CN112898622A - Foaming agent for foamed plastic and preparation method thereof - Google Patents
Foaming agent for foamed plastic and preparation method thereof Download PDFInfo
- Publication number
- CN112898622A CN112898622A CN202110074105.1A CN202110074105A CN112898622A CN 112898622 A CN112898622 A CN 112898622A CN 202110074105 A CN202110074105 A CN 202110074105A CN 112898622 A CN112898622 A CN 112898622A
- Authority
- CN
- China
- Prior art keywords
- foaming agent
- composite
- barium sulfate
- nano
- silicon dioxide
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
- C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2489/00—Characterised by the use of proteins; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Cosmetics (AREA)
Abstract
The invention discloses a foaming agent for foamed plastic and a preparation method thereof, and particularly relates to the technical field of plastic foaming agents. The nano silicon dioxide can effectively bear various raw materials in the foaming agent; the nano barium sulfate has excellent dispersibility, and can effectively enhance the dispersion effect of the foaming agent in the foamed plastic; the composite spider silk can be used as a flexible framework in the foaming agent to support active ingredients in the foaming agent, and can be used as a venation line of the foaming agent, so that the dispersing effect of the foaming agent in the foamed plastic can be further improved, the foaming agent is more uniformly distributed in the foamed plastic, the coverage of the foaming agent is wider, and after multiple times of ultrasonic treatment, the raw material distribution and combination effect in the foaming agent is better, so that the foaming efficiency of the foaming agent and the utilization rate of the foaming agent are effectively improved, and the using amount of the foaming agent is saved.
Description
Technical Field
The invention relates to the technical field of plastic foaming agents, in particular to a foaming agent for foamed plastics and a preparation method thereof.
Background
The foamed plastic is a high polymer material formed by dispersing a large number of gas micropores in solid plastic, has the characteristics of light weight, heat insulation, sound absorption, shock absorption and the like, has dielectric properties superior to matrix resin, and has wide application range. Almost all kinds of plastics can be made into foamed plastics, and foam molding has become an important field in plastic processing. The foam plastic is a polymer material which takes plastic as a basic component and contains a large amount of bubbles, so that the foam plastic is also a composite plastic which takes gas as a filler, and compared with pure plastic, the foam plastic has many excellent properties, such as light weight, high specific strength, good impact load absorption, good heat insulation and sound insulation properties and the like, thereby being widely applied to the fields of industry, agriculture, buildings, transportation and the like. Since the advent of foamed plastics, the use of foamed plastics has become increasingly widespread, and the variety of foamed plastics is continuously abundant, wherein the more common traditional foamed plastics mainly comprise Polyurethane (PUR), Polystyrene (PS), polyvinyl chloride (PVC), Polyethylene (PE), phenolic resin (PF) and other varieties. The foam is a plastic having many fine pores inside, and is produced by a mechanical method (foaming by introducing air or carbon dioxide while mechanically stirring) or a chemical method (adding a foaming agent).
The existing foaming agent for preparing the foamed plastic has low foaming efficiency and low utilization rate of foaming effect, which causes serious waste of the foaming agent.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a foaming agent for foam and a method for preparing the same.
In order to achieve the purpose, the invention provides the following technical scheme: a foaming agent for foam plastics comprises the following components in percentage by weight: 21.0-27.0% of dimethyl sulfoxide, 15.0-24.0% of sodium bicarbonate, 9.0-12.0% of deionized water, 0.24-0.36% of nano silicon dioxide, 0.18-0.32% of nano barium sulfate, 0.32-0.50% of composite spider silk and the balance of azodicarbonamide;
further, the paint comprises the following components in percentage by weight: 21.0% of dimethyl sulfoxide, 15.0% of sodium bicarbonate, 9.0% of deionized water, 0.24% of nano silicon dioxide, 0.18% of nano barium sulfate, 0.32% of composite spider silk and the balance of azodicarbonamide.
Further, the paint comprises the following components in percentage by weight: 27.0% of dimethyl sulfoxide, 24.0% of sodium bicarbonate, 12.0% of deionized water, 0.36% of nano silicon dioxide, 0.32% of nano barium sulfate, 0.50% of composite spider silk and the balance of azodicarbonamide.
Further, the paint comprises the following components in percentage by weight: 24.0% of dimethyl sulfoxide, 19.50% of sodium bicarbonate, 10.50% of deionized water, 0.30% of nano silicon dioxide, 0.25% of nano barium sulfate, 0.41% of composite spider silk and the balance of azodicarbonamide.
The invention also provides a preparation method of the foaming agent for the foamed plastic, which comprises the following specific preparation steps:
the method comprises the following steps: weighing dimethyl sulfoxide, sodium bicarbonate, deionized water, nano silicon dioxide, nano barium sulfate, composite spider silk and azodicarbonamide according to the weight percentage;
step two: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the dimethyl sulfoxide in the first step for 20-30 min to obtain a composite dimethyl sulfoxide mixed material;
step three: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the sodium bicarbonate in the first step for 20-30 min to obtain a composite sodium bicarbonate mixed material;
step four: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the deionized water in the first step for 20-30 min to obtain a composite dispersion liquid;
step five: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the azodicarbonamide in the first step for 20-30 min to obtain a composite azodicarbonamide mixed material;
step six: mechanically mixing one half of the composite dimethyl sulfoxide mixed material, one half of the composite dispersion liquid and the composite sodium bicarbonate mixed material by weight, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material A;
step seven: mechanically mixing the rest of the composite dimethyl sulfoxide mixed material, the composite dispersion liquid and the composite azodicarbonamide mixed material, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material B;
step eight: and mechanically mixing the foaming agent base material A, the foaming agent base material B, the rest nano silicon dioxide, nano barium sulfate and the composite spider silk, and performing ultrasonic oscillation treatment for 50-60 min to obtain the foaming agent for preparing the foamed plastic.
Further, in the second step, the third step, the fourth step and the fifth step, the ultrasonic oscillation dispersion treatment is performed while the heating treatment is performed at a heating temperature of 40-50 ℃, and in the sixth step, the seventh step and the eighth step, the ultrasonic oscillation dispersion treatment is performed while the heating treatment is performed at a heating temperature of 50-60 ℃.
Further, ultrasonic dispersion treatment is performed for 20min in the second step, the third step, the fourth step and the fifth step, for 40min in the sixth step and the seventh step, and for 50min in the eighth step.
Further, ultrasonic dispersion treatment is carried out for 30min in the second step, the third step, the fourth step and the fifth step, for 50min in the sixth step and the seventh step, and for 60min in the eighth step.
Further, ultrasonic dispersion treatment is carried out for 25min in the second step, the third step, the fourth step and the fifth step, for 45min in the sixth step and the seventh step, and for 55min in the eighth step.
The invention has the technical effects and advantages that:
1. the foaming agent for preparing the foamed plastic, which is prepared by adopting the raw material formula, can effectively improve the foaming efficiency of the foaming agent and the utilization rate of the foaming effect, and effectively save the using amount of the foaming agent; the nano-silica has a spherical microstructure, is in a flocculent and reticular quasi-particle structure, has a porous structure on the surface, can effectively bear various raw materials in the foaming agent, can effectively prolong the quality guarantee period of the foaming agent, and diffuses along with the nano-silica; the nano barium sulfate has excellent dispersibility, can effectively enhance the dispersion effect of the foaming agent in the foamed plastic, and the distribution of the foaming agent in the foamed plastic is quicker and more uniform, so that the foaming efficiency and the utilization efficiency of the foaming agent are effectively improved, and the using amount of the foaming agent can be effectively saved; the composite spider silk can be used as a flexible skeleton in the foaming agent to support active ingredients in the foaming agent, and can be used as a venation line of the foaming agent, the active ingredients in the foaming agent are dispersed into the raw materials of the foamed plastic along the composite spider silk, so that the dispersion effect of the foaming agent in the foamed plastic can be further improved, the foaming agent is more uniformly distributed in the foamed plastic, the coverage of the foaming agent is wider, the foaming efficiency of the foaming agent and the utilization rate of the foaming agent are effectively improved, and the using amount of the foaming agent is saved;
2. in the process of preparing the foaming agent for the foam plastic, in the second step, the third step, the fourth step and the fifth step, dimethyl sulfoxide, sodium bicarbonate, deionized water and azodicarbonamide are respectively subjected to ultrasonic dispersion mixing treatment with nano silicon dioxide, nano barium sulfate and composite spider silk, so that the combination effect of the nano silicon dioxide, the nano barium sulfate and the composite spider silk and other components in the foaming agent is better, and the distribution uniformity of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the foaming agent is further improved; in the sixth step and the seventh step, the full combination treatment effect of the sodium bicarbonate and the azodicarbonamide and the solvent can be respectively improved, and the distribution uniformity of the sodium bicarbonate and the azodicarbonamide in the foaming agent can be effectively improved; and step eight, performing ultrasonic dispersion treatment on the foaming agent base material A, the foaming agent base material B, the residual nano silicon dioxide, the nano barium sulfate and the composite spider silk, so that the distribution uniformity effect of all components in the foaming agent can be further improved, and after multiple ultrasonic treatments, the raw material distribution and combination effect in the foaming agent is better, so that the sodium bicarbonate and the azodicarbonamide in the foaming agent are rapidly dispersed in the foamed plastic, and the foaming efficiency of the foaming agent and the utilization rate of the foaming agent can be further enhanced.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention provides a foaming agent for foam plastic, which comprises the following components in percentage by weight: 21.0% of dimethyl sulfoxide, 15.0% of sodium bicarbonate, 9.0% of deionized water, 0.24% of nano silicon dioxide, 0.18% of nano barium sulfate, 0.32% of composite spider silk and the balance of azodicarbonamide;
the invention also provides a preparation method of the foaming agent for the foamed plastic, which comprises the following specific preparation steps:
the method comprises the following steps: weighing dimethyl sulfoxide, sodium bicarbonate, deionized water, nano silicon dioxide, nano barium sulfate, composite spider silk and azodicarbonamide according to the weight percentage;
step two: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the dimethyl sulfoxide in the first step for 20-30 min to obtain a composite dimethyl sulfoxide mixed material;
step three: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the sodium bicarbonate in the first step for 20-30 min to obtain a composite sodium bicarbonate mixed material;
step four: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the deionized water in the first step for 20-30 min to obtain a composite dispersion liquid;
step five: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the azodicarbonamide in the first step for 20-30 min to obtain a composite azodicarbonamide mixed material;
step six: mechanically mixing one half of the composite dimethyl sulfoxide mixed material, one half of the composite dispersion liquid and the composite sodium bicarbonate mixed material by weight, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material A;
step seven: mechanically mixing the rest of the composite dimethyl sulfoxide mixed material, the composite dispersion liquid and the composite azodicarbonamide mixed material, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material B;
step eight: and mechanically mixing the foaming agent base material A, the foaming agent base material B, the rest nano silicon dioxide, nano barium sulfate and the composite spider silk, and performing ultrasonic oscillation treatment for 50-60 min to obtain the foaming agent for preparing the foamed plastic.
Further, in the second step, the third step, the fourth step and the fifth step, the ultrasonic oscillation dispersion treatment is performed while the heating treatment is performed at a heating temperature of 40-50 ℃, and in the sixth step, the seventh step and the eighth step, the ultrasonic oscillation dispersion treatment is performed while the heating treatment is performed at a heating temperature of 50-60 ℃.
Example 2:
different from the embodiment 1, the material comprises the following components in percentage by weight: 27.0% of dimethyl sulfoxide, 24.0% of sodium bicarbonate, 12.0% of deionized water, 0.36% of nano silicon dioxide, 0.32% of nano barium sulfate, 0.50% of composite spider silk and the balance of azodicarbonamide.
Example 3:
different from the examples 1-2, the material comprises the following components in percentage by weight: 24.0% of dimethyl sulfoxide, 19.50% of sodium bicarbonate, 10.50% of deionized water, 0.30% of nano silicon dioxide, 0.25% of nano barium sulfate, 0.41% of composite spider silk and the balance of azodicarbonamide.
Experiments are respectively carried out on the foaming agent for preparing the foam plastics prepared in the above examples 1-3, the foaming agent of the first control group, the foaming agent of the second control group, the foaming agent of the third control group and the foaming agent of the fourth control group, wherein the foaming agent of the first control group is a common foaming agent on the market, the foaming agent of the second control group is free of nano silica compared with the examples, the foaming agent of the third control group is free of nano barium sulfate compared with the examples, the foaming agent of the fourth control group is free of composite spider silk compared with the examples, the foaming agent prepared in the three examples and the foaming agent of the four control groups are respectively tested in seven groups, each 30 samples are taken as one group, and the test results are shown in the table one:
table one:
as can be seen from Table I, the raw material ratio of the foaming agent for preparing the foam plastic is as follows: comprises the following components in percentage by weight: 24.0% of dimethyl sulfoxide, 19.50% of sodium bicarbonate, 10.50% of deionized water, 0.30% of nano silicon dioxide, 0.25% of nano barium sulfate, 0.41% of composite spider silk and the balance of azodicarbonamide, so that the foaming efficiency of the foaming agent and the utilization rate of the foaming effect can be effectively improved, and the dosage of the foaming agent can be effectively saved; therefore, the example 3 is a preferred embodiment of the invention, and azodicarbonamide and sodium bicarbonate in the formula are main components in the foaming agent and provide a foaming function for the foaming agent; dimethyl sulfoxide and deionized water are used as solvents in the foaming agent, so that various raw materials in the foaming agent are more uniformly dispersed and fused, and the raw materials are integrated; the nano silicon dioxide has optical performance of resisting ultraviolet rays, can improve the ageing resistance, strength and chemical resistance of other materials, and has very wide application; the nano-scale silicon dioxide is amorphous white powder, is non-toxic, tasteless and pollution-free, has a spherical microstructure and is in a flocculent and reticular quasi-particle structure, the surface of the nano-scale silicon dioxide is in a porous structure, various raw materials in the foaming agent can be effectively borne, the quality guarantee period of the foaming agent can be effectively prolonged, and the foaming agent is diffused along with the nano-scale silicon dioxide, so that the foaming efficiency of the foaming agent in the foamed plastic is higher, and the utilization rate of the foaming agent is higher; the nano barium sulfate has the advantages of strong chemical inertia, good stability, acid and alkali resistance, moderate hardness, high specific gravity, high whiteness, capability of absorbing harmful rays and the like; the nano barium sulfate has excellent dispersibility, can effectively enhance the dispersion effect of the foaming agent in the foamed plastic, is distributed in the foamed plastic more quickly and uniformly, further effectively improves the foaming efficiency of the foaming agent and the utilization efficiency of the foaming agent, can effectively save the using amount of the foaming agent, can enhance the glossiness, high temperature resistance, ultraviolet resistance, strength, rigidity and wear resistance of the foamed plastic, and resists impact and cracking; the composite spider silk is formed by combining spider silk protein, fibroin and other related five proteins, and internal cells are combined, so that the mechanical property is strong, the strength is high, the elasticity is excellent, the composite spider silk can be used as a flexible framework in a foaming agent to support effective components in the foaming agent, meanwhile, the composite spider silk can be used as a venation line of the foaming agent, the effective components in the foaming agent are dispersed into raw materials in the foam plastic along the composite spider silk, the dispersing effect of the foaming agent in the foam plastic can be further improved, the foaming agent is more uniformly distributed in the foam plastic, the coverage of the foaming agent is wider, the foaming efficiency of the foaming agent and the utilization rate of the foaming agent are effectively improved, and the using amount of the foaming agent is saved.
Example 4
In the above preferred technical scheme, the present invention provides a foaming agent for preparing foam plastics, which comprises the following components by weight: 24.0% of dimethyl sulfoxide, 19.50% of sodium bicarbonate, 10.50% of deionized water, 0.30% of nano silicon dioxide, 0.25% of nano barium sulfate, 0.41% of composite spider silk and the balance of azodicarbonamide.
The invention also provides a preparation method of the foaming agent for preparing the foam plastic, which comprises the following specific preparation steps:
the method comprises the following steps: weighing dimethyl sulfoxide, sodium bicarbonate, deionized water, nano silicon dioxide, nano barium sulfate, composite spider silk and azodicarbonamide according to the weight percentage;
step two: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the dimethyl sulfoxide in the first step for 20-30 min to obtain a composite dimethyl sulfoxide mixed material;
step three: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the sodium bicarbonate in the first step for 20-30 min to obtain a composite sodium bicarbonate mixed material;
step four: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the deionized water in the first step for 20-30 min to obtain a composite dispersion liquid;
step five: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the azodicarbonamide in the first step for 20-30 min to obtain a composite azodicarbonamide mixed material;
step six: mechanically mixing one half of the composite dimethyl sulfoxide mixed material, one half of the composite dispersion liquid and the composite sodium bicarbonate mixed material by weight, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material A;
step seven: mechanically mixing the rest of the composite dimethyl sulfoxide mixed material, the composite dispersion liquid and the composite azodicarbonamide mixed material, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material B;
step eight: and mechanically mixing the foaming agent base material A, the foaming agent base material B, the rest nano silicon dioxide, nano barium sulfate and the composite spider silk, and performing ultrasonic oscillation treatment for 50-60 min to obtain the foaming agent for preparing the foamed plastic.
And heating the ultrasonic oscillation dispersion treatment in the second step, the third step, the fourth step and the fifth step at 40-50 ℃, and heating the ultrasonic oscillation dispersion treatment in the sixth step, the seventh step and the eighth step at 50-60 ℃.
Ultrasonic dispersion treatment is carried out for 25min in the second step, the third step, the fourth step and the fifth step, for 45min in the sixth step and the seventh step, and for 55min in the eighth step.
Example 5
Different from example 4, ultrasonic dispersion treatment was performed for 30min in step two, step three, step four and step five, for 50min in step six and step seven, and for 60min in step eight.
Example 6
Unlike examples 4 to 5, the ultrasonic dispersion treatment was carried out for 20min in the second, third, fourth and fifth steps, for 40min in the sixth and seventh steps, and for 50min in the eighth step.
Experiments were conducted on the foaming agents for preparing foam prepared in examples 4 to 6, respectively, and the foaming agents of control group five, control group six, control group seven, control group eight, control group nine and control group ten, wherein the foaming agents of control group five directly mix all the raw materials compared with the examples, the foaming agents of control group six do not have the operation of step two compared with the examples, the foaming agents of control group seven do not have the operation of step three compared with the examples, the foaming agents of control group eight do not have the operation of step four compared with the examples, the foaming agents of control group nine do not have the operation of step five compared with the examples, and the foaming agents of control group ten do all mix the raw materials directly before the step six compared with the foaming agents of the examples; the blowing agent prepared in the three examples and the blowing agent of the six control groups were tested in nine groups, one group for each 30 samples, and the test results are shown in table two:
table two:
as can be seen from table two, in the process of preparing the foaming agent for foam plastics, when the preparation method in the embodiment four is the preferred scheme of the present invention, in the step two, the dimethyl sulfoxide, part of the nano silica, the nano barium sulfate and the composite spider silk are subjected to the ultrasonic dispersion mixing treatment, so that the combination effect of the nano silica, the nano barium sulfate and the composite spider silk and the solvent dimethyl sulfoxide is better, and the distribution uniformity degree of the nano silica, the nano barium sulfate and the composite spider silk in the foaming agent is further improved; in the third step, the sodium bicarbonate, partial nano-silica, nano-barium sulfate and composite spider silk are subjected to ultrasonic dispersion mixing treatment, so that the combination effect of the nano-silica, the nano-barium sulfate, the composite spider silk and the sodium bicarbonate is better, and the distribution uniformity of the nano-silica, the nano-barium sulfate and the composite spider silk in the foaming agent is further improved; in the fourth step, the deionized water, partial nano silicon dioxide, nano barium sulfate and composite spider silk are subjected to ultrasonic dispersion mixing treatment, so that the combination effect of the nano silicon dioxide, the nano barium sulfate and the composite spider silk with solvent deionized water is better, and the distribution uniformity of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the foaming agent is further improved; in the fifth step, ultrasonic dispersing and mixing treatment is carried out on azodicarbonamide, partial nano silicon dioxide, nano barium sulfate and composite spider silk, so that the combination effect of the nano silicon dioxide, the nano barium sulfate and the composite spider silk and the azodicarbonamide is better, and the distribution uniformity of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the foaming agent is improved; in the sixth step, the composite sodium bicarbonate mixed material, part of the composite dimethyl sulfoxide mixed material and the composite dispersion liquid are subjected to ultrasonic mixing, so that the full combination treatment effect of the sodium bicarbonate and the solvent can be improved, and the distribution uniformity of the sodium bicarbonate in the foaming agent can be effectively improved; in the seventh step, the composite azodicarbonamide mixed material, the rest composite dimethyl sulfoxide mixed material and the composite dispersion liquid are subjected to ultrasonic mixing, so that the full combination treatment effect of azodicarbonamide and a solvent can be improved, and the distribution uniformity of azodicarbonamide in the foaming agent can be effectively improved; and step eight, performing ultrasonic dispersion treatment on the foaming agent base material A, the foaming agent base material B, the residual nano silicon dioxide, the nano barium sulfate and the composite spider silk, so that the distribution uniformity effect of all components in the foaming agent can be further improved, and after multiple ultrasonic treatments, the raw material distribution and combination effect in the foaming agent is better, so that the sodium bicarbonate and the azodicarbonamide in the foaming agent are rapidly dispersed in the foamed plastic, and the foaming efficiency of the foaming agent and the utilization rate of the foaming agent can be further enhanced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A foaming agent for foam plastics, which is characterized in that: comprises the following components in percentage by weight: 21.0-27.0% of dimethyl sulfoxide, 15.0-24.0% of sodium bicarbonate, 9.0-12.0% of deionized water, 0.24-0.36% of nano silicon dioxide, 0.18-0.32% of nano barium sulfate, 0.32-0.50% of composite spider silk and the balance of azodicarbonamide.
2. The blowing agent for foam according to claim 1, wherein: comprises the following components in percentage by weight: 21.0% of dimethyl sulfoxide, 15.0% of sodium bicarbonate, 9.0% of deionized water, 0.24% of nano silicon dioxide, 0.18% of nano barium sulfate, 0.32% of composite spider silk and the balance of azodicarbonamide.
3. The blowing agent for foam according to claim 1, wherein: comprises the following components in percentage by weight: 27.0% of dimethyl sulfoxide, 24.0% of sodium bicarbonate, 12.0% of deionized water, 0.36% of nano silicon dioxide, 0.32% of nano barium sulfate, 0.50% of composite spider silk and the balance of azodicarbonamide.
4. The blowing agent for foam according to claim 1, wherein: comprises the following components in percentage by weight: 24.0% of dimethyl sulfoxide, 19.50% of sodium bicarbonate, 10.50% of deionized water, 0.30% of nano silicon dioxide, 0.25% of nano barium sulfate, 0.41% of composite spider silk and the balance of azodicarbonamide.
5. The method for preparing a blowing agent for foam according to any one of claims 1 to 4, wherein: the preparation method comprises the following specific steps:
the method comprises the following steps: weighing dimethyl sulfoxide, sodium bicarbonate, deionized water, nano silicon dioxide, nano barium sulfate, composite spider silk and azodicarbonamide according to the weight percentage;
step two: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the dimethyl sulfoxide in the first step for 20-30 min to obtain a composite dimethyl sulfoxide mixed material;
step three: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the sodium bicarbonate in the first step for 20-30 min to obtain a composite sodium bicarbonate mixed material;
step four: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the deionized water in the first step for 20-30 min to obtain a composite dispersion liquid;
step five: carrying out ultrasonic oscillation dispersion treatment on one fifth of the weight parts of the nano silicon dioxide, the nano barium sulfate and the composite spider silk in the first step and the azodicarbonamide in the first step for 20-30 min to obtain a composite azodicarbonamide mixed material;
step six: mechanically mixing one half of the composite dimethyl sulfoxide mixed material, one half of the composite dispersion liquid and the composite sodium bicarbonate mixed material by weight, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material A;
step seven: mechanically mixing the rest of the composite dimethyl sulfoxide mixed material, the composite dispersion liquid and the composite azodicarbonamide mixed material, and performing ultrasonic oscillation dispersion treatment for 40-50 min to obtain a foaming agent base material B;
step eight: and mechanically mixing the foaming agent base material A, the foaming agent base material B, the rest nano silicon dioxide, nano barium sulfate and the composite spider silk, and performing ultrasonic oscillation treatment for 50-60 min to obtain the foaming agent for preparing the foamed plastic.
6. The method for preparing a blowing agent for foam according to claim 5, wherein: and performing ultrasonic oscillation dispersion treatment and heating treatment simultaneously in the second step, the third step, the fourth step and the fifth step, wherein the heating temperature is 40-50 ℃.
7. The method for preparing a blowing agent for foam according to claim 6, wherein: and in the sixth step, the seventh step and the eighth step, heating treatment is carried out while ultrasonic oscillation dispersion treatment is carried out, and the heating temperature is 50-60 ℃.
8. The method for preparing a blowing agent for foam according to claim 5, wherein: ultrasonic dispersion treatment is carried out for 20min in the second step, the third step, the fourth step and the fifth step, for 40min in the sixth step and the seventh step, and for 50min in the eighth step.
9. The method for preparing a blowing agent for foam according to claim 5, wherein: ultrasonic dispersion treatment is carried out for 30min in the second step, the third step, the fourth step and the fifth step, for 50min in the sixth step and the seventh step, and for 60min in the eighth step.
10. The method for preparing a blowing agent for foam according to claim 5, wherein: ultrasonic dispersion treatment is carried out for 25min in the second step, the third step, the fourth step and the fifth step, for 45min in the sixth step and the seventh step, and for 55min in the eighth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074105.1A CN112898622A (en) | 2021-01-20 | 2021-01-20 | Foaming agent for foamed plastic and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074105.1A CN112898622A (en) | 2021-01-20 | 2021-01-20 | Foaming agent for foamed plastic and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112898622A true CN112898622A (en) | 2021-06-04 |
Family
ID=76116451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110074105.1A Withdrawn CN112898622A (en) | 2021-01-20 | 2021-01-20 | Foaming agent for foamed plastic and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112898622A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274999A (en) * | 2007-03-30 | 2008-10-01 | 北京化工大学 | Novel composite vesicant |
| CN103205011A (en) * | 2013-03-04 | 2013-07-17 | 鲁奎 | Melamine-formaldehyde foamed plastic foaming agent |
| CN107022102A (en) * | 2017-04-27 | 2017-08-08 | 北京化工大学 | Monodisperse mesoporous silica preparation method and nanocomposite foaming agent, preparation method and application |
| CN107033381A (en) * | 2017-03-20 | 2017-08-11 | 北京化工大学 | Nanocomposite foaming agent, foaming product and its preparation method and application |
-
2021
- 2021-01-20 CN CN202110074105.1A patent/CN112898622A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274999A (en) * | 2007-03-30 | 2008-10-01 | 北京化工大学 | Novel composite vesicant |
| CN103205011A (en) * | 2013-03-04 | 2013-07-17 | 鲁奎 | Melamine-formaldehyde foamed plastic foaming agent |
| CN107033381A (en) * | 2017-03-20 | 2017-08-11 | 北京化工大学 | Nanocomposite foaming agent, foaming product and its preparation method and application |
| CN107022102A (en) * | 2017-04-27 | 2017-08-08 | 北京化工大学 | Monodisperse mesoporous silica preparation method and nanocomposite foaming agent, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021004458A1 (en) | Ion exchange-type nanofiber skeleton three-dimensional separation material having controllable structure, and preparation method for same | |
| CN107177052B (en) | Light polyether-ether-ketone or composite material plate with different crystallinities and preparation method thereof | |
| CN107556449A (en) | A kind of sub-micron SiO2The preparation method of/poly ethyldiol modified polyurathamc composite | |
| CN110343286B (en) | Poly (butylene succinate) ionomer foam and preparation method and application thereof | |
| CN110760174B (en) | Polycarbonate-based light diffusion material and preparation process thereof | |
| CN112679788A (en) | Nano composite foaming agent for preparing polyurethane and preparation method thereof | |
| CN111647266A (en) | Polyurethane foam material and preparation method thereof | |
| CN106117741A (en) | A kind of polyethylene composite foam material and preparation method thereof | |
| CN107033493A (en) | A kind of string environment friendly decoration board | |
| CN112898622A (en) | Foaming agent for foamed plastic and preparation method thereof | |
| CN111286102A (en) | Light nylon elastomer foam material and preparation method thereof | |
| CN109776847A (en) | A kind of low dielectric poly (arylene ether nitrile) foamed material, Preparation method and use with bimodal cell structure | |
| CN108659251A (en) | The preparation method of polyetherimide expanded particle | |
| CN112920364A (en) | Polyurethane foam based on graphene modification and preparation method thereof | |
| CN111793333A (en) | Preparation method of PET foam core material for wind power blade | |
| CN109942876A (en) | A kind of foaming method of polypropylene expanded particle | |
| CN109233126A (en) | A kind of flame-retardant expanded plate of polystyrene and preparation method | |
| CN109880218B (en) | Water-blown antibacterial breathable microporous film master batch, film and preparation method | |
| CN114957857A (en) | High-toughness BOPP film and manufacturing method thereof | |
| CN112795094A (en) | PP alloy material capable of releasing negative oxygen ions and preparation method and application thereof | |
| CN111607177B (en) | High-strength high-modulus polyvinyl chloride foam and preparation method thereof | |
| CN109485898A (en) | A kind of cornstarch based foam material and preparation method thereof | |
| CN116715935B (en) | Building thermal insulation material and preparation method thereof | |
| CN109266006A (en) | A kind of preparation method of silicone sponge | |
| CN110423460A (en) | A kind of foamed plastic 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210604 |
|
| WW01 | Invention patent application withdrawn after publication |