Degradable antistatic dustproof antifouling filling master batch as well as preparation method and application thereof

Abstract

The invention belongs to the technical field of plastics, and particularly relates to a degradable antistatic dustproof antifouling filling master batch as well as a preparation method and application thereof. The filling master batch is prepared from the following raw materials in parts by mass: 35 to 60 parts of degradable polymer, 20 to 35 parts of antistatic agent, 5 to 10 parts of coupling agent, 20 to 35 parts of dustproof agent, 10 to 20 parts of anti-pollution agent, 5 to 15 parts of dispersing agent and 10 to 20 parts of antioxidant. The degradable polymer is adopted as a matrix material for filling the master batch, and the antistatic agent, the dust-proof agent and the anti-pollution agent are introduced into the matrix material, so that the multi-functionalization of the master batch is realized. The obtained filling master batch not only has good degradability, but also has excellent antistatic, dustproof and anti-fouling properties, and meets the development requirements of environment-friendly plastic materials.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plastics, and particularly relates to a degradable antistatic dustproof and antifouling filling master batch as well as a preparation method and application thereof. BACKGROUND

[0002] Traditional filling master batches are usually made of synthetic plastics or other non-degradable materials, which will generate a large amount of waste after use and cause environmental pollution. In order to solve this problem, researchers have devoted to developing degradable filling master batches to reduce the negative impact on the environment. On the other hand, with the popularity of electronic devices and the wide application of electronic products in daily life, the problem of static electricity is becoming more and more prominent. Static electricity not only causes damage to the equipment, but also adsorbs dust, dirt and other substances, affecting the appearance and service life of the product. Therefore, it is crucial to develop a degradable antistatic dustproof and antifouling master batch to meet market demand. SUMMARY

[0003] Therefore, the purpose of the present application is to provide a degradable antistatic dustproof and antifouling filling master batch as well as a preparation method and application thereof. The degradable antistatic dustproof and antifouling filling master batch provided by the present application not only has good degradability, but also has excellent antistatic dustproof and antifouling performance.

[0004] In order to achieve the above purpose, the present application provides the following technical solutions:

[0005] The present application provides a degradable antistatic dustproof and antifouling filling master batch, which comprises the following raw materials in mass fraction:

[0006]

[0007] Preferably, the degradable polymer comprises one or more of polycaprolactone, polypropylene carbonate, polybutylene succinate and polyhydroxyalkanoate.

[0008] Preferably, the antistatic agent comprises one or more of polypyrrole, polythiophene and polyacetylene.

[0009] Preferably, the coupling agent is an active ester coupling agent.

[0010] Preferably, the dustproof agent is calcium stearate.

[0011] Preferably, the dispersing agent is a polymeric dispersing agent.

[0012] Preferably, the antifouling agent is fluorosilane.

[0013] Preferably, the antioxidant is a phosphoric acid ester antioxidant.

[0014] The application further provides a preparation method of the degradable antistatic dustproof and antifouling filling master batch, and the method comprises the following steps:

[0015] The degradable polymer, the antistatic agent and the coupling agent are mixed to perform activation pretreatment, so as to obtain a pretreated mixture;

[0016] The pretreated mixture, the dustproof agent, the antifouling agent, the dispersing agent and the antioxidant are mixed to perform melt extrusion, so as to obtain the degradable antistatic dustproof and antifouling filling master batch.

[0017] The application further provides application of the degradable antistatic dustproof and antifouling filling master batch or the degradable antistatic dustproof and antifouling filling master batch prepared by the preparation method in plastic products.

[0018] The application provides a degradable antistatic dustproof and antifouling filling master batch, which comprises the following raw materials in mass fraction:

[0019]

[0020] The application adopts the degradable polymer as the matrix material of the filling master batch, adds the antistatic agent, the dustproof agent and the antifouling agent, so as to obtain the degradable antistatic dustproof and antifouling filling master batch which not only has good degradability, but also has excellent antistatic, dustproof and antifouling properties. The degradable antistatic dustproof and antifouling filling master batch can be widely applied to production of plastic products, such as packaging materials and electronic product shells, and is also suitable for specific industries which need antistatic, dustproof and antifouling properties, such as the electronic industry and the medical instrument industry. The degradable property of the master batch enables the master batch to be naturally degraded after use, reduces negative influence on the environment and meets the requirement of sustainable development. DETAILED DESCRIPTION

[0021] The application provides a degradable antistatic dustproof and antifouling filling master batch, which comprises the following raw materials in mass fraction:

[0022]

[0023]

[0024] Unless otherwise specified, the application does not have special requirements for the source of the raw materials, and commercially available goods known to those skilled in the art can be used.

[0025] The raw materials of the degradable antistatic dustproof and antifouling filling master batch provided by the application comprise 35-60 parts of degradable polymer, and in specific embodiments, 40-50 parts.

[0026] As an embodiment, the degradable polymer comprises one or more of polycaprolactone, polypropylene carbonate, polybutylene succinate and polyhydroxyalkanoate, and in particular embodiments, polycaprolactone; the melting point of the polypropylene carbonate is 111℃, the melting point of the polybutylene succinate is 114℃, and the melting point of the polyhydroxyalkanoate is 175℃. The degradable polymer is used as a resin matrix of the filling master batch; the number average molecular weight of the degradable polymer is 50,000-350,000, and in particular embodiments, 80,000-120,000.

[0027] Polycaprolactone is a biodegradable polymer prepared by ring-opening polymerization or ring-opening polymerization of caprolactone monomers. Polycaprolactone has good plasticity, processability and biocompatibility, and therefore has wide application in the fields of medicine, biological engineering, drug delivery, tissue engineering, etc. The main features of polycaprolactone include: (1) biodegradability: can be degraded by microorganisms in the natural environment, and finally decomposed into carbon dioxide and water, without pollution to the environment. (2) Biocompatibility: has good biocompatibility, no toxic and side effects to human tissues and cells, and is widely used in the fields of medical devices, sutures, repair materials, etc. (3) Plasticity and processability: has a low melting point and glass transition temperature, is easy to process into various shaped products, and can be processed by thermoplastic processing methods such as injection molding, extrusion, thermoforming, etc. (4) High tensile strength and wear resistance: although the mechanical properties of polycaprolactone are not as good as some traditional synthetic polymers, it still has certain tensile strength and wear resistance, and can play a good performance in some applications.

[0028] The raw materials of the degradable antistatic dustproof and stain-resistant filling master batch provided by the application include 20-35 parts of antistatic agent, and in particular embodiments, 25-30 parts, based on 1 part by mass of the degradable polymer.

[0029] As an embodiment, the antistatic agent comprises one or more of polypyrrone, polythiophene and polyacetylene, and in particular embodiments, polypyrrone; the particle size of the polypyrrone is 50-150μm, and in particular embodiments, 60-80μm, the chemical formula is C4H5N, and the number average molecular weight is 50,000-200,000, and in particular embodiments, 50,000-150,000. The antistatic agent is a conductive polymer, mainly highlighting the antistatic effect.

[0030] As an embodiment, the polypyrrone is a doped polypyrrone produced by Shanghai Aladdin Biochemical Technology Co., Ltd., with CAS number: 30604-81-0, doped, electrical conductivity 30S / cm (volume), and the label range is 20wt.% loading, compounded with carbon black; the polypyrrone used in the application is a purchased product, without secondary modification or self-made.

[0031] Polyazoles are prepared by chemical oxidation of pyrrole monomers in the presence of hydrogen peroxide, and are black powdery materials. In its undoped original state, polyazoles behave like an insulating material, and the electrical conductivity and chemical properties of polyazoles can be changed by doping different ions or molecules, for example, doping with noble metal salts can enhance its electrical conductivity, and when it is doped with halogen electron acceptors such as bromine or iodine, it shows constant electrical conductivity. For polyazoles synthesized electrochemically, with a thickness of 1 μm and a yellow-black color, conversion occurs by increasing the protonation concentration; it has high thermal stability in the range of 300°C in air; due to the side chains and terminal groups of polyazoles, which can be functionalized by chemical modification, thus changing its solubility, adsorbability and reactivity, etc., thermal degradation occurs when the dopant anion is lost. Polyazoles are a kind of high polymer materials with special properties, and are usually used in the fields of electronics, optoelectronics and biomedicine. It is made by polymerizing pyrrole monomers, which is a nitrogen-containing cyclic compound with good electrical conductivity and optical properties. At the same time, due to its electrical conductivity and stability, it has been widely concerned and can be used to manufacture sensors, battery electrodes, conductive coatings, supercapacitors and other electronic devices. In addition, polyazoles also have biocompatibility and can be used in biomedical applications, such as drug delivery systems, tissue engineering and biosensors.

[0032] The raw materials of the degradable antistatic dustproof and stain-resistant filling master batch provided by the application include 5-10 parts of coupling agent, specifically 5-8 parts in the specific embodiment, based on 1 mass part of degradable polymer.

[0033] As an implementation manner, the coupling agent is an active ester coupling agent, specifically N-hydroxy succinimide, with a chemical formula of C4H5NO3. The coupling agent can perform pre-activation treatment on the added degradable polymer particles, and can enhance the interfacial bonding force between the organic polymer and other components in the filling master batch.

[0034] The raw materials of the degradable antistatic dustproof and stain-resistant filling master batch provided by the application include 20-35 parts of dustproof agent, specifically 20-25 parts in the specific embodiment, based on 1 mass part of degradable polymer.

[0035] As an implementation manner, the dustproof agent is calcium stearate, with a molecular formula of C 36 H 70 CaO4. The addition of the dustproof agent can effectively inhibit the adhesion and accumulation of dust on the surface of plastic products, and has the effect of dust prevention.

[0036] The raw materials of the degradable antistatic dustproof and stain-resistant filling master batch provided by the application include 10-20 parts of anti-pollution agent, specifically 10-15 parts in the specific embodiment, based on 1 mass part of degradable polymer.

[0037] As an embodiment, the anti-pollution agent is fluorosilane, and in particular embodiments, perfluorooctyltriethoxysilane with a chemical formula of CF3(CF2)6Si(OC2H5)3 and an average particle size of 20-100 nm, and in particular embodiments, 20-50 nm. The anti-pollution agent can improve the anti-attachment ability of dust and other stains on the surface of the plastic product and enhance the cleanability.

[0038] The raw materials of the degradable antistatic dustproof and anti-pollution filling master batch provided by the application include 5-15 parts of dispersant, and in particular embodiments, 10 parts, based on 1 part by mass of the degradable polymer.

[0039] As an embodiment, the dispersant is a polymeric dispersant, and in particular embodiments, polyoxyethylene sorbitan fatty acid ester with a chemical formula of C 24 H 44 O6(C2H 4O ) 20 The dispersant can improve the dispersibility of pigments, fillers and other ingredients during plastic processing and has multiple functions such as lubrication, dispersion, gloss, demolding, smoothing and anti-sticking.

[0040] The raw materials of the degradable antistatic dustproof and anti-pollution filling master batch provided by the application include 10-20 parts of antioxidant, and in particular embodiments, 10-15 parts, based on 1 part by mass of the degradable polymer.

[0041] As an embodiment, the antioxidant is a phosphoric acid ester antioxidant, and in particular embodiments, triphenyl phosphate with a chemical formula of C 27 H 33 O4P. The antioxidant is used to delay the oxidative degradation of plastics.

[0042] The application also provides a preparation method of the degradable antistatic dustproof and anti-pollution filling master batch described in the above technical solutions, which includes the following steps:

[0043] The degradable polymer, the antistatic agent and the coupling agent are mixed for activation pretreatment to obtain a pretreated mixture;

[0044] The pretreated mixture, the dustproof agent, the anti-pollution agent, the dispersant and the antioxidant are mixed for melt extrusion to obtain the degradable antistatic dustproof and anti-pollution filling master batch.

[0045] As an embodiment, the degradable polymer, the antistatic agent and the coupling agent are mixed by: grinding and crushing the degradable polymer and the antistatic agent respectively, and then mixing the ground and crushed degradable polymer and the antistatic agent with the coupling agent under the condition of heating and stirring, and drying; the rotation speed of the grinding and crushing is 1000-2000 rpm, and in a specific embodiment, 1500 rpm; the particle size of the ground and crushed product is 50-200 μm, and in a specific embodiment, 80-150 μm; the grinding and crushing equipment is a high-energy ball mill, and the grinding medium is glass beads; the grinding and crushing is wet grinding; and the grinding and crushing time is 60-90 min, and in a specific embodiment, 80 min. In the present application, the degradable polymer and the antistatic agent are placed in a rotating grinding cylinder together with the medium, and then wet grinding is performed to gradually refine the particles.

[0046] As an embodiment, the temperature of the heating and stirring is 60-95 °C, and in a specific embodiment, 90 °C; the stirring speed is 1000-2500 rpm, and in a specific embodiment, 1000-2000 rpm; the stirring time is 60-200 min, and in a specific embodiment, 90-150 min; the drying temperature is 60-120 °C, and in a specific embodiment, 100 °C; and the drying time is 12-24 h, and in a specific embodiment, 12 h, 16 h or 18 h.

[0047] As an embodiment, the activation pretreatment is performed under grinding; the rotation speed of the grinding is 1000-1500 rpm, and in a specific embodiment, 1000 rpm; the activation pretreatment temperature is 80-120 °C, and in a specific embodiment, 100 °C; and the activation pretreatment time is 30-90 min, and in a specific embodiment, 60 min.

[0048] As an embodiment, the melting extrusion equipment is a melting extruder; the melting extrusion temperature is 125-375 °C, and in a specific embodiment, 125-200 °C; the melting extrusion is performed under stirring; the rotation speed of the melting extrusion is 1000-2500 rpm, and in a specific embodiment, 1500 rpm; the melting extrusion time is 120-240 min, and in a specific embodiment, 120-180 min; and the melting extrusion pressure is 10-30 MPa, and in a specific embodiment, 25-28 MPa.

[0049] As an embodiment, the melt extruder is a twin-screw extruder, and in particular embodiments, a twin-screw extruder from Germany, Siemens; the temperature of each zone of the twin-screw extruder is as follows: the temperature of the feeding zone is 100-110℃, and in particular embodiments, 100℃; the temperature of the pre-melting zone is 120℃; the temperature of the first melting zone is 160℃; the temperature of the first high-temperature shearing zone is 185℃; the temperature of the second high-temperature shearing zone is 210℃; the temperature of the second melting zone is 230℃; the temperature of the die zone is 230-260℃, and in particular embodiments, 240℃; and the temperature of the discharge port melting zone is 250℃; the length-to-diameter ratio of the twin-screw extruder is (40-50):1, and in particular embodiments, 44-45:1; and the screw rotation speed is 200-400rpm, and in particular embodiments, 300rpm.

[0050] As an embodiment, after the melt extrusion, the product of the melt extrusion is further cooled, granulated, and dried to obtain the degradable antistatic dustproof and stain-resistant filling master batch; the granulation is cutting of the cooled melt extrusion product; the length of the granules obtained by the granulation is 2-10mm, and in particular embodiments, 4-5mm; the cooling is water cooling or air cooling, and in particular embodiments, water cooling; the cooling is to room temperature; the cooling time is not less than 5min, and in particular embodiments, 10-15min; the drying temperature is 60-100℃, and in particular embodiments, 80-90℃; and the drying time is 2-6h, and in particular embodiments, 4-5h.

[0051] The application also provides an application of the degradable antistatic dustproof and stain-resistant filling master batch in a plastic product.

[0052] The application of the degradable antistatic dustproof and stain-resistant filling master batch in a plastic product is not particularly limited, and the application mode known in the art can be used.

[0053] The technical solutions in the application will be described clearly and completely below with reference to the embodiments in the application, but they should not be understood as limitations on the protection scope of the application.

[0054] Example 1

[0055] 1. A certain amount of polycaprolactone (number average molecular weight 80,000) and polypyrrole (particle size 80 μm, number average molecular weight 50,000) are weighed and added to a high-energy ball mill, glass beads are used as grinding medium, wet grinding is carried out at a speed of 1500 rpm for 60 min, the powder with a particle size of 100 μm after grinding is added to a high-efficiency mixer, a coupling agent (N-hydroxy succinimide) is added, heating and stirring are carried out at 90°C and 1000 rpm for 90 min, then drying is carried out at 100°C for 12 h, while grinding at 1000 rpm and activation pretreatment at 50°C for 30 min, the mass fraction is: polycaprolactone 35 parts, polypyrrole 20 parts, coupling agent (N-hydroxy succinimide) 5 parts;

[0056] 2. After stirring, the pretreated mixture is placed in a twin-screw extruder with a dust-proof agent (calcium stearate) 20 parts, an anti-pollution agent (perfluorooctyl triethoxysilane particles, average particle size 20 nm) 10 parts, a dispersing agent (polyoxyethylene sorbitan fatty acid ester) 10 parts, and an antioxidant (triphenyl phosphate) 10 parts. The L / D of the twin-screw extruder is 44:1, preheating is carried out for 4 min, then melt extrusion is carried out, the temperature of each zone of the twin-screw extruder is: feeding zone 100°C, pre-melting zone 120°C, first melting zone 160°C, first high-temperature shearing zone 185°C, second high-temperature shearing zone 210°C, second melting zone 230°C, die zone 240°C, and melt zone at the discharge port 250°C. The screw rotation speed is 320 rpm, the pressure is 25 MPa, and the time is 120 min. Then vacuumizing, air cooling for 10 min, and granulation are carried out to obtain granules with a length of 5 mm. Finally, drying is carried out at 80°C for 240 min to obtain a degradable antistatic dust-proof and anti-pollution filling master batch.

[0057] Example 2

[0058] 1. A certain amount of polycaprolactone (number average molecular weight 80,000) and polypyrrole (particle size 80 μm, number average molecular weight 50,000) are weighed and added to a high-energy ball mill, glass beads are used as grinding medium, wet grinding is carried out at a speed of 1500 rpm for 60 min, the powder with a particle size of 100 μm after grinding is added to a high-efficiency mixer, a coupling agent (N-hydroxy succinimide) is added, heating and stirring are carried out at 90°C and 1000 rpm for 90 min, then drying is carried out at 100°C for 12 h, while grinding at 1000 rpm and activation pretreatment at 50°C for 30 min, the mass fraction is: polycaprolactone 35 parts, polypyrrole 20 parts, coupling agent (N-hydroxy succinimide) 5 parts;

[0059] (2) After stirring, the pretreated mixture was placed in a twin-screw extruder with 25 parts of a dust-proof agent (calcium stearate), 15 parts of an anti-fouling agent (perfluorooctyltriethoxysilane particles with an average particle size of 20 nm), 10 parts of a dispersing agent (polyoxyethylene sorbitan fatty acid ester), and 15 parts of an antioxidant (triphenyl phosphate). The L / D of the twin-screw extruder was 44:1. After preheating for 4 min, melt extrusion was performed. The temperature of each zone of the twin-screw extruder was as follows: the feeding zone was 105°C, the pre-melting zone was 130°C, the first melting zone was 170°C, the first high-temperature shearing zone was 190°C, the second high-temperature shearing zone was 210°C, the second melting zone was 230°C, the die zone was 245°C, and the melt zone at the discharge port was 255°C. The screw rotation speed was 320 rpm, the pressure was 26 MPa, and the time was 150 min. Then, vacuumization and air cooling were performed for cooling for 12 min, and the pellets were cut to obtain pellets with a length of 4 mm. Finally, drying was performed at 85°C for 240 min to obtain the degradable antistatic dust-proof and anti-fouling master batch.

[0060] Example 3

[0061] (1) A certain amount of polycaprolactone (number average molecular weight 120,000) and polypyrrole (particle size 60 μm, number average molecular weight 70,000) were weighed and added to a high-energy ball mill, with glass beads as the grinding medium, and wet grinding was performed at a rotation speed of 1500 rpm for 80 min. The powder with a particle size of 80 μm after grinding was added to a high-efficiency mixer, and a coupling agent was added. Heating and stirring were performed at 90°C and 1000 rpm for 150 min. Then, after drying at 100°C for 18 h, activation pretreatment was performed at 50°C for 30 min while grinding at 1000 rpm. The mass fractions were as follows: polycaprolactone 60 parts, polypyrrole 35 parts, and coupling agent (N-hydroxysuccinimide) 5 parts.

[0062] (2) After stirring, the pretreated mixture was placed in a twin-screw extruder with 35 parts of a dust-proof agent (calcium stearate), 20 parts of an anti-fouling agent (perfluorooctyltriethoxysilane particles with an average particle size of 20 nm), 10 parts of a dispersing agent (polyoxyethylene sorbitan fatty acid ester), and 20 parts of an antioxidant (triphenyl phosphate). The L / D of the twin-screw extruder was 44:1. After preheating for 4 min, melt extrusion was performed. The temperature of each zone of the twin-screw extruder was as follows: the feeding zone was 110°C, the pre-melting zone was 135°C, the first melting zone was 175°C, the first high-temperature shearing zone was 200°C, the second high-temperature shearing zone was 220°C, the second melting zone was 235°C, the die zone was 250°C, and the melt zone at the discharge port was 255°C. The screw rotation speed was 320 rpm, the pressure was 28 MPa, and the time was 180 min. Then, vacuumization and air cooling were performed for cooling for 15 min, and the pellets were cut to obtain pellets with a length of 6 mm. Finally, drying was performed at 90°C for 300 min to obtain the degradable antistatic dust-proof and anti-fouling master batch.

[0063] Comparative Example 1

[0064] The difference from Example 1 is that no high-energy ball milling and activation pretreatment is performed, and the raw materials are directly put into the extruder for melt extrusion, resulting in poor dispersibility and poor interfacial bonding.

[0065] Comparative Example 2

[0066] The difference from Example 1 is that no coupling agent is added, and only a dispersant is used for mixing, resulting in insufficient compatibility of the filled system, and the mechanical properties and antistatic properties of the product are significantly reduced.

[0067] Comparative Example 3

[0068] The difference from Example 1 is that the antistatic agent is replaced by a conventional small-molecule quaternary ammonium salt antistatic agent (such as hexadecyl trimethyl ammonium bromide), and the result is that its thermal stability is poor, the antistatic performance decays quickly, and the failure is serious in long-term use.

[0069] Comparative Example 4

[0070] The difference from Example 1 is that the matrix polymer is polypropylene instead of degradable polycaprolactone, and the result is that although it can be formed, the material is not degradable, which does not meet the green and environmental protection requirements.

[0071] Comparative Example 5

[0072] The difference from Example 1 is that the twin-screw extruder is replaced by a single-screw extruder, and because of insufficient mixing and dispersion, agglomeration in the filled system is serious, resulting in a significant decrease in the antistatic property and dustproof property of the material.

[0073] Performance Test

[0074] The filled masterbatch obtained in Examples 1-3 and Comparative Examples 1-5 is subjected to performance testing, and the test methods of various properties are as follows: the tensile strength is tested according to ASTM D-638, the bending strength is tested according to ASTM D-638, the bending modulus is tested according to ASTM D-790, the Izod notched impact strength is tested according to ASTM D-256, the antistatic property is tested according to GB / T 15738-2008, and the dustproof and stain resistance are judged according to the hydrophobic angle of DB44 / T 1232-2013.

[0075] The specific steps of the antistatic test are as follows: a representative sample is taken from the filled master batch batch, and the shape and size of the sample are ensured to meet the standard requirements. The sample should represent the overall quality of the filled master batch, and should be clean without obvious contamination or damage. Then the volume resistivity tester is prepared, the sample is placed in the test device, the contact between the sample and the electrode is ensured to be good and stable, a constant voltage is applied in the test device according to the standard requirements, after the voltage is applied, the resistance value between the samples is measured, and the volume resistivity of the filled master batch is calculated using the appropriate calculation formula according to the measured resistance value and the geometric size and shape of the sample. When performing the volume resistivity test, strictly follow the specific requirements in the <GB / T 15738-2008> standard, and ensure that the environmental conditions during the test are stable and the sample is handled correctly to ensure the accuracy and reliability of the test results.

[0076] The specific steps of the degradation test are as follows: a certain amount of filled master batch is weighed, a phosphate buffer solution (pH 7.40) is prepared, and the ratio of the volume (mL) of the buffer solution to the mass (g) of the filled master batch sample is 50:1. A certain amount of filled master batch is placed in a 20 mL buffer solution vial and sealed. The vial is placed in a constant temperature water bath at 70℃, the temperature of the water bath is maintained at 70±1℃, and then the degradation experiment is performed. The degradation time is 9d, and the degradation sample is taken once a day. After sampling, the filled master batch is rinsed 5 times with deionized water. The initial mass of the fiber sample before the degradation experiment is M1, the sample is taken out after the degradation is completed, rinsed 5 times with deionized water, the surface moisture is absorbed with filter paper and dried, and the final dried sample mass is M2. The mass loss rate is calculated using the following formula:

[0077] Mass loss rate = (M1-M2) ÷ M1

[0078] The test results of the above content are shown in Table 1.

[0079] Table 1 Performance test data of filled master batch obtained from Examples 1-3 and Comparative Examples 1-5

[0080]

[0081]

[0082] As can be seen from Table 1, as the content ratio of polycaprolactone increases, the degradation performance of the filled master batch gradually increases, which is manifested by the increasing mass loss rate; as the content of polypyrrole increases, the volume resistivity of the filled master batch decreases, and a lower volume resistivity usually means better conductivity and antistatic performance.

[0083] Although the above embodiments have been described in detail, it should be understood that these are only some embodiments of the present application but not all the embodiments. Other embodiments can be obtained on the basis of the above embodiments without creativity, and these embodiments all belong to the protection scope of the present application.

Claims

1. A degradable antistatic, dustproof and stain resistant filler master batch, characterized in that, The raw materials include the following in mass parts:

2. The degradable antistatic, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The degradable polymer includes one or more of polycaprolactone, polypropylene carbonate, polybutylene succinate and polyhydroxyalkanoate.

3. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The antistatic agent includes one or more of polypyrrole, polythiophene and polyacetylene.

4. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The coupling agent is an active ester coupling agent.

5. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The dustproof agent is calcium stearate.

6. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The dispersant is a polymeric dispersant.

7. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The anti-fouling agent is a fluorosilane.

8. The degradable anti-static, anti-dust and anti-fouling filler master batch according to claim 1, characterized in that, The antioxidant is a phosphate antioxidant.

9. A process for the preparation of the degradable antistatic, dust- and stain- repellent, filled masterbatch according to any one of claims 1 to 8, characterized in that, The method includes the following steps: The degradable polymer, the antistatic agent and the coupling agent are mixed for activation pretreatment to obtain a pretreated mixture; The pretreated mixture, the dustproof agent, the anti-fouling agent, the dispersant and the antioxidant are mixed for melt extrusion to obtain the degradable antistatic dustproof anti-fouling filler master batch.

10. Use of the degradable antistatic dustproof anti-fouling filler master batch of any one of claims 1-8 or prepared by the preparation method of claim 9 in plastic products.

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