CN110980043A - Garbage can - Google Patents

Abstract

The invention provides a garbage can which comprises a garbage can body, wherein an anti-sticking layer covers the surface of the garbage can body. The anti-sticking layer is prepared from the following raw materials: the garbage can comprises polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent, wherein 97-99 parts of right-handed polylactic acid, 1-3 parts of left-handed polylactic acid, 5-55 parts of vinyl acetate, 1-3 parts of calcium carbonate, 2-6 parts of a chain extender, 1-5 parts of a toughening agent, dextrorotatory lactide, an initiator and a catalyst are arranged on the surface of the garbage can, an anti-sticking layer prepared from the raw materials is arranged on the surface of the garbage can, garbage cannot stick to the garbage can, and a user can wipe the garbage can clean the garbage can only by wiping the garbage can with a common rag or other tools.

Description

Garbage can

Technical Field

The invention belongs to the technical field of articles for daily use, and relates to a garbage can.

Background

The garbage can is used as a necessary living facility and is distributed throughout thousands of households, streets and alleys, so that people can conveniently live, but the garbage can is always filled with garbage, the surface and the interior of the garbage can are full of dirt, people can vomit after the people look at the garbage can, and no people are willing to clean the garbage can because the dirt stuck on the surface and the interior of the garbage can is inconvenient to clean, and the garbage can is difficult to clean unless special cleaning products are used, so that the garbage can convenient to clean is required to be provided.

Disclosure of Invention

The invention aims to provide a garbage can, and solves the problem that the garbage can is inconvenient to clean in the prior art.

The technical scheme adopted by the invention is that,

a garbage can comprises a garbage can body, and an anti-sticking layer covers the surface of the garbage can body.

The anti-sticking layer is prepared according to the following steps:

firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid;

thirdly, respectively weighing 20-30 parts of the mixture a prepared in the first step, 97-99 parts of the right-handed polylactic acid prepared in the second step, 1-3 parts of the left-handed polylactic acid, 5-55 parts of vinyl acetate, 1-3 parts of calcium carbonate, 2-6 parts of a chain extender and 1-5 parts of a toughening agent according to mass fraction, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

step five, mixing 10-20 parts of talcum powder with the master batch obtained in the step four to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

In the second step, the mass ratio of the initiator to the dextrorotatory lactide is 7-9: 1000, and the dosage of the catalyst is 0.5-0.7% of the mass of the dextrorotatory lactide.

The initiator is isopropanol, the catalyst is aluminum isopropoxide, and the solvent is dichloromethane.

The reaction temperature is 130-140 ℃.

The anti-sticking garbage can has the beneficial effects that the anti-sticking layer is arranged on the surface of the garbage can, so that garbage cannot be stuck on the garbage can, and a user can wipe the garbage can clean the garbage can only by wiping the garbage can with common rag or other tools.

Detailed Description

The present invention will be described in detail with reference to the following embodiments.

The invention provides a garbage can which comprises a garbage can body, wherein an anti-sticking layer covers the surface of the garbage can body.

The anti-sticking layer is prepared according to the following steps:

firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid; the mass ratio of the initiator to the dextrorotatory lactide is 7-9: 1000, the dosage of the catalyst is 0.5-0.7% of the mass of the dextrorotatory lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, and the solvent is dichloromethane. The reaction temperature is 130-140 ℃.

Thirdly, respectively weighing 20-30 parts of the mixture a prepared in the first step, 97-99 parts of the right-handed polylactic acid prepared in the second step, 1-3 parts of the left-handed polylactic acid, 5-55 parts of vinyl acetate, 1-3 parts of calcium carbonate, 2-6 parts of a chain extender and 1-5 parts of a toughening agent according to mass fraction, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

step five, mixing 10-20 parts of talcum powder with the master batch obtained in the step four to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

Example 1

Firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid; the mass ratio of the initiator to the dextro-lactide is 7:1000, the dosage of the catalyst is 0.5 percent of the mass of the dextro-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, and the solvent is dichloromethane. The reaction temperature was 130 ℃.

Thirdly, respectively weighing 20 parts of the mixture a prepared in the first step, 97 parts of right-handed polylactic acid, 1 part of left-handed polylactic acid, 5 parts of vinyl acetate, 1 part of calcium carbonate, 2 parts of chain extender and 1 part of flexibilizer according to mass fraction, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

step five, 10 parts of talcum powder are taken and mixed with the master batch obtained in the step four to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

Example 2

Firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid; the mass ratio of the initiator to the dextro-lactide is 9:1000, the dosage of the catalyst is 0.7 percent of the mass of the dextro-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, and the solvent is dichloromethane. The reaction temperature was 140 ℃.

Thirdly, respectively weighing 30 parts of the mixture a prepared in the first step, 99 parts of the right-handed polylactic acid, 3 parts of the left-handed polylactic acid, 55 parts of vinyl acetate, 3 parts of calcium carbonate, 6 parts of a chain extender and 5 parts of a toughening agent according to the mass fraction, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

fifthly, taking 20 parts of talcum powder, and mixing the talcum powder with the master batch obtained in the fourth step to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

Example 3

Firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid; the mass ratio of the initiator to the dextro-lactide is 8:1000, the dosage of the catalyst is 0.6 percent of the mass of the dextro-lactide, the initiator is isopropanol, the catalyst is aluminum isopropoxide, and the solvent is dichloromethane. The reaction temperature was 135 ℃.

Thirdly, respectively weighing 25 parts of the mixture a prepared in the first step, 98 parts of right-handed polylactic acid, 2 parts of left-handed polylactic acid, 30 parts of vinyl acetate, 2 parts of calcium carbonate, 4 parts of chain extender and 3 parts of flexibilizer according to mass fractions, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

fifthly, taking 15 parts of talcum powder, and mixing the talcum powder with the master batch obtained in the fourth step to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

Claims (5)

1. The garbage can is characterized by comprising a garbage can body, wherein an anti-sticking layer covers the surface of the garbage can body.

2. A trash can as in claim 1 wherein the release layer is prepared by the steps of:

firstly, uniformly mixing polytetrafluoroethylene powder resin, a dispersing agent and a specific extrusion auxiliary agent (kneading agent) in proportion, processing at high temperature, and extruding under high pressure to obtain a mixture a;

secondly, sequentially adding the dextro-lactide, an initiator and a catalyst into a solvent at a high temperature, and reacting to prepare dextro-polylactic acid;

thirdly, respectively weighing 20-30 parts of the mixture a prepared in the first step, 97-99 parts of the right-handed polylactic acid prepared in the second step, 1-3 parts of the left-handed polylactic acid, 5-55 parts of vinyl acetate, 1-3 parts of calcium carbonate, 2-6 parts of a chain extender and 1-5 parts of a toughening agent according to mass fraction, and uniformly mixing to obtain a mixture b;

step four, putting the mixture b obtained in the step three into a double-screw extruder, extruding and granulating to obtain master batches;

step five, mixing 10-20 parts of talcum powder with the master batch obtained in the step four to obtain a precursor;

sixthly, putting the precursor obtained in the fifth step into a double-screw extruder, and extruding to obtain an anti-sticking coating material;

and seventhly, smearing the anti-sticking coating material obtained in the sixth step on the surface of the garbage can body to obtain the target garbage can with the anti-sticking function.

3. The trash can of claim 2, wherein in the second step, the mass ratio of the initiator to the D-lactide is 7-9: 1000, and the amount of the catalyst is 0.5-0.7% of the mass of the D-lactide.

4. A trashcan as claimed in claim 3 wherein the initiator is isopropyl alcohol, the catalyst is aluminum isopropoxide and the solvent is methylene chloride.

5. A bin as claimed in claim 3, wherein the reaction temperature is 130 ℃ to 140 ℃.