Impact-resistant polymer floor and preparation method thereof

Abstract

The invention relates to the technical field of polymer floors, and discloses an impact-resistant polymer floor and a preparation method thereof, and the impact-resistant polymer floor is prepared from the following components: polyvinyl chloride resin, a copolymerization modifier, stearate, a filler, calcium carbonate powder, a plasticizer, an antioxidant, ABS resin and polyethylene wax. The polymer floor prepared by the invention has excellent mechanical properties and can be applied to most occasions. The impact resistance of the polyvinyl chloride resin can be effectively improved by introducing the copolymerization modifier, so that the polyvinyl chloride resin is not easily broken or damaged when being impacted by external force, and the impact resistance of the polymer floor is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer floors, and particularly to an impact-resistant polymer floor and a preparation method thereof. Background Art

[0002] Polymer floors, this innovative floor material, are increasingly widely used. Polymer floors are made of polymer materials. Polymer materials are composed of high-molecular compounds with relatively high molecular weights. The molecular weights of these compounds range from several thousand to several hundred thousand or even millions, so they have characteristics such as high strength, high toughness, and high elasticity. Polymer floors are mainly made by mixing a network-connected polymer resin and natural and environmentally friendly calcium powder through a certain process and then hot-pressing at high temperature.

[0003] Polymer floors are widely used in various places due to their excellent performance and diverse designs. Whether it is home decoration or commercial places (such as hospitals, schools, office buildings, shopping malls, supermarkets, etc.), or even various factory workshops and special environments such as dust-free workshops and clean workshops with higher requirements, and laboratories, polymer floors can all adapt well.

[0004] With the continuous improvement of the requirements for the environmental protection performance of building materials in the domestic market and the increasing pursuit of the quality of life by people, the performance requirements for polymer floors are also getting higher and higher.

[0005] Based on this, we have proposed an impact-resistant polymer floor, hoping to solve the deficiencies in the existing technology. Summary of the Invention

[0006] (I) Technical Problems to be Solved

[0007] In view of the deficiencies of the existing technology, the present invention provides an impact-resistant polymer floor and a preparation method thereof.

[0008] (II) Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] An impact-resistant polymer floor is made of the following components by weight: 72-96 parts of polyvinyl chloride resin, 12-16 parts of copolymer modification agent, 2-3 parts of stearate, 22-25 parts of filler, 10-14 parts of calcium carbonate powder, 3-5 parts of plasticizer, 1-1.2 parts of antioxidant, 5-8 parts of ABS resin, 1.2-1.5 parts of polyethylene wax;

[0011] The mixing mass ratio of the polyvinyl chloride resin to the copolymer modification agent is 6:1.

[0012] As a further technical solution, the preparation method of the copolymer modification agent is:

[0013] (1) First, add 1-hexene and maleic anhydride to an organic solvent respectively, stir and mix evenly to obtain a mixed dispersion;

[0014] (2) Add an initiator to an organic solvent, stir and mix evenly to obtain an initiator solution;

[0015] (3) Add the mixed dispersion to a reaction kettle, and then introduce an inert gas into the reaction kettle to remove the air in the reaction kettle;

[0016] (4) Adjust the temperature in the reaction kettle to 75 °C and keep it warm for 20 min;

[0017] (5) Dropwise add the initiator solution into the reaction kettle and stir;

[0018] The volume ratio of the mixed dispersion to the initiator solution is 1:1;

[0019] Among them, the dropping time of the initiator solution is 2 hours. After the dropping is completed, continue to stir for 10 hours;

[0020] (6) After the reaction is completed, perform high-speed centrifugation for 20 min, and then filter to retain the precipitate;

[0021] The high-speed centrifugation speed is 8000 r / min;

[0022] (7) Wash and dry the reaction precipitate obtained above to obtain a copolymerization modifier;

[0023] The drying temperature is 50 °C and the time is 20 hours.

[0024] As a further technical solution, the molar ratio of 1-hexene to maleic anhydride in step (1) is 1:1;

[0025] The mixing ratio of 1-hexene to the organic solvent is 1.5 g:50 mL;

[0026] The organic solvent is xylene.

[0027] As a further technical solution: the mixing ratio of the initiator to the organic solvent in step (2) is 0.1 g:30 L;

[0028] The initiator is N,N'-azobisisobutyronitrile.

[0029] As a further technical solution: the inert gas in step (3) is nitrogen.

[0030] As a further technical solution, the stearate is sodium stearate;

[0031] The plasticizer is triethyl orthophthalate.

[0032] As a further technical solution, the filler is nano-bentonite;

[0033] The antioxidant is antioxidant 1010.

[0034] A preparation method of an impact-resistant polymer floor, comprising:

[0035] S1 Weigh by parts by weight:

[0036] Polyvinyl chloride resin, copolymer modification agent, stearate, filler, calcium carbonate powder, plasticizer, antioxidant, ABS resin, polyethylene wax;

[0037] S2 Add the above components to a mixer in sequence and stir at a speed of 800 r / min for 30 min to obtain a uniformly mixed component;

[0038] S3 Add the uniformly mixed component to a twin-screw extruder for melt extrusion;

[0039] S4 Send the extruded material to a mold at a temperature of 180 °C, extrude the die lip, cool and press it through a sizing table for shaping, and a floor finished product is obtained by pulling and cutting by a tractor;

[0040] The sizing and cooling temperature is 20 °C.

[0041] (III) Beneficial effects

[0042] Compared with the prior art, the present invention provides an impact-resistant polymer floor, having the following beneficial effects:

[0043] The polymer floor prepared by the present invention has excellent mechanical properties and can be applied to most occasions.

[0044] The copolymer modification agent introduced by the present invention can effectively improve the impact resistance of the polyvinyl chloride resin, so that when facing external force impact, it will no longer break or be damaged easily, thus greatly improving the impact resistance of the polymer floor.

[0045] When the copolymer modification agent and the polyvinyl chloride resin are mutually fused, a series of complex physical and chemical changes will occur between them. The copolymer modification agent molecules will form a special structure in the polyvinyl chloride resin matrix, and this structure can absorb and disperse the impact energy, thereby greatly reducing the impact stress received by the polymer floor, and further avoiding the damage caused by the polymer floor.

[0046] By significantly improving the impact performance of the polymer floor, this not only broadens the application field of the polymer floor, enabling it to play a role in more occasions, but also improves the quality and reliability of the product.

[0047] Through the interaction of copolymerization modifiers, fillers, etc., the wear resistance of polymer floors can be significantly improved, thereby extending the service life of polymer floors.

[0048] Since polyvinyl chloride resin is prone to oxidative degradation under the influence of factors such as light, heat, and oxygen during use, resulting in a decline in the performance of the polymer floors made, therefore, through the combined action of copolymerization modifiers and antioxidants in the present invention, these free radicals can be effectively captured and removed, thereby interrupting the chain reaction and preventing the breaking and degradation of polymer molecular chains. This mechanism of action significantly improves the antioxidant capacity of polyvinyl chloride resin and extends the service life of polymer floors. Specific embodiments

[0049] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] Example 1

[0051] A preparation method of an impact-resistant polymer floor, comprising:

[0052] S1 Weigh by weight:

[0053] 72 parts of polyvinyl chloride resin, 12 parts of copolymerization modifier, 2 parts of sodium stearate, 22 parts of nano-bentonite, 10 parts of calcium carbonate powder, 3 parts of triethyl o-phthalate, 1 part of antioxidant 1010, 5 parts of ABS resin, 1.2 parts of polyethylene wax;

[0054] The mixing mass ratio of the polyvinyl chloride resin and the copolymerization modifier is 6:1.

[0055] The preparation method of the copolymerization modifier is:

[0056] (1) First, add 1-hexene and maleic anhydride to an organic solvent respectively, stir and mix evenly to obtain a mixed dispersion;

[0057] Among them, the molar ratio of 1-hexene to maleic anhydride is 1:1;

[0058] The mixing ratio of 1-hexene and the organic solvent is 1.5 g: 50 mL;

[0059] The organic solvent is xylene;

[0060] (2) Add the initiator to the organic solvent, stir and mix evenly to obtain an initiator solution;

[0061] The mixing ratio of the initiator to the organic solvent is 0.1 g: 30 L;

[0062] The initiator is N,N'-azobisisobutyronitrile;

[0063] (3) Add the mixed dispersion to the reaction kettle, and then introduce an inert gas into the reaction kettle to remove the air in the reaction kettle;

[0064] The inert gas is nitrogen;

[0065] (4) Adjust the temperature in the reaction kettle to 75 °C and keep it warm for 20 min;

[0066] (5) Dropwise add the initiator solution into the reaction kettle and stir;

[0067] The volume ratio of the mixed dispersion to the initiator solution is 1:1;

[0068] Among them, the dropping time of the initiator solution is 2 hours. After the dropping is completed, continue to stir for 10 hours;

[0069] (6) After the reaction is completed, perform high-speed centrifugation for 20 min, and then filter to retain the precipitate;

[0070] The high-speed centrifugation speed is 8000 r / min;

[0071] (7) Wash and dry the reaction precipitate obtained above to obtain a copolymerization modifier;

[0072] The drying temperature is 50 °C and the time is 20 hours.

[0073] S2 Add the above components to the mixer in sequence and stir at a speed of 800 r / min for 30 min to obtain a uniformly mixed component;

[0074] S3 Add the uniformly mixed component to a twin-screw extruder for melt extrusion;

[0075] S4 Send the extruded material to a mold at a temperature of 180 °C, extrude through the die lip, cool and press for shaping via a sizing table, and cut and form with a tractor to obtain a finished floor product;

[0076] The shaping and cooling temperature is 20 °C.

[0077] Example 2

[0078] A method for preparing an impact-resistant polymer floor, comprising:

[0079] S1 Weigh by weight:

[0080] 78 parts of polyvinyl chloride resin, 13 parts of copolymer modification agent, 2.5 parts of sodium stearate, 23 parts of nano bentonite, 12 parts of calcium carbonate powder, 3.5 parts of triethyl phthalate, 1.1 parts of antioxidant 1010, 6 parts of ABS resin, 1.3 parts of polyethylene wax;

[0081] The mixing mass ratio of the polyvinyl chloride resin to the copolymer modification agent is 6:1.

[0082] The preparation method of the copolymer modification agent is as follows:

[0083] (1) First, add 1-hexene and maleic anhydride to an organic solvent respectively, stir and mix evenly to obtain a mixed dispersion;

[0084] Among them, the molar ratio of 1-hexene to maleic anhydride is 1:1;

[0085] The mixing ratio of 1-hexene to the organic solvent is 1.5 g: 50 mL;

[0086] The organic solvent is xylene;

[0087] (2) Add the initiator to the organic solvent, stir and mix evenly to obtain an initiator solution;

[0088] The mixing ratio of the initiator to the organic solvent is 0.1 g: 30 L;

[0089] The initiator is N,N'-azobisisobutyronitrile;

[0090] (3) Add the mixed dispersion to the reaction kettle, and then introduce an inert gas into the reaction kettle to remove the air in the reaction kettle;

[0091] The inert gas is nitrogen;

[0092] (4) Adjust the temperature in the reaction kettle to 75 °C and keep it warm for 20 min;

[0093] (5) Dropwise add the initiator solution into the reaction kettle and stir;

[0094] The volume ratio of the mixed dispersion to the initiator solution is 1:1;

[0095] Among them, the dropping time of the initiator solution is 2 hours. After the dropping is completed, continue to stir for 10 hours;

[0096] (6) After the reaction is completed, perform high-speed centrifugation for 20 min, and then filter to retain the precipitate;

[0097] The high-speed centrifugation speed is 8000 r / min;

[0098] (7) Wash and dry the reaction precipitate obtained above to obtain the copolymer modification agent;

[0099] The drying temperature is 50 °C and the time is 20 hours.

[0100] S2 Add the above components to the blender in sequence, and stir at a speed of 800 r / min for 30 min to obtain a uniformly mixed component;

[0101] S3 Add the uniformly mixed component to a twin-screw extruder for melt extrusion;

[0102] S4 Send the extruded material to a mold at a temperature of 180 °C, extrude through the die lip, cool and press it through a sizing table, and pull it out by a tractor for cutting and forming to obtain the finished floor;

[0103] The sizing and cooling temperature is 20 °C.

[0104] Example 3

[0105] A preparation method of an impact-resistant polymer floor, comprising:

[0106] S1 Weigh by parts by weight:

[0107] 84 parts of polyvinyl chloride resin, 14 parts of copolymerization modifier, 2.2 parts of sodium stearate, 24 parts of nano-bentonite, 12 parts of calcium carbonate powder, 4 parts of triethyl phthalate, 1.2 parts of antioxidant 1010, 6 parts of ABS resin, 1.3 parts of polyethylene wax;

[0108] The mixing mass ratio of the polyvinyl chloride resin to the copolymerization modifier is 6:1.

[0109] The preparation method of the copolymerization modifier is:

[0110] (1) First, add 1-hexene and maleic anhydride to an organic solvent respectively, stir and mix evenly to obtain a mixed dispersion;

[0111] Among them, the molar ratio of 1-hexene to maleic anhydride is 1:1;

[0112] The mixing ratio of 1-hexene to the organic solvent is 1.5 g: 50 mL;

[0113] The organic solvent is xylene;

[0114] (2) Add the initiator to the organic solvent, stir and mix evenly to obtain an initiator solution;

[0115] The mixing ratio of the initiator to the organic solvent is 0.1 g: 30 L;

[0116] The initiator is N,N'-azobisisobutyronitrile;

[0117] (3) Add the mixed dispersion to the reaction kettle, and then introduce an inert gas into the reaction kettle to remove the air in the reaction kettle;

[0118] The inert gas is nitrogen;

[0119] (4) Adjust the temperature in the reaction kettle to 75 °C and keep it warm for 20 min;

[0120] (5) Dropwise add the initiator solution into the reaction kettle and stir;

[0121] The volume ratio of the mixed dispersion to the initiator solution is 1:1;

[0122] Among them, the dropping time of the initiator solution is 2 hours. After the dropping is completed, continue to stir for 10 hours;

[0123] (6) After the reaction is completed, perform high-speed centrifugation for 20 min, then filter, and keep the precipitate;

[0124] The high-speed centrifugation speed is 8000 r / min;

[0125] (7) Wash and dry the reaction precipitate obtained above to obtain a copolymerization modifier;

[0126] The drying temperature is 50 °C and the time is 20 hours.

[0127] S2 Add the above components to the mixer in sequence and stir at a speed of 800 r / min for 30 min to obtain a uniformly mixed component;

[0128] S3 Add the uniformly mixed component to a twin-screw extruder for melt extrusion;

[0129] S4 Send the extruded material to a mold at a temperature of 180 °C, extrude through the die lip, cool and press it through a sizing table for shaping, and the tractor removes and cuts it to obtain the finished floor;

[0130] The sizing and cooling temperature is 20 °C.

[0131] Example 4

[0132] A preparation method of an impact-resistant polymer floor, comprising:

[0133] S1 Weigh by weight:

[0134] 96 parts of polyvinyl chloride resin, 16 parts of copolymerization modifier, 3 parts of sodium stearate, 25 parts of nano-bentonite, 14 parts of calcium carbonate powder, 5 parts of triethyl phthalate, 1.2 parts of antioxidant 1010, 8 parts of ABS resin, 1.5 parts of polyethylene wax;

[0135] The mixing mass ratio of the polyvinyl chloride resin to the copolymerization modifier is 6:1.

[0136] The preparation method of the copolymerization modifier is:

[0137] (1) First, add 1-hexene and maleic anhydride to an organic solvent respectively, stir and mix evenly to obtain a mixed dispersion;

[0138] Among them, the molar ratio of 1-hexene to maleic anhydride is 1:1;

[0139] The mixing ratio of 1-hexene to the organic solvent is 1.5 g:50 mL;

[0140] The organic solvent is xylene;

[0141] (2) Add the initiator to the organic solvent, stir and mix evenly to obtain an initiator solution;

[0142] The mixing ratio of the initiator to the organic solvent is 0.1 g:30 L;

[0143] The initiator is N,N'-azobisisobutyronitrile;

[0144] (3) Add the mixed dispersion to the reaction kettle, and then introduce an inert gas into the reaction kettle to remove the air in the reaction kettle;

[0145] The inert gas is nitrogen;

[0146] (4) Adjust the temperature in the reaction kettle to 75 °C and keep it warm for 20 min;

[0147] (5) Dropwise add the initiator solution into the reaction kettle and stir;

[0148] The volume ratio of the mixed dispersion to the initiator solution is 1:1;

[0149] Among them, the dropping time of the initiator solution is 2 hours. After the dropping is completed, continue to stir for 10 hours;

[0150] (6) After the reaction is completed, perform high-speed centrifugation for 20 min, and then filter to retain the precipitate;

[0151] The high-speed centrifugation speed is 8000 r / min;

[0152] (7) Wash and dry the reaction precipitate obtained above to obtain a copolymerization modifier;

[0153] The drying temperature is 50 °C and the time is 20 hours.

[0154] S2 Add the above components to the blender in sequence, stir at a speed of 800 r / min for 30 min to obtain a uniformly mixed component;

[0155] S3 Add the uniformly mixed component to a twin-screw extruder for melt extrusion;

[0156] S4 sends the extruded material to a mold at 180°C, extrudes it through the die lip, cools and presses it through a sizing table for shaping, and the tractor removes and cuts it to form the finished floor product.

[0157] The sizing and cooling temperature is 20°C.

[0158] The following are comparative examples:

[0159] Comparative Example 1:

[0160] Based on Example 1, the copolymerization modifier is not added, and the rest of the technical solutions are the same as those of Example 1.

[0161] Test:

[0162] The floor specimens of the same size and specification obtained from the examples and comparative examples are tested as follows: The notched impact strength is tested in accordance with GB / T 1843-1996;

[0163] Table 1

[0164] <![CDATA[Notched impact strength kJ / m 2 > Example 1 19.4 Example 2 18.8 Example 3 19.0 Example 4 19.6 Comparative Example 1 12.4

[0165] As can be seen from Table 1, the polymer floor prepared by the present invention has excellent impact resistance.

[0166] The tensile strength of the specimens of the examples and comparative examples is tested;

[0167] The tensile strength is tested in accordance with GB / T 1040-2006;

[0168] Table 2

[0169]

[0170]

[0171] As can be seen from Table 2, the polymer floor prepared by the present invention has high tensile properties.

[0172] The flexural strength of the specimens of the examples and comparative examples is tested;

[0173] The flexural strength is tested in accordance with GB / T 9341-2000;

[0174] Table 3

[0175] Bending strength MPa Example 1 85.3 Example 2 86.2 Example 3 86.0 Example 4 85.7 Comparative Example 1 70.6

[0176] As can be seen from Table 3, the polymer floor prepared by the present invention has excellent flexural strength.

[0177] The wear resistance of the specimens of the examples and comparative examples is tested;

[0178] Surface Abrasion Resistance Test Standard GB / T 24508-2009

[0179] Table 4

[0180]

[0181]

[0182] As can be seen from Table 4, through the combined action of each component, the wear resistance of the polymer floor can be greatly improved.

[0183] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant polymer floor, characterized in that: The following ingredients are included by weight: 72-96 parts of polyvinyl chloride resin, 12-16 parts of copolymer modifier, 2-3 parts of stearate, 22-25 parts of filler, 10-14 parts of calcium carbonate powder, 3-5 parts of plasticizer, 1-1.2 parts of antioxidant, 5-8 parts of ABS resin, and 1.2-1.5 parts of polyethylene wax; The mixing mass ratio of the polyvinyl chloride resin to the copolymer modifier is 6:

1.

2. The impact-resistant polymer floor according to claim 1, characterized in that: The preparation method of the copolymerization modifier is: (1) First, 1-hexene and maleic anhydride are added to an organic solvent respectively, and stirred to mix uniformly to obtain a mixed dispersion; (2) adding an initiator to an organic solvent, stirring and mixing the mixture to obtain an initiator solution; (3) adding the mixed dispersion into a reactor, and then introducing an inert gas into the reactor to remove the air in the reactor; (4) Adjust the temperature in the reactor to 75°C and keep it warm for 20 minutes; (5) adding an initiator solution dropwise into the reaction vessel and stirring; The volume ratio of the mixed dispersion to the initiator solution is 1:1; The initiator solution was added dropwise for 2 hours, and after the addition was completed, stirring was continued for 10 hours; (6) After the reaction is completed, the mixture is centrifuged at high speed for 20 min and then filtered to retain the precipitate; High-speed centrifugal speed is 8000r / min; (7) washing and drying the reaction precipitate obtained above to obtain a copolymer modifier; The drying temperature was 50°C and the drying time was 20 hours.

3. The impact-resistant polymer floor according to claim 2, characterized in that: In step (1), the molar ratio of 1-hexene to maleic anhydride is 1:1; The mixing ratio of 1-hexene and organic solvent is 1.5g:50mL; The organic solvent is xylene.

4. The impact-resistant polymer floor according to claim 2, characterized in that: In step (2), the mixing ratio of the initiator to the organic solvent is 0.1 g:30 L; The initiator is N,N-azobisisobutyronitrile.

5. The impact-resistant polymer floor according to claim 2, characterized in that: The inert gas in step (3) is nitrogen.

6. The impact-resistant polymer floor according to claim 1, characterized in that: The stearate is sodium stearate; The plasticizer is triethyl o-benzenedicarboxylate.

7. The impact-resistant polymer floor according to claim 1, characterized in that: The filler is nano bentonite; The antioxidant is antioxidant 1010.

8. The method for preparing an impact-resistant polymer floor according to claim 1, characterized in that: include: S1 is weighed by weight: Polyvinyl chloride resin, copolymer modifier, stearate, filler, calcium carbonate powder, plasticizer, antioxidant, ABS resin, polyethylene wax; S2: adding the above components into the mixer in sequence, stirring at a speed of 800 r / min for 30 min to obtain uniformly mixed components; S3 adds the uniformly mixed components into a twin-screw extruder for melt extrusion; S4 delivers the extruded material to a mold with a temperature of 180°C, extrudes the die lip, cools and presses the material on a shaping table, and then the traction machine moves the material out for cutting and shaping to obtain a finished floor product; The cooling temperature is 20℃.

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