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Production method of total heat exchange graphene paper film

A graphene paper and total heat exchange technology, applied in paper, papermaking, paper coating, etc., can solve the problems of not being able to simultaneously improve sensible heat exchange efficiency, air permeability, moisture permeability, humidity efficiency and Han efficiency

Pending Publication Date: 2020-10-23
潍坊杰高非织材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, the production method of the prior art total heat exchange paper has the following defects: it cannot simultaneously improve sensible heat exchange efficiency, air permeability, moisture permeability, and moisture efficiency and Han efficiency.

Method used

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  • Production method of total heat exchange graphene paper film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of production method of total heat exchange graphene paper film, comprises the following steps:

[0036] 1) Base paper making: 70% softwood pulp + 30% hardwood pulp is used as raw material, the beating degree of the mixed pulp is 45°SR, and the graphene water-based slurry with a relative absolute dry fiber content of 0.5% is added to the slurry. The urea-formaldehyde resin with an absolute dry fiber content of 2.0% and the cationic starch with a relative absolute dry fiber content of 2% are prepared on a fourdrinier paper machine with water as a medium to obtain base paper at a speed of 100 m / min;

[0037] The graphene water-based slurry: the active ingredient content is 11±1%, and the viscosity is 2000±200mpa.s.

[0038] 2) Preparation of surface sizing solution: prepare polyvinyl alcohol and nitrogen-based flame retardant in a ratio of 1:4 to prepare a glue solution with a concentration of 18%, add pyrimidine antibacterial agents for mixing, and the amount of p...

Embodiment 2

[0043] A kind of production method of total heat exchange graphene paper film, comprises the following steps:

[0044] 1) Base paper making: 70% softwood pulp + 30% hardwood pulp is used as raw material, the beating degree of the mixed pulp is 50°SR, and the graphene water-based slurry with a relative dry fiber content of 1% is added to the slurry. The absolute dry fiber content is 0.6% sodium carboxymethyl cellulose and the relative absolute dry fiber content is 2% polyamide epichlorohydrin resin, and water is used as medium to carry out papermaking on a cylinder paper machine to obtain base paper, and the vehicle speed is 100m / min;

[0045] The graphene water-based slurry: the active ingredient content is 11±1%, and the viscosity is 2000±200mpa.s.

[0046] 2) Preparation of surface sizing solution: Prepare starch and brominated flame retardant in a ratio of 1:4 to prepare a glue solution with a concentration of 15%, and add ammonium compounds to mix; the amount of ammonium...

Embodiment 3

[0051] A kind of production method of total heat exchange graphene paper film, comprises the following steps:

[0052] 1) Base paper making: 70% coniferous wood pulp + 30% hardwood pulp is used as raw material, the beating degree of the mixed pulp is 55°SR, and the graphene water-based slurry with a relative dry fiber content of 1.5% is added to the slurry. The absolute dry fiber content is 0.7% sodium carboxymethyl cellulose and the relative absolute dry fiber content is 2% polyamide epichlorohydrin resin, with water as the medium, papermaking is carried out on the fourdrinier paper machine to obtain the base paper, and the speed of the machine is 100m / min;

[0053] The graphene water-based slurry: the active ingredient content is 11±1%, and the viscosity is 2000±200mpa.s.

[0054] 2) Preparation of surface sizing solution: prepare polyvinyl alcohol and phosphorus flame retardant at a ratio of 1:5 to prepare a glue solution with a concentration of 16%, add organic bromine c...

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Abstract

The invention provides a production method of a total heat exchange graphene paper film. The production method comprises the steps of raw paper papermaking, surface sizing liquid preparation and surface sizing liquid coating. According to the raw paper papermaking, plant fiber pulp is prepared, and body paper is obtained through papermaking on a rotary screen or fourdrinier; the beating degree ofthe plant fiber pulp is 30-70 degrees SR, and the papermaking speed is 50-100 m / min. According to the surface sizing liquid preparation, a high-molecular polymer and a flame retardant are mixed to prepare a glue solution, and an antibacterial agent is added into the glue solution; the mass ratio of the high-molecular polymer to the flame retardant is 1: (4-10); the addition amount of the antibacterial agent is 0.15-0.3% of that of the glue solution; the concentration of a surface sizing liquid is 10-40%. A total heat exchanger core is made of the total heat exchange graphene paper film prepared through the production method; and the sensible heat efficiency of a fresh air system adopting the total heat exchanger core is 70%-78%.

Description

technical field [0001] The invention belongs to the technical field of special paper, and in particular relates to a production method of a total heat exchange graphene paper film. Background technique [0002] When the total heat exchanger is working, when the indoor exhaust air and the fresh air flow through the core of the exchanger in a positive crossing manner, due to the temperature difference and steam partial pressure difference in the airflow on both sides of the airflow partition plate, the two airflows appear to pass through the partition plate. The phenomenon of heat and mass transfer, triggering the total heat exchange process. During summer operation, the fresh air obtains cooling capacity from the indoor exhaust air to lower the temperature, and at the same time, through humidity exchange, the moisture content of the fresh air is reduced; during winter operation, the fresh air obtains heat from the indoor exhaust air, the temperature rises, and at the same tim...

Claims

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Application Information

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IPC IPC(8): D21H11/00D21H17/47D21H17/00D21H17/29D21H17/26D21H17/55D21H17/51D21H19/14D21H19/20D21H21/16D21H21/34D21H21/36D21H19/84D21H19/00D21H25/00
CPCD21H11/00D21H17/00D21H17/26D21H17/29D21H17/47D21H17/51D21H17/55D21H19/00D21H19/14D21H19/20D21H19/84D21H21/16D21H21/34D21H21/36D21H25/005
Inventor 初杰王光民于东兴李雪冰
Owner 潍坊杰高非织材料科技有限公司
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