CN111748141A - Sliding plate for seismic isolation and reduction support and preparation method - Google Patents
Sliding plate for seismic isolation and reduction support and preparation method Download PDFInfo
- Publication number
- CN111748141A CN111748141A CN202010792002.4A CN202010792002A CN111748141A CN 111748141 A CN111748141 A CN 111748141A CN 202010792002 A CN202010792002 A CN 202010792002A CN 111748141 A CN111748141 A CN 111748141A
- Authority
- CN
- China
- Prior art keywords
- sliding plate
- parts
- materials
- molecular weight
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- 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
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
- C08K9/00—Use of pretreated ingredients
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to the technical field of sliding plates and preparation methods, and discloses a sliding plate for a seismic isolation bearing and a preparation method. The main technical characteristics are as follows: the skateboard comprises a skateboard body, wherein the skateboard body comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 10-60 parts of polytetrafluoroethylene fibers; 0.5-5 parts of a lubricant; 0.5-5 parts of carbon fiber; 0.5-4 parts of calcium sulfate whisker; 0.1-2 parts of a coupling agent; 0.1-2 parts of a compatilizer. The sliding plate takes the ultra-high molecular weight polyethylene as a main body, the polytetrafluoroethylene exists in the sliding plate in a fibrous manner, the polytetrafluoroethylene fibers are cut off and fall off through the friction force between the support and the sliding plate, the fallen polytetrafluoroethylene fibers and the lubricant form a lubricating film on the surface of the sliding plate under the action of pressure and are attached to the surface of the ultra-high molecular weight polyethylene to play a role in reducing abrasion and consumption, the activated carbon has strong adsorption performance, can adsorb partial lubricant and play a role in slow release, and the service life of the bridge is prolonged.
Description
Technical Field
The invention belongs to the technical field of sliding plates and preparation methods, and particularly relates to a sliding plate for a seismic isolation bearing and a preparation method.
Background
With the increasing demand of bridge supports, the environmental and technical problems faced by bridge construction are more and more increased, and the design requirements are higher and higher, so that the traditional sliding plate for bridge supports can not meet the design requirements of novel supports more and more, namely the friction coefficient is between 0.03 and 0.05 under the condition of no silicone grease lubrication. At present, there are mainly the following materials for the skateboard: firstly, a polytetrafluoroethylene sliding plate is characterized by good self-lubricating property, low friction coefficient and poor compression resistance, but under the condition of no silicone grease lubrication, the polytetrafluoroethylene sliding plate has large abrasion loss and can not meet the design requirements of shock absorption and isolation supports; secondly, the filled modified polytetrafluoroethylene sliding plate has good compressive strength and wear resistance, excellent wear resistance under the condition of silicone grease lubrication, a friction coefficient lower than 0.02 and incapable of playing a good damping effect, and under the condition of no silicone grease lubrication, the friction coefficient is larger than 0.06, creep wear is large and the design requirement of the friction pendulum type shock absorption and isolation support cannot be met; thirdly, the modified ultra-high molecular weight polyethylene sliding plate has high compressive strength, excellent wear resistance under the condition of silicone grease, and a friction coefficient less than 0.015, and can not play a good damping effect; however, under the condition of no silicone grease lubrication, the heat conduction performance is poor, the friction coefficient is high, a large amount of heat generated in the friction process is not conducted, the surface temperature of the sliding plate rapidly rises, the sliding plate is seriously deformed, and the use is influenced. The sliding plate filled with the modified ultra-high molecular weight polyethylene by the powdery polytetrafluoroethylene in the market has high friction coefficient, the ultra-high molecular weight polyethylene is melted into a colloid in the friction process and wrapped outside the polytetrafluoroethylene, so that the friction force can not be reduced, and the design requirement of the friction pendulum type seismic mitigation and isolation support can not be met.
Disclosure of Invention
The invention aims to solve the first technical problem of providing a sliding plate for a seismic isolation and reduction support, which has low friction coefficient, low abrasion, long-term abrasion resistance and good creep resistance under the condition of no silicone grease lubrication and mixing.
In order to solve the problems, the sliding plate for the seismic isolation and reduction support adopts the technical scheme that: the skateboard comprises a skateboard body, wherein the skateboard body comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 10-60 parts of polytetrafluoroethylene fibers; 0.5-5 parts of a lubricant; 0.5-4 parts of calcium sulfate whisker; 0.1-2 parts of a coupling agent; 0.1-2 parts of a compatilizer.
The additional technical characteristics are as follows:
the skateboard body also comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 20-23 parts of polytetrafluoroethylene fibers; 2.5-3 parts of a lubricant; 2.5-3 parts of calcium sulfate whiskers; 1.1-1.2 parts of a coupling agent; 1.1-1.2 parts of a compatilizer;
the skateboard body also comprises the following materials in parts by weight: 0.02-2 parts of a coloring agent; 0.5-5 parts of graphene; 0.2-3 parts of activated carbon;
a base plate is arranged below the sliding plate body and comprises the following materials in parts by weight:
100 parts of ultrahigh molecular weight polyethylene; 0.5-5 parts of graphene; 0.5-5 parts of carbon fiber; 0.1-2 parts of a coupling agent;
the thickness of the sliding plate body is less than or equal to 3mm, the thickness of the substrate is greater than or equal to 4mm, and the sum of the thicknesses of the sliding plate body and the substrate is greater than or equal to 7 mm;
the molecular weight of the ultra-high molecular weight polyethylene is between 300 and 1200 ten thousand, and the length of the polytetrafluoroethylene fiber is between 0.1 and 5 mm;
the specific surface area of the activated carbon is as follows: 500-2000m2The length-diameter ratio of the calcium sulfate whisker is 10-200.
The second technical problem to be solved by the invention is to provide a method for preparing the sliding plate for the seismic isolation and reduction support.
In order to solve the problems, the method for preparing the sliding plate for the seismic isolation and reduction support adopts the technical scheme that: the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
As a further first improvement of the method, the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated colorant, the activated carbon, the graphene and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
The sliding plate for the seismic isolation bearing is provided with the base plate below the sliding plate body. The method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
proportioning of the substrate: weighing the raw materials according to the weight ratio of the raw materials for later use;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh, mixing the substrates
Adding the materials of the substrate prepared in the second step into a high-speed stirrer, stirring for 2-10min, and taking out for later use;
eighth step, compression molding
Mixing the sliding plate body material obtained by the sixth step and the base plate material obtained by the seventh step according to the weight ratio of 1:15-1:1.5, weighing, distributing materials in sequence, and then carrying out compression molding, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
ninth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
Compared with the existing support sliding plate, the sliding plate for the seismic isolation and reduction support provided by the invention has the following advantages:
the method comprises the steps of firstly, preparing a sliding plate body from 100 parts by weight of ultrahigh molecular weight polyethylene, 10-60 parts by weight of polytetrafluoroethylene fibers, 0.5-5 parts by weight of a lubricant, 0.5-4 parts by weight of calcium sulfate whiskers, 0.1-2 parts by weight of a coupling agent, 0.1-2 parts by weight of a compatilizer, preparing the coupling agent into a dilute solution with the concentration of 0.5-1%, pretreating the coupling agent of the calcium sulfate whiskers, preparing the sliding plate body from raw materials according to the weight ratio, dividing the ultrahigh molecular weight polyethylene powder into two parts, placing one part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whiskers and the lubricant into a stirrer, stirring at a high speed for 2-10min to obtain a mixed material ①, placing the other part of the ultrahigh molecular weight polyethylene powder, the polytetrafluoroethylene fibers and the compatilizer into a high-speed stirrer, stirring for 2-10min to obtain a mixed material ②, placing the mixed material ① and the mixed material ② into the high-speed stirrer, stirring for 2-10min to obtain a mixed material ③, fully mixing the mixed material with an airflow mixer, controlling the pressure of the mixed material in a sixth step, and controlling the pressure of the mixed material, and the pressure of the mixed material ① -210 MPa, and the pressureCooling to below 60 deg.C in 20-120min, demolding, and shaping; the polytetrafluoroethylene is fibrous, in the initial state, the polytetrafluoroethylene fiber is partially exposed on the surface, in the abrasion process, the polytetrafluoroethylene fiber is cut off and falls off through the friction force between the support and the sliding plate, the fallen polytetrafluoroethylene fiber and the lubricant form a lubricating film on the surface of the sliding plate under the pressure action and are attached to the surface of the ultrahigh molecular weight polyethylene, the later fallen polytetrafluoroethylene is gradually supplemented along with the loss of the fallen polytetrafluoroethylene to form dynamic balance, the friction force is reduced, and the phenomenon that the ultrahigh molecular weight polyethylene is melted into a gel at high temperature to influence the performance of the support due to large friction force is avoided; the polytetrafluoroethylene is fibrous, even if the temperature is high, the denatured ultrahigh molecular weight polyethylene can not completely wrap the polytetrafluoroethylene fibers, the polytetrafluoroethylene fibers positioned outside play a role in lubrication, the friction force between the support and the sliding plate can be reduced, and the temperature generated by the friction of the contact part between the support and the sliding plate is reduced; the defect of low temperature resistance of the ultra-high molecular weight polyethylene sliding plate is overcome; the sliding plate body has a lower friction coefficient, so that the problem that the existing sliding plate depends on silicone grease is solved, the maintenance cost of the support in the using process is reduced, calcium sulfate whiskers are added into the sliding plate body, the hardness, the wear resistance and the heat resistance of the sliding plate body of the friction swinging type shock absorption and isolation support are improved, and the creep resistance of the sliding plate is improved; secondly, the skateboard body also comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 20-23 parts of polytetrafluoroethylene fibers; 2.5-3 parts of a lubricant; 2.5-3 parts of calcium sulfate whiskers; 1.1-1.2 parts of a coupling agent; 1.1-1.2 parts of a compatilizer; the lubricating effect is better; thirdly, the skateboard body also comprises the following materials in parts by weight: 0.02-2 parts of a coloring agent; 0.5-5 parts of graphene; 0.2-3 parts of activated carbon; the added graphene improves the thermal conductivity, so that the heat generated by friction on the surface of the sliding plate is easy to conduct out, and the low temperature resistance of the ultra-high molecular weight polyethylene is also improved; fourthly, as the base plate is arranged below the sliding plate body and comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 0.5-5 parts of graphene; 0.5-5 parts of carbon fiber; 0.1-2 parts of a coupling agent; skateboard body mainThe base plate mainly plays a role in supporting and conducting heat and energy, so that the overall tensile strength and creep resistance of the sliding plate are improved; fifthly, the specific surface area of the activated carbon is as follows: 500-2000m2The length-diameter ratio of the calcium sulfate whisker is 10-200, the specific surface area is increased, the contact area of various raw materials is enhanced, the interaction is more obvious, and the activated carbon has strong adsorption performance, can adsorb part of the lubricant and has the function of slow release.
Drawings
FIG. 1 is a schematic structural view of a sliding plate for seismic mitigation and isolation bearing with a base plate according to the present invention;
FIG. 2 is a schematic structural diagram of a sliding plate for seismic mitigation and isolation bearing with another structure.
Detailed Description
The structure and the using principle of the sliding plate for the seismic isolation and reduction support of the invention are further explained in detail with reference to the accompanying drawings and the specific embodiments.
The sliding plate for the seismic isolation and reduction support comprises a sliding plate body, wherein the sliding plate body comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 10-60 parts of polytetrafluoroethylene fibers; 0.5-5 parts of a lubricant; 0.5-4 parts of calcium sulfate whisker; 0.1-2 parts of a coupling agent; 0.1-2 parts of compatilizer, and coupling agent is prepared into dilute solution with the concentration of 0.5% -1%; pretreating a coupling agent of the calcium sulfate whisker; the batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts; putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I; putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II; putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III; fully mixing the mixed materials III through an airflow mixer; performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min; cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping; the polytetrafluoroethylene is fibrous, in the initial state, the polytetrafluoroethylene fiber is partially exposed on the surface, in the abrasion process, the polytetrafluoroethylene fiber is cut off and falls off through the friction force between the support and the sliding plate, the fallen polytetrafluoroethylene fiber and the lubricant form a lubricating film on the surface of the sliding plate under the pressure action and are attached to the surface of the ultrahigh molecular weight polyethylene, the later fallen polytetrafluoroethylene is gradually supplemented along with the loss of the fallen polytetrafluoroethylene to form dynamic balance, the friction force is reduced, and the phenomenon that the ultrahigh molecular weight polyethylene is melted into a gel at high temperature to influence the performance of the support due to large friction force is avoided; the polytetrafluoroethylene is fibrous, even if the temperature is high, the melted ultrahigh molecular weight polyethylene can not completely wrap the polytetrafluoroethylene fibers, the polytetrafluoroethylene fibers positioned outside play a role in lubrication, the friction force between the support and the sliding plate can be reduced, and the temperature of the contact part between the support and the sliding plate is reduced; the sliding plate body has a lower friction coefficient, so that the problem that the existing sliding plate depends on silicone grease is solved, and the maintenance cost of the support in the using process is reduced. The calcium sulfate crystal whisker is added into the sliding plate body, so that the hardness, the wear resistance and the heat resistance of a working layer of the sliding plate of the friction pendulum type shock absorption and isolation support are improved, and the creep property of the sliding plate is improved; the active carbon has the advantages that the specific surface area is increased, the contact area among various materials is increased, the interaction is more obvious, the active carbon has strong adsorption performance, can adsorb partial lubricant and has the function of slow release.
As a further improvement, the skateboard body comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 20-23 parts of polytetrafluoroethylene fibers; 2.5-3 parts of a lubricant; 2.5-3 parts of calcium sulfate whiskers; 1.1-1.2 parts of a coupling agent; 1.1-1.2 parts of a compatilizer; the lubricating effect is better.
As a further improvement, the skateboard body also comprises the following materials in parts by weight: 0.02-2 parts of a coloring agent; 0.5-5 parts of graphene; 0.2-3 parts of activated carbon; the graphene added improves the heat conductivity, so that the heat generated by friction on the surface of the sliding plate is easily conducted out, and the heat resistance of the sliding plate is also improved.
As shown in fig. 1 and 2, a base plate 2 is arranged below the skateboard body 1, and the base plate 2 comprises the following materials in parts by weight: 100 parts of ultrahigh molecular weight polyethylene; 0.5-5 parts of graphene; 0.5-5 parts of carbon fiber; 0.1-2 parts of a coupling agent; the sliding plate body mainly plays a role in reducing abrasion and consumption, the base plate mainly plays a role in supporting and conducting heat and energy, and the whole tensile strength and creep resistance of the sliding plate are improved by adopting a layered structure.
As shown in figure 2, a groove 3 is arranged above the base plate 2, a convex block 4 with the same shape as the groove 3 is arranged at the position below the sliding plate body 1 corresponding to the groove 3, the convex block 4 is inserted into the groove 3, the sliding plate body 1 and the base plate 2 are combined more firmly, and the service life of the sliding plate is further prolonged.
The thickness of the sliding plate body 1 is less than or equal to 3mm, the thickness of the base plate 2 is greater than or equal to 4mm, and the sum of the thicknesses of the sliding plate body 1 and the base plate 2 is greater than or equal to 7mm, so that the overall tensile strength and creep resistance of the sliding plate are improved.
The molecular weight of the ultra-high molecular weight polyethylene is between 300 and 1200 ten thousand, and the service life of the whole sliding plate is longer.
The length of the polytetrafluoroethylene fiber is 0.1-5mm, so that the uniform mixing is ensured, and the lubricating effect is improved.
The specific surface area of the activated carbon is as follows: 500-2000m2The length-diameter ratio of the calcium sulfate whisker is 10-200, the specific surface area is increased, the contact area of various raw materials is enhanced, the interaction is more obvious, and the activated carbon has strong adsorption performance, can adsorb part of the lubricant and has the function of slow release.
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
As a further first improvement of the method, the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated colorant, the activated carbon, the graphene and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
The sliding plate for the seismic isolation bearing is provided with the base plate below the sliding plate body. The method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
proportioning of the substrate: weighing the raw materials according to the weight ratio of the raw materials for later use;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating the carbon fiber by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated coloring agent, the activated carbon and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh, mixing the substrates
Adding the materials of the substrate prepared in the second step and the treated carbon fibers into a high-speed stirrer, stirring for 2-10min, and taking out for later use;
eighth step, compression molding
Mixing the sliding plate body material obtained by the sixth step and the base plate material obtained by the seventh step according to the weight ratio of 1:15-1:1.5, weighing, distributing materials in sequence, and then carrying out compression molding, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
ninth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
Example 1
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; polytetrafluoroethylene fibers 10; 0.5 kg of lubricant; 0.5 kg of calcium sulfate whiskers; 0.1 kg of coupling agent; 0.1 kg of compatilizer, wherein the ultrahigh molecular weight polyethylene powder is divided into two parts on average;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Carrying out compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled at 210 ℃, the molding pressure is controlled at 3MPa, and the compression molding time is 30min
Eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 5MPa and the time is controlled to be 20min, demolding and shaping.
Example 2
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 60 g of polytetrafluoroethylene fiber; 5 kg of lubricant; 4 kg of calcium sulfate whiskers; 2 kg of coupling agent; 2 kg of compatilizer, wherein the ultra-high molecular weight polyethylene powder is divided into two parts with the same quantity;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Carrying out compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled at 260 ℃, the molding pressure is controlled at 10MPa, and the compression molding time is 150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 15MPa for 120min, demolding and shaping.
Example 3
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 20 kg of polytetrafluoroethylene fibers; 2.5 kg of lubricant; 2.5 kg of calcium sulfate whiskers; 1.1 kg of coupling agent; 1.1 kg of compatilizer, wherein the ultrahigh molecular weight polyethylene powder is divided into two parts on average;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 8min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring for 7min at a high speed to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 7min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Carrying out compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled at 240 ℃, the molding pressure is controlled at 6MPa, and the compression molding time is 90 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 10MPa and the time is controlled to be 40min, demolding and shaping.
Example 4
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 20 kg of polytetrafluoroethylene fibers; 2.5 kg of lubricant; 2.5 kg of calcium sulfate whiskers; 1.1 kg of coupling agent; 1.1 kg of compatilizer and 0.02 kg of colorant; 0.5 kg of graphene; 0.2 kg of activated carbon; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts on average;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated coloring agent, the graphene, the activated carbon and the lubricant into a stirrer, and stirring at a high speed for 8min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 6min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 7min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Carrying out compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled at 230 ℃, the molding pressure is controlled at 8MPa, and the compression molding time is 90 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 10MPa and the time is controlled to be 60min, demolding and shaping.
Example 5
The method for preparing the sliding plate for the seismic isolation and reduction support comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 23 kg of polytetrafluoroethylene fibers; 3 kg of lubricant; 3 kg of calcium sulfate whiskers; 1.2 kg of coupling agent; 1.2 kg of compatilizer and 2 kg of colorant; 5 kg of graphene; 3 kg of active carbon; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts on average;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated colorant, the activated carbon, the graphene and the lubricant into a stirrer, and stirring at a high speed for 6min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 8min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 6min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Carrying out compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled at 240 ℃, the molding pressure is controlled at 8MPa, and the compression molding time is 90 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 10MPa and the time is controlled to be 60min, demolding and shaping.
Example 6
The sliding plate for the seismic isolation bearing is provided with the base plate below the sliding plate body. The method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 40 kg of polytetrafluoroethylene fibers; 5 kg of lubricant; 4 kg of calcium sulfate whiskers; 2 kg of coupling agent; 2 kg of compatilizer, wherein the ultra-high molecular weight polyethylene powder is divided into two parts with the same quantity;
proportioning of the substrate: weighing 100 kg of ultra-high molecular weight polyethylene; 0.5 kg of graphene; 0.5 kg of carbon fibers; 0.1 kg of coupling agent;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating the carbon fiber by using a coupling agent;
processing graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 7min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring for 4min at a high speed to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 4min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh, mixing the substrates
Adding the materials of the substrate prepared in the second step into a high-speed stirrer, stirring for 2min, and taking out for later use;
eighth step, compression molding
Weighing the mixed sliding plate body material in the sixth step and the mixed base plate material in the seventh step according to the weight ratio of 1:15-1:1.5, distributing the materials in sequence, and then carrying out compression molding, wherein the molding temperature is controlled at 210 ℃, the molding pressure is controlled at 3MPa, and the molding time is 30 min;
ninth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 10MPa and the time is controlled to be 100min, demolding and shaping.
Example 7
The sliding plate for the seismic isolation bearing is provided with the base plate below the sliding plate body. The method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing 100 kg of ultra-high molecular weight polyethylene; 40 kg of polytetrafluoroethylene fibers; 5 kg of lubricant; 4 kg of calcium sulfate whiskers; 2 kg of coupling agent; 2 kg of compatilizer, wherein the ultra-high molecular weight polyethylene powder is divided into two parts with the same quantity;
proportioning of the substrate: weighing 100 kg of ultra-high molecular weight polyethylene; 5 kg of graphene; 5 kg of carbon fibers; 2 kg of coupling agent;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating the carbon fiber by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 7min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring for 4min at a high speed to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 6min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh, mixing the substrates
Adding the materials of the substrate prepared in the second step into a high-speed stirrer, stirring for 2min, and taking out for later use;
eighth step, compression molding
Weighing the mixed sliding plate body material in the sixth step and the mixed base plate material in the seventh step according to the weight ratio of 1:15-1:1.5, distributing the materials in sequence, and then carrying out compression molding, wherein the molding temperature is controlled at 210 ℃, the molding pressure is controlled at 3MPa, and the molding time is 30 min;
ninth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the condition that the pressure is 10MPa and the time is controlled to be 100min, demolding and shaping.
The sliding plate for the seismic isolation and reduction support and the preparation method thereof are not limited to the embodiments, and the sliding plate for the seismic isolation and reduction support and the preparation method thereof are within the protection scope of the invention as long as the formula is the same as or similar to that of the sliding plate for the seismic isolation and reduction support and the preparation method is the same as or similar to that of the preparation method.
Claims (10)
1. Subtract slide for isolation bearing, its characterized in that: the skateboard comprises a skateboard body, wherein the skateboard body comprises the following materials in parts by weight:
10-60 parts of polytetrafluoroethylene fiber by 100 parts of ultrahigh molecular weight polyethylene
0.5-5 parts of lubricant, 0.5-4 parts of calcium sulfate whisker
0.1-2 parts of coupling agent and 0.1-2 parts of compatilizer.
2. The sliding plate for seismic isolation bearing according to claim 1, wherein: the skateboard body also comprises the following materials in parts by weight:
100 parts of ultra-high molecular weight polyethylene and 20-23 parts of polytetrafluoroethylene fiber
2.5-3 parts of lubricant, 2.5-3 parts of calcium sulfate whisker
1.1-1.2 parts of coupling agent and 1.1-1.2 parts of compatilizer.
3. The sliding plate for seismic isolation bearing according to claim 1, wherein: the skateboard body also comprises the following materials in parts by weight:
0.02-2 parts of colorant and 0.5-5 parts of graphene
0.2-3 parts of activated carbon.
4. The sliding plate for seismic isolation bearing according to claim 1, wherein: a base plate is arranged below the sliding plate body and comprises the following materials in parts by weight:
100 parts of ultra-high molecular weight polyethylene and 0.5-5 parts of graphene
0.5-5 parts of carbon fiber and 0.1-2 parts of coupling agent.
5. The sliding plate for seismic isolation bearing according to claim 4, wherein: the thickness of the sliding plate body is less than or equal to 3mm, the thickness of the substrate is greater than or equal to 4mm, and the sum of the thicknesses of the sliding plate body and the substrate is greater than or equal to 7 mm.
6. The sliding plate for seismic isolation bearing according to claim 1, wherein: the molecular weight of the ultra-high molecular weight polyethylene is between 300 and 1200 ten thousand; the length of the polytetrafluoroethylene fiber is 0.1-5 mm.
7. The sliding plate for seismic isolation bearing according to claim 3, wherein: the specific surface area of the activated carbon is as follows: 500-2000m2The length-diameter ratio of the calcium sulfate whisker is 10-200.
8. The preparation method of the sliding plate for the seismic isolation and reduction support of claim 1, 2, 6 or 7 is characterized by comprising the following steps: the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
9. The method for preparing the sliding plate for the seismic isolation bearing according to claim 3, wherein the method comprises the following steps: the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
pretreating a colorant by using a coupling agent;
pretreating graphene by using a coupling agent;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of ultra-high molecular weight polyethylene powder, the treated calcium sulfate whisker, the treated colorant, the activated carbon, the graphene and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh step, compression molding
Performing compression molding on the mixed sliding plate body material obtained in the sixth step, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
eighth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
10. The method for preparing the sliding plate for the seismic isolation bearing according to claim 4 or 5 is characterized in that: the method comprises the following steps:
first, preparing the ingredients
The batching of slide body: weighing the raw materials according to the weight ratio of the raw materials for later use; wherein, the ultra-high molecular weight polyethylene powder is divided into two parts;
proportioning of the substrate: weighing the raw materials according to the weight ratio of the raw materials for later use;
second, pretreatment
Preparing a coupling agent into a dilute solution with the concentration of 0.5-1%;
pretreating a coupling agent of the calcium sulfate whisker;
thirdly, mixing the materials for the first time by the sliding plate body
Putting a part of the ultrahigh molecular weight polyethylene powder, the treated calcium sulfate whisker and the lubricant into a stirrer, and stirring at a high speed for 2-10min to obtain a mixed material I;
fourthly, mixing the materials of the sliding plate body for the second time
Putting the other part of the ultra-high molecular weight polyethylene powder, the polytetrafluoroethylene fiber and the compatilizer into a high-speed stirrer, and stirring at a high speed for 2-10min to obtain a mixed material II;
fifthly, mixing the materials for the third time by the slide plate body
Putting the mixed material I and the mixed material II into a high-speed stirrer, stirring for 2-10min, and taking out to obtain a mixed material III;
sixthly, mixing the materials for the fourth time by the sliding plate body
Fully mixing the mixed materials III through an airflow mixer;
seventh, mixing the substrates
Adding the materials of the substrate prepared in the second step into a high-speed stirrer, stirring for 2-10min, and taking out for later use;
eighth step, compression molding
Mixing the sliding plate body material obtained by the sixth step and the base plate material obtained by the seventh step according to the weight ratio of 1:15-1:1.5, weighing, distributing materials in sequence, and then carrying out compression molding, wherein the molding temperature is controlled to be 210-260 ℃, the molding pressure is controlled to be 3-10MPa, and the compression molding time is 30-150 min;
ninth, cooling and demolding
And (3) cooling the plate subjected to compression molding to below 60 ℃ under the pressure of 5-15MPa for 20-120min, demolding and shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792002.4A CN111748141A (en) | 2020-08-08 | 2020-08-08 | Sliding plate for seismic isolation and reduction support and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792002.4A CN111748141A (en) | 2020-08-08 | 2020-08-08 | Sliding plate for seismic isolation and reduction support and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111748141A true CN111748141A (en) | 2020-10-09 |
Family
ID=72713141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010792002.4A Pending CN111748141A (en) | 2020-08-08 | 2020-08-08 | Sliding plate for seismic isolation and reduction support and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111748141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182240A (en) * | 2022-09-13 | 2022-10-14 | 中裕铁信交通科技股份有限公司 | Friction type high-damping rubber shock absorption support and preparation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1884362A (en) * | 2006-05-30 | 2006-12-27 | 嘉兴中达自润轴承工业有限公司 | Bridge bearing gliding material and method for preparing the same |
| WO2007116257A2 (en) * | 2006-04-12 | 2007-10-18 | Politecnico Di Milano | Structural engineering sliding elements having high wear-proof and low coefficient of friction |
| CN101328705A (en) * | 2008-07-25 | 2008-12-24 | 深州市工程塑料有限公司 | Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board |
| CN101948583A (en) * | 2010-10-25 | 2011-01-19 | 株洲时代工程塑料制品有限责任公司 | Crosslinked polyethylene composite material and preparation method thereof |
| CN105666980A (en) * | 2016-02-01 | 2016-06-15 | 西申（上海）新材料科技有限公司 | Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge |
| CN205443919U (en) * | 2016-02-01 | 2016-08-10 | 西申（上海）新材料科技有限公司 | Iron road bridge roof beam is compound slide of sintering for spherical bearing |
| CN106592420A (en) * | 2016-11-29 | 2017-04-26 | 洛阳双瑞特种装备有限公司 | Complex framework structure sliding plate for bridge support |
| CN106638284A (en) * | 2016-11-29 | 2017-05-10 | 洛阳双瑞特种装备有限公司 | Bridge support with novel friction pair |
| CN108504050A (en) * | 2018-02-11 | 2018-09-07 | 洛阳双瑞特种装备有限公司 | A kind of preparation method and friction pair of bridge pad composite slide-plate |
| CN110835887A (en) * | 2019-10-22 | 2020-02-25 | 洛阳双瑞特种装备有限公司 | Bridge beam supports is with antifriction slide of lasting lubrication |
| CN111303520A (en) * | 2020-03-23 | 2020-06-19 | 中国科学院兰州化学物理研究所 | Polymer sliding material for bridge support and preparation method thereof |
| CN211080581U (en) * | 2019-10-25 | 2020-07-24 | 衡水震泰隔震器材有限公司 | Sliding plate support |
| CN111471267A (en) * | 2020-05-21 | 2020-07-31 | 深州市工程塑料有限公司 | Sliding plate for friction pendulum type seismic mitigation and isolation support and preparation method |
-
2020
- 2020-08-08 CN CN202010792002.4A patent/CN111748141A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007116257A2 (en) * | 2006-04-12 | 2007-10-18 | Politecnico Di Milano | Structural engineering sliding elements having high wear-proof and low coefficient of friction |
| CN1884362A (en) * | 2006-05-30 | 2006-12-27 | 嘉兴中达自润轴承工业有限公司 | Bridge bearing gliding material and method for preparing the same |
| CN101328705A (en) * | 2008-07-25 | 2008-12-24 | 深州市工程塑料有限公司 | Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board |
| CN101948583A (en) * | 2010-10-25 | 2011-01-19 | 株洲时代工程塑料制品有限责任公司 | Crosslinked polyethylene composite material and preparation method thereof |
| CN105666980A (en) * | 2016-02-01 | 2016-06-15 | 西申（上海）新材料科技有限公司 | Modified UHMWPE (ultra-high molecular weight polyethylene) isobaric sintering method for spherical bearing of railway bridge and structure of spherical bearing of railway bridge |
| CN205443919U (en) * | 2016-02-01 | 2016-08-10 | 西申（上海）新材料科技有限公司 | Iron road bridge roof beam is compound slide of sintering for spherical bearing |
| CN106592420A (en) * | 2016-11-29 | 2017-04-26 | 洛阳双瑞特种装备有限公司 | Complex framework structure sliding plate for bridge support |
| CN106638284A (en) * | 2016-11-29 | 2017-05-10 | 洛阳双瑞特种装备有限公司 | Bridge support with novel friction pair |
| CN108504050A (en) * | 2018-02-11 | 2018-09-07 | 洛阳双瑞特种装备有限公司 | A kind of preparation method and friction pair of bridge pad composite slide-plate |
| CN110835887A (en) * | 2019-10-22 | 2020-02-25 | 洛阳双瑞特种装备有限公司 | Bridge beam supports is with antifriction slide of lasting lubrication |
| CN211080581U (en) * | 2019-10-25 | 2020-07-24 | 衡水震泰隔震器材有限公司 | Sliding plate support |
| CN111303520A (en) * | 2020-03-23 | 2020-06-19 | 中国科学院兰州化学物理研究所 | Polymer sliding material for bridge support and preparation method thereof |
| CN111471267A (en) * | 2020-05-21 | 2020-07-31 | 深州市工程塑料有限公司 | Sliding plate for friction pendulum type seismic mitigation and isolation support and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182240A (en) * | 2022-09-13 | 2022-10-14 | 中裕铁信交通科技股份有限公司 | Friction type high-damping rubber shock absorption support and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100463940C (en) | Bridge bearing gliding material and method for preparing the same | |
| CN102181089B (en) | Basalt fiber filled ultrahigh molecular weight polyethylene composite material and preparation method thereof | |
| CN101077912B (en) | Asbestos-free non-metal friction material and preparation method thereof | |
| CN101813150B (en) | Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof | |
| CN102199330B (en) | Method for preparing modified Teflon composite material and its product | |
| CN103059807B (en) | Friction material composition for high-performance brake pad | |
| CN103059504A (en) | Reinforced wear-resistant automobile brake composite material and preparation method thereof | |
| CN102757607A (en) | Fluorine-containing sealing wadding and preparation method thereof | |
| CN101492906B (en) | Composite intermediate layer sliding plate with filled polytetrafluoroethylene and method for preparing the same | |
| CN111748141A (en) | Sliding plate for seismic isolation and reduction support and preparation method | |
| CN101696311A (en) | Bearing retainer material and preparation method thereof | |
| CN101328705A (en) | Slide board for railway passenger dedicated line bridge support, modified ultra-high molecular weight polyethylene and production method for producing the slide board | |
| CN101260208B (en) | Anti-erosion material used for water turbine overflowing component | |
| CN202047362U (en) | Bridge bearer | |
| CN110079036A (en) | A kind of wear-resisting PTFE/Cu composite material and preparation method of pressure resistance | |
| CN1280387C (en) | Communication optical cable and electric cable filled factis | |
| CN102229493B (en) | Resin-free full ceramic based automobile brake pad and preparation method thereof | |
| CN115975346A (en) | Epoxy resin premix for OOA cured prepreg and preparation method thereof | |
| CN1049382C (en) | Creep-resistant composite material for valve base and producing process thereof | |
| CN106592420B (en) | A kind of compound skeleton structure slide plate of bridge pad | |
| CN101092680A (en) | Carbon based friction plates of powder metallurgy, and manufacturing technique | |
| CN212770532U (en) | Slide plate for seismic isolation and reduction support | |
| CN112592550A (en) | Fluororubber material for oil seal and preparation method thereof | |
| CN108504050B (en) | Preparation method of composite sliding plate for bridge support and friction pair | |
| CN107163498A (en) | A kind of rare earth-iron-boron modified natural fibers and its application on automobile brake material is prepared |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |