CN110591328A - Spunlace-induced response rubber composite material and preparation method thereof - Google Patents

Spunlace-induced response rubber composite material and preparation method thereof Download PDF

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Publication number
CN110591328A
CN110591328A CN201910790596.2A CN201910790596A CN110591328A CN 110591328 A CN110591328 A CN 110591328A CN 201910790596 A CN201910790596 A CN 201910790596A CN 110591328 A CN110591328 A CN 110591328A
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rubber composite
composite material
rubber
polyethylene oxide
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CN110591328B (en
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夏琳
邱桂学
刘广永
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Qingdao University of Science and Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/12—Shape memory
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/02—Applications for biomedical use
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses a spunlace response rubber composite material and a preparation method thereof. The invention comprises the following raw materials in parts by weight: 30-80 parts of nitrile rubber, 20-70 parts of polyethylene oxide, 0.8-1.6 parts of vulcanizing agent and 0-5 parts of processing aid; the invention also provides a preparation method of the rubber composite material, and the rubber composite material is obtained by mixing and vulcanizing the raw materials. The rubber composite material with the spunlace response is prepared by compounding the traditional rubber high polymer material with the functional high polymer material and mixing and vulcanizing, is a novel rubber composite material with the stimulus response, improves the utilization value of the shape memory high polymer material, has uniform texture, has a cross-linked network structure, does not have the problems of delamination and the like, has a conversion temperature interval between room temperature and body temperature, has better shape memory fixation and shape recovery performance, and is widely applied to the fields of biological medical treatment and the like.

Description

Spunlace-induced response rubber composite material and preparation method thereof
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a spunlace response rubber composite material and a preparation method thereof.
Background
The shape memory polymer material is a polymer material which can restore the initial shape of a product with the initial shape by the stimulation of external conditions (such as heat, electricity, light, chemical induction and the like) after the initial condition of the product is changed and fixed under certain conditions. The shape memory polymer material has large deformation, easy endowment, light weight and structural diversity; and the composite material has excellent insulating property, heat preservation property and easy coloring property, so that the composite material is widely concerned in the fields of biological medical treatment, intelligent textile, high-performance sensors and the like. The shape memory polymer material has great application prospect in the fields of clinical medicine and implanted medical equipment. With the rapid development of the fields of biomedical science, self-repairing materials, high-performance sensors and the like, people put forward higher requirements on shape memory polymer materials, such as requirements on biocompatibility, safety, easy processability, environmental protection, response range and the like, and the requirements all put forward new challenges on the shape memory polymer materials.
At the beginning of research, people mainly study and apply the shape memory behavior of the high polymer material by using the thermal response shape memory. However, shape memory materials have a temperature limit to withstand heat in the field of biomedical and the like. Therefore, the development of more stimulus response modes becomes one of the research hotspots in the field. With the progress of research, researchers begin to deeply research the stimulation mode of the shape memory behavior of the polymer material on the basis of the work of predecessors, and hopefully, the shape memory polymer material which is not limited to thermal stimulation response can be prepared, the utilization value of the shape memory polymer material is improved, the application field of the shape memory polymer material is expanded, and the market potential of the shape memory polymer material is further stimulated.
Disclosure of Invention
The invention aims to provide a spunlace stress response rubber composite material and a preparation method thereof, and aims to solve the problem of human body tolerance temperature limitation of shape memory materials in the fields of biological medicine and the like and develop a water stress response composite material.
In order to solve the technical problems, the invention is mainly realized by the following technical scheme:
in one aspect, the spunlace responsive rubber composite material comprises the following raw materials in parts by weight: 30-80 parts of nitrile rubber, 20-70 parts of polyethylene oxide, 0.8-1.6 parts of vulcanizing agent and 0-5 parts of processing aid.
The invention prepares the macromolecule based shape memory rubber composite material with the water jet shock response by taking the traditional rubber and plastic macromolecule material-nitrile-butadiene rubber (NBR) as a matrix material and compounding the traditional rubber and plastic macromolecule material-polyethylene oxide (PEO) with the composite function as a supplement. The traditional rubber-plastic high polymer material nitrile rubber (NBR) has the characteristics of high elasticity and cross-linked network of rubber materials, and has a polar functional group which has polarity; the functional polymer material polyethylene oxide (PEO) has water absorption capacity, the traditional rubber polymer material is compounded with the functional polymer material to prepare the shape memory polymer composite material responding under the water condition, the utilization value of the shape memory polymer material is improved, the rubber composite material has uniform texture, a cross-linked network structure and the like, the problems of delamination and the like do not exist, the conversion temperature range is always between room temperature and body temperature, the shape memory fixing and shape recovery performance is better, and the rubber composite material is widely applied to the fields of biological medical treatment and the like.
As a preferred embodiment, the feed comprises the following raw materials in parts by weight: 50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.6 parts of vulcanizing agent and 0-5 parts of processing aid. The rubber composite material contains a functional polymer component with water absorption, under the condition of water jet, the functional polymer component can absorb water to increase the distance between molecular chains, the shape of the rubber composite material can be changed under the action of external force, and the shape is fixed after freeze drying; immersing in water again, and enabling the shape of the material to be recovered due to sufficient restoring force provided by the cross-linked network structure existing in the material; the traditional rubber-plastic high polymer material nitrile-butadiene rubber (NBR) and the functional high polymer material polyethylene oxide (PEO) are compounded through a vulcanizing agent to form a cross-linked network structure, so that better shape memory fixation and shape recovery performance can be realized.
As a preferred embodiment, the feed comprises the following raw materials in parts by weight: 50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.5 parts of vulcanizing agent and 2-3 parts of processing aid. The nitrile rubber of the invention can be selected at will, has wide source, low price, convenient acquisition, good performance and easy vulcanization and crosslinking.
As a preferred embodiment, the polyethylene oxide has a molecular weight of 80 ten thousand and a PDI of 1.1 to 1.4. The polyethylene oxide has good water absorption performance, is cheap and easy to obtain, reduces the cost of the rubber composite material, and has good service performance.
As a preferred embodiment, the vulcanizing agent is any one of dicumyl peroxide, sulfur, dibenzoyl peroxide and di-tert-butyl peroxide. The present invention preferably uses a peroxide curing agent that can crosslink the NBR and PEO phases of the composite well, thereby creating a common crosslinked network for better shape memory retention and shape recovery.
As a preferred embodiment, the processing aid comprises any one or more of a surfactant, a coupling agent, an antioxidant, an accelerator and an activator. The invention can also add some processing aids, which is beneficial to improving the comprehensive performance of the rubber composite material and further improving the performance of the rubber composite material.
In another aspect, a method of preparing a hydroentanglement-responsive rubber composite of the present invention comprises the steps of: mixing process, in a double-roller open mill, adjusting the roller temperature to 60-80 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent and a processing aid, and performing thin pass for 3-5 times from left to right; adjusting the roller spacing to 1-3mm, and discharging; standing for 18-24h, refining, and thinly passing for 3-5 times; adjusting the roller spacing to 1-3mm, and discharging; and (3) a vulcanization process, wherein the vulcanization temperature is 150-.
The preparation method of the spunlace shock response rubber composite material takes the traditional rubber-plastic high polymer material, namely nitrile-butadiene rubber (NBR), as a base material, and compounds the functional high polymer material, namely polyethylene oxide (PEO), and the preparation method is obtained by mixing and vulcanizing.
As a preferred embodiment, the vulcanization process is carried out in a high temperature press. The existing high-temperature flat vulcanizing machine is adopted to carry out vulcanization treatment on the rubber material after mixing, the equipment is common, the operation is convenient, the additional investment cannot be increased, and the production cost is reduced.
As a preferred embodiment, in the mixing process, the roll-coating time is 4-10 min. Whether the complete roll wrapping uniformity of the nitrile rubber and the polyethylene oxide is realized or not can be intuitively controlled through the roll wrapping time, the control is convenient, the operation is convenient, and the production simplification is improved.
As a preferred embodiment, the temperature of the remilling in the mixing process is 60-80 ℃. After the nitrile rubber and the polyethylene oxide are mixed for the first time, the mixture returns to the open mill again for remixing, so that the mixing uniformity between the nitrile rubber and the polyethylene oxide is further improved, and the processing performance of the nitrile rubber and the polyethylene oxide is improved.
Compared with the prior art, the invention has the beneficial effects that: the invention takes the traditional rubber-plastic high polymer material-nitrile-butadiene rubber (NBR) as a base material, compounds the functional high polymer material with water absorption-polyethylene oxide (PEO), the two materials supplement each other, under the action of a vulcanizing agent, a cross-linked network structure is formed, and the high polymer-based shape memory rubber composite material with spunlace shock response is prepared; under the condition of water stimulation, the functional polymer component of the rubber composite material can absorb water, so that the distance between molecular chains is increased, the shape of the rubber composite material can be changed under the action of external force, and the shape of the rubber composite material can be fixed by freeze drying; the rubber composite material is immersed in water again, and due to the fact that the cross-linked network exists in the material to provide sufficient restoring force, the shape of the material is restored, better shape memory fixing and shape restoring performance can be achieved, the utilization value of the shape memory polymer material is improved, the rubber composite material is uniform in texture, tight in interlayer combination, free of the problems of delamination and the like, has better shape memory fixing and shape restoring performance, and is widely applied to the fields of biological medicine and the like. The method has the advantages of short process flow, simple operation, no special requirements on equipment, high production efficiency and low cost.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention relates to a spunlace response rubber composite material which comprises the following raw materials in parts by weight: 30-80 parts of nitrile rubber, 20-70 parts of polyethylene oxide, 0.8-1.6 parts of vulcanizing agent and 0-5 parts of processing aid.
Preferably, the feed comprises the following raw materials in parts by weight: 50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.6 parts of vulcanizing agent and 0-5 parts of processing aid.
Further, the feed comprises the following raw materials in parts by weight: 50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.5 parts of vulcanizing agent and 2-3 parts of processing aid.
Specifically, the polyethylene oxide has a molecular weight of 80 ten thousand and a PDI of 1.1 to 1.4.
Again preferably, the vulcanizing agent is any one of dicumyl peroxide, sulfur, dibenzoyl peroxide and di-tert-butyl peroxide.
Still further, the processing aid comprises any one or more of a surfactant, a coupling agent, an antioxidant, an accelerator and an activator.
The preparation method of the spunlace response rubber composite material comprises the following steps:
mixing process, in a double-roller open mill, adjusting the roller temperature to 60-80 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent and a processing aid, and performing thin pass for 3-5 times from left to right; adjusting the roller spacing to 1-3mm, and discharging; standing for 18-24h, refining, and thinly passing for 3-5 times; adjusting the roller spacing to 1-3mm, and discharging;
and (3) a vulcanization process, wherein the vulcanization temperature is 150-.
Specifically, the vulcanization process is carried out in a high-temperature press vulcanizer.
Further, in the mixing process, the roll wrapping time is 4-10 min.
Preferably, the temperature of the remixing in the mixing process is 60-80 ℃.
Example one
The preparation method of the spunlace response rubber composite material comprises the following steps:
1) weighing the following raw materials in parts by weight: 30 parts of nitrile rubber, 70 parts of polyethylene oxide, 0.8 part of vulcanizing agent DCP and 1 part of processing aid, wherein the processing aid comprises 0.3 part of zinc oxide, 0.2 part of anti-aging agent MB and 0.5 part of stearic acid;
2) mixing process, in a double-roller open mill, adjusting the roller temperature to 60 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent and a processing aid, and performing thin pass for 3 times from left to right; adjusting the roller spacing to 1mm, and discharging the sheet; standing for 18h, refining again, and thinly passing for 5 times; adjusting the roller spacing to 1mm, and discharging the sheet;
3) and (3) a vulcanization process, namely vulcanizing at the vulcanization temperature of 150 ℃ for 10min in a high-temperature flat plate vulcanizing machine to obtain the rubber composite material.
Example two
The preparation method of the spunlace response rubber composite material comprises the following steps:
1) weighing the following raw materials in parts by weight: 60 parts of nitrile rubber, 40 parts of polyethylene oxide and 1.6 parts of vulcanizing agent DCP;
2) mixing process, in a double-roller open mill, adjusting the roller temperature to 80 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent, and performing thin pass for 5 times from left to right; adjusting the roller spacing to 3mm, and discharging the sheet; standing for 24h, refining again, and thinly passing for 3 times; adjusting the roller spacing to 3mm, and discharging the sheet;
3) and (3) a vulcanization process, namely vulcanizing at the temperature of 160 ℃ for 5min in a high-temperature flat plate vulcanizing machine to obtain the rubber composite material.
EXAMPLE III
The preparation method of the spunlace response rubber composite material comprises the following steps:
1) weighing the following raw materials in parts by weight: 50 parts of nitrile rubber, 50 parts of polyethylene oxide and 1.0 part of vulcanizing agent DCP;
2) mixing process, in a double-roller open mill, adjusting the roller temperature to 75 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent, and performing thin pass for 4 times from left to right; adjusting the roller spacing to 2mm, and discharging the sheet; standing for 20h, refining again, and thinly passing for 4 times; adjusting the roller spacing to 2mm, and discharging the sheet;
3) and (3) a vulcanization process, namely vulcanizing at the vulcanization temperature of 155 ℃ for 8min in a high-temperature flat plate vulcanizing machine to obtain the rubber composite material.
Example four
The preparation method of the spunlace response rubber composite material comprises the following steps:
1) weighing the following raw materials in parts by weight: 40 parts of nitrile rubber, 60 parts of polyethylene oxide and 1.4 parts of vulcanizing agent DCP, wherein the molecular weight of the polyethylene oxide is 80 ten thousand, and the PDI is 1.3;
2) mixing process, in a double-roller open mill, adjusting the roller temperature to 75 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent, and performing thin pass for 3 times from left to right; adjusting the roller spacing to 2mm, and discharging the sheet; standing for 22h, refining again, and thinly passing for 5 times; adjusting the roller spacing to 2mm, and discharging the sheet;
3) and (3) a vulcanization process, namely vulcanizing at the temperature of 160 ℃ for 8min in a high-temperature flat plate vulcanizing machine to obtain the rubber composite material.
EXAMPLE five
The preparation method of the spunlace response rubber composite material comprises the following steps:
1) weighing the following raw materials in parts by weight: 80 parts of nitrile rubber, 20 parts of polyethylene oxide, 1.0 part of sulfur as a vulcanizing agent and 5 parts of processing aid, wherein the processing aid comprises 1 part of accelerator CZ, 1 part of accelerator DM, 2 parts of zinc oxide, 3 parts of anti-aging agent MB and 3 parts of stearic acid;
2) mixing process, in a double-roller open mill, adjusting the roller temperature to 75 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent and a processing aid, and performing thin pass for 3 times from left to right; adjusting the roller spacing to 2mm, and discharging the sheet; standing for 22h, refining again, and thinly passing for 5 times; adjusting the roller spacing to 2mm, and discharging the sheet;
3) and (3) a vulcanization process, namely vulcanizing at the temperature of 160 ℃ for 8min in a high-temperature flat plate vulcanizing machine to obtain the rubber composite material.
The five parts of rubber composite materials obtained in the first to fifth embodiments are respectively subjected to mechanical property test experiments, and the existing common NBR rubber material is taken as a reference sample, and the mechanical property test experiments are carried out under the same conditions, wherein the mechanical property test experiments comprise tensile strength, 100% stress at definite elongation, elongation at break and hardness, the tensile strength, 100% stress at definite elongation and elongation at break are measured by a method in the strain property measurement of the tensile stress of GB528-2009 vulcanized rubber or thermoplastic rubber, and the hardness is measured by GB/T531.1-2008 vulcanized rubber or thermoplastic rubber press-in hardness test method part 1: shore durometer (shore hardness) was measured; then, five parts of the rubber composite materials obtained in the first to fifth examples and a control sample are subjected to shape memory performance test experiments respectively under the following experimental conditions: soaking in room-temperature water for 24 hours, bending for 180 degrees, and fixing an iron wire; vacuum drying for 12 h; removing external force after drying to naturally fix the mixture, and measuring the fixation rate; soaking in water at normal temperature for 24h to recover under the condition of water jet; and fifthly, measuring the recovery rate. The results are shown in tables 1 and 2, respectively.
TABLE 1 mechanical property test results of different shape memory polymer composite materials
As can be seen from Table 1, the tensile strength of the rubber composite prepared by the method of the invention is between 12 and 19MPa, which is slightly less than that of the control sample; the 100% stress at definite elongation of the rubber composite material prepared by the method is between 6 and 11MPa, which is slightly less than the 100% stress at definite elongation of a comparison sample; the elongation at break of the rubber composite material prepared by the method is between 150 and 500MPa, which is obviously superior to that of a comparison sample; the Shore hardness of the rubber composite material prepared by the method is 25-33, which is basically consistent with the Shore hardness of a comparison sample. Therefore, the rubber composite material prepared by the method has the advantages of good mechanical property, uniform texture, crosslinked network structure, tight interlayer combination, no delamination and other problems. In addition, in the rubber composite material prepared by the method, along with the reduction of the blending ratio of NBR/PEO, the tensile strength and 100 percent stress at definite elongation of the composite material are gradually reduced; however, the elongation at break and hardness both increased gradually with increasing PEO amount, and the increase in hardness was mainly due to the difference in NBR/PEO blend ratio, since PEO is a crystalline material and the increase in content thereof leads to an increase in hardness of the composite material.
TABLE 2 shape memory Performance test results of shape memory Polymer composites under Water stimulation
Name of shape memory polymer composite material Shape fixation Rate (%) Shape recovery (%)
Example one 99 100
Example two 99 100
EXAMPLE III 100 100
Example four 100 100
EXAMPLE five 99 99
Control sample 0 0
As can be seen from Table 2, the shape fixing rate of the rubber composite material prepared by the method of the invention after water stimulation is more than 99%, while the shape fixing rate of the control sample after water stimulation is only 0%; the rubber composite material prepared by the method of the invention has 100 percent of shape recovery rate after water stimulation, while the shape recovery rate of a control sample after water stimulation is only 0 percent. Therefore, the rubber composite material prepared by the method has good shape memory performance for the response of water jet excitation, can realize better shape memory fixation and shape recovery performance, and improves the utilization value of the shape memory polymer material.
Therefore, compared with the prior art, the invention has the beneficial effects that: the invention takes the traditional rubber-plastic high polymer material-nitrile-butadiene rubber (NBR) as a base material, compounds the functional high polymer material with water absorption-polyethylene oxide (PEO), the two materials supplement each other, under the action of a vulcanizing agent, a cross-linked network structure is formed, and the high polymer-based shape memory rubber composite material with spunlace shock response is prepared; under the condition of water stimulation, the functional polymer component of the rubber composite material can absorb water, so that the distance between molecular chains is increased, the shape of the rubber composite material can be changed under the action of external force, and the shape of the rubber composite material can be fixed by freeze drying; the rubber composite material is uniform in texture, tight in interlayer combination, free of problems such as delamination and the like, and has a transition temperature interval between room temperature and body temperature, better shape memory fixing and shape recovery performance, and wide application in the fields of biological medical treatment and the like. The method has the advantages of short process flow, simple operation, no special requirements on equipment, high production efficiency and low cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The spunlace stress response rubber composite material is characterized by comprising the following raw materials in parts by weight:
30-80 parts of nitrile rubber, 20-70 parts of polyethylene oxide, 0.8-1.6 parts of vulcanizing agent and 0-5 parts of processing aid.
2. A hydroentangling responsive rubber composite as set forth in claim 1, characterized by comprising the following raw materials in parts by weight:
50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.6 parts of vulcanizing agent and 0-5 parts of processing aid.
3. A hydroentangling responsive rubber composite as set forth in claim 1 or 2, characterized by comprising the following raw materials in parts by weight:
50-60 parts of nitrile rubber, 40-60 parts of polyethylene oxide, 1.0-1.5 parts of vulcanizing agent and 2-3 parts of processing aid.
4. A hydroentangling responsive rubber composite as set forth in claim 1 or 2, characterized in that:
the polyethylene oxide has a molecular weight of 80 ten thousand and a PDI of 1.1 to 1.4.
5. A hydroentangling responsive rubber composite as set forth in claim 1 or 2, characterized in that:
the vulcanizing agent is any one of dicumyl peroxide, sulfur, dibenzoyl peroxide and di-tert-butyl peroxide.
6. A hydroentangling responsive rubber composite as set forth in claim 1 or 2, characterized in that:
the processing aid comprises any one or more of a surfactant, a coupling agent, an antioxidant, an accelerator and an activator.
7. A method of preparing a hydroentanglement-responsive rubber composite as claimed in any one of claims 1 to 6, wherein: the method comprises the following steps:
mixing process, in a double-roller open mill, adjusting the roller temperature to 60-80 ℃, adding nitrile rubber and polyethylene oxide, and wrapping the rollers; after the roll is completely wrapped uniformly, adding a vulcanizing agent and a processing aid, and performing thin pass for 3-5 times from left to right; adjusting the roller spacing to 1-3mm, and discharging; standing for 18-24h, refining, and thinly passing for 3-5 times; adjusting the roller spacing to 1-3mm, and discharging;
and (3) a vulcanization process, wherein the vulcanization temperature is 150-.
8. A method of preparing a hydroentanglement-responsive rubber composite as claimed in claim 7, wherein:
the vulcanization process is carried out in a high-temperature plate vulcanizing machine.
9. A method of preparing a hydroentanglement-responsive rubber composite as claimed in claim 7, wherein:
in the mixing process, the roll wrapping time is 4-10 min.
10. A method of preparing a hydroentanglement-responsive rubber composite as claimed in claim 7, wherein:
the temperature of the remixing in the mixing process is 60-80 ℃.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103333377A (en) * 2013-07-26 2013-10-02 武汉工程大学 Water-swelling nitrile rubber and preparation method thereof
CN106046453A (en) * 2016-06-12 2016-10-26 湖北金科环保科技股份有限公司 Water-swelling nitrile butadiene rubber and preparation process thereof
CN108503941A (en) * 2018-04-12 2018-09-07 青岛科技大学 A kind of preparation method of the shape memory high molecule material based on thermoplastic sulfurized rubber
CN109337151A (en) * 2018-09-12 2019-02-15 安徽世界村智能装备有限公司 A kind of water swelling rubber and preparation method thereof
CN110041572A (en) * 2019-04-08 2019-07-23 沈阳化工大学 A kind of biology base gutta-percha memory material and preparation method thereof

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CN103333377A (en) * 2013-07-26 2013-10-02 武汉工程大学 Water-swelling nitrile rubber and preparation method thereof
CN106046453A (en) * 2016-06-12 2016-10-26 湖北金科环保科技股份有限公司 Water-swelling nitrile butadiene rubber and preparation process thereof
CN108503941A (en) * 2018-04-12 2018-09-07 青岛科技大学 A kind of preparation method of the shape memory high molecule material based on thermoplastic sulfurized rubber
CN109337151A (en) * 2018-09-12 2019-02-15 安徽世界村智能装备有限公司 A kind of water swelling rubber and preparation method thereof
CN110041572A (en) * 2019-04-08 2019-07-23 沈阳化工大学 A kind of biology base gutta-percha memory material and preparation method thereof

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