CN112659700A - PP (polypropylene) plate with impact resistance and high flame retardance and preparation method thereof - Google Patents
PP (polypropylene) plate with impact resistance and high flame retardance and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an impact-resistant high-flame-retardant PP plate, which comprises a PP layer arranged in the middle and enhancement layers symmetrically arranged on two sides of the PP layer, wherein each enhancement layer comprises an ABS layer, a PTFE layer and a ceramic layer; the PP layer comprises the following raw materials: polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and a color master batch; the preparation method of the PP plate comprises the following steps: firstly, preparing a PP layer: firstly, weighing raw materials according to a ratio and stirring, secondly, conveying the stirred raw materials to an extruder, and thirdly, melting and molding the raw materials; secondly, preparing a PP plate: connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material. The preparation method of the PP sheet material with impact resistance and high flame retardance is simple and reasonable, and the operation flow is few; the prepared PP plate has good impact resistance and excellent flame retardance.
Description
Technical Field
The invention belongs to the technical field of PP (polypropylene) plates, and particularly relates to a PP plate with impact resistance and high flame retardance and a preparation method thereof.
Background
PP plates, also known as polypropylene plastic plates, are a semi-crystalline material. It is harder and has a higher melting point than PE material. The PP extruded sheet has the characteristics of light weight, uniform thickness, smooth and flat surface, good heat resistance, high mechanical strength, excellent chemical stability and electrical insulation, no toxicity and the like. The PP plate is widely applied to the production of fiber products such as clothes, felts and the like, medical instruments, chemical containers, conveying pipelines and the like. However, the existing PP plates have some problems, such as poor impact resistance, which causes damage to the plates during use and breakage in use, and poor flame retardance, which often cannot be used at high temperature, resulting in limitation of the application range of the PP plates.
Therefore, the above problems need to be solved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the PP sheet material with impact resistance and high flame retardance and the preparation method thereof, and the preparation method is simple and reasonable and has less operation flows; the prepared PP plate has good impact resistance, excellent flame retardant property and low production cost.
The technical scheme is as follows: in order to achieve the purpose, the invention provides a PP plate with impact resistance and high flame retardance, which comprises a PP layer arranged in the middle and enhancement layers symmetrically arranged on two sides of the PP layer, wherein each enhancement layer comprises an ABS layer, a PTFE layer and a ceramic layer; the PP layer comprises the following raw materials in parts by weight: 40-50 parts of polypropylene, 45-55 parts of copolymerized polypropylene, 8-10 parts of flame retardant, 2-4 parts of toughening agent, 0.1-0.3 part of antioxidant and 1-3 parts of color master batch.
Further, the flame retardant is composed of a phosphorus flame retardant, a nitrogen flame retardant and an inorganic flame retardant, and the weight ratio of the phosphorus flame retardant to the nitrogen flame retardant to the inorganic flame retardant is as follows: nitrogen-based flame retardant: inorganic flame retardant 2: 5: 3.
further, in the impact-resistant high-flame-retardancy PP sheet material, the phosphorus flame retardant is RDP.
Further, in the impact-resistant high-flame-retardant PP sheet material, the nitrogen flame retardant is melamine.
Further, in the impact-resistant high-flame-retardancy PP sheet material, the inorganic flame retardant is magnesium hydroxide.
Further, in the impact-resistant high-flame-retardant PP sheet material, the toughening agent is a POE toughening agent.
Further, in the above PP sheet with impact resistance and high flame retardancy, the antioxidant is an antioxidant prepared by mixing an antioxidant 1010 and an antioxidant 168, and a mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
further, in the above PP sheet with high impact resistance and flame retardancy, the RDP is resorcinol bis (diphenyl phosphate).
Further, the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 15-25 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
The technical scheme shows that the invention has the following beneficial effects:
the PP sheet material has the following advantages:
1. the impact resistance is good: according to the invention, the reinforced layers are respectively arranged on two sides of the PP layer and respectively consist of the ABS layer, the PTFE layer and the ceramic layer, wherein the ABS layer has excellent impact resistance, heat resistance and low-temperature resistance; the PTFE layer has excellent chemical stability, corrosion resistance and good ageing resistance; the ceramic layer has excellent oxidation resistance and wear resistance, and the impact resistance of the PP plate can be greatly improved by arranging the enhancement layer outside the PP layer; and POE toughening agent is added in the preparation process of the PP layer, so that the impact resistance of the PP layer is further enhanced.
2. The flame retardant property is excellent: in the preparation process of the PP layer, the flame retardant consisting of RDP, melamine and magnesium hydroxide according to a certain weight ratio is added, so that the flame retardant property of the PP plate is greatly improved; and the ABS layer in the reinforced layer also has excellent heat resistance, so that the performance of the PP plate is further enhanced.
The preparation method of the PP plate with impact resistance and high flame retardance is simple and reasonable, the operation flow is few, the production cost is low, the prepared PP plate is excellent in comprehensive performance, and the application range is wide.
Drawings
FIG. 1 is a schematic structural view of an impact-resistant and high-flame-retardant PP sheet according to the present invention;
in the figure: 1. a PP layer; 2. an enhancement layer; 21. an ABS layer; 22. a PTFE layer; 23. a ceramic layer.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
The impact-resistant high-flame-retardant PP plate shown in FIG. 1 comprises a PP layer 1 arranged in the middle and reinforcing layers 2 symmetrically arranged on two sides of the PP layer 1, wherein each reinforcing layer 2 comprises an ABS layer 21, a PTFE layer 22 and a ceramic layer 23, the PTFE layer 22 is connected with the PP layer 1 through the ABS layer 21, and the ceramic layer 23 is arranged on the outer side of the PTFE layer 22; the PP layer 1 comprises the following raw materials in parts by weight: 40 parts of polypropylene, 45 parts of co-polypropylene, 8 parts of flame retardant, 2 parts of POE toughening agent, 0.1 part of antioxidant and 1 part of color master batch.
The flame retardant consists of a phosphorus flame retardant RDP, a nitrogen flame retardant melamine and an inorganic flame retardant magnesium hydroxide, wherein the weight ratio of the RDP to the melamine to the magnesium hydroxide is RDP: melamine: magnesium hydroxide 2: 5: 3.
the antioxidant is prepared by mixing an antioxidant 1010 and an antioxidant 168, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 15 times;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
Wherein the heating temperature of the 6 basic charging barrels is set to 192-200 ℃, 196-208 ℃, 204-216 ℃, 213-220 ℃ and 213-220 ℃ in sequence.
Example 2
The impact-resistant high-flame-retardant PP plate shown in FIG. 1 comprises a PP layer 1 arranged in the middle and reinforcing layers 2 symmetrically arranged on two sides of the PP layer 1, wherein each reinforcing layer 2 comprises an ABS layer 21, a PTFE layer 22 and a ceramic layer 23, the PTFE layer 22 is connected with the PP layer 1 through the ABS layer 21, and the ceramic layer 23 is arranged on the outer side of the PTFE layer 22; the PP layer 1 comprises the following raw materials in parts by weight: 50 parts of polypropylene, 55 parts of co-polypropylene, 10 parts of flame retardant, 4 parts of POE toughening agent, 0.3 part of antioxidant and 3 parts of color master batch.
The flame retardant consists of a phosphorus flame retardant RDP, a nitrogen flame retardant melamine and an inorganic flame retardant magnesium hydroxide, wherein the weight ratio of the RDP to the melamine to the magnesium hydroxide is RDP: melamine: magnesium hydroxide 2: 5: 3.
the antioxidant is prepared by mixing an antioxidant 1010 and an antioxidant 168, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 25 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
Wherein the heating temperature of the 6 basic charging barrels is set to 192-200 ℃, 196-208 ℃, 204-216 ℃, 213-220 ℃ and 213-220 ℃ in sequence.
Example 3
The impact-resistant high-flame-retardant PP plate shown in FIG. 1 comprises a PP layer 1 arranged in the middle and reinforcing layers 2 symmetrically arranged on two sides of the PP layer 1, wherein each reinforcing layer 2 comprises an ABS layer 21, a PTFE layer 22 and a ceramic layer 23, the PTFE layer 22 is connected with the PP layer 1 through the ABS layer 21, and the ceramic layer 23 is arranged on the outer side of the PTFE layer 22; the PP layer 1 comprises the following raw materials in parts by weight: 45 parts of polypropylene, 50 parts of co-polypropylene, 9 parts of flame retardant, 3 parts of POE toughening agent, 0.2 part of antioxidant and 2 parts of color master batch.
The flame retardant consists of a phosphorus flame retardant RDP, a nitrogen flame retardant melamine and an inorganic flame retardant magnesium hydroxide, wherein the weight ratio of the RDP to the melamine to the magnesium hydroxide is RDP: melamine: magnesium hydroxide 2: 5: 3.
the antioxidant is prepared by mixing an antioxidant 1010 and an antioxidant 168, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 20 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
Wherein the heating temperature of the 6 basic charging barrels is set to 192-200 ℃, 196-208 ℃, 204-216 ℃, 213-220 ℃ and 213-220 ℃ in sequence.
Example 4
The impact-resistant high-flame-retardant PP plate shown in FIG. 1 comprises a PP layer 1 arranged in the middle and reinforcing layers 2 symmetrically arranged on two sides of the PP layer 1, wherein each reinforcing layer 2 comprises an ABS layer 21, a PTFE layer 22 and a ceramic layer 23, the PTFE layer 22 is connected with the PP layer 1 through the ABS layer 21, and the ceramic layer 23 is arranged on the outer side of the PTFE layer 22; the PP layer 1 comprises the following raw materials in parts by weight: 40 parts of polypropylene, 55 parts of co-polypropylene, 8 parts of flame retardant, 3 parts of POE toughening agent, 0.2 part of antioxidant and 3 parts of color master batch.
The flame retardant consists of a phosphorus flame retardant RDP, a nitrogen flame retardant melamine and an inorganic flame retardant magnesium hydroxide, wherein the weight ratio of the RDP to the melamine to the magnesium hydroxide is RDP: melamine: magnesium hydroxide 2: 5: 3.
the antioxidant is prepared by mixing an antioxidant 1010 and an antioxidant 168, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 15 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
Wherein the heating temperature of the 6 basic charging barrels is set to 192-200 ℃, 196-208 ℃, 204-216 ℃, 213-220 ℃ and 213-220 ℃ in sequence.
Comparative example 1
The PP sheet of this comparative example differs from the impact-resistant and high flame-retardant PP sheet described in example 1 in that it comprises only a PP layer.
The PP layer comprises the following raw materials in parts by weight: 40 parts of polypropylene, 45 parts of co-polypropylene, 8 parts of flame retardant, 2 parts of POE toughening agent, 0.1 part of antioxidant and 1 part of color master batch.
The flame retardant consists of a phosphorus flame retardant RDP, a nitrogen flame retardant melamine and an inorganic flame retardant magnesium hydroxide, wherein the weight ratio of the RDP to the melamine to the magnesium hydroxide is RDP: melamine: magnesium hydroxide 2: 5: 3.
the antioxidant is prepared by mixing an antioxidant 1010 and an antioxidant 168, wherein the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
the preparation method of the PP sheet material with impact resistance and high flame retardance comprises the following steps:
weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 15 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
wherein the heating temperature of the 6 basic charging barrels is set to 192-200 ℃, 196-208 ℃, 204-216 ℃, 213-220 ℃ and 213-220 ℃ in sequence.
Comparative example 2
The PP sheet of this comparative example differs from the impact-resistant high flame retardant PP sheet described in example 1 only in that the flame retardant in this comparative example is hexabromocyclododecane.
The preparation of PP sheet according to this comparative example was carried out as in example 1.
Performance detection
The PP sheets obtained in examples 1 to 4 and comparative examples 1 to 2 were tested for their properties in the following manner, and the results are shown in Table 1.
Notched impact strength: according to the method of GB/T1843-1996.
Oxygen index: according to the method of GB/T2406.
Flame retardancy: according to the UL-94 method.
Table 1: results of Performance testing
As can be seen from the table above, the PP sheet material provided by the invention has good impact resistance and excellent flame retardant property.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (9)
1. The PP plate with the impact resistance and the high flame retardance is characterized by comprising a PP layer (1) arranged in the middle and enhancement layers (2) symmetrically arranged on two sides of the PP layer (1), wherein each enhancement layer (2) comprises an ABS layer (21), a PTFE layer (22) and a ceramic layer (23), the PTFE layer (22) is connected with the PP layer (1) through the ABS layer (21), and the ceramic layer (23) is arranged on the outer side of the PTFE layer (22); the PP layer (1) comprises the following raw materials in parts by weight: 40-50 parts of polypropylene, 45-55 parts of copolymerized polypropylene, 8-10 parts of flame retardant, 2-4 parts of toughening agent, 0.1-0.3 part of antioxidant and 1-3 parts of color master batch.
2. The PP sheet material with impact resistance and high flame retardance as claimed in claim 1, wherein the flame retardant comprises a phosphorus flame retardant, a nitrogen flame retardant and an inorganic flame retardant, and the weight ratio of the phosphorus flame retardant to the nitrogen flame retardant to the inorganic flame retardant is as follows: nitrogen-based flame retardant: inorganic flame retardant 2: 5: 3.
3. the PP sheet material with impact resistance and high flame retardance as claimed in claim 2, wherein the phosphorus flame retardant is RDP.
4. The PP sheet material with impact resistance and high flame retardance as claimed in claim 2, wherein the nitrogen-based flame retardant is melamine.
5. The PP sheet material with impact resistance and high flame retardance according to claim 2, wherein the inorganic flame retardant is magnesium hydroxide.
6. The PP sheet material with impact resistance and high flame retardance as claimed in claim 1, wherein the toughening agent is POE toughening agent.
7. The PP sheet material with impact resistance and high flame retardance as claimed in claim 1, wherein the antioxidant is a mixture of an antioxidant 1010 and an antioxidant 168, and the mass ratio of the antioxidant 1010 to the antioxidant 168 is 1: 1.
8. the preparation method of the PP sheet material with impact resistance and high flame retardance as recited in claim 1, comprises the following steps:
step one, preparing a PP layer
Weighing polypropylene, co-polypropylene, a flame retardant, a toughening agent, an antioxidant and color master batch according to a ratio, and stirring in a stirring device for 15-25 min;
conveying the raw materials uniformly stirred in the step one to an extruder;
thirdly, heating the materials to 220 ℃ through 6 basic charging barrels of the extruder, enabling the raw materials to be in a molten state, conveying the raw materials into a mold, and molding the molten raw materials in the mold to obtain a PP layer;
step two, preparing the PP plate
Connecting the ABS layer on two sides of the PP layer through hot melting, connecting the PTFE layer on the outer side of the ABS layer through hot melting, and finally gluing the ceramic layer on the outer side of the PTFE layer to obtain the ceramic laminated material.
9. The method for preparing an impact-resistant and flame-retardant PP sheet according to claim 8, wherein the 6 base material barrels are heated at 192 to 200 ℃, 196 to 208 ℃, 204 to 216 ℃, 213 to 220 ℃, and 213 to 220 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416173.3A CN112659700A (en) | 2020-12-03 | 2020-12-03 | PP (polypropylene) plate with impact resistance and high flame retardance and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011416173.3A CN112659700A (en) | 2020-12-03 | 2020-12-03 | PP (polypropylene) plate with impact resistance and high flame retardance and preparation method thereof |
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| CN112659700A true CN112659700A (en) | 2021-04-16 |
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| CN202011416173.3A Pending CN112659700A (en) | 2020-12-03 | 2020-12-03 | PP (polypropylene) plate with impact resistance and high flame retardance and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810762A (en) * | 2016-12-28 | 2017-06-09 | 中山诗兰姆汽车零部件有限公司 | A kind of Halogen-free flame-retardant PP composite material and preparation method thereof |
| CN208855170U (en) * | 2018-09-22 | 2019-05-14 | 恒冠塑业有限公司 | A kind of novel high-strength PP plate |
| CN110791014A (en) * | 2019-10-19 | 2020-02-14 | 东莞市致森五金塑胶制品有限公司 | Flame-retardant PP (polypropylene) plate and preparation method thereof |
-
2020
- 2020-12-03 CN CN202011416173.3A patent/CN112659700A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810762A (en) * | 2016-12-28 | 2017-06-09 | 中山诗兰姆汽车零部件有限公司 | A kind of Halogen-free flame-retardant PP composite material and preparation method thereof |
| CN208855170U (en) * | 2018-09-22 | 2019-05-14 | 恒冠塑业有限公司 | A kind of novel high-strength PP plate |
| CN110791014A (en) * | 2019-10-19 | 2020-02-14 | 东莞市致森五金塑胶制品有限公司 | Flame-retardant PP (polypropylene) plate and preparation method thereof |
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