A gradient flame-retardant vitrified plastic

Abstract

A gradient flame-retardant glass plastic relates to a fireproof plastic, wherein the self-extinguishing plastic is formulated by mass ratio as follows: 100 parts of plastic raw material; 50 parts of gradient flame retardant; 100 parts of glass former; 1-3 parts of silane coupling agent; the plastic raw material, gradient flame retardant, glass former and silane coupling agent are mixed according to the formula, and granulated or made into products after mixing. The present invention prepares a fireproof self-extinguishing plastic by mixing plastic raw material, gradient flame retardant, glass former and silane coupling agent, which is used in products such as building materials and cables.

Description

Technical Field

[0001] The invention relates to a flame retardant plastic, in particular to a gradient flame retardant vitrified plastic. Background Art

[0002] With the rapid growth of urban population, high-rise buildings, hotels, large supermarkets, hospitals, stations, and airports are constantly increasing. Subways, tunnels, large public entertainment venues, and public transportation facilities are also increasing rapidly. The importance of fire safety has become prominent; especially how to ensure home safety and smooth electricity and communications within a certain period of time in the event of a fire, to maximize the gain of precious time, and to reduce casualties and the loss of life and property, is a topic that people are constantly exploring.

[0003] The hazards of smoke and toxicity produced in fire mainly include toxicity, light reduction, horror, smoke damage, and environmental pollution. The hazards of dripping after burning plastics are manifested in further expanding the fire danger and making rescue more difficult.

[0004] Therefore, it is very important to introduce self-extinguishing fire protection technology into plastics to reduce the hazards of smoke, dripping and plastic burning. Self-extinguishing plastics can automatically extinguish the burning plastics, which will minimize the danger in the home. Summary of the invention

[0005] The purpose of the present invention is to provide a gradient flame retardant glass plastic. The present invention mixes plastic, silane coupling agent, gradient flame retardant and glass former to make fireproof self-extinguishing plastic, so that the burning plastic is self-extinguishing, reducing fire hazards. It is suitable for products such as building materials and cables.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A gradient flame retardant vitrified plastic, wherein the gradient flame retardant vitrified plastic has a formula of:

[0008] 100 parts of plastic raw materials;

[0009] 50 parts of gradient flame retardant;

[0010] 100 parts of glass former;

[0011] 1-3 parts of silane coupling agent;

[0012] The plastic raw materials, gradient flame retardant, glass former and silane coupling agent are mixed according to the formula, and then granulated or made into products after mixing.

[0013] The gradient flame-retardant vitrified plastic comprises EVA, polyolefin, ABS, PE, PVC, PS and PMMA.

[0014] The self-extinguishing plastic, wherein the gradient flame retardant is Mg(OH) with a purity greater than 90.0% and a particle size of 100 mesh-10 nanometers. 2 +MgCO 3 or CaCO 3 Combined endothermic gradient material, wherein the mass ratio of Mg(OH) 2 :MgCO 3 or CaCO 3 =3:1.

[0015] The self-extinguishing plastic, the mass chemical composition of the glass forming body is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4

[0016] The advantages and effects of the present invention are:

[0017] The plastic product synthesized by the present invention has excellent self-extinguishing performance, can make burning plastic self-extinguishing, and reduce fire hazards. It can be used for building materials and cable materials, meeting the requirements of industrial mass production; the raw material source is wide and the price is low, which effectively reduces the comprehensive cost of flame-retardant plastics and is conducive to market application. Implementation

[0018] The present invention is described in detail below with reference to the embodiments.

[0019] Example 1

[0020] 100 parts of EVA, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the purity of gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio of Mg(OH) 2 :MgCO 3 =3:1, the mass ratio of the glass former is: Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an open mixer at 100℃ for 10-30 min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15-20 min, cut the samples, and test the performance.

[0021] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 8.2-9.1 38.2-50.1 infinity 36.8-38.4 The flame will automatically go out within 3-10 seconds after leaving the fire Example 2

[0022] 100 parts of ABS, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, and a mass ratio of Mg(OH) 2 :MgCO 3 =3:1, Mg(OH) 2 : CaCO 3 =3:1, the chemical composition ratio of glass formers is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an internal mixer at 140℃ for 10-30 min, then use a flat vulcanizer to press the sheets at a constant temperature of 170℃ for 15-20 min, cut the samples and test the performance.

[0023] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 7.3-8.5 40.0-44.0 infinity 37.0-38.5 The flame will automatically go out within 3-10 seconds after leaving the fire Example 3

[0024] 100 parts of PE, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the purity of gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio is Mg(OH) 2 :MgCO 3 =3:1, the chemical composition mass ratio of the glass former is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an open mixer at 130℃ for 10-30 min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15-20 min, cut the samples, and test the performance.

[0025] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 8.0-9.3 40.2-43.8 infinity 37.4-38.8 The flame will automatically go out within 3-10 seconds after leaving the fire Example 4

[0026] 100 parts of polyolefin, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, and a mass ratio of Mg(OH) 2 :MgCO 3 =3:1, the chemical composition mass ratio of the glass former is Na 2 O:CaO:Si 2 O: B 2 O 3=3:1:16:4, mix in an open mill at 120℃ for 10-30min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15~20 min, cut the samples, and test the performance.

[0027] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 8.5-9.2 40.0-48.0 infinity 38.0 The flame will automatically go out within 3-10 seconds after leaving the fire Example 5

[0028] 100 parts of PVC, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the purity of gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio is Mg(OH) 2 :MgCO 3 =3:1, the chemical composition ratio of glass formers is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an open mixer at 130℃ for 10-30 min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15-20 min, cut the samples, and test the performance.

[0029] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 8.1-9.0 40.3-45.9 infinity 37.3-38.4 The flame will automatically go out within 3-10 seconds after leaving the fire Example 6

[0030] PS 100 parts, gradient flame retardant 50 parts, glass former 100 parts, silane coupling agent 1-3 parts, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, and a mass ratio of Mg(OH) 2 :MgCO 3 =3:1, the chemical composition ratio of glass formers is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an open mixer at 100℃ for 10-30 min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15-20 min, cut the samples, and test the performance.

[0031] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 8.6-9.1 40.1-48.3 infinity 35.0-38.4 The flame will automatically go out within 3-10 seconds after leaving the fire Example 7

[0032] 100 parts of PMMA, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, and a mass ratio of Mg(OH) 2 :MgCO 3 =3:1, the chemical composition ratio of glass formers is Na 2 O:CaO:Si 2 O: B 2 O 3 =3:1:16:4, mix in an open mixer at 100℃ for 10-30 min, discharge after mixing, pass through a double-cone feeding system to a twin-screw extruder, and finally enter a single-screw extrusion granulation, then use a flat vulcanizer to press the tablets at a constant temperature of 140-150℃ for 15-20 min, cut the samples, and test the performance.

[0033] performance Tensile strength / MPa Elongation at break / % Insulation resistance / MΩ Oxygen Index Combustion test Measured value 7.8-9.3 40.6-46.2 infinity 37.3-38.4 The flame will automatically go out within 3-10 seconds after leaving the fire .

Claims

1. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of EVA, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the purity of the gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio of Mg(OH)2:MgCO3 =3:1, and the mass ratio of the glass former is: Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 100°C for 10-30 min, and after the mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then a flat vulcanizer is used to press the sheet at a constant temperature of 140-150°C for 15-20 min to obtain a sample.

2. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of ABS, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, a mass ratio of Mg(OH)2:MgCO3 = 3:1, and the chemical composition ratio of the glass former is Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an internal mixer at 140°C for 10-30 min, and then pressed into a sheet using a flat vulcanizer at a constant temperature of 170°C for 15-20 min to obtain a sample.

3. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of PE, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, a mass ratio of Mg(OH)2:MgCO3 =3:1, and the chemical composition mass ratio of the glass former is Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 130°C for 10-30 min, and after the mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then a flat vulcanizer is used to press the sheet at a constant temperature of 140-150°C for 15-20 min to obtain a sample.

4. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of polyolefin, 50 parts of gradient flame retardant, 100 parts of glass former, 1-3 parts of silane coupling agent, wherein the purity of gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio of Mg(OH)2:MgCO3 =3:1, the chemical composition mass ratio of glass former is Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 120°C for 10-30 min, and after mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then a flat vulcanizer is used to press the sheet at a constant temperature of 140-150°C for 15-20 min to obtain a sample.

5. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of PVC, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the purity of the gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio of Mg(OH)2:MgCO3 =3:1, and the chemical composition ratio of the glass former is Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 130°C for 10-30 min, and after the mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then a flat vulcanizer is used to press the sheet at a constant temperature of 140-150°C for 15-20 min to obtain a sample.

6. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of PS, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the purity of the gradient flame retardant is greater than 90.0%, the particle size is 100 mesh-10 nanometers, the mass ratio of Mg(OH)2:MgCO3 =3:1, and the chemical composition ratio of the glass former is Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 100°C for 10-30 min, and after the mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then a flat vulcanizer is used to press the sheet at a constant temperature of 140-150°C for 15-20 min to obtain a sample.

7. A method for preparing a gradient flame-retardant vitrified plastic, characterized in that: The method is: 100 parts of PMMA, 50 parts of gradient flame retardant, 100 parts of glass former, and 1-3 parts of silane coupling agent, wherein the gradient flame retardant has a purity greater than 90.0%, a particle size of 100 mesh-10 nanometers, a mass ratio of Mg(OH)2:MgCO3=3:1, and a chemical composition ratio of the glass former of Na2O:CaO:SiO2:B2O3=3:1:16:4, are mixed in an open mill at 100°C for 10-30 min, and after mixing is completed, the material is discharged, passed through a double-cone feeding system to a twin-screw extruder, and finally enters a single-screw extrusion granulation, and then pressed into sheets at a constant temperature of 140-150°C for 15-20 min using a flat vulcanizer to obtain a sample.