Plastic material and vacuum cup

Abstract

The application relates to the field of plastic materials, in particular to a plastic material and a vacuum cup, which are prepared from the following raw materials in parts by weight: 85-95 parts of polycarbonate resin, 5-15 parts of PET resin, 5-10 parts of ethylene-methyl acrylate copolymer, 1-5 parts of multifunctional isocyanate and 1-5 parts of long-afterglow light particles; the structural formula of the long-afterglow light particles is M 4‑x‑y‑z Pr x Gd y A z Ti3O 10 ; wherein M is an alkaline earth metal element, A is an alkali metal element, 0.1<=x<=0.2, 0 The prepared plastic material has excellent mechanical properties and is widely applied.

Description

TECHNICAL FIELD

[0001] The application relates to the field of plastic materials, and particularly relates to a plastic material and a vacuum cup. BACKGROUND

[0002] Polycarbonate is a transparent, non-toxic, odorless, amorphous thermoplastic polymer, which has excellent elongation, electrical insulation, high heat resistance and dimensional stability, and is widely used in daily necessities, food packaging, medical treatment, electronics and electrical appliances, automobiles, building materials and other fields. How to improve its performance to meet more functional requirements has become a research hotspot at present. SUMMARY

[0003] The application provides a plastic material and a vacuum cup.

[0004] The technical scheme adopted is as follows:

[0005] A plastic material is prepared from the following raw materials in parts by weight:

[0006] polycarbonate resin 85-95 parts, PET resin 5-15 parts, ethylene-methyl acrylate copolymer 5-10 parts, multifunctional isocyanate 1-5 parts and long-afterglow light particles 1-5 parts.

[0007] The long-afterglow light particles have a structural formula of M 4-x-y-z Pr x Gd y A z Ti3O 10 ;

[0008] M is an alkaline earth metal element, and A is an alkali metal element.

[0009] 0.1<=x<=0.2, 0

[0010] Further, the long-afterglow light particles have a layered structure.

[0011] Further, the long-afterglow light particles are modified by being intercalated with a vinyl amino acid and being subjected to silicon hydrogen addition with hydrogen-containing silicone oil.

[0012] Further, the vinyl amino acid is any one or more than one combination of vinyl glycine, vinyl histidine and vinyl aspartic acid.

[0013] Still further, the amino acid is vinyl glycine.

[0014] Further, M is Ca and / or Sr, and A is Li, Na or K.

[0015] Further, M is Sr, and A is Na.

[0016] Further, 0.15<=x<=0.17, 0.01<=y<=0.03, 0.01<=z<=0.03.

[0017] Further, x=0.16, y=0.02, z=0.02.

[0018] Further, the multi-functional isocyanate is obtained by reacting pentaerythritol with aromatic diisocyanate.

[0019] Further, the aromatic diisocyanate is toluene diisocyanate and / or diphenyl methane diisocyanate.

[0020] Further, the molar ratio of pentaerythritol to aromatic diisocyanate is 1:3.

[0021] The present application also provides a vacuum cup, the shell or the whole of which is made of the above-mentioned plastic material, and due to the addition of long-afterglow light particles, the vacuum cup can emit persistent light at night after absorbing light during the day, and is more beautiful and convenient to find.

[0022] The present application has the following beneficial effects:

[0023] The present application provides a plastic material, and there are reports in the prior art that PET resin is added to modify polycarbonate resin and is applied in industry, and the two can complement each other and optimize the performance of the plastic material, ethylene-methyl acrylate copolymer as a binary copolymer has excellent softness, elasticity, and excellent compatibility, and as a compatibilizer, it can optimize the two-phase interface, avoid phase separation, and toughen the material, and the addition of long-afterglow light particles can expand the functionality of the plastic material, and the vacuum cup can emit persistent light at night after absorbing light during the day, and is more beautiful and eye-catching, and the long-afterglow light particles as reinforcing particles can also improve the mechanical properties of the plastic material, the long-afterglow material is acidified by ion exchange reaction, and the terminal amino group of the vinyl amino acid is connected to the long-afterglow material layer by hydrogen bond to complete intercalation, and the vinyl group of the vinyl amino acid is connected to the hydrogen-containing silicone oil by addition reaction, so that the prepared long-afterglow light particles contain carboxyl and unreacted active Si-H bonds on the hydrogen-containing silicone oil, so that higher density crosslinking with the resin matrix can be achieved, the isocyanate groups in the multi-functional isocyanate can react with the terminal hydroxyl groups or terminal carboxyl groups in the PET resin to crosslink, and also can react with the carboxyl groups on the long-afterglow light particles to crosslink, so that the mechanical properties of the plastic material are improved by chain extension, crosslinking or coupling, and the prepared plastic material has excellent mechanical properties and is widely used. DETAILED DESCRIPTION

[0024] Unless otherwise specified, the examples were carried out under conventional conditions or according to the manufacturer's instructions. Unless otherwise specified, the reagents or instruments used were conventional products available on the market. Unless otherwise specified, the techniques not mentioned in the present application refer to the prior art. The following examples and comparative examples are parallel tests using the same processing steps and parameters.

[0025] Example 1:

[0026] A plastic material was prepared from the following raw materials in parts by weight:

[0027] Polycarbonate resin 90 parts, PET resin 10 parts, ethylene-methyl acrylate copolymer 6 parts, multifunctional isocyanate 1 part, long afterglow luminescent particles 3 parts;

[0028] The structural formula of the long afterglow luminescent particles is Sr 3.8 Pr 0.16 Gd 0.02 Na 0.02 Ti3O 10 The long afterglow luminescent particles have a layered structure, and the specific preparation method is as follows:

[0029] The analytical pure SrCO3, TiO2, Pr6O 11 , Gd2O3, Na2CO3 were placed in a ball mill jar according to the molar ratio of the structural formula, and mixed and ball milled in a planetary ball mill for 10 h with anhydrous ethanol as a ball milling aid. The ball milling product was dried and placed in a crucible, and heated to 1300°C in a box furnace, and kept for 2 h to cause solid phase reaction. After cooling to room temperature, grinding was carried out to obtain long afterglow material with layered structure. 10 g of the prepared long afterglow material was placed in 500 ml of 0.1 M hydrochloric acid solution, heated to reflux for 5 h, and after the reaction was completed, the precipitate was filtered off, washed with distilled water until neutral, and then dried. Then, 1 g of L-vinyl glycine was added to 250 ml of deionized water, and the mixture was heated in a water bath at 80°C for 7 days. After the reaction was completed, the precipitate was filtered off, washed with deionized water, and dried to obtain a pre-intercalated long afterglow material. 10 g of the pre-intercalated long afterglow material was added to 50 ml of hydrogen-containing silicone oil, stirred uniformly, and then a Karstedt catalyst was added. The mixture was heated in a water bath at 80°C for 24 h under nitrogen protection. After the reaction was completed, the precipitate was filtered off, and then Soxhlet extracted with a V(acetone):V(n-hexane)=50:50 mixed solvent for 60 h, and dried.

[0030] The preparation method of the multifunctional isocyanate is as follows:

[0031]

[0032] In a flask, 0.3 mol of diphenyl methane diisocyanate, 2 g of catalyst DBTDL, 500 ml of ethyl acetate were added, and the mixture was heated to 60°C under stirring, then 0.1 mol of pentaerythritol was added, and the reaction was continued for 5 h under stirring, and then the ethyl acetate was removed by distillation under reduced pressure to obtain a hyperbranched polyisocyanate, with a yield of 60.2%, ESI-MS (m / z) (M + ) : Theoretical value 884.95, measured value 884.27.

[0033] The preparation method of the above-mentioned plastic material is as follows:

[0034] The raw materials were added to a torque rheometer, and melt blending was carried out at 270±10°C and 60 r / min to obtain a mixed material. The mixed material was extruded and granulated to obtain a master batch. The master batch was added to an injection molding machine, and the injection molding machine was set at 280±10°C and 120 MPa. The sample was obtained by injection molding. After irradiation for 5 min with a high-pressure mercury lamp light source, the red long afterglow luminescence was observed for 86 min by naked eye.

[0035] Example 2:

[0036] A plastic material was prepared from the following raw materials in parts by weight:

[0037] Polycarbonate resin 90 parts, PET resin 10 parts, ethylene-methyl acrylate copolymer 6 parts, multifunctional isocyanate 2 parts, long afterglow luminescent particles 3 parts;

[0038] The preparation method of the long afterglow luminescent particles and the multifunctional isocyanate was the same as in Example 1.

[0039] The preparation method of the above-mentioned plastic material is as follows:

[0040] The raw materials were added to a torque rheometer, and melt blending was carried out at 270±10°C and 60 r / min to obtain a mixed material. The mixed material was extruded and granulated to obtain a master batch. The master batch was added to an injection molding machine, and the injection molding machine was set at 280±10°C and 120 MPa. The sample was obtained by injection molding.

[0041] Example 3:

[0042] A plastic material was prepared from the following raw materials in parts by weight:

[0043] Polycarbonate resin 90 parts, PET resin 10 parts, ethylene-methyl acrylate copolymer 6 parts, multifunctional isocyanate 3 parts, long afterglow luminescent particles 3 parts;

[0044] The preparation method of the long afterglow luminescent particles and the multifunctional isocyanate was the same as in Example 1.

[0045] The preparation method of the above plastic material is as follows:

[0046] The raw materials are added into a torque rheometer, and melt blending is carried out at 270±10℃ and 60r / min to obtain a mixed material. The mixed material is extruded and granulated to obtain a master batch. The master batch is added into an injection molding machine, and the injection molding machine is set at 280±10℃ and 120MPa to obtain a sample by injection molding.

[0047] Example 4:

[0048] A plastic material is prepared from the following raw materials in parts by weight:

[0049] 90 parts of polycarbonate resin, 10 parts of PET resin, 6 parts of ethylene-methyl acrylate copolymer, 4 parts of multifunctional isocyanate, and 3 parts of long afterglow luminescent particles;

[0050] The preparation method of the long afterglow luminescent particles and the multifunctional isocyanate is the same as that in Example 1.

[0051] The preparation method of the above plastic material is as follows:

[0052] The raw materials are added into a torque rheometer, and melt blending is carried out at 270±10℃ and 60r / min to obtain a mixed material. The mixed material is extruded and granulated to obtain a master batch. The master batch is added into an injection molding machine, and the injection molding machine is set at 280±10℃ and 120MPa to obtain a sample by injection molding.

[0053] Example 5:

[0054] A plastic material is prepared from the following raw materials in parts by weight:

[0055] 90 parts of polycarbonate resin, 10 parts of PET resin, 6 parts of ethylene-methyl acrylate copolymer, 4 parts of multifunctional isocyanate, and 3 parts of long afterglow luminescent particles;

[0056] The preparation method of the long afterglow luminescent particles and the multifunctional isocyanate is the same as that in Example 1.

[0057] The preparation method of the above plastic material is as follows:

[0058] The raw materials are added into a torque rheometer, and melt blending is carried out at 270±10℃ and 60r / min to obtain a mixed material. The mixed material is extruded and granulated to obtain a master batch. The master batch is added into an injection molding machine, and the injection molding machine is set at 280±10℃ and 120MPa to obtain a sample by injection molding.

[0059] Comparative Example 1:

[0060] It is basically the same as Example 1, except that no multifunctional isocyanate is added.

[0061] Comparative Example 2:

[0062] The same as Example 1 except that diphenylmethane diisocyanate is used instead of the polyfunctional isocyanate.

[0063] Comparative Example 3:

[0064] The same as Example 1 except that no long afterglow luminescent particles are added.

[0065] Comparative Example 4:

[0066] The same as Example 1 except that the long afterglow luminescent particles have the structural formula Sr 3.8 Pr 0.16 Gd 0.02 Na 0.02 Ti3O 10 and have a layered structure, and are prepared as follows:

[0067] The analytically pure SrCO3, TiO2, Pr6O 11 , Gd2O3, Na2CO3 are placed in a ball mill jar in a molar ratio according to the structural formula, and mixed and ball milled in a planetary ball mill for 10 h using anhydrous ethanol as a ball milling aid. The ball milled product is dried and placed in a crucible, and heated to 1300°C in a box furnace, and held for 2 h to cause a solid phase reaction. After the temperature is returned to room temperature, it is ground.

[0068] Comparative Example 5:

[0069] The same as Example 1 except that the long afterglow luminescent particles have the structural formula Sr 3.8 Pr 0.16 Gd 0.02 Na 0.02 Ti3O 10 and have a layered structure, and are prepared as follows:

[0070] The analytically pure SrCO3, TiO2, Pr6O 11, Gd2O3, Na2CO3 were placed in a ball mill jar, with anhydrous ethanol as a ball milling agent, and mixed and ball milled in a planetary ball mill for 10 h. The ball milled product was dried and then placed in a crucible and heated to 1300 DEG C in a box furnace, and kept for 2 h to make it undergo solid phase reaction. After the temperature was recovered to room temperature, the long afterglow material with a layered structure was obtained by grinding. 10 g of the prepared long afterglow material was placed in 500 ml of 0.1 M hydrochloric acid solution, heated to reflux, and reacted for 5 h. After the reaction was completed, the precipitate was filtered out, washed with distilled water until neutral, and then dried. Then, the dried product was added to 250 ml of deionized water, 1 g of L-vinyl glycine was added, and the mixture was heated in a water bath at 80 DEG C for 7 days. After the reaction, the precipitate was filtered out, washed with deionized water, and dried.

[0071] Performance test

[0072] The plastic materials in Examples 1-5 and Comparative Examples 1-5 were respectively prepared into test samples for performance test.

[0073] The notched impact strength of the simple beam was tested according to GB / T 1043.1-2008. The sample was 80.0 mm long, 10.0 mm wide, and 4.0 mm thick, and the V-shaped notch had a depth of 2.0 mm. The maximum impact energy was 1 J.

[0074] The tensile properties were tested according to GB / T 1040.1-2018. The sample was dumbbell-shaped, with a size of 115 mm x 10 mm x 4 mm. The tensile speed was 20 mm / min, the initial distance between the clamps was 115.0 mm, and the gauge length was 50.0 mm.

[0075] The bending properties were tested according to GB / T 1043.1-2008. The sample was 80.0 mm long, 10.0 mm wide, and 4.0 mm thick. The bending speed was 5 mm / min.

[0076] The test results are shown in Table 1 below.

[0077] Table 1

[0078]

[0079] As shown in Table 1 above, the plastic material prepared by the application has excellent mechanical properties.

[0080] As shown by the comparison of Examples 1-6, with the increase of the content of the multi-functional isocyanate, the mechanical properties of the plastic material show a trend of first increasing and then decreasing.

[0081] As shown by the comparison of Example 1 and Comparative Example 1, the addition of the multi-functional isocyanate plays a positive role in improving the mechanical properties of the plastic material.

[0082] By comparing example 1 with comparative example 2, it can be seen that the addition of multifunctional isocyanate has a higher improvement on the mechanical properties of plastic materials than diphenyl methane diisocyanate;

[0083] By comparing example 1 with comparative example 3, it can be seen that the addition of long afterglow particles has a positive effect on the improvement of the mechanical properties of plastic materials;

[0084] By comparing example 1 with comparative examples 4-5, it can be seen that the vinyl amino acid intercalation and hydrogen-containing silicone oil addition have a positive effect on the improvement of the mechanical properties of plastic materials.

[0085] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A plastic material, characterized in that, Prepared from the following raw materials in parts by weight: Polycarbonate resin 85-95 parts, PET resin 5-15 parts, ethylene-methyl acrylate copolymer 5-10 parts, multifunctional isocyanate 1-5 parts, long afterglow luminescent particles 1-5 parts; The long-afterglow luminescent particle has a structural formula of M 4-x-y-z Pr x Gd y A z Ti3O 10； M is Ca and / or Sr, and A is Li, Na or K; 0.15≤x≤0.17, 0.01≤y≤0.03, 0.01≤z≤0.03; The long afterglow luminescent particles have a layered structure. The long afterglow luminescent particles are modified by vinyl amino acid intercalation and hydrosilicone addition. The multifunctional isocyanate is obtained by reacting pentaerythritol with aromatic diisocyanate.

2. The plastic material of claim 1, wherein, The vinyl amino acid is any one or more than one combination of vinyl glycine, vinyl histidine, and vinyl aspartic acid.

3. The plastic material of claim 1, wherein, The aromatic diisocyanate is toluene diisocyanate and / or diphenyl methane diisocyanate.

4. The plastic material of claim 1, wherein, The molar ratio of pentaerythritol to aromatic diisocyanate is 1:

3.

5. A vacuum cup, characterized in that, Prepared from the plastic material of any one of claims 1-4. Prepared from the plastic material of any one of claims 1-4.

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