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PVC sheet material produced from waste PVC

A sheet and waste technology, which is applied in the field of PVC sheets, can solve the problems of affecting fusion performance, increasing processing costs, and less consideration of material adhesion, and achieves the effect of good color, low processing cost, and guaranteed performance

Inactive Publication Date: 2019-03-01
GUANGDE TIANYUN NEW TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many reports on the production of PVC sheets by using waste PVC plastics, but the performance of the product is mainly improved by optimizing the processing technology. Although there are also reports on the improvement of performance through the ratio of raw materials, they are all optimized in terms of other additives. , less consideration is given to the bonding force between materials, and this just affects the fusion performance between materials, resulting in increased processing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, the PVC sheet produced by using waste PVC is made of the following raw materials in parts by weight: 50 parts of waste PVC, 2 parts of plasticizer, 15 parts of modified talcum powder, 15 parts of light calcium carbonate, 2 parts of stabilizer, nano 16 parts of silicon dioxide, 2 parts of phase solvent, 20 parts of epoxy resin, 3 parts of epoxy curing agent;

[0025] Among them, the preparation method of modified talc powder: mix talc powder and methyl cellulose powder according to the mass ratio of 1:0.2, then mix it with deionized water to form a slurry, degas it through ultrasonic vibration, and put it in an oven at 95°C Dry it, then raise the temperature to 200°C at a speed of 0.8°C / min, then raise the temperature to 1000°C at a speed of 5°C / min, keep it warm for 3 hours, and cool to room temperature with the furnace.

[0026] Epoxy resin is the bisphenol A type epoxy resin of epoxy equivalent 700; Epoxy curing agent triethylenetetramine; Plastici...

Embodiment 2

[0032] In this embodiment, the PVC sheet produced by using waste PVC is made of the following raw materials in parts by weight: 80 parts of waste PVC, 5 parts of plasticizer, 25 parts of modified talcum powder, 25 parts of light calcium carbonate, 5 parts of stabilizer, nano 22 parts of silicon dioxide, 5 parts of phase solvent, 30 parts of epoxy resin, 7 parts of epoxy curing agent;

[0033] Among them, the preparation method of modified talc powder: mix talc powder and methyl cellulose powder according to the mass ratio of 1:0.2, then mix it with deionized water to form a slurry, degas it through ultrasonic vibration, and put it in an oven at 100°C Dry it, then raise the temperature to 220°C at a speed of 1°C / min, and then raise the temperature to 1000°C at a speed of 5°C / min, keep it warm for 3 hours, and cool to room temperature with the furnace.

[0034] The epoxy resin is bisphenol A type epoxy resin with an epoxy equivalent of 700; the epoxy curing agent tetraethylenepe...

Embodiment 3

[0040]In this embodiment, the PVC sheet produced by using waste PVC is made of the following raw materials in parts by weight: 65 parts of waste PVC, 3.5 parts of plasticizer, 20 parts of modified talcum powder, 20 parts of light calcium carbonate, 3.5 parts of stabilizer, nano 19 parts of silicon dioxide, 3.5 parts of phase solvent, 25 parts of epoxy resin, 5 parts of epoxy curing agent;

[0041] Among them, the preparation method of modified talc powder: mix talc powder and methyl cellulose powder according to the mass ratio of 1:0.2, then mix it with deionized water to form a slurry, degas it through ultrasonic vibration, and put it in an oven at 98 ° C Dry it, then raise the temperature to 210°C at a speed of 0.9°C / min, and then raise the temperature to 1000°C at a speed of 5°C / min, keep it warm for 3 hours, and cool to room temperature with the furnace.

[0042] The epoxy resin is one of the bisphenol A type epoxy resins with an epoxy equivalent of 700; the epoxy curing a...

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Abstract

The invention provides a PVC sheet material produced from waste PVC, and relates to the technical field of PVC materials. The PVC sheet material produced from the waste PVC is made from the followingraw materials, such as the waste PVC, a plasticizer, modified talcum powder, light calcium carbonate, a stabilizer, nano-silica, a phase solvent, epoxy resin and an epoxy hardener. The PVC sheet material produced from thewaste PVC has the advantages that not only is the performance stable, the color and luster degree is good, but also the processing cost is low, the addition of the epoxy resin improves the stability of the waste PVC in the material, the bonding property of the epoxy resin and waste PVC is high under the high temperature condition, the epoxy hardener is added, the epoxy resin and the waste PVC material are combined and then tightly combined with the modified talcum powder and the nano-silica, thereby preventing the waste PVC material from being separated by stress in the friction process, the bonding property and dispersity among the raw materials are good on the whole, and the performance of the made PVC sheet material is good.

Description

technical field [0001] The invention relates to the technical field of PVC materials, in particular to a PVC sheet produced from waste PVC. Background technique [0002] Polyvinyl chloride (PVC) resin is a thermoplastic high polymer polymerized by vinyl chloride (VC) monomer. It is one of the four general-purpose plastics in the world. Because its production cost is lower than that of polyethylene and some metals, and it is processed The performance and physical and chemical properties of the product are excellent, which can meet the needs of preparing hard to soft, elastomers, fibers, coatings, etc., and are widely used in various fields such as industry, agriculture, and construction. In 2011, my country's polyvinyl chloride The output of resin reached 12.95 million tons, a year-on-year increase of 12.52%. It is estimated that the demand for PVC in my country is increasing at a rate of 10% per year. The extensive use of PVC will inevitably lead to the generation of a large n...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L63/00C08K13/06C08K9/00C08K9/04C08K3/26C08K3/36
CPCC08K2003/265C08K2201/014C08L27/06C08L63/00C08K13/06C08K9/00C08K9/08C08K3/26C08K3/36
Inventor 潘建新张陆贤
Owner GUANGDE TIANYUN NEW TECH
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