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Solid-waste-based PVC (polyvinyl chloride) calendering film matrix high-temperature-resistant material and preparation method thereof

A calendered film and high-temperature-resistant technology, which is applied in the field of solid waste-based PVC calendered film substrate high-temperature-resistant materials and their preparation, can solve the problems of high price, lack of fiber characteristics, and large primary resource consumption, etc., to improve high-temperature resistance. Improvement of related performance and effect of weather resistance improvement

Active Publication Date: 2022-07-29
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the industry bottleneck of high price and large primary resource consumption in the production of PVC calendered film base materials by using titanium dioxide and active nano-calcium carbonate; the hardness, high temperature resistance, wear resistance and weather resistance of PVC calendered film base materials need to be improved; The conical vertical mill and the ordinary tire vertical mill can only process the material to a fineness of 450 mesh and a specific surface area of ​​500m 2 The technical limitation of / kg; the use of ball milling consumes high energy and the processed ultrafine powder forms a spherical shape, which does not have the deficiency of fiber characteristics

Method used

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  • Solid-waste-based PVC (polyvinyl chloride) calendering film matrix high-temperature-resistant material and preparation method thereof
  • Solid-waste-based PVC (polyvinyl chloride) calendering film matrix high-temperature-resistant material and preparation method thereof
  • Solid-waste-based PVC (polyvinyl chloride) calendering film matrix high-temperature-resistant material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0025]

[0026]

[0027] The general plastic is polyvinyl chloride.

[0028] The plasticizer is dioctyl phthalate.

[0029] The stabilizer is CT303TX liquid calcium zinc stabilizer.

[0030] The particle size of the titanium dioxide is 1.0 μm, and the rutile TiO 2 The mass content is 98%, the oil absorption is 20g / 100g, and the pH of the aqueous suspension is 9.

[0031] The coal gangue ultrafine powder is the coal gangue that is ground to 2500 mesh coal gangue ultrafine powder by the ultrafine tire vertical mill (also known as "ultrafine roller grinding"). The main chemical composition of the coal gangue: SiO 2 54.5%, Al 2 O 3 30.6%, Fe 2 O 3 5.63%, CaO 1.32%, MgO 1.41%, TiO 2 is 1.96%, K 2 O is 1.45%, Na 2 O was 0.39%, and the others were 2.74%.

[0032] The fly ash ultrafine powder is the fly ash that is ground to 2000 mesh by t...

Embodiment 2

[0035] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0036]

[0037] The general plastic is polyvinyl chloride.

[0038] The plasticizer is dioctyl phthalate.

[0039] The stabilizer is CT303TX liquid calcium zinc stabilizer.

[0040] The particle size of the titanium dioxide is 1.0 μm, and the rutile TiO 2 The mass content is 98%, the oil absorption is 20g / 100g, and the pH of the aqueous suspension is 6.

[0041] The coal gangue ultrafine powder is the coal gangue that is ground to 2500 mesh coal gangue ultrafine powder by the ultrafine tire vertical mill (also known as "ultrafine roller grinding"). The main chemical composition of the coal gangue: SiO 2 54.5%, Al 2 O 3 30.6%, Fe 2 O 3 5.63%, CaO 1.32%, MgO 1.41%, TiO 2 is 1.96%, K 2 O is 1.45%, Na 2 O was 0.39%, and the others were 2.74%.

[0042] The fly ash ultrafine powder is the fly ash that is ground to 2000 mesh by the ultrafine...

Embodiment 3

[0045] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0046]

[0047] The general plastic is polyvinyl chloride.

[0048] The plasticizer is dioctyl phthalate.

[0049] The stabilizer is CT303TX liquid calcium zinc stabilizer.

[0050] The particle size of the titanium dioxide is 1.0 μm, and the rutile TiO 2 The mass content is 98%, the oil absorption is 20g / 100g, and the pH of the aqueous suspension is 8.

[0051] The coal gangue ultrafine powder is the coal gangue that is ground to 2500 mesh coal gangue ultrafine powder by the ultrafine tire vertical mill (also known as "ultrafine roller grinding"). The main chemical composition of the coal gangue: SiO 2 54.5%, Al 2 O 3 30.6%, Fe 2 O 3 5.63%, CaO 1.32%, MgO 1.41%, TiO 2 is 1.96%, K 2 O is 1.45%, Na 2 O was 0.39%, and the others were 2.74%.

[0052] The fly ash ultrafine powder is the fly ash that is ground to 2000 mesh by the ultrafine...

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Abstract

The invention provides a solid-waste-based PVC (polyvinyl chloride) calendering film matrix high-temperature-resistant material and a preparation method thereof, and belongs to the field of PVC calendering film matrix materials. The preparation method comprises the following steps: forming 2500-mesh coal gangue superfine powder and 2000-mesh fly ash superfine powder by utilizing a superfine tire vertical mill, and then preparing the solid waste-based PVC calendering film matrix high-temperature-resistant material from the superfine powder, general-purpose plastic, a plasticizer, a stabilizer and titanium dioxide. According to the invention, the industrial bottlenecks of high price and large primary resource consumption in the production of the PVC calendering film matrix material from titanium dioxide and active nano calcium carbonate are solved; a conical vertical mill and a common tire vertical mill can only be used for processing the materials until the fineness is 450 meshes and the specific surface area is 500m < 2 > / kg; the defects that ball milling energy consumption is high, processed superfine powder forms a spherical shape and does not have fiber characteristics are overcome, solid waste coal gangue and fly ash are fully utilized, the hardness, high temperature resistance, wear resistance and weather resistance of a PVC calendering film base material are improved, and the industrial development requirements of current energy conservation, environmental protection and circular economy are met.

Description

technical field [0001] The invention belongs to the field of PVC calendered film base materials, in particular to a solid waste-based PVC calendered film base material with high temperature resistance and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) calendered film is usually made by a calendering process. Calendering is to pass the heated PVC plastic through the gap between one or more pairs of oppositely rotating horizontal rollers, so that the material is subjected to extrusion and extension. The process of becoming a thin product with a certain thickness, width and smooth surface. Titanium dioxide is the most commonly used filler in PVC calendering production formulations. However, the continuous increase in the price of titanium dioxide has resulted in a substantial increase in the production cost of PVC calendered film. [0003] Coal gangue is a solid waste discharged from the coal mining process and coal washing process, and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/12C08K3/22C08K3/36C08K7/26C08J5/18
CPCC08J5/18C08J2327/06C08K5/12C08K2003/2241C08K7/26C08K3/36C08K2003/2227
Inventor 张浩刘加辉龙红明吴胜华朱子康季益龙王倩宗志芳杜晓燕王艳茹
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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