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Method for preparing glass fiber cement felt

A production method and a technology for cement felt, which are applied in the field of raw materials for polyurethane board processing, can solve the problems that the quality of glass fiber cement felt cannot be achieved, the quality of cement layer is not significantly improved, and the quality of polyurethane board is poor, so as to achieve an efficient production method and excellent frost resistance. Sexual, smooth surface effect

Active Publication Date: 2016-09-21
安徽瑞联节能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing glass fiber cement mats are made by first making a cement layer, and then bonding glass fiber mats on the surface of the cement layer. Although the overall performance can be improved by changing the raw material composition of the cement layer, not only the cost increases, At the same time, the quality of the prepared cement layer has not been significantly improved, resulting in that the quality of the existing glass fiber cement mat cannot reach the effect expected by the manufacturer, and the quality of the polyurethane board made of the existing glass fiber cement felt is also poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention relates to a method for manufacturing a glass fiber cement felt, the manufacturing steps of which are as follows: making composite cement slurry, drying and molding the composite cement slurry and glass fiber felt at different pressures, and compounding the cement slurry and glass fiber The process of non-isobaric drying and forming of the felt includes pulp filling, pressure-holding drying, and pressure-relieving and material-feeding.

[0025] The specific steps are:

[0026] (1) Preparation of composite cement slurry:

[0027] Prepare slurry raw materials according to the following composition ratio and mass parts: 20 parts of Portland cement, 3 parts of water-based paint thickener, 65 parts of 40-80 mesh quartz sand, 3 parts of dispersant, 2 parts of plugging agent, glue 5 parts, 3 parts of color paste;

[0028] Add cement, glue, thickener, dispersant, quartz sand and plugging agent to the mixing equipment in order, stir evenly at a temperature of 35°...

Embodiment 2

[0036] The invention relates to a method for manufacturing a glass fiber cement felt, the manufacturing steps of which are as follows: making composite cement slurry, drying and molding the composite cement slurry and glass fiber felt at different pressures, and compounding the cement slurry and glass fiber The process of non-isobaric drying and forming of the felt includes pulp filling, pressure-holding drying, and pressure-relieving and material-feeding.

[0037] The specific steps are:

[0038] (1) Preparation of composite cement slurry:

[0039] Prepare slurry raw materials according to the following composition ratio and mass parts: 30 parts of Portland cement, 5 parts of water-based paint thickener, 50 parts of 40-80 mesh quartz sand, 3 parts of dispersant, 1 part of plugging agent, glue 2 parts, 1 part of color paste;

[0040] Add cement, glue, thickener, dispersant, quartz sand and plugging agent to the mixing equipment in order, stir evenly at a temperature of 45°C,...

Embodiment 3

[0048] The invention relates to a method for manufacturing a glass fiber cement felt, the manufacturing steps of which are as follows: making composite cement slurry, drying and molding the composite cement slurry and glass fiber felt at different pressures, and compounding the cement slurry and glass fiber The process of non-isobaric drying and forming of the felt includes pulp filling, pressure-holding drying, and pressure-relieving and material-feeding.

[0049] The specific steps are:

[0050] (1) Preparation of composite cement slurry:

[0051] Prepare slurry raw materials according to the following composition ratio and mass parts: 25 parts of Portland cement, 4 parts of water-based paint thickener, 60 parts of 40-80 mesh quartz sand, 2 parts of dispersant, 1 part of plugging agent, glue 3 parts, 2 parts of color paste;

[0052] Add cement, glue, thickener, dispersant, quartz sand and plugging agent to the mixing equipment in order, stir evenly at a temperature of 45°C...

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Abstract

The invention provides a method for preparing glass fiber cement felt. The method comprises the preparing steps sequentially: preparing composite cement paste, and carrying out anisobaric baking molding on the composite cement paste and glass fiber felt, wherein an anisobaric baking molding process for the composite cement paste and the glass fiber felt comprises the steps of carrying out paste lifting and cavity filling, carrying out pressure-maintaining baking and carrying out depressurizing releasing. According to the method, the prepared composite cement paste is introduced into a mold and is subjected to anisobaric baking molding together with the glass fiber felt, so that the method is more efficient; the glass fiber cement felt prepared by the method provided by the invention has excellent weather resistance and various physical properties; and meanwhile, the interior is tight, and the surface is smooth, so that the accuracy of preparing of the glass fiber cement felt can be guaranteed, and meanwhile, the service effect and service life of the prepared product are guaranteed.

Description

technical field [0001] The invention belongs to the field of raw materials for processing polyurethane boards, and in particular relates to a method for making glass fiber cement felt. Background technique [0002] Polyurethane boards generally have a multi-layer structure, and the surfaces of each layer are connected by spraying adhesives. The glass fiber cement felt as the base layer of the polyurethane board plays a major decisive role in the overall quality of the polyurethane board. Most of the existing glass fiber cement mats are made by first making a cement layer, and then bonding glass fiber mats on the surface of the cement layer. Although the overall performance can be improved by changing the raw material composition of the cement layer, not only the cost increases, The quality of the cement layer that makes also does not obviously improve simultaneously, causes the quality of existing fiberglass cement felt to be unable to reach the effect expected by the manufa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/06C04B14/42C04B103/40C04B103/44
CPCC04B28/04C04B2111/82C04B14/06C04B14/42C04B2103/44C04B2103/408
Inventor 范伟王壮
Owner 安徽瑞联节能科技股份有限公司
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