CN109081942A - A kind of antibacterial hydrophobic sponge - Google Patents
A kind of antibacterial hydrophobic sponge Download PDFInfo
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- CN109081942A CN109081942A CN201810949558.2A CN201810949558A CN109081942A CN 109081942 A CN109081942 A CN 109081942A CN 201810949558 A CN201810949558 A CN 201810949558A CN 109081942 A CN109081942 A CN 109081942A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/40—Impregnation
- C08J9/42—Impregnation with macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
Abstract
The present invention relates to sponge fields, more particularly to a kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepares the substance that raw material includes following parts by weight: 100 parts by weight of BC gel sponge body, 11~20 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, 5~8 parts by weight of polyadipate/butylene terephthalate, 5~10 parts by weight of chloroform, flexible 2.5~4 parts by weight of modifying agent, main 4~8 parts by weight of reinforcing agent, assist 3~6 parts by weight of reinforcing agent, 2.15~3.5 parts by weight of vulcanizing agent and auxiliary 0.35~0.55 parts by weight of vulcanizing agent.Antibacterial hydrophobic sponge of the present invention has good hydrophobic and waterproof performance, rapid draing can be realized after sponge sucks in water, additionally there is good antibiotic and sterilizing effect, can realize to a certain extent to common pathogen quickly kill except and it is mould proof, and there is good mechanical property, there is extremely outstanding performance especially in terms of elasticity modulus and compression set value two.
Description
Technical field
The present invention relates to sponge field more particularly to a kind of antibacterial hydrophobic sponges.
Background technique
Sponge is a kind of extremely common porous material, has good water imbibition, partially has good elasticity, deformation
Restorative etc. performance can be used in clean article or the seat cushion for producing some comfortable softnesses.
The common sponge of people is made of wood cellulose fibers or foamed plastic polymer.In addition, also having by spongia
Manufactured natural sponge, most of natural sponges are used for clean body or drawing.In addition, there are also close made of three classes other materials
At sponge, respectively low-density polyethers (not water-absorbing sponge), polyvinyl alcohol (high-absorbent material, without obvious stomata) and polyester.
For at present, the manufacturing cost of sponge is positively correlated with sponge density in the market, and density is higher, and cost is also higher, but
The physical property of low-density sponge is often not so good as high-density sponge, especially as in terms of use, thus seek
A kind of low-density of mechanical property standard needed for low-density but has excellent mechanical performances that can meet seat cushion sponge in the world is high-elastic
Property sponge is a great development direction.The pollution produced during the preparation process of sponge is larger at present simultaneously, and sponge is mostly artificial high poly-
Object is difficult to degrade, and foaming agent causes damages to people in foaming process, pollute the environment and one urgently to be resolved is asked
Topic.
Patent Office of the People's Republic of China disclosed the hair of an a kind of low-density high-mechanic sponge and manufacture craft on 2 15th, 2017
Bright patent application document, application publication number CN106397711A, the patent of invention pass through the expansion density for reducing sponge, so that
Required production material is greatly decreased when producing the sponge of same volume, reduces production cost, has on the other hand selected polyethers
Polyalcohol and polymer polyatomic alcohol improve the hardness of sponge, avoid and cause asking for physical property decline because density is too low
Topic.But it there are still the pollution produced during the preparation process of sponge is larger, artificial high polymer is difficult to degrade, and foaming agent was foaming
The problem of causing damages, polluting the environment to people in journey.
But the cavernous body used as seat cushion etc. but but exists in the performances such as water imbibition and gas permeability, elasticity
Certain paradox usually has good water absorbency and water retentivity energy, as seat cushion due to the high porosity of sponge structure
When use its water suction after but there is a problem of being not easy it is dry, accidentally overturn on cushion cup etc. make seat cushion water suction after need compared with
It completely dry can go for a long time, and the bacterium extremely easy to breed after sponge is moist.Therefore, it develops a kind of with good
Gas permeability and elasticity, the seat cushion sponge that but simultaneously there is anti-microbial property but to have hydrophobic performance are very important.
Summary of the invention
It is but dry in the presence of being not easy after its water suction when to solve the problems, such as that existing sponge uses as seat cushion, accidentally in seat cushion
On overturn after cup etc. makes seat cushion absorb water the long period needed completely dry can to go, and be extremely easy after sponge is moist
The problem of breeding bacterium, the present invention provides a kind of antibacterial hydrophobic sponge, with good hydrophobic waterproof energy, enables to inhale
Sponge rapid draing after water, and there is the ability killed except common bacteria.
To achieve the above object, the invention adopts the following technical scheme:
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 11~20 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA)
5~8 parts by weight of fourth diester, 5~10 parts by weight of chloroform, flexible 2.5~4 parts by weight of modifying agent, main 4~8 parts by weight of reinforcing agent are auxiliary
Help 3~6 parts by weight of reinforcing agent, 2.15~3.5 parts by weight of vulcanizing agent and auxiliary 0.35~0.55 parts by weight of vulcanizing agent.
Preferably, the antibacterial hydrophobic sponge prepares the substance that raw material includes following parts by weight: BC gel sponge
100 parts by weight of body, 12~15.5 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth
6.2~6.8 parts by weight of diester, 7~7.5 parts by weight of chloroform, flexible 2.95~3.2 parts by weight of modifying agent, main reinforcing agent 4.55~
6.2 parts by weight, auxiliary 4.2~5.2 parts by weight of reinforcing agent, 2.85~3.15 parts by weight of vulcanizing agent and auxiliary vulcanizing agent 0.45~
0.5 parts by weight.
Preferably, the antibacterial hydrophobic sponge prepares the substance that raw material includes following parts by weight: BC gel sponge
100 parts by weight of body, 13.5 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/butylene terephthalate
6.55 parts by weight, 7.5 parts by weight of chloroform, flexible 3.15 parts by weight of modifying agent, main 4.95 parts by weight of reinforcing agent assist reinforcing agent
4.5 parts by weight, 3 parts by weight of vulcanizing agent and auxiliary 0.5 parts by weight of vulcanizing agent.
BC is the abbreviation of bacteria cellulose (Bacterial cellulose), is also by acetic acid Pseudomonas
(Acetobacter), Agrobacterium (Agrobacterium), rhizobium (Rhizobium) and Sarcina
(Sarcina) general designation of the cellulose of certain Microbe synthesis in such as.Bacteria cellulose exists in the form of pure cellulose, tool
Have with structure as the cellulose family of plant or seaweed generation, there is fine and close three-dimensional net structure, fibre diameter 30~
It is hydroxyl rich in chemical structure molecular formula between the 1/10~1/100 of plant fiber cellulose fiber between 100nm
Group, intramolecular and intermolecular and there are a large amount of hydrogen bonds, and in its molecule glucopyranose adjacent six carbon atoms in steady
Fixed chair structure, stability is splendid, is provided simultaneously with high elastic property.Therefore, bacteria cellulose has several unique
Physicochemical properties: low-density, high-purity, high-crystallinity, hyperfine Specific surface area, high moisture holding capacity, high elastic modulus,
The Modulatory character of good biocompatibility and biosynthesis.
Therefore cavernous body is prepared using bacteria cellulose aquagel block as basis material, prepared cavernous body may make to have
Extremely outstanding mechanical property and extremely stable chemical property, and biocompatibility is extremely outstanding, compared to general sponge
The artificial ingredients of body, harm to the human body is almost nil, and can be explained under field conditions (factors), extremely friendly to environment,
It is a kind of environmentally protective basis material.
It will be apparent that bacteria cellulose sponges body due to its high water retention property there is a problem that being not easy it is dry.Thus it is added
3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters and polyadipate/butylene terephthalate improve it.3- hydroxyl fourth
Acid-co-4- hydroxybutyric acid copolyesters is also known as P3/4HB, and polyadipate/butylene terephthalate is commonly called as PBAT, utilizes 3- hydroxyl
Base butyric acid -4 hydroxybutyric acid copolyesters and polyadipate/butylene terephthalate are to BC gel prepared by bacteria cellulose
Cavernous body is improved, can make the two the surface of BC gel sponge body macro surface and pore structure coat one layer it is very thin
Hydrophobic membrane, the binding force for reducing bacteria cellulose and hydrone even realizes barrier completely, so that prepared by bacteria cellulose
The water retention property of BC gel sponge body is greatly reduced, and then has good hydrophobic and waterproof performance.
In addition, chloroform, which is added, can greatly strengthen the anti-microbial property of BC gel sponge body.Chloroform is being commonly called as chloroform,
It is a kind of colourless transparent liquid, it is non-ignitable volatile.Chloroform mainly plays chlorinating agent in the present invention, is a kind of with pole
The organic matter of high chlorinity, and chlorine is easily separated under certain condition, and the chlorine after separation can generate chlorination to BC gel sponge body
Effect, improve BC gel sponge body chlorinty, risings of chlorinty can increase substantially the antibacterial of cavernous body, sterilization and prevent
Mould ability, and the chlorine due to generating after its chlorination exists mostly in the form of chloride ion, and Cl+Biology can be transferred directly to such as
On the receiver of mould, germ etc., to contact bacterium directly be killed, therefore the BC gel sponge body after chlorination has very
Potent sterilization, antibacterial and mould proof ability.
Preferably, the preparation method of the BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and auxiliary blowing agent are added into the resulting gel solution of step 2), with 800~1100r/
The revolving speed of min quickly stir to its it is a large amount of foam, then with the revolving speed of 150~220r/min carry out slow foam stabilizing stirring 25~
35min is then added ethyl alcohol to its precipitation and forms BC gel sponge body.
Preferably, the auxiliary blowing agent is sodium sulfate of polyethenoxy ether of fatty alcohol.
Lauryl sodium sulfate is a kind of anionic surfactant, belongs to surfactant-based foaming agent, can be effective
Reduce liquid surface tension simultaneously liquid film surface electric double layer arrange and surround air, formed bubble, then by single isolated bubbles into
And foam group is formed, there is extremely strong foaming capacity, and biological degradability degree can degrade greatly 90% or more in recycling
And it avoids pollution；Sodium sulfate of polyethenoxy ether of fatty alcohol also known as be ethoxylated alkyl sulfate, fatty alcohol-ether sodium sulfate, equally
It is a kind of anionic surfactant, it is very mild to human body and at 50 DEG C or more or i.e. decomposable under mildly acidic conditions,
It hydrolyzes, generates nuisanceless substance, thus can also dramatically avoid pollution environment in recycling, and foam in auxiliary
Under the synergistic effect of agent sodium sulfate of polyethenoxy ether of fatty alcohol, the foaming effect of lauryl sodium sulfate is more excellent, the gas generated
Bubble is finer and closely woven, is conducive to the mechanical property for improving material.More outstanding foaming can be played under the synergistic effect of the two
Effect.
Preferably, the flexible modifying agent is any one in dibutyl phthalate or dioctyl phthalate
Kind.
Dibutyl phthalate and dioctyl phthalate can play good modified effect, can mainly increase
Secondly the flexibility of composite material can also to improve matrix gelatinisation ability and stability, resistance to deflection, caking property
With the performances such as waterproofness.
Preferably, the main reinforcing agent is polyvinyl alcohol.
Preferably, the auxiliary reinforcing agent is polyethylene glycol.
Polyvinyl alcohol is a kind of high molecular material that safety is extremely outstanding, since it is with environmental-friendly and high biofacies
The characteristics of capacitive, therefore have application in biomaterial and field of tissue engineering technology, and it is water-soluble good, the knot with height
Crystalline substance, chemical stability, thermal stability and mechanical strength can greatly enhance base with the synergistic effect of bacteria cellulose matrix
The mechanical property of body material can make further raising being subject to polyethylene glycol cooperation to mechanical property.
Preferably, the vulcanizing agent is dibenzyl dithio amino methanol zinc.
Preferably, the auxiliary vulcanizing agent is 2-steryl benzothiazole.
Dibenzyl dithio amino methanol zinc and 2-steryl benzothiazole belong to vulcanizing agent, wherein dibenzyl dithio
Amino methanol zinc is as a kind of conventional curing agent, and 2-steryl benzothiazole is a kind of sour sulfur agent, and curing temperature is lower, tool
There is medium curingprocess rate, itself has preferable sulfurization, can play good facilitation during the preparation process, and two
Benzyl dithiocarbamates methanol zinc can strengthen its vulcanization effect and sulphur significantly under the synergistic effect of 2-steryl benzothiazole
Change efficiency.
The beneficial effects of the present invention are:
1) antibacterial hydrophobic sponge of the present invention has good hydrophobic and waterproof performance, and fast rapid-curing cutback can be realized after sponge sucks in water
It is dry；
2) antibacterial hydrophobic sponge of the present invention has good antibiotic and sterilizing effect, can realize to a certain extent to common causative
Bacterium quickly kill except and it is mould proof；
3) antibacterial hydrophobic sponge of the present invention has good mechanical property, especially in two side of elasticity modulus and compression set value
Face has extremely outstanding performance.
Specific embodiment
Further clear detailed description explanation is made to the present invention below in conjunction with specific embodiment.
Embodiment 1
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 11 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth two
5 parts by weight of ester, 5 parts by weight of chloroform, flexible 2.5 parts by weight of modifying agent, 4 parts by weight of polyvinyl alcohol, 3 parts by weight of polyethylene glycol, two
2.15 parts by weight of benzyl dithiocarbamates methanol zinc and 0.35 parts by weight of 2-steryl benzothiazole；
Wherein the preparation method of BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and sodium sulfate of polyethenoxy ether of fatty alcohol mixture that will be mixed with mass ratio 9.5:0.5 ratio
It being added into the resulting gel solution of step 2), mixture is 2.5:100 with mass ratio used in BC hydrogel used in step a), with
The revolving speed of 800r/min is quickly stirred to its a large amount of foaming, is then carried out slow foam stabilizing with the revolving speed of 150r/min and is stirred 25min,
Ethyl alcohol to its precipitation is then added and forms BC gel sponge body.
Embodiment 2
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 20 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth two
8 parts by weight of ester, 10 parts by weight of chloroform, flexible 4 parts by weight of modifying agent, 8 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene glycol, dibenzyl
3.5 parts by weight of base dithiocarbamates methanol zinc and 0.55 parts by weight of 2-steryl benzothiazole；
Wherein the preparation method of BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and sodium sulfate of polyethenoxy ether of fatty alcohol mixture that will be mixed with mass ratio 9.5:0.5 ratio
It being added into the resulting gel solution of step 2), mixture is 2.5:100 with mass ratio used in BC hydrogel used in step a), with
The revolving speed of 1100r/min is quickly stirred to its a large amount of foaming, then carries out slow foam stabilizing stirring with the revolving speed of 220r/min
35min is then added ethyl alcohol to its precipitation and forms BC gel sponge body.
Embodiment 3
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 12 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth two
6.2 parts by weight of ester, 7 amount part of chloroform, flexible 2.95 parts by weight of modifying agent, 4.55 parts by weight of polyvinyl alcohol, 4.2 weight of polyethylene glycol
Part, 2.85 parts by weight of dibenzyl dithio amino methanol zinc and 0.45 parts by weight of 2-steryl benzothiazole；
Wherein the preparation method of BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and sodium sulfate of polyethenoxy ether of fatty alcohol mixture that will be mixed with mass ratio 9.5:0.5 ratio
It being added into the resulting gel solution of step 2), mixture is 2.5:100 with mass ratio used in BC hydrogel used in step a), with
The revolving speed of 900r/min is quickly stirred to its a large amount of foaming, is then carried out slow foam stabilizing with the revolving speed of 200r/min and is stirred 30min,
Ethyl alcohol to its precipitation is then added and forms BC gel sponge body.
Embodiment 4
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 20 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth two
8 parts by weight of ester, 10 parts by weight of chloroform, flexible 4 parts by weight of modifying agent, 8 parts by weight of polyvinyl alcohol, 6 parts by weight of polyethylene glycol, dibenzyl
3.5 parts by weight of base dithiocarbamates methanol zinc and 0.55 parts by weight of 2-steryl benzothiazole；
Wherein the preparation method of BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and sodium sulfate of polyethenoxy ether of fatty alcohol mixture that will be mixed with mass ratio 9.5:0.5 ratio
It being added into the resulting gel solution of step 2), mixture is 2.5:100 with mass ratio used in BC hydrogel used in step a), with
The revolving speed of 1000r/min is quickly stirred to its a large amount of foaming, then carries out slow foam stabilizing stirring with the revolving speed of 180r/min
30min is then added ethyl alcohol to its precipitation and forms BC gel sponge body.
Embodiment 5
A kind of antibacterial hydrophobic sponge, the antibacterial hydrophobic sponge prepare the substance that raw material includes following parts by weight: BC gel
100 parts by weight of cavernous body, 13.5 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters, polyadipate/terephthalic acid (TPA) fourth
6.55 parts by weight of diester, 7.5 parts by weight of chloroform, flexible 3.15 parts by weight of modifying agent, 4.95 parts by weight of polyvinyl alcohol, polyethylene glycol
4.5 parts by weight, 3 parts by weight of dibenzyl dithio amino methanol zinc and 0.5 parts by weight of 2-steryl benzothiazole；
Wherein the preparation method of BC gel sponge body includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and sodium sulfate of polyethenoxy ether of fatty alcohol mixture that will be mixed with mass ratio 9.5:0.5 ratio
It being added into the resulting gel solution of step 2), mixture is 2.5:100 with mass ratio used in BC hydrogel used in step a), with
The revolving speed of 850r/min is quickly stirred to its a large amount of foaming, is then carried out slow foam stabilizing with the revolving speed of 180r/min and is stirred 30min,
Ethyl alcohol to its precipitation is then added and forms BC gel sponge body.
The antibacterial hydrophobic sponge of Examples 1 to 5 is detected, partial detection is as shown in the table.
As seen from the above table, antibacterial hydrophobic sponge of the present invention has good antibacterial hydrophobic effect.And there is excellent mechanics
Performance.
Claims (10)
1. a kind of antibacterial hydrophobic sponge, which is characterized in that the raw material for preparing of the antibacterial hydrophobic sponge includes following parts by weight
Substance: 100 parts by weight of BC gel sponge body, 11~20 parts by weight of 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters gather oneself two
5~8 parts by weight of acid/butylene terephthalate, 5~10 parts by weight of chloroform, flexible 2.5~4 parts by weight of modifying agent, main reinforcing agent
4~8 parts by weight assist 3~6 parts by weight of reinforcing agent, 2.15~3.5 parts by weight of vulcanizing agent and auxiliary 0.35~0.55 weight of vulcanizing agent
Measure part.
2. a kind of antibacterial hydrophobic sponge according to claim 1, which is characterized in that the preparation of the antibacterial hydrophobic sponge is former
Material includes the substance of following parts by weight: 100 parts by weight of BC gel sponge body, 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters
12~15.5 parts by weight, 6.2~6.8 parts by weight of polyadipate/butylene terephthalate, 7~7.5 parts by weight of chloroform are flexible
2.95~3.2 parts by weight of modifying agent, main 4.55~6.2 parts by weight of reinforcing agent assist 4.2~5.2 parts by weight of reinforcing agent, vulcanizing agent
2.85~3.15 parts by weight and auxiliary 0.45~0.5 parts by weight of vulcanizing agent.
3. a kind of antibacterial hydrophobic sponge according to claim 1, which is characterized in that the preparation of the antibacterial hydrophobic sponge is former
Material includes the substance of following parts by weight: 100 parts by weight of BC gel sponge body, 3-hydroxybutyrate-co-4 hydroxybutyric acid copolyesters
13.5 parts by weight, 6.55 parts by weight of polyadipate/butylene terephthalate, 7.5 parts by weight of chloroform, flexible 3.15 weight of modifying agent
Part is measured, main 4.95 parts by weight of reinforcing agent assist 4.5 parts by weight of reinforcing agent, 3 parts by weight of vulcanizing agent and auxiliary 0.5 weight of vulcanizing agent
Part.
4. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the BC gel sponge body
Preparation method includes following preparation step:
A) BC hydrogel is placed in the ethanol solution of the ethylenediamine of 12wt% and soak molten processing, BC hydrogel used and second
The mass ratio of the ethanol solution of diamines is 1:100, obtains gel solution；
B) lauryl sodium sulfate and auxiliary blowing agent are added into the resulting gel solution of step 2), with 800~1100r/
The revolving speed of min quickly stir to its it is a large amount of foam, then with the revolving speed of 150~220r/min carry out slow foam stabilizing stirring 25~
35min is then added ethyl alcohol to its precipitation and forms BC gel sponge body.
5. a kind of antibacterial hydrophobic sponge according to claim 4, which is characterized in that the auxiliary blowing agent is poly alkyl alcohol
Ethylene oxide ether sodium sulfate.
6. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the flexible modifying agent is neighbour
Any one in dibatyl phithalate or dioctyl phthalate.
7. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the main reinforcing agent is poly- second
Enol.
8. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the auxiliary reinforcing agent is poly-
Ethylene glycol.
9. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the vulcanizing agent is dibenzyl
Dithiocarbamates methanol zinc.
10. a kind of antibacterial hydrophobic sponge according to claim 1 or 2 or 3, which is characterized in that the auxiliary vulcanizing agent is
2-steryl benzothiazole.
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