CN112552620A - PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate and preparation method thereof - Google Patents
PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate and preparation method thereof Download PDFInfo
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- CN112552620A CN112552620A CN202011489870.1A CN202011489870A CN112552620A CN 112552620 A CN112552620 A CN 112552620A CN 202011489870 A CN202011489870 A CN 202011489870A CN 112552620 A CN112552620 A CN 112552620A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof, wherein the PVC pipe comprises the following raw materials in parts by weight: 40-55% of polyvinyl chloride resin; 20-30% of nano calcium carbonate powder by mass; 6-10% by mass of glass fiber; 3-5% of paraffin by mass; 4-8% of coupling agent by mass; 2-4% of stabilizer, 2-5% of modifier, 1-2% of PE wax, 2-4% of titanium dioxide powder, 3-4% of silicon dioxide powder, 2-3% of barium sulfate and 1-3% of talcum powder. The PVC pipeline manufacturing process can effectively improve or adjust the rigidity, toughness, finish degree and bending strength of the PVC pipeline, also improves the processing performance, rheological property, size stability and heat-resisting stability of the PVC pipeline, can replace part of expensive fillers and aids, and reduces the dosage of resin, thereby reducing the production cost of the PVC pipeline.
Description
Technical Field
The invention relates to the technical field of PVC pipes, in particular to a PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof.
Background
The nano active calcium carbonate has filling and reinforcing functions when being used in high polymer materials such as plastics, rubber and the like, can improve the mechanical property of the PVC pipeline, increases the using amount of the filler under the condition of ensuring the unchanged performance, reduces the comprehensive cost of products, and improves the market competitiveness of the PVC pipeline. Therefore, the nano calcium carbonate is more and more widely applied in the fields of plastics, rubber, adhesives, printing ink and the like, and particularly the nano calcium carbonate is used in the largest amount in polyvinyl chloride (PVC) products. The nano active calcium carbonate can be developed into PVC pipelines with different purposes due to different surface treating agents and different activation processes.
Currently, existing PVC tubing has some disadvantages, for example; the existing PVC pipe cannot effectively improve or adjust the rigidity, toughness, finish and bending strength of a PVC pipeline in the manufacturing process, the processing performance, rheological property, size stability and heat-resistant stability of the PVC pipeline are poor, part of expensive fillers and aids cannot be replaced, and the using amount of resin is large, so that the production cost of the PVC pipeline is increased.
Disclosure of Invention
The invention aims to provide a PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof, and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof comprise the following raw materials in parts by weight: 40-55% of polyvinyl chloride resin; 20-30% of nano calcium carbonate powder by mass; 6-10% by mass of glass fiber; 3-5% of paraffin by mass; 4-8% of coupling agent by mass; 2-4% of stabilizer, 2-5% of modifier, 1-2% of PE wax, 2-4% of titanium dioxide powder, 3-4% of silicon dioxide powder, 2-3% of barium sulfate and 1-3% of talcum powder.
As a preferred embodiment of the invention, the PVC pipe prepared based on nano activated calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 40% by mass of polyvinyl chloride resin; 20 percent of nano calcium carbonate powder by mass; 10% by mass of glass fiber; 5% of paraffin by mass; 5% by mass of a coupling agent; 4 mass percent of stabilizer, 5 mass percent of modifier, 1 mass percent of PE wax, 3 mass percent of titanium dioxide powder, 4 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
As a preferred embodiment of the invention, the PVC pipe prepared based on nano activated calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 50% by mass of polyvinyl chloride resin; 25 mass percent of nano calcium carbonate powder; 6% of glass fiber; 3% of paraffin by mass; 4% by mass of a coupling agent; 2 mass percent of stabilizer, 2 mass percent of modifier, 1 mass percent of PE wax, 2 mass percent of titanium dioxide powder, 2 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
As a preferred embodiment of the invention, the PVC pipe prepared based on nano activated calcium carbonate and the preparation method thereof have the following preparation steps:
a. weighing the raw materials in parts by weight;
b. after the step a is finished, dissolving the nano calcium carbonate powder in water to form a nano calcium carbonate solution for later use;
c. after the step b is finished, adding the polyvinyl chloride resin, the titanium dioxide powder, the silicon dioxide powder, the barium sulfate and the talcum powder into a mixer, and adding a proper amount of water into the mixer for mixing to obtain a mixed material A;
d. after the step c is finished, putting the nano calcium carbonate solution into the mixture A for mixing, and then putting the glass fiber, the paraffin, the coupling agent, the stabilizer, the modifier and the PE wax into a mixer for mixing with the mixture to prepare a mixed material B;
e. and d, after the step d is finished, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe.
In a preferred embodiment of the present invention, the coupling agent comprises one or more of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxymethyl triethoxysilane as a main component, the modifier comprises MBS resin as a main component, and the stabilizer mainly comprises a calcium-zinc composite stabilizer.
In a preferred embodiment of the present invention, when the nano calcium carbonate powder is dissolved in water in step b, it needs to be stirred for 20-30 min, and the rotation speed during stirring is 200-300 r/min.
In a preferred embodiment of the present invention, the temperature of the mixture B in the step d is 70-80 ℃, the mixing time is 1-2 h, and the rotation speed is 1200-1300 r/min.
In a preferred embodiment of the present invention, the prepared mixture material B is put into a twin-screw extruder in the step e to perform extrusion molding of PVC pipes, and the temperature during extrusion molding is 120-135 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the PVC pipeline manufacturing process can effectively improve or adjust the rigidity, toughness, finish degree and bending strength of the PVC pipeline, also improves the processing performance, rheological property, size stability and heat-resisting stability of the PVC pipeline, can replace part of expensive fillers and aids, and reduces the dosage of resin, thereby reducing the production cost of the PVC pipeline.
Detailed Description
Technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The invention provides a technical scheme that: a PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof comprise the following raw materials in parts by weight: 40-55% of polyvinyl chloride resin; 20-30% of nano calcium carbonate powder by mass; 6-10% by mass of glass fiber; 3-5% of paraffin by mass; 4-8% of coupling agent by mass; 2-4% of stabilizer, 2-5% of modifier, 1-2% of PE wax, 2-4% of titanium dioxide powder, 3-4% of silicon dioxide powder, 2-3% of barium sulfate and 1-3% of talcum powder.
Further, the PVC pipe prepared based on the nano active calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 40% by mass of polyvinyl chloride resin; 20 percent of nano calcium carbonate powder by mass; 10% by mass of glass fiber; 5% of paraffin by mass; 5% by mass of a coupling agent; 4 mass percent of stabilizer, 5 mass percent of modifier, 1 mass percent of PE wax, 3 mass percent of titanium dioxide powder, 4 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
Further, the PVC pipe prepared based on the nano active calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 50% by mass of polyvinyl chloride resin; 25 mass percent of nano calcium carbonate powder; 6% of glass fiber; 3% of paraffin by mass; 4% by mass of a coupling agent; 2 mass percent of stabilizer, 2 mass percent of modifier, 1 mass percent of PE wax, 2 mass percent of titanium dioxide powder, 2 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
Further, the PVC pipe prepared based on the nano active calcium carbonate and the preparation method thereof comprise the following preparation steps:
a. weighing the raw materials in parts by weight;
b. after the step a is finished, dissolving the nano calcium carbonate powder in water to form a nano calcium carbonate solution for later use;
c. after the step b is finished, adding the polyvinyl chloride resin, the titanium dioxide powder, the silicon dioxide powder, the barium sulfate and the talcum powder into a mixer, and adding a proper amount of water into the mixer for mixing to obtain a mixed material A;
d. after the step c is finished, putting the nano calcium carbonate solution into the mixture A for mixing, and then putting the glass fiber, the paraffin, the coupling agent, the stabilizer, the modifier and the PE wax into a mixer for mixing with the mixture to prepare a mixed material B;
e. and d, after the step d is finished, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe.
Further, the main component of the coupling agent is one or more than two of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy methyl triethoxy silane, the main component of the modifier is MBS resin, and the stabilizer mainly adopts a calcium-zinc composite stabilizer.
Further, when the nano calcium carbonate powder is dissolved in water in the step b, the nano calcium carbonate powder needs to be stirred for 20-30 min, and the rotating speed during stirring is 200-300 r/min.
Further, the temperature of the mixed material B in the step d is 70-80 ℃, the mixing time is 1-2 h, and the rotating speed during mixing is 1200-1300 r/min.
And furthermore, in the step e, the prepared mixed material B is placed into a double-screw extruder to be subjected to extrusion molding of the PVC pipe, wherein the temperature during extrusion molding is 120-135 ℃.
Example one
The PVC pipe prepared based on the nano active calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 40% by mass of polyvinyl chloride resin; 20 percent of nano calcium carbonate powder by mass; 10% by mass of glass fiber; 5% of paraffin by mass; 5% by mass of a coupling agent; 4 mass percent of stabilizer, 5 mass percent of modifier, 1 mass percent of PE wax, 3 mass percent of titanium dioxide powder, 4 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
The preparation steps are as follows:
a. weighing the raw materials in parts by weight;
b. after the step a is finished, dissolving the nano calcium carbonate powder in water to form a nano calcium carbonate solution for later use;
c. after the step b is finished, adding the polyvinyl chloride resin, the titanium dioxide powder, the silicon dioxide powder, the barium sulfate and the talcum powder into a mixer, and adding a proper amount of water into the mixer for mixing to obtain a mixed material A;
d. after the step c is finished, putting the nano calcium carbonate solution into the mixture A for mixing, and then putting the glass fiber, the paraffin, the coupling agent, the stabilizer, the modifier and the PE wax into a mixer for mixing with the mixture to prepare a mixed material B;
e. and d, after the step d is finished, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe.
Example two
The PVC pipe prepared based on the nano active calcium carbonate and the preparation method thereof comprise the following raw materials in parts by weight: 50% by mass of polyvinyl chloride resin; 25 mass percent of nano calcium carbonate powder; 6% of glass fiber; 3% of paraffin by mass; 4% by mass of a coupling agent; 2 mass percent of stabilizer, 2 mass percent of modifier, 1 mass percent of PE wax, 2 mass percent of titanium dioxide powder, 2 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
The preparation steps are as follows:
a. weighing the raw materials in parts by weight;
b. after the step a is finished, dissolving the nano calcium carbonate powder in water to form a nano calcium carbonate solution for later use;
c. after the step b is finished, adding the polyvinyl chloride resin, the titanium dioxide powder, the silicon dioxide powder, the barium sulfate and the talcum powder into a mixer, and adding a proper amount of water into the mixer for mixing to obtain a mixed material A;
d. after the step c is finished, putting the nano calcium carbonate solution into the mixture A for mixing, and then putting the glass fiber, the paraffin, the coupling agent, the stabilizer, the modifier and the PE wax into a mixer for mixing with the mixture to prepare a mixed material B;
e. and d, after the step d is finished, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe.
The data parameters of the traditional PVC pipe are as follows in table 1:
| test items | Toughness of | Processability (M-Y-Y | Heat resistance stability | Cost of manufacture |
| Parameter index | In general | Is poor | Is weaker | Height of |
Example a PVC pipe data parameters table 2 is as follows:
| test items | Toughness of | Processability (M-Y-Y | Heat resistance stability | Cost of manufacture |
| Parameter index | Good effect | In general | Good effect | In general |
Example two PVC pipe data parameters table 3 is as follows:
| test items | Toughness of | Processability (M-Y-Y | Heat resistance stability | Cost of manufacture |
| Parameter index | Superior food | Good effect | High strength | Is lower than |
In summary, the comparison of the data in tables 1, 2 and 3 shows that the process of manufacturing the PVC pipe of the present invention can effectively improve or adjust the rigidity, toughness, smoothness and bending strength of the PVC pipe, and also improve the processability, rheological property, dimensional stability and heat resistance stability of the PVC pipe, and can replace part of expensive fillers and aids, and reduce the amount of resin used, thereby reducing the production cost of the PVC pipe.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A PVC pipe prepared based on nano active calcium carbonate and a preparation method thereof are characterized in that: comprises the following raw materials in parts by weight: 40-55% of polyvinyl chloride resin; 20-30% of nano calcium carbonate powder by mass; 6-10% by mass of glass fiber; 3-5% of paraffin by mass; 4-8% of coupling agent by mass; 2-4% of stabilizer, 2-5% of modifier, 1-2% of PE wax, 2-4% of titanium dioxide powder, 2-4% of silicon dioxide powder, 2-3% of barium sulfate and 1-3% of talcum powder.
2. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 1 are characterized in that: comprises the following raw materials in parts by weight: 40% by mass of polyvinyl chloride resin; 20 percent of nano calcium carbonate powder by mass; 10% by mass of glass fiber; 5% of paraffin by mass; 5% by mass of a coupling agent; 4 mass percent of stabilizer, 5 mass percent of modifier, 1 mass percent of PE wax, 3 mass percent of titanium dioxide powder, 4 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
3. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 1 are characterized in that: comprises the following raw materials in parts by weight: 50% by mass of polyvinyl chloride resin; 25 mass percent of nano calcium carbonate powder; 6% of glass fiber; 3% of paraffin by mass; 4% by mass of a coupling agent; 2 mass percent of stabilizer, 2 mass percent of modifier, 1 mass percent of PE wax, 2 mass percent of titanium dioxide powder, 2 mass percent of silicon dioxide powder, 2 mass percent of barium sulfate and 1 mass percent of talcum powder.
4. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 1 are characterized in that: the preparation steps are as follows:
a. weighing the raw materials in parts by weight;
b. after the step a is finished, dissolving the nano calcium carbonate powder in water to form a nano calcium carbonate solution for later use;
c. after the step b is finished, adding polyvinyl chloride resin, titanium dioxide powder, silicon dioxide powder, barium sulfate and talcum powder into a mixer, adding a proper amount of water into the mixer for mixing, wherein the mixing temperature is 30-50 ℃, and the mixing time is 55-65 min, so as to prepare a mixed material A;
d. after the step c is finished, putting the nano calcium carbonate solution into the mixture A for mixing, and then putting the glass fiber, the paraffin, the coupling agent, the stabilizer, the modifier and the PE wax into a mixer for mixing with the mixture to prepare a mixed material B;
e. and d, after the step d is finished, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe.
5. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 1 are characterized in that: the coupling agent mainly comprises one or more than two of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy methyl triethoxysilane, the modifier mainly comprises MBS resin, and the stabilizer mainly adopts calcium zinc composite stabilizer.
6. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 4 are characterized in that: and c, when the nano calcium carbonate powder is dissolved in the water in the step b, stirring the nano calcium carbonate powder for 20-30 min at the rotating speed of 200-300 r/min.
7. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 4 are characterized in that: and d, mixing the mixed material B in the step d at the temperature of 70-80 ℃, for 1-2 h, and at the rotating speed of 1200-1300 r/min.
8. The PVC pipe prepared based on nano active calcium carbonate and the preparation method thereof according to claim 4 are characterized in that: and e, putting the prepared mixed material B into a double-screw extruder to perform extrusion molding on the PVC pipe, wherein the temperature during extrusion molding is 120-135 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011489870.1A CN112552620A (en) | 2020-12-17 | 2020-12-17 | PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate and preparation method thereof |
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| CN202011489870.1A CN112552620A (en) | 2020-12-17 | 2020-12-17 | PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404936A (en) * | 2021-05-10 | 2021-09-17 | 江苏兴岙科技有限公司 | PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404936A (en) * | 2021-05-10 | 2021-09-17 | 江苏兴岙科技有限公司 | PVC (polyvinyl chloride) pipe prepared based on nano active calcium carbonate |
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