Irradiation crosslinking type polyketone material and preparation method thereof

Abstract

The invention relates to the field of polyketone materials, and particularly discloses an irradiation crosslinking type polyketone material and a preparation method thereof. The irradiation crosslinking type polyketone material comprises the following raw materials in parts by mass: 40-80 parts of polyketone resin, 0-50 parts of a reinforcing material, 0-30 parts of a flame retardant, 0.5-10 parts of a crosslinking agent, 0-1 part of an antioxidant, 0-0.5 part of a coupling agent and 0-1 part of a lubricant. And the cross-linking agent is selected from at least one of triallyl isocyanurate and trimethylallyl isocyanurate. The irradiation crosslinking type polyketone material has the advantages of good high temperature resistance and high mechanical strength.

Description

Technical Field

[0001] The present application relates to the field of polyketone materials, and more specifically, to a radiation cross-linked polyketone material and a preparation method thereof. Background Art

[0002] Polyketone is a new type of polymer material, which is polymerized from carbon monoxide, ethylene and propylene. It has high impact resistance, chemical resistance, wear resistance and high barrier properties, as well as good hydrolysis resistance, low dielectric and harmlessness to human body. The poor high temperature resistance and low mechanical strength of polyketone resin limit the application scope of polyketone resin.

[0003] Radiation cross-linking technology is a method of using high-energy radiation sources such as electron beams or x-rays to treat materials to form new cross-linked structures to improve material properties. However, there are relatively few studies and applications on radiation cross-linking of polyketone resin materials.

[0004] In view of the above-mentioned related technologies, the present application discloses a radiation cross-linked polyketone material, which has better cross-linking effect, high flame retardant properties and mechanical strength, and provides a new idea for the improvement research of polyketone materials. Summary of the invention

[0005] In order to improve the high temperature resistance of polyketone materials, the present application provides a radiation cross-linked polyketone material and a preparation method thereof.

[0006] In a first aspect, the present application provides a radiation cross-linked polyketone material, which adopts the following technical solution:

[0007] A radiation cross-linked polyketone material, comprising the following raw materials in parts by weight:

[0008] 40-80 parts of polyketone resin, 0-50 parts of reinforcing material, 0-30 parts of flame retardant, 0.5-10 parts of cross-linking agent, 0-1 parts of antioxidant, 0-0.5 parts of coupling agent, 0-1 parts of lubricant;

[0009] The cross-linking agent is selected from at least one of triallyl isocyanurate and trimethallyl isocyanurate.

[0010] By adopting the above technical scheme and adding a cross-linking agent, the polyketone material has radiation cross-linking performance, and can be cross-linked and cured by radiation cross-linking to cross-link and cure the linear long-chain polyketone resin into a mesh material, which greatly improves the high temperature stability, dimensional stability and chemical resistance of the polyketone material. At the same time, the organic mesh structure formed after the cross-linking of the polyketone resin can entangle the components, which is beneficial to improving the mechanical properties of the polyketone material; by adding a flame retardant, the high temperature resistance and flame retardant properties of the polyketone material are further improved; by adding a reinforcing material, the mechanical strength of the polyketone material is further improved; by adding additives such as antioxidants and coupling agents, the use performance of the polyketone material can be improved, and it is beneficial to reduce the cross-linking loss generated during the cross-linking process, so as to ensure that the polyketone material has more stable high temperature resistance and mechanical properties.

[0011] Preferably, the radiation cross-linked polyketone material comprises the following raw materials in parts by mass:

[0012] 40-70 parts of polyketone resin, 20-50 parts of reinforcing material, 10-30 parts of flame retardant, 2-6 parts of cross-linking agent, 0.1-1 parts of antioxidant, 0.1-0.5 parts of coupling agent, and 0.1-1 parts of lubricant.

[0013] Preferably, the cross-linking agent is triallyl isocyanurate and trimethallyl isocyanurate in a mass ratio of 1:(2-4).

[0014] Preferably, the cross-linking agent is triallyl isocyanurate and trimethallyl isocyanurate in a mass ratio of 1:3.

[0015] By adopting the above technical scheme, the inventors creatively discovered that by compounding triallyl isocyanurate and trimethylallyl isocyanurate as a cross-linking agent and controlling the ratio of the two and the total amount of the cross-linking agent added, a better cross-linking effect can be achieved, so that the polyketone material can obtain better high temperature stability, dimensional stability and mechanical properties.

[0016] Preferably, the reinforcing material is selected from one or more of glass fiber, calcium sulfate whisker and calcium carbonate whisker.

[0017] Preferably, the glass fiber is alkali-free chopped glass fiber, and the glass fiber has a diameter of 7-15 μm and a length of 3-5 mm.

[0018] Preferably, the calcium carbonate whisker has a diameter of 1-10 μm, a length of 10-200 μm, and an aspect ratio of 5-50.

[0019] Preferably, the lubricant is at least one of calcium stearate, pentaerythritol stearate and silicone powder.

[0020] Preferably, the antioxidant includes a primary antioxidant and an auxiliary antioxidant, the primary antioxidant is selected from at least one of antioxidant 1098, antioxidant 1010, antioxidant 1076, and antioxidant 702; the auxiliary antioxidant is selected from at least one of antioxidant 168 and antioxidant 9228.

[0021] Preferably, the flame retardant is selected from one or more of brominated polystyrene, melamine polyphosphate, and antimony trioxide.

[0022] Preferably, the coupling agent is a silane coupling agent.

[0023] Preferably, the silane coupling agent is selected from at least one of KH550 and KH560.

[0024] Preferably, the polyketone resin is selected from at least one of Hyosung M330A, M630A, M730A and M930A.

[0025] Preferably, the radiation cross-linked polyketone material can be cured by radiation cross-linking, the electron beam energy of the radiation cross-linking is 0.5-10 MeV, the radiation dose is 100-300 kGy, and the dose rate is 15000-20000 kGy / h.

[0026] In a second aspect, the present application provides a method for preparing a radiation cross-linked polyketone material, using the following technical solution:

[0027] A method for preparing a radiation cross-linked polyketone material comprises the following steps:

[0028] According to the proportion, polyketone resin, crosslinking agent, antioxidant, coupling agent and lubricant are mixed and added into a twin-screw extruder by main feeding; reinforcing material and flame retardant are added thereto by side feeding, and after melt extrusion, cooling, pulling and pelletizing, radiation crosslinked polyketone material is obtained.

[0029] Preferably, the temperature of the extrusion step is 190-200° C. and the rotation speed is 300-400 rpm.

[0030] In summary, this application has the following beneficial effects:

[0031] 1. The present application adds at least one of triallyl isocyanurate and trimethallyl isocyanurate as a cross-linking agent, so that the polyketone material can be irradiated and cross-linked to form a three-dimensional network structure, which greatly improves the flame retardant properties and mechanical strength of the polyketone material, and gives the polyketone material better dimensional stability and chemical resistance, thereby expanding the application range of the polyketone material and enabling it to be used in high temperature resistant scenarios.

[0032] 2. In the present application, by limiting the mass ratio of triallyl isocyanurate and trimethallyl isocyanurate, the effect is further improved, and the flame retardant properties and mechanical properties of the polyketone material are further improved. DETAILED DESCRIPTION

[0033] To further help understand the technical solution of the present invention, the technical solution of the present invention is described in more detail below by providing several specific implementation examples. All of these described embodiments are only partial embodiments of the present invention, not all of them.

[0034] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments; and the reaction devices, monomer compounds, etc. involved in the following embodiments are all commercially available. Specifically, the model of polyketone resin is Hyosung M330A of South Korea; the model of triallyl isocyanurate is FARIDA TAIC-S of Fang Ruida; the model of trimethylallyl isocyanurate is FARIDA H-2 of Fang Ruida; triallyl cyanurate is purchased from Evonik Degussa; diallyl phthalate is purchased from Chromatography; the diameter range of alkali-free chopped glass fiber is 7-15μm, and the length range is 3-5mm; the diameter of calcium sulfate whisker is 1-10μm, the length is 10-200μm, and the aspect ratio is 5-50.

[0035] The following specific embodiments may be combined with each other, and the same or similar concepts or processes therein may not be described in detail in some embodiments.

[0036] The following examples are further explanations of the present invention, but the present invention is not limited thereto. Unless otherwise specified in the examples, the percentages are all by mass.

[0037] Example

[0038] Example 1

[0039] This embodiment discloses a radiation cross-linked polyketone material, and the preparation method thereof is as follows:

[0040] 40.2 parts by mass of polyketone resin, 4 parts by mass of triallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0041] The premix was added into the twin-screw extruder by main feeding, and 30 parts by weight of alkali-free chopped glass fiber, 20 parts by weight of brominated polystyrene, and 5 parts by weight of antimony trioxide were added into the twin-screw extruder by side feeding;

[0042] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0043] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0044] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0045] Example 2

[0046] This embodiment discloses a radiation cross-linked polyketone material, and the preparation method thereof is as follows:

[0047] 51.2 parts by mass of polyketone resin, 4 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0048] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0049] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0050] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0051] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0052] Example 3

[0053] The only difference between this embodiment and embodiment 2 is that the preparation method of the radiation cross-linked polyketone material is as follows:

[0054] 51.2 parts by mass of polyketone resin, 4 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0055] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of calcium sulfate whiskers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0056] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0057] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0058] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0059] Example 4

[0060] The only difference between this embodiment and embodiment 2 is that the preparation method of the radiation cross-linked polyketone material is as follows:

[0061] 51.2 parts by mass of polyketone resin, 1 part by mass of triallyl isocyanurate, 3 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0062] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0063] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0064] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0065] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0066] Example 5

[0067] The only difference between this embodiment and embodiment 4 is that the irradiation dose is 200 kGy. Specifically, the preparation method of the irradiation cross-linked polyketone material is as follows:

[0068] 51.2 parts by mass of polyketone resin, 1 part by mass of triallyl isocyanurate, 3 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0069] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0070] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0071] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0072] The product is then irradiated with electron beam, with an irradiation dose of 200 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0073] Example 6

[0074] The only difference between this embodiment and embodiment 2 is that the preparation method of the radiation cross-linked polyketone material is as follows:

[0075] 51.2 parts by mass of polyketone resin, 1.3 parts by mass of triallyl isocyanurate, 2.7 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0076] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0077] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0078] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0079] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0080] Example 7

[0081] The only difference between this embodiment and embodiment 2 is that the preparation method of the radiation cross-linked polyketone material is as follows:

[0082] 51.2 parts by mass of polyketone resin, 0.8 parts by mass of triallyl isocyanurate, 3.2 parts by mass of trimethylallyl isocyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0083] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0084] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0085] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0086] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0087] Example 8

[0088] The only difference between this embodiment and embodiment 2 is that the crosslinking agent is bisallyl phthalate. Specifically, the preparation method of the radiation crosslinked polyketone material is as follows:

[0089] 51.2 parts by mass of polyketone resin, 4 parts by mass of bisallyl phthalate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0090] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0091] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0092] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0093] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0094] Example 9

[0095] The difference between this embodiment and embodiment 2 is that the cross-linking agent is triallyl cyanurate. Specifically, the preparation method of the radiation cross-linked polyketone material is as follows:

[0096] 51.2 parts by mass of polyketone resin, 4 parts by mass of triallyl cyanurate, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0097] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0098] The material is melt-extruded at 200° C. and 300 rpm, and then cooled, pulled and pelletized to obtain a radiation cross-linked polyketone material.

[0099] The irradiated cross-linked polyketone material prepared in this embodiment was dried at 120° C. for 4 h and then injection molded. The working conditions of the injection molding machine were as follows: the temperature of zone 1 was 190-210° C., the temperature of zone 2 was 200-220° C., the temperature of zone 3 was 210-230° C., the temperature of zone 4 was 220-240° C., the pressure was 65 MPa, and the speed was 60 mm / s.

[0100] The product is then irradiated with electron beam, with an irradiation dose of 100 kGy and a dose rate of 18000 kGy / h, to obtain an irradiation cross-linked polyketone product after shaping.

[0101] Comparative Example

[0102] Comparative Example 1

[0103] This comparative example discloses a polyketone material, and the preparation method is as follows:

[0104] 44.2 parts by mass of polyketone resin, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0105] The premix was added into the twin-screw extruder by main feeding, and 30 parts by weight of alkali-free chopped glass fiber, 20 parts by weight of brominated polystyrene, and 5 parts by weight of antimony trioxide were added into the twin-screw extruder by side feeding;

[0106] The polyketone material is obtained by melt extrusion at 200°C and 300rpm, cooling, pulling and pelletizing.

[0107] The irradiation cross-linked polyketone material prepared in this embodiment was taken, dried at 120°C for 4h, and injection molded. The working conditions of the injection molding machine were: zone 1 temperature 190-210°C, zone 2 temperature 200-220°C, zone 3 temperature 210-230°C, zone 4 temperature 220-240°C, pressure 65MPa, speed 60mm / s; a polyketone product was obtained.

[0108] Comparative Example 2

[0109] The difference between this comparative example and Example 2 is that the preparation method of the polyketone material is as follows:

[0110] 55.2 parts by mass of polyketone resin, 0.15 parts by mass of antioxidant 1098, 0.15 parts by mass of antioxidant 168, 0.2 parts by mass of silane coupling agent kh550, and 0.3 parts by mass of calcium stearate were put into a high-speed mixer and mixed to obtain a premix;

[0111] The premix is ​​added into a twin-screw extruder by a main feeding method, and then 30 parts by weight of alkali-free chopped glass fibers and 14 parts by weight of melamine polyphosphate are added into the twin-screw extruder by a side feeding method;

[0112] The polyketone material is obtained by melt extrusion at 200°C and 300rpm, cooling, pulling and pelletizing.

[0113] The irradiation cross-linked polyketone material prepared in this embodiment was taken, dried at 120°C for 4h, and injection molded. The working conditions of the injection molding machine were: zone 1 temperature 190-210°C, zone 2 temperature 200-220°C, zone 3 temperature 210-230°C, zone 4 temperature 220-240°C, pressure 65MPa, speed 60mm / s; a polyketone product was obtained.

[0114] Performance testing

[0115] Test 1: Polyketone standard products were prepared according to the methods disclosed in the examples and comparative examples, and the tensile strength was tested according to ISO 527 at a tensile speed of 50 mm / min;

[0116] Test 2: According to the methods disclosed in the embodiments and comparative examples, 125×12.5×1.6 mm polyketone flame retardant strips were prepared respectively, and the combustion grade was tested according to the standard UL94;

[0117] Test 3: According to the methods disclosed in each embodiment and each comparative example, polyketone standard products were prepared respectively. Formic acid was used as a solvent. 1 g of irradiated cross-linked polyketone standard product and non-irradiated cross-linked polyketone standard product were taken and ultrasonically dissolved at 60° C. for 6 h to obtain insoluble substances m1 and m0. The gel content C was:

[0118] C = (m1-m0) / (1-m0)×100%.

[0119] The test results are summarized in Table 1.

[0120] Table 1

[0121]

[0122]

[0123] It can be seen from Example 1 and Comparative Example 1, Examples 2-9 and Comparative Example 2 and Table 1 that the crosslinking agent can promote the crosslinking of the long chains of the polyketone resin, increase the G value of the crosslinking reaction, and inhibit the occurrence of the degradation reaction, changing the non-chain reaction into a chain reaction, and the flame retardant properties and tensile strength of the polyketone product are improved.

[0124] It can be seen from Examples 1-9 and Table 1 that the use of triallyl isocyanurate and trimethylallyl isocyanurate as crosslinking agents results in a better gel content of the polyketone material, indicating a better crosslinking effect. Furthermore, when the mass ratio of triallyl isocyanurate to trimethylallyl isocyanurate is 1:3, the crosslinking effect of the polyketone material is optimal, and the polyketone material has excellent flame retardancy and tensile strength.

[0125] It can be seen from Example 2 and Example 5 and Table 1 that as the irradiation dose increases, the gel content increases, the crosslinking degree of the polyketone material increases, and the tensile strength is improved to a certain extent.

[0126] It can be seen from Example 2, Example 3 and Table 1 that the use of calcium sulfate whiskers as a catalyst can give the polyketone material better tensile strength than glass fiber.

[0127] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A radiation cross-linked polyketone material, characterized in that: Including the following raw materials in parts by weight: 40-80 parts of polyketone resin, 0-50 parts of reinforcing material, 0-30 parts of flame retardant, 0.5-10 parts of cross-linking agent, 0-1 parts of antioxidant, 0-0.5 parts of coupling agent, 0-1 parts of lubricant; The cross-linking agent is selected from at least one of triallyl isocyanurate and trimethallyl isocyanurate.

2. The radiation cross-linked polyketone material according to claim 1, characterized in that: The cross-linking agent is triallyl isocyanurate and trimethallyl isocyanurate in a mass ratio of 1:(2-4).

3. The radiation cross-linked polyketone material according to claim 2, characterized in that: The cross-linking agent is triallyl isocyanurate and trimethallyl isocyanurate in a mass ratio of 1:

3.

4. The radiation cross-linked polyketone material according to claim 1, characterized in that: The reinforcing material is selected from one or more of glass fiber, calcium sulfate whisker and calcium carbonate whisker.

5. The radiation cross-linked polyketone material according to claim 1, characterized in that: The lubricant is preferably at least one of calcium stearate, pentaerythritol stearate and silicone powder.

6. The radiation cross-linked polyketone material according to claim 1, characterized in that: The antioxidant includes a primary antioxidant and an auxiliary antioxidant. The primary antioxidant is selected from at least one of antioxidant 1098, antioxidant 1010, antioxidant 1076, and antioxidant 702; the auxiliary antioxidant is selected from at least one of antioxidant 168 and antioxidant 9228.

7. The radiation cross-linked polyketone material according to claim 1, characterized in that: The flame retardant is selected from one or more of brominated polystyrene, melamine polyphosphate, and antimony trioxide.

8. The radiation cross-linked polyketone material according to claim 1, characterized in that: The radiation cross-linked polyketone material can be cured by radiation cross-linking, wherein the electron beam energy of the radiation cross-linking is 0.5-10 MeV, the radiation dose is 100-300 kGy, and the dose rate is 15000-20000 kGy / h.

9. A method for preparing the radiation cross-linked polyketone material according to any one of claims 1 to 8, characterized in that: The following steps are involved: According to the proportion, polyketone resin, crosslinking agent, antioxidant, coupling agent and lubricant are mixed and added into a twin-screw extruder by main feeding; reinforcing material and flame retardant are added thereto by side feeding, and after melt extrusion, cooling, pulling and pelletizing, radiation crosslinked polyketone material is obtained.

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