprayer for standby, the glue coating amount and the glue coating speed are controlled by the manual injection gun or the full-automatic glue sprayer, a gun holding nozzle is required to move uniformly along one direction during construction by the glue injection gun until the filling material is filled or slightly higher than the weld joint, and finally the redundant filling material is scraped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211201884.8A CN115404037B (en) | 2022-09-29 | 2022-09-29 | Metal hand die weld joint filling material, preparation method and weld joint treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211201884.8A CN115404037B (en) | 2022-09-29 | 2022-09-29 | Metal hand die weld joint filling material, preparation method and weld joint treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115404037A CN115404037A (en) | 2022-11-29 |
| CN115404037B true CN115404037B (en) | 2023-08-15 |
Family
ID=84168258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211201884.8A Active CN115404037B (en) | 2022-09-29 | 2022-09-29 | Metal hand die weld joint filling material, preparation method and weld joint treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115404037B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679737A (en) * | 1992-08-31 | 1994-03-22 | Seikoh Chem Co Ltd | Method for manufacturing vinyl chloride gloves |
| JPH07166075A (en) * | 1993-12-10 | 1995-06-27 | Honny Chem Ind Co Ltd | Resin composition for vinyl chloride resin glove and preparation of vinyl chloride resin glove |
| JP2002256054A (en) * | 2000-12-28 | 2002-09-11 | Nippon Polyurethane Ind Co Ltd | Grouting chemical liquid composition for filling gap and method of filling gap using the same |
| CN1592683A (en) * | 2000-09-11 | 2005-03-09 | 范蒂科股份公司 | Seamless model and method of making a seamless model |
| CN101328383A (en) * | 2008-07-17 | 2008-12-24 | 安徽大学 | Production method for liner gloves aqueous polyurethane coating connection material |
| CN105492001A (en) * | 2014-07-25 | 2016-04-13 | 托米酷跑知识产权股份有限公司 | Article with reactive metals bound to its surface and method of application |
| CN108948999A (en) * | 2018-05-29 | 2018-12-07 | 河北金坤工程材料有限公司 | A kind of interfacial agents and preparation method thereof for non-fragment orbit filleting glue |
| TWI677398B (en) * | 2018-10-24 | 2019-11-21 | 葉均蔚 | Welding method using alloy powder as welding filler material |
| CN111085752A (en) * | 2018-10-24 | 2020-05-01 | 叶均蔚 | Welding method using alloy powder as welding filler |
| CN111482731A (en) * | 2020-05-11 | 2020-08-04 | 湖南翰坤实业有限公司 | Preparation method and application of metal welding material |
| CN213405188U (en) * | 2020-09-08 | 2021-06-11 | 唐山市天弓电子商务有限公司 | Plug-in type replaceable nail-beautifying hand model capable of being positioned |
| CN113005335A (en) * | 2021-02-22 | 2021-06-22 | 李秋明 | Novel aluminum alloy material, thin-wall part and metal hand die |
| CN113736061A (en) * | 2021-09-06 | 2021-12-03 | 山东星宇手套有限公司 | Coagulant-free waterborne polyurethane emulsion for gum dipping labor protection products and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1991608A4 (en) * | 2006-02-23 | 2011-07-20 | Robert N Clausi | Highly filled composite materials |
| EP1927621B1 (en) * | 2006-12-01 | 2010-03-24 | Dow Global Technologies Inc. | Metal filled polyurethane composition and moulds prepared therefrom |
-
2022
- 2022-09-29 CN CN202211201884.8A patent/CN115404037B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679737A (en) * | 1992-08-31 | 1994-03-22 | Seikoh Chem Co Ltd | Method for manufacturing vinyl chloride gloves |
| JPH07166075A (en) * | 1993-12-10 | 1995-06-27 | Honny Chem Ind Co Ltd | Resin composition for vinyl chloride resin glove and preparation of vinyl chloride resin glove |
| CN1592683A (en) * | 2000-09-11 | 2005-03-09 | 范蒂科股份公司 | Seamless model and method of making a seamless model |
| JP2002256054A (en) * | 2000-12-28 | 2002-09-11 | Nippon Polyurethane Ind Co Ltd | Grouting chemical liquid composition for filling gap and method of filling gap using the same |
| CN101328383A (en) * | 2008-07-17 | 2008-12-24 | 安徽大学 | Production method for liner gloves aqueous polyurethane coating connection material |
| CN105492001A (en) * | 2014-07-25 | 2016-04-13 | 托米酷跑知识产权股份有限公司 | Article with reactive metals bound to its surface and method of application |
| CN108948999A (en) * | 2018-05-29 | 2018-12-07 | 河北金坤工程材料有限公司 | A kind of interfacial agents and preparation method thereof for non-fragment orbit filleting glue |
| TWI677398B (en) * | 2018-10-24 | 2019-11-21 | 葉均蔚 | Welding method using alloy powder as welding filler material |
| CN111085752A (en) * | 2018-10-24 | 2020-05-01 | 叶均蔚 | Welding method using alloy powder as welding filler |
| CN111482731A (en) * | 2020-05-11 | 2020-08-04 | 湖南翰坤实业有限公司 | Preparation method and application of metal welding material |
| CN213405188U (en) * | 2020-09-08 | 2021-06-11 | 唐山市天弓电子商务有限公司 | Plug-in type replaceable nail-beautifying hand model capable of being positioned |
| CN113005335A (en) * | 2021-02-22 | 2021-06-22 | 李秋明 | Novel aluminum alloy material, thin-wall part and metal hand die |
| CN113736061A (en) * | 2021-09-06 | 2021-12-03 | 山东星宇手套有限公司 | Coagulant-free waterborne polyurethane emulsion for gum dipping labor protection products and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115404037A (en) | 2022-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104668565B (en) | Feedstock of Powder Injection Molding preparation method and powder injection-molded production method | |
| JPS6051613A (en) | Spherical fused silica and use as filler and resin composition | |
| CN115447048B (en) | Alloy hand mold production process and alloy hand mold structure | |
| CN111676404B (en) | Improved die casting forming method | |
| JPH03232937A (en) | Manufacture of metallic body by injection molding | |
| CN109665849B (en) | Silicon carbide rotor and manufacturing process | |
| CN106670451A (en) | Formula and preparation method of copper alloy feed for powder injection molding | |
| CN115404037B (en) | Metal hand die weld joint filling material, preparation method and weld joint treatment process | |
| CN110066937B (en) | Preparation method of high-strength, high-modulus and high-plasticity ceramic particle aluminum-based composite material | |
| CN110280713B (en) | Adhesive, preparation method and application thereof, coated sand shell mold and preparation method thereof | |
| CN109534837B (en) | Silicon carbide coated graphite sagger and manufacturing process thereof | |
| CN109047649B (en) | Graphite casting mold for improving titanium alloy casting mold filling performance and preparation method thereof | |
| WO2017063406A1 (en) | Aluminum alloy die-casting member defect repairing agent | |
| CN111438357B (en) | Composite material for preparing dumbbell and method for preparing dumbbell by using same | |
| CN111390149B (en) | Casting ladle for casting aluminum alloy | |
| CN115975346B (en) | Epoxy resin premix for OOA cured prepreg and preparation method thereof | |
| CN112692225A (en) | Ultra-high temperature resistant precoated sand | |
| CN104626622B (en) | Preparation process of composite abrasion-resistant layer on metal component | |
| CN114907133B (en) | Silicon-based ceramic core material, preparation method and silicon-based ceramic core | |
| CN111733357A (en) | Preparation method of high-volume-fraction ceramic-reinforced aluminum-based composite material | |
| CN109520777B (en) | Silicon carbide sampling spoon and manufacturing process | |
| CN210261937U (en) | Device for discontinuously preparing liquid high-silicon aluminum alloy or high-silicon aluminum alloy semi-solid slurry | |
| CN112589043B (en) | Pretreatment method of aluminum alloy die-casting die | |
| CN111197131A (en) | Automobile part die-casting method | |
| CN112626367B (en) | Preparation method of nano alumina particle reinforced aluminum-copper alloy composite material |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |