WO2022160451A1 - Easy-processing cpvc composition, preparation method therefor and use thereof - Google Patents
Easy-processing cpvc composition, preparation method therefor and use thereof Download PDFInfo
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- WO2022160451A1 WO2022160451A1 PCT/CN2021/083577 CN2021083577W WO2022160451A1 WO 2022160451 A1 WO2022160451 A1 WO 2022160451A1 CN 2021083577 W CN2021083577 W CN 2021083577W WO 2022160451 A1 WO2022160451 A1 WO 2022160451A1
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- 239000000203 mixture Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title description 6
- 239000004801 Chlorinated PVC Substances 0.000 claims abstract description 94
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims abstract description 94
- 239000011347 resin Substances 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 21
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000460 chlorine Substances 0.000 claims abstract description 16
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 16
- 239000004609 Impact Modifier Substances 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000049 pigment Substances 0.000 claims abstract description 9
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000001038 titanium pigment Substances 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims description 2
- 235000020188 drinking water Nutrition 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000005543 nano-size silicon particle Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004709 Chlorinated polyethylene Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229920004482 WACKER® Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004209 oxidized polyethylene wax Substances 0.000 description 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000001052 yellow pigment Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- C08L27/22—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 modified by chemical after-treatment
- C08L27/24—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 modified by chemical after-treatment halogenated
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
Definitions
- the present invention relates to the technical field of plastic processing, and more particularly, to an easy-to-process CPVC composition and a preparation method and application thereof.
- Chlorinated polyvinyl chloride resin has excellent properties such as high strength, heat resistance, weather resistance, chemical medium corrosion resistance, flame retardant, smoke suppression, etc.
- the operating temperature can be 40 °C higher than that of PVC resin.
- the chlorine content is higher, the heat resistance is better, but the processing performance is worse.
- the processing performance of CPVC with a chlorine content of more than 67% is worse, and it is very easy to paste during production, which leads to the failure of normal production.
- the mechanical properties are generally reduced by And heat resistance in exchange for easy processing performance, the chlorine content of CPVC is 60-63% for processing and production.
- the production method of PVC pipes is based on chlorinated polyvinyl chloride (CPVC) and polyvinyl chloride (PVC) resin as the main raw materials, and then selectively adds additives such as stabilizers, lubricants, fillers and color enhancers.
- CPVC chlorinated polyvinyl chloride
- PVC polyvinyl chloride
- additives such as stabilizers, lubricants, fillers and color enhancers.
- the chlorine content of CPVC is generally relatively low, resulting in insufficient heat resistance and mechanical properties of PVC pipes, which limits the application of PVC pipes in high heat resistance and high mechanical properties.
- Cid117114A discloses a PVC heat-resistant pipe and its preparation method, mainly adding chlorinated polyethylene and PVC resin to the system, but its mechanical properties and heat resistance are not good.
- the present invention provides an easy-to-process CPVC composition in order to overcome the defects of high processing difficulty, poor mechanical properties and poor heat resistance of the CPVC with high chlorine content.
- Another object of the present invention is to provide a preparation method of the easy-to-process CPVC composition.
- Another object of the present invention is to provide applications of the easily processable CPVC composition.
- An easy-to-process CPVC composition comprising the following components calculated in parts by weight:
- the particle size of the CPVC recycled material is greater than or equal to 40 meshes
- the chlorine content in the CPVC resin powder is greater than or equal to 67 wt%.
- the CPVC resin with chlorine content greater than or equal to 67 wt% is selected to make the CPVC composition have very good mechanical properties and heat resistance; meanwhile, in order to prevent the defect of poor processing performance, the method of blending PVC resin powder and CPVC recycled material is adopted.
- Improve processing performance; CPVC recycled material can promote plasticization, and can also reduce melt viscosity and improve processing performance; among them, when selecting CPVC recycled material with a particle size greater than or equal to 40 mesh, when blending with PVC, the dispersion effect is better, and it can improve the processing performance.
- the processing performance is greatly improved, and the mechanical properties are better.
- the content of CPVC recycled material should not be too much. Too much will affect the quality of CPVC pipes. If it is too low, the above effects cannot be achieved. Selecting recycled CPVC materials can also be further achieved. Waste recycling is good for environmental protection.
- the chlorine content in the CPVC resin powder is 67-70wt%.
- the CPVC recycled material refers to the fact that in the production process of CPVC pipe, due to the processing temperature, speed, vacuum degree of the extrusion equipment, etc., the outer diameter will be too large and small, and the non-roundness of the pipe will be too large.
- the materials of qualified products can be recycled.
- the recycling method is as follows: the pipes are crushed by a crusher, and the crushed pellets are ground, so that the particle size of the recycled material is greater than or equal to 40 meshes, and its main components are CPVC resin content of 60-80wt%, PVC resin content 80-100wt%, and also contain impact modifier 6-12wt%.
- the ready-to-process CPVC composition comprises the following components in parts by weight:
- the impact modifier is one of ACR impact modifier, MBS impact modifier or CPE.
- the lubricant is one of polyethylene wax or oxidized polyethylene wax.
- the average particle size of the nano-silica is 10-50 nm.
- the CPVC composition further contains a pigment, and the pigment is 0.02-0.1 part.
- the pigment is one of organic yellow pigment or orange-red powder.
- the calcium-zinc stabilizer is an environment-friendly calcium-zinc stabilizer.
- the present invention also provides the easy-to-process CPVC composition, comprising the steps of:
- step S2 The premix of step S1 is added to the extrusion equipment for extrusion to obtain the CPVC composition.
- the processing temperature of the extruder is 160-210°C.
- the invention provides an easy-to-process CPVC composition.
- CPVC resin with a chlorine content greater than or equal to 67 wt% is selected so that the CPVC pipe has very good mechanical properties and heat resistance; at the same time, in order to prevent poor processability
- the defects of PVC resin powder and recycled materials are used to improve the processing performance; the Vicat softening temperature is greater than 90°C; the tensile yield strength is greater than 49MPa.
- reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.
- CPVC resin powder A chlorine content 67wt%, Hanwha CPVC-C67;
- CPVC resin powder B chlorine content 68wt%, Hanwha CPVC-C68;
- CPVC resin powder C chlorine content 70wt%, Hanwha CPVC-C70;
- CPVC resin powder D chlorine content 60wt%, Hanwha CPVC-C60;
- CPVC recycled material A particle size 40 mesh
- CPVC recycled material B particle size 60 mesh
- CPVC recycled material C particle size 80 mesh
- CPVC recycled material D particle size 10 mesh
- CPVC recycled material E particle size 20 mesh
- CPVC pipe waste products are crushed and subjected to a grinding process, and then the materials are sieved according to a specified mesh screen.
- the content of CPVC resin in the CPVC pipe waste is 60wt%
- the content of PVC resin is 100wt%
- the impact modifier is 6-12wt%.
- Nano silica Wacker N20;
- ACR processing aid Japan Zhongyuan PA-40;
- Rutile titanium dioxide Jinpu Titanium NR-950;
- the easy-to-process CPVC pipes of the Examples and Comparative Examples were prepared by the following methods, and the preparation method of the CPVC pipes included the following steps:
- step S1 is added to the extrusion equipment for extrusion to obtain the CPVC pipe material.
- the processing temperature of the extruder is 180°C in zone 1, 175°C in zone 2, 165°C in zone 3, 160°C in zone 4, 165°C in flange section, 160-170°C in die body zone, and 210°C in die.
- Example 1 Example 2
- Example 3 Example 4
- Example 5 CPVC resin powder A 50 — — — — CPVC resin powder B — 50 — — — —
- Yield total weight of qualified pipes / total weight of raw materials * 100%, the higher the yield, the better the processing performance.
- the particle size of the CPVC recycled material has a great influence on the mechanical properties. If the particle size is less than 40 mesh or the CPVC recycled material is not added, the mechanical properties are greatly reduced, which does not meet the requirements of the pipe.
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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)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Provided is an easy-processing CPVC composition, the CPVC composition comprising the following components, in parts by weight: 25-75 parts of a CPVC resin powder, 25-75 parts of a PVC resin powder, 5-20 parts of a CPVC recycled material, 3-8 parts of a calcium-zinc stabilizer, 2-8 parts of nano silicon dioxide, 2-6 parts of an impact modifier, 1.5-2.5 parts of a lubricant, 1-3 parts of an ACR processing aid, 2-3 parts of rutile-type titanium dioxide, and 0.02-0.1 parts of a pigment, wherein the particle size of a PVC recycled material is greater than or equal to 40 meshes, and the chlorine content of the CPVC resin powder is greater than or equal to 67 wt%. A CPVC pipe has better heat resistance and mechanical properties, and is easy to process. The vicat softening temperature is higher than 90ºC, and the tensile yield strength is greater than 49 MPa.
Description
本发明涉及塑料加工技术领域，更具体地，涉及一种易加工CPVC组合物及其制备方法和应用。The present invention relates to the technical field of plastic processing, and more particularly, to an easy-to-process CPVC composition and a preparation method and application thereof.
氯化聚氯乙烯树脂具有强度高、耐热、耐候、耐化学介质腐蚀、阻燃、抑烟等优异的性能，尤其使用温度可较PVC树脂高40℃。当氯含量越高，耐热性越好，但加工性能越差，氯含量在67％以上的CPVC加工性能更差，生产中极易糊料，导致无法正常生产，目前一般都通过降低力学性能和耐热性能来换取易加工性能，采用CPVC的氯含量在60～63％进行加工生产。Chlorinated polyvinyl chloride resin has excellent properties such as high strength, heat resistance, weather resistance, chemical medium corrosion resistance, flame retardant, smoke suppression, etc. In particular, the operating temperature can be 40 °C higher than that of PVC resin. When the chlorine content is higher, the heat resistance is better, but the processing performance is worse. The processing performance of CPVC with a chlorine content of more than 67% is worse, and it is very easy to paste during production, which leads to the failure of normal production. At present, the mechanical properties are generally reduced by And heat resistance in exchange for easy processing performance, the chlorine content of CPVC is 60-63% for processing and production.
目前PVC管材的生产方法是以氯化聚氯乙烯(CPVC)及聚氯乙烯(PVC)树脂为主要原料，再选择性地加入稳定剂、润滑剂、填充剂和增色剂等添加剂，经挤出机挤出成型，最后通过定型、冷却、标识、切割、检验、包装等工序完成管材的生产。但是CPVC的氯含量一般都比较低，导致PVC管材的耐热性能和力学性能不够好，限制了PVC管材在高耐热和高力学性能方面的应用。At present, the production method of PVC pipes is based on chlorinated polyvinyl chloride (CPVC) and polyvinyl chloride (PVC) resin as the main raw materials, and then selectively adds additives such as stabilizers, lubricants, fillers and color enhancers. Machine extrusion molding, and finally complete the production of pipes through shaping, cooling, marking, cutting, inspection, packaging and other processes. However, the chlorine content of CPVC is generally relatively low, resulting in insufficient heat resistance and mechanical properties of PVC pipes, which limits the application of PVC pipes in high heat resistance and high mechanical properties.
中国专利(CN111117114A)公开了一种PVC耐热管材及其制备方法，主要在体系中加入了氯化聚乙烯和PVC树脂，但是其力学性能和耐热性能不好。Chinese patent (CN111117114A) discloses a PVC heat-resistant pipe and its preparation method, mainly adding chlorinated polyethylene and PVC resin to the system, but its mechanical properties and heat resistance are not good.
发明内容SUMMARY OF THE INVENTION
本发明为克服上述高氯含量的CPVC加工难度大、力学性能差、耐热性不好的缺陷，提供一种易加工CPVC组合物。The present invention provides an easy-to-process CPVC composition in order to overcome the defects of high processing difficulty, poor mechanical properties and poor heat resistance of the CPVC with high chlorine content.
本发明的另一目的在于提供所述易加工CPVC组合物的制备方法。Another object of the present invention is to provide a preparation method of the easy-to-process CPVC composition.
本发明的另一目的在于提供所述易加工CPVC组合物的应用。Another object of the present invention is to provide applications of the easily processable CPVC composition.
为实现上述目的，本发明采用的技术方案是：For achieving the above object, the technical scheme adopted in the present invention is:
一种易加工CPVC组合物，包括如下按重量份计算的组分：An easy-to-process CPVC composition, comprising the following components calculated in parts by weight:
所述CPVC回收料的粒径大于等于40目；The particle size of the CPVC recycled material is greater than or equal to 40 meshes;
所述CPVC树脂粉中的氯含量大于等于67wt％。The chlorine content in the CPVC resin powder is greater than or equal to 67 wt%.
本发明选择氯含量大于等于67wt％的CPVC树脂使得CPVC组合物具有非常好的力学性能和耐热性能；同时为了防止加工性能差的缺陷，采用了PVC树脂粉和CPVC回收料共混的方式来提高加工性能；CPVC回收料能够促进塑化，也能够降低熔体粘度，提高加工性能；其中，当选择粒径大于等于40目时的CPVC回收料时与PVC共混时分散效果更好，能极大地提高了加工性能，力学性能更好，另外，CPVC回收料的含量不能过多，过多也会影响CPVC管材的质量，太低则不能实现上述效果，选择回收CPVC料也可进一步的实现废料回收，有利于环保。In the present invention, the CPVC resin with chlorine content greater than or equal to 67 wt% is selected to make the CPVC composition have very good mechanical properties and heat resistance; meanwhile, in order to prevent the defect of poor processing performance, the method of blending PVC resin powder and CPVC recycled material is adopted. Improve processing performance; CPVC recycled material can promote plasticization, and can also reduce melt viscosity and improve processing performance; among them, when selecting CPVC recycled material with a particle size greater than or equal to 40 mesh, when blending with PVC, the dispersion effect is better, and it can improve the processing performance. The processing performance is greatly improved, and the mechanical properties are better. In addition, the content of CPVC recycled material should not be too much. Too much will affect the quality of CPVC pipes. If it is too low, the above effects cannot be achieved. Selecting recycled CPVC materials can also be further achieved. Waste recycling is good for environmental protection.
所述CPVC树脂粉中的氯含量为67～70wt％。The chlorine content in the CPVC resin powder is 67-70wt%.
所述CPVC回收料是指CPVC管材生产过程中，由于挤出设备的加工温度、速度、真空度等原因，会出现外径偏大偏小、管材不圆度偏大等情况，这类型的不合格品的材料可以回收利用。其回收利用方式为管材采用破碎机进行破碎，破碎后的粒料进行磨粉，使得回收料的粒径大于等于40目，其组成成分主要为CPVC树脂的含量为60～80wt％，PVC树脂含量80～100wt％，还含有抗冲击改性剂6～12wt％。The CPVC recycled material refers to the fact that in the production process of CPVC pipe, due to the processing temperature, speed, vacuum degree of the extrusion equipment, etc., the outer diameter will be too large and small, and the non-roundness of the pipe will be too large. The materials of qualified products can be recycled. The recycling method is as follows: the pipes are crushed by a crusher, and the crushed pellets are ground, so that the particle size of the recycled material is greater than or equal to 40 meshes, and its main components are CPVC resin content of 60-80wt%, PVC resin content 80-100wt%, and also contain impact modifier 6-12wt%.
优选地，所述易加工CPVC组合物包括如下按重量份计算的组分：Preferably, the ready-to-process CPVC composition comprises the following components in parts by weight:
优选地，所述抗冲击改性剂为ACR抗冲击改性剂、MBS抗冲击改性剂或CPE中的一种。Preferably, the impact modifier is one of ACR impact modifier, MBS impact modifier or CPE.
优选地，所述润滑剂为聚乙烯蜡或氧化聚乙烯蜡中的一种。Preferably, the lubricant is one of polyethylene wax or oxidized polyethylene wax.
优选地，所述纳米二氧化硅的平均粒径为10～50nm。Preferably, the average particle size of the nano-silica is 10-50 nm.
优选地，所述CPVC组合物还含有颜料，所述颜料为0.02～0.1份。Preferably, the CPVC composition further contains a pigment, and the pigment is 0.02-0.1 part.
所述颜料为有机黄颜料或橘红粉中的一种。The pigment is one of organic yellow pigment or orange-red powder.
优选地，所述钙锌稳定剂为环保型钙锌稳定剂。Preferably, the calcium-zinc stabilizer is an environment-friendly calcium-zinc stabilizer.
本发明还提供所述易加工CPVC组合物，包括如下步骤：The present invention also provides the easy-to-process CPVC composition, comprising the steps of:
S1.按比例称量CPVC树脂粉、PVC树脂粉、CPVC回收料、钙锌稳定剂、纳米二氧化硅、抗冲击改性剂、润滑剂、ACR加工助剂、金红石型钛白粉、颜料混合均匀；得到预混料；S1. Proportionally weigh CPVC resin powder, PVC resin powder, CPVC recycled material, calcium zinc stabilizer, nano-silica, impact modifier, lubricant, ACR processing aid, rutile titanium dioxide, and pigment to mix evenly ; get a premix;
S2.将步骤S1的预混料加入到挤出设备中挤出，即得CPVC组合物。S2. The premix of step S1 is added to the extrusion equipment for extrusion to obtain the CPVC composition.
优选地，所述挤出机的加工温度为160～210℃。Preferably, the processing temperature of the extruder is 160-210°C.
所述易加工CPVC组合物在饮用水管材、消防管中的应用。Application of the easy-to-process CPVC composition in drinking water pipes and fire-fighting pipes.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
本发明提供一种易加工CPVC组合物，所述CPVC组合物的配方中红选择氯含量大于等于67wt％的CPVC树脂使得CPVC管材具有非常好的力学性能和耐热性能；同时为了防止加工性能差的缺陷，采用了PVC树脂粉和回收料共混的方式来提高加工性能；维卡软化温度大于90℃；拉伸屈服强度大于49MPa。The invention provides an easy-to-process CPVC composition. In the formula of the CPVC composition, CPVC resin with a chlorine content greater than or equal to 67 wt% is selected so that the CPVC pipe has very good mechanical properties and heat resistance; at the same time, in order to prevent poor processability The defects of PVC resin powder and recycled materials are used to improve the processing performance; the Vicat softening temperature is greater than 90℃; the tensile yield strength is greater than 49MPa.
下面将对本发明实施例中的技术方案进行清楚、完整地描述，但本发明的实施方式不限于此。The technical solutions in the embodiments of the present invention will be clearly and completely described below, but the embodiments of the present invention are not limited thereto.
本发明所采用的试剂、方法和设备，如无特殊说明，均为本技术领域常规试剂、方法和设备。The reagents, methods and equipment used in the present invention, unless otherwise specified, are conventional reagents, methods and equipment in the technical field.
以下实施例及对比例中采用的原料如下：The raw materials used in the following examples and comparative examples are as follows:
CPVC树脂粉A：氯含量67wt％，韩华CPVC-C67；CPVC resin powder A: chlorine content 67wt%, Hanwha CPVC-C67;
CPVC树脂粉B：氯含量68wt％，韩华CPVC-C68；CPVC resin powder B: chlorine content 68wt%, Hanwha CPVC-C68;
CPVC树脂粉C：氯含量70wt％，韩华CPVC-C70；CPVC resin powder C: chlorine content 70wt%, Hanwha CPVC-C70;
CPVC树脂粉D：氯含量60wt％，韩华CPVC-C60；CPVC resin powder D: chlorine content 60wt%, Hanwha CPVC-C60;
CPVC回收料A：粒径40目；CPVC recycled material A: particle size 40 mesh;
CPVC回收料B：粒径60目；CPVC recycled material B: particle size 60 mesh;
CPVC回收料C：粒径80目；CPVC recycled material C: particle size 80 mesh;
CPVC回收料D：粒径10目；CPVC recycled material D: particle size 10 mesh;
CPVC回收料E：粒径20目；CPVC recycled material E: particle size 20 mesh;
上述CPVC回收料的制备方法：CPVC管材废品破碎后经过磨粉工序，然后按规定目数筛网将材料筛分所得。CPVC管材废品中CPVC树脂的含量为60wt％，PVC树脂含量100wt％，还含有抗冲击改性剂6～12wt％。The preparation method of the above-mentioned CPVC recycled material: CPVC pipe waste products are crushed and subjected to a grinding process, and then the materials are sieved according to a specified mesh screen. The content of CPVC resin in the CPVC pipe waste is 60wt%, the content of PVC resin is 100wt%, and the impact modifier is 6-12wt%.
钙锌稳定剂：熊牌161FP；Calcium and zinc stabilizer: Bear brand 161FP;
纳米二氧化硅：瓦克N20；Nano silica: Wacker N20;
抗冲击改性剂：日本钟渊FM-40；Impact modifier: Japan Zhongyuan FM-40;
润滑剂：泰利TL-100；Lubricant: Terry TL-100;
ACR加工助剂：日本钟渊PA-40；ACR processing aid: Japan Zhongyuan PA-40;
金红石型钛白粉：金浦钛业NR-950；Rutile titanium dioxide: Jinpu Titanium NR-950;
颜料：科美斯YM-02。Pigment: Comex YM-02.
实施例和对比例的易加工CPVC管材通过下述方法制备，所述CPVC管材的制备方法包括如下步骤：The easy-to-process CPVC pipes of the Examples and Comparative Examples were prepared by the following methods, and the preparation method of the CPVC pipes included the following steps:
S1.按比例称量CPVC树脂粉、PVC树脂粉、CPVC回收料、钙锌稳定剂、纳米二氧化硅、抗冲击改性剂、润滑剂、ACR加工助剂、金红石型钛白粉、颜料混合均匀；得到预混料；S1. Proportionally weigh CPVC resin powder, PVC resin powder, CPVC recycled material, calcium zinc stabilizer, nano-silica, impact modifier, lubricant, ACR processing aid, rutile titanium dioxide, and pigment to mix evenly ; get a premix;
S2.将步骤S1的预混料加入到挤出设备中挤出，即得CPVC管材。所述挤出机的加工温度分别为1区180℃、2区175℃、3区165℃、4区160℃、法兰段165℃、模体区160～170℃、口模210℃。S2. The premix of step S1 is added to the extrusion equipment for extrusion to obtain the CPVC pipe material. The processing temperature of the extruder is 180°C in zone 1, 175°C in zone 2, 165°C in zone 3, 160°C in zone 4, 165°C in flange section, 160-170°C in die body zone, and 210°C in die.
实施例1～5Examples 1 to 5
表1实施例1～5的配方(份)Formulations (parts) of Table 1 Examples 1-5
| 实施例1Example 1 | 实施例2Example 2 | 实施例3Example 3 | 实施例4Example 4 | 实施例5Example 5 | |
| CPVC树脂粉ACPVC resin powder A | 5050 | —— | —— | —— | —— |
| CPVC树脂粉BCPVC resin powder B | —— | 5050 | —— | —— | —— |
| CPVC树脂粉CCPVC resin powder C | —— | —— | 5050 | 5050 | 5050 |
| PVC树脂粉PVC resin powder | 5050 | 5050 | 5050 | —— | —— |
| CPVC回收料BCPVC Recycled Material B | 1010 | 1010 | 1010 | —— | —— |
| CPVC回收料ACPVC recycled material A | —— | —— | —— | 1010 | —— |
| CPVC回收料CCPVC recycled material C | —— | —— | —— | —— | 1010 |
| 钙锌稳定剂calcium zinc stabilizer | 55 | 55 | 55 | 55 | 55 |
| 纳米二氧化硅Nano silica | 55 | 55 | 55 | 55 | 55 |
| 抗冲击改性剂impact modifier | 44 | 44 | 44 | 44 | 44 |
| 润滑剂lubricant | 22 | 22 | 22 | 22 | 22 |
| ACR加工助剂ACR processing aids | 11 | 11 | 11 | 11 | 11 |
| 金红石型钛白粉Rutile Titanium Dioxide | 22 | 22 | 22 | 22 | 22 |
| 颜料pigment | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 |
实施例6～13Examples 6 to 13
表2实施例6～13的配方(份)Formulations (parts) of Table 2 Examples 6-13
实施例14～20Examples 14 to 20
表2实施例14～20的配方(份)Formulations (parts) of Table 2 Examples 14-20
| 实施例Example | 实施例Example | 实施例Example | 实施例Example | 实施例Example | 实施例Example | 实施例Example |
| 1414 | 1515 | 1616 | 1717 | 1818 | 1919 | 2020 | |
| CPVC树脂粉CCPVC resin powder C | 5050 | 5050 | 5050 | 5050 | 5050 | 5050 | 5050 |
| PVC树脂粉PVC resin powder | 5050 | 5050 | 5050 | 5050 | 5050 | 5050 | 5050 |
| CPVC回收料BCPVC Recycled Material B | 55 | 88 | 1515 | 2020 | 1010 | 1010 | 1010 |
| 钙锌稳定剂calcium zinc stabilizer | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| 纳米二氧化硅Nano silica | 55 | 55 | 55 | 55 | 33 | 77 | 88 |
| 抗冲击改性剂impact modifier | 44 | 44 | 44 | 44 | 44 | 44 | 44 |
| 润滑剂lubricant | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| ACR加工助剂ACR processing aids | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 金红石型钛白粉Rutile Titanium Dioxide | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| 颜料pigment | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 |
对比例1～4Comparative Examples 1 to 4
表3对比例1～4的配方(份)Table 3 Formulas (parts) of Comparative Examples 1 to 4
| 对比例1Comparative Example 1 | 对比例2Comparative Example 2 | 对比例3Comparative Example 3 | 对比例4Comparative Example 4 | |
| CPVC树脂粉CCPVC resin powder C | —— | 5050 | 5050 | 5050 |
| CPVC树脂粉DCPVC resin powder D | 5050 | —— | —— | —— |
| PVC树脂粉PVC resin powder | 5050 | 5050 | 5050 | 5050 |
| CPVC回收料BCPVC Recycled Material B | 55 | —— | —— | —— |
| CPVC回收料DCPVC recycled material D | —— | 55 | —— | —— |
| CPVC回收料ECPVC recycled material E | —— | —— | 55 | —— |
| 钙锌稳定剂calcium zinc stabilizer | 55 | 55 | 55 | 55 |
| 纳米二氧化硅Nano silica | 55 | 55 | 55 | 55 |
| 抗冲击改性剂impact modifier | 44 | 44 | 44 | 44 |
| 润滑剂lubricant | 22 | 22 | 22 | 22 |
| ACR加工助剂ACR processing aids | 11 | 11 | 11 | 11 |
| 金红石型钛白粉Rutile Titanium Dioxide | 22 | 22 | 22 | 22 |
| 颜料pigment | 0.050.05 | 0.050.05 | 0.050.05 | 0.050.05 |
上述实施例和对比例均通过下述测试方法测试性能：Above-mentioned embodiment and comparative example all pass the following test method test performance:
1.冲击强度：GB/T 14152-2001；1. Impact strength: GB/T 14152-2001;
2.维卡软化温度：GB/T8802-2001；2. Vicat softening temperature: GB/T8802-2001;
3.拉伸屈服强度：GB/T8004.2-2003；3. Tensile yield strength: GB/T8004.2-2003;
4.成品率：成品率＝合格管材总重量/原料总重量*100％，成品率越高，加工性能越好。4. Yield: Yield = total weight of qualified pipes / total weight of raw materials * 100%, the higher the yield, the better the processing performance.
表4实施例和对比例的数据Table 4 Data of Examples and Comparative Examples
从实施例1～5看，CPVC树脂的氯含量越高，力学性能越好，包括维卡温度和拉伸强度越高。From Examples 1 to 5, the higher the chlorine content of the CPVC resin, the better the mechanical properties, including the higher Vicat temperature and tensile strength.
从实施例6～17看，CPVC树脂粉在配方中的比例越低，力学性能强度越低，但熔体强度较低，易于加工成型。From Examples 6 to 17, the lower the proportion of CPVC resin powder in the formula, the lower the mechanical property strength, but the lower melt strength, which is easy to process and shape.
从实施例18～20看，纳米二氧化硅在配方中的比例越高，维卡温度越高，但拉伸强度越低。From Examples 18-20, the higher the proportion of nano-silica in the formula, the higher the Vicat temperature, but the lower the tensile strength.
从对比例1～4看，CPVC回收料的粒径对力学性能有较大的影响，粒径小于40目或者不加入CPVC回收料，其力学性能下降都较大，不满足管材的要求。From the comparative examples 1 to 4, the particle size of the CPVC recycled material has a great influence on the mechanical properties. If the particle size is less than 40 mesh or the CPVC recycled material is not added, the mechanical properties are greatly reduced, which does not meet the requirements of the pipe.
显然，本发明的上述实施例仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明权利要求的保护范围之内。Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
Claims (10)
- 一种易加工CPVC组合物，其特征在于，包括如下按重量份计算的组分：An easy-to-process CPVC composition, characterized in that it comprises the following components calculated in parts by weight:
所述CPVC回收料的粒径大于等于40目；The particle size of the CPVC recycled material is greater than or equal to 40 meshes;所述CPVC树脂粉中的氯含量大于等于67wt％。The chlorine content in the CPVC resin powder is greater than or equal to 67 wt%. - 根据权利要求1所述易加工CPVC组合物，其特征在于，所述易加工CPVC组合物包括如下按重量份计算的组分：The easy-to-process CPVC composition according to claim 1, wherein the easy-to-process CPVC composition comprises the following components calculated in parts by weight:
- 根据权利要求1所述易加工CPVC组合物，其特征在于，所述抗冲击改性剂为ACR抗冲击改性剂。The easy-to-process CPVC composition of claim 1, wherein the impact modifier is an ACR impact modifier.
- 根据权利要求1所述易加工CPVC组合物，其特征在于，所述润滑剂为聚乙烯蜡和低氧化度聚乙烯蜡。The easy-to-process CPVC composition according to claim 1, wherein the lubricant is polyethylene wax and low oxidation degree polyethylene wax.
- 根据权利要求1所述易加工CPVC组合物，其特征在于，所述纳米二氧化硅的平均粒径为10～50nm。The easy-to-process CPVC composition according to claim 1, wherein the average particle size of the nano-silica is 10-50 nm.
- 根据权利要求1所述易加工CPVC组合物，其特征在于，所述CPVC组合物还含有颜料。The easy-to-process CPVC composition of claim 1, wherein the CPVC composition further contains a pigment.
- 根据权利要求1所述易加工CPVC组合物，其特征在于，所述钙锌稳定剂为环保型钙锌稳定剂。The easy-to-process CPVC composition according to claim 1, wherein the calcium-zinc stabilizer is an environment-friendly calcium-zinc stabilizer.
- 根据权利要求1～7任一项所述易加工CPVC组合物，其特征在于，包括如下步骤：The easy-to-process CPVC composition according to any one of claims 1 to 7, characterized in that it comprises the following steps:S1.按比例称量CPVC树脂粉、PVC树脂粉、PVC回收料、钙锌稳定剂、纳米二氧化硅、抗冲击改性剂、润滑剂、ACR加工助剂、金红石型钛白粉、颜料混合均匀；得到预混料；S1. Proportionally weigh CPVC resin powder, PVC resin powder, PVC recycled material, calcium zinc stabilizer, nano-silica, impact modifier, lubricant, ACR processing aid, rutile titanium dioxide, and pigment to mix evenly ; get a premix;S2.将步骤S1的预混料加入到挤出设备中挤出，即得CPVC组合物。S2. The premix of step S1 is added to the extrusion equipment for extrusion to obtain the CPVC composition.
- 根据权利要求8所述易加工CPVC组合物的制备方法，其特征在于，所述挤出机的加工温度为160～210℃。The method for preparing an easy-to-process CPVC composition according to claim 8, wherein the processing temperature of the extruder is 160-210°C.
- 权利要求1～7任一项所述易加工CPVC组合物在饮用水管材、消防管中的应用。Application of the easy-to-process CPVC composition described in any one of claims 1 to 7 in drinking water pipes and fire-fighting pipes.
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