Preparation and application of high-performance host wide-temperature matrix material

By synergistically designing the matrix material composition and chiral functional components, the problem of performance imbalance of wide-temperature matrix materials at extreme temperatures is solved, achieving a balance of structural stability and optical performance of the material within a wide temperature range, and meeting the long-term use requirements in extreme environments.

CN121873700BActive Publication Date: 2026-06-09SHANGHAI ASTRACE NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI ASTRACE NEW MATERIAL TECH CO LTD
Filing Date
2026-03-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing wide-temperature matrix materials exhibit uneven performance at extreme temperatures, making it difficult to simultaneously achieve low-temperature anti-precipitation, high-temperature stability, and excellent optical performance. Furthermore, traditional materials have short service life and insufficient light transmittance and viewing angle under high and low temperature environments.

Method used

By employing the synergistic design of matrix material compositions and chiral functional components, and through the multi-component combination of compounds of general formulas I, II, III, IV and compound V, combined with the (R)- or (S)-configuration chiral centers of chiral functional components and alkyl substituents of different carbon chain lengths, intermolecular forces are adjusted to form a stable molecular structure, thereby enhancing the wide temperature adaptability and optical properties of the material.

Benefits of technology

It achieves a balance between structural stability and optical performance of materials over a wide temperature range, possesses high transparency and a wide viewing angle, adapts to long-term use requirements in extreme environments, and improves the visual clarity and all-round observation capability of optical components.

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Abstract

The present application relates to the technical field of organic materials, in particular to a kind of preparation and application of high-performance host wide-temperature matrix material.The high-performance host wide-temperature matrix material is composed of matrix material composition and chiral functional component;Wherein the matrix material composition includes general formula II, III, IV compound and compound V, and the chiral functional component refers to one or more of general formula I compound is mixed in any proportion.The preparation method of the material includes premixing matrix material, adding chiral functional component and mixing, and defoaming treatment step.The material of the present application has excellent low-temperature anti-precipitation, high-temperature stability and high transmittance and wide viewing angle performance in wide temperature range, and is suitable for polymer light transmission control film, building intelligent light transmission component, vehicle-mounted light transmission assembly and optical functional layer of extreme environment display device.
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Description

Technical Field

[0001] This invention relates to the field of organic synthesis technology, and in particular to the preparation and application of a high-performance host wide-temperature matrix material. Background Technology

[0002] Wide-temperature-range optical functional components are increasingly used in fields such as intelligent building lighting, automotive optical components, and display devices for extreme environments. The core performance of these components is highly dependent on the comprehensive properties of the matrix material used, especially its structural stability and optical adaptability under extreme high and low temperature environments. As the market expands the application scenarios of optical components, more stringent requirements are being placed on the matrix material. It must not only avoid structural damage during long-term use in frigid regions and maintain stable performance under high-temperature exposure or high-temperature operating environments, but also possess high transparency and a wide viewing angle to meet the visual needs and reliability of use in different scenarios.

[0003] Currently available wide-temperature matrix materials generally suffer from insufficient performance balance, failing to simultaneously achieve low-temperature anti-precipitation, high-temperature stability, and excellent optical performance. Most traditional matrix materials are composed of a single type or a few compound blends, resulting in highly regular molecular structures. At low temperatures, these molecules easily aggregate through van der Waals forces, forming crystals that lead to material turbidity, reduced light transmittance, and even layering precipitation, affecting the normal operation of components. At high temperatures, increased molecular thermal motion can cause abnormal changes in viscosity and color, significantly shortening the lifespan of components. Regarding optical performance, existing materials either offer high transmittance but a narrow viewing angle, or slightly widen the viewing angle but sacrifice light transmittance, and suffer from poor molecular orientation uniformity, making it difficult to meet the visual clarity and omnidirectional observation requirements of high-end optical components. Therefore, developing a high-performance, wide-temperature matrix material with excellent overall performance has become a pressing technical challenge for the industry. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a method for preparing and applying a high-performance, wide-temperature matrix material.

[0005] To achieve the above objectives, the present invention provides a high-performance host wide-temperature matrix material, the high-performance host wide-temperature matrix material comprising a matrix material composition and a chiral functional component;

[0006] The chiral functional component is composed of one or more compounds of general formula I mixed in any proportion, and its general formula chemical structure is as follows:

[0007] ;

[0008] Where (R)- or (S)- are configuration markers;

[0009] R1 represents C2H5-CH(CH3)-, C3H7-CH(CH3)-, or C4H9-CH(CH3)-;

[0010] R2 represents -CN, -OCH3, or -OC2H5.

[0011] Preferably, the compound of general formula I further includes:

[0012] .

[0013] Preferably, the matrix material composition further comprises a compound of general formula II:

[0014] ;

[0015] Where R a This indicates straight-chain alkanes containing 2, 3, or 5 carbon atoms;

[0016] The compounds of general formula II specifically include the following compounds:

[0017] .

[0018] Preferably, the matrix material composition further comprises a compound of general formula III:

[0019] ;

[0020] Where R b This indicates a straight-chain alkane containing 2 or 3 carbon atoms;

[0021] The compounds of general formula III specifically include the following compounds:

[0022] .

[0023] Preferably, the matrix material composition further comprises a compound of general formula VI:

[0024] ;

[0025] Where R c It represents -OCH3, -CN, or -OH;

[0026] Specifically, compounds of general formula VI also include the following compounds:

[0027] .

[0028] Preferably, the matrix material composition further comprises compound V:

[0029] .

[0030] Preferably, the various compounds described above can be synthesized using well-known methods or obtained commercially. These synthetic techniques are conventional, and the resulting compounds have been tested and found to meet the standards for electronic compounds.

[0031] Preferably, the weight parts of various compounds and chiral functional components in the matrix material composition of the high-performance host wide-temperature matrix material are as follows: chiral functional component: 3-8 parts, compound II-1: 6-10 parts, compound II-2: 15-19 parts, compound II-3: 16-20 parts, compound III-1: 13-17 parts, compound III-2: 17-21 parts, compound IV-1: 4-8 parts, compound IV-2: 2-6 parts, compound IV-3: 1-5 parts, and compound V: 8-12 parts.

[0032] Furthermore, the present invention also provides a method for preparing a high-performance host wide-temperature matrix material, comprising the following steps:

[0033] (1) Premixing: In a clean and dry mixing vessel, add the matrix material composition, heat to 40-50℃, stir at 300-500r / min, mix for 10-20min to obtain the matrix premix;

[0034] (2) Addition of chiral components: Keep the temperature at 40-50℃, add chiral functional components to the matrix premix, adjust the stirring speed to 600-800r / min, and continue mixing for 20-50min to obtain the mixture;

[0035] (3) Degassing treatment: raise the temperature of the mixture to 60-70℃, control the vacuum degree at 0.05-0.1kPa, degas for 10-30min, restore normal pressure, and discharge the material after natural cooling to room temperature to obtain a high-performance main body wide temperature matrix material.

[0036] Furthermore, the present invention also provides an application of a high-performance host wide-temperature matrix material in the fabrication of wide-temperature-range optical functional components.

[0037] Preferably, the wide temperature range optical functional component is used for polymer light transmittance control films, and for optical functional layers used in building intelligent light transmittance components, vehicle light transmittance components, and extreme environment display devices.

[0038] Preferably, the mechanism of action of a high-performance, wide-temperature matrix material in this invention is explained as follows:

[0039] The matrix material composition serves as the foundation for performance, constructing a stable main framework through the multi-component combination of compounds of general formulas II, III, and IV, and compound V. Compounds of general formula II contain straight-chain alkane substituents R with 2, 3, or 5 carbon atoms. aIntermolecular forces can be modulated by differences in chain length. Short-chain components reduce the tendency of the system to crystallize, while long-chain components enhance structural stability, providing a fundamental support for the material's resistance to precipitation at low temperatures and its shape retention at high temperatures; the straight-chain alkane substituents R with 2 or 3 carbon atoms in compounds of general formula III b Its linear structure facilitates the regular arrangement of molecules, improves the structural uniformity of the system, and ensures the stability of optical performance; the R of compound of general formula IV c It encompasses different polar end groups such as -OCH3, -CN, and -OH, and achieves precise adjustment of intermolecular forces through polarity differences. This not only enhances the compatibility between components but also optimizes the dielectric properties of the material, meeting the needs of optical modulation. Compound V, as a functional supplementary component, further fills the performance gap of the multi-component complex system, complements other compounds, and strengthens the overall wide-temperature adaptability and structural stability of the matrix.

[0040] Chiral functional components, acting as regulatory units, play a crucial role through the unique structure of compounds of general formula I. Their (R)- or (S)-configurations of chiral centers can induce molecules in the matrix system to form an ordered orientation structure, overcoming the defect of easy crystallization in single-molecule arrangements. Especially at low temperatures, chiral structures can disrupt the orderly stacking of molecules, preventing low-temperature precipitation. At high temperatures, the synergistic effect of chiral structures and the molecular skeleton can suppress structural disorder caused by molecular thermal motion, maintaining system stability. Meanwhile, the chiral alkyl groups with different carbon chain lengths corresponding to R1 in the compound of general formula I can adjust the steric hindrance and interaction forces between molecules by adapting the chain length. Short-chain chiral alkyl groups reduce the viscosity of the system and improve the fluidity of the components. Medium-chain chiral alkyl groups balance the low-temperature anti-crystallization and structural order. Long-chain chiral alkyl groups enhance high-temperature stability. When combined with polar end groups such as -CN, -OCH3, and -OC2H5 corresponding to R2, the strongly polar cyano group improves the electro-optic response characteristics of the material, and the moderately polar alkoxy group enhances the compatibility with the matrix components. Chiral functional components with different configurations and different substituents can play a role alone or in combination, so as to achieve the regulation of the wide-temperature performance and optical properties of the matrix material.

[0041] The beneficial effects of this invention are:

[0042] 1. This invention effectively addresses the performance limitations of traditional matrix materials at extreme temperatures through the synergistic design of the matrix material composition and chiral functional components. The (R)- or (S)-configured chiral centers of the chiral functional components can break the regular stacking tendency of matrix molecules, preventing crystallization at low temperatures; the alkyl substituents with different carbon chain lengths can synergistically regulate intermolecular forces, with short-chain components reducing the risk of aggregation and long-chain components enhancing structural stability at high temperatures, enabling the material to maintain a uniform and stable structural state over a wide temperature range, meeting the long-term use requirements under extreme environments.

[0043] 2. In this invention, the polar end groups of the chiral functional components form a precise synergy with the matrix components. Strongly polar end groups enhance molecular dielectric uniformity and reduce light absorption loss, while moderately polar end groups improve component compatibility and prevent light scattering caused by local molecular aggregation. Simultaneously, the multi-configurational chiral components can induce molecules to form a uniform and ordered orientation structure, broadening the viewing angle range. This design enables the material to possess both high transparency and a wide viewing angle, precisely matching the visual clarity and omnidirectional observation requirements of wide-temperature-range optical functional components, thus improving the optical application performance of the components.

[0044] 3. The preparation method of this invention adopts a solvent-free mixing mode, eliminating the need for additional solvent addition and avoiding the impact of solvent residue on material properties. It also reduces cumbersome steps such as distillation to remove solvent. The process parameters for premixing, adding active components, and degassing are clearly defined and controllable. Low-temperature mixing ensures component compatibility, while high-speed stirring and precise degassing guarantee material uniformity. The overall process is simple, efficient, and low-cost, and each step is easily scalable for mass production, providing process support for the mass production of wide-temperature-range optical functional components.

[0045] 4. The wide-temperature stability and excellent optical properties of the material in this invention create a synergistic advantage. It can be well composited with UV optical adhesives to prepare high-performance light-transmitting films, and is also suitable for various applications such as intelligent building light-transmitting components and automotive light-transmitting modules. Its reliable performance in extreme high and low temperature environments fills the application gap of traditional materials in special fields such as frigid regions and high-temperature operating scenarios, providing core material support for the expansion of wide-temperature-range optical functional components and improving the market applicability of the products. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0047] Example 1: A specific preparation method for a high-performance, wide-temperature-range matrix material, comprising the following steps:

[0048] The raw material composition is shown in Table 1:

[0049] Table 1

[0050]

[0051] (1) Premixing: In a clean and dry mixing vessel, add matrix material composition II-1, II-2, II-3, III-1, III-2, IV-1, IV-2, IV-3 and V, heat to 40°C, stir at 300 r / min, mix for 10 min to obtain matrix premix;

[0052] (2) Addition of chiral components: Keep the temperature at 40℃, add chiral functional components to the matrix premix, adjust the stirring speed to 600r / min, and continue mixing for 20min to obtain the mixture;

[0053] (3) Degassing treatment: The temperature of the mixture is raised to 60°C, the vacuum degree is controlled at 0.05 kPa, degassing is performed for 10 min, the pressure is restored to normal, and the mixture is discharged after natural cooling to room temperature to obtain a high-performance main body wide temperature matrix material.

[0054] Example 2: A specific preparation method for a high-performance, wide-temperature-range matrix material, comprising the following steps:

[0055] The raw material composition is shown in Table 2:

[0056] Table 2

[0057]

[0058] (1) Premixing: In a clean and dry mixing vessel, add matrix material composition II-1, II-2, II-3, III-1, III-2, IV-1, IV-2, IV-3 and V, heat to 45℃, stir at 400 r / min, mix for 10-20 min to obtain matrix premix;

[0059] (2) Addition of chiral components: Keep the temperature at 45℃, add chiral functional components to the matrix premix, adjust the stirring speed to 700r / min, and continue mixing for 30min to obtain the mixture;

[0060] (3) Degassing treatment: The temperature of the mixture is raised to 65°C, the vacuum degree is controlled at 0.058 kPa, degassing is performed for 20 min, the pressure is restored to normal, and the mixture is discharged after natural cooling to room temperature to obtain a high-performance main body wide temperature matrix material.

[0061] Example 3: A specific preparation method for a high-performance, wide-temperature-range matrix material, comprising the following steps:

[0062] The raw material composition is shown in Table 3:

[0063] Table 3

[0064]

[0065] (1) Premixing: In a clean and dry mixing vessel, add matrix material composition II-1, II-2, II-3, III-1, III-2, IV-1, IV-2, IV-3 and V, heat to 50°C, stir at 500 r / min, mix for 20 min to obtain matrix premix;

[0066] (2) Addition of chiral components: Keep the temperature at 50°C, add chiral functional components to the matrix premix, adjust the stirring speed to 800 r / min, and continue mixing for 50 min to obtain the mixture;

[0067] (3) Degassing treatment: The temperature of the mixture is raised to 70°C, the vacuum degree is controlled at 0.1 kPa, degassing is performed for 30 min, the pressure is restored to normal, and the mixture is discharged after natural cooling to room temperature to obtain a high-performance main body wide temperature matrix material.

[0068] Example 4: The difference between Example 4 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 60g of compound I-1.

[0069] Example 5: The difference between Example 5 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 7.5g each of compounds I-1, I-2, I-3, I-4, I-5, I-6, I-7, and I-8.

[0070] Example 6: The difference between Example 6 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 30g each of compounds I-1 and I-5.

[0071] Example 7: The difference between Example 7 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 20g each of compounds I-5, I-6, and I-8.

[0072] Example 8: The difference between Example 8 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 15g each of compounds I-1, I-4, I-5, and I-7.

[0073] Example 9: The difference between Example 9 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 12g each of compounds I-1, I-3, I-4, I-6, and I-8.

[0074] Example 10: The difference between Example 10 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 10g each of compounds I-1, I-3, I-4, I-5, I-6, and I-7.

[0075] Example 11: The difference between Example 11 and Example 2 is that compounds I-1, I-2, and I-5 are replaced with 7.5g each of compounds I-1, I-2, I-3, and I-4, and 10g each of compounds I-6, I-7, and I-8.

[0076] Comparative Example 1: The difference between Comparative Example 1 and Example 2 is that compounds I-1, I-2, and I-5 were not added.

[0077] Comparative Example 2: The difference between Comparative Example 2 and Example 2 is that the total amount of compounds I-1, I-2 and I-5 added is 10g.

[0078] Comparative Example 3: The difference between Comparative Example 3 and Example 2 is that the total amount of compounds I-1, I-2 and I-5 added is 100g.

[0079] Performance testing:

[0080] 1. Low-temperature storage stability test: 50g of the prepared matrix material samples from each example and comparative example were taken and sealed in clean, dry, transparent, sealed containers, and divided into two groups for testing. The first group of samples was placed in a low-temperature constant temperature chamber at -50℃ and stored continuously for 10 days; the second group of samples was placed in a low-temperature constant temperature chamber at -40℃ and stored continuously for 1000 hours. After the test, the samples were observed for crystal precipitation, layering, or turbidity. The experimental results are shown in Table 4.

[0081] 2. High-temperature stability test: Take 30g of each sample from the examples and comparative examples, place them in a high-temperature resistant sealed quartz container, and keep them in a high-temperature oven at 120℃ for 1000h. After the test, observe whether the samples show discoloration, abnormal increase or decrease in viscosity, or phase disorder. The experimental results are shown in Table 4.

[0082] 3. Optical transmittance test: The matrix materials of each embodiment and comparative example were mixed with UV optical adhesive at a mass ratio of 1:1.2 to prepare uniform thin film samples with a thickness of 0.1 mm using the casting method. After curing at room temperature, the samples were cut into standard specimens of 50 mm × 50 mm, ensuring that the surface of the specimens was free of scratches, bubbles, and impurities. The specimens were first scanned across the entire wavelength range using a UV-Vis spectrophotometer, with the scanning range set to the visible light interval of 400 nm-760 nm and a scanning step size of 1 nm. The absorbance curve of the specimens was recorded, and the maximum absorption wavelength of the specimens was determined through the absorbance curves. Subsequently, at this maximum absorption wavelength, five different test points were selected for each specimen to test the maximum transmittance, and the average value was taken as the maximum transmittance of the specimen. Simultaneously, the arithmetic mean of the transmittance of the specimens at all test wavelengths within the full visible light range of 400 nm-760 nm was calculated as the overall average transmittance result. The experimental results are shown in Table 4.

[0083] 4. Wide-viewing-angle performance test: The standard thin film sample prepared in the optical transmittance test was used, and the test was conducted using a viewing angle meter. With the vertical direction of the sample as the 0° viewing angle, a test angle was set every 5° within the horizontal range of -90° to +90°, and the transmittance value of the sample was measured at each angle. The attenuation of transmittance for each sample at different viewing angles was recorded. The viewing angle range in which the transmittance remained above 85% of the initial vertical viewing angle transmittance was used as the wide-viewing-angle performance data. The experimental results are shown in Table 4.

[0084] Table 4 Performance Test Results

[0085]

[0086] Performance Analysis:

[0087] As can be seen from the performance test results in Table 4, the high-performance main body wide-temperature matrix material of all embodiments of the present invention exhibits superior and more balanced comprehensive characteristics in terms of low-temperature storage stability, high-temperature stability, optical transmittance, and wide viewing angle performance. Even the slightly weaker performance of Embodiment 4 is significantly better than the three comparative examples. The comparative examples, due to the fact that the addition state of the chiral functional components does not conform to the design logic of the present invention, all have obvious performance shortcomings and are difficult to meet the usage requirements of wide-temperature-range optical functional components.

[0088] The embodiments maintained a stable state with no precipitation or only slight turbidity even under extreme low-temperature environments, primarily due to the microscopic chiral induction effect of the chiral functional components. The (R)- or (S)- configuration chiral centers of the chiral functional components can disrupt the orderly stacking tendency of molecules in the matrix system. Although compounds of general formulas II, III, and IV in the matrix have a certain degree of structural regularity and are prone to aggregation and crystallization through van der Waals forces at low temperatures, the chiral centers can interfere with the orderly arrangement of molecules, preventing the formation of crystal nuclei. At the same time, the R1 substituents with different carbon chain lengths in the chiral components can synergistically regulate the steric hindrance between molecules, reduce intermolecular forces to prevent aggregation, maintain the overall structural stability of the system, and ultimately achieve the anti-precipitation effect at extreme low temperatures. In contrast, comparative examples showed that Comparative Example 1, lacking the addition of chiral functional components, resulted in a lack of chiral induction in the matrix molecules, leading to spontaneous arrangement and the formation of a large number of crystals at low temperatures. Comparative Example 2, with insufficient addition of chiral functional components and a limited number of chiral centers, was unable to completely disrupt the tendency of molecular crystallization, resulting in the formation of a small amount of crystals. Comparative Example 3, on the other hand, had an excessive addition of chiral functional components, causing too many chiral molecules to occupy matrix space and disrupt the original compatibility balance between molecules. Although no crystals appeared, the sample became noticeably turbid, and its stability decreased significantly.

[0089] The examples exhibited slight viscosity under long-term high-temperature conditions without discoloration or phase disorder, which may be due to the synergistic thermal stabilizing effect of the chiral functional component and the matrix material. The carbon chain structure of the long-chain alkyl group in the chiral functional component can enhance the hydrophobic interaction and van der Waals forces between molecules, which is equivalent to building a "thermally stable skeleton" for the molecules. This can suppress the violent thermal motion of molecules at high temperatures and prevent the viscosity of the system from increasing sharply due to molecular chain entanglement. At the same time, the synergistic effect of the chiral center and the rigid structure of the molecular skeleton can prevent molecular chain breakage or configurational transformation at high temperatures, further maintaining the homogeneity of the system. In particular, the examples with a high proportion of long-chain alkyl groups in the chiral component and thorough stirring and degassing in the preparation process have more uniform molecular mixing and better high-temperature stability. In Comparative Example 1, due to the lack of a "thermally stable framework" protected by chiral functional components, the thermal motion of matrix molecules intensifies at high temperatures, and molecular chains are prone to disordered entanglement, ultimately resulting in severe discoloration and a sharp increase in viscosity. In Comparative Example 2, the chiral functional components are insufficient, the "thermally stable framework" is weak, and the thermal stabilization effect is limited, thus resulting in moderate discoloration and increased viscosity. In Comparative Example 3, the excessive chiral functional components are prone to local aggregation at high temperatures, which disrupts the homogeneity of the system, leading to severe viscosity accompanied by slight discoloration.

[0090] The optical transmittance of the embodiments was significantly higher than that of the comparative examples, which is attributed to the optimization of the molecular orientation microstructure of the matrix system by the chiral functional components. The polar end groups of the chiral functional components can form a synergistic effect with the polar groups of the matrix components: the strongly polar -CN end groups can improve the dielectric uniformity of the molecules and reduce light absorption caused by dielectric differences; the moderately polar -OCH3 and -OC2H5 end groups can enhance the compatibility of the components, avoid the formation of light scattering centers by local molecular aggregation, and ultimately make the molecules present a uniform and ordered arrangement in the film, greatly reducing scattering and absorption during light propagation. Among them, the embodiments containing multiple chiral functional components and multi-functional synergy of polar end groups have more uniform molecular orientation and better light transmittance; even the embodiments using only a single chiral functional component have significantly higher transmittance than the comparative examples due to the chiral-induced ordered molecular arrangement. Comparative Example 1, lacking the induction of chiral functional components, exhibited disordered matrix molecular arrangement and numerous random aggregation regions, resulting in severe light scattering and the lowest transmittance. Comparative Examples 2 and 3, due to improper addition of chiral functional components and poor molecular orientation uniformity, also had low transmittance levels, significantly lower than all examples.

[0091] The wide viewing angle performance of the embodiments is significantly better than that of the comparative examples, with some embodiments even reaching near-limit viewing angle ranges. The core reason is that the chiral functional components induce a more uniform molecular domain microstructure. When multiple (R)- and (S)-configurations of chiral functional components are used in combination, the orientation direction of molecules can be synergistically controlled. Different configurations of the chiral centers can guide molecules to align in multiple directions, avoiding the viewing angle attenuation caused by molecules aligning only in a single direction. At the same time, chiral functional components with different chain lengths and polar end groups can optimize the size and distribution of molecular domains, enabling molecules to form a microstructure that is uniformly distributed in all directions in the film, thereby reducing the attenuation of transmittance when the viewing angle changes. In contrast, Comparative Example 1, due to the lack of chiral induction, has molecules arranged in random directions, and its transmittance only meets the standard within a narrower viewing angle range. Comparative Example 2 has insufficient chiral functional components, resulting in an incomplete molecular domain structure and limited viewing angle expansion. Comparative Example 3, due to excessive chiral functional components, leads to local molecular disorder and uneven distribution of molecular domains. Although its viewing angle range is slightly better than that of Comparative Examples 1 and 2, it is still lower than the performance level of the embodiments.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-performance, wide-temperature-range matrix material, characterized in that, The high-performance, wide-temperature-range matrix material comprises a matrix material composition and a chiral functional component; The chiral functional component is composed of one or more compounds of general formula I mixed in any proportion, and its general formula chemical structure is as follows: ; Where (R)- or (S)- are configuration markers; R1 represents C2H5-CH(CH3)-, C3H7-CH(CH3)-, or C4H9-CH(CH3)-; R2 represents -CN, -OCH3, or -OC2H5; The matrix material composition comprises compound II-1, compound II-2, compound II-3, compound III-1, compound III-2, compound IV-1, compound IV-2, compound IV-3, and compound V; The chemical structural formulas of compounds II-1, II-2, II-3, III-1, III-2, IV-1, IV-2, IV-3, and V are as follows: ; The weight parts of various compounds and chiral functional components in the matrix material composition of the high-performance host wide-temperature matrix material are as follows: chiral functional component: 3-8 parts, compound II-1: 6-10 parts, compound II-2: 15-19 parts, compound II-3: 16-20 parts, compound III-1: 13-17 parts, compound III-2: 17-21 parts, compound IV-1: 4-8 parts, compound IV-2: 2-6 parts, compound IV-3: 1-5 parts, and compound V: 8-12 parts.

2. The method for preparing the high-performance broad-temperature matrix material according to claim 1, characterized in that, Includes the following steps: (1) Premixing: In a clean and dry mixing vessel, add the matrix material composition, heat to 40-50℃, stir at 300-500r / min, mix for 10-20min to obtain the matrix premix; (2) Addition of chiral components: Keep the temperature at 40-50℃, add chiral functional components to the matrix premix, adjust the stirring speed to 600-800r / min, and continue mixing for 20-50min to obtain the mixture; (3) Degassing treatment: raise the temperature of the mixture to 60-70℃, control the vacuum degree at 0.05-0.1kPa, degas for 10-30min, restore normal pressure, and discharge the material after natural cooling to room temperature to obtain a high-performance main body wide temperature matrix material.

3. The application of the high-performance broad-temperature matrix material according to claim 1 in the fabrication of broad-temperature-range optical functional components, characterized in that, The wide temperature range optical functional components are used for polymer light transmittance control films, as well as optical functional layers for intelligent light transmittance components in buildings, vehicle-mounted light transmittance components, and extreme environment display devices.

Citation Information

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