High-fog and high-light-transmittance diffusion resin and preparation method thereof

Abstract

The invention relates to high-fog and high-light-transmittance diffusion resin and a preparation method thereof, and belongs to the technical field of high polymer materials. A mixed system with certain refraction and scattering effects is formed by utilizing the incompatibility between polypropylene and polycarbonate, and the surface of talcum powder is coated with organic silicon and polypropylene chain segments, so that the nucleating effect of the talcum powder can be exerted, the transparency and mechanical strength of the material are improved, and the mechanical property of the material is improved. The compatibility of the talcum powder and a resin system can also be improved, the dispersion uniformity of the talcum powder is further improved, so that the light transmission uniformity and the mechanical property are improved, and the organic silicon layer and the polypropylene layer coated on the surface of the talcum powder can enable light to be refracted and penetrated for multiple times, so that the light dispersion effect and the dodging and light transmission effects are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of high fog high light diffusion resin and its preparation method, belong to high polymer material technical field. BACKGROUND

[0002] Polypropylene material is one of four general plastics, it has chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear resistance processing performance etc. characteristics, therefore be widely used in mechanical equipment, automobile, household appliance, textile equipment, chemical industry, aerospace, mining metallurgy, agriculture, forestry, fishery, food processing etc. field. Because polypropylene material is low in price, at present also be applied to light diffusion material field.

[0003] Light diffusion material refers to the material that can convert point, line light source into line, surface light source, generally by dispersing light diffusion particle with different refractive index of base material in transparent base material to prepare, early more for liquid crystal display backlight material, also called light scattering material or light scattering material. At present, light diffusion material has been used for light emitting diode (LED) lighting. LED lighting is stronger than liquid crystal backlight, and has higher soft light performance; light diffusion material used for LED lighting must minimize light loss while diffusing light, and has good toughness.

[0004] At present, polypropylene material with high haze is generally used as matrix, and organic silicon light scattering agent is added by blending method to prepare polypropylene light diffusion material. However, the impact resistance of the polypropylene light diffusion material prepared by this method is poor, which seriously affects the service life. SUMMARY

[0005] The present application aims to provide a kind of high fog high light diffusion resin and its preparation method, to meet the problem that light diffusion performance and mechanical properties cannot be considered simultaneously for the light diffusion material prepared by taking polypropylene as matrix.

[0006] The present application provides a kind of high fog high light diffusion resin, which is composed of homopolymer polypropylene, polycarbonate and functionalized talc powder;The preparation method of the functionalized talc powder is as follows: the talc powder is modified by amino silane coupling agent to obtain amino modified talc powder;Then melt extrude the amino modified talc powder and maleic anhydride grafted polypropylene to obtain maleic acid grafted polypropylene modified talc powder;Finally, melt extrude the maleic acid grafted polypropylene modified talc powder and poly N 1 , N 4 Bis [3- (triethoxysilyl) propyl] maleic acid amide to obtain functionalized talc powder.

[0007] Preferably, the mass ratio of the homopolymer polypropylene, polycarbonate and functionalized talc powder is 100:2~3:3~5.

[0008] Preferably, the homopolypropylene has a light transmittance of 85-88%, a haze of 15-17%, and a melt flow rate of 3-5 g / 10 min under the test conditions of 230℃ and a load of 2.16 kg; and the polycarbonate has a light transmittance of 90-92%, a haze of 4-5%, and a melt flow rate of 11-13 g / 10 min under the test conditions of 300℃ and a load of 1.2 kg.

[0009] Preferably, the talc powder is modified by an amino silane coupling agent as follows: the talc powder, 3-aminopropyl triethoxysilane, and a solvent are heated to 100-105℃, and mixed for 15-18 h to obtain the amino-modified talc powder; the mass ratio of the talc powder to 3-aminopropyl triethoxysilane is 1:2-3.

[0010] Preferably, the talc powder has an average particle size of 0.5-0.8 μm.

[0011] Preferably, the temperature for melt extrusion of the amino-modified talc powder and the maleic anhydride grafted polypropylene is 210-215℃; the maleic anhydride grafted polypropylene has a maleic anhydride content of 0.8-1.2%, and a melt index of 5-8 g / 10 min under the test conditions of 230℃ and a load of 2.16 kg.

[0012] Preferably, the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1.

[0013] Preferably, the mass ratio of the maleic anhydride grafted polypropylene modified talc powder to N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide is 1:0.15-0.25; the maleic anhydride grafted polypropylene modified talc powder and N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide are melt extruded at a temperature of 210-215℃.

[0014] Preferably, the poly-N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide is prepared as follows: 3-aminopropyl triethoxysilane and maleic anhydride in a molar ratio of 2:1 and a solvent are mixed, and then benzoyl peroxide is added, and the mixture is heated to 140-145℃ and mixed for 3-5 h to obtain the poly-N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide.

[0015] The application further provides a preparation method of the high-haze high-transparency diffusion resin, comprising the following steps: uniformly mixing raw materials of the high-haze high-transparency diffusion resin according to the composition ratio, and then melt-extruding to obtain the high-haze high-transparency diffusion resin.

[0016] The application has the following advantages: the application utilizes the incompatibility between polypropylene and polycarbonate to form a mixed system with certain refraction and scattering effects, and by coating the surface of talc powder with organosilicon and polypropylene segments, the nucleation of talc powder can be achieved, the transparency and mechanical strength of the material can be improved, the compatibility between talc powder and the resin system can be improved, the dispersion uniformity can be further improved, the light transmission uniformity and mechanical properties can be improved, and the organosilicon layer and the polypropylene layer coated on the surface of talc powder can make light refract and penetrate multiple times, improve the light scattering effect, and improve the light homogenization and transmission effect. DETAILED DESCRIPTION

[0017] The following examples are intended to further illustrate the present application, but not to limit the scope of the present application. EXAMPLE

[0018] The high-haze high-transparency diffusion resin of the example is composed of homopolymer polypropylene, polycarbonate and functionalized talc powder, and the mass ratio of the homopolymer polypropylene, the polycarbonate and the functionalized talc powder is 100:2:3; the light transmittance of the homopolymer polypropylene is 85%, the haze is 15%, and the melt flow rate obtained under the condition of 230℃ and a load of 2.16kg is 3g / 10min; the light transmittance of the polycarbonate is 90%, the haze is 4%, and the melt flow rate obtained under the condition of 300℃ and a load of 1.2kg is 11g / 10min; and the preparation method of the functionalized talc powder is as follows: (1) 3-aminopropyl triethoxysilane and maleic anhydride with a molar ratio of 2:1 are added into a reaction kettle, then anhydrous N,N-dimethylformamide is added, and after stirring uniformly, benzoyl peroxide (the molar amount of benzoyl peroxide is 1.5% of the molar amount of 3-aminopropyl triethoxysilane) is added, then nitrogen is introduced into the reaction kettle, heated to 140℃, and stirred for 3h, then after cooling to room temperature, a large amount of deionized water is added, a precipitate is separated out, filtered, dissolved with ethanol, filtered again, and the filtrate is distilled under reduced pressure to obtain poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide; (2) talc powder with an average particle size of 0.5μm, 3-aminopropyl triethoxysilane and anhydrous toluene with a mass ratio of 1:2:85 are added into a reaction kettle, heated to 100℃, and stirred for 15h, then after cooling to room temperature, filtered, washed with ethanol, and dried to obtain amino-modified talc powder; (3) After the amino-modified talc powder and the maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene is 0.8%, and the melt index of the maleic anhydride grafted polypropylene is 5 g / 10 min under the test conditions of a temperature of 230 ℃ and a load of 2.16 kg) are stirred uniformly, the maleic anhydride grafted polypropylene modified talc powder is obtained by melt extrusion in a twin-screw extruder at 210 ℃; wherein the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1; (4) After the maleic anhydride grafted polypropylene modified talc powder and the poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide with a mass ratio of 1:0.15 are stirred uniformly, the functionalized talc powder is obtained by melt extrusion in a twin-screw extruder at 210 ℃. Example

[0019] The high-haze high-transmittance diffusion resin of the present example is composed of homopolypropylene, polycarbonate and functionalized talc powder, and the mass ratio of the homopolypropylene, the polycarbonate and the functionalized talc powder is 100:3:4; the transmittance of the homopolypropylene is 85%, the haze is 15%, and the melt flow rate of the homopolypropylene is 3 g / 10 min under the test conditions of a temperature of 230 ℃ and a load of 2.16 kg; the transmittance of the polycarbonate is 90%, the haze is 4%, and the melt flow rate of the polycarbonate is 11 g / 10 min under the test conditions of a temperature of 300 ℃ and a load of 1.2 kg; and the preparation method of the functionalized talc powder is as follows: (1) 3-aminopropyl triethoxysilane and maleic anhydride with a molar ratio of 2:1 are added into a reaction kettle, then anhydrous N, N-dimethylformamide is added, and after being stirred uniformly, benzoyl peroxide (the molar amount of the benzoyl peroxide is 1.5% of the molar amount of the 3-aminopropyl triethoxysilane) is added, then nitrogen is introduced into the reaction kettle, heated to 140 ℃, and stirred for 4 h, then after being cooled to room temperature, a large amount of deionized water is added, a precipitate is separated out, filtered, dissolved with ethanol, filtered again, and the filtrate is distilled under reduced pressure to obtain poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide; (2) Talc powder with an average particle size of 0.6 μm, 3-aminopropyl triethoxysilane and anhydrous toluene with a mass ratio of 1:3:88 are added into a reaction kettle, heated to 102 ℃, and stirred for 16 h, then after being cooled to room temperature, the filter cake is washed with ethanol, and after being dried, the amino-modified talc powder is obtained. (3) After the amino-modified talc powder and the maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene is 0.8%, and the melt index of the maleic anhydride grafted polypropylene is 5 g / 10 min under the test conditions of a temperature of 230 ℃ and a load of 2.16 kg) are stirred uniformly, the maleic anhydride grafted polypropylene modified talc powder is obtained by melt extrusion in a twin-screw extruder at 210 ℃; wherein the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1; (4) After the maleic anhydride grafted polypropylene modified talc powder and the poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide with a mass ratio of 1:0.19 are stirred uniformly, the functionalized talc powder is obtained by melt extrusion in a twin-screw extruder at 210 ℃. Example

[0020] The high-haze high-transmittance diffusion resin of the present example is composed of homopolypropylene, polycarbonate and functionalized talc powder, and the mass ratio of the homopolypropylene, the polycarbonate and the functionalized talc powder is 100:3:5; the transmittance of the homopolypropylene is 85%, the haze is 15%, and the melt flow rate of the homopolypropylene is 3 g / 10 min under the test conditions of a temperature of 230 ℃ and a load of 2.16 kg; the transmittance of the polycarbonate is 90%, the haze is 4%, and the melt flow rate of the polycarbonate is 11 g / 10 min under the test conditions of a temperature of 300 ℃ and a load of 1.2 kg; and the preparation method of the functionalized talc powder is as follows: (1) 3-aminopropyl triethoxysilane and maleic anhydride with a molar ratio of 2:1 are added into a reaction kettle, then anhydrous N, N-dimethylformamide is added, and after being stirred uniformly, benzoyl peroxide (the molar amount of the benzoyl peroxide is 1.5% of the molar amount of the 3-aminopropyl triethoxysilane) is added, then nitrogen is introduced into the reaction kettle, heated to 140 ℃, and stirred for 5 h, then after being cooled to room temperature, a large amount of deionized water is added, a precipitate is separated out, filtered, dissolved with ethanol, filtered again, and the filtrate is distilled under reduced pressure to obtain poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide; (2) Talc powder with an average particle size of 0.8 μm, 3-aminopropyl triethoxysilane and anhydrous toluene with a mass ratio of 1:3:90 are added into a reaction kettle, heated to 105 ℃, and stirred for 18 h, then after being cooled to room temperature, the filter cake is washed with ethanol, and after being dried, the amino-modified talc powder is obtained. (3) The amino-modified talc powder and maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene is 0.8%, and the melt index is 5 g / 10 min under the test conditions of a temperature of 230°C and a load of 2.16 kg) are stirred uniformly, and then added into a twin-screw extruder to be melt-extruded at 210°C to obtain the maleic acid grafted polypropylene modified talc powder; wherein the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1; (4) The maleic acid grafted polypropylene modified talc powder and poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide in a mass ratio of 1:0.25 are stirred uniformly, and then added into a twin-screw extruder to be melt-extruded at 210°C to obtain the functionalized talc powder.

[0021] Comparative Example 1 The high-haze high-transmission diffusion resin of the present comparative example is different from the high-haze high-transmission diffusion resin of Example 1 only in that the preparation method of the functionalized talc powder used in the high-haze high-transmission diffusion resin of the present comparative example is as follows: (1) 3-aminopropyl triethoxysilane and maleic anhydride in a molar ratio of 2:1 are added into a reaction kettle, and then anhydrous N, N-dimethylformamide is added. After stirring uniformly, benzoyl peroxide (the molar amount of the benzoyl peroxide is 1.5% of the molar amount of the 3-aminopropyl triethoxysilane) is added. Then, nitrogen is introduced into the reaction kettle, heated to 140°C, and stirred for 3 h. After cooling to room temperature, a large amount of deionized water is added, and a precipitate is separated out. The filter cake is dissolved with ethanol, filtered again, and the filtrate is distilled under reduced pressure to obtain poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide; (2) Talc powder with an average particle size of 0.5 μm, 3-aminopropyl triethoxysilane, and anhydrous toluene in a mass ratio of 1:2:85 are added into a reaction kettle, heated to 100°C, and stirred for 15 h. After cooling to room temperature, the filter cake is washed with ethanol, and dried to obtain the amino-modified talc powder; (3) The amino-modified talc powder and maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene is 0.8%, and the melt index is 5 g / 10 min under the test conditions of a temperature of 230°C and a load of 2.16 kg) are stirred uniformly, and then added into a twin-screw extruder to be melt-extruded at 210°C to obtain the maleic acid grafted polypropylene modified talc powder; wherein the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1; 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide in a mass ratio of 1:0.15 are stirred uniformly to obtain the functionalized talc powder.

[0022] Comparative Example 2 The high-haze high-transmission diffusing resin of the present comparative example differs from the high-haze high-transmission diffusing resin of Example 1 only in that the functionalized talc used in the high-haze high-transmission diffusing resin of the present comparative example is prepared as follows: talc having an average particle size of 0.5 μm, 3-aminopropyltriethoxysilane, and anhydrous toluene are added to a reaction kettle in a mass ratio of 1:2:85, heated to 100°C, stirred for 15 h, cooled to room temperature, filtered, the filter cake is washed with ethanol, and dried to obtain the functionalized talc.

[0023] Comparative Example 3 The high-haze high-transmission diffusing resin of the present comparative example differs from the high-haze high-transmission diffusing resin of Example 1 only in that the functionalized talc used in the high-haze high-transmission diffusing resin of the present comparative example is prepared as follows: (1) talc having an average particle size of 0.5 μm, 3-aminopropyltriethoxysilane, and anhydrous toluene are added to a reaction kettle in a mass ratio of 1:2:85, heated to 100°C, stirred for 15 h, cooled to room temperature, filtered, the filter cake is washed with ethanol, and dried to obtain the amino-modified talc; (2) the amino-modified talc and maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene is 0.8%, and the melt index is 5 g / 10 min under test conditions of a temperature of 230°C and a load of 2.16 kg) are stirred uniformly and then added to a twin-screw extruder, and melted and extruded at 210°C to obtain the functionalized talc; wherein the ratio of the amino molar amount of the amino-modified talc to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:1.

[0024] Comparative Example 4 The high-haze high-transmission diffusing resin of the present comparative example differs from the high-haze high-transmission diffusing resin of Example 1 only in that the functionalized talc used in the high-haze high-transmission diffusing resin of the present comparative example is prepared as follows: (1) 3-aminopropyltriethoxysilane and maleic anhydride are added to a reaction kettle in a molar ratio of 2:1, then anhydrous N,N-dimethylformamide is added, stirred uniformly, then benzoyl peroxide (the molar amount of the benzoyl peroxide is 1.5% of the molar amount of the 3-aminopropyltriethoxysilane) is added, then nitrogen gas is introduced into the reaction kettle, heated to 140°C, stirred for 3 h, cooled to room temperature, then a large amount of deionized water is added, a precipitate is separated out, filtered, the filter cake is dissolved in ethanol, filtered again, and the filtrate is distilled under reduced pressure to obtain poly N 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide; (2) The talc powder with an average particle size of 0.5 μm, 3-aminopropyl triethoxysilane and anhydrous toluene with a mass ratio of 1:2:85 were added into a reaction kettle, heated to 100°C, stirred for 15 h, cooled to room temperature, filtered, the filter cake was washed with ethanol, and dried to obtain the amino-modified talc powder; (3) The amino-modified talc powder, maleic anhydride grafted polypropylene (the maleic anhydride content of the maleic anhydride grafted polypropylene was 0.8%, and the melt index was 5 g / 10 min under the test conditions of a temperature of 230°C and a load of 2.16 kg) and polyN 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide were stirred uniformly and then added into a twin-screw extruder, and melt-extruded at 210°C to obtain the functionalized talc powder; the ratio of the amino molar amount of the amino-modified talc powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene was 1:1, and the mass ratio of the amino-modified talc powder to the polyN 1 , N 4 bis[3-(triethoxysilyl)propyl]maleamide was 1:0.15.

[0025] Effect Example In order to investigate the optical properties and mechanical properties of the high-haze high-transmittance diffusion resin of each example and the comparative example, each raw material of the high-haze high-transmittance diffusion resin of each example and the comparative example was stirred uniformly according to the composition ratio, and then added into a twin-screw extruder, and melt-extruded at 230°C to obtain the high-haze high-transmittance diffusion resin, and then the haze, the transmittance, the ultraviolet transmittance, the tensile strength and the impact strength of the high-haze high-transmittance diffusion resin were tested; wherein the haze and the transmittance were tested according to the method in the standard GB / T 2410-2008, the tensile strength was tested according to the method in the standard ISO 527, and the notched impact strength was tested according to the method in the standard ISO 179-1. The test results of the optical properties and the mechanical properties of the high-haze high-transmittance diffusion resin of each example and the comparative example are shown in Table 1.

[0026] Table 1 Optical properties and mechanical properties of the high-haze high-transmittance diffusion resin High haze high light transmittance diffusion resin Haze (%) Light transmittance (%) Ultraviolet light transmittance (%) Tensile strength (MPa) Notched Izod impact strength (kJ / m 2 ) Example 1 96.2 81.7 0.15 38.4 10.2 Example 2 95.3 82.6 0.13 38.7 9.9 Example 3 95.7 82.3 0.16 38.2 10.0 Comparative Example 1 26.1 45.6 1.58 21.4 4.1 Comparative Example 2 31.8 44.2 1.62 23.5 3.8 Comparative Example 3 28.4 51.3 1.47 24.2 3.3 Comparative Example 4 25.9 42.8 1.35 22.8 4.4 As shown in Table 1, the high-haze high-transmittance diffusion resin has good optical properties and mechanical properties. The incompatible polypropylene and polycarbonate are used to form a mixed system with certain refractive and scattering effects. The surface of the talc is coated with a layer of organic silicon and polypropylene segments, which can not only play a nucleating role of talc to improve the transparency and mechanical strength of the material, but also improve the compatibility of talc and the resin system, further improve the uniformity of dispersion, thereby improving the uniformity of light transmission and mechanical properties. Moreover, the organic silicon layer and the polypropylene layer coated on the surface of the talc can make the light refract and penetrate multiple times, improve the light dispersion effect, and improve the light transmission and uniformity.

Claims

1. A resin having high haze and high light transmittance diffusion, characterized by comprising: Consists of homopolymer polypropylene, polycarbonate and functionalized talc powder; the preparation method of the functionalized talc powder is as follows: talc powder is modified by amino silane coupling agent to obtain amino modified talc powder; then the amino modified talc powder and maleic anhydride grafted polypropylene are melt extruded to obtain maleic acid grafted polypropylene modified talc powder; finally, the maleic acid grafted polypropylene modified talc powder and poly N 1 , N 4 Bis [3- (triethoxysilyl) propyl] maleamide are melt extruded to obtain functionalized talc powder.

2. The high-haze high light transmittance diffusing resin according to claim 1, wherein The mass ratio of the homopolypropylene, the polycarbonate and the functionalized talcum powder is 100:2-3:3-5.

3. The high-haze high light transmittance diffusing resin according to claim 1 or 2, characterized by, The homopolypropylene has a light transmittance of 85-88%, a haze of 15-17% and a melt flow rate of 3-5 g / 10 min tested at 230 DEG C under a load of 2.16 kg; the polycarbonate has a light transmittance of 90-92%, a haze of 4-5% and a melt flow rate of 11-13 g / 10 min tested at 300 DEG C under a load of 1.2 kg.

4. The high-haze high light transmittance diffusing resin according to claim 1, wherein The talcum powder is modified by an amino silane coupling agent in the following manner: the talcum powder, 3-aminopropyl triethoxysilane and a solvent are heated to 100-105 DEG C, mixed and reacted for 15-18 h to obtain an amino-modified talcum powder; the mass ratio of the talcum powder and the 3-aminopropyl triethoxysilane is 1:2-3.

5. The high-haze, high light transmittance diffusing resin according to claim 4, wherein The average particle size of the talcum powder is 0.5-0.8 mu m.

6. The high-haze, high light transmittance diffusing resin according to claim 1, wherein The temperature for melt extruding the amino-modified talcum powder and the maleic anhydride grafted polypropylene is 210-215 DEG C; the maleic anhydride grafted polypropylene has a maleic anhydride content of 0.8-1.2% and a melt index of 5-8 g / 10 min tested at 230 DEG C under a load of 2.16 kg.

7. The high-haze, high light transmittance diffusing resin according to claim 6, wherein The ratio of the amino molar amount of the amino-modified talcum powder to the maleic anhydride molar amount of the maleic anhydride grafted polypropylene is 1:

1.

8. The high-haze, high light transmittance diffusing resin according to claim 1, wherein Maleic acid grafted polypropylene modified talc and N 1 , N 4 The mass ratio of bis[3-(triethoxysilyl)propyl]maleamide is 1:0.15~0.25; the temperature of maleic acid grafted polypropylene modified talc and N 1 , N 4 The temperature of bis[3-(triethoxysilyl)propyl]maleamide melt extrusion is 210~215℃.

9. The high-haze, high light transmittance diffusing resin according to claim 1 or 8, wherein, The poly N 1 , N 4 The preparation method of bis[3-(triethoxysilyl)propyl]maleamide is as follows: 3-aminopropyl triethoxysilane and maleic anhydride in a molar ratio of 2:1 and a solvent are uniformly mixed, benzoyl peroxide is added, heated to 140~145℃, and mixed and reacted for 3~5h to obtain poly N 1 , N 4 Bis[3-(triethoxysilyl)propyl]maleamide.

10. A method for producing a high-haze high-transmission diffusing resin as claimed in any one of claims 1 to 9, characterized by, The method comprises the following steps: The raw materials in the high-haze high-transmittance diffusion resin are mixed according to the composition ratio, and then melt extruded to obtain the high-haze high-transmittance diffusion resin.