CN103265782A - PMMA/MBS surface layer co-extrusion material and preparation method thereof - Google Patents
PMMA/MBS surface layer co-extrusion material and preparation method thereof Download PDFInfo
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- CN103265782A CN103265782A CN2013101616995A CN201310161699A CN103265782A CN 103265782 A CN103265782 A CN 103265782A CN 2013101616995 A CN2013101616995 A CN 2013101616995A CN 201310161699 A CN201310161699 A CN 201310161699A CN 103265782 A CN103265782 A CN 103265782A
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C2948/92704—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a PMMA/MBS surface layer co-extrusion material and a preparation method thereof, wherein using polymethyl methacrylate and polymethyl methacrylate-butadiene-styrol copolymer as main body materials, the PMMA/MBS surface layer co-extrusion material are prepared by through a double-stage double screw extruder. Compared with a traditional PMMA/ASA surface layer co-extrusion material, the stretching and impact performances of the PMMA/MBS surface layer co-extrusion material are greatly raised. Because the price of a main raw material of polymethyl methacrylate-butadiene-styrol copolymer is low, the cost of the co-extrusion material is greatly reduced. Simultaneously, a preparation technology is simple, and co-extrusion material is suitable for large scale production and usage.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly a kind of PMMA/MBS top layer co-extrusion material and preparation method thereof.
Background technology
Co-extrusion technology is applied to the PVC building material industry probably the history in more than 10 year.As far back as the 90's ends just the someone concept of color coextrusion door and window is proposed, but up to 2000 formal market-oriented matured product is arranged.The PVC plastic door-window is popularized widely at home and is used, but owing to contain unsettled chlorine element in the PVC molecular structure, causes phenomenon such as jaundice rubescent distortion etc. easily being subjected to solar light irradiation.In order to address this problem, at present the method that adopts usually be carry out on PVC section bar surface co-extrusion one deck high gloss, good weatherability, with the PVC consistency is good, resistance to impact shock is big resin or modified plastics.The composite co-extruding technology can comprehensive multiple material function, realize the integrated of plastic-steel door and window performance, as PMMA/ PVC co-extrusion door and window, just have excellent weather resistance, ornamental strong PMMA co-extrusion material and excellent mechanical, PVC material composite co-extruding that price is lower, make every excellent mechanical and have than high-weatherability and ornamental colored plastic-steel door and window.Maturation and market have also successively occurred such as a series of co-extrusion products such as synthetic resins watt, exterior wall composite co-extruding link plate and co-extrusion guardrails materials for construction personalization of product and diversified pursuit gradually along with this technology.
Conventional P VC section bar top layer co-extrusion material all adopts the PMMA/ASA component type, such co-extrusion material selects for use polymethylmethacrylate (PMMA) and vinyl cyanide-vinylbenzene-acrylate terpolymer (ASA) as material of main part, add other processing aid, make through double-screw extruding pelletizing.Because ASA resin price costliness causes PMMA/ASA component type top layer co-extrusion material cost higher.Therefore, it is lower to demand researching and developing a kind of cost urgently, and performance can satisfy standard-required again, can substitute the material of PMMA/ASA co-extrusion material.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of PMMA/MBS top layer co-extrusion material and preparation method thereof is provided.
The technical solution used in the present invention is:
A kind of PMMA/MBS top layer co-extrusion material, made by the raw material of following parts by weight:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
0～20 part of weighting agent,
0.5～3.0 part of lubricant,
0.2～2.0 part in oxidation inhibitor,
0.3～2.0 part of UV light absorber.
Preferably, made by the raw material of following parts by weight:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
5～10 parts of weighting agents,
0.5～1.0 part of lubricant,
0.3～0.8 part in oxidation inhibitor,
0.3～0.8 part of UV light absorber.
Preferably, the melting index of polymethylmethacrylate is 6～12g/10min, and cantilever beam impact strength is 24～30J/m.
Preferably, the butadiene content of polymethylmethacrylate-butadiene-styrene is 18～32wt%.
Preferably, weighting agent is at least a in light calcium carbonate, water-ground limestone, the talcum powder.
Preferably, lubricant is at least a in stearic acid, Zinic stearas, calcium stearate, the polyethylene wax.
Preferably, oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; UV light absorber is Octabenzone.
The preparation method of a kind of PMMA/MBS top layer co-extrusion material, its step is as follows:
1) polymethylmethacrylate is ground to 50～300 orders, then with other raw material stirring mixings;
2) material of mixing is put into pair loading hopper of rank twin screw extruder, behind the first rank twin screw shear melting, entered in the single screw rod in second rank, be subjected to single screw rod shearing, extrude, granulation, oven dry obtains PMMA/MBS component type top layer co-extrusion material;
Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃;
Wherein, as mentioned above raw materials used.
Preferably, in the step 1), stirring velocity is 100～500rpm.
The invention has the beneficial effects as follows:
PMMA/MBS component-type of the present invention top layer co-extrusion material is compared with traditional PMMA/ASA top layer co-extrusion material, its stretching, impact property all are greatly improved, and because the price of main raw material MBS is more cheap, the cost of co-extrusion material of the present invention is significantly reduced, preparation technology is simple simultaneously, is beneficial to use of large-scale production.
Embodiment
A kind of PMMA/MBS top layer co-extrusion material, made by the raw material of following parts by weight:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
0～20 part of weighting agent,
0.5～3.0 part of lubricant,
0.2～2.0 part in oxidation inhibitor,
0.3～2.0 part of UV light absorber.
Preferably, made by the raw material of following parts by weight:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
5～10 parts of weighting agents,
0.5～1.0 part of lubricant,
0.3～0.8 part in oxidation inhibitor,
0.3～0.8 part of UV light absorber.
Preferably, the melting index of polymethylmethacrylate is 6～12g/10min, and cantilever beam impact strength is 24～30J/m.
Preferably, the butadiene content of polymethylmethacrylate-butadiene-styrene is 18～32wt%.
Preferably, weighting agent is at least a in light calcium carbonate, water-ground limestone, the talcum powder.Preferably, the median size of used weighting agent light calcium carbonate is 1.25～6.5 μ m, and the median size of water-ground limestone is 1.25～6.5 μ m, and talcous median size is 1.25～6.5 μ m.
Preferably, lubricant is at least a in stearic acid, Zinic stearas, calcium stearate, the polyethylene wax; The fusing point of polyethylene wax is preferably 103～108 ℃.
Preferably, oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; UV light absorber is Octabenzone.
Certainly, as required, those skilled in the art also can add other auxiliary agents in this co-extrusion material, as pigment, stablizer, anti-wear agent, toughner etc.
The preparation method of a kind of PMMA/MBS top layer co-extrusion material, its step is as follows:
1) polymethylmethacrylate is ground to 50～300 orders, then with other raw material stirring mixings;
2) material of mixing is put into pair loading hopper of rank twin screw extruder, behind the first rank twin screw shear melting, entered in the single screw rod in second rank, be subjected to single screw rod shearing, extrude, granulation, oven dry obtains PMMA/MBS component type top layer co-extrusion material;
Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃;
Wherein, as mentioned above raw materials used.
Preferably, in the step 1), stirring velocity is 100～500rpm.
Be further described in detail below in conjunction with the present invention of embodiment, but be not limited to this.
In following examples, raw materials usedly be commercially available industrial goods.Unless otherwise noted, the following stated umber is weight part.
Embodiment
Co-extrusion material 1# is made by the raw material of following parts by weight:
60 parts of PMMA,
35 parts of MBS,
7.0 parts of light calcium carbonates,
0.5 part of polyethylene wax,
0.5 part in oxidation inhibitor,
0.4 part of UV light absorber,
0.4 part of pigment.
Co-extrusion material 2# is made by the raw material of following parts by weight:
65 parts of PMMA,
30 parts of MBS,
5.0 parts of water-ground limestones,
0.6 part of stearic acid,
0.8 part in oxidation inhibitor,
0.8 part of UV light absorber,
0.4 part of pigment.
Co-extrusion material 3# is made by the raw material of following parts by weight:
70 parts of PMMA,
25 parts of MBS,
3.0 parts of talcum powder,
0.5 part of Zinic stearas,
0.2 part in oxidation inhibitor,
0.4 part of UV light absorber,
0.4 part of pigment.
Co-extrusion material 4# is made by the raw material of following parts by weight:
75 parts of PMMA,
20 parts of MBS,
0.3 part of Zinic stearas,
0.3 part of polyethylene wax,
0.2 part in oxidation inhibitor,
0.4 part of UV light absorber,
0.4 part of pigment.
Co-extrusion material 5# is made by the raw material of following parts by weight:
40 parts of PMMA,
50 parts of MBS,
15 parts of water-ground limestones,
1.0 parts of calcium stearates,
0.6 part in oxidation inhibitor,
1.0 parts of UV light absorber,
0.4 part of pigment.
Co-extrusion material 6# is made by the raw material of following parts by weight:
50 parts of PMMA,
40 parts of MBS,
10 parts of water-ground limestones,
1 part of polyethylene wax,
0.4 part in oxidation inhibitor,
0.8 part of UV light absorber,
0.4 part of pigment.
Co-extrusion material 7# is made by the raw material of following parts by weight:
80 parts of PMMA,
20 parts of MBS,
0.6 part of stearic acid,
2.0 parts in oxidation inhibitor,
2.0 parts of UV light absorber,
0.4 part of pigment.
More than the melting index of used polymethylmethacrylate (PMMA) be 6～12g/10min, cantilever beam impact strength is 24～30J/m; The butadiene content of used polymethylmethacrylate-butadiene-styrene (MBS) is 18～32wt%; The fusing point of used polyethylene wax is 103～108 ℃; Used oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, and UV light absorber is Octabenzone.
The preparation method:
1) to be ground to 50～300 purposes tiny sand-like for the PMMA in will filling a prescription, and uses homogenizer then, with the speed of 100～500rpm with itself and other raw material stirring mixing;
2) material of mixing is put into pair loading hopper of rank twin screw extruder, behind the first rank twin screw shear melting, enter in the single screw rod in second rank, be subjected to single screw rod shearing, extrusion neck ring mold, through tie rod, water cooling excessively, pelletizing, oven dry, make PMMA/MBS component type top layer co-extrusion material 1#～7# respectively;
Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃.
Comparative example 1
Prescription is with co-extrusion material 3.
Preparation method: directly use homogenizer with the speed stirring and evenly mixing of 100～500rpm with other raw material PMMA, use pair rank twin screw granulations then, obtain co-extrusion material a.Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃.
Comparative example 2
Preparation method: with 70 parts of PMMA, 25 parts of ASA, 3.0 parts in calcium carbonate, outer lubricated 0.5 part, interior lubricated 0.5 part, 0.2 part in oxidation inhibitor, 0.4 part of UV light absorber, with the speed stirring and evenly mixing of 100～500rpm, use two rank twin screw granulations then in 0.4 part of adding homogenizer of pigment, get co-extrusion material b.Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃.
Co-extrusion material 1～7#, co-extrusion material a, co-extrusion material b are carried out performance test, the results are shown in Table 1.
Table 1 co-extrusion material The performance test results
As can be seen from Table 1, compare with the PMMA/ASA top layer co-extrusion material in the comparative example 2 with PMMA/MBS component-type of the present invention top layer co-extrusion material, performance is greatly improved.And because the MBS price is more cheap than ASA, so cost of the present invention significantly reduces.
Above-mentioned making method and prescription just illustrate technical thought of the present invention and characteristics; its objective is and allow the personage that is familiar with this technology understand the content of invention and implement; the equivalence done of with good grounds spirit of the present invention change, all should be encompassed within protection scope of the present invention.
Claims (9)
1. PMMA/MBS top layer co-extrusion material, made by the raw material of following parts by weight:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
0～20 part of weighting agent,
0.5～3.0 part of lubricant,
0.2～2.0 part in oxidation inhibitor,
0.3～2.0 part of UV light absorber.
2. PMMA/MBS according to claim 1 top layer co-extrusion material, it is characterized in that: the raw material by following parts by weight is made:
40～80 parts of polymethylmethacrylates,
20～50 parts of polymethylmethacrylate-butadiene-styrenes,
5～10 parts of weighting agents,
0.5～1.0 part of lubricant,
0.3～0.8 part in oxidation inhibitor,
0.3～0.8 part of UV light absorber.
3. PMMA/MBS according to claim 1 and 2 top layer co-extrusion material, it is characterized in that: the melting index of polymethylmethacrylate is 6～12g/10min, cantilever beam impact strength is 24～30J/m.
4. PMMA/MBS according to claim 1 and 2 top layer co-extrusion material, it is characterized in that: the butadiene content of polymethylmethacrylate-butadiene-styrene is 18～32wt%.
5. PMMA/MBS according to claim 1 and 2 top layer co-extrusion material is characterized in that: weighting agent is at least a in light calcium carbonate, water-ground limestone, the talcum powder.
6. PMMA/MBS according to claim 1 and 2 top layer co-extrusion material is characterized in that: lubricant is at least a in stearic acid, Zinic stearas, calcium stearate, the polyethylene wax.
7. PMMA/MBS according to claim 1 and 2 top layer co-extrusion material, it is characterized in that: oxidation inhibitor is four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; UV light absorber is Octabenzone.
8. the preparation method of a PMMA/MBS top layer co-extrusion material, its step is as follows:
Step 1) is ground to 50～300 orders with polymethylmethacrylate, then with other raw material stirring mixings;
Step 2) material of mixing is put into pair loading hopper of rank twin screw extruder, behind the first rank twin screw shear melting, entered in the single screw rod in second rank, be subjected to single screw rod shearing, extrude, granulation, oven dry obtains PMMA/MBS component type top layer co-extrusion material;
Wherein, temperature arranges as follows: the first rank twin screw, one district is 170～180 ℃, 185～200 ℃ of two district's temperature, 170～180 ℃ of three district's temperature, and the single extruder temperature in second rank is 195～210 ℃;
Wherein, raw materials used as described in any one of the claim 1～7.
9. preparation method according to claim 8, it is characterized in that: in the step 1), stirring velocity is 100～500rpm.
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| CN106751301A (en) * | 2016-11-23 | 2017-05-31 | 芜湖创科新材料科技有限公司 | A kind of materials for construction transparent co-extrusion material of extra-weather-proof shock resistance type and preparation method |
| CN107553858A (en) * | 2017-08-31 | 2018-01-09 | 苏州立维材料技术有限公司 | A kind of preparation method for the feature PMMA sheet materials that light guide plate is prepared suitable for the high-rate laser method of layouting |
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