CN116464727A - Polyamide-containing elastomer and preparation method thereof - Google Patents
Polyamide-containing elastomer and preparation method thereof Download PDFInfo
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- CN116464727A CN116464727A CN202310442464.7A CN202310442464A CN116464727A CN 116464727 A CN116464727 A CN 116464727A CN 202310442464 A CN202310442464 A CN 202310442464A CN 116464727 A CN116464727 A CN 116464727A
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- polyamide
- buffer
- support
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- 239000004952 Polyamide Substances 0.000 title claims abstract description 73
- 229920002647 polyamide Polymers 0.000 title claims abstract description 73
- 229920001971 elastomer Polymers 0.000 title claims abstract description 61
- 239000000806 elastomer Substances 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 127
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 238000005507 spraying Methods 0.000 claims description 20
- 229920003235 aromatic polyamide Polymers 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910001429 cobalt ion Inorganic materials 0.000 claims description 6
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 229920002635 polyurethane Polymers 0.000 claims description 6
- 239000004814 polyurethane Substances 0.000 claims description 6
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 5
- 229910001431 copper ion Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000009189 diving Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- -1 silver ions Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a polyamide-containing elastomer and a preparation method thereof, wherein the polyamide-containing elastomer comprises a buffer piece, a supporting piece and a bone piece group; the buffer piece is fixed on the support piece; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece extends into the supporting piece from the contact surface of the supporting piece and the buffer piece, or penetrates through the buffer piece from the surface of the buffer piece and extends into the supporting piece; the bone piece is a metal ion bone piece; the included angle between the bone piece and the plane of the supporting piece is 60-80 degrees; the main component of the support is polyamide; the elastomer is used as the protection of underwater equipment or diving equipment, achieves the purposes of resisting water flow impact, improving buffering and prolonging the service life of equipment.
Description
Technical Field
The invention relates to an elastomer containing polyamide and a preparation method thereof, belonging to the technical field of functional material preparation.
Background
With the development of technology, people are not limited to onshore exploration, and more exploration is performed underwater. The world under water is too huge, has a lot of unknown and mystery feelings, and has a huge development space in the scientific and technical level for completely exploring everything under water. Underwater exploration includes equipment, equipment and tremendous differentiation from underwater and land environments where special protection under underwater conditions, such as currents, wave impact, temperature, light, oxygen, marine life, etc., is considered when equipment needs to be installed under water, or when a person is launched. Particularly, the water flow and the sea wave can bring larger impact to the underwater equipment, thereby influencing the operation and the service life of the equipment, and therefore, the technology of protecting, buffering and shock absorption of the equipment under water is worthy of further improvement.
Disclosure of Invention
In order to overcome the defects of the prior art, a first object of the invention is to provide an elastomer containing polyamide, which is used as the protection of underwater equipment or diving equipment, achieves the purposes of resisting water flow impact, improving buffering and prolonging the service life of the equipment.
The second object of the present invention is to provide a process for preparing the polyamide-containing elastomer described above, which can be stably and repeatedly carried out under processing parameters, and is advantageous for industrial production.
The first object of the invention can be achieved by adopting the following technical scheme: a polyamide-containing elastomer comprising a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece extends into the supporting piece from the contact surface of the supporting piece and the buffer piece, or penetrates through the buffer piece from the surface of the buffer piece and extends into the supporting piece; the bone piece is a metal ion bone piece; the included angle between the bone piece and the plane of the supporting piece is 60-80 degrees; the main component of the support is polyamide.
Further, the thickness of the buffer member is 0.2-0.7cm; the thickness of the support is 0.3-0.8cm.
Further, the bone pieces are at least two groups; every two bone parts are axisymmetric.
Further, the metal ion is at least one of cobalt ion, silver ion and copper ion.
Further, the main component of the buffer piece is at least one of polyvinyl chloride, polyester polyurethane and polyaramid; the main component of the support is polyamide PA66.
Further, the polyaramid buffer is 50% glass fiber reinforced polyaramid.
The second object of the invention can be achieved by adopting the following technical scheme: a process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support, and cooling to 70-110 ℃;
the bone component set constructing step: the metal ions are injected into the supporting piece in a pressurizing way or in a linear way under the condition that the temperature is 85-120 ℃, the included angle between the pressurizing injection direction or the linear injection direction and the plane of the supporting piece is 60-80 degrees, a plurality of bone pieces with sequentially increasing lengths are formed, and the bone pieces extend into the supporting piece from the contact surface of the supporting piece and the buffer piece;
and forming a buffer part: and forming a buffer member on the surface of the support member injected into the bone member to obtain the polyamide-containing elastomer.
Or, a process for producing an elastomer containing polyamide, comprising:
and a support piece forming step: injection molding a polyamide raw material into a support;
and forming a buffer part: forming a buffer part on the support part, and cooling to 85-135 ℃;
the bone component set constructing step: the metal ions are injected from the surface of the buffer piece in a pressurizing way or in a linear way under the condition that the temperature is 85-120 ℃, and the included angle between the pressurizing injection direction or the linear injection direction and the plane of the support piece is 60-80 degrees; and forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces penetrate through the buffer piece from the surface of the buffer piece and extend into the support piece to obtain the polyamide-containing elastomer.
Further, the injection pressure of the linear injection is 0.4-1.2Mpa.
Further, the straight-line spraying is to arrange spraying nozzles with the same number as the bone pieces, and the spraying nozzles are arranged in parallel; the included angle between the spray nozzle and the plane to be sprayed is 60-80 degrees; the injection pressure and the injection quantity of each injection nozzle are the same.
Compared with the prior art, the invention has the beneficial effects that:
1. the polyamide-containing elastomer provided by the invention takes metal ions as bone pieces, so that the bottom supporting force of the supporting pieces is enhanced, and the stability of the elastomer is improved under underwater pressure;
2. the lengths of the bone pieces in the polyamide-containing elastomer are different, so that the elastomer is beneficial to bending when being used for wrapping an article with radian, and the elastic body is attached to the surface with radian; the support piece is used as an inner layer to contact with the surface of the object, has small elastic modulus and flexible use, can directly cover a plane, and can also be folded for wrapping;
3. the elastomer bone piece group containing polyamide can be penetrated from the buffer piece to the support piece, so that the whole elastomer bone piece group is stronger in integrity, high in fit degree of the buffer piece and the support piece, not easy to crack and delaminate, and stronger in integral impact resistance;
4. the elastic bone piece group containing polyamide can be also arranged in the supporting piece, the buffer piece is used as an outer layer during bending, the extensibility is better, the bending radian is larger, the supporting piece is used as an inner layer, the bending radian is smaller, the bending amplitude difference between the two layers is reduced, the involvement between the two layers is reduced, the cracking risk is reduced, and the durability is higher;
5. the polyamide-containing elastomer can be recycled and secondarily molded, and the secondarily prepared elastomer is extruded after being melted, so that metal ions can be uniformly distributed and used for preparing the elastomer composition with conductivity;
6. according to the polyamide-containing elastomer, according to the use requirements, elastomers with different structures can be obtained through two preparation methods, the injection or injection temperature of metal ions is regulated, bone pieces are formed in the support piece which is not completely cooled, the bone pieces are finally injected into the support piece, the support piece is not broken down, and the integrity is higher.
Drawings
FIGS. 1-2 are schematic structural diagrams of polyamide-containing elastomers;
FIG. 3 is a bending use state diagram of the polyamide-containing elastomer;
in the figure, 1, a buffer part, 2, a supporting part, 3 and a bone part group; 31. bone pieces.
Detailed Description
The invention will be further described with reference to the accompanying drawings and detailed description below:
as shown in fig. 1 and 2, a polyamide-containing elastomer includes a cushion member 1, a support member 2, and a bone member group 3; the buffer member 1 is fixed on the support member 2; the thickness of the buffer piece 1 is 0.2-0.7cm; the thickness of the support 2 is 0.3-0.8cm; the bone piece group 3 comprises a plurality of bone pieces 31 with sequentially increasing lengths; the bone piece group 3 is at least two groups; every two bone piece groups 3 are axisymmetric; bone members 31 extend into support member 2 from the interface of support member 2 and cushioning member 1 (as shown in fig. 1), or extend through cushioning member 1 from the surface of cushioning member 1 and into support member 2 (as shown in fig. 2); the bone piece 31 is a metal ion bone piece 31; the metal ion is at least one of cobalt ion, silver ion and copper ion; the included angle between the bone piece 31 and the plane of the supporting piece 2 is 60-80 degrees; the main component of the buffer piece 1 is at least one of polyvinyl chloride, polyester polyurethane and 50% glass fiber reinforced polyaramid; the main component of the support 2 is polyamide PA66.
In considering the anti-collision and cushioning properties of an elastomer for use under water, it is first of all necessary to realize the difference between the pressure under water and the atmospheric pressure environment on land, for example, at a water depth of 20-50m, the water pressure is 0.3-0.6mPa. The elastomer still has good cushioning elasticity in an environment against water pressure. The bone piece can strengthen the bottom supporting force of the supporting piece, improves the stability of the elastic body under the underwater pressure, and the elastic body can be covered on a plane by the arrangement mode, and can be folded and coated (shown in figure 3), so that the use is flexible.
The buffer member is prepared from at least one of polyvinyl chloride, polyester polyurethane and 50% glass fiber reinforced polyaramid; the support is made of polyamide PA66, and when the support is used, the buffer is used as an outer layer to be in direct contact with water, and the support is used as an inner layer to be attached to the surface of the equipment. The buffer layer density is high, and the water absorption is low, and tensile extensibility is higher than support piece, has good cladding to support piece just under the thickness, suitable tensile stress for the two-layer laminating degree is difficult to fracture, if set up from the buffer piece wear to support piece's bone piece group, the bone piece group also is favorable to the fixed and laminating of buffer piece and support piece.
The temperature also affects the performance of the elastomer, for example, the temperature is about 3-20 ℃ under the water depth of 20-50m, the temperature also affects the stretching of the support piece and the buffer piece, the support piece and the buffer piece use different materials, and the bone piece of metal ions can play a role in transferring the temperature, so that the internal temperature difference of the support piece and the buffer piece is reduced.
A process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support, and cooling to 70-110 ℃;
the bone component set constructing step: the metal ions are injected into the support under pressure or are sprayed in a straight line at the temperature of 85-120 ℃, and the included angle between the direction of the injection under pressure or the straight line and the plane of the support is 60-80 degrees; forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces extend into the support piece from the contact surface of the support piece and the buffer piece;
and forming a buffer part: and forming a buffer member on the surface of the support member injected into the bone member to obtain the polyamide-containing elastomer.
When the bone piece group is formed on the supporting piece, as the bone piece group does not penetrate through the supporting piece, negative pressure is formed at the injection point of the bone piece on the surface to enable the buffer piece material to permeate into the supporting piece, so that the attaching surface area and the bonding stability of the supporting piece and the buffer piece are improved.
Or, a process for producing an elastomer containing polyamide, comprising:
and a support piece forming step: injection molding a polyamide raw material into a support;
and forming a buffer part: forming a buffer part on the support part, and cooling to 85-135 ℃;
the bone component set constructing step: the metal ions are injected from the surface of the buffer piece in a pressurizing way or in a linear way under the condition that the temperature is 85-120 ℃, and the included angle between the pressurizing injection direction or the linear injection direction and the plane of the support piece is 60-80 degrees; and forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces penetrate through the buffer piece from the surface of the buffer piece and extend into the support piece to obtain the polyamide-containing elastomer.
The linear injection is higher than the injection efficiency, the linear injection can be provided with injection nozzles with the same number as the bone pieces, and the injection nozzles are arranged in parallel; the included angle between the spray nozzle and the plane to be sprayed is 60-80 degrees; the injection pressure and the injection quantity of each injection nozzle are the same, and the injection pressure of the linear injection is 0.4-1.2Mpa; when the spraying nozzles are not parallel to the plane to be sprayed, the metal ions emitted by each spraying nozzle are different from the plane to be sprayed, so that the impact force is different, and even if the spraying pressure and the spraying quantity are the same, a group of bone pieces with different lengths can be formed; the metal ions are affected by the negative charges of the support and buffer, and can be more uniformly distributed. The bone pieces with different lengths can enable the support piece to keep good flexibility when being bent, particularly the bottom of the support piece contacts the surface of the equipment when wrapping the equipment, and the bending degree of the support piece is highest.
The metal ion selects at least one of cobalt ion, silver ion and copper ion, and has penetrability when forming bone parts under the temperature parameter, and can play roles of temperature conduction and support.
Example 1:
a polyamide-containing elastomer comprising a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the thickness of the buffer piece is 0.6cm; the thickness of the support piece is 0.6cm; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece group is at least two groups; every two bone parts are axisymmetric; the bone piece extends into the support piece from the contact surface of the support piece and the buffer piece; the bone piece is a metal ion bone piece; the metal ions are cobalt ions and silver ions; the included angle between the bone piece and the plane of the supporting piece is 65 degrees; the main component of the buffer piece is 50% glass fiber reinforced polyaramid; the main component of the support is polyamide PA66.
A process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support, and cooling to 78 ℃;
the bone component set constructing step: the metal ions are linearly sprayed into the support piece under the condition that the temperature is 110 ℃, the spraying pressure is 1.1Mpa, and the included angle between the linear spraying direction and the plane of the support piece is 65 degrees; forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces extend into the support piece from the contact surface of the support piece and the buffer piece;
and forming a buffer part: and forming a buffer member on the surface of the support member injected into the bone member to obtain the polyamide-containing elastomer.
Example 2:
a polyamide-containing elastomer comprising a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the thickness of the buffer piece is 0.4cm; the thickness of the support piece is 0.6cm; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece group is at least two groups; every two bone parts are axisymmetric; the bone piece extends into the support piece from the contact surface of the support piece and the buffer piece; the bone piece is a metal ion bone piece; the metal ions are cobalt ions; the included angle between the bone piece and the plane of the supporting piece is 75 degrees; the main component of the buffer piece is 50% glass fiber reinforced polyaramid; the main component of the support is polyamide PA66.
A process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support, and cooling to 85 ℃;
the bone component set constructing step: the metal ions are linearly sprayed into the support piece under the condition that the temperature is 105 ℃, the spraying pressure is 1Mpa, and the included angle between the linear spraying direction and the plane of the support piece is 75 degrees; forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces extend into the support piece from the contact surface of the support piece and the buffer piece;
and forming a buffer part: and forming a buffer member on the surface of the support member injected into the bone member to obtain the polyamide-containing elastomer.
Example 3:
a polyamide-containing elastomer comprising a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the thickness of the buffer piece is 0.5cm; the thickness of the support piece is 0.7cm; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece group is at least two groups; every two bone parts are axisymmetric; the bone piece penetrates through the buffer piece from the surface of the buffer piece and extends into the support piece; the bone piece is a metal ion bone piece; the metal ions are silver ions; the included angle between the bone piece and the plane of the supporting piece is 70 degrees; the main component of the buffer piece is polyester polyurethane; the main component of the support is polyamide PA66.
A process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support;
and forming a buffer part: forming a buffer piece on the support piece, and cooling to 90 ℃;
the bone component set constructing step: the metal ions are sprayed from the surface of the buffer piece in a straight line under the condition of the temperature of 105 ℃, and the spraying pressure is 0.95Mpa; the included angle between the straight-line spraying direction and the plane of the supporting piece is 70 degrees; and forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces penetrate through the buffer piece from the surface of the buffer piece and extend into the support piece to obtain the polyamide-containing elastomer.
Example 4:
a polyamide-containing elastomer comprising a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the thickness of the buffer piece is 0.7cm; the thickness of the support piece is 0.4cm; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece group is at least two groups; every two bone parts are axisymmetric; the bone piece penetrates through the buffer piece from the surface of the buffer piece and extends into the support piece; the bone piece is a metal ion bone piece; the metal ions are copper ions; the included angle between the bone piece and the plane of the supporting piece is 75 degrees; the main components of the buffer piece are polyvinyl chloride and polyester polyurethane; the main component of the support is polyamide PA66.
A process for preparing a polyamide-containing elastomer comprising:
and a support piece forming step: injection molding a polyamide raw material into a support;
and forming a buffer part: forming a buffer piece on the support piece, and cooling to 110 ℃;
the bone component set constructing step: the metal ions are sprayed from the surface of the buffer piece in a straight line under the condition that the temperature is 115 ℃, and the spraying pressure is 1.05Mpa; the included angle between the straight-line spraying direction and the plane of the supporting piece is 75 degrees; and forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces penetrate through the buffer piece from the surface of the buffer piece and extend into the support piece to obtain the polyamide-containing elastomer.
Comparative example 1:
the elastomer was molded from a polyamide raw material and had a thickness of 1.2cm.
Comparative example 2:
the upper layer is made of polyaramid with the thickness of 0.6cm, the lower layer is made of polyamide PA66 with the thickness of 0.6cm, and the two layers are molded to obtain the elastomer.
Examples 1 to 4 and comparative examples 1 to 2 were examined, and the results are shown in Table 1, in which the pressure under water was simulated to be 0.4mPa and the temperature was examined at 12℃under the condition of immersing in seawater:
table 1 results of the tests of examples and comparative examples
Various other corresponding changes and modifications will occur to those skilled in the art from the foregoing description and the accompanying drawings, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (10)
1. A polyamide-containing elastomer, characterized in that the polyamide-containing elastomer comprises a cushioning member, a support member, and a bone member set; the buffer piece is fixed on the support piece; the bone piece group comprises a plurality of bone pieces with sequentially increasing lengths; the bone piece extends into the supporting piece from the contact surface of the supporting piece and the buffer piece, or penetrates through the buffer piece from the surface of the buffer piece and extends into the supporting piece; the bone piece is a metal ion bone piece; the included angle between the bone piece and the plane of the supporting piece is 60-80 degrees; the main component of the support is polyamide.
2. The polyamide-containing elastomer of claim 1, wherein the cushioning member has a thickness of 0.2 to 0.7cm; the thickness of the support piece is 0.3-0.8cm.
3. The polyamide-containing elastomer of claim 1, wherein the bone members are at least two groups; every two bone piece groups are axisymmetric.
4. The polyamide-containing elastomer of claim 1, wherein the metal ion is at least one of cobalt ion, silver ion, and copper ion.
5. The polyamide-containing elastomer as claimed in claim 1, wherein the main component of the cushion member is at least one of polyvinyl chloride, polyester polyurethane and polyaramid; the main component of the support is polyamide PA66.
6. The polyamide-containing elastomer of claim 5 wherein the polyaramid buffer component is a 50% glass fiber reinforced polyaramid.
7. A process for the preparation of a polyamide-containing elastomer, comprising:
and a support piece forming step: injection molding a polyamide raw material into a support, and cooling to 70-110 ℃;
the bone component set constructing step: the metal ions are injected into the supporting piece in a pressurizing way or in a linear way under the condition that the temperature is 85-120 ℃, the included angle between the pressurizing injection direction or the linear injection direction and the plane of the supporting piece is 60-80 degrees, a plurality of bone pieces with sequentially increasing lengths are formed, and the bone pieces extend into the supporting piece from the contact surface of the supporting piece and the buffer piece;
and forming a buffer part: and forming a buffer member on the surface of the support member injected into the bone member to obtain the polyamide-containing elastomer.
8. A process for the preparation of a polyamide-containing elastomer, comprising:
and a support piece forming step: injection molding a polyamide raw material into a support;
and forming a buffer part: forming a buffer part on the support part, and cooling to 85-135 ℃;
the bone component set constructing step: pressurizing and injecting or linearly spraying metal ions from the surface of the buffer piece at the temperature of 85-120 ℃, wherein an included angle between the pressurizing and injecting or linearly spraying direction and the plane of the support piece is 60-80 degrees; and forming a plurality of bone pieces with sequentially increasing lengths, wherein the bone pieces penetrate through the buffer piece from the surface of the buffer piece and extend into the support piece to obtain the polyamide-containing elastomer.
9. The process for producing a polyamide-containing elastomer as claimed in claim 7 or 8, wherein the linear jet has a jet pressure of 0.4 to 1.2Mpa.
10. The method for producing a polyamide-containing elastomer as claimed in claim 7 or 8, wherein the straight-line spraying is provided with the same number of spraying nozzles as the bone pieces, and the spraying nozzles are arranged in parallel; the included angle between the spray nozzle and the plane to be sprayed is 60-80 degrees; the injection pressure and the injection quantity of each injection nozzle are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310442464.7A CN116464727A (en) | 2023-04-21 | 2023-04-21 | Polyamide-containing elastomer and preparation method thereof |
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| CN202310442464.7A CN116464727A (en) | 2023-04-21 | 2023-04-21 | Polyamide-containing elastomer and preparation method thereof |
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| CN116464727A true CN116464727A (en) | 2023-07-21 |
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| CN202310442464.7A Pending CN116464727A (en) | 2023-04-21 | 2023-04-21 | Polyamide-containing elastomer and preparation method thereof |
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|---|---|
| CN (1) | CN116464727A (en) |
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