Vacuum vesicle thermal-insulation particle with thermal-insulation functions and preparation method thereof

A vacuum bag and particle technology, applied in thermal insulation, climate change adaptation, building components, etc., can solve the problems of core material damage, single use size, non-cutting of thermal insulation materials, etc., to improve poor water resistance, good barrier performance, and improved Effects of non-machinability and application limitations

Inactive Publication Date: 2014-02-12
易科美德(天津)环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This core material is only suitable for the production of thermal insulation materials with a fixed size. The thermal insulation materials made of it as the core material are not tailorable, and the size of the use is single. For thermal insulation materials with different structural shapes, its application has been greatly affected. limited, and local damage will lead to the destruction of the entire core material

Method used

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  • Vacuum vesicle thermal-insulation particle with thermal-insulation functions and preparation method thereof

Examples

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preparation example Construction

[0030] 1. Preparation of filling core material: select rock wool fibers with a diameter of 3-5 μm, crush them, and dry them at a constant temperature of 120°C until the moisture content is lower than 0.1%;

[0031] 2. Preparation of vacuum barrier film bag: Extrude the multi-layer composite film by using multi-layer composite film extruder equipment, and use conventional blow molding machine to blow mold the vacuum packaging bag;

[0032] 3. Preparation of rock wool-filled pipes: Based on PET, PVC or PE pipes, select a square pipe with a length of 50-100cm, a wall thickness of 0.1-5mm, and a cross-sectional side length of 10-50mm, and prepare in step 1 The filling core material is filled into the square tube and compacted;

[0033] 4. Preparation of cut-offs: cut rock wool-filled pipes into small sections with a length of 10-30mm by conventional cutting machine, and then dry at 70°C until the moisture content is lower than 0.1%;

[0034] 5. Preparation of vacuum vesicle parti...

Embodiment 1

[0042] Preparation of filling core material: choose a bulk density of 150Kg / m 3 Rock wool fibers with a diameter of 3-7μm are mechanically shredded to a length shorter than 1cm for subsequent filling, and dried at a constant temperature of 120°C to a constant weight. 2. Preparation of vacuum barrier film bags: multi-layer composite films are prepared by extrusion molding and vacuum packaging bags of different sizes are prepared by blow molding. The size of the packaging bag is determined according to the cut-off size of the rock wool pipe. Generally, it is advisable for both sides to exceed the cut-off size by 5mm, so as to facilitate subsequent cut-off filling and vacuum sealing. 3. Preparation of rock wool-filled pipes: Based on PVC pipes, select a square pipe with a length of 50 cm and a pipe wall thickness of 0.5 mm with a side length of 50 mm. Fill the rock wool fiber prepared in step 1 into the square pipe and compact it. It is advisable that the filling rock wool does ...

Embodiment 2

[0044] Preparation of filling core material: choose a bulk density of 200Kg / m 3 Expanded perlite with a thermal conductivity of 0.05W / (m·K). 2. Preparation of vacuum barrier film bags: multi-layer composite films are prepared by extrusion molding and vacuum packaging bags of different sizes are prepared by blow molding. The size of the packaging bag is determined according to the cut-off size of the pipe. Generally, it is advisable for both sides to exceed the cut-off size by 5mm, so as to facilitate subsequent cut-off filling and vacuum sealing. 3. Preparation of expanded perlite filling material: Dissolve PVA powder in water at 90°C, add an equal amount of sodium lauryl sulfate for foaming treatment, add 100 parts of expanded pearl according to the mass ratio of PVA:expanded perlite 1:100 Rock, mixed evenly, to prevent the expanded perlite from falling off in the subsequent pipe cutting. Based on the PVC pipe, select a square pipe with a length of 80 cm, a pipe wall thickn...

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Abstract

The invention relates to a vacuum vesicle thermal-insulation particle which is characterized by comprising a particle body. The particle body is formed by a tubular high-polymer material and is of a columnar vacuum supporting structure, and inorganic material particles, getters and drying agents are filled in the particle body. A preparation method of the vacuum vesicle thermal-insulation particle comprises preparation of filling core materials, preparation of vacuum separating film bags, preparation of inorganic particle filling pipes, truncation of the pipes and preparation of the vacuum vesicle particles. The vacuum vesicle thermal-insulation particle has the advantages that the vacuum vesicle particle is of the columnar structure, good supporting effects of pipe truncation can maintain structural stability and dimension unicity of the vacuum vesicle particle, and damage to a film layer caused by an internal inorganic material is avoided. The problem that the inorganic material is poor in water resistance is solved, the separating performance is good, weather resistance is strong, and enough vacuum degree and dryness in the structure can be maintained in the using process by adding the getters and the drying agents in internal inorganic fillers. The vacuum vesicle particle can be widely applied to internal filling of thermal-insulation materials of various morphological structures.

Description

technical field [0001] The invention relates to a vacuum vesicle heat-insulating particle capable of being filled in a heat-insulating material and a preparation method thereof. Background technique [0002] At present, the interior of thermal insulation materials is mainly ordinary glass fiber, rock wool, foamed polyurethane, foamed polystyrene, etc. Or the above materials are simply processed and filled inside the insulation material. The thermal conductivity is basically close to the thermal conductivity of the material body. Therefore, in order to achieve good insulation performance, the insulation material is often achieved by the thickness of the material. The increase in thickness directly leads to an increase in the volume of the material per unit area and an increase in the weight of the material. For this material, there are certain deficiencies in terms of construction, space utilization and low carbon. The internal air convection heat transfer of ordinary insula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/76
CPCY02A30/244
Inventor 李欣涛许鑫华方海东刘全欣王学良
Owner 易科美德(天津)环保建材有限公司
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