Specific embodiment
The embodiment of the participation in the election detailed description being preferable to carry out method of the invention below and inclusion can be more easily understood this
Bright content.Unless otherwise defined, all technology used herein and scientific terminology have common with art of the present invention
The identical implication that technical staff is generally understood that.When there is contradiction, the definition in this specification is defined.
As used herein term " by ... preparation " synonymous with "comprising".Term "comprising" used herein, " inclusion ",
" having ", " containing " or its any other deformation it is intended that cover non-exclusionism inclusion.For example, comprise the combination of listed elements
Thing, step, method, product or device are not necessarily solely those key elements, but can include not expressly listed other key elements or
This kind of compositionss, step, method, product or the intrinsic key element of device.
Conjunction " Consists of " excludes any key element do not pointed out, step or component.If be used in claim, this
Phrase will make claim be closed so as to not comprise the material in addition to the material that those describe, but relative normal
Except rule impurity.When phrase " Consists of " occurs in and is rather than immediately following after theme in the clause of claim main body,
It is only limited to the key element described in this clause;Other key elements are not excluded outside as overall described claim.
Equivalent, concentration or other value or parameter are excellent with scope, preferred scope or a series of upper limit preferred value and lower limit
During the Range Representation that choosing value limits, this is appreciated that and specifically discloses by any range limit or preferred value and any scope
All scopes that arbitrary pairing of lower limit or preferred value is formed, regardless of whether whether this scope separately discloses.For example, when open
During scope " 1 to 5 ", described scope should be interpreted as including scope " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numerical range is herein described, unless otherwise indicated, otherwise this scope is intended to include its end
Value and all integers within the range and fraction.
Singulative includes plural number and object is discussed, unless the context clearly dictates otherwise." optional " or " arbitrarily
A kind of " refer to that the item describing thereafter or event may or may not occur, and this description include event generation situation and
The situation that event does not occur.
Approximate term in specification and claims is used for modifying quantity, represents that the present invention is not limited to this concrete
Quantity, also includes the part of the correction of acceptable change without lead to related basic function close to this quantity.Phase
Answer, modify a numerical value with " about ", " about " etc., mean and the invention is not restricted to this exact numerical.In some examples, approximately
Term likely corresponds to the precision of the instrument of measured value.In present specification and claims, scope limits permissible
Combination and/or exchange, these scopes include all subranges contained therebetween if not stated otherwise.
Additionally, the quantitative requirement to key element or component for the indefinite article " a kind of " and " one " before key element of the present invention or component
(i.e. occurrence number) unrestriction.Therefore " one " or " a kind of " should be read as including one or at least one, and odd number
The key element of form or component also include plural form, unless the obvious purport of described quantity refers to singulative.
" polymer " means by the polymerizable compound prepared by the monomer of the identical or different type of polymerization.Generic term
" polymer " comprises term " homopolymer ", " copolymer ", " terpolymer " and " copolymer ".
" copolymer " means the polymer by being polymerized at least two different monomers preparations.Generic term " copolymer " includes
(it is general with term " terpolymer " for term " copolymer " (it is typically in order to refer to by the polymer of two kinds of different monomers preparations)
In order to refer to by the polymer of three kinds of different monomers preparations).It also comprises the polymer manufacturing by being polymerized more kinds of monomers.
" blend " means the polymer that two or more polymer is formed by the common mixing of physics or chemistry method.
The present invention provides a kind of preparation method of flower arrangement device, comprises the steps:
(1) put into, by be inserted with flowers, the neck location with the spherical rubber container of cervical region being marked with water with stopple;
(2) band fixing band stopple and band cervical region spherical rubber container neck contacts face are used;
Wherein, described band cervical region spherical rubber container material is modified polyurethane composition, and it includes at least polylactic acid, gathers
Urethane, piperazinedione acid, expanded PTFE and mesoporous silica;Band material is rubber;Band stopple material steeps for EVA
Cotton or high-elastic PE.
In one embodiment, described band cervical region spherical rubber container material is modified polyurethane composition, its preparation
Method comprises the steps:
(1) pre-polymerization:Add diisocyanate and dihydroxylic alcohols by weight in reaction bulb, be warming up to 80~100 DEG C of reactions 3
~8h, is cooled to room temperature, filters, 30~40 DEG C of dryings, obtains polyurethane prepolymer;
(2) copolymerization:Add by weight in lactide, caprolactone and catalyst vacuum response bottle, under vacuum condition, 130
~150 DEG C of reaction 20~30h prepare polylactic acid prepolymer, are cooled to 80 DEG C, add polyurethane in PEG-600 and step (1) pre-
Polymers, 80 DEG C of reaction 3~6h, add deionized water to be settled, filter, be dried, obtain polylactic acid-polyurethane copolymer;
(3) modified:Solid in step (2) hydrogenperoxide steam generator of 2vt% acetum and 5wt% is dissolved, presses
Weight portion add piperazinedione acid solution, react 3~8h, with 10wt%NaOH aqueous solution adjust pH be in neutrality after filter, be dried;
(4) it is blended:Under the conditions of in step (3), solid is warming up to 110~140 DEG C, solid sequentially adds after being completely dissolved
Expanded polytetrafluoroethylsealing granule and mesoporous silica particles, after stirring, solid is in molten condition vacuumizing and defoaming, immediately
The mixture of mix homogeneously is poured in mould, mould is put into heating 2h in 100 DEG C of baking oven, raise for case temperature to 120
DEG C recurring 2h, the demoulding, that is, obtain spherical rubber container.
In one embodiment, the preparation method of described modified polyurethane composition, calculates by weight, at least includes
60~75 weight portion diisocyanate;5~12 weight portion dihydroxylic alcohols;10~20 weight portion lactides;Oneself is interior for 10~20 weight portions
Ester;0.05~0.5 weight portion expanded PTFE;0.05~0.5 weight portion mesoporous silica.
In one embodiment, described diisocyanate is at least hexamethylene diisocyanate, 4,4- diphenylmethyl
Alkane diisocyanate, Toluene-2,4-diisocyanate, 4- diisocyanate, 1,5- naphthalene diisocyanate, PPDI, isophorone two are different
One or more of cyanate;Preferably, described diisocyanate is at least hexamethylene diisocyanate, 4,4- diphenyl
Methane diisocyanate, Toluene-2,4-diisocyanate, one of 4- diisocyanate, PPDI, isophorone diisocyanate
Or it is multiple;Preferably, described diisocyanate is at least hexamethylene diisocyanate, 4,4- diphenylmethane diisocyanate
One or more of ester, PPDI, isophorone diisocyanate.
In one embodiment, described dihydroxylic alcohols are at least BDO, diethylene glycol, Polyethylene Glycol, polyester two
One or more in first alcohol, polyether Glycols;Preferably, described dihydroxylic alcohols are at least BDO, diethylene glycol, poly- second two
One or more in alcohol;Preferably, described dihydroxylic alcohols are at least BDO, one or more in diethylene glycol.
In one embodiment, described be modified as on polylactic acid-polyurethane copolymer grafting piperazinedione acid, it connects
Branch rate is 1~3%.
In one embodiment, on described polylactic acid-polyurethane copolymer, the percent grafting of piperazinedione acid is 1~2%.
Polyurethane (Polyurethane, PU) has the carbamate (- NHCOO-) unit of repetition, except containing substantial amounts of
Outside carbamate groups, may be also containing hydrogen bond between ester group, ether, urea groups and macromole etc. in structure.PU generally by
Polyhydric alcohol (PEPA or polyether polyol), diisocyanate and chain extender polycondensation synthesis, can be divided into soft in its structure
Section and hard section two parts, soft section is made up of polyester or/and polyethers, and hard section is to become packet by epoxide formic acid esters, chain extender etc.
Become, can be seen that PU is a kind of linear block polymer by this version, the formation of soft section and hard section and its respective heat
Mechanics incompatibility is related, and due to there are different thermodynamics incompatibilities, the formation that flocks together of the soft section in polymer is soft
Duan Xiang, hard section flocks together again and forms hard section phase, and microphase-separated occurs then.Separated degree between soft, hard section is passed through hard
Oxygen key amount between section and hard section can be seen that, and soft, hard section phase mixability can be by the oxygen key amount between hard section and soft section
Find out.The hard section of polyurethane mutually serves the effect of physical crosslinking in the base, and soft section is crosslinked by hard section phase region, is polyurethane
Pliability provides necessary condition, just because of the unique micro phase separation structure of polyurethane so that its have excellent elasticity,
The advantages of tensile property, wearability and low clean crystalline substance are spent, and structure is easy to process and designs.
Polylactic acid (Polylacticacid, PLA) is also referred to as polylactide, is to be polymerized with lactic acid (LA) for principal monomer
Polymer, the raw material of lactic acid is starch, by the plants such as Semen Maydiss, Semen Tritici aestivi extract, starch through enzyme decompose after obtained Portugal
Grape sugar, recycles the role transformation of lactic acid bacteria fermentation to become PLA, is a kind of tunning of microorganism.It can be seen that this raw material
Rich and easy to get, and renewable, substantially reduce the dependence to petrochemical industry, be conducive to environmental conservation.According to optically active not
With lactic acid can be divided into D-lactic acid and L-lactic acid, and the raceme being made up of equivalent d-isomer and levo form) lactic acid, phase
Ying Di, polylactic acid also has these three basic stereoisomers of poly- L-lactic acid, Poly-L-lactic acid and ploy DL lactic caid, a wherein poly- left side
Rotation lactic acid and ploy DL lactic caid are easier to obtain.
PLA is a kind of typical biodegradable aliphatic polyester, and the final product of its degraded is pollution-free, non-hazardous
H2O and CO2, various products use convenient post-treatment, environmental protection, there is nontoxic, nonirritant, also there is certain biocompatibility,
It is widely applied to biomedicine field.The mechanical performance of polylactic acid is good with physical property, antibacterial and mouldproof, and plasticization is processed into
Type, all has wide market prospect in all many-sides such as industrial and civilian plastics, packaging, hygienic article, fabric.
PLA is a kind of aliphatic polyester, contains ester bond in molecular structure, facile hydrolysiss so as to have good degradation property,
Final catabolite is H2O and CO2, to environment non-hazardous.The degraded of PLA can be divided into two classes:(1) simple hydrolysis degraded, principle
For the ester bond in water molecules attack PLA strand, ester bond is in H+Effect is lower to rupture, and macromolecular chain disconnects, and is degraded to water soluble
Lactic acid monomer, and then be decomposed into carboxylic acid (end carboxyl) and alcohol, the catabolite containing end carboxyl is typically trapped in PLA product
Portion, can be produced from acceleration effect, so it has been generally acknowledged that the inside degradation rate of PLA product has research table more than superficial degradation speed
Bright, the PDLLA of non-crystalline is more easy to hydrolytic degradation compared to the PLLA of crystalline state;(2) microorganism and ferment degraded:This method is
The degradation model of topmost degradation material in nature, the enzyme in nature can not direct attack PLA, but first allow PLA
There is hydrolysis so as to strand rupture, molecular weight reduction, subsequently accept the attack of enzyme, degrade further.Water-fast polymerization
The process that thing is changed into water-soluble substanceses in vivo is referred to as molten candle effect.Macroscopically see, corrosion process shows as the structure quilt of sample
Destroy, volume diminishes, and is broken into fragment, lose original mechanical strength, overall structure modification is weightless, finally degradable and quilt
Absorption of human body or exclusion are external;See on microcosmic that, as polymer macromolecule chain break, molecular weight reduces rapidly, becomes small molecule
And be dissolved in body fluid, gulped down by cell instigate and convert, the degraded of metabolism PLA shows as procedure below:After a large amount of water suctions in PLA molecule,
Cause the ester linkage breaking in macromolecular chain, hydrolyze, then solable matter constantly spreads, PLA sample burst produces fragment,
Subsequently fragment dissolves in time.
The soft section of modified polyurethane is made up of biodegradable aliphatic polyesters such as polylactic acid, and hard section is then by aliphatic (such as
Isophorone diisocyanate) or alicyclic diisocyanate and small molecule glycol composition, thus obtain degradable, avirulence
Polyurethane.Ester due to this kind of polyurethane soft section is typically synthesized with small-molecule substance, and susceptible to hydrolysis, after hydrolysis
Small molecule can also be become.
The basic structure of diketopiperazine compound is by the Cyclic dipeptides of two amino acid condensations, because its skeleton has
Stable six-membered ring structure, and have two hydrogen-bond donors and two hydrogen bond receptors so that DKPs have stronger biological activity and
Pharmacologically active, becomes an important pharmacophore in pharmaceutical chemistry.A series of rings two are found in recent years from Marine microorganism
Peptides, research shows that its function is not limited to the aspects such as antibacterial, cytotoxic activity, in quorum sensing regulatory mechanism
Act as the key player of signaling molecule.
Piperazine ring is conventional aza ring in pharmaceutical chemistry research, and introducing piperazine ring in drug molecule can effectively adjust
The physicochemical property of nodal compound, improves the pharmacokinetic property of medicine, and a lot of compounds containing piperazine ring show strong
Antifungal activity, a series of derivants that chain amino piperazine ring is modified show good antifungic action, show wide resisting
Funguses are composed, and have good inhibition to antibacterials such as bacillus subtilises.
In the present invention, piperazinedione acid has to bacillus subtilis, Pseudomonas fluorescence and staphylococcus aureuses etc.
Certain inhibitory action, can extend the fresh keeping time of flower.
In one embodiment, described expanded polytetrafluoroethylsealing and the mass ratio of mesoporous silica are (0.5~2):
1;Preferably, described expanded polytetrafluoroethylsealing and the mass ratio of mesoporous silica are (0.5~1.5):1.
In one embodiment, the number-average molecular weight of described expanded polytetrafluoroethylsealing is 5000~30000;Preferably,
The number-average molecular weight of described expanded PTFE is 8000~20000.
In one embodiment, the pore size of described expanded polytetrafluoroethylsealing is 0.1~1.5 μm.
Expanded PTFE (expanded Polytetrafluoroethylene, abbreviation e-PTFE) is a kind of new
The macromolecular material of environmental protection, is widely used in the fields such as clothing, building, electronics, chemical industry medical treatment.It is by politef
(PTFE) it is prepared from through stretch processes, defines the duct of about 0.1~1.5 μm of rank, porosity is up to 82%.e-
PTFE inherits the advantage of PTFE, has the microcosmic network structure of " microfibre node ", extremely excellent resistance to chemical corrosion,
Ageing resistace, low-surface-energy, insulating properties and fire resistance.The micron level duct that it has, can effectively stop liquid
Passing through of state water and solid dust, has excellent functions of waterproof and dustproof, and high voidage can allow air and water vapour divide again
Son passes through, and has good water proof and dust proof and air-moisture-permeable function, and therefore e-PTFE is forth generation the most promising
Waterproof and breathable product.
Number-average molecular weight is to be measured based on membrane permeation method.
Membrane osmotic pressure method adopts two capillaries, two infiltration connection ponds, the device that centre semipermeable membrane AB separates, infiltration
While containing macromolecular solution, another side contains solvent in pond.The pore size of semipermeable membrane allows solvent molecule freely to pass through, and solute divides
Sub-volume is big, can not pass through semipermeable membrane.When infiltration starts, solvent molecule is more than solution by the quantity that semipermeable membrane enters solution pool
In pond, solvent molecule enters the quantity of solvent cell by semipermeable membrane.Solution concentration is gradually diluted, the capillary tube of solution pool
Liquid level gradually rises, and when system reaches thermodynamic equilibrium class hour, solution pool reaches certain value with the capillary tube liquid-column height difference of solvent cell,
The two pond solvent molecules quantity that interpenetrates reaches dynamic equilibrium, the at this moment difference of two capillary liquid-column heights, i.e. the pressure of solvent post
Power difference is the osmotic pressure π of solution.
π=△ h D (1)
In formula:△ h is the difference (cm) of capillary tube liquid-column height;D is the density (g/mL) of solvent.The infiltration of perfect solution
Pressure Van't Hoff (Vant Hoff) two laws are represented by:
π=NRT/V=RTC/Mn (2)
In formula:V liquor capacity, molal quantity in V for the N solute, the number-average molecular weight of Mn solute, C solution
Concentration (g/100mL), R constant, 848.4;T operates absolute temperature.
By (1), (2) formula obtains Δ h D=RTC/Mn
Mn=RT/ [(Δ h/c) D]
Δ h is that Δ hc claim reduced osmotic pressure from the Δ h value numerically read.
Van't Hoff's law, only in perfect solution, could be set up in the solution of infinite dilution, that is,:
Mn=RT/ (Δ h/c) c=0 D (3)
So (Δ h/c) c=0 is tried to achieve using extrapolation, that is, prepare a series of macromolecule polymer solution of variable concentrations,
Measure its Δ h value respectively, then with concentration c as abscissa, with Δ h/c as vertical coordinate, draw a straight line this straight line c=that extrapolates
Intercept Δ h/c at 0 substitutes into (3) formula, can try to achieve the number-average molecular weight of high polymer.
In one embodiment, the pore size of described mesoporous silica is 1nm~2nm.
Mesoporous silica is with Organic substance as template, is synthesized by the interfacial assembly between template and inorganic species
Have narrow pore size distribution, pore passage structure rule inorganic porous material.
Compared with traditional porous material, being mainly characterized by of orderly poromerics:
L () has well-regulated pore passage structure;
(2) pore-size distribution is very narrow, and can adjust between 1.3-2nm;
(3) through optimum synthesis condition or post processing, can have good heat stability and hydrothermal stability;
(4) granule has well-regulated profile;
(5) duct shape and aperture size can be controlled by selecting the surfactant of different structure, and can be micro-
The duct order of height is kept in metrical scale.
The preparation method of mesoporous silica is as follows:
C2-8-2Surfactant molecule structure formula
C by 2mol2-8-2Surfactant and 10mol Na2SiO3·9H2O, is dissolved in the deionized water of 30.0ml respectively
In, in the case of being then stirred at room temperature, two kinds of solution are mixed rapidly, after 20 minutes, dropwise instill in the case of stirring
The sulfuric acid solution of 3mol/L, reconciling PH is between 9-10, stands 5h, then constant temperature 3 in 80 DEG C of baking oven under mixed liquor room temperature
My god, the solid precipitation obtaining, through filtering, dries in atmosphere after washing, obtains organic/inorganic combination product.Product with 1.5 DEG C/
The speed of min is heated to 540 DEG C in atmosphere, and constant temperature 6h obtains the product of roasting.
The sign of mesoporous silica:
Using Barertt-Joyner-Halenda (BJH) model analysiss aperture, synthesis sample aperture in 1.5nm
Left and right.
The micron level duct that expanded PTFE and mesoporous silica have, can effectively stop aqueous water and solid
Passing through of body dust, has excellent functions of waterproof and dustproof, and high voidage can allow air and water vapour molecule smoothly lead to again
Cross, there is good airing function, both synergism, improve the size in modified polyurethane aperture, improve modified polyurethane
The waterproof and breathable function of compositionss.
The aperture of air-vent is more than 0.33nm, and less than 0.4nm, that is, the aperture of air-vent is more than oxygen molecule and carbon dioxide
The diameter of molecule, less than hydrone diameter so that oxygen and carbon dioxide molecule can pass through, hydrone cannot pass through, from
And realize air permeable waterproof.
In the present invention, modified polyurethane composition includes at least polylactic acid, polyurethane, piperazinedione acid and e-PTFE
Ethylene, mesoporous silica;By polylactic acid, piperazinedione acid modified polyurethane, then with expanded PTFE and micropore
Silica dioxide granule carries out function that the modified polyurethane composition that prepare have environmental protection, waterproof and breathable and sterilization is blended,
Ensure that the plants such as flowers pluck follow-up supervention educate, the effect of Growth and anthesis.
In addition contain ester bond in modified polyurethane composition molecular structure in the present invention, it has good degradation property,
Final catabolite is H2O and CO2, to environment non-hazardous, therefore modified polyurethane composition not only has excellent elasticity, draws
The advantages of stretching performance, wearability and low clean crystalline substance and spend, and structure is easy to process and design, and efficient and convenient during packaging flower, it is breathed freely
Waterproof, antibacterial effective efficiency help the plants such as flowers during flower transport and storage and educate, grow in the follow-up supervention of harvesting
Bloom, and, when modified polyurethane composition breakage can not reuse, it is degradable, will not be to environment.
Below by embodiment, the present invention is specifically described.Be necessary it is pointed out here that, following examples are only used
In the invention will be further described it is impossible to be interpreted as limiting the scope of the invention, professional and technical personnel in the field
Some the nonessential improvement made according to the content of the invention described above and adjustment, still fall within protection scope of the present invention.
In addition, if not having other explanations, raw materials used is all commercially available, is purchased from traditional Chinese medicines chemical reagent.
A1:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and polytetrafluoroethylgranule granule, silica dioxide granule mix
(tetrafluoroethene granule pore size is 2 μm to the compositionss obtaining, and number-average molecular weight is 10000, and silicon dioxide aperture size is
10nm, piperazinedione acid percent grafting is 2%)
Preparation method is as follows:
(1) silica dioxide granule:Transition metal salt ZnCl by 0.3g2Being added to 100mL substance withdrawl syndrome is
In the dilute hydrochloric acid solution of 2mol/L, slaine is made to be dissolved completely in aqueous solution in 35 DEG C of steady temperatures with magnetic agitation, so
2.5g nonionic surfactant ether oxygen class surfactant P123 is added backward, magnetic force stirs in 35 DEG C of constant temperature in above-mentioned system
Mix 3 hours, afterwards to Deca 5.6mL tetraethyl orthosilicate (TEOS) in above-mentioned system, continue stirring 6 hours afterwards, under room temperature
Standing 24 hours, pours out supernatant, remaining white depositions is transferred in crucible, finally calcines 3 hours under the conditions of 550 DEG C
(batch-type furnace is per minute to heat up 5 DEG C);
(2) 9 weight portions 1,4- butanediol (BDO) are added to 68 weight portion hexamethylene diisocyanates (HDI)
In 250ml there-necked flask, it is warming up to 80 DEG C of reaction 5h, after having reacted, is cooled to room temperature, product is transferred in beaker,
Add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats aforesaid operations three times, really
Protect unreacted hexamethylene diisocyanate in product to clean up, 30 DEG C of solid product after cleaning is dried under vacuum to
Constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(3) a certain amount of 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h, eliminating water under the conditions of 90 DEG C
After be cooled to room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add catalysis
Agent stannous octoate (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, 140
Under the conditions of DEG C, reaction 24h prepares prepolymer, and after the completion of reaction, prepolymer is cooled to 80 DEG C, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(4) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(5) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion polytetrafluoroethylgranule granule, stir 0.5h, add 0.1 parts by weight of silica granule, then
Stirring 1h, solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, mould is put into
Heat 2h in 100 DEG C of baking oven, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber container.
A2:Polylactic acid-polyurethane copolymer expanded PTFE the granule of grafting piperazinedione acid, silica dioxide granule
(varicosity tetrafluoroethene granule pore size is 0.2 μm to the mixed compositionss obtaining, and number-average molecular weight is 10000, silicon dioxide aperture
Size is 10nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) a certain amount of 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h, eliminating water under the conditions of 90 DEG C
After be cooled to room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add catalysis
Agent stannous octoate (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, 140
Under the conditions of DEG C, reaction 24h prepares prepolymer, and after the completion of reaction, prepolymer is cooled to 80 DEG C, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane.The solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 parts by weight of silica
Grain, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Put into heating 2h in 100 DEG C of baking oven, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber container.
Silica dioxide granule preparation method is with A1 step (1).
A3:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product.By the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, after the completion of reaction, is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A4:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 5000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 1%)
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) a certain amount of 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h, eliminating water under the conditions of 90 DEG C
After be cooled to room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add catalysis
Agent stannous octoate (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, 140
Under the conditions of DEG C, reaction 24h prepares prepolymer, and after the completion of reaction, prepolymer is cooled to 80 DEG C, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A5:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 3%)
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) a certain amount of 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h, eliminating water under the conditions of 90 DEG C
After be cooled to room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add catalysis
Agent stannous octoate (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, 140
Under the conditions of DEG C, reaction 24h prepares prepolymer, and after the completion of reaction, prepolymer is cooled to 80 DEG C, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.1 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH water
Solution adjust pH be in neutrality after filter, soaking to trapped substance, washing, sucking filtration, by products therefrom in vacuum drying oven be dried
48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A6:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 5 weight portions 1,4- butanediol (BDO) and 60 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 10 weight portion L- lactides and 10 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, is cooled to 80 DEG C under vacuum, adds the PEG-600 after 60ml vaccum dewatering, and stirring is all
After even, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, react 5h at 80 DEG C, in course of reaction,
Reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed is poured slowly into deionized water
Middle sedimentation, sucking filtration, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane copolymer;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A7:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 15 weight portions 1,4- butanediol (BDO) and 75 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 20 weight portion L- lactides and 20 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, after reaction terminates, is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A8:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 9 weight portion diethylene glycols (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, after reaction terminates, is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A9:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, nanoporous silica
Silicon grain mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore two
Silicon oxide pore size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) by 9 weight portion BDOs (BDO) and 68 weight portions 4,4- diphenyl methane two is different
Cyanate is added in 250ml there-necked flask, is warming up to 80 DEG C of reaction 5h, after having reacted, is cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, and after reaction terminates, thing is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h.In course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A10:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, micropore dioxy
Silicon carbide particle mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore
Silicon dioxide aperture size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) 9 weight portions 1,4- butanediol (BDO) are added with 68 weight portion PPDIs
To in 250ml there-necked flask, it is warming up to 80 DEG C of reaction 5h, after having reacted, is cooled to room temperature, product is transferred to beaker
In, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats aforesaid operations three
Secondary it is ensured that in product unreacted hexamethylene diisocyanate clean up, by cleaning after 30 DEG C of vacuum of solid product
It is dried to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer.Instead, thing is cooled to 80 DEG C under vacuum, adds the PEG-600 after 60ml vaccum dewatering,
After stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts 5h at 80 DEG C, reacted
Cheng Zhong, reactant viscosity can increase, and can suitably add some solvent dioxane, by the solution that completes of reaction be poured slowly into from
Settle in sub- water, sucking filtration, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane copolymer;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A11:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, micropore dioxy
Silicon carbide particle mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 10000, micropore
Silicon dioxide aperture size is 1nm, and piperazinedione acid percent grafting is 2%)
Preparation method is as follows:(1) 9 weight portion diethylene glycols are added to 68 weight portion isophorone diisocyanate
In 250ml there-necked flask, it is warming up to 80 DEG C of reaction 5h, after having reacted, is cooled to room temperature, product is transferred in beaker,
Add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats aforesaid operations three times, really
Protect unreacted hexamethylene diisocyanate in product to clean up, 30 DEG C of solid product after cleaning is dried under vacuum to
Constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, and after reaction terminates, thing is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h.In course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.1 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion mesoporous silica
Granule, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, by mould
Have in the baking oven put into 100 DEG C and heat 2h, raise for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A12:Polylactic acid-the polyurethane copolymer of grafting piperazinedione acid and expanded PTFE granule, micropore dioxy
Silicon carbide particle mixes the compositionss obtaining, and (varicosity tetrafluoroethene granule pore size is 0.2 μm, and number-average molecular weight is 30000, micropore
Silicon dioxide aperture size is 1nm, and piperazinedione acid percent grafting is 2%, the quality of varicosity tetrafluoroethene and mesoporous silica
Than for 0.5:1)
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
It is added in 250ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is transferred to burning
In cup, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats aforesaid operations three
Secondary it is ensured that in product unreacted hexamethylene diisocyanate clean up, by cleaning after 30 DEG C of vacuum of solid product
It is dried to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h under the conditions of 90 DEG C, lowers the temperature after eliminating water
To room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add octoate catalyst
Stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, in 140 DEG C of conditions
Lower reaction 24h prepares prepolymer, and after reaction terminates, thing is cooled to 80 DEG C under vacuum, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h.In course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane, and the solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) polylactic acid-polyurethane copolymer is immersed the hydrogenperoxide steam generator of 2V 2vt% acetum and 2V 5wt%
In, it is slowly added to be dissolved in piperazinedione acid (0.05 weight portion) solution of 5ml methanol, after reaction completely, use 10wt%NaOH
It is in filter after neutrality that aqueous solution adjusts pH, washing soaking to trapped substance, sucking filtration, and products therefrom is dry in vacuum drying oven
Dry 48h, as piperazinedione acid polydactyl acid-polyurethane copolymer;
(4) add piperazinedione acid polydactyl acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid
In molten condition, add 0.05 weight portion expanded polytetrafluoroethylsealing granule, stir 0.5h, add 0.1 weight portion nanoporous silica
Silicon grain, is stirred for 1h, and solid is in molten condition vacuumizing and defoaming, pours the mixture of mix homogeneously in mould into immediately, will
Mould is put in 100 DEG C of baking oven and is heated 2h, raises for case temperature to 120 DEG C of recurring 2h, the demoulding, that is, obtain spherical rubber and hold
Device.
A13:Polyurethane
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI), it is added in 500ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, obtain base polyurethane prepolymer for use as;
(2) triethylene glycol (triethylene glycol is 3% with the mass ratio of performed polymer) is added in above-mentioned performed polymer, is warming up to
75 DEG C of reaction 2.5h;
(3) polymer in step (2) is warming up to 120 DEG C, solid is in molten condition vacuumizing and defoaming, will mix immediately all
Even mixture is poured in mould, mould is put into heating 2h in 100 DEG C of baking oven, raises for case temperature to 120 DEG C of recurring
2h, the demoulding, that is, obtain spherical rubber container.
A14:Polylactic acid-polyurethane copolymer
Preparation method is as follows:(1) by 9 weight portions 1,4- butanediol (BDO) and 68 weight portion hexamethylene diisocyanates
(HDI) it is added in 500ml there-necked flask, be warming up to 80 DEG C of reaction 5h, after having reacted, be cooled to room temperature, product is turned
Move on in beaker, add normal hexane cleaning, stir 5min with Glass rod, so that solid product is completely dispersed, sucking filtration, repeats above-mentioned
Operate three times it is ensured that unreacted hexamethylene diisocyanate cleans up in product, by the solid product 30 after cleaning
DEG C it is dried under vacuum to constant weight, stand-by with DMSO dissolving (every 100mL DMSO dissolves 20g HDI-BDO-HDI chain extender) after being dried;
(2) a certain amount of 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering 2h, eliminating water under the conditions of 90 DEG C
After be cooled to room temperature, then add 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, add catalysis
Agent stannous octoate (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation, 140
Under the conditions of DEG C, reaction 24h prepares prepolymer, and after the completion of reaction, prepolymer is cooled to 80 DEG C, after adding 60ml vaccum dewatering
PEG-600, after stirring, the dropwise DMSO solution of Deca HDI-BDO-HDI chain extender, after being added dropwise to complete, reacts at 80 DEG C
5h, in course of reaction, reactant viscosity can increase, and can suitably add some solvent dioxane.The solution that reaction is completed delays
Slowly pour sedimentation, sucking filtration in deionized water into, products therefrom is dried in vacuum drying oven 48h, as polylactic acid-polyurethane is common
Polymers;
(3) add polylactic acid-polyurethane copolymer in there-necked flask, be warming up to 120 DEG C, solid is in molten condition, uses
Steam mold molding obtains modified polyurethane composition.
A15:Polylactic acid
Preparation method is as follows:(1) 100ml PEG-600 is added in vacuum response bottle, vaccum dewatering under the conditions of 90 DEG C
2h, is cooled to room temperature after eliminating water, then adds 15 weight portion L- lactides and 13 parts by weight of caprolactone in vacuum response bottle, then plus
Enter octoate catalyst stannous (catalyst quality accounts for the 0.5% of reaction raw materials gross mass), will be airtight for vacuum response bottle after evacuation,
Under the conditions of 140 DEG C, reaction 24h prepares prepolymer.
(2) add polylactic acid prepolymer in there-necked flask, be warming up to 120 DEG C, solid is in molten condition, uses steam mold
Molding obtains spherical polylactic acid.
B1:Band
C1:Band stopple