CN102532739A - Process for preparing PVC (polyvinyl chloride) section material from waste PVC material - Google Patents
Process for preparing PVC (polyvinyl chloride) section material from waste PVC material Download PDFInfo
- Publication number
- CN102532739A CN102532739A CN2010105761655A CN201010576165A CN102532739A CN 102532739 A CN102532739 A CN 102532739A CN 2010105761655 A CN2010105761655 A CN 2010105761655A CN 201010576165 A CN201010576165 A CN 201010576165A CN 102532739 A CN102532739 A CN 102532739A
- Authority
- CN
- China
- Prior art keywords
- pvc
- waste
- pvc material
- old
- section bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
Abstract
The invention relates to a process for preparing a PVC (polyvinyl chloride) section material from a waste PVC material in the field of chemical industry. The process comprises the following steps: weighing the waste PVC material, a new PVC material, stone powder, a plasticizer, a stabilizing agent and a flexibilizer; purifying the waste PVC material in a muffle furnace so that the purity of the waste PVC material is improved to more than 90%; smashing the purified waste PVC material and mixing the smashed waste PVC material with the new PVC material, and then grinding the mixture in a grinding machine so that the particle size of the powder is more than 600 meshes; evenly stirring the obtained powder with the stone powder, the plasticizer, the stabilizing agent and the flexibilizer at a high speed; and mixing at a low speed and then feeding the mixed material to a two-screw extruder for extrusion, cooling and shaping, dragging and sawing so as to obtain the PVC section material. By utilizing the process, the waste PVC material can be recycled, thus raw material resource is saved, and simultaneously the production cost of the PVC section material is greatly reduced, and the cost of section material per ton is reduced by about ***; and at the same time, the pollution of the waste PVC material on environment is overcome, thus the process is extremely environment-friendly.
Description
Technical field
The present invention relates to a kind of method of chemical field, specifically is a kind of process method of making the PVC section bar with waste and old PVC material.
Background technology
The PVC goods have added a large amount of additives to guarantee product properties in the course of processing, in use, receive the influence of ambient conditions, and polyvinyl chloride resin and additive can change.Therefore can not simply the waste PVC goods be equal to the PVC virgin material uses; But need carry out certain understanding to molecular weight (or viscosity), double bond structure, rest additive kind and the content of the PVC in the waste product, according to the regeneration product requirements, judge the additive types and the consumption that need interpolation then; And then could recycle the waste PVC goods; So the operation meeting is formulated various PVC proportionings because of understanding the waste PVC of different batches, makes development cost improve; Simultaneously, if can not reduce the cost of recycling waste PVC, the waste PVC that can't recycle so can cause the environmental pollution and the wasting of resources.
Summary of the invention
The objective of the invention is to solve the technical problem of recycling waste and old PVC material, a kind of process method of making the PVC section bar with waste and old PVC material is provided.
A kind of process method with waste and old PVC material manufacturing PVC section bar that the present invention relates to comprises the steps:
Step 1 takes by weighing following material: waste and old PVC material, PVC virgin material, stone flour, softening agent, stablizer, toughner;
Step 2 is purified waste and old PVC material in muffle furnace, purity is increased to more than 90%;
Step 3 is pulverized the waste and old PVC material after purifying, and mixes with the PVC virgin material, carries out abrasive dust at pulverizing mill afterwards and makes that powder diameter is more than 600 orders;
Step 4, powder and stone flour, softening agent, stablizer and toughner that step 3 is obtained stir at a high speed;
Step 5 is delivered to step 4 gained batch mixing that to carry out low speed under 100～120 ℃ of the mixing rolls mixing, afterwards the material after mixing is delivered to twin screw extruder and under 150～180 ℃, extrudes, cooling and shaping, traction, sawing, the PVC section bar.
Preferably, the particle diameter of said stone flour is 240 orders.
Preferably, said softening agent is for having Tritolyl Phosphate TCP, epoxyoleic acid butyl ester or hexanodioic acid Ucar 35 polyester.
Preferably, said stablizer is thioalcohol type organo-tin het stabilizer, lead sulfate tribasic, dibasic lead phosphite, Zinic stearas or cadmium stearate.
Preferably, said toughner is ACR, SBS or MBS.
Preferably, in the step 1, the mass ratio of each component is:
Waste and old PVC material 30%～40%;
PVC virgin material 20%～30%;
Stone flour 25%～35%;
Softening agent 1%～3%;
Stablizer 5%～10%;
Toughner 3%～9%.
Preferably, in the step 1, the mass ratio of each component is:
Waste and old PVC material 30%～35%;
PVC virgin material 23%～26%;
Stone flour 26%～30%;
Softening agent 1.5%～2%;
Stablizer 7%～8%;
Toughner 5%～7%.
Preferably, in the step 2, the method for said purification is the fusing point method of difference.
Preferably, in the step 3, said abrasive dust makes that powder diameter is 800 orders.
Compared with prior art; The present invention has following beneficial effect: in the method for the present invention; Use muffle furnace that waste and old PVC material is purified, more than 90%, the waste and old PVC material that does not therefore need to be directed against different batches again carries out the development again of corresponding prescription with control of purity; Utilize the recyclable waste and old PVC material that utilizes of method of the present invention, practiced thrift raw material resources, guaranteed performance of products; Reduced simultaneously PVC section bar production cost significantly; Cost per ton can reduce about 4500 yuan, has also overcome the pollution of waste and old PVC material to environment simultaneously, very environmental protection.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is done further to explain, but following content is not used in qualification protection scope of the present invention.
Term " waste and old PVC material " is meant and reclaims the waste PVC section bar that obtains;
Term " PVC virgin material " is meant the virgin material of the production PVC of outsourcing;
Term " stone flour " is a calcium carbonate powders, also can be described as " calcium powder " in this area;
The thioalcohol type organo-tin het stabilizer is bought three Anhua Chemicals ltds in Beijing, and model is a capital tin 8831;
ACR buys the Rhom and Hass in the U.S., and model is K-385.
Embodiment 1-6
The method of making the PVC section bar in following examples comprises the steps:
Step 1 is got each material respectively by mass fraction: waste and old PVC material, PVC virgin material, stone flour, softening agent, stablizer, toughner;
Step 2 is purified waste and old PVC material in muffle furnace, purity is increased to more than 90%;
Step 3 is pulverized the waste and old PVC material after purifying, and mixes with the PVC virgin material, carries out abrasive dust at pulverizing mill afterwards and makes that powder diameter is more than 600 orders;
Step 4, powder and stone flour, softening agent, stablizer and toughner that step 3 is obtained stir at a high speed;
Step 5 is delivered to step 4 gained batch mixing that to carry out low speed under 100～120 ℃ of the mixing rolls mixing, afterwards the material after mixing is delivered to twin screw extruder and under 150～180 ℃, extrudes, cooling and shaping, traction, sawing, the PVC section bar.
Preferably, in the step 2, the method for said purification is the fusing point method of difference.The fusing point method of difference is to the waste and old PVC material that reclaims and selected; Because the waste and old PVC material that reclaims includes the PVC of a variety of different models, and the fusing point of different PVC is inconsistent, adopt the fusing point method of difference can through in muffle furnace under the different temperature interval the different PVC of fusion; Isolate detrimental impurity; Obtain the higher required PVC material of purity, the purity of PVC is high more, and then final extruded product performance is better.
Preferably, in the step 3, said abrasive dust makes that powder diameter is 800 orders.What the order number was corresponding is the particulate size, and the order number is high more, and particle is more little, and particle is more little can blended when batch mixing more even, and the quality of item that therefore obtains is better.Selecting 800 orders is to take all factors into consideration abrasive dust equipment and result that product properties obtained, and the order number is higher, and cost increases, and the order number is low then can to influence performance.
The mass fraction of each material that step 1 is got among each embodiment is as shown in table 1.The Performance Detection of the PVC section bar of each embodiment preparation is shown in table 2-1 and 2-2.
Table 1
Table 2-1
Embodiment 1～3 performance comparison
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| State after 150 ℃ of heating | No bubble, slight crack, pit | No bubble, slight crack, pit | No bubble, slight crack, pit |
| Low temperature drop impact (number of breaking) | 1 | 1 | 0 |
| Bending elastic modulus (MPa) | 2300 | 2315 | 2358 |
| Tensile yield strength (KJ/m 2) | 630 | 650 | 640 |
Table 2-2
Embodiment 4～6 performance comparison
| Project | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| State after 150 ℃ of heating | No bubble, slight crack, pit | No bubble, slight crack, pit | No bubble, slight crack, pit |
| Low temperature drop impact (number of breaking) | 0 | 0 | 1 |
| Bending elastic modulus (MPa) | 2305 | 2312 | 2356 |
| Tensile yield strength (KJ/m 2) | 635 | 655 | 645 |
In sum, use muffle furnace that waste and old PVC material is purified in the method for the present invention, more than 90%, the waste and old PVC material that does not therefore need to be directed against different batches again carries out the development again of corresponding prescription with control of purity; Utilize the recyclable waste and old PVC material that utilizes of method of the present invention; Practice thrift raw material resources, guaranteed performance of products, reduced PVC section bar production cost simultaneously significantly; Cost per ton can reduce about 4500 yuan that (using the production cost of new PVC material is about 7085 yuan per ton; Production cost after employing the inventive method is about 2585 yuan per ton), also overcome the pollution of waste and old PVC material simultaneously, very environmental protection to environment.
Claims (9)
1. the process method with waste and old PVC material manufacturing PVC section bar is characterized in that, comprises the steps:
Step 1 takes by weighing following material: waste and old PVC material, PVC virgin material, stone flour, softening agent, stablizer, toughner;
Step 2 is purified waste and old PVC material in muffle furnace, purity is increased to more than 90%;
Step 3 is pulverized the waste and old PVC material after purifying, and mixes with the PVC virgin material, carries out abrasive dust at pulverizing mill afterwards and makes that powder diameter is more than 600 orders;
Step 4, powder and stone flour, softening agent, stablizer and toughner that step 3 is obtained stir at a high speed;
Step 5 is delivered to step 4 gained batch mixing that to carry out low speed under 100～120 ℃ of the mixing rolls mixing, afterwards the material after mixing is delivered to twin screw extruder and under 150～180 ℃, extrudes, cooling and shaping, traction, sawing, the PVC section bar.
2. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that the particle diameter of said stone flour is 240 orders.
3. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that said softening agent is for having Tritolyl Phosphate TCP, epoxyoleic acid butyl ester or hexanodioic acid Ucar 35 polyester.
4. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that said stablizer is thioalcohol type organo-tin het stabilizer, lead sulfate tribasic, dibasic lead phosphite, Zinic stearas or cadmium stearate.
5. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that said toughner is ACR, SBS or MBS.
6. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that in the step 1, the mass ratio of each component is:
Waste and old PVC material 30%～40%;
PVC virgin material 20%～30%;
Stone flour 25%～35%;
Softening agent 1%～3%;
Stablizer 5%～10%;
Toughner 3%～9%.
7. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 6 is characterized in that the mass ratio of each component is:
Waste and old PVC material 30%～35%;
PVC virgin material 23%～26%;
Stone flour 26%～30%;
Softening agent 1.5%～2%;
Stablizer 7%～8%;
Toughner 5%～7%.
8. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that in the step 2, the method for said purification is the fusing point method of difference.
9. a kind of process method with waste and old PVC material manufacturing PVC section bar as claimed in claim 1 is characterized in that in the step 3, said abrasive dust makes that powder diameter is 800 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105761655A CN102532739A (en) | 2010-12-07 | 2010-12-07 | Process for preparing PVC (polyvinyl chloride) section material from waste PVC material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105761655A CN102532739A (en) | 2010-12-07 | 2010-12-07 | Process for preparing PVC (polyvinyl chloride) section material from waste PVC material |
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| CN102532739A true CN102532739A (en) | 2012-07-04 |
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| CN2010105761655A Pending CN102532739A (en) | 2010-12-07 | 2010-12-07 | Process for preparing PVC (polyvinyl chloride) section material from waste PVC material |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911458A (en) * | 2012-10-22 | 2013-02-06 | 广德天运无纺有限公司 | Polyvinyl chloride (PVC) sheet produced by utilizing waste PVC |
| CN103509275A (en) * | 2013-09-02 | 2014-01-15 | 滁州市富力克斯电线电缆有限公司 | Cable material produced from waste polyvinyl chloride cable material |
| CN103571076A (en) * | 2012-08-02 | 2014-02-12 | 河南新阳光建材有限公司 | Method for producing fireproof lightweight heat preservation wall panel by using waste polyvinyl chloride and product |
| CN103571078A (en) * | 2012-08-02 | 2014-02-12 | 河南新阳光建材有限公司 | Method for producing stone-plastic high-flame retardant heat insulation panel by using waste polyvinyl chloride and product |
| CN105086287A (en) * | 2015-09-09 | 2015-11-25 | 安徽天润塑业有限公司 | High-flame-retardant PVC board and production method thereof |
| CN105086286A (en) * | 2015-09-09 | 2015-11-25 | 安徽天润塑业有限公司 | Photosensitive PVC board and production method thereof |
| CN105111623A (en) * | 2015-09-17 | 2015-12-02 | 江苏金材科技有限公司 | PVC building formwork and preparation method thereof |
| CN105531308A (en) * | 2013-05-30 | 2016-04-27 | 梅塔玻利克斯公司 | Recyclate blends |
| US10030135B2 (en) | 2012-08-17 | 2018-07-24 | Cj Cheiljedang Corporation | Biobased rubber modifiers for polymer blends |
| TWI636860B (en) * | 2017-07-14 | 2018-10-01 | 寀呈股份有限公司 | Pla composition and manufacturing method of pla product |
| US10611903B2 (en) | 2014-03-27 | 2020-04-07 | Cj Cheiljedang Corporation | Highly filled polymer systems |
| CN112143125A (en) * | 2019-06-28 | 2020-12-29 | 合肥杰事杰新材料股份有限公司 | Polyvinyl chloride material and preparation method thereof |
| CN112321967A (en) * | 2020-11-06 | 2021-02-05 | 杨进德 | Environment-friendly regeneration method of PVC (polyvinyl chloride) pipe |
| CN115194983A (en) * | 2022-08-05 | 2022-10-18 | 桂林鸿汇新材料科技有限责任公司 | Manufacturing process for realizing functionality and usability of new plastic recycled material |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571076A (en) * | 2012-08-02 | 2014-02-12 | 河南新阳光建材有限公司 | Method for producing fireproof lightweight heat preservation wall panel by using waste polyvinyl chloride and product |
| CN103571078A (en) * | 2012-08-02 | 2014-02-12 | 河南新阳光建材有限公司 | Method for producing stone-plastic high-flame retardant heat insulation panel by using waste polyvinyl chloride and product |
| US10030135B2 (en) | 2012-08-17 | 2018-07-24 | Cj Cheiljedang Corporation | Biobased rubber modifiers for polymer blends |
| CN102911458A (en) * | 2012-10-22 | 2013-02-06 | 广德天运无纺有限公司 | Polyvinyl chloride (PVC) sheet produced by utilizing waste PVC |
| US10669417B2 (en) | 2013-05-30 | 2020-06-02 | Cj Cheiljedang Corporation | Recyclate blends |
| CN105531308B (en) * | 2013-05-30 | 2021-08-10 | Cj 第一制糖株式会社 | Recycle blends |
| CN105531308A (en) * | 2013-05-30 | 2016-04-27 | 梅塔玻利克斯公司 | Recyclate blends |
| CN103509275A (en) * | 2013-09-02 | 2014-01-15 | 滁州市富力克斯电线电缆有限公司 | Cable material produced from waste polyvinyl chloride cable material |
| CN103509275B (en) * | 2013-09-02 | 2016-01-06 | 安徽核芯电器有限公司 | A kind of CABLE MATERIALS utilizing waste polyvinyl chloride cable material to produce |
| US10611903B2 (en) | 2014-03-27 | 2020-04-07 | Cj Cheiljedang Corporation | Highly filled polymer systems |
| CN105086286A (en) * | 2015-09-09 | 2015-11-25 | 安徽天润塑业有限公司 | Photosensitive PVC board and production method thereof |
| CN105086287A (en) * | 2015-09-09 | 2015-11-25 | 安徽天润塑业有限公司 | High-flame-retardant PVC board and production method thereof |
| CN105111623A (en) * | 2015-09-17 | 2015-12-02 | 江苏金材科技有限公司 | PVC building formwork and preparation method thereof |
| TWI636860B (en) * | 2017-07-14 | 2018-10-01 | 寀呈股份有限公司 | Pla composition and manufacturing method of pla product |
| CN112143125A (en) * | 2019-06-28 | 2020-12-29 | 合肥杰事杰新材料股份有限公司 | Polyvinyl chloride material and preparation method thereof |
| CN112321967A (en) * | 2020-11-06 | 2021-02-05 | 杨进德 | Environment-friendly regeneration method of PVC (polyvinyl chloride) pipe |
| CN112321967B (en) * | 2020-11-06 | 2021-07-30 | 广东定通实业有限公司 | Environment-friendly regeneration method of PVC (polyvinyl chloride) pipe |
| CN115194983A (en) * | 2022-08-05 | 2022-10-18 | 桂林鸿汇新材料科技有限责任公司 | Manufacturing process for realizing functionality and usability of new plastic recycled material |
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Application publication date: 20120704 |