CN104479259A - High-impact-resistance PVC profile meeting high-speed extrusion requirement and preparing method thereof - Google Patents
High-impact-resistance PVC profile meeting high-speed extrusion requirement and preparing method thereof Download PDFInfo
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- CN104479259A CN104479259A CN201510030256.1A CN201510030256A CN104479259A CN 104479259 A CN104479259 A CN 104479259A CN 201510030256 A CN201510030256 A CN 201510030256A CN 104479259 A CN104479259 A CN 104479259A
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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
-
- 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
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—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
Abstract
The invention discloses a high-impact-resistance PVC profile meeting the high-speed extrusion requirement and a preparing method of the PVC profile. The PVC profile comprises 100 parts of PVC, 3.5 parts to 6 parts of heat stabilizers, 5 parts to 12 parts of titanium dioxide, 5 parts to 10 parts of impact-resistant modifiers, 0.5 part to 2 parts of processing auxiliaries, 5 parts to 12 parts of filling agents, 0.02 part to 2.0 parts of lubricating regulators and 0 part to 0.1 part of color matching agents. Compared with the prior art, the PVC profile prepared with the method is suitable for high-speed extrusion of a parallel double-screw extruder, low temperature impact resistance is excellent, the appearance quality of the profile is remarkably improved, and the surface is smooth and fine, composition does not include the heavy metal such as Ba, Cd and Pb, the PVC profile is free of poison and environmentally friendly and sulfide pollution cannot happen to the PVC profile easily; a processing range is wide and an existing CPE formula system does not need to be adjusted substantially.
Description
Technical field
The invention belongs to environmental protection high durable high-impact PVC profile, particularly a kind of high-impact PVC profile meeting high speed extrusion and preparation method thereof.
Background technology
Hard PVC resin refers to unplasticised PVC, belongs to hard brittle material, and its main drawback is that poor impact resistance, low temperature brittleness are large.Hard PVC resistance to impact shock is very low, is generally only 3-5KJ/m under normal temperature
2, low temperature impact performance is just poorer, and major cause is that it has high susceptibility to breach, and this is relevant with its molecular structure.Therefore hard PVC resin needs toughening modifying in addition to use, and to increase substantially the impact property of material, meets user demand.
Current domestic PVC profile formula mainly uses CPE as impact modifier, has the features such as the low and strong adaptability of use cost.CPE itself is in chain-like structure, and work in-process forms cubic network, and PE segment soft in molecular chain provides toughness; The segment that similar PVC is chlorinated, provides the consistency with PVC, and the performance of CPE modified PVC effect and the formational situation of network structure have much relations, and network-type impact modifier obtains the work range relative narrower of optimum physical mechanical property.
The material of a kind of shell-core structure of anti-impact ACR properties-correcting agent, kernel is the elastomerics of lightly crosslinked butyl acrylate, rubber like; Shell is methyl methacrylate, provides the excellent compatibility with PVC, and the low-temperature impact-resistant performance therefore generally using CPE to produce section bar as anti-impact modifier is poor.Different from the mechanism of action of CPE, ACR absorbs impact energy suffered by PVC by the elastomerics of stratum nucleare, therefore, the application of ACR is less by the impact of processing conditions, work range is wider than CPE, disperse more even, more effectively can promote low-temperature impact-resistant performance and the apparent mass of PVC plastic section bar relative to CPE.
But the system of existing use anti-impact ACR properties-correcting agent cannot reach the requirement of high speed extrusion.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of high-impact PVC profile meeting high speed extrusion and preparation method thereof, can on the existing use CPE parallel double-screw high speed extrusion equipment that is properties-correcting agent stably manufactured.
A kind of high-impact PVC profile meeting high speed extrusion provided by the invention, comprises the material of following weight part:
The described PVC polymerization degree is 1000, the SG-5 type PVC that can obtain for ethylene process or calcium carbide route.
Described thermo-stabilizer is environmental protection calcium-zinc composite stabilizing agent.
Described titanium dioxide is rutile-type.
Described impact modifier is anti-impact ACR properties-correcting agent.
Described processing aid is acrylic polymer.
Described weighting agent is light active calcium carbonate.
Described toning agent be pure aluminium silicate containing sulfur compound.
Described lubrication conditioning agent is high-density oxidized polyethlene wax.
A kind of preparation method meeting the high-impact PVC profile of high speed extrusion provided by the invention, comprises the following steps:
(1) PVC 100 parts, thermo-stabilizer 3.5-6 part, titanium dioxide 5-12 part, impact modifier 5-10 part, processing aid 0.5-2 part, weighting agent 5-12 part, lubrication conditioning agent 0.02-2.0 part, is taken, toning agent 0-0.1 part, input Hot mixer mixes, temperature is drained into after reaching 120 DEG C in cold mixing machine, coldly mix to 40-45 DEG C, after roots blower and reciprocating sieve remove foreign matter, enter storage deposit tank, homogenizing 24 hours, obtains PVC dry blend;
(2), PVC dry blend is added twin screw extruder hopper, utilize screw rod rotary presser mode, continuously the molding materials plastified is got into extrusion die from the machine barrel of forcing machine, melting material is shaped to the continuum similar with Oral incision by machine head port mould, is pulled out continuously by moulded products with towing mechanism from mould, carries out cooling and shaping simultaneously, overlay film, cutting, through packing after the assay was approved, warehouse-in.
Anti-impact ACR system compared with CPE anti-impact system, the problem that also existing is fast in processibility, moment of torsion is high, electric current is large, melt pressure is large.Convert anti-impact ACR formula to by CPE formula and there will be the problem being difficult to processing smoothly, the high-density oxidized polyethlene wax that the present invention uses: there is rate of extrusion raising, maintenance product surface high gloss.Not metal ion, prevents from separating out, postpones gathering of heat of friction, improve the characteristics such as thermostability at high temperature, and for extruding, injection moulding, prolongs pressure and plastic uptake, the industries such as blowing.Balance is compared to the inside and outside lubrication of PVC: add its oilness of oxidized polyethlene wax in filling a prescription be better than other lubricants at hard transparent, opaque PVC.Playing outer cunning is in the present invention that main having concurrently in part slides regulating effect.
Compared with prior art, PVC profile prepared by the present invention is applicable to parallel double-screw extruder high speed extrusion, and low-temperature impact performance is excellent, and section bar apparent mass is significantly improved, and smooth surface is fine and smooth; Not containing heavy metals such as Ba, Cd and Pb in composition, asepsis environment-protecting, and be not vulnerable to sulfide staining; Work range is wide, without the need to significantly adjusting existing CPE formula system technique.Solve and generally the problem such as cannot be applicable to existing CPE formula system equipment mould is steadily produced smoothly and technique adjustment amplitude is large, production stability is poor after replacing anti-impact ACR modified system (with the use of environmental protection one package stabilizer).
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Titanium dioxide model of the present invention is rutile-type, is produced by titanium white Science and Technology Ltd. of Du Pont.
Anti-impact ACR properties-correcting agent model of the present invention is KM355P, is produced by the Dow Chemical Company.
Toning agent model of the present invention is 463 type ultramarines, is produced or auxiliary agent manufacturer production of the same type by Renhe, Shandong Trade Co., Ltd..
Stabilizer of the present invention, is produced by Wuhu Hailuo New Materials Co., Ltd..
High-density oxidized polyethlene wax model of the present invention is AC316A, is produced by Honeywell Int Inc..
Bending elastic modulus of the present invention detects according to GB/T9341-2000 standard, and unit is MPa
Tensile yield strength detects according to GB/T13525-1992 standard, and unit is KJ/m2
Vicat softening temperature detects according to GB/T1633-2000 standard, and unit is DEG C.
Falling ball impact test at low temperature and principal mode material weldability list method by GB/T8814-2004 standard and detect, and detect the impact property of subzero 20 DEG C.
Simple beam impact strength detects according to ISO179:2000 standard, and unit is KJ/m2.
Bending elastic modulus: be under the environment of 23 ± 2 DEG C in temperature, be placed on the fixture of almighty test machine by section bar print, then applies certain external force by probe and makes it move down with constant speed, and when the deformation of print reaches 4mm, experiment stops.The numeral that computer shows is bending elastic modulus.Numeral is larger, shows that the rigidity of this section bar is better.
Tensile yield strength: be under the environment of 23 ± 2 DEG C in temperature, be fixed on by section bar print on the fixture of tension impact instrument, allows pendulum fall, until numeral when print is thrust, Apparatus for Impacting at low-temp shown with constant energy.Numeral is larger, shows that the non-notch toughness of this section bar is better.
Vicat softening temperature: test according to B50 method in the regulation of GB/T1633-2000.The statical load G=50N that sample bears ± 1N, reading numerical values.
Falling ball impact test at low temperature: sample to be placed under-10 ± 2 DEG C of conditions after 1h, be under the testing circumstance of 23 ± 2 DEG C in temperature, the impact visible surface of test sample is upwards put on a support, central position in 10s between impact specimen two brace rod, record section bar visible surface produce break, the sample number of crackle or separation.
Test two ends are placed on movable supporting seat by weldability: be under the experimental situation of 23 ± 2 DEG C in temperature, and corner welding or T connector apply pressure, until fracture, and record numerical value.
Simple beam impact strength: be under the environment of 23 ± 2 DEG C in temperature, the section bar print using new calcium zinc composite stabilizer to produce is fixed on the fixture of Charpy Impact instrument, white hammer is allowed to fall, until numeral when print is thrust, Apparatus for Impacting at low-temp shown with constant energy.Numeral is larger, shows that the jagged toughness of this section bar is better.
" part " in the present embodiment refers to " weight part ".
Embodiment 1
Meet a high-impact PVC profile for high speed extrusion, comprise the material of following weight part:
PVC 100 parts, titanium dioxide 8 parts, light calcium carbonate 10 parts, anti-impact ACR properties-correcting agent 7 parts, ACR processing aid acrylic polymer 1 part, Environment-friendlycalcium calcium zinc stabilizer 3.7 parts, high-density oxidized polyethlene wax 0.05 part, 0.03 part, ultramarine.
Meet a preparation method for the high-impact PVC profile of high speed extrusion, comprise the following steps:
(1), by automatic batching system, required material is mixed by putting in Hot mixer after above-mentioned weight part automatic gauge, heat sneaks out in journey the moisture fully removed through hot mixing tide in compound, material is drained into be mixed into 120 DEG C in Hot mixer after in cold mixing machine, cold mixing enters hold-up vessel to 40 DEG C after roots blower and reciprocating sieve remove foreign matter, and homogenizing 24 hours, obtain PVC dry blend;
(2), PVC dry blend is added twin screw extruder hopper, utilize screw rod rotary presser mode, continuously the molding materials plastified is got into extrusion die from the machine barrel of forcing machine, melting material is shaped to the continuum similar with Oral incision by machine head port mould, is pulled out continuously by moulded products with towing mechanism from mould, carries out cooling and shaping simultaneously, overlay film, cutting, through packing after the assay was approved, warehouse-in.
Embodiment 2
Meet a high-impact PVC profile for high speed extrusion, comprise the material of following weight part:
PVC 100 parts, titanium dioxide 8 parts, light calcium carbonate 10 parts, anti-impact ACR properties-correcting agent 6 parts, ACR processing aid acrylic polymer 1 part, Environment-friendlycalcium calcium zinc stabilizer 3.7 parts, high-density oxidized polyethlene wax 0.1 part, 0.03 part, ultramarine.
Meet a preparation method for the high-impact PVC profile of high speed extrusion, comprise the following steps:
(1), by automatic batching system, required material is mixed by putting in Hot mixer after above-mentioned formula rate automatic gauge, heat sneaks out in journey the moisture fully removed through hot mixing tide in compound, material is drained into be mixed into 120 DEG C in Hot mixer after in cold mixing machine, cold mixing enters hold-up vessel to 45 DEG C after roots blower and reciprocating sieve remove foreign matter, and homogenizing 24 hours, obtain PVC dry blend.
(2), PVC dry blend is added twin screw extruder hopper, utilize screw rod rotary presser mode, continuously the molding materials plastified is got into extrusion die from the machine barrel of forcing machine, melting material is shaped to the continuum similar with Oral incision by machine head port mould, is pulled out continuously by moulded products with towing mechanism from mould, carries out cooling and shaping simultaneously, overlay film, cutting, through packing after the assay was approved, warehouse-in.
Embodiment 1,2 and CPECPE formula system produce expressing technique in table 1:
Table 1
| Expressing technique | Embodiment 1 | Embodiment 2 | CPE+ lead salt |
| Extruder temperature (DEG C) | 125 | 125 | 125 |
| Cylinder district's temperature (DEG C) | 165 | 166 | 158 |
| Mould district temperature (DEG C) | 195 | 195 | 193 |
| Screw speed (rpm) | 15.8 | 15.8 | 15.8 |
| Feeding (l/rpm) | 32.2 | 31.2 | 30.7 |
| Traction (m/min) | 3.23 | 3.19 | 3.25 |
| Load (%) | 54 | 54 | 52 |
| Molten temperature (DEG C) | 200 | 200 | 198 |
| Fusion pressure (bar) | 230 | 230 | 224 |
| Back pressure (KN) | 135 | 135 | 135 |
As shown in table 1, embodiment 1,2 online production technique and online CPE formula system are substantially suitable, and without the need to carrying out significantly technique adjustment, production run process stabilization, production capacity plays substantially suitable, can meet parallel double-screw high speed extrusion.
The technical indicator of the PVC profile that embodiment 1,2 and existing CPE formula system are produced is as shown in table 2:
Table 2
As shown in table 2: standard is GB/T8814-2004 " door, window not plasticized polyvinyl chloride (PVC-U) section bar " specified standards.Embodiment 1,2 all can realize the present invention, and compared with online CPE formula system, low-temperature impact-resistant performance and section bar apparent mass rise to some extent, and all other performance index are substantially suitable.
Claims (10)
1. meet a high-impact PVC profile for high speed extrusion, it is characterized in that, comprise the material of following weight part:
2. the high-impact PVC profile meeting high speed extrusion according to claim 1, is characterized in that, described lubrication conditioning agent is high-density oxidized polyethlene wax.
3. the high-impact PVC profile meeting high speed extrusion according to claim 2, is characterized in that, described impact modifier is anti-impact ACR properties-correcting agent.
4. the high-impact PVC profile meeting high speed extrusion according to claim 3, is characterized in that, described thermo-stabilizer is environmental protection calcium-zinc composite stabilizing agent.
5. the high-impact PVC profile meeting high speed extrusion according to claim 3 or 4, is characterized in that, described titanium dioxide is rutile-type.
6. the high-impact PVC profile meeting high speed extrusion according to claim 5, is characterized in that, described processing aid is acrylic polymer.
7. the high-impact PVC profile meeting high speed extrusion according to claim 6, is characterized in that, described weighting agent is light active calcium carbonate.
8. the high-impact PVC profile meeting high speed extrusion according to claim 6 or 7, is characterized in that, described toning agent be pure aluminium silicate containing sulfur compound.
9. the high-impact PVC profile meeting high speed extrusion according to claim 8, is characterized in that, the described PVC polymerization degree is 1000.
10. the preparation method meeting the high-impact PVC profile of high speed extrusion according to claim 1, comprises the following steps:
(1) PVC 100 parts, thermo-stabilizer 3.5-6 part, titanium dioxide 5-12 part, impact modifier 5-10 part, processing aid 0.5-2 part, weighting agent 5-12 part, lubrication conditioning agent 0.02-2.0 part, is taken, toning agent 0-0.1 part, input Hot mixer mixes, temperature is drained into after reaching 120 DEG C in cold mixing machine, coldly mix to 40-45 DEG C, after roots blower and reciprocating sieve remove foreign matter, enter storage deposit tank, homogenizing 24 hours, obtains PVC dry blend;
(2), PVC dry blend is added twin screw extruder hopper, utilize screw rod rotary presser mode, continuously the molding materials plastified is got into extrusion die from the machine barrel of forcing machine, melting material is shaped to the continuum similar with Oral incision by machine head port mould, is pulled out continuously by moulded products with towing mechanism from mould, carries out cooling and shaping simultaneously, overlay film, cutting, through packing after the assay was approved, warehouse-in.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002973A (en) * | 2015-07-06 | 2015-10-28 | 安徽理工大学 | Urban rainwater pipeline system capable of effectively supplementing underground water |
| CN106554579A (en) * | 2015-09-25 | 2017-04-05 | 上海凯波特种电缆料厂有限公司 | A kind of PVC Insulation Materials and preparation method thereof of the automobile electric wire suitable for high speed extrusion |
| CN107459743A (en) * | 2017-09-18 | 2017-12-12 | 广州宏信塑胶工业有限公司 | High resiliency environment-protective polychloroethylene material composition and its preparation method and application |
| CN107522979A (en) * | 2017-09-27 | 2017-12-29 | 苏州富通高新材料科技股份有限公司 | A kind of outdoor use section bar and its processing technology |
| CN107603065A (en) * | 2017-09-27 | 2018-01-19 | 苏州富通高新材料科技股份有限公司 | A kind of section bar and its preparation technology for guard rail |
| CN107652575A (en) * | 2017-09-27 | 2018-02-02 | 苏州富通高新材料科技股份有限公司 | A kind of section bar and its preparation technology for landscape flower box |
| CN109503999A (en) * | 2018-12-05 | 2019-03-22 | 芜湖海螺型材科技股份有限公司 | A kind of chlorovinyl flame retardant section bar and preparation method thereof |
| CN112961445A (en) * | 2021-03-02 | 2021-06-15 | 广东联塑科技实业有限公司 | High-gloss polyvinyl chloride resin composition and preparation method and application thereof |
| CN113930030A (en) * | 2021-11-01 | 2022-01-14 | 江苏博诚节能玻璃有限公司 | Warm frame section bar for shutter and manufacturing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002973A (en) * | 2015-07-06 | 2015-10-28 | 安徽理工大学 | Urban rainwater pipeline system capable of effectively supplementing underground water |
| CN106554579A (en) * | 2015-09-25 | 2017-04-05 | 上海凯波特种电缆料厂有限公司 | A kind of PVC Insulation Materials and preparation method thereof of the automobile electric wire suitable for high speed extrusion |
| CN107459743A (en) * | 2017-09-18 | 2017-12-12 | 广州宏信塑胶工业有限公司 | High resiliency environment-protective polychloroethylene material composition and its preparation method and application |
| CN107522979A (en) * | 2017-09-27 | 2017-12-29 | 苏州富通高新材料科技股份有限公司 | A kind of outdoor use section bar and its processing technology |
| CN107603065A (en) * | 2017-09-27 | 2018-01-19 | 苏州富通高新材料科技股份有限公司 | A kind of section bar and its preparation technology for guard rail |
| CN107652575A (en) * | 2017-09-27 | 2018-02-02 | 苏州富通高新材料科技股份有限公司 | A kind of section bar and its preparation technology for landscape flower box |
| CN109503999A (en) * | 2018-12-05 | 2019-03-22 | 芜湖海螺型材科技股份有限公司 | A kind of chlorovinyl flame retardant section bar and preparation method thereof |
| CN112961445A (en) * | 2021-03-02 | 2021-06-15 | 广东联塑科技实业有限公司 | High-gloss polyvinyl chloride resin composition and preparation method and application thereof |
| CN113930030A (en) * | 2021-11-01 | 2022-01-14 | 江苏博诚节能玻璃有限公司 | Warm frame section bar for shutter and manufacturing method thereof |
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