CN112831135B - High-impact PVC (polyvinyl chloride) pipe material and preparation method and application thereof - Google Patents
High-impact PVC (polyvinyl chloride) pipe material and preparation method and application thereof Download PDFInfo
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- CN112831135B CN112831135B CN202011638195.4A CN202011638195A CN112831135B CN 112831135 B CN112831135 B CN 112831135B CN 202011638195 A CN202011638195 A CN 202011638195A CN 112831135 B CN112831135 B CN 112831135B
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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
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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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention belongs to the technical field of PVC pipe production, and particularly relates to a high-impact PVC pipe material, a preparation method and application thereof. The material is mainly prepared by mixing talcum powder, calcium carbonate, monoalkoxy titanate coupling agent, N-phenyl maleimide, dicumyl peroxide and other auxiliary materials, the added N-phenyl maleimide can avoid hydrolysis of the titanate coupling agent, dicumyl peroxide can enhance connection between the N-phenyl maleimide and PVC resin, stability of the PVC resin is improved, and the effects of remarkably improving mechanical properties such as impact resistance, tensile strength and the like of the material are achieved under the combined action of the components.
Description
Technical Field
The invention belongs to the technical field of PVC pipe production. More particularly, relates to a high impact PVC pipe material and a preparation method and application thereof.
Background
In the 21 st century, weather was changed more and more, and rainfall was abnormal. In a siphon rainwater drainage system of a high-rise building temporarily in a rainy season, due to the change of rainfall, a PVC drainage pipeline experiences pressure flow changes of complete gravity flow, two flows and complete full flow, abrupt change of the rainfall can lead to multiplication of impact force of water flow in the pipeline, and meanwhile, water hammer phenomenon can be caused to damage the PVC pipeline. The impact resistance requirement on the PVC drainage pipe is very high, and the impact strength of the PVC drainage pipe filled with common calcium carbonate cannot meet the requirement.
The PVC drainage high-impact pipe with high performance in the market at present is generally filled with nano-level filler subjected to surface treatment, so that the compatibility of inorganic particles and polymers is improved, and the mechanical property of the pipeline is enhanced. Such as calcium carbonate, talcum powder and the like, but the calcium carbonate particles are in irregular block shape, the surface is hydrophilic and oleophobic, the surface energy is high, the particles are easy to agglomerate, when the calcium carbonate particles are directly or largely filled into an organic matrix material, a large number of gaps are easily left between the particles, the particles are difficult to uniformly disperse, and the impact performance of the product is reduced; the nano talcum powder has the defects of reducing the tensile strength, increasing the brittleness and reducing the melt flow index of the mixture, and has high manufacturing cost and is not suitable for large-scale addition. In order to solve the problems, chinese patent application No. 107778730A discloses a preparation method of PVC pipe with stainless steel effect, wherein monoalkoxy titanate coupling agent is added into the pipe to be blended and modified with other raw materials, so that the monoalkoxy titanate coupling agent is uniformly dispersed in PVC resin. However, in practical application, it is found that the monoalkoxy titanate coupling agent is very easy to hydrolyze, and is usually dissolved in organic solvents such as petroleum ether and benzene alcohol for dilution treatment, and water in the material is not required to be ensured, so that on one hand, a great amount of manpower and material resources are required to be wasted, and on the other hand, the organic solvents such as petroleum ether and benzene alcohol are also remained in the product, so that the environment is polluted, and the material cannot be used on a large scale.
Disclosure of Invention
The invention aims to overcome the defects that the existing monoalkoxy titanate coupling agent is easy to hydrolyze, water in the material is required to be avoided, an organic solvent is required to be adopted to dissolve, and a large amount of manpower and material resources are consumed.
The invention aims to provide a high-impact PVC pipe material.
The invention further aims to provide a preparation method of the high-impact PVC pipe material.
The invention further aims to provide an application of the high-impact PVC pipe material in preparing water supply and drainage pipes.
It is another object of the present invention to provide a high impact PVC pipe.
The above object of the present invention is achieved by the following technical scheme:
the high-impact PVC pipe material comprises the following components in parts by weight:
100 parts of PVC resin, 10-20 parts of calcium carbonate, 1-10 parts of talcum powder, 1-8 parts of calcium zinc stabilizer, 2-4 parts of lubricant, 0-5 parts of titanium dioxide, 1-5 parts of monoalkoxy titanate coupling agent, 1-5 parts of N-phenyl maleimide and 1-2 parts of dicumyl peroxide.
In the invention, N-phenyl maleimide and dicumyl peroxide are introduced as auxiliary agents to assist monoalkoxy titanate coupling agents to carry out surface treatment on calcium carbonate and talcum powder. Wherein, the N-phenyl maleimide reacts actively under the high temperature condition, can be combined with free water in calcium carbonate and talcum powder for ring opening, and avoids the hydrolysis reaction of monoalkoxy titanate coupling agent; and after ring opening, the modified polyurethane can be connected with functional groups in the monoalkoxy titanate coupling agent, and simultaneously is combined with free chloride ions on PVC resin, so that the compatibility of the filler is improved. The dicumyl peroxide plays a role in crosslinking, so that a tie for connecting the N-phenylmaleimide and the PVC resin is built, and the stability of the PVC material is ensured. The monoalkoxy titanate coupling agent can effectively carry out surface treatment on calcium carbonate and talcum powder, is favorable for uniformly dispersing the calcium carbonate, the talcum powder and the PVC resin, and can obviously enhance the impact resistance of the PVC pipe.
Preferably, the high-impact PVC pipe material comprises the following components in parts by weight:
100 parts of PVC resin, 15-20 parts of calcium carbonate, 5-10 parts of talcum powder, 5-8 parts of calcium zinc stabilizer, 2-3 parts of lubricant, 2-5 parts of titanium dioxide, 1-3 parts of monoalkoxy titanate coupling agent, 1-3 parts of N-phenyl maleimide and 1-2 parts of dicumyl peroxide.
More preferably, the high impact PVC pipe material comprises the following components in parts by weight:
100 parts of PVC resin, 20 parts of calcium carbonate, 10 parts of talcum powder, 8 parts of calcium zinc stabilizer, 2 parts of lubricant, 5 parts of titanium dioxide, 1 part of monoalkoxy titanate coupling agent, 1 part of N-phenyl maleimide and 1 part of dicumyl peroxide.
Preferably, the monoalkoxytitanate coupling agent is a fatty acid monoalkoxytitanate coupling agent.
Further, the lubricant is selected from one or two of polyethylene wax and liquid paraffin.
Still further, the calcium carbonate is heavy calcium carbonate.
Further, the titanium dioxide is rutile titanium dioxide or anatase titanium dioxide.
In addition, the invention also provides a preparation method of the high-impact PVC pipe material, which comprises the following steps:
adding monoalkoxy titanate coupling agent into liquid paraffin to prepare solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, uniformly stirring, drying, adding other components, high-speed hot mixing to 130-150 ℃, cooling, discharging, extruding and granulating to obtain the finished product.
Further, the temperature of the cooling is 40-45 ℃.
In addition, the invention also provides application of the high-impact PVC pipe material in preparation of water supply and drainage pipes.
In addition, the invention also provides a high-impact PVC pipe, which is prepared from the high-impact PVC pipe.
The invention has the following beneficial effects:
the high impact PVC pipe material is mainly prepared by mixing talcum powder, calcium carbonate, monoalkoxy titanate coupling agent, N-phenyl maleimide, dicumyl peroxide and other auxiliary materials, the added N-phenyl maleimide can avoid hydrolysis of the monoalkoxy titanate coupling agent, the dicumyl peroxide can enhance the connection between the N-phenyl maleimide and PVC resin, the stability of the PVC resin is improved, and the effects of obviously improving the mechanical properties of the material such as impact resistance, tensile strength and the like are achieved under the combined action of the components.
Detailed Description
The present invention is further illustrated below with reference to specific examples, which are not intended to limit the invention in any way. Unless specifically stated otherwise, the reagents, methods and apparatus employed in the present invention are those conventional in the art.
Reagents and materials used in the following examples are commercially available unless otherwise specified.
Example 1 high impact PVC pipe
The high-impact PVC pipe is prepared from the following materials in parts by weight:
100 parts of PVC resin, 20 parts of heavy calcium carbonate, 10 parts of nano talcum powder, 1 part of liquid paraffin, 1 part of PE wax, 5 parts of titanium dioxide, 8 parts of calcium zinc stabilizer, 1 part of fatty acid monoalkoxy titanate coupling agent, 1 part of N-phenyl maleimide and 1 part of dicumyl peroxide.
The preparation method comprises the following steps:
adding fatty acid monoalkoxy titanate coupling agent into liquid paraffin to prepare a solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, stirring the solution in a stirrer for 50min to enable the treating agent to fully and uniformly coat the filler, and heating and drying the filler; and adding other components, carrying out high-speed hot mixing treatment by a hot mixer until the temperature is 145 ℃, transferring into a low-speed mixer (cold mixer) for cooling, carrying out cold mixing until the temperature is 45 ℃, discharging, granulating in an extruder, and finally extruding and molding to obtain the modified polypropylene composite material.
Example 2A high impact PVC pipe
The high-impact PVC pipe is prepared from the following materials in parts by weight:
100 parts of PVC resin, 20 parts of heavy calcium carbonate, 10 parts of nano talcum powder, 1 part of liquid paraffin, 1 part of PE wax, 5 parts of titanium dioxide, 8 parts of calcium zinc stabilizer, 2 parts of fatty acid monoalkoxy titanate coupling agent, 1 part of N-phenyl maleimide and 1 part of dicumyl peroxide.
The preparation method comprises the following steps:
adding fatty acid monoalkoxy titanate coupling agent into liquid paraffin to prepare a solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, stirring the solution in a stirrer for 40min to enable the treating agent to fully and uniformly coat the filler, and heating and drying the filler; and adding other components, performing high-speed hot mixing treatment by using a hot mixer until the temperature is 130 ℃, transferring into a low-speed mixer (cold mixer) for cooling, cold mixing to 40 ℃, discharging, granulating in an extruder, and finally extruding and molding to obtain the modified polypropylene composite material.
Example 3 high impact PVC pipe
The high-impact PVC pipe is prepared from the following materials in parts by weight:
100 parts of PVC resin, 20 parts of heavy calcium carbonate, 10 parts of nano talcum powder, 1 part of liquid paraffin, 1 part of PE wax, 5 parts of titanium dioxide, 8 parts of calcium zinc stabilizer, 2 parts of fatty acid monoalkoxy titanate coupling agent, 2 parts of N-phenyl maleimide and 1 part of dicumyl peroxide.
The preparation method comprises the following steps:
adding fatty acid monoalkoxy titanate coupling agent into liquid paraffin to prepare a solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, stirring the solution in a stirrer for 60 minutes to enable the treating agent to fully and uniformly coat the filler, and heating and drying the filler; and adding other components, carrying out high-speed heat mixing treatment by a heat mixer until the temperature is 150 ℃, transferring into a low-speed mixer (cold mixer) for cooling, carrying out cold mixing until the temperature is 45 ℃, discharging, granulating in an extruder, and finally extruding and molding to obtain the modified polypropylene composite material.
Example 4 high impact PVC pipe
The high-impact PVC pipe is prepared from the following materials in parts by weight:
100 parts of PVC resin, 20 parts of heavy calcium carbonate, 5 parts of nano talcum powder, 1 part of liquid paraffin, 1 part of PE wax, 5 parts of titanium dioxide, 8 parts of calcium zinc stabilizer, 5 parts of fatty acid monoalkoxy titanate coupling agent, 5 parts of N-phenyl maleimide and 1 part of dicumyl peroxide.
The preparation method comprises the following steps:
adding fatty acid monoalkoxy titanate coupling agent into liquid paraffin to prepare a solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, stirring the solution in a stirrer for 55min to enable the treating agent to fully and uniformly coat the filler, and heating and drying the filler; and adding other components, carrying out high-speed heat mixing treatment by a heat mixer until the temperature is 140 ℃, transferring into a low-speed mixer (cold mixer) for cooling, carrying out cold mixing until the temperature is 43 ℃, discharging, granulating in an extruder, and finally extruding and molding to obtain the modified polypropylene composite material.
Comparative example 1A PVC pipe
Comparative example 1 differs from example 1 in that comparative example 1 was free of N-phenylmaleimide and dicumyl peroxide, and the remaining parameters and operations were referred to in example 1.
Comparative example 2A PVC pipe
Comparative example 2 differs from example 1 in that comparative example 2 was not added with N-phenylmaleimide, and the remaining parameters and operations were referred to example 1.
Comparative example 3A PVC pipe
Comparative example 3 differs from example 1 in that comparative example 3 was not added dicumyl peroxide, the remaining parameters and operations, refer to example 1.
Test example PVC pipe performance determination
The tensile strength, elongation at break, impact strength and longitudinal retraction rate of the PVC pipes prepared in examples and comparative examples were measured with reference to national standard GB/T8804 determination of tensile properties of thermoplastic pipes, GB/T1843 determination of impact strength of plastic cantilever beam, GB/T6671 determination of retraction rate of thermoplastic pipes, and the results are shown in Table 1.
Table 1PVC pipe performance measurements
| Group of | Tensile Strength (MPa) | Elongation at break (%) | Impact Strength (KJ/m) 2 ) | Longitudinal retraction rate(％) |
| Example 1 | 42.8 | 142 | 21.2 | 3.5 |
| Example 2 | 42.0 | 133 | 22.8 | 3.1 |
| Example 3 | 41.3 | 113 | 21.8 | 3.2 |
| Example 4 | 41.2 | 103 | 20.2 | 3.2 |
| Comparative example 1 | 39.8 | 96 | 16.8 | 4.3 |
| Comparative example 2 | 41.2 | 119 | 20.3 | 3.9 |
| Comparative example 3 | 41.5 | 99 | 18.2 | 4.0 |
As can be seen from Table 1, the PVC pipes prepared in examples 1 to 4 of the invention have better tensile strength, elongation at break, impact strength and longitudinal retraction rate and excellent mechanical properties; in comparative examples 1 to 3, the tensile strength, elongation at break and impact strength were reduced to different extents by changing the components.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (9)
1. The high-impact PVC pipe material is characterized by comprising the following components in parts by weight:
100 parts of PVC resin, 10-20 parts of calcium carbonate, 1-10 parts of talcum powder, 1-8 parts of calcium zinc stabilizer, 2-4 parts of lubricant, 0-5 parts of titanium dioxide, 1-5 parts of monoalkoxy titanate coupling agent, 1-5 parts of N-phenyl maleimide and 1-2 parts of dicumyl peroxide;
the lubricant is liquid paraffin.
2. The high impact PVC pipe material according to claim 1, wherein the high impact PVC pipe material comprises the following components in parts by weight:
100 parts of PVC resin, 15-20 parts of calcium carbonate, 5-10 parts of talcum powder, 5-8 parts of calcium zinc stabilizer, 2-3 parts of lubricant, 2-5 parts of titanium dioxide, 1-3 parts of monoalkoxy titanate coupling agent, 1-3 parts of N-phenyl maleimide and 1-2 parts of dicumyl peroxide.
3. The high impact PVC pipe material according to claim 2, wherein the high impact PVC pipe material comprises the following components in parts by weight:
100 parts of PVC resin, 20 parts of calcium carbonate, 10 parts of talcum powder, 8 parts of calcium zinc stabilizer, 2 parts of lubricant, 5 parts of titanium dioxide, 1 part of monoalkoxy titanate coupling agent, 1 part of N-phenyl maleimide and 1 part of dicumyl peroxide.
4. A high impact PVC pipe material according to any of claims 1 to 3, wherein the monoalkoxytitanate coupling agent is a fatty acid monoalkoxytitanate coupling agent.
5. A high impact PVC pipe material according to any of claims 1 to 3, wherein the calcium carbonate is heavy calcium carbonate.
6. The method for preparing the high impact PVC pipe material according to any one of claims 1 to 5, which is characterized by comprising the following steps:
adding monoalkoxy titanate coupling agent into liquid paraffin to prepare solution, adding talcum powder, calcium carbonate, N-phenyl maleimide and dicumyl peroxide into the solution, uniformly stirring, drying, adding other components, high-speed hot mixing to 130-150 ℃, cooling, discharging, extruding and granulating to obtain the finished product.
7. The method according to claim 6, wherein the cooling temperature is 40 to 45 ℃.
8. Use of the high impact PVC pipe material according to any one of claims 1 to 5 for the preparation of water supply and drainage pipes.
9. A high impact PVC pipe made from the high impact PVC pipe material of any one of claims 1 to 5.
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| CN113603982A (en) * | 2021-08-09 | 2021-11-05 | 浙江鸿一箱包皮件有限公司 | High-impact ABS/PVC (acrylonitrile butadiene styrene/polyvinyl chloride) luggage material and preparation method thereof |
| CN114957878B (en) * | 2022-03-26 | 2023-03-31 | 河南瑞腾塑胶集团有限公司 | High-impact-resistance PVC (polyvinyl chloride) pipe and preparation method thereof |
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