CN117511226A - Preparation method of vehicle window glass sealing strip for inhibiting wind vibration effect - Google Patents
Preparation method of vehicle window glass sealing strip for inhibiting wind vibration effect Download PDFInfo
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- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 239000005357 flat glass Substances 0.000 title claims abstract description 36
- 230000000694 effects Effects 0.000 title claims abstract description 27
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 43
- 238000004073 vulcanization Methods 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 13
- 239000004945 silicone rubber Substances 0.000 claims abstract description 13
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 9
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 9
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000004898 kneading Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 7
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000002041 carbon nanotube Substances 0.000 claims description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- NRVFHZGBTDXOEY-UHFFFAOYSA-N 2-methylprop-2-enoic acid;zinc Chemical compound [Zn].CC(=C)C(O)=O NRVFHZGBTDXOEY-UHFFFAOYSA-N 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000008117 stearic acid Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims 3
- 230000003078 antioxidant effect Effects 0.000 claims 3
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims 1
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001021 polysulfide Chemical group 0.000 description 1
- 239000005077 polysulfide Chemical group 0.000 description 1
- 150000008117 polysulfides Chemical group 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A preparation method of a vehicle window glass sealing strip for inhibiting wind vibration effect comprises the following steps: s1: adding fluororubber into an open mill, and adding magnesium hydroxide for 3-5 times after rubber breaking is completed to obtain premixed rubber A; s2: adding methyl vinyl silicone rubber into a preheated kneader, adding a reinforcing filling system and a structure control agent for 3-5 times after the rubber breaking is completed, adding the premixed rubber A after the powder taking is completed, and continuously kneading for 0.5-1.5h to obtain mixed rubber; s3: placing the mixed rubber on an upper wrapping roller of an open mill for uniform mixing, then adding an anti-aging agent and a vulcanization system, and obtaining a mixed rubber after the wrapping roller for uniform mixing; s4, molding and vulcanizing. The method for preparing the window glass sealing strip for inhibiting the wind vibration effect is reasonable in design, and the prepared window glass sealing strip with excellent ageing resistance and mechanical properties ensures that the window glass sealing strip can be effectively sealed for a long time, can be tightly attached to a window, reduces gaps through which air flows, and reduces wind vibration noise.
Description
Technical Field
The invention belongs to the field of sealing strips, and particularly relates to a preparation method of a vehicle window glass sealing strip for inhibiting wind vibration effect.
Background
As a complex mechanical convention, car noise comes from a number of aspects. Traditional automobile noise research is mostly focused on vibration noise problems of power systems, transmission systems and the like. With the development of urban expressways, the contribution of wind noise in a vehicle is increased by the improvement of vehicle speed. Particularly, the development of electric automobile technology makes the automobile wind noise problem more outstanding.
The automobile wind noise source mainly comprises leakage noise, appearance noise and wind vibration noise. In the running process of the automobile, three wind noise sources have obvious influence on the comfort of passengers in the automobile. In the running process of the automobile, wind vibration noise is generated, because the static air in the passenger cabin and the airflow outside the automobile have a speed gradient, an unstable shear layer exists at the opening of the side window, vortex shedding is caused, and when the generated unstable pressure pulsation frequency is close to the natural frequency of air compression expansion in the passenger cabin, helmholtz resonance is induced.
The performance of the sealing strip of the vehicle window glass is optimized, so that wind vibration noise in the running process of the vehicle is reduced, and the following aspects are embodied: (1) sealing Properties: the design of the sealing strip can ensure that an effective seal is formed between the vehicle window and the vehicle body, and noise generated by air flow is reduced; (2) vibration and noise reduction: the high-quality materials and the multi-layer structure design can provide a better damping effect, and effectively reduce vibration transmission, thereby reducing noise; (3) aging resistance: the sealing strip material for the vehicle window glass has good ageing resistance, can keep the functions for a long time and prolongs the service life.
Therefore, the invention aims to develop a preparation method of the sealing strip, and the prepared sealing strip can reduce wind vibration noise in the running process of an automobile when being applied to window glass.
Disclosure of Invention
The invention aims to: in order to overcome the defects, the invention aims to provide the preparation method of the window glass sealing strip for inhibiting the wind vibration effect, which is reasonable in design, and the window glass sealing strip with excellent ageing resistance and mechanical properties is prepared by optimizing the formula and the preparation method, so that the window glass sealing strip can be effectively sealed for a long time and can be tightly attached to a window, gaps through which air flows are reduced, wind vibration noise is reduced, and the application prospect is wide.
The invention aims at realizing the following technical scheme:
a preparation method of a vehicle window glass sealing strip for inhibiting wind vibration effect comprises the following steps:
s1: adding fluororubber into an open mill with the roll spacing adjusted to be below 1mm, and adding magnesium hydroxide for 3-5 times after rubber breaking is completed to obtain premixed rubber A;
s2: adding methyl vinyl silicone rubber into a preheated kneader, adding a reinforcing filling system and a structure control agent for 3-5 times after the rubber breaking is completed, adding the premixed rubber A after the powder taking is completed, and continuously kneading for 0.5-1.5h to obtain mixed rubber;
s3: placing the mixed rubber on an upper wrapping roller of an open mill for uniform mixing, then adding an anti-aging agent and a vulcanization system, adjusting the roller spacing to 1-3mm after uniform mixing of the wrapping roller, and discharging after 5-10 times of thin-pass triangular wrapping to obtain a mixed rubber;
s4, molding and vulcanizing: and (3) placing the rubber compound in a position of 20-24 and h, forming into a sealing strip blank through an injection molding process, and respectively carrying out primary vulcanization and secondary vulcanization by adopting a flat vulcanizing machine and an electrothermal blowing constant temperature oven to obtain the sealing strip for the vehicle window glass.
According to the preparation method of the vehicle window glass sealing strip, the preparation steps are reasonable in design, the methyl vinyl silicone rubber, the reinforcing filling system, the structure control agent, the fluororubber, the magnesium hydroxide, the anti-aging agent and the vulcanizing system are mixed through a mechanical blending method, and after molding and secondary vulcanization, the vehicle window glass sealing strip with excellent anti-aging and mechanical properties is obtained, so that the vehicle window glass sealing strip can be effectively sealed for a long time, can be closely attached to a vehicle window, and reduces gaps through which air flows, thereby reducing the possibility of wind vibration noise.
Further, in the above method for preparing a sealing strip for vehicle window glass for inhibiting wind vibration effect, in the step S1, the composite rubber comprises the following raw materials in parts by weight:
100-120 parts of methyl vinyl silicone rubber;
30-50 parts of a reinforcing filling system;
5-15 parts of a structure control agent;
30-50 parts of fluororubber;
1-5 parts of magnesium hydroxide;
1-3 parts of an anti-aging agent;
5-10 parts of a vulcanization system.
The formula design of the rubber compound is reasonable, methyl vinyl silicone rubber is used as a base rubber, a Si-O bond with a spiral structure is used as a main chain, a side chain contains vinyl groups, a molecular chain is flexible and easy to crosslink, the fluororubber has heat-resistant stability similar to that of the methyl vinyl silicone rubber, the radius of fluorine atoms on the side chain of the fluororubber is smaller and is closely distributed around the main chain, and the rubber compound has a stronger shielding effect.
The mechanical property of the sealing strip of the vehicle window glass can be further improved by adding the reinforcing filling system for reinforcement. By adding the structure control agent, the storage time of the rubber compound can be prolonged, and the processing performance can be improved.
Further, the preparation method of the vehicle window glass sealing strip for inhibiting the wind vibration effect comprises the following raw materials in parts by weight: 6-8 parts of gas-phase white carbon black, 2-3 parts of zinc monomethacrylate and 1-2 parts of carbon nano tube.
The reinforcing filling system is compounded by adopting gas-phase white carbon black, zinc monomethacrylate and carbon nano tubes, the reinforcing filling system is uniformly dispersed in a methyl vinyl silicone rubber matrix through kneading by a kneader, the gas-phase white carbon black has large specific surface area and is tightly combined with the matrix, the load can be dispersed in the stretching process, the stress concentration is reduced, an obvious reinforcing effect is achieved, the carbon nano tubes can uniformly disperse the heat absorbed by a material, the oxidation of methyl on the side of the silicone rubber and the reaction of silicon hydroxyl are inhibited, the mechanical property loss of the material is reduced, an anti-aging effect is achieved, and the zinc monomethacrylate is added to cooperate with the gas-phase white carbon black and the carbon nano tubes, so that ionic polymers which can be generated in the vulcanization process have better reinforcing effect on the rubber matrix, further strengthen the interaction between the reinforcing system and the rubber matrix, and have an anti-aging effect.
Further, in the method for preparing the vehicle window glass sealing strip for inhibiting the wind vibration effect, the structure control agent is hydroxyl silicone oil.
Further, the preparation method of the vehicle window glass sealing strip for inhibiting the wind vibration effect comprises the following raw materials in parts by weight: 1-2 parts of sulfur, 2-3 parts of N, N '-4,4' -diphenylmethane bismaleimide, 3-4 parts of zinc oxide, 0.5-1.5 parts of stearic acid and 0.5-1 part of accelerator.
The vulcanization system adopts sulfur, N, N '-4,4' -diphenylmethane bismaleimide, zinc oxide, an accelerator and stearic acid for compounding, the combination of the sulfur and the accelerator is the most widely used vulcanization system, zinc oxide and stearic acid are added into the vulcanization system to serve as vulcanization active agents, N, N '-4,4' -diphenylmethane bismaleimide are added into the vulcanization system, a cross-linking bond formed by the vulcanization system is a C-C covalent bond, and the bond energy of the vulcanization system is higher than that of a monosulfur or polysulfide bond formed by a common sulfur vulcanization system, and in addition, the molecular chain segment of the N, N '-4,4' -diphenylmethane bismaleimide contains a phenylene structure, so that the crosslinking density of the vulcanization system is better, and the ageing resistance, rigidity and hardness of the composite rubber are better improved.
Further, in the method for preparing the vehicle window sealing strip for inhibiting the wind vibration effect, the anti-aging agent is one or a combination of more of anti-aging agent 4010NA, anti-aging agent RD, anti-aging agent 445, anti-aging agent MB and anti-aging agent DNP.
The anti-aging agent can be selected according to actual requirements.
Further, in the above method for producing a sealing strip for a vehicle window glass for suppressing wind vibration effect, in S2, the temperature of the kneader is 150 to 160 ℃.
Further, in the method for preparing the sealing strip for vehicle window glass for inhibiting wind vibration effect, in S4, the parameter of the first-stage vulcanization is set as follows: the temperature is 150-170 ℃, the pressure is 10-20MPa, and the time is 5-15min; and setting parameters of the two-stage vulcanization: the temperature is 130-150 ℃, the pressure is 5-15MPa, and the time is 3-5h.
Compared with the prior art, the invention has the following beneficial effects: according to the preparation method of the vehicle window glass sealing strip for inhibiting the wind vibration effect, disclosed by the invention, methyl vinyl silicone rubber, a reinforcing filling system, a structure control agent, fluororubber, magnesium hydroxide, an anti-aging agent and a vulcanization system are mixed into the rubber compound by a mechanical blending method, the formula design of the rubber compound is reasonable, after molding and secondary vulcanization, the vehicle window glass sealing strip with excellent ageing resistance and mechanical properties can be obtained, the vehicle window glass sealing strip can be effectively sealed for a long time, the vehicle window can be tightly attached, gaps through which air flows are reduced, the wind vibration effect inhibiting effect is achieved, and the possibility of wind vibration noise is reduced.
Detailed Description
In the following, a clear and complete description of the technical solutions in the embodiments of the present invention will be given in conjunction with specific experimental data, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1 below provides a method of making a sealing strip for a vehicle glazing.
Example 1
The method for preparing the sealing strip of the vehicle window glass in the embodiment 1 comprises the following steps:
s1: adding fluororubber into an open mill with the roll spacing adjusted to be below 1mm, and adding magnesium hydroxide for 3-5 times after rubber breaking is completed to obtain premixed rubber A;
s2: adding methyl vinyl silicone rubber into a preheated kneader, wherein the temperature of the kneader is 155 ℃, adding a reinforcing filling system and a structure control agent for 3-5 times after the rubber breaking is completed, adding the premixed rubber A after the powder taking is completed, and continuously kneading for 1.5 hours to obtain mixed rubber;
s3: placing the mixed rubber on an upper wrapping roller of an open mill for uniform mixing, then adding an anti-aging agent and a vulcanization system, adjusting the roller spacing to 1-3mm after uniform mixing of the wrapping roller, and discharging after 5-10 times of thin-pass triangular wrapping to obtain a mixed rubber; wherein the rubber compound comprises the following raw materials in parts by weight:
100 parts of methyl vinyl silicone rubber (model 110-2/2S, available from Dongjue silicone (Nanjing) Co., ltd.);
35 parts of a reinforcing filling system (22 parts of gas-phase white carbon black, 8 parts of zinc monomethacrylate and 5 parts of carbon nano tubes);
12 parts of a structure control agent (hydroxy silicone oil);
34 parts of fluororubber (brand VITON A-401C, commercially available from DuPont company, U.S.A.);
3 parts of magnesium hydroxide;
1-3 parts of an anti-aging agent MB;
10 parts of a vulcanization system (2 parts of sulfur, 3 parts of N, N '-4,4' -diphenylmethane bismaleimide, 3 parts of zinc oxide, 1.5 parts of stearic acid and 0.5 part of accelerator).
S4, molding and vulcanizing: after the rubber compound is placed in a container 24 and h, forming into a sealing strip blank through an injection molding process, and respectively performing primary vulcanization and secondary vulcanization by adopting a flat vulcanizing machine and an electrothermal blowing constant temperature box, wherein parameters of the primary vulcanization are as follows: the temperature is 155 ℃, the pressure is 20MPa, and the time is 10min; and setting parameters of the two-stage vulcanization: the temperature is 135 ℃, the pressure is 15MPa, and the time is 3 hours, so that the sealing strip for the vehicle window glass is obtained.
And (3) effect verification:
the performance of the sealing strip for vehicle window glass obtained in example 1 was measured, and the test results are shown in table 1, and the test standards are as follows:
(1) Hardness: testing was performed as per GB/T531-2008.
(2) Mechanical properties: the test was carried out according to GB/T528-2009, and a 1-dumbbell-shaped test specimen was used as the test specimen, with a tensile rate of 500mm/min.
(3) Aging performance: ageing test is carried out in a DHG-9140A type oven manufactured by Shanghai Ji Xin scientific instruments, the temperature is 170 ℃, the ventilation rate is 20 times per hour, and the mechanical properties of the test sample after ageing for 72 hours are the same as the mechanical property test method.
TABLE 1 Performance test results
There are many ways in which the invention may be practiced, and what has been described above is merely a preferred embodiment of the invention. It should be noted that the above examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that modifications may be made without departing from the principles of the invention, and such modifications are intended to be within the scope of the invention.
Claims (8)
1. The preparation method of the vehicle window glass sealing strip for inhibiting the wind vibration effect is characterized by comprising the following steps of:
s1: adding fluororubber into an open mill with the roll spacing adjusted to be below 1mm, and adding magnesium hydroxide for 3-5 times after rubber breaking is completed to obtain premixed rubber A;
s2: adding methyl vinyl silicone rubber into a preheated kneader, adding a reinforcing filling system and a structure control agent for 3-5 times after the rubber breaking is completed, adding the premixed rubber A after the powder taking is completed, and continuously kneading for 0.5-1.5h to obtain mixed rubber;
s3: placing the mixed rubber on an upper wrapping roller of an open mill for uniform mixing, then adding an anti-aging agent and a vulcanization system, adjusting the roller spacing to 1-3mm after uniform mixing of the wrapping roller, and discharging after 5-10 times of thin-pass triangular wrapping to obtain a mixed rubber;
s4, molding and vulcanizing: and (3) placing the rubber compound in a position of 20-24 and h, forming into a sealing strip blank through an injection molding process, and respectively carrying out primary vulcanization and secondary vulcanization by adopting a flat vulcanizing machine and an electrothermal blowing constant temperature oven to obtain the sealing strip for the vehicle window glass.
2. The method for preparing a sealing strip for vehicle window glass for inhibiting wind vibration effect according to claim 1, wherein in S1, the composite rubber comprises the following raw materials in parts by weight:
100-120 parts of methyl vinyl silicone rubber;
30-50 parts of a reinforcing filling system;
5-15 parts of a structure control agent;
30-50 parts of fluororubber;
1-5 parts of magnesium hydroxide;
1-3 parts of an anti-aging agent;
5-10 parts of a vulcanization system.
3. The method for preparing the vehicle window glass sealing strip for inhibiting wind vibration effect according to claim 2, wherein the reinforcing filling system comprises the following raw materials in parts by weight: 6-8 parts of gas-phase white carbon black, 2-3 parts of zinc monomethacrylate and 1-2 parts of carbon nano tube.
4. The method for producing a weather strip for vehicle windows for inhibiting the wind vibration effect according to claim 2, wherein the structure controlling agent is a hydroxy silicone oil.
5. The method for preparing the sealing strip for the vehicle window glass for inhibiting the wind vibration effect according to claim 2, wherein the vulcanization system comprises the following raw materials in parts by weight: 1-2 parts of sulfur, 2-3 parts of N, N '-4,4' -diphenylmethane bismaleimide, 3-4 parts of zinc oxide, 0.5-1.5 parts of stearic acid and 0.5-1 part of accelerator.
6. The method for producing a weather strip for vehicle windows for suppressing the wind vibration effect according to claim 2, wherein the antioxidant is one or a combination of more of an antioxidant 4010NA, an antioxidant RD, an antioxidant 445, an antioxidant MB, and an antioxidant DNP.
7. The method for producing a weather strip for vehicle windows for suppressing wind vibration effect according to claim 1, wherein in S2, the temperature of the kneader is 150 to 160 ℃.
8. The method for producing a weather strip for vehicle windows for inhibiting the wind vibration effect according to claim 1, wherein in S4, the one-stage vulcanization parameter is set as follows: the temperature is 150-170 ℃, the pressure is 10-20MPa, and the time is 5-15min; and setting parameters of the two-stage vulcanization: the temperature is 130-150 ℃, the pressure is 5-15MPa, and the time is 3-5h.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111320823A (en) * | 2020-04-27 | 2020-06-23 | 太仓恩力成密封件有限公司 | Wear-resistant anti-aging automobile sealing strip and preparation method thereof |
| CN112646294A (en) * | 2020-12-18 | 2021-04-13 | 成都硅宝科技股份有限公司 | Fluororubber/silicone rubber blended rubber and preparation method thereof |
| CN113817323A (en) * | 2021-10-14 | 2021-12-21 | 江西蓝星星火有机硅有限公司 | Silicone rubber capable of bonding with fluororubber, and rubber composite layer comprising same |
| CN115160668A (en) * | 2022-09-01 | 2022-10-11 | 太仓恩力成密封件有限公司 | Anti-aging rubber sealing ring and preparation method and application thereof |
| CN116715925A (en) * | 2023-07-25 | 2023-09-08 | 国网智能电网研究院有限公司 | Rubber vibration isolator and preparation method and application thereof |
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| CN101412835A (en) * | 2008-11-28 | 2009-04-22 | 华南理工大学 | Blend of fluorubber and silastic, and preparation thereof |
| CN104312165A (en) * | 2014-09-30 | 2015-01-28 | 宁国瑞冠泰设备有限公司 | Special high-temperature-resistant oil seal for drying apparatuses and preparation method thereof |
| CN104710795A (en) * | 2015-01-28 | 2015-06-17 | 柳州市同进汽车零部件制造有限公司 | Ultrahigh temperature resistant O-shaped rubber sealing ring |
| CN105111521A (en) * | 2015-09-02 | 2015-12-02 | 徐州工业职业技术学院 | Colored hand cart tire rubber material filled with semi-wet modified attapulgite and preparation method of colored hand cart tire rubber material |
| CN108641254A (en) * | 2018-04-03 | 2018-10-12 | 金继善 | A kind of processing technology of vehicle wiper self-lubricating rubber weather strip |
| CN109337373A (en) * | 2018-09-27 | 2019-02-15 | 芜湖扬展新材料科技服务有限公司 | A kind of high temperature vulcanized melting silicone rubber and its production technology |
| CN111320823A (en) * | 2020-04-27 | 2020-06-23 | 太仓恩力成密封件有限公司 | Wear-resistant anti-aging automobile sealing strip and preparation method thereof |
| CN112646294A (en) * | 2020-12-18 | 2021-04-13 | 成都硅宝科技股份有限公司 | Fluororubber/silicone rubber blended rubber and preparation method thereof |
| CN113817323A (en) * | 2021-10-14 | 2021-12-21 | 江西蓝星星火有机硅有限公司 | Silicone rubber capable of bonding with fluororubber, and rubber composite layer comprising same |
| CN115160668A (en) * | 2022-09-01 | 2022-10-11 | 太仓恩力成密封件有限公司 | Anti-aging rubber sealing ring and preparation method and application thereof |
| CN116715925A (en) * | 2023-07-25 | 2023-09-08 | 国网智能电网研究院有限公司 | Rubber vibration isolator and preparation method and application thereof |
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