阅读说明：本技术 一种隔热保温材料的制造方法 (Method for manufacturing heat insulation material ) 是由 刘国亮 王爱民 袁淑军 宋孝浜 李坤潮 王春霞 陆振乾 刘水平 于 2020-05-25 设计创作，主要内容包括：本发明提供一种隔热保温材料的制造方法,使用本发明方法制造的保温材料隔热保温效果好,使用的原材料广泛且环保。本发明的隔热保温材料的制造方法包括：将纤维制成第一纤维层；将纤维制成具有网状结构的骨架；将第一纤维层与骨架进行叠加铺设,形成隔热保温材料。本发明方法采用纤维作为原材料来制造隔热保温材料,制备得到的隔热保温材料生物降解性好,环保性能高。同时原材料纤维种类广泛,本实施例方法不受原材料来源的限制,制备成本低。本发明方法将第一纤维层和骨架进行叠加铺设,第一纤维层包裹在具有网状结构的骨架上,形成复合结构,第一纤维层将空气包裹在骨架内,进一步提高整个隔热保温材料的轻量化和保温隔热效果。(The invention provides a method for manufacturing a heat insulation material, and the heat insulation material manufactured by the method has good heat insulation effect, and the used raw materials are wide and environment-friendly. The method for manufacturing the heat insulation material comprises the following steps: forming the fibers into a first fiber layer; making the fiber into a skeleton with a net structure; and overlapping and laying the first fiber layer and the framework to form the heat insulation material. The method of the invention adopts the fiber as the raw material to manufacture the heat insulation material, and the prepared heat insulation material has good biodegradability and high environmental protection performance. Meanwhile, the raw material fibers are wide in variety, the method is not limited by the source of the raw materials, and the preparation cost is low. According to the method, the first fiber layer and the framework are overlaid and laid, the framework with the net structure is wrapped by the first fiber layer to form the composite structure, and the framework is wrapped by the air through the first fiber layer, so that the light weight and the heat preservation and insulation effect of the whole heat insulation material are further improved.)

1. A method for manufacturing a heat insulating material, the method comprising:

step 10) making a first fiber layer by using fibers;

step 20) making a skeleton with a net-shaped structure by using fibers;

and step 30) overlapping and laying the first fiber layer and the framework to form the heat insulation material.

2. The method for manufacturing a thermal insulation material according to claim 1, wherein the step 10) specifically comprises:

step 110) placing the fiber in a vacuum environment, and receiving plasma treatment or electromagnetic bombardment to form the fiber with a rough surface;

step 120) placing the rough-surface fiber in a vacuum environment, and spraying a coating material containing nano metal on the rough-surface fiber to form a coated fiber;

step 130) placing the coated fibers in a static electricity generating device to form a first fiber layer.

3. The method for manufacturing a thermal insulation material according to claim 1, wherein the step 20) specifically comprises:

step 210) carrying out plasma treatment, electromagnetic bombardment and electrostatic separation on the fibers in sequence to form a second fiber layer;

step 220) putting the second fiber layer in a twisting device for twisting to form yarns;

step 230) placing the yarn in a vacuum environment, and spraying a coating material containing a viscous substance and a water-soluble substance to form a coated yarn;

step 240) making the coated yarn into a skeleton with a net-shaped structure.

4. The method for manufacturing a thermal insulation material according to claim 1, wherein the step 30) specifically comprises:

and spraying a coating material containing viscous substances and water-soluble substances on the first fiber layer, and overlapping and laying the sprayed first fiber layer and the framework to form the heat insulation material.

5. The method for manufacturing a heat insulating material according to claim 1, wherein the step 10) and the step 20) are performed simultaneously.

6. The method of claim 3, wherein the second fiber layer is carded in step 220) before being twisted in the twisting device.

7. The method of claim 3, wherein in the step 240), the covered yarn is twisted in a twisting device before being made into the skeleton with the net structure.

8. The method of claim 3 or 4, wherein the coating material further comprises a heat sensitive substance or a light sensitive substance.

9. The method of manufacturing a thermal insulation material according to claim 4, wherein in the step 30), the first fiber layers after spraying are laid one on top of another, the skeleton is laid between the adjacent first fiber layers, and heating is performed by a heating device.

10. The method of claim 1, wherein the skeleton is a three-dimensional net structure.

Technical Field

The invention relates to the technical field of heat-insulating materials, in particular to a manufacturing method of a heat-insulating material.

Background

The traditional heat-insulating material is made of corrosion-resistant and acid-alkali-resistant raw materials, mainly comprises rock wool, glass wool, expanded perlite and the like, and has the advantages of large limitation of the raw materials and small selection range. And the materials have high density, poor heat insulation performance, large loss of laid thick materials, high hygroscopicity and poor environmental protection performance. In addition, heat insulation materials such as asbestos and glass wool have a large amount of harmful substances, and cannot meet the health requirements of human beings.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the heat insulation material manufactured by the method has good heat insulation effect, and the used raw materials are wide and environment-friendly.

In order to solve the above technical problem, an embodiment of the present invention provides a method for manufacturing a thermal insulation material, where the method includes:

step 10) making a first fiber layer by using fibers;

step 20) making a skeleton with a net-shaped structure by using fibers;

and step 30) overlapping and laying the first fiber layer and the framework to form the heat insulation material.

As a further improvement of the present invention, the step 10) specifically includes:

step 110) placing the fiber in a vacuum environment, and receiving plasma treatment or electromagnetic bombardment to form the fiber with a rough surface;

step 120) placing the rough-surface fiber in a vacuum environment, and spraying a coating material containing nano metal on the rough-surface fiber to form a coated fiber;

step 130) placing the coated fibers in a static electricity generating device to form a first fiber layer.

As a further improvement of the present invention, the step 20) specifically includes:

step 210) carrying out plasma treatment, electromagnetic bombardment and electrostatic separation on the fibers in sequence to form a second fiber layer;

step 220) putting the second fiber layer in a twisting device for twisting to form yarns;

step 230) placing the yarn in a vacuum environment, and spraying a coating material containing a viscous substance and a water-soluble substance to form a coated yarn;

step 240) making the coated yarn into a skeleton with a net-shaped structure.

As a further improvement of the present invention, the step 30) specifically includes:

and spraying a coating material containing viscous substances and water-soluble substances on the first fiber layer, and overlapping and laying the sprayed first fiber layer and the framework to form the heat insulation material.

As a further development of the invention, said step 10) and said step 20) are performed simultaneously.

As a further improvement of the present invention, in the step 220), before the second fiber layer is placed in the twisting device for twisting, the second fiber layer is carded.

As a further improvement of the present invention, in the step 240), before the covered yarn is made into the skeleton with the net-like structure, the covered yarn is placed in a twisting device for further twisting.

As a further improvement of the present invention, the coating material further comprises a heat-sensitive substance or a photosensitive substance.

As a further improvement of the present invention, in the step 30), the sprayed first fiber layers are stacked and laid layer by layer, and the skeleton is laid between the adjacent first fiber layers, and heated by the heating device.

As a further improvement of the invention, the framework is in a three-dimensional net structure.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects: the embodiment of the invention provides a method for manufacturing a heat insulation material, and the heat insulation material manufactured by the method has good heat insulation effect, wide used raw materials and environmental protection. The method adopts the fiber as the raw material to manufacture the heat insulation material, the requirements of the heat insulation material for use in special environment can be met by spraying the metal material with acid and alkali resistance and corrosion resistance on the surface of the material, and the prepared heat insulation material has good biodegradability and high environmental protection performance. Meanwhile, the raw material fibers are wide in variety, the method is not limited by the source of the raw materials, and the preparation cost is low. The framework manufactured by the method has a net structure, the gaps in the framework are increased, and the porosity is improved, so that the lightweight and heat-insulation effects of the framework are improved. The first fibrous layer and the skeleton that make the fibre are overlapped and are laid, and first fibrous layer parcel forms composite construction on the skeleton that has network structure, and first fibrous layer further improves whole thermal-insulated insulation material's lightweight and thermal-insulated effect of keeping warm with the air parcel in the skeleton.

Drawings

FIG. 1 is a method flow chart of a method of manufacturing a thermal insulation material according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiment of the invention provides a manufacturing method of a heat insulation material, which comprises the following steps of:

s10 forming a first fibrous layer using fibers;

s20, making a skeleton with a net structure by using fibers;

s30, the first fiber layer and the framework are overlaid to form the heat insulation material.

The method adopts the fiber as the raw material to manufacture the heat insulation material, the requirements of the heat insulation material for use in special environment can be met by spraying the metal material with acid and alkali resistance and corrosion resistance on the surface of the material, and the prepared heat insulation material has good biodegradability and high environmental protection performance. Meanwhile, the raw material fibers are wide in variety, the method is not limited by the source of the raw materials, and the preparation cost is low. The framework manufactured by the method has a net structure, the gaps in the framework are increased, and the porosity is improved, so that the lightweight and heat-insulation effects of the framework are improved. The first fibrous layer and the skeleton that make the fibre are overlapped and are laid, and first fibrous layer parcel forms composite construction on the skeleton that has network structure, and first fibrous layer further improves whole thermal-insulated insulation material's lightweight and thermal-insulated effect of keeping warm with the air parcel in the skeleton.

Preferably, the S10 specifically includes:

s110, the fiber is placed in a vacuum environment and is subjected to plasma treatment or electromagnetic bombardment to form the fiber with a rough surface.

S120, placing the rough-surface fiber in a vacuum environment, and spraying a coating material containing nano metal on the rough-surface fiber to form a coated fiber.

In a vacuum environment, the fibers with rough surfaces can float freely, so that the fibers are convenient to spray, and the coating material is completely coated. Preferably, the vacuum environment is in a semi-vacuum state, the vacuum degree is low, the fiber is still in a floating state, but the floating of the coating material is reduced, and the utilization rate of the coating material is improved.

S130, the coated fiber is placed in a static electricity generating device to form a first fiber layer.

The surface roughness of the fiber is increased, i.e., the specific surface area is increased, by plasma treatment or electromagnetic bombardment. The coating fiber is formed after the coating material containing the nano metal is sprayed, the specific surface area is increased, the coating area of the coating fiber is increased, and the heat preservation effect is improved. The coating area of the coated fiber is increased, more charges are generated in the static electricity generating device, the fiber arrangement direction of the fiber layer is controlled by controlling the direction of an electric field, and the production and processing under the static state are facilitated.

When the fiber enters the static electricity generating device, certain static electricity is generated due to the fact that metal substances are contained in the coating materials, and the fibers are arranged in a certain sequence or in a random sequence under the control of electric field force (the anode and the cathode of an electric field can be interchanged, or the anode and the cathode of the electric field are changed in a mode that the electric field is independent or closed, so that the arrangement direction of the fibers is changed). The electric field stops regularly or irregularly, thereby enabling the fibers to move in a free-falling mode to form first fiber layers with different shapes. When the electric field is regular, the arrangement of the fibers of the first fiber layer is regular, and when the electric field is irregular, the arrangement of the fibers in the first fiber layer is irregular. Through the random arrangement of regular and irregular fibers, the generation of gaps among the fibers is random, the thermal insulation material is formed through the combination of the regular and irregular first fiber layers, and the flow of air in the thermal insulation material can generate great randomness, so that the thermal insulation effect of the thermal insulation material is improved.

Preferably, the S20 specifically includes:

s210, the fibers are sequentially subjected to plasma treatment, electromagnetic bombardment and electrostatic separation to form a second fiber layer.

After plasma treatment of the fibers, the specific surface area of the fibers increases. After electromagnetic bombardment, the surface of the fiber has certain positive and negative charges, then the fibers are randomly separated by using the difference of the positive and negative charges at the two ends of the fiber through a static electricity generating device, and the fibers are sequenced according to the positive and negative charge directions of an electric field to form a second fiber layer. The greater the applied electrostatic voltage, the greater the regularity of the ordering of the fibers.

S220, putting the second fiber layer into a twisting device for twisting to form yarns;

s230, placing the yarn in a vacuum or semi-vacuum environment, and spraying a coating material containing a viscous substance and a water-soluble substance to form a coated yarn;

s240, the covering yarns are made into a framework with a net-shaped structure.

In this embodiment, the second fiber layer is placed in the spiral channel, and through moving in the spiral channel, rolling or rotation is generated, similarly to the method that one end is fixed by one hand, the other end is fixed by the other hand, the upper part and the lower part are vertical, and the fiber layer rotates in a certain direction, and then twisting is applied to form yarns. The morphology of the second fiber layer is more controlled than the individual fibers, moving within the helical path, reducing the probability of the fibers jumping out of the helical path.

The spraying is carried out in a vacuum environment, before the spraying, viscous substances or substances which are not fixed by yarn fibers attached to the surface of the yarn can be separated from the yarn in the vacuum environment, and the cleanliness of the yarn can be ensured. The yarns are sprayed with the coating material, the coating material contains viscous substances, the cohesion performance among the yarns is improved, and the yarns are not easy to loosen after the framework is subsequently made of the yarns. The coating material contains water-soluble substances, and the prepared heat-insulating material is soaked in water, so that the water-soluble substances are dissolved, and the weight of the heat-insulating material is reduced. Meanwhile, the water-soluble substance is dissolved, the coating material generates a spongy structure, the porosity is increased, and the heat preservation effect of the heat insulation material is improved.

Preferably, the S30 specifically includes:

and spraying a coating material containing viscous substances and water-soluble substances on the first fiber layers, overlapping and laying the sprayed first fiber layers layer by layer, and laying a framework between the adjacent first fiber layers to form the heat insulation material.

The first fiber layer is sprayed with a coating material, and the coating material contains viscous substances, so that an adhesion effect is generated between the first fiber layer and the framework during laying, and the obtained heat insulation material is not easy to loosen. The coating material contains water-soluble substances, and the prepared heat-insulating material is soaked in water, so that the water-soluble substances are dissolved, and the weight of the heat-insulating material is reduced. Meanwhile, the water-soluble substance is dissolved, the heat insulation material generates a spongy structure, the porosity is increased, and the heat insulation effect of the heat insulation material is improved.

The sequential execution order between S10 and S20 is not limited, and preferably, S10 and S20 are executed simultaneously.

Preferably, in S220, before the second fiber layer is placed in the twisting device for twisting, the second fiber layer is carded.

The second fiber layer is carded before twisting, the parallelism and the straightening degree of the fibers in the second fiber layer are further improved, meanwhile, short fibers or fibers which are not straightened can be carded, and the performance of the prepared heat insulation material is improved.

Preferably, in S240, before the covering yarn is made into the skeleton with the net-shaped structure, the covering yarn is placed in a twisting device for further twisting. And the secondary twisting further improves the bonding among fibers in the yarn, thereby improving the physical and mechanical properties of the yarn.

Preferably, the coating material further comprises a heat-sensitive substance or a light-sensitive substance. The prepared heat insulation material can present different patterns or colors under the condition of heating or light stimulation so as to display the temperature or the illumination intensity.

Preferably, in S30, the sprayed first fiber layers are laid one on top of another, and the skeleton is laid between adjacent first fiber layers while being heated by a heating device.

After the first fiber layer is sprayed with the coating material, the first fiber layer is paved on the framework through a smooth channel during paving, the framework keeps advancing, and the first fiber layer can be continuously paved. Because the sprayed substance is on one side of the fibrous layer, the side is in contact with the skeleton after passing through the smooth passage, and the first fibrous layer and the skeleton are bonded. The number of layers laid can be one or more, and is determined according to the product requirement. And under the action of a heating device, further drying and curing the sprayed coating material. Meanwhile, under the heating, cohesive forces among the fibers of the first fiber layer, the fibers of the framework, the first fiber layer and the framework and the first fiber layer are improved, so that the strength of the heat insulation material is improved.

Preferably, the framework is a three-dimensional net structure. The framework is made into a three-dimensional net-shaped structure, so that gaps in the framework are increased, the framework of the three-dimensional net-shaped structure has good stability and strength, and is laminated and paved with the first fibers to form a heat insulation material, so that the heat insulation effect and strength of the heat insulation material are further improved. The hydrogel can be added into the three-dimensional framework structure, the hydrogel has small density and biodegradability, and the heat preservation effect of the heat insulation material is further improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is also intended to be covered by the appended claims. The scope of the invention is defined by the claims and their equivalents.