CN113684081B - Composite wax for PVC (polyvinyl chloride) pipeline and preparation method thereof - Google Patents
Composite wax for PVC (polyvinyl chloride) pipeline and preparation method thereof Download PDFInfo
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
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- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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Abstract
The invention provides a composite wax for a PVC pipeline and a preparation method thereof, belonging to the technical field of composite wax, wherein the composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 20-30 parts of paraffin, 15-25 parts of VP copolymer, 10-15 parts of vegetable wax, 20-35 parts of oxidized polyethylene wax, 5-10 parts of stearic acid, 6-12 parts of filler, 3-7 parts of polyolefin, 10-20 parts of vinyl bis stearamide, 10-30 parts of pigment powder, 1-2 parts of dispersing agent, 2-5 parts of defoaming agent and 1-4 parts of thickening agent; in the scheme, the paraffin, the plant wax, the oxidized polyethylene wax and the stearic acid are compounded for use, and the prepared composite wax can well improve the overall uniformity and lubricity, so that the composite wax can be applied to PVC pipelines and can improve the performance of the PVC pipelines.
Description
Technical Field
The invention belongs to the technical field of composite wax, and particularly relates to composite wax for a PVC pipeline and a preparation method thereof.
Background
PVC is a material with the main component of polyvinyl chloride and other components added to enhance the heat resistance, toughness and ductility of the PVC for short. The top layer of the surface film is paint, the middle layer is polyvinyl chloride, and the bottom layer is back-coated adhesive. It is a synthetic material that is enjoyed, popular and widely used in the world today. Its global usage is second highest among various synthetic materials. It is only in 1995 a year that PVC has been statistically produced in europe at around five million tons and consumed at five million thirty million tons. Wax is generally added during its production to improve its properties.
When the existing wax is used for PVC pipelines, all components are simply mixed to be applied to the surface of a paint film of the PVC pipeline, and different components and the paint film of the pipeline have poor compatibility and are easy to fall off from the surface of the paint film of the pipeline, so that a product which has strong bonding property with the paint film on the surface of the PVC pipeline and lasting protection effect is required in the market to achieve the purposes of protecting the PVC pipeline and beautifying the appearance.
Disclosure of Invention
The invention aims to provide a composite wax for PVC pipelines and a preparation method thereof, and aims to solve the problem that when the wax in the prior art is used for PVC pipelines, all components are simply mixed to be applied to the surface of a PVC pipeline film, and the wax is easy to fall off from the surface of the pipeline film due to poor compatibility among different components and pipeline films.
In order to achieve the purpose, the invention provides the following technical scheme:
the composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 20-30 parts of paraffin, 15-25 parts of VP copolymer, 10-15 parts of vegetable wax, 20-35 parts of oxidized polyethylene wax, 5-10 parts of stearic acid, 6-12 parts of filler, 3-7 parts of polyolefin, 10-20 parts of vinyl bis stearamide, 10-30 parts of pigment powder, 1-2 parts of dispersing agent, 2-5 parts of defoaming agent and 1-4 parts of thickening agent. The wax aims to solve the problem that when the wax in the prior art is used for a PVC pipeline, all components are simply mixed to be applied to the surface of a PVC pipeline film, and the wax is easy to fall off from the surface of the pipeline film due to poor compatibility among different components and the pipeline film.
As a preferable scheme of the invention, the filler is prepared by mixing one or more raw materials of butyl rubber, calcium carbonate particles and white carbon black according to any proportion.
In a preferred embodiment of the present invention, the pigment powder is an inorganic pigment.
As a preferable scheme of the invention, the dispersing agent is prepared by mixing one or more raw materials of methyl methacrylate, glycol, acrylic acid and an organic solvent according to any proportion.
As a preferable scheme of the invention, the defoaming agent is prepared by mixing one or more raw materials of silicon paste, acrylate polymer and distearyl diethylamine according to any proportion.
As a preferable scheme of the invention, the thickening agent is prepared by mixing one or more raw materials of octadecylamine, organobentonite and dibenzylidene sorbitol according to any proportion.
As a preferable scheme of the invention, the fertilizer comprises the following raw materials in parts by weight: 22-28 parts of paraffin, 17-23 parts of VP copolymer, 11-14 parts of vegetable wax, 23-32 parts of oxidized polyethylene wax, 6-9 parts of stearic acid, 7-11 parts of filler, 4-6.5 parts of polyolefin, 12-18 parts of vinyl bis stearamide, 14-26 parts of pigment powder, 1.2-1.8 parts of dispersing agent, 2.5-4.5 parts of defoaming agent and 1.5-3.5 parts of thickening agent.
As a preferable scheme of the invention, the fertilizer comprises the following raw materials in parts by weight: 24-26 parts of paraffin, 19-21 parts of VP copolymer, 12-13 parts of vegetable wax, 25-30 parts of oxidized polyethylene wax, 7-8 parts of stearic acid, 8-10 parts of filler, 4.5-6 parts of polyolefin, 14-16 parts of vinyl bis stearamide, 18-22 parts of pigment powder, 1.4-1.6 parts of dispersing agent, 3-4 parts of defoaming agent and 2-3 parts of thickening agent.
As a preferable scheme of the invention, the fertilizer comprises the following raw materials in parts by weight: 25 parts of paraffin, 20 parts of VP copolymer, 12.5 parts of vegetable wax, 27 parts of oxidized polyethylene wax, 7.5 parts of stearic acid, 9 parts of filler, 5 parts of polyolefin, 15 parts of vinyl bis-stearamide, 20 parts of pigment powder, 1.5 parts of dispersing agent, 3.5 parts of defoaming agent and 2.5 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
Compared with the prior art, the invention has the beneficial effects that:
1. in the scheme, the paraffin, the plant wax, the oxidized polyethylene wax and the stearic acid are compounded for use, and the prepared composite wax can well improve the overall uniformity and lubricity, so that the composite wax can be applied to PVC pipelines and can improve the performance of the PVC pipelines.
2. In this scheme, through the filler of interpolation, and the filler is by butyl rubber, mix from calcium carbonate granule and white carbon black in and make for the holistic wearability of composite wax improves, and after composite wax solidification, further improves the wearability of PVC pipeline, improves the performance of PVC pipeline.
3. In the scheme, the prepared composite wax can be better mixed with a PVC pipeline paint film when being applied by adding the dispersant, is not easy to cause color brightness, and does not influence the quality of a coloring product.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a preparation method of the composite wax for the PVC pipe in the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings 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 of the 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
Referring to fig. 1, the present invention provides the following technical solutions:
the composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 20 parts of paraffin, 15 parts of VP copolymer, 10 parts of vegetable wax, 20 parts of oxidized polyethylene wax, 5 parts of stearic acid, 6 parts of filler, 3 parts of polyolefin, 10 parts of vinyl bis stearamide, 10 parts of pigment powder, 1 part of dispersing agent, 2 parts of defoaming agent and 1 part of thickening agent.
In the specific embodiment of the invention, the paraffin, the vegetable wax, the oxidized polyethylene wax and the stearic acid are added for compounding, so that the prepared composite wax can well improve the integral uniformity and lubricity, the performance of a PVC pipeline can be improved when the composite wax is applied to the PVC pipeline, the components of the filler are all wear-resistant shapes, and the wear resistance of the composite wax can be better improved when the filler is doped in the composite wax, so that the effect is better when the composite wax is applied to the surface of the PVC pipeline, the prepared composite wax can be better mixed with a paint film of the PVC pipeline by the dispersant, the color is not bright easily, and the quality of a coloring product is not influenced.
Specifically, the filler is prepared by mixing one or more raw materials of butyl rubber, calcium carbonate particles and white carbon black according to any proportion. .
Specifically, the pigment powder is an inorganic pigment.
Specifically, the dispersing agent is prepared by mixing one or more raw materials of methyl methacrylate, ethylene glycol, acrylic acid and an organic solvent according to any proportion.
Specifically, the defoaming agent is prepared by mixing one or more of silicon paste, acrylate polymer and distearyl diethylamine according to any proportion.
Specifically, the thickening agent is prepared by mixing one or more raw materials of octadecylamine, organobentonite and dibenzylidene sorbitol according to any proportion.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
Example 2
The composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 22 parts of paraffin, 17-parts of VP copolymer, 11 parts of vegetable wax, 23 parts of oxidized polyethylene wax, 6 parts of stearic acid, 7 parts of filler, 4 parts of polyolefin, 12 parts of vinyl bis-stearamide, 14 parts of pigment powder, 1.2 parts of dispersing agent, 2.5 parts of defoaming agent and 1.5 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the parts by weight, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5 hours at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out through an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 2 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
Example 3
The composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 24 parts of paraffin, 19 parts of VP copolymer, 12-parts of vegetable wax, 25 parts of oxidized polyethylene wax, 7 parts of stearic acid, 8 parts of filler, 4.5 parts of polyolefin, 14 parts of vinyl bis-stearamide, 18 parts of pigment powder, 1.4 parts of dispersing agent, 3 parts of defoaming agent and 2 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the parts by weight, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5 hours at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 3 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
Example 4
The composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 25 parts of paraffin, 20 parts of VP copolymer, 12.5 parts of vegetable wax, 27 parts of oxidized polyethylene wax, 7.5 parts of stearic acid, 9 parts of filler, 5 parts of polyolefin, 15 parts of vinyl bis-stearamide, 20 parts of pigment powder, 1.5 parts of dispersing agent, 3.5 parts of defoaming agent and 2.5 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 4 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
Example 5
The composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 26 parts of paraffin, 21 parts of VP copolymer, 13 parts of vegetable wax, 30 parts of oxidized polyethylene wax, 8 parts of stearic acid, 10 parts of filler, 6 parts of polyolefin, 16 parts of vinyl bis stearamide, 22 parts of pigment powder, 1.6 parts of dispersing agent, 4 parts of defoaming agent and 3 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out through an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 5 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
Example 6
The composite wax for the PVC pipeline comprises the following raw materials in parts by weight: 28 parts of paraffin, 23 parts of VP copolymer, 14 parts of vegetable wax, 32 parts of oxidized polyethylene wax, 9 parts of stearic acid, 11 parts of filler, 6.5 parts of polyolefin, 18 parts of vinyl bis stearamide, 26 parts of pigment powder, 1.8 parts of dispersing agent, 4.5 parts of defoaming agent and 3.5 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 6 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
Example 7
The composite wax for the PVC pipeline comprises, by weight, 30 parts of raw material paraffin, 25 parts of VP copolymer, 15 parts of vegetable wax, 35 parts of oxidized polyethylene wax, 10 parts of stearic acid, 12 parts of filler, 7 parts of polyolefin, 20 parts of vinyl bis stearamide, 30 parts of pigment powder, 2 parts of dispersing agent, 5 parts of defoaming agent and 4 parts of thickening agent.
A preparation method of the composite wax for the PVC pipeline comprises the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out by an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
It should be noted that: example 7 was prepared in the same manner as in example 1 except that the weight parts of the raw materials were different.
When the composite wax for PVC pipes prepared by the methods of examples 1 to 7 is used for pipes, the detection and analysis are performed, and compared with the prior art, the following data are obtained, as shown in table 1:
TABLE 1
| Examples | Abrasion resistance g/cm 2 ≤0.01 | Viscosity of the oil | Impact toughness | Dispersibility |
| Example 1 | 0.0075 | 8Pa·s | 28.8kj/m 2 | Superior food |
| Example 2 | 0.0084 | 6.5Pa·s | 28.5kj/m 2 | Good wine |
| Example 3 | 0.0068 | 7.5Pa·s | 28kj/m 2 | Youyou (an instant noodle) |
| Example 4 | 0.0075 | 9.5Pa·s | 29.5kj/m 2 | Youyou (an instant noodle) |
| Example 5 | 0.0075 | 5.6Pa·s | 27kj/m 2 | Good wine |
| Example 6 | 0.0097 | 8.6Pa·s | 27.6kj/m 2 | Superior food |
| Example 7 | 0.0045 | 8Pa·s | 26.5kj/m 2 | Superior food |
| Prior Art | 0.0050 | 4Pa·s | 22kj/m 2 | Good wine |
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 (5)
1. The composite wax for the PVC pipeline is characterized by comprising the following raw materials in parts by weight: 20-30 parts of paraffin, 15-25 parts of VP copolymer, 10-15 parts of vegetable wax, 20-35 parts of oxidized polyethylene wax, 5-10 parts of stearic acid, 6-12 parts of filler, 3-7 parts of polyolefin, 10-20 parts of vinyl bis stearamide, 10-30 parts of pigment powder, 1-2 parts of dispersing agent, 2-5 parts of defoaming agent and 1-4 parts of thickening agent;
the filler is prepared by mixing one or more raw materials of butyl rubber, calcium carbonate particles and white carbon black according to any proportion;
the pigment powder is an inorganic pigment;
the dispersing agent is prepared by mixing one or more of methyl methacrylate, glycol, acrylic acid and an organic solvent according to any proportion;
the defoaming agent is prepared by mixing one or more of silicon paste, acrylate polymer and distearyl diethylamine according to any proportion;
the thickening agent is prepared by mixing one or more raw materials of octadecylamine, organic bentonite and dibenzylidene sorbitol according to any proportion.
2. The composite wax for the PVC pipeline as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 22-28 parts of paraffin, 17-23 parts of VP copolymer, 11-14 parts of vegetable wax, 23-32 parts of oxidized polyethylene wax, 6-9 parts of stearic acid, 7-11 parts of filler, 4-6.5 parts of polyolefin, 12-18 parts of vinyl bis stearamide, 14-26 parts of pigment powder, 1.2-1.8 parts of dispersing agent, 2.5-4.5 parts of defoaming agent and 1.5-3.5 parts of thickening agent.
3. The composite wax for the PVC pipeline as claimed in claim 2, which is characterized by comprising the following raw materials in parts by weight: 24-26 parts of paraffin, 19-21 parts of VP copolymer, 12-13 parts of vegetable wax, 25-30 parts of oxidized polyethylene wax, 7-8 parts of stearic acid, 8-10 parts of filler, 4.5-6 parts of polyolefin, 14-16 parts of vinyl bis stearamide, 18-22 parts of pigment powder, 1.4-1.6 parts of dispersing agent, 3-4 parts of defoaming agent and 2-3 parts of thickening agent.
4. The composite wax for the PVC pipeline as claimed in claim 3, which is characterized by comprising the following raw materials in parts by weight: 25 parts of paraffin, 20 parts of VP copolymer, 12.5 parts of vegetable wax, 27 parts of oxidized polyethylene wax, 7.5 parts of stearic acid, 9 parts of filler, 5 parts of polyolefin, 15 parts of vinyl bis-stearamide, 20 parts of pigment powder, 1.5 parts of dispersing agent, 3.5 parts of defoaming agent and 2.5 parts of thickening agent.
5. The method for preparing the composite wax for the PVC pipeline, which is described in the claim 4, is characterized by comprising the following steps:
s1: sampling according to the weight parts, adding paraffin, VP copolymer, vegetable wax, oxidized polyethylene wax, stearic acid, filler, polyolefin, vinyl bis stearamide and pigment powder into a melting and stirring reaction kettle, and stirring for 1-1.5h at the temperature of 80-100 ℃; then sequentially adding pigment powder, a dispersing agent, a defoaming agent and a thickening agent, and continuously stirring for 30-50min under the condition that the rotating speed of a rotating rod is 200r/min to obtain a liquid mixture for later use;
s2: standing the primary mixture in the step S1, and naturally cooling to obtain a solid mixture for later use;
s3: putting the solid mixture formed in the step S2 into a double-screw extruder for granulation to obtain a granular mixture; and then injection molding is carried out through an injection molding machine, so as to obtain the composite wax for the PVC pipeline.
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| CN111607238A (en) * | 2020-07-03 | 2020-09-01 | 江苏法迩蜡业有限公司 | Composite wax for PVC (polyvinyl chloride) stone-plastic floor and preparation method thereof |
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