CN110041572A - A kind of biology base gutta-percha memory material and preparation method thereof - Google Patents
A kind of biology base gutta-percha memory material and preparation method thereof Download PDFInfo
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- CN110041572A CN110041572A CN201910275557.9A CN201910275557A CN110041572A CN 110041572 A CN110041572 A CN 110041572A CN 201910275557 A CN201910275557 A CN 201910275557A CN 110041572 A CN110041572 A CN 110041572A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
- C08L2203/18—Applications used for pipes
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
Abstract
A kind of biology base gutta-percha memory material and preparation method thereof is related to a kind of rubber and preparation method thereof, states each component that material compositions include following parts by weight: gutta-percha EUG, and 80 ~ 100 parts；Polyethylene glycol PEG, 1-5 part；Anti-aging agent, 1 ~ 3 part；Promotor, 1-2 parts；Reinforcing agent, 20 ~ 30 parts；6-8 parts of activator；Vulcanizing agent, 0.5 ~ 2 part.First weigh gutta-percha, anti-aging agent, promotor, reinforcing agent and vulcanizing agent, EUG is plasticated on a mill, sequentially add PEG, zinc oxide, promotor, anti-aging agent, reinforcing agent, paraffin oil, it is finally putting into the sulphur of accelerator NS and different numbers, sample is placed on vulcanizing press and is vulcanized.Biology base gutta-percha memory material of the present invention reaches corresponding transition temperature or more when temperature, up to 400% ~ 500% deformation quantity；The present invention improves shape memory polyurethane mechanical strength, so that biology base gutta-percha memory material has high-crosslinking-degree, mechanical strength is big.
Description
Technical field
The present invention relates to a kind of rubber and preparation method thereof, more particularly to a kind of biology base gutta-percha memory material and its
Preparation method.
Background technique
Shape-memory material is capable of fixing temporary shapes as a kind of intellectual material, and works as by environmental stimuli such as
Heat, pH, moisture, light, electricity etc. can be restored to their original shape.Since shape-memory material is in our life and work
There is huge potential application in industry, therefore it receives the extensive concern of people.Currently, since shape-memory material is additional in height
Effect in value technical application becomes more and more important, and the development of shape-memory material receives everybody close attention.Hot adaptive shape
The appearance of memory material has greatly pushed the development of shape-memory material.Traditional elasticity and solid plastics are incorporated in together by it
In a kind of material, can be realized the original shape of geometry complexity by solid plastics, do not need macroscopic view thawing or mold it is auxiliary
It helps, this unique performance further promotes the synthesis of the shape-memory material with complicated original shape.
For example, the deformation quantity of memorial alloy wants small compared to the deformation quantity of shape memory high molecule (SMP), shape memory is closed
Gold is easier to reach fatigue strength (being broken after deformation is repeated several times) than common stainless steel, and in process of production, than traditional
The manufacturing cost of steel or aluminium alloy is higher.Then, material scholar starts to develop similar to marmem and has shape note
Recall the shape-memory polymer (SMP) of effect；It can only be connected with metalwork when crosslinked polyethylene in SMP is as tubing, it cannot
It recycles and reuses；Zheng Ning etc. find traditional hot adaptive polyurethane can be acted on by transcarbamylase realize network reset to
The excipient again for realizing original shape, realizes good shape distortion by paper folding.However, critically important presently, there are one
Problem is accurately strain required for stress fully relaxed must could obtain, mainly since strain much lags behind accordingly
Stress relaxation, strain that poor linear dependence between corresponding stress relaxation causes to strain during stress relaxation can not
Predictability, therefore, accurately strain is merely able to realize by complete stress relaxation.Although at a higher temperature,
Accurate strain can be realized by complete stress relaxation within a relatively short time, but excessively high temperature can be made
At decomposition oxidation of the material during stress relaxation, at a lower temperature, complete stress relaxation can be taken a substantial amount of time,
It is highly detrimental to a large amount of processing of shape-memory material.
Summary of the invention
The purpose of the present invention is to provide a kind of biology base gutta-percha memory material and preparation method thereof, biology bases of the present invention
Gutta-percha memory material reaches corresponding transition temperature or more when temperature, up to 400% ~ 500% deformation quantity；The present invention improves shape note
Recall polyurethane mechanical strength, so that biology base gutta-percha memory material has high-crosslinking-degree, mechanical strength is big.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of biology base gutta-percha memory material, the material compositions include each component of following parts by weight: gutta-percha EUG,
80 ~ 100 parts；Polyethylene glycol PEG, 1-5 part；Anti-aging agent, 1 ~ 3 part；Promotor, 1-2 parts；Reinforcing agent, 20 ~ 30 parts；Activator 6-8
Part；Vulcanizing agent, 0.5 ~ 2 part.
A kind of biology base gutta-percha memory material, the composition further include the stone that following parts by weight are 4 ~ 6 parts
Wax oil (operation oil).
A kind of biology base gutta-percha memory material, the anti-aging agent are antioxidant 4020 or 4010NA.
A kind of biology base gutta-percha memory material, the promotor are accelerator NS.
A kind of biology base gutta-percha memory material, the reinforcing agent are nano silica
A kind of biology base gutta-percha memory material, the activator are stearic acid and ZnO.
A kind of biology base gutta-percha memory material, the polyethylene glycol (peg) molecule amount are 4000-6000.
A kind of preparation method of biology base gutta-percha memory material, the method includes following preparation steps:
Gutta-percha, anti-aging agent, promotor, reinforcing agent and vulcanizing agent are first weighed, open mill is warming up to 65 °C, by EUG in mill
Plasticate on machine, Bao Tong 10 times, wrap up it uniformly on a mill, constantly increase the distance between double roller, sequentially add PEG,
Zinc oxide, promotor, anti-aging agent, reinforcing agent, paraffin oil are finally putting into the sulphur of accelerator NS and different numbers, mixed to it
Slice after even；Sample is placed on vulcanizing press and is vulcanized, 150 DEG C of curing temperature, pressure 120MPa, vulcanization time 30min are
It can.
The advantages and effects of the present invention are:
The present invention improves the small disadvantage of memorial alloy deformation quantity, which changes temperature up to corresponding when temperature
Degree or more, up to 400% ~ 500% deformation quantity；The present invention improves the low disadvantage of shape memory polyurethane mechanical strength, biology base
Gutta-percha memory material has high-crosslinking-degree, and mechanical strength is larger.The present invention can prepare the connector tubing of substitution crosslinked polyethylene,
Using the memory performance of the memory material, not only joint can be made easily operated, can also improve junction leakproofness and
Corrosion resistance.Macromolecule memory material with rubber and plastic dual character of the invention, strand have stronger order type structure, more hold
Easily regularly arranged formation crystallization, since lattice has constraint effect, prevent it is only to impart gutta-percha from moving freely for strand
Special rubber and plastic dual character can reach two kinds of structures of crosslinking and crystallization and coexist after appropriate crosslinking, this is that other rubber cannot compare
's.The memory material deformation quantity is big, mechanical strength is high, is a kind of memory material for having very much prospect of the application.
Detailed description of the invention
Fig. 1 is sulphur deformation-recovery rate curve under material temperature of the present invention；
Fig. 2 is that material of the present invention replys Long-term change trend rate；
Fig. 3 is tensile strength of material curve of the present invention.
Specific embodiment
The present invention is set forth combined with specific embodiments below.Embodiment only has the present invention illustrative
Effect, without the effect of any restrictions, any non-reality that those skilled in the art makes on the basis of the present invention
The modification of matter, all should belong to protection scope of the present invention.
The present composition includes each component of following parts by weight: EUG, and 80 ~ 100 parts；PEG, 1-5 parts；Anti-aging agent, 1 ~ 3
Part；Promotor, 1 ~ 2 part；Reinforcing agent, 20 ~ 30 parts；6-8 parts of activator, vulcanizing agent, 0.5 ~ 2 part.
It being preferably in the above scheme, the composition includes each component of following parts by weight: EUG, and 100 parts；PEG, 5
Part；Anti-aging agent, 2 parts；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 2 parts.
In any of the above-described scheme preferably, the composition includes each component of following parts by weight: EUG, and 100 parts；
PEG, 1 part；Anti-aging agent, 2 parts；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 0.5 part.
In any of the above-described scheme preferably, the composition includes each component of following parts by weight: EUG, and 100 parts；
PEG, 2 parts；Anti-aging agent, 2 parts；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 1 part.
In any of the above-described scheme preferably, the composition includes each component of following parts by weight: EUG, and 100 parts；
PEG, 4 parts；Anti-aging agent, 2 parts；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 1.5 parts.
In any of the above-described scheme preferably, the composition further includes the paraffin oil (behaviour that following parts by weight are 4 ~ 6 parts
Make oil).
In any of the above-described scheme preferably, the composition further includes the paraffin oil (operation that following parts by weight are 5 parts
Oil).
In any of the above-described scheme preferably, the anti-aging agent is antioxidant 4020 or 4010NA.
In any of the above-described scheme preferably, the promotor is accelerator NS.
In any of the above-described scheme preferably, the reinforcing agent is nano silica.
In any of the above-described scheme preferably, ingredient and application method are as follows: first claim the gutta-percha, anti-aging agent promotes
Open mill, is warming up to 65 °C by agent, reinforcing agent and vulcanizing agent, and EUG is plasticated on a mill, Bao Tong 10 times or so, makes it
Even package on a mill, constantly increases the distance between double roller, sequentially add zinc oxide, promotor, anti-aging agent, reinforcing agent,
Paraffin wax is finally putting into the sulphur of accelerator NS and different numbers, the slice after it is mixed.Sample is placed on compression molding
Vulcanize on machine, 150 DEG C of curing temperature, pressure 120MPa, vulcanization time 30min.
Memory material composition of the invention is on the basis of memory material formula is blended in former natural rubber with gutta-percha
It improves, rubber all uses gutta-percha composition instead.
Embodiment 1: a kind of biology base gutta-percha memory material composition, including EUG, 100 parts；PEG, 5 parts；Anti-aging agent, 2
Part；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 2 parts.Wherein, the anti-aging agent is anti-aging agent
4020, the reinforcing agent is nano silica, and the promotor is accelerator NS.
Embodiment 2: a kind of biology base gutta-percha memory material composition, including EUG, 100 parts；PEG, 1 part；Anti-aging agent, 2
Part；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 0.5 part.Wherein, the anti-aging agent is anti-aging agent
4010NA, the reinforcing agent are nano silica, and the promotor is accelerator NS.
Embodiment 3: a kind of biology base gutta-percha memory material composition, including EUG, 100 parts；PEG, 2 parts；Anti-aging agent, 2
Part；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 1 part.Wherein, the anti-aging agent is anti-aging agent
4020, the reinforcing agent is nano silica, and the promotor is accelerator NS.
Embodiment 4: a kind of biology base gutta-percha memory material composition, EUG, 100 parts；PEG, 4 parts；Anti-aging agent, 2 parts；
Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 1.5 parts.Wherein, the anti-aging agent is anti-aging agent
4010NA, the reinforcing agent are nano silica, and the promotor is accelerator NS.
Embodiment 5: a kind of biology base gutta-percha memory material composition, including EUG, 100 parts；PEG, 5 parts；Anti-aging agent, 2
Part；Promotor, 1.2 parts；Reinforcing agent, 25 parts；Activator, 7 parts；Vulcanizing agent, 2 parts.Wherein, the anti-aging agent is anti-aging agent
4010NA, the reinforcing agent are nano silica, and the promotor is accelerator NS.
Embodiment 6: a kind of biology base gutta-percha memory material composition, including EUG, 100 parts；PEG, 1 part；Anti-aging agent, 2
Part；Promotor, 1.2 parts；Reinforcing agent, 20 parts；Activator, 7 parts；Vulcanizing agent, 0.5 part.Wherein, the anti-aging agent is anti-aging agent
4020, the reinforcing agent is nano silica, and the promotor is accelerator NS.
A kind of beneficial effect provided by the invention is: (1) biology base gutta-percha memory material provided by the invention has only
Special rubber and plastic dual character crystallizes under room temperature at room temperature compared with General Purpose Rubber, and material is harder, and thermoplastic material state is presented；With
Plastics are compared, and have low melting point and excellent cold plasticity processability；It is heated to certain temperature, shows the elastomeric state of rubber,
With lower recovery temperature, while there is higher toughness.(2) biology base gutta-percha memory material provided by the invention has
With the superior compatibility of other rubber and plastic material.Pure gutta-percha does not have a color, gutta-percha product due to being added to dyestuff and
With various colors.(3) with gutta-percha be raw material made by product, be not present catalyst residual phenomena, it is also not any
Toxic side effect, application prospect are very extensive.
Detailed description of the invention Fig. 1, Fig. 2 is embodiment 1, embodiment 2, embodiment 3, the biology base gutta-percha note of the preparation of embodiment 4
Recall the memory performance indicatrix of material；Fig. 3 be embodiment 1, embodiment 2, embodiment 3, embodiment 4 prepare biology base gutta-percha
The mechanical performance index figure of memory material.
As seen from Figure 1, under same temperature, with the increase of sulphur number, deformation-recovery rate curve is moved to the left；40
Before DEG C, less, the Rr of 2 parts of sulphur is much larger than the Rr of 0.5 ~ 1.5 part of sulphur for the Rr variation of 0.5 ~ 1.5 part of sulphur；After 40 DEG C, sulphur
Sulphur number is bigger, and the Rr under same temperature is higher；When sulphur number is 2 parts, Rr is maximum；The deformation recovery temperature range of EUG
It is 40 DEG C ~ 55 DEG C；When sulphur number is 2 parts, deformation recovery temperature range can narrow down to 30 ~ 45 DEG C.Add in EUG sizing material
Enter a certain amount of sulphur, sizing material can generate crosslinking appropriate, when gutta-percha has cross-linked network structure and crystalline texture simultaneously
It will show good shape-memory properties.Fig. 2, with the increase of sulfur consumption, this cross-linked network is more, replys trend
It is more obvious.With the increase of sulphur number, RRFirst reduce and increases afterwards, when sulphur is 2 parts, RRThere is maximum value.As seen from Figure 3
With the increase of sulfur consumption, tensile strength first increases and then decreases, there is maximum value when sulphur number is 1.5；Elongation at break with
The increase of sulfur consumption and increase.
In conclusion the present invention provides a kind of biology base gutta-percha memory material, the biology base gutta-percha memory material
With unique rubber and plastic dual character.When temperature is up to more than corresponding transition temperature, up to 400% ~ 500% deformation quantity, high-crosslinking-degree,
Mechanical strength is larger, can reach two kinds of structures of crosslinking and crystallization after appropriate crosslinking and coexists, and deformation-recovery rate is high, and recovery temperature is low,
About 60 DEG C or so.The invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of biology base gutta-percha memory material, which is characterized in that the material compositions include each group of following parts by weight
Point: gutta-percha EUG, 80 ~ 100 parts；Polyethylene glycol PEG, 1-5 part；Anti-aging agent, 1 ~ 3 part；Promotor, 1-2 parts；Reinforcing agent, 20 ~
30 parts；6-8 parts of activator；Vulcanizing agent, 0.5 ~ 2 part.
2. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the composition further includes
The paraffin oil (operation oil) that following parts by weight are 4 ~ 6 parts.
3. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the anti-aging agent is anti-old
Agent 4020 or 4010NA.
4. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the promotor is to promote
Agent NS.
5. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the reinforcing agent is nanometer
Silica.
6. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the activator is tristearin
Acid and ZnO.
7. a kind of biology base gutta-percha memory material according to claim 1, which is characterized in that the polyethylene glycol
(PEG) molecular weight is 4000-6000.
8. a kind of preparation method of biology base gutta-percha memory material, which is characterized in that the method includes following preparation steps:
Gutta-percha, anti-aging agent, promotor, reinforcing agent and vulcanizing agent are first weighed, open mill is warming up to 65 °C, by EUG in mill
Plasticate on machine, Bao Tong 10 times, wrap up it uniformly on a mill, constantly increase the distance between double roller, sequentially add PEG,
Zinc oxide, promotor, anti-aging agent, reinforcing agent, paraffin oil are finally putting into the sulphur of accelerator NS and different numbers, mixed to it
Slice after even；Sample is placed on vulcanizing press and is vulcanized, 150 DEG C of curing temperature, pressure 120MPa, vulcanization time 30min are
It can.
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Application publication date: 20190723 |