CN102229731A - Chlorinated polyvinyl chloride (CPVC) board and production process thereof - Google Patents
Chlorinated polyvinyl chloride (CPVC) board and production process thereof Download PDFInfo
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- CN102229731A CN102229731A CN2011101519939A CN201110151993A CN102229731A CN 102229731 A CN102229731 A CN 102229731A CN 2011101519939 A CN2011101519939 A CN 2011101519939A CN 201110151993 A CN201110151993 A CN 201110151993A CN 102229731 A CN102229731 A CN 102229731A
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- cpvc
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- polyvinyl chloride
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Abstract
The invention discloses a chlorinated polyvinyl chloride (CPVC) board and a production process thereof, and belongs to the technical field of plastic industry. The CPVC board is prepared from home-made CPVC resin, modified acrylonitrile butadiene styrene (ABS) resin, polyol ester lubricating agent, macromolecular wax lubricating agent, impact modifier chlorinated polyethylene (CPE), rare-earth composite stabilizer and bisphenol A antioxidant serving as raw materials by mixing, extrusion plasticizing, molding, cooling setting and traction cutting. The qualified CPVC board is continuously and stably produced by adopting the home-made resin and using reasonable equipment and die and reasonable formula and process conditions; and the board has relatively high tensile strength and bending strength, high thermal denaturation temperature and corrosion resistance.
Description
Technical field
The present invention relates to a kind of CPVC sheet material and production technique thereof, belong to the plastics industry technical field.
Background technology
Chlorinated polyvinyl chloride (cpvc) be chlorinated polyvinyl chloride again, is with the further chlorating product of polyvinyl chloride.The high chlorine contents of chlorinated polyvinyl chloride can reach 73.2% in theory, and general chlorinated polyvinyl chloride chlorinity of producing is 61%～68%.When chlorinity increases to 65% when above, the tensile strength of chlorinated polyvinyl chloride and flexural strength straight line rise, and fragility also increases simultaneously.Because the chlorinity of chlorinated polyvinyl chloride increases than polyvinyl chloride, the physical and mechanical properties of chlorinated polyvinyl chloride, particularly weathering resistance, ageing resistance, erosion resistance, heat-resisting ability, deformability, solubility and fire-retardant self-extinguishing are greatly improved, it is Application Areas tempo novel plastic material faster in recent years, be widely used in having very big market potential in chemical industry and the electronic product.
But because import CPVC resin price costliness, and therefore homemade CPVC resin treatment poor performance has limited the batch process of CPVC sheet material at present.
Summary of the invention
The objective of the invention is to have overcome above-mentioned the deficiencies in the prior art, a kind of CPVC sheet material and production technique thereof are provided, this technology is raw material serialization, batch process CPVC sheet material with homemade CPVC resin, this sheet material has higher draw tensile strength and flexural strength, high thermal denaturation temperature and erosion resistance.
Technical scheme of the present invention is: a kind of CPVC sheet material, it is characterized in that, raw material by following weight parts is made: CPVC resin 80-100 part, modified ABS resin (commercially available thermotolerance ABS resin commonly used) 1-20 part, polyol ester series lubricant agent 0.1-5 part, macromolecule wax series lubricant agent (polyethylene wax, preferred THK110) 0.1-5 part, impact modifier CPE 1-15 part, rare earth composite stabilizer (rare earth calcium zinc stabilizer, preferred XJ-168 high effect nontoxic rare earth calcium zinc one package stabilizer) 1-10 part, dihydroxyphenyl propane oxidation inhibitor 0.5-0.8 part.
Described polyol ester series lubricant agent is by glyceryl ester, pentaerythritol ester, sorbitol ester, sucrose ester and by the compound complex ester product of forming of this class ester.
Production Flow Chart: take by weighing raw material by above-mentioned weight part, mix in homogenizer, mixing temperature is 120～130 ℃; Send into parallel counter rotation twin screw extruder extrusion plasticizing then, the extrusion plasticizing temperature is controlled at 155～170 ℃, sends into mould molding again, and described die temperature is 155～170 ℃; After cooling and shaping, traction cutting, the examination and test of products obtain CPVC sheet material of the present invention.
Described parallel counter rotation twin screw extruder is preferably: L/D=26, and low compression ratio structure (compression ratio gets 4～4.5), engine speed is 8～12rpm; Described mould adopts low compression ratio (compression ratio is 4.5-5.5), exempts from the choked flow structure.
The CPVC sheet material that makes by above technology have higher draw tensile strength (〉=60MPa) and flexural strength (〉=110MPa), high thermal denaturation temperature (〉=96 ℃), degree of corrosion (60 ± 2 ℃ of following 5h): 40%NaOH-1.0～+ 1.0g/m
2, 40%HNO
3-1.0～+ 1.0g/m
2, 30%H
2SO
4-1.0～+ 1.0g/m
2, 35%HCl-2.0～+ 2.0g/m
2
Because homemade CPVC resin is easy to degrade at plastifying simultaneously, emits hydrogenchloride, thereby cause CPVC goods color burn, physical and mechanical properties descends, simultaneously because the increase of CPVC cl content, make the viscosity of resin increase thermostability, mobile variation.In order to improve its processing characteristics, the mould that the present invention adopts the parallel out-phase twin screw extruder of low compression ratio and low compression ratio, exempts from the choked flow structure.Prescription adopts composite rare-earth stabilizer and highly-efficient lubricant, to reduce melt viscosity, increases the mobile and stable of material.
The invention has the beneficial effects as follows: the present invention adopts domestic resin, selects for use rational equipment and mold, rational formula and processing condition to produce qualified CPVC sheet material continuously and stably.Product of the present invention detects through plastics industry center, Shandong Province.Condition for surveys: thickness 8mm, sample number into spectrum: 154
#, sample state: grey, tabular, intact, envrionment conditions (22 ℃/52%), sample size: 1200 * 600 (mm), survey date: 2010.11.18.Assay: density 1.50g/cm
3, tensile strength 63Mpa, flexural strength 122Mpa, 97 ℃ of thermal denaturation temperature (0.45Mpa).Detected result: quality product is qualified.
Embodiment
Embodiment 1
The CPVC resin (place of production: Weifang, Shandong) 100 parts, 10 parts of modified ABS resins, 2 parts of polyol ester series lubricant agents, 2 parts of macromolecule wax series lubricant agents, 8 parts of impact modifier CPE, 8 parts of rare earth composite stabilizers, 0.6 part in dihydroxyphenyl propane oxidation inhibitor.
Production Flow Chart: take by weighing raw material by above-mentioned weight part, mix in homogenizer, mixing temperature is 125 ℃; Send into parallel counter rotation twin screw extruder extrusion plasticizing then, the extrusion plasticizing temperature is controlled at 170 ℃, sends into mould molding again, and described die temperature is 170 ℃; After cooling and shaping, traction cutting, the examination and test of products obtain CPVC sheet material of the present invention.
Described parallel counter rotation twin screw extruder is preferably: L/D=26, and low compression ratio structure (compression ratio gets 4～4.5), engine speed is 8～12rpm; Described mould adopts low compression ratio (compression ratio is 4.5-5.5), exempts from the choked flow structure.
Embodiment 2
The CPVC resin (place of production: Weifang, Shandong) 100 parts, 8 parts of modified ABS resins, 1 part of polyol ester series lubricant agent, 1 part of macromolecule wax series lubricant agent, 5 parts of impact modifier CPE, 5 parts of rare earth composite stabilizers, 0.7 part in dihydroxyphenyl propane oxidation inhibitor.
Production Flow Chart: take by weighing raw material by above-mentioned weight part, mix in homogenizer, mixing temperature is 123 ℃; Send into parallel counter rotation twin screw extruder extrusion plasticizing then, the extrusion plasticizing temperature is controlled at 165 ℃, sends into mould molding again, and described die temperature is 165 ℃; After cooling and shaping, traction cutting, the examination and test of products obtain CPVC sheet material of the present invention.
Described parallel counter rotation twin screw extruder is preferably: L/D=26, and low compression ratio structure (compression ratio gets 4～4.5), engine speed is 8～12rpm; Described mould adopts low compression ratio (compression ratio is 4.5-5.5), exempts from the choked flow structure.
Embodiment 3
The CPVC resin (place of production: Weifang, Shandong) 100 parts, 12 parts of modified ABS resins, 1.5 parts of polyol ester series lubricant agents, 3 parts of macromolecule wax series lubricant agents, 10 parts of impact modifier CPE, 8 parts of rare earth composite stabilizers, 0.8 part in dihydroxyphenyl propane oxidation inhibitor.
Production Flow Chart: take by weighing raw material by above-mentioned weight part, mix in homogenizer, mixing temperature is 126 ℃; Send into parallel counter rotation twin screw extruder extrusion plasticizing then, the extrusion plasticizing temperature is controlled at 168 ℃, sends into mould molding again, and described die temperature is 168 ℃; After cooling and shaping, traction cutting, the examination and test of products obtain CPVC sheet material of the present invention.
Described parallel counter rotation twin screw extruder is preferably: L/D=26, and low compression ratio structure (compression ratio gets 4～4.5), engine speed is 8～12rpm; Described mould adopts low compression ratio (compression ratio is 4.5-5.5), exempts from the choked flow structure.
Claims (3)
1. CPVC sheet material, it is characterized in that, raw material by following weight parts is made, CPVC resin 80-100 part, thermotolerance ABS resin 1-20 part, polyol ester series lubricant agent 0.1-5 part, macromolecule wax series lubricant agent 0.1-5 part, impact modifier CPE 1-15 part, rare earth composite stabilizer 1-10 part, dihydroxyphenyl propane oxidation inhibitor 0.5-0.8 part.
2. the described CPVC plank stuff production technology of claim 1 is characterized in that, takes by weighing raw material by the described weight part of claim 1, mixes in homogenizer, and mixing temperature is 120～130 ℃; Send into parallel counter rotation twin screw extruder extrusion plasticizing then, the extrusion plasticizing temperature is controlled at 155～170 ℃, sends into mould molding again, and described die temperature is 155～170 ℃; After cooling and shaping, traction cutting, the examination and test of products obtain CPVC sheet material.
3. CPVC plank stuff production technology as claimed in claim 2 is characterized in that, the L/D=26 of described parallel counter rotation twin screw extruder, compression ratio are 4～4.5, and engine speed is 8～12rpm; Described mould adopts low compression ratio, exempts from the choked flow structure, and described mould compression ratio is 4.5-5.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110151993 CN102229731B (en) | 2011-06-08 | 2011-06-08 | Chlorinated polyvinyl chloride (CPVC) board and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110151993 CN102229731B (en) | 2011-06-08 | 2011-06-08 | Chlorinated polyvinyl chloride (CPVC) board and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102229731A true CN102229731A (en) | 2011-11-02 |
| CN102229731B CN102229731B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110151993 Active CN102229731B (en) | 2011-06-08 | 2011-06-08 | Chlorinated polyvinyl chloride (CPVC) board and production process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766302A (en) * | 2012-08-13 | 2012-11-07 | 青岛海洋鲨科技有限公司 | Formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride and pipe preparation method |
| CN104927261A (en) * | 2015-05-21 | 2015-09-23 | 青岛科凯达橡塑有限公司 | Corrosion-resistant electric conduction and heat conduction chlorinated polyvinyl chloride resin material and preparation method and application thereof |
Citations (7)
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|---|---|---|---|---|
| JPH0610272B2 (en) * | 1986-08-07 | 1994-02-09 | 鐘淵化学工業株式会社 | Method for producing pre-expanded chlorinated vinyl chloride resin particles |
| US20050112311A1 (en) * | 2003-11-26 | 2005-05-26 | Dalal Girish T. | CPVC compositions having good impact strength and heat stability, and smooth surfaces |
| CN1631967A (en) * | 2004-11-08 | 2005-06-29 | 刘玉水 | Chlorinated polyvinyl-chloride plate |
| EP2045290A1 (en) * | 2007-10-05 | 2009-04-08 | Rohm and Haas Company | Improved polymer composition |
| CN101486821A (en) * | 2008-10-28 | 2009-07-22 | 广东联塑科技实业有限公司 | Nontoxic chlorinated polyvinyl chloride pipe and preparation thereof |
| CN101704978A (en) * | 2009-11-17 | 2010-05-12 | 上海氯碱化工股份有限公司 | Method for improving processability of chlorinated polyvinyl chloride resin |
| CN101880429A (en) * | 2010-08-11 | 2010-11-10 | 聊城大学 | High-tenacity heat-resisting ageing-resisting chlorinated polyvinyl chloride alloy material and preparation method thereof |
-
2011
- 2011-06-08 CN CN 201110151993 patent/CN102229731B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610272B2 (en) * | 1986-08-07 | 1994-02-09 | 鐘淵化学工業株式会社 | Method for producing pre-expanded chlorinated vinyl chloride resin particles |
| US20050112311A1 (en) * | 2003-11-26 | 2005-05-26 | Dalal Girish T. | CPVC compositions having good impact strength and heat stability, and smooth surfaces |
| CN1631967A (en) * | 2004-11-08 | 2005-06-29 | 刘玉水 | Chlorinated polyvinyl-chloride plate |
| EP2045290A1 (en) * | 2007-10-05 | 2009-04-08 | Rohm and Haas Company | Improved polymer composition |
| CN101486821A (en) * | 2008-10-28 | 2009-07-22 | 广东联塑科技实业有限公司 | Nontoxic chlorinated polyvinyl chloride pipe and preparation thereof |
| CN101704978A (en) * | 2009-11-17 | 2010-05-12 | 上海氯碱化工股份有限公司 | Method for improving processability of chlorinated polyvinyl chloride resin |
| CN101880429A (en) * | 2010-08-11 | 2010-11-10 | 聊城大学 | High-tenacity heat-resisting ageing-resisting chlorinated polyvinyl chloride alloy material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马军,袁茂全,牟南翔,胡妹华,王建,武德珍: "CPVC/ABS/CPE三元共混体系的组成与性能关系研究", 《中国塑料》, vol. 24, no. 7, 31 July 2010 (2010-07-31), pages 25 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766302A (en) * | 2012-08-13 | 2012-11-07 | 青岛海洋鲨科技有限公司 | Formula for plastic pipe acrylonitrile butadiene styrene (ABS) modified hard chlorinated polyvinyl chloride and pipe preparation method |
| CN104927261A (en) * | 2015-05-21 | 2015-09-23 | 青岛科凯达橡塑有限公司 | Corrosion-resistant electric conduction and heat conduction chlorinated polyvinyl chloride resin material and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102229731B (en) | 2013-03-06 |
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