CN109266017B - Preparation method of high-strength and high-performance rubber material - Google Patents
Preparation method of high-strength and high-performance rubber material Download PDFInfo
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Abstract
The invention discloses a preparation method of a high-strength and high-performance rubber material, which comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; carrying out multi-stage mixing on the methyl phenyl vinyl silicone rubber; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber.
Description
Technical Field
The invention belongs to the technical field of advanced rubber materials, and relates to a preparation method of a high-strength and high-performance rubber material.
Background
The filling of the polymer matrix with the micro-particles as the reinforcing agent to prepare the biodegradable composite material with excellent performance is a hot spot of the research in the polymer material science field in recent years. The fillers originally used were mainly inorganic minerals such as carbon black, kaolinite, silicates and clays. However, most of these fillers are harmful to the environment and even dangerous to human health. In the middle and late twentieth century, scholars in the northern part of the United states have studied the change in the reinforcing effect of rubber after the addition of cross-linked starch xanthate to rubber using starch instead of carbon black, and the results showed that starch xanthate produced the same reinforcing effect as medium-grade carbon black. The rubber processing process is changed due to the addition of the starch derivative, so that a simple, economical and feasible new way is developed for preparing the powder rubber. The crosslinked bisester xanthogen starch/rubber coprecipitate containing 3-5% of starch and 95-97% of rubber can be easily blended with various rubber compounding agents and can be processed into various rubber products with excellent performance.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a preparation method of a high-strength and high-performance rubber material, thereby overcoming the problems in the prior art.
In order to achieve the above object, the present invention provides a method for preparing a high-strength and high-performance rubber material, comprising the steps of: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material.
Preferably, in the above technical scheme, the nanocrystallization treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization treatment.
Preferably, in the above technical scheme, each 100mL of the mixed solution comprises 30-50g of straw, 40-60mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 30-50W, the ultrasonic stirring power is 800-1000W, and the ultrasonic stirring time is 5-8 h.
Preferably, in the above technical scheme, in the first mixture, by weight, 10-30 parts of straw subjected to nanocrystallization, 10-30 parts of aluminum silicate fiber and 40-50 parts of carbon black are accounted.
Preferably, in the above technical scheme, the specific process of ball milling the first mixture is as follows: the ball milling speed is 1000-1500r/min, the ball-material ratio is 10:1-15:1, and the ball milling time is 25-35h, wherein in the ball milling process, the ball milling is suspended for 20-30min every 3 h of ball milling.
Preferably, in the above technical scheme, in the second mixture, by weight, the lanthanum glutamate (DAGLa) is 5 to 10 parts, the vulcanizing agent is 1 to 4 parts, and the hydroxy silicone oil is 4 to 8 parts, and the specific process of stirring the second mixture at a high speed is as follows: the mixing temperature is 60-80 ℃, the rotating speed of the mixer is 500-800rpm, and the mixing time is 10-15 min.
Preferably, in the above technical solution, the first-stage mixing specific process is: the mixing temperature is 130-; the second stage mixing concrete process comprises the following steps: the mixing temperature is 140-; the third stage of mixing concrete process comprises: the mixing temperature is 145-155 ℃, the mixing time is 10-20min, wherein each 100 parts by weight of the methyl phenyl vinyl silicone rubber comprises 50-60 parts of the first solid additive and 8-12 parts of the second additive.
Preferably, in the above technical scheme, the specific process for performing intermediate temperature treatment on the semi-finished silicone rubber comprises: and carrying out heat treatment on the semi-finished product silicon rubber at the temperature of 130-150 ℃ for 20-30 h.
Preferably, in the above technical scheme, the specific process for performing the first-stage vulcanization on the intermediate-temperature-treated semi-finished silicone rubber comprises: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 5-8MPa, and the vulcanization temperature is 160-180 ℃.
Preferably, in the above technical solution, the specific process of performing the second-stage vulcanization on the semi-vulcanized silicone rubber is as follows: putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 175-185 ℃, and the vulcanization time is 4-5 h.
Compared with the prior art, the preparation method of the high-strength and high-performance rubber material has the following beneficial effects: the silicone rubber material is a very important polymer material, and many prior arts have been studied on the silicone rubber material, wherein, prior art CN105860536A discloses a flame-retardant fire-resistant ceramic silicone rubber, and the prior art has the following defects: the preparation process is complex, the rubber manufacturing and molding time is long, and because back mixing is needed, a mixer needs to be opened twice, so that a large amount of energy is wasted. After the composition ratio is lagged behind, only the reinforcing effect of the ceramic filler on the silicone rubber is concerned, but the problem of mixing of the ceramic filler in the rubber is not concerned, so that some ceramic fillers become a reinforcing phase in the rubber material, but some ceramic fillers form agglomeration in the rubber, so that the mechanical property of some parts of the rubber is poor, and finally, the difference between the actual strength and the theoretical strength of the modified rubber material is large. The application provides an improved preparation method of a rubber material aiming at the problems in the prior art. The preparation process is relatively simple, the manufacturing cost is low, the rubber strength is high, and the strength of the rubber material is closer to a theoretical value.
Drawings
FIG. 1 is a flow chart of a method for preparing a high strength, high performance rubber material according to the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
FIG. 1 is a flow chart of a method for preparing a high strength, high performance rubber material according to the present invention. As shown in the figure, the preparation method of the high-strength and high-performance rubber material comprises the following steps:
step 101: providing straws and carrying out nanocrystallization treatment on the straws;
step 102: mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture;
step 103: ball-milling the first mixture to obtain a first solid additive;
step 104: mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture;
step 105: stirring the second mixture at a high speed to obtain a second additive;
step 106: providing methyl phenyl vinyl silicone rubber;
step 107: performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing;
step 108: adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber;
step 109: carrying out medium temperature treatment on the semi-finished product silicon rubber;
step 110: performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and
step 111: and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material.
Example 1
The preparation method of the high-strength and high-performance rubber material comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material. The nano treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization treatment. Wherein, every 100mL of mixed solution comprises 30g of straws, 40mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 30W, the ultrasonic stirring power is 800W, and the ultrasonic stirring time is 5 h. In the first mixture, 10 parts by weight of straw subjected to nanocrystallization, 10 parts by weight of aluminum silicate fiber and 40 parts by weight of carbon black are contained. The specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1000r/min, the ball-material ratio is 10:1, and the ball milling time is 25h, wherein in the ball milling process, the ball milling is suspended for 20min every 3 hours. In the second mixture, by weight, lanthanum glutamate (DAGLA) accounts for 5 parts, a vulcanizing agent accounts for 1 part, and hydroxy silicone oil accounts for 4 parts, and the specific process for stirring the second mixture at a high speed comprises the following steps: the mixing temperature was 60 ℃, the mixer speed was 500rpm, and the mixing time was 10 min. The first-stage mixing specific process comprises the following steps: the mixing temperature is 130 ℃, and the mixing time is 10 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 140 ℃, and the mixing time is 5 min; the third stage of mixing concrete process comprises: the mixing temperature was 145 ℃ and the mixing time was 10min, wherein 50 parts of the first solid additive and 8 parts of the second additive were included per 100 parts by weight of the methyl phenyl vinyl silicone rubber. The specific process for carrying out medium temperature treatment on the semi-finished product silicon rubber comprises the following steps: and carrying out heat treatment on the semi-finished product silicon rubber at the temperature of 130 ℃ for 20 h. The specific process for carrying out the first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 5MPa and the vulcanization temperature is 160 ℃. The second-stage vulcanization process of the semi-vulcanized silicone rubber comprises the following specific steps: and putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 175 ℃, and the vulcanization time is 4 h.
Example 2
The preparation method of the high-strength and high-performance rubber material comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material. The nano treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization treatment. Wherein, every 100mL of mixed solution comprises 50g of straws, 60mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 50W, the ultrasonic stirring power is 1000W, and the ultrasonic stirring time is 8 h. In the first mixture, 30 parts by weight of straw subjected to nanocrystallization, 30 parts by weight of aluminum silicate fiber and 50 parts by weight of carbon black are contained. The specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1500r/min, the ball-material ratio is 15:1, and the ball milling time is 35h, wherein in the ball milling process, the ball milling is suspended for 30min every 3 hours. In the second mixture, by weight, lanthanum glutamate (DAGLa) is 10 parts, vulcanizing agent is 4 parts, and hydroxy silicone oil is 8 parts, and the specific process for stirring the second mixture at high speed is as follows: the mixing temperature was 80 ℃, the mixer speed was 800rpm, and the mixing time was 15 min. The first-stage mixing specific process comprises the following steps: the mixing temperature is 140 ℃, and the mixing time is 20 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 150 ℃, and the mixing time is 10 min; the third stage of mixing concrete process comprises: the mixing temperature was 155 ℃ and the mixing time was 20min, wherein 60 parts of the first solid additive and 12 parts of the second additive were included per 100 parts by weight of the methyl phenyl vinyl silicone rubber. The specific process for carrying out medium temperature treatment on the semi-finished product silicon rubber comprises the following steps: and carrying out heat treatment on the semi-finished product silicon rubber at the temperature of 150 ℃ for 30 h. The specific process for carrying out the first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 8MPa and the vulcanization temperature is 180 ℃. The second-stage vulcanization process of the semi-vulcanized silicone rubber comprises the following specific steps: and putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 185 ℃, and the vulcanization time is 5 hours.
Example 3
The preparation method of the high-strength and high-performance rubber material comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material. The nano treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization treatment. Wherein, every 100mL of mixed solution comprises 35g of straws, 45mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 35W, the ultrasonic stirring power is 850W, and the ultrasonic stirring time is 6 h. In the first mixture, 15 parts by weight of straw subjected to nanocrystallization, 15 parts by weight of aluminum silicate fiber and 45 parts by weight of carbon black are contained. The specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1200r/min, the ball-to-material ratio is 12:1, and the ball milling time is 30h, wherein in the ball milling process, the ball milling is suspended for 25min every 3 h of ball milling. In the second mixture, by weight, lanthanum glutamate (DAGLA) accounts for 6 parts, a vulcanizing agent accounts for 2 parts, and hydroxy silicone oil accounts for 5 parts, and the specific process for stirring the second mixture at a high speed comprises the following steps: the mixing temperature was 65 ℃, the mixer speed was 600rpm, and the mixing time was 12 min. The first-stage mixing specific process comprises the following steps: the mixing temperature is 132 ℃, and the mixing time is 12 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 142 ℃, and the mixing time is 6 min; the third stage of mixing concrete process comprises: the mixing temperature was 148 ℃ and the mixing time was 12min, wherein 55 parts of the first solid additive and 9 parts of the second additive were included per 100 parts by weight of the methyl phenyl vinyl silicone rubber. The specific process for carrying out medium temperature treatment on the semi-finished product silicon rubber comprises the following steps: and carrying out heat treatment on the semi-finished silicone rubber at the temperature of 135 ℃ for 25 h. The specific process for carrying out the first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 6MPa and the vulcanization temperature is 165 ℃. The second-stage vulcanization process of the semi-vulcanized silicone rubber comprises the following specific steps: and putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 170 ℃, and the vulcanization time is 4.5 h.
Example 4
The preparation method of the high-strength and high-performance rubber material comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate (DAGLA), a vulcanizing agent, hydroxyl silicone oil and a processing aid to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; and carrying out second-stage vulcanization on the semi-vulcanized silicone rubber to obtain the high-strength and high-performance rubber material. The nano treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization treatment. Wherein, every 100mL of mixed solution comprises 40g of straws, 50mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 40W, the ultrasonic stirring power is 900W, and the ultrasonic stirring time is 7 h. In the first mixture, 20 parts by weight of straw subjected to nanocrystallization, 20 parts by weight of aluminum silicate fiber and 45 parts by weight of carbon black are contained. The specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1200r/min, the ball-material ratio is 13:1, and the ball milling time is 30h, wherein in the ball milling process, the ball milling is suspended for 25min every 3 h of ball milling. In the second mixture, by weight, lanthanum glutamate (DAGLa) accounts for 8 parts, a vulcanizing agent accounts for 3 parts, and hydroxy silicone oil accounts for 6 parts, and the specific process for stirring the second mixture at a high speed comprises the following steps: the mixing temperature was 70 ℃, the mixer speed was 700rpm, and the mixing time was 13 min. The first-stage mixing specific process comprises the following steps: the mixing temperature is 135 ℃, and the mixing time is 15 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 145 ℃, and the mixing time is 8 min; the third stage of mixing concrete process comprises: the mixing temperature is 150 ℃, the mixing time is 15min, and 55 parts of the first solid additive and 10 parts of the second additive are contained in 100 parts by weight of the methyl phenyl vinyl silicone rubber. The specific process for carrying out medium temperature treatment on the semi-finished product silicon rubber comprises the following steps: and carrying out heat treatment on the semi-finished product silicon rubber at the temperature of 140 ℃ for 25 h. The specific process for carrying out the first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 7MPa and the vulcanization temperature is 170 ℃. The second-stage vulcanization process of the semi-vulcanized silicone rubber comprises the following specific steps: and putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 180 ℃, and the vulcanization time is 4.5 hours.
Comparative example 1
The difference from the embodiment 1 is that: the first mixture does not contain aluminosilicate fibers.
Comparative example 2
The difference from the embodiment 1 is that: when the methyl phenyl vinyl silicone rubber is subjected to the first-stage mixing, the first solid additive and the second additive are simultaneously added to the mixed rubber.
Comparative example 3
The difference from the embodiment 1 is that: the semi-finished silicone rubber is not subjected to medium temperature treatment.
Comparative example 4
The difference from the embodiment 1 is that: the mix was not subjected to a second stage of mixing.
Comparative example 5
The difference from the embodiment 1 is that: every 100mL of the mixed solution comprises 70g of straws, 10mL of sodium hydroxide solution and the balance of hydrogen peroxide.
Comparative example 6
The difference from the embodiment 1 is that: the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is not carried out, the ultrasonic stirring power is 500W, and the ultrasonic stirring time is 12 h.
Comparative example 7
The difference from the embodiment 1 is that: 50 parts of nano-treated straw, 50 parts of aluminum silicate fiber and 50 parts of carbon black.
Comparative example 8
The difference from the embodiment 1 is that: the specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1800r/min, the ball-material ratio is 20:1, and the ball milling time is 40 h.
Comparative example 9
The difference from the embodiment 1 is that: in the second mixture, lanthanum glutamate (DAGLa) is 12 parts, a vulcanizing agent is 1 part, and hydroxy silicone oil is 2 parts by weight.
Comparative example 10
The difference from the embodiment 1 is that: the specific process for stirring the second mixture at high speed comprises the following steps: the mixing temperature was 30 ℃, the mixer speed was 1000rpm, and the mixing time was 20 min.
Comparative example 11
The difference from the embodiment 1 is that: the first-stage mixing specific process comprises the following steps: the mixing temperature is 145 ℃, and the mixing time is 30 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 135 ℃, and the mixing time is 15 min; the third stage of mixing concrete process comprises: the mixing temperature is 140 ℃, and the mixing time is 30 min.
Comparative example 12
The difference from the embodiment 1 is that: the first solid additive is 70 parts and the second additive is 20 parts per 100 parts by weight of the methyl phenyl vinyl silicone rubber.
Comparative example 13
The difference from the embodiment 1 is that: the specific process for carrying out medium temperature treatment on the semi-finished product silicon rubber comprises the following steps: and carrying out heat treatment on the semi-finished product silicon rubber at the temperature of 160 ℃ for 10 h.
Comparative example 14
The difference from the embodiment 1 is that: the specific process for carrying out the first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (3) vulcanizing the semi-finished product silicon rubber subjected to medium-temperature treatment at high temperature and high pressure, wherein the vulcanization pressure is 10MPa and the vulcanization temperature is 190 ℃.
Comparative example 15
The difference from the embodiment 1 is that: the second-stage vulcanization process of the semi-vulcanized silicone rubber comprises the following specific steps: and (3) putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 165 ℃, and the vulcanization time is 2 hours.
Tensile strength (MPa), elongation at break and tear strength (N/mm) were tested for examples 1-4 and comparative example 15. The results are shown in Table 1.
TABLE 1
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (1)
1. A preparation method of a high-strength and high-performance rubber material comprises the following steps: providing straws and carrying out nanocrystallization treatment on the straws; mixing the straws subjected to nanocrystallization treatment, aluminum silicate fibers and carbon black to obtain a first mixture; ball-milling the first mixture to obtain a first solid additive; mixing lanthanum glutamate DAGLA, a vulcanizing agent and hydroxyl silicone oil to obtain a second mixture; stirring the second mixture at a high speed to obtain a second additive; providing methyl phenyl vinyl silicone rubber; performing multi-stage mixing on the methyl phenyl vinyl silicone rubber, wherein when the methyl phenyl vinyl silicone rubber is subjected to first-stage mixing, a first solid additive is added into the mixed rubber, and then the mixed rubber added with the first solid additive is subjected to second-stage mixing; adding a second additive into the mixed rubber subjected to the second-stage mixing, and then performing third-stage mixing to obtain a semi-finished product of silicon rubber; carrying out medium temperature treatment on the semi-finished product silicon rubber; performing first-stage vulcanization on the semi-finished silicone rubber subjected to medium-temperature treatment to obtain semi-vulcanized silicone rubber; the second-stage vulcanization of the semi-vulcanized silicone rubber is carried out to obtain the high-strength and high-performance rubber material, and the nano treatment of the straw comprises the following steps: crushing straws, and mixing the crushed straws with a nanocrystallization processing aid to obtain a mixed solution, wherein the nanocrystallization processing aid comprises a sodium hydroxide solution and hydrogen peroxide; carrying out ultrasonic stirring on the mixed solution; filtering the mixed solution after ultrasonic stirring to obtain the straw subjected to nanocrystallization, wherein each 100mL of the mixed solution comprises 40g of straw, 50mL of sodium hydroxide solution and the balance of hydrogen peroxide, and the specific ultrasonic stirring process comprises the following steps: during ultrasonic stirring, ultraviolet irradiation is carried out, the ultraviolet irradiation power is 40W, the ultrasonic stirring power is 900W, the ultrasonic stirring time is 7h, in the first mixture, the straw subjected to nanocrystallization treatment accounts for 20 parts by weight, the aluminum silicate fiber accounts for 20 parts by weight, the carbon black accounts for 45 parts by weight, and the specific process for ball milling the first mixture comprises the following steps: the ball milling speed is 1200r/min, the ball-material ratio is 13:1, the ball milling time is 30h, wherein in the ball milling process, the ball milling is suspended for 25min every 3 hours, in the second mixture, by weight, 8 parts of lanthanum glutamate DAGLA, 3 parts of vulcanizing agent and 6 parts of hydroxyl silicone oil are added, and the specific process for stirring the second mixture at a high speed comprises the following steps: the mixing temperature is 70 ℃, the rotating speed of the mixer is 700rpm, the mixing time is 13min, and the first-stage mixing specific process comprises the following steps: the mixing temperature is 135 ℃, and the mixing time is 15 min; the second stage mixing concrete process comprises the following steps: the mixing temperature is 145 ℃, and the mixing time is 8 min; the third stage of mixing concrete process comprises: the mixing temperature is 150 ℃, the mixing time is 15min, wherein each 100 parts by weight of the methyl phenyl vinyl silicone rubber comprises 55 parts of a first solid additive and 10 parts of a second additive, and the specific process for performing medium-temperature treatment on the semi-finished silicone rubber comprises the following steps: carrying out heat treatment on the semi-finished product silicon rubber at the heat treatment temperature of 140 ℃ for 25h, wherein the specific process for carrying out first-stage vulcanization on the semi-finished product silicon rubber after the medium-temperature treatment comprises the following steps: and (2) carrying out high-temperature and high-pressure vulcanization on the semi-finished silicon rubber after the medium-temperature treatment, wherein the vulcanization pressure is 7MPa, the vulcanization temperature is 170 ℃, and the specific process for carrying out the second-stage vulcanization on the semi-vulcanized silicon rubber comprises the following steps: and putting the semi-vulcanized silicone rubber into an oven, wherein the vulcanization temperature is 180 ℃, and the vulcanization time is 4.5 hours.
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