CN110724357A - Heat-resistant PVC sheet and production method thereof - Google Patents
Heat-resistant PVC sheet and production method thereof Download PDFInfo
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- CN110724357A CN110724357A CN201911076921.5A CN201911076921A CN110724357A CN 110724357 A CN110724357 A CN 110724357A CN 201911076921 A CN201911076921 A CN 201911076921A CN 110724357 A CN110724357 A CN 110724357A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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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
-
- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a heat-resistant PVC sheet and a production method thereof, wherein the heat-resistant PVC sheet comprises the following components in parts by weight: PVC 70-80%, plasticizer 30-45%, CPVC 10-20%, methyl tin stabilizer 2-3%, lubricant 1-2%, filler 4-6%, processing aid 1-2%, and high-temperature heat-resistant fiber 2-3%. According to the invention, by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved, and the use of the cooling tower filler in a high-temperature tower is increased; according to the method, the raw materials are mixed and then directly injected into the mold, and compared with the traditional method of firstly preparing particles and then carrying out subsequent melting injection molding, the method is higher in efficiency and saves the cost; by adopting the high-temperature heat-resistant fiber, the integral rigidity of the product can be improved.
Description
Technical Field
The invention relates to the technical field of PVC sheets, in particular to a heat-resistant PVC sheet and a production method thereof.
Background
PVC is a thermoplastic resin formed by the polymerization of vinyl chloride under the action of an initiator. Is a homopolymer of vinyl chloride. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins. PVC is white powder with an amorphous structure and has small branching degree. The molecular weight of the PVC produced industrially is generally within the range of 5-12 ten thousand, and the PVC has larger polydispersity, and the molecular weight is increased along with the reduction of polymerization temperature; without a fixed melting point, softening begins at 80-85 ℃, the temperature of 130 ℃ becomes a viscoelastic state, and the temperature of 160-180 ℃ begins to change into a viscous state; the alloy has good mechanical properties, the tensile strength is about 60MPa, and the impact strength is 5-10 kJ/m; has excellent dielectric properties. But the stability to light and heat is poor, and the hydrogen chloride is decomposed to generate hydrogen chloride at the temperature of more than 100 ℃ or after long-time sun exposure, and further the hydrogen chloride is automatically catalyzed and decomposed to cause color change, and the physical and mechanical properties are also rapidly reduced, so that a stabilizer is required to be added in practical application to improve the stability to heat and light. PVC is very hard and has poor solubility, can only be dissolved in a few solvents such as cyclohexanone, dichloroethane, tetrahydrofuran and the like, is stable to organic and inorganic acids, alkalis and salts, and the chemical stability is reduced along with the rise of the use temperature.
The cooling tower cools by the evaporation and heat dissipation of water, and the hot gas is exhausted out of the tower by air draft. When the existing circulating water cooling tower works, after cold air is contacted with hot water in the cooling tower for heat exchange, a large amount of water drops can be inevitably taken away except for taking away heat in water, so a water receiver is usually arranged in the cooling tower. The blades of the existing water collector of the cooling tower are basically made of PVC materials.
However, the existing PVC sheet has poor heat resistance and is not beneficial to being used in a cooling tower, so that a heat-resistant PVC sheet and a production method thereof are provided.
Disclosure of Invention
The invention aims to provide a heat-resistant PVC sheet and a production method thereof, and aims to solve the problems that the PVC sheet in the prior art is poor in heat resistance and is not beneficial to use in a cooling tower.
In order to achieve the purpose, the invention provides the following technical scheme: a heat-resistant PVC sheet comprises the following components in parts by weight: PVC 70-80%, plasticizer 30-45%, CPVC 10-20%, methyl tin stabilizer 2-3%, lubricant 1-2%, filler 4-6%, processing aid 1-2%, and high-temperature heat-resistant fiber 2-3%.
Preferably, the processing aid is an MMA/acrylate copolymer.
A production method of a heat-resistant PVC sheet comprises the following steps:
s1, preparing materials: weighing PVC 70-80 wt%, plasticizer 30-45 wt%, CPVC 10-20 wt%, methyl tin stabilizer 2-3 wt%, lubricant 1-2 wt%, stuffing 4-6 wt%, processing assistant 2-3 wt% and high temperature heat resisting fiber 2-3 wt%;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: injection molding: adding the raw materials melted in the step S2 into a mould, cooling and forming, and then demoulding to obtain a product; or the materials stirred in the step S2 are sequentially placed in an extruder and a calender, and the calendered product is rolled after being subjected to separation, embossing and cooling to obtain the PVC sheet.
Preferably, in the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, and then the methyl tin stabilizer, the lubricant, the filler, the processing aid and the high-temperature heat-resistant fiber are added for mixing and stirring, and the melting and mixing standards in the step S2 are met under the standard that no particulate material is contained.
Preferably, the mold in step S3 can be designed as required.
Preferably, after the raw material in the molten state is filled in the mold cavity in step S3, the pressure in the mold cavity is maintained until the raw material in the molten state is solidified.
Preferably, the mold needs to be cleaned before injection molding in step S3, and the mold is dried after cleaning.
Preferably, the extruder extrusion temperature in the step S3 is controlled to be 190 ℃ and the calender temperature is controlled to be 190 ℃ and 180 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved, and the use of cooling tower filling in a high-temperature tower is increased;
2. according to the method, the raw materials are mixed and then directly injected into the mold, and compared with the traditional method of firstly preparing particles and then carrying out subsequent melting injection molding, the method is higher in efficiency and saves the cost;
3. by adopting the high-temperature heat-resistant fiber, the integral rigidity of the product can be improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, 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 one
In the embodiment of the invention, the heat-resistant PVC sheet comprises the following components in parts by weight: PVC70%, CPVC10%, methyl tin stabilizer 2%, lubricant 1%, filler 4%, processing aid 1% and high-temperature heat-resistant fiber 2%.
The processing aid adopts MMA/acrylate copolymer.
A production method of a heat-resistant PVC sheet comprises the following steps:
s1, preparing materials: weighing 70% of PVC, 30% of plasticizer, 10% of CPVC, 2% of methyl tin stabilizer, 1% of lubricant, 4% of filler, 1% of processing aid and 2% of high-temperature heat-resistant fiber according to parts by weight;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: adding the raw materials melted in the step S2 into a mould, cooling, forming and demoulding to obtain the product.
In the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, then the methyl tin stabilizer, the lubricant, the filler, the processing aid and the high-temperature heat-resistant fiber are added for mixing and stirring, the melting and mixing standards in the step S2 are based on that no granular material is contained, and the stirring time is 3-5 minutes.
The mold in the step S3 can be designed as required.
After the raw material in the molten state is filled in the mold cavity in the step S3, the pressure in the mold cavity is maintained until the raw material in the molten state is solidified.
The mold needs to be cleaned before injection molding in step S3, and the mold is dried after cleaning.
The high-temperature heat-resistant fiber is polycrystalline alumina fiber.
The principle of the invention is as follows: by adopting the high-temperature heat-resistant fiber, the integral rigidity of the product can be improved; by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved (the softening temperature of the sheet is more than 100 ℃, the long-term use temperature of the sheet can reach 90 ℃, compared with the traditional deformation material, the heat resistance temperature is improved by 10-20 ℃), and the use of the cooling tower filler in a high-temperature tower is increased; this application mixes the raw materials in the back direct injection mould, compares the tradition and makes the granule earlier after carrying out the method that the epilogue melts and moulds plastics, this application efficiency is higher, and practice thrift the cost.
Example two
In the embodiment of the invention, the heat-resistant PVC sheet comprises the following components in parts by weight: PVC80%, CPVC20%, methyl tin stabilizer 3%, lubricant 2%, filler 6% and processing aid 2%.
The processing aid adopts MMA/acrylate copolymer.
A production method of a heat-resistant PVC sheet comprises the following steps:
s1, preparing materials: weighing 80% of PVC, 45% of plasticizer, 20% of CPVC, 3% of methyl tin stabilizer, 2% of lubricant, 6% of filler and 2% of processing aid in parts by weight;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: adding the raw materials melted in the step S2 into a mould, cooling, forming and demoulding to obtain the product.
In the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, then the methyl tin stabilizer, the lubricant, the filler and the processing aid are added for mixing and stirring, the melting and mixing standards in the step S2 are based on no granular materials, and the stirring time is 3-5 minutes.
The mold in the step S3 can be designed as required.
After the raw material in the molten state is filled in the mold cavity in the step S3, the pressure in the mold cavity is maintained until the raw material in the molten state is solidified.
The mold needs to be cleaned before injection molding in step S3, and the mold is dried after cleaning.
The principle of the invention is as follows: by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved (the softening temperature of the sheet is more than 100 ℃, the long-term use temperature of the sheet can reach 90 ℃, compared with the traditional deformation material, the heat resistance temperature is improved by 10-20 ℃), and the use of the cooling tower filler in a high-temperature tower is increased; this application mixes the raw materials in the back direct injection mould, compares the tradition and makes the granule earlier after carrying out the method that the epilogue melts and moulds plastics, this application efficiency is higher, and practice thrift the cost
EXAMPLE III
In the embodiment of the invention, the heat-resistant PVC sheet comprises the following components in parts by weight: PVC70%, CPVC10%, methyl tin stabilizer 2%, lubricant 1%, filler 4%, processing aid 1% and high-temperature heat-resistant fiber 2%.
The processing aid adopts MMA/acrylate copolymer.
A production method of a heat-resistant PVC sheet comprises the following steps:
s1, preparing materials: weighing 70% of PVC, 30% of plasticizer, 10% of CPVC, 2% of methyl tin stabilizer, 1% of lubricant, 4% of filler, 1% of processing aid and 2% of high-temperature heat-resistant fiber according to parts by weight;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: and (5) sequentially placing the materials stirred in the step S2 into an extruder and a calender, and rolling the rolled product after leading off, embossing and cooling to obtain the PVC sheet.
In the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, then the methyl tin stabilizer, the lubricant, the filler, the processing aid and the high-temperature heat-resistant fiber are added for mixing and stirring, the melting and mixing standards in the step S2 are based on that no granular material is contained, and the stirring time is 3-5 minutes.
The high-temperature heat-resistant fiber is polycrystalline alumina fiber.
In the step S3, the extrusion temperature of the extruder is controlled to be 190 ℃ plus 180 ℃, and the temperature of the calender is controlled to be 190 ℃ plus 180 ℃; in step S3, the product is extruded and placed in an open mill at 170 ℃ before being calendered; the product is rolled and placed in a filter before being rolled, and the filtering temperature is controlled at 190 ℃; the filtration speed is controlled at 10 m/min.
The principle of the invention is as follows: by adopting the high-temperature heat-resistant fiber, the integral rigidity of the product can be improved; by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved (the softening temperature of the sheet is more than 100 ℃, the long-term use temperature of the sheet can reach 90 ℃, compared with the traditional deformation material, the heat resistance temperature is improved by 10-20 ℃), and the use of the cooling tower filler in a high-temperature tower is increased; this application mixes the raw materials in the back direct injection mould, compares the tradition and makes the granule earlier after carrying out the method that the epilogue melts and moulds plastics, this application efficiency is higher, and practice thrift the cost.
Example four
In the embodiment of the invention, the heat-resistant PVC sheet comprises the following components in parts by weight: PVC80%, CPVC20%, methyl tin stabilizer 3%, lubricant 2%, filler 6% and processing aid 2%.
The processing aid adopts MMA/acrylate copolymer.
A production method of a heat-resistant PVC sheet comprises the following steps:
s1, preparing materials: weighing 80% of PVC, 45% of plasticizer, 20% of CPVC, 3% of methyl tin stabilizer, 2% of lubricant, 6% of filler and 2% of processing aid in parts by weight;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: and (5) sequentially placing the materials stirred in the step S2 into an extruder and a calender, and rolling the rolled product after leading off, embossing and cooling to obtain the PVC sheet.
In the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, then the methyl tin stabilizer, the lubricant, the filler and the processing aid are added for mixing and stirring, the melting and mixing standards in the step S2 are based on no granular materials, and the stirring time is 3-5 minutes.
In the step S3, the extrusion temperature of the extruder is controlled to be 190 ℃ plus 180 ℃, and the temperature of the calender is controlled to be 190 ℃ plus 180 ℃; in step S3, the product is extruded and placed in an open mill at 170 ℃ before being calendered; the product is rolled and placed in a filter before being rolled, and the filtering temperature is controlled at 190 ℃; the filtration speed is controlled at 10 m/min.
The principle of the invention is as follows: by mixing PVC and CPVC, the heat resistance of the PVC sheet is improved (the softening temperature of the sheet is more than 100 ℃, the long-term use temperature of the sheet can reach 90 ℃, compared with the traditional deformation material, the heat resistance temperature is improved by 10-20 ℃), and the use of the cooling tower filler in a high-temperature tower is increased; this application mixes the raw materials in the back direct injection mould, compares the tradition and makes the granule earlier after carrying out the method that the epilogue melts and moulds plastics, this application efficiency is higher, and practice thrift the cost.
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 (8)
1. A heat-resistant PVC sheet characterized in that: wherein the weight contents of the components are as follows: PVC 70-80%, plasticizer 30-45%, CPVC 10-20%, methyl tin stabilizer 2-3%, lubricant 1-2%, filler 4-6%, processing aid 1-2%, and high-temperature heat-resistant fiber 2-3%.
2. A heat resistant PVC sheet according to claim 1, characterized in that: the processing aid adopts MMA/acrylate copolymer.
3. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: the method comprises the following steps:
s1, preparing materials: weighing PVC 70-80 wt%, plasticizer 30-45 wt%, CPVC 10-20 wt%, methyl tin stabilizer 2-3 wt%, lubricant 1-2 wt%, stuffing 4-6 wt%, processing assistant 1-2 wt% and high temperature heat resisting fiber 2-3 wt%;
s2: melting and mixing materials: placing the weighed ingredients into a high-speed mixer for mixing until the temperature of the ingredients is raised to 100-300 ℃;
s3: injection molding: adding the raw materials melted in the step S2 into a mould, cooling and forming, and then demoulding to obtain a product; or the materials stirred in the step S2 are sequentially placed in an extruder and a calender, and the calendered product is rolled after being subjected to separation, embossing and cooling to obtain the PVC sheet.
4. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: in the step S2, the CPVC, the PVC and the plasticizer are mixed and stirred, then the methyl tin stabilizer, the lubricant, the filler, the processing aid and the high-temperature heat-resistant fiber are added for mixing and stirring, and the melting and mixing standards in the step S2 are met under the standard that no granular material is contained.
5. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: the mold in the step S3 can be designed as required.
6. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: after the raw material in the molten state is filled in the mold cavity in the step S3, the pressure in the mold cavity is maintained until the raw material in the molten state is solidified.
7. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: the mold needs to be cleaned before injection molding in step S3, and the mold is dried after cleaning.
8. A method for producing a heat-resistant PVC sheet according to claim 1, characterized in that: in the step S3, the extrusion temperature of the extruder is controlled to be 190 ℃ and the temperature of the calender is controlled to be 190 ℃ and 180 ℃.
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| CN201911076921.5A CN110724357A (en) | 2019-11-06 | 2019-11-06 | Heat-resistant PVC sheet and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171477A (en) * | 2020-02-24 | 2020-05-19 | 朱冬梅 | Environment-friendly light anti-corrosion PVC (polyvinyl chloride) floor for vehicles and preparation method thereof |
| CN111873501A (en) * | 2020-07-09 | 2020-11-03 | 东莞市欣瑞机械制造有限公司 | Plastic sheet production method |
| CN112406085A (en) * | 2021-01-22 | 2021-02-26 | 潍坊群庆机械设备科技有限责任公司 | Embossing process for PVC leather of automobile interior trim |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108149A (en) * | 2009-12-28 | 2011-06-29 | 崔贵府 | General-purpose thermoplastic plastic compound containing ceramic fiber and preparation method thereof |
| CN103059465A (en) * | 2012-12-25 | 2013-04-24 | 东莞市祺龙电业有限公司 | High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof |
-
2019
- 2019-11-06 CN CN201911076921.5A patent/CN110724357A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108149A (en) * | 2009-12-28 | 2011-06-29 | 崔贵府 | General-purpose thermoplastic plastic compound containing ceramic fiber and preparation method thereof |
| CN103059465A (en) * | 2012-12-25 | 2013-04-24 | 东莞市祺龙电业有限公司 | High heat resisting and high abrasion resistant polyvinyl chloride (PVC) modified material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 丁磊: "《最新塑料助剂品种优化选择与性能分析检测标准及应用工艺实用手册 第一卷》", 31 October 2004, 银声音像出版社 * |
| 日本包装技术协会: "《包装技术手册》", 31 May 1994, 机械工业出版社 * |
| 罗红林: "《复合材料精品教程》", 31 May 2018, 天津大学出版社 * |
| 蒋有光: "《外贸商品学》", 30 April 2010, 合肥工业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171477A (en) * | 2020-02-24 | 2020-05-19 | 朱冬梅 | Environment-friendly light anti-corrosion PVC (polyvinyl chloride) floor for vehicles and preparation method thereof |
| CN111873501A (en) * | 2020-07-09 | 2020-11-03 | 东莞市欣瑞机械制造有限公司 | Plastic sheet production method |
| CN112406085A (en) * | 2021-01-22 | 2021-02-26 | 潍坊群庆机械设备科技有限责任公司 | Embossing process for PVC leather of automobile interior trim |
| CN112406085B (en) * | 2021-01-22 | 2021-05-11 | 温州市环球汽车衬垫有限公司 | Embossing process for PVC leather of automobile interior trim |
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Application publication date: 20200124 |