Solid waste composite material, and preparation method and application thereof

A technology of solid waste and composite materials, which is applied in the field of solid waste composite materials and its preparation, can solve the problems of low product recycling rate, difficult mold processing, long mold production cycle, etc., and achieve high recycling rate and low cost. The effect of low cost and low raw material cost

Pending Publication Date: 2021-12-31
内蒙古中朵实业(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the molds used for the production of prefabricated building components in the market are mainly steel molds, but there are irreparable shortcomings. The common problems include: a. High raw material and production costs; b. Heavy weight; c. It is not easy to assemble and disassemble; d, the mold production cycle is long; e, the mold processing is difficult; f, the product recycling rate is low

Method used

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  • Solid waste composite material, and preparation method and application thereof
  • Solid waste composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing a mold for the production of a prefabricated building component, which consists of the following steps:

[0041] a. Raw material sieving: sieve fly ash and waste PVC raw materials through 20-200-mesh sieves, the sieve residue is less than 5%, and pack for use;

[0042] b, batching mixing: composition according to weight percentage: fly ash 58%, waste and old PVC 37%, stabilizer 2.5%, modifier chlorinated polyethylene 2%, the first lubricant stearic acid 0.2%, the second lubricant paraffin 0.3% for weighing, and uniformly mix all the above materials; the stabilizer is a rare earth composite stabilizer, and the rare earth composite stabilizer is a rare earth composite stabilizer for BRE-B series plates.

[0043] c. Extrusion molding: use an extrusion molding machine to extrude the mixed raw materials, the temperature range of barrel 1 is 178°C, the temperature range of barrel 2 is 180°C, the temperature range of barrel 3 is 190°C, and the temperatur...

Embodiment 2

[0047] A method for preparing a mold for the production of a prefabricated building component, which consists of the following steps:

[0048] a. Raw material screening: sieve fly ash, ferrosilicon ash and waste PVC raw materials through a 20-mesh to 200-mesh sieve. The sieve residue is less than 5%, and the package is ready for use;

[0049] b. Homogenization and mixing: Composition by weight percentage: fly ash 64%, waste PVC 32%, stabilizer 1.7%, modifier 1.7% (chlorinated polyethylene 1.5%, acrylate copolymer 0.2%), the first lubricant Stearic acid 0.3%, the second lubricant 0.3% (paraffin 0.1%, PE wax 0.2%) are weighed, and all the above materials are uniformly mixed; the stabilizer is a rare earth composite stabilizer, and the rare earth composite stabilizer is BRE-B Rare earth composite stabilizer for series plates.

[0050] c. Extrusion molding: Use an extrusion molding machine to extrude the mixed raw materials. The temperature range of barrel 1 is 185°C, the tempera...

Embodiment 3

[0054] A method for preparing a mold for the production of a prefabricated building component, which consists of the following steps:

[0055] a. Raw material screening: sieve fly ash, ferrosilicon ash and waste PVC raw materials through a 20-mesh to 200-mesh sieve. The sieve residue is less than 5%, and the package is ready for use;

[0056] b. Homogenization and mixing: Composition by weight percentage: fly ash 70%, waste PVC 26%, stabilizer 1.9%, modifier 1.5% (chlorinated polyethylene 0.7%, acrylate copolymer 0.8%), the first lubricant 0.4% stearic acid as the agent and 0.2% PE wax as the second lubricant are weighed, and all the above materials are uniformly mixed; the stabilizer is a rare earth composite stabilizer, and the rare earth composite stabilizer is a rare earth composite stabilizer for BRE-B series plates.

[0057] c. Extrusion molding: use an extrusion molding machine to extrude the mixed raw materials. The temperature range of barrel 1 is 180°C, the temperatu...

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Abstract

The invention discloses a solid waste composite material, and a preparation method and application thereof. The solid waste composite material comprises, by weight, 58-75 parts of fly ash, 20-37 parts of waste PVC, 1-5 parts of a stabilizer, 1-5 parts of a modifier, and 0.1-1.5 parts of a lubricant, and the stabilizer is a rare earth composite stabilizer. The use amount of the fly ash is larger, and a way is provided for comprehensive utilization of industrial solid waste. The process formula is simple in design, and introduction of complex high polymer materials is eliminated. The raw materials are easy to obtain, the process is simple, and the cost is low. Starting from practice and through actual production verification of the company, an assembly type mold product which can be completely popularized in a marketization mode is obtained. No matter from factory production to actual use on a construction site, and even later recovery, hundred percent cyclic utilization is completely achieved, resources are saved, secondary pollution is avoided, and green and environment-friendly effects are really achieved.

Description

technical field [0001] The invention relates to the field of solid waste composite materials, in particular to a solid waste composite material and its preparation method and application. Background technique [0002] my country's bulk industrial solid waste refers to solid waste such as mining waste rocks, ore dressing tailings, fuel waste residues, chemical production and smelting waste residues, which have an annual output of more than 10 million tons in production activities in various industrial fields and have a greater impact on the environment and safety. Typical solid wastes are mainly fly ash, tailings, coal gangue, smelting slag and industrial by-product gypsum. The composition of industrial solid waste is relatively stable, among which tailings, mining and coal-fired industrial solid waste are the most, including fly ash, tailings, coal gangue, smelting slag and industrial by-product gypsum, etc. Around 81%. This is closely related to the fact that my country's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08L23/06C08L33/08C08L91/06C08K3/00C08K3/34C08K5/09B29D7/00E04G9/02
CPCC08L27/06B29D7/00E04G9/02C08L2205/03C08L2205/035C08L23/286C08L91/06C08K3/00C08K3/34C08K5/09C08L23/06C08L33/08
Inventor 曹建伟王万生
Owner 内蒙古中朵实业(集团)有限公司
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