Energy-saving low-carbon environment-friendly curtain fabric and manufacturing method thereof

Abstract

The invention relates to an energy-saving low-carbon environment-friendly curtain fabric and a preparation method thereof. The preparation method comprises the following steps: selecting a jacquard weave fabric as a base fabric; preparing bottom layer phase change slurry, coating the flat surface of the base cloth with the bottom layer phase change slurry, and drying the bottom layer phase change slurry to form a bottom layer phase change thermal insulation layer; preparing middle-layer phase-change slurry, uniformly coating the bottom-layer phase-change thermal insulation layer with the middle-layer phase-change slurry, and drying to form a middle-layer phase-change thermal insulation layer; preparing surface layer phase change slurry, uniformly coating the surface layer phase change slurry on the middle layer phase change thermal insulation layer, and drying to form a surface layer phase change thermal insulation layer; preparing an anti-sticking layer sizing agent, uniformly coating the anti-sticking layer sizing agent on the surface phase-change thermal insulation layer, and drying to form an anti-sticking layer, so as to obtain the required energy-saving low-carbon environment-friendly curtain. Through a contrast test, a room using the curtain is remarkably superior to a room using a traditional curtain in the aspects of temperature control and energy consumption, and the curtain has a remarkable energy-saving effect and environment-friendly benefits.

Description

Technical Field

[0001] The invention relates to the technical field of curtain fabrics, and in particular to an energy-saving, low-carbon and environmentally friendly curtain fabric and a manufacturing method thereof. Background Art

[0002] According to statistics, the carbon emissions generated by coal, electricity, air conditioning, etc. consumed for indoor heating and cooling in buildings are over 2 billion tons each year.

[0003] At present, in order to reduce the impact of the external environment on indoor temperature, measures such as reducing the heat transfer coefficient of the building envelope and increasing external shading are usually adopted. Among them, indoor curtains have become popular as soon as they were launched on the market due to their beautiful and environmentally friendly features. How to give curtains more functions so that they can play a greater role, especially giving curtains the characteristics of temperature regulation and energy storage, is one of the current hot topics.

[0004] However, although existing curtain products have a certain sunshade effect, they usually cannot achieve energy storage and conversion, and are prone to deformation, wrinkling and fading after long-term use. In addition, traditional curtains have limited effects in energy saving and environmental protection, and cannot meet the requirements of modern society for low-carbon and environmental protection. Therefore, how to develop a curtain with temperature regulation and energy storage function has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide an energy-saving, low-carbon and environmentally friendly curtain and a manufacturing method thereof. By introducing phase change materials into the curtain fabric, the curtain can absorb or release heat when the temperature changes, thereby adjusting the indoor temperature, reducing energy consumption, and having good energy-saving and environmental protection effects.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A method for manufacturing energy-saving, low-carbon and environmentally friendly curtains, characterized by comprising the following steps:

[0008] S1, select jacquard fabric as base fabric;

[0009] S2, preparing a bottom phase change slurry, and applying it on the relatively flat side of the base fabric, and forming a bottom phase change insulation layer after drying;

[0010] The preparation method of the bottom phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 30 kg of kaolin, then add 100 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 250 kg of styrene acrylic emulsion and 0.6 kg of polyamide polyurea resin, stir and use carboxymethyl cellulose for thickening to obtain the desired bottom phase change slurry;

[0011] S3, preparing an intermediate phase change slurry, and evenly coating it on the bottom phase change insulation layer, and drying it to form an intermediate phase change insulation layer;

[0012] The preparation method of the intermediate layer phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 25 kg of calcium carbonate, then add 80 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 200 kg of styrene acrylic emulsion, 30 kg of ground and dispersed carbon black slurry, and 0.6 kg of polyamide polyurea resin, stir to obtain the required intermediate layer phase change slurry;

[0013] S4, preparing a surface phase change slurry, and evenly coating it on the intermediate phase change insulation layer, and drying it to form a surface phase change insulation layer;

[0014] The preparation method of the surface phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 30 kg of kaolin, then add 100 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 250 kg of styrene acrylic emulsion and 0.6 kg of polyamide polyurea resin, stir and use carboxymethyl cellulose for thickening to obtain the desired surface phase change slurry;

[0015] S5, preparing an anti-sticking layer slurry, and evenly coating it on the surface phase change insulation layer, and forming an anti-sticking layer after drying, so as to obtain the required energy-saving, low-carbon and environmentally friendly curtains;

[0016] The preparation method of the anti-sticking layer slurry is as follows: 5 kg of silicone oil and 95 kg of water are mixed and stirred, and a cellulose thickener is added to thicken the slurry until the viscosity reaches 200,000-250,000 mPa·s.

[0017] According to a further preferred technical solution, the base fabric is a jacquard fabric with a yarn count of 150D*(5.5S+8S) and a surface density of 20g / ㎡.

[0018] According to a further preferred technical solution, the coating thickness of the bottom phase change slurry is 100 μm, the drying temperature is 160° C., and the drying time is 1 min.

[0019] According to a further preferred technical solution, the coating thickness of the intermediate layer phase change slurry is 80 μm, the drying temperature is 160° C., and the drying time is 1 min.

[0020] According to a further preferred technical solution, the coating thickness of the surface phase change slurry is 120 μm, the drying temperature is 160° C., and the drying time is 2 min.

[0021] According to a further preferred technical solution, the coating thickness of the anti-sticking layer slurry is 20 μm, the drying temperature is 150° C., and the drying time is 1 min.

[0022] According to a further preferred technical solution, in the preparation process of all the above slurries, the parameters of the mixer are uniformly set to: speed 5000r / min, stirring time 20min.

[0023] The beneficial effects of the present invention are:

[0024] The technical advantages of this technical solution are mainly reflected in the following aspects:

[0025] 1. Significant energy saving effect

[0026] Thermal management capabilities of phase change materials: Phase change materials used in curtains can undergo phase changes (such as from solid to liquid or vice versa) at a specific temperature, absorbing or releasing a large amount of latent heat during the phase change process. This property enables curtains to absorb heat during the day to lower the indoor temperature, and release heat at night to raise the indoor temperature, significantly improving the indoor temperature stability.

[0027] Reduce energy consumption: Through comparative tests, the room using this energy-saving curtain consumes about 33% less electricity under air-conditioning operation than the room using ordinary curtains. This significant energy-saving effect can significantly reduce the energy consumption of buildings, especially in areas where air conditioning is frequently used, and more effectively reduce electricity consumption.

[0028] 2. Enhanced indoor temperature regulation capabilities

[0029] Improve indoor comfort: The energy-saving curtains of the present invention can effectively regulate the indoor temperature. The maximum temperature is 4°C lower than that of ordinary curtains, and the minimum temperature is 3°C higher. The time to reach the temperature peak is delayed by several hours. This means that the curtains can maintain a more stable and comfortable indoor temperature to a certain extent, reducing the impact of temperature fluctuations on human comfort.

[0030] Thermal inertia: Since phase change materials have a high heat capacity, they can slowly release or absorb heat over a long period of time, thereby slowing down the change in indoor temperature. This characteristic is particularly beneficial in environments with large temperature differences between day and night, and can effectively alleviate rapid fluctuations in room temperature and enhance the comfort of the living environment.

[0031] 3. Environmental protection and low carbon benefits

[0032] Reduced carbon emissions: In rooms with energy-saving curtains, carbon emissions are reduced by about 8 kg per day during air conditioning operation. As global climate change becomes increasingly serious, this carbon emission reduction feature is particularly important and can make a positive contribution to building energy conservation.

[0033] Reducing the environmental burden during use: Traditional curtain materials may bring certain environmental burdens during production and use, while the phase change materials and coating technology used in the present invention can extend the service life of the curtains, reduce the frequency of material replacement and resource consumption, thereby reducing the environmental burden during use.

[0034] 4. Material selection and process innovation

[0035] Multi-layer coating process: This technical solution adopts a multi-layer coating design of bottom layer, middle layer, surface layer and anti-stick layer. The material composition and characteristics of each layer are carefully selected and proportioned to achieve the best phase change energy storage effect and material stability. Multi-layer coating not only enhances the durability and performance of the curtain, but also ensures stability under different environmental conditions.

[0036] Anti-stick design: The last layer of anti-stick slurry coating can effectively prevent the curtain fabric from sticking, ensuring that the curtain remains in good condition during use, and improving the durability and ease of maintenance of the curtain.

[0037] 5. Product performance and aesthetics are both taken into consideration

[0038] Appearance and function: While ensuring that the curtain has excellent energy-saving effect and environmental adaptability, the curtain of the present invention also has a beautiful appearance design. Through the reasonable design of the surface layer, the curtain also reaches a high standard in terms of sunshade effect and visual effect, which is suitable for indoor decoration requirements of different styles.

[0039] Strong durability: Thanks to the reasonable material selection and coating process, the curtain is not easy to deform, wrinkle or fade in long-term use. It has strong durability and can maintain good performance in various environments.

[0040] Summarize

[0041] In summary, this technical solution not only significantly improves the energy-saving effect and environmental adaptability of curtains through the innovative use of phase change materials and multi-layer coating technology, but also has significant technical advantages in improving indoor comfort, reducing carbon emissions, and enhancing product durability and aesthetics. These characteristics make this energy-saving, low-carbon and environmentally friendly curtain have broad application prospects in the fields of modern building energy conservation and green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 : Schematic diagram of the coating structure of the energy-saving, low-carbon and environmentally friendly curtain of the present invention.

[0043] 1-base fabric, 2-bottom phase change insulation layer, 3-middle phase change insulation layer, 4-surface phase change insulation layer, 5-anti-stick layer. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings.

[0045] An energy-saving, low-carbon and environmentally friendly curtain comprises a base fabric and a bottom layer phase change slurry, an intermediate layer phase change slurry, a surface layer phase change slurry and an anti-sticking layer slurry which are sequentially coated on the base fabric.

[0046] The manufacturing process of energy-saving, low-carbon and environmentally friendly curtains is as follows:

[0047] 1. Choice of base fabric:

[0048] A jacquard fabric with a yarn count of 150D*(5.5S+8S) and a surface density of 20g / ㎡ is selected, and the flatter side of the jacquard fabric is used as the coating surface.

[0049] 2. Pre-preparation of slurry

[0050] (1) Preparation of bottom phase change slurry:

[0051] Add 0.8 kg of sodium pyrophosphate into 250 L of water and stir evenly.

[0052] Add 30 kg kaolin, 100 kg paraffin and montmorillonite composite phase change material, and disperse and stir at high speed (5000 r / min, 20 minutes).

[0053] Add 250 kg of styrene acrylic emulsion and 0.6 kg of polyamide polyurea resin, and continue stirring (5000 r / min, 20 minutes).

[0054] Use carboxymethyl cellulose to thicken to a viscosity of 15000mPa·s.

[0055] Main functions:

[0056] Heat insulation and thermal insulation: The phase change material (paraffin and montmorillonite composite phase change material) in the bottom slurry absorbs or releases a large amount of heat within a specific temperature range, realizing heat storage and slow release. This function allows the curtain to absorb heat from the environment during the day, reducing the rapid rise in indoor temperature; at night, it releases the stored heat and slows down the drop in indoor temperature.

[0057] Structural stability: The added kaolin provides mechanical strength and stability to the coating, ensuring that the phase change material is evenly distributed in the coating while enhancing the durability of the coating.

[0058] (2) Preparation of intermediate layer phase change slurry:

[0059] Similarly, add 0.8 kg of sodium pyrophosphate into 250 L of water and stir evenly.

[0060] Add 25 kg of calcium carbonate, 80 kg of paraffin wax and montmorillonite composite phase change material, and stir at high speed (5000 r / min, 20 minutes).

[0061] Add 200 kg of styrene acrylic emulsion, 30 kg of carbon black slurry, and 0.6 kg of polyamide polyurea resin and continue stirring.

[0062] Main functions:

[0063] Thermal management and temperature regulation: Similar to the bottom slurry, the middle slurry also contains phase change materials, which further enhances the overall thermal management capabilities of the curtain. Phase change materials absorb or release latent heat during the phase change process, giving the curtain a significant temperature regulation function. This layer of slurry achieves more efficient energy storage and release through the interaction with the bottom slurry.

[0064] Thermal barrier effect: Calcium carbonate acts as a filler in this layer, enhancing the density and thermal resistance of the coating and reducing the conduction of heat. In addition, the carbon black paste not only gives the curtain a dark appearance and effectively blocks ultraviolet rays, but also improves the heat absorption efficiency of the phase change material by absorbing solar radiation.

[0065] (3) Preparation of surface slurry:

[0066] Repeat the preparation steps of the bottom phase change slurry to ensure the uniformity and phase change characteristics of the slurry.

[0067] Main functions:

[0068] Appearance and protective layer: The surface slurry provides the final appearance and protective layer of the curtain. The combination of kaolin and other materials makes the surface layer have good flatness and smoothness, which improves the aesthetics of the curtain.

[0069] Continuous energy saving function: The surface layer also contains phase change material, which works together with the bottom and middle layers to further enhance the energy storage and temperature regulation effect of the curtain. The surface layer is designed to prevent external heat from directly entering the room, or in the opposite case, prevent indoor heat from escaping.

[0070] Anti-aging and weather resistance: The selection of surface materials also takes weather resistance into consideration, which can resist the erosion of ultraviolet rays and other environmental factors, thus extending the service life of the curtains.

[0071] (4) Preparation of anti-sticking layer slurry:

[0072] Mix 5 kg of silicone oil with 95 kg of water and stir evenly.

[0073] Add cellulose thickener until the viscosity reaches 200,000-250,000 mPa·s.

[0074] Main functions:

[0075] Prevent sticking: The silicone oil component of the anti-stick layer gives the coating an extremely low surface energy, preventing the curtains from sticking when rolled up or folded, ensuring the comfort and convenience of the curtains during use.

[0076] Keep clean and beautiful: This layer also has a self-cleaning function, which can reduce the adhesion of dust and dirt, making the curtains easier to maintain and clean, and maintaining the beautiful effect of the curtains.

[0077] The phase change slurry in this scheme is different from conventional phase change materials in that:

[0078] (1) Use of composite phase change materials.

[0079] Composite phase change material (composite of paraffin and montmorillonite): Conventional phase change materials usually use pure phase change substances (such as pure paraffin) for thermal energy storage, but these materials have the disadvantages of poor thermal conductivity, single phase change temperature range, and serious leakage problems. In the present invention, by combining paraffin and montmorillonite, the phase change material not only has good phase change latent heat and stable phase change temperature, but also forms a stable composite phase change material system through the support of montmorillonite, which effectively solves the problem of phase change material leakage and improves the heat storage capacity and durability of the material.

[0080] (2) Innovation of multi-layer coating process

[0081] Synergy of layered design: Traditional phase change material applications usually simply embed the phase change material into a carrier, such as a wall or fiber fabric. However, the present invention uses a layered design of the bottom layer, the middle layer and the surface layer, each layer has different material composition and function, and forms a good synergistic effect of thermal management and energy storage. This multi-layer coating process not only improves the energy-saving performance of the curtain, but also makes the curtain have higher mechanical stability and durability.

[0082] (3) Improvement of comprehensive functions

[0083] Combination of photothermal conversion and temperature regulation: Traditional phase change materials are limited to the storage and release of heat, while the present invention achieves the combination of photothermal conversion and temperature regulation by adding carbon black slurry and composite phase change materials. Carbon black not only increases the heat absorption effect, but also optimizes the overall thermal management performance of the curtains through interaction with the phase change materials, ensuring that the curtains can play the best energy-saving role under different environmental conditions.

[0084] (4) Environmental protection and economic benefits

[0085] Material selection and environmental protection: The phase change materials and fillers (such as kaolin and calcium carbonate) used in the present invention are environmentally friendly materials, which are more sustainable and environmentally friendly than traditional curtains that use high-energy consumption and high-pollution materials. At the same time, because this curtain has excellent energy-saving effects, it can significantly reduce the frequency of use of energy-consuming equipment such as air conditioners, thereby reducing energy consumption and carbon emissions, bringing significant economic and environmental benefits.

[0086] 3. Coating process:

[0087] The bottom phase change slurry is evenly coated on the relatively flat side of the base fabric (the reverse side of the jacquard fabric), and after drying, a bottom phase change insulation layer is formed. The coating thickness is 100 μm, the drying temperature is 160°C, and the drying time is 1 minute.

[0088] ·Evenly coat the intermediate phase change slurry on the bottom phase change insulation layer, and form the intermediate phase change insulation layer after drying. The coating thickness is 80μm, the drying temperature is 160℃, and the drying time is 1 minute.

[0089] ·Evenly coat the surface phase change slurry on the middle phase change insulation layer, and form the surface phase change insulation layer after drying. The coating thickness is 120μm, the drying temperature is 160℃, and the drying time is 2 minutes.

[0090] Finally, the anti-sticking layer slurry is evenly coated on the surface phase change insulation layer, and after drying, an anti-sticking layer is formed to prevent the curtain fabric from sticking together, thereby obtaining the required energy-saving, low-carbon and environmentally friendly curtains. The coating thickness is 20μm, the drying temperature is 150℃, and the drying time is 1 minute.

[0091] 4. Performance test of energy-saving, low-carbon and environmentally friendly curtains:

[0092] Test method: Hang energy-saving curtains and ordinary curtains in two rooms with the same conditions, and compare their temperature changes and energy consumption.

[0093] Test results: The maximum temperature of a room with energy-saving curtains is 4°C lower than that of a room with ordinary curtains, and the minimum temperature is 3°C higher; the maximum temperature is reached 2.5 hours later, and the minimum temperature is reached 1.5 hours later. In terms of energy consumption, the power consumption of air conditioners in rooms with energy-saving curtains is reduced by about 33%, and daily carbon emissions are reduced by about 8 kg.

Claims

1. A method for manufacturing energy-saving, low-carbon and environmentally friendly curtains, characterized in that: The steps include: S1, select jacquard fabric as base fabric; S2, preparing a bottom phase change slurry, and applying it on the relatively flat side of the base fabric, and forming a bottom phase change insulation layer after drying; The preparation method of the bottom phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 30 kg of kaolin, then add 100 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 250 kg of styrene acrylic emulsion and 0.6 kg of polyamide polyurea resin, stir and use carboxymethyl cellulose for thickening to obtain the desired bottom phase change slurry; S3, preparing an intermediate phase change slurry, and evenly coating it on the bottom phase change insulation layer, and drying it to form an intermediate phase change insulation layer; The preparation method of the intermediate layer phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 25 kg of calcium carbonate, then add 80 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 200 kg of styrene acrylic emulsion, 30 kg of ground and dispersed carbon black slurry, and 0.6 kg of polyamide polyurea resin, stir to obtain the required intermediate layer phase change slurry; S4, preparing a surface phase change slurry, and evenly coating it on the intermediate phase change thermal insulation layer, and drying it to form a surface phase change thermal insulation layer; The preparation method of the surface phase change slurry is as follows: add 0.8 kg of sodium pyrophosphate to 250 L of water, stir evenly, then add 30 kg of kaolin, then add 100 kg of paraffin and montmorillonite composite phase change material, and then stir under a high-speed disperser to ensure that the raw materials are evenly dispersed in the water, then add 250 kg of styrene acrylic emulsion and 0.6 kg of polyamide polyurea resin, stir and use carboxymethyl cellulose for thickening to obtain the desired surface phase change slurry; S5, preparing an anti-sticking layer slurry, and evenly coating it on the surface phase change insulation layer, and forming an anti-sticking layer after drying, so as to obtain the required energy-saving, low-carbon and environmentally friendly curtains; The preparation method of the anti-sticking layer slurry is as follows: 5 kg of silicone oil and 95 kg of water are mixed and stirred, and a cellulose thickener is added to thicken the slurry until the viscosity reaches 200,000-250,000 mPa·s.

2. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: The base fabric is a jacquard fabric with a yarn count of 150D*(5.5S+8S) and a surface density of 20g / ㎡.

3. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: The coating thickness of the bottom phase change slurry is 100 μm, the drying temperature is 160° C., and the drying time is 1 min.

4. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: The coating thickness of the intermediate layer phase change slurry is 80 μm, the drying temperature is 160° C., and the drying time is 1 min.

5. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: The coating thickness of the surface phase change slurry is 120 μm, the drying temperature is 160° C., and the drying time is 2 min.

6. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: The coating thickness of the anti-sticking layer slurry is 20 μm, the drying temperature is 150° C., and the drying time is 1 min.

7. The method for manufacturing energy-saving, low-carbon and environmentally friendly curtains according to claim 1, characterized in that: In the preparation process of all the above slurries, the parameters of the mixer were uniformly set to: speed 5000r / min, stirring time 20min.

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