CN109135303A - A kind of preparation method of nano-cellulose enhancing soybean oil base foamed plastics - Google Patents
A kind of preparation method of nano-cellulose enhancing soybean oil base foamed plastics Download PDFInfo
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- CN109135303A CN109135303A CN201810962874.3A CN201810962874A CN109135303A CN 109135303 A CN109135303 A CN 109135303A CN 201810962874 A CN201810962874 A CN 201810962874A CN 109135303 A CN109135303 A CN 109135303A
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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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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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
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
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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
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
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- Health & Medical Sciences (AREA)
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a kind of preparation methods of nano-cellulose enhancing soybean oil base foamed plastics, and this method includes following operating procedure: (1) preparing the nano-cellulose suspension that mass concentration is 0.5%~4%；It is 1%~10% that sodium bicarbonate powder to its mass concentration is added into the nano-cellulose suspension, and magnetic agitation 1h, is prepared water phase at room temperature；(2) by epoxy soybean oil acrylate: amino silane: benzoyl peroxide=1:0.1~0.5:0.004~0.01 mixes, at room temperature magnetic agitation 10min, and oily phase is prepared；(3) in mass ratio it is that 1:1~5:1 progress high-speed stirred is mixed with water phase by oily phase, soybean oil base expanding foam solution is prepared；(4) soybean oil base expanding foam solution is poured into mold and heats i.e. expandable and is formed by curing foamed plastics.The method of the present invention simple process environmental protection, the technique for adding nano-cellulose facilitate the foam stability that foams and enhance, and obtained soybean oil base foamed plastics excellent combination property can be applied to the fields such as heat-insulated padded coaming.
Description
Technical field
The invention belongs to the preparation technical fields of foamed plastics, and in particular to a kind of nano-cellulose enhancing soybean oil base bubble
The preparation method of foam plastics.
Background technique
Foamed plastics has as damping, buffering, heat-insulation and heat-preservation, acoustic material in fields such as packed and transported, building and furniture
It is widely applied.Traditional foamed plastics is mainly using petroleum derivatives such as phenolic resin, unsaturated-resin, epoxy resin as raw material
It is prepared.The problems such as this type of foam is difficult to natural degradation there are non-renewable, waste is brought serious negative to environment
Load.For this purpose, preparing biodegradable foamed plastics using renewable resource as raw material and being of great significance.
Soybean oil abundance, lower-price characteristic are preparing biodegradable high molecular material just using it as raw material
It has attracted increasing attention.Epoxy soybean oil acrylate (AESO) is a kind of derivative of crude soya bean oil, has price
It is cheap, hydrophobic film-forming is functional, many excellent performances such as environmental-friendly, in coating, biodegradable foamed and composite material etc.
Field shows great development potentiality.
Currently, it is many using the report that epoxy soybean oil acrylate foaming prepares polymeric foam plastics, such as will
AESO and diluent are styrene copolymerized and foam and form foamed plastics (Chinese Plastics, 2006,20 (5)), by maleic anhydride-propylene
Sour modified epoxy soybean oil resin prepares the (polymer sciences such as environmentally friendly foamed plastics by radical copolymerization with styrene
Report, 2014 (4): 540-550).However, preparing soybean oil base expanding foam solution using particle emulsion process, then carries out foaming preparation and receive
There is not been reported for rice cellulose enhancing soybean oil base foamed plastics.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of systems of nano-cellulose enhancing soybean oil base foamed plastics
Preparation Method, this method facilitate the foam stability that foams and enhance using the technique of addition nano-cellulose, can make foam plastic
The mechanical property of material further improves, and obtained foamed plastics have both nano-cellulose good characteristic and AESO it is hydrophobic
Reactivity worth.
The present invention solves above-mentioned technical problem with following technical solution:
A kind of preparation method of nano-cellulose enhancing soybean oil base foamed plastics of the present invention, including following operating procedure:
(1) prepared by water phase: nano-cellulose being add to deionized water, using high speed disperser in 8000rpm revolving speed
Lower dispersion 5min is configured to the nano-cellulose suspension that mass concentration is 0.5%~4%；To the nano-cellulose suspension
Middle addition sodium bicarbonate powder to its mass concentration is 1%~10%, at room temperature magnetic agitation 1h, is uniformly mixed, is prepared
Water phase；
(2) oil is mutually prepared: in mass ratio by epoxy soybean oil acrylate, amino silane and benzoyl peroxide are as follows: ring
Oxygen soybean oil acrylate AESO: amino silane: benzoyl peroxide=1:0.1~0.5:0.004~0.01, at room temperature magnetic force
10min is stirred, oily phase is prepared；
(3) preparation of soybean oil base expanding foam solution: by the oil of step (2) mutually with the water phase of step (1) in mass ratio are as follows: oil
Phase: water phase=1:1~5:1 mixing, and mixing, stirring rate 5000r/ are stirred using high-speed emulsifying machine at room temperature
Min~15000r/min, mixing time are 5min~10min, and soybean oil base expanding foam solution is prepared；
(4) soybean oil base expanding foam solution made from step (3) is poured into mold, 30~60min is heated at 80~110 DEG C
It is i.e. expandable and be formed by curing foamed plastics.
In step (1), the nano-cellulose by bleached softwood wood-fibred, bleaching broad-leaved wood fiber, bleaching sugarcane fiber,
Bleaching bamboo fibre or cotton fiber use mechanical milling method, high pressure homogenization method or chemical oxidization method that diameter 2-20nm, length is prepared
The nano-cellulose of 0.1-100 μm of degree.
In step (2), the amino silane includes aminopropyl triethoxysilane, aminopropyl trimethoxysilane.
Compared with prior art, the invention has the following advantages that
1) preparation process of the present invention is simple and environmentally-friendly, inexpensive and practical, and the technique for adding nano-cellulose facilitates
It foams and enhances foam stability, the mechanical property of foamed plastics can be made further to improve, and advantageously reduce cost, mention
High foam biological degradability.
2) nano-cellulose that the method for the present invention obtains enhances soybean oil base foamed plastics, has both the excellent of nano-cellulose
Characteristic and AESO hydrophobic reactant performance can form foamed plastics, obtained soybean by foamed solidification under the conditions of relatively mild
Oil-based foam plastics excellent combination property, can be applied to the fields such as amortizing packaging material and thermal and sound insulating materials.
Detailed description of the invention
Fig. 1 is the SEM microscope figure that the nano-cellulose that embodiment 1 is prepared enhances soybean oil base foamed plastics.
Specific embodiment
Following instance is for better illustrating the present invention, but protection scope of the present invention is not limited to following instance:
Embodiment 1
Using bleach sugarcane fiber as raw material using mechanical milling method prepare 2~20nm of diameter, 0.1~100 μm of length receive
Rice cellulose；Nano-cellulose is add to deionized water, 5min is dispersed under 8000rpm revolving speed using high speed disperser,
It is configured to the nano-cellulose suspension that mass concentration is 3%；Sodium bicarbonate powder is added into the nano-cellulose suspension
It is 5% to its mass concentration, magnetic agitation 1h, is uniformly mixed, water phase is prepared at room temperature；By epoxy soybean oil acrylate
AESO, amino silane and benzoyl peroxide are in mass ratio are as follows: epoxy soybean oil acrylate AESO: aminopropyl trimethoxy silicon
Alkane: benzoyl peroxide=1:0.2:0.004 mix, at room temperature magnetic agitation 10min, and oily phase is prepared；It will be oily
It is mutually mixed with water phase according to mass ratio for 1:1, mixing is stirred using high-speed emulsifying machine at room temperature, stirring rate is
Soybean oil base expanding foam solution is prepared in 8000r/min, mixing time 8min；Soybean oil base expanding foam solution is poured into mold, in
40min, that is, expandable is heated at 90 DEG C and is formed by curing foamed plastics.
The density for the nano-cellulose enhancing soybean oil base foamed plastics that this example is prepared is 0.12g/cm3, compression
Intensity is 574kPa, and weight-loss ratio is 20.5% after soil buries 90 days.
Embodiment 2
Using cotton linter microcrystalline cellulose as raw material using high pressure homogenization method prepare 2~20nm of diameter, 0.1~1 μm of length receive
Rice cellulose；Nano-cellulose is add to deionized water, 5min is dispersed under 8000rpm revolving speed using high speed disperser,
It is configured to the nano-cellulose suspension that mass concentration is 0.5%；Sodium hydrogen carbonate powder is added into the nano-cellulose suspension
End to its mass concentration is 10%, at room temperature magnetic agitation 1h, is uniformly mixed, water phase is prepared；By epoxidized soybean oil propylene
Acid esters AESO, amino silane and benzoyl peroxide are in mass ratio are as follows: epoxy soybean oil acrylate AESO: three ethoxy of aminopropyl
Base silane: benzoyl peroxide=1:0.1:0.01 mix, at room temperature magnetic agitation 10min, and oily phase is prepared；It will
It is oily mutually to be mixed with water phase according to mass ratio for 2:1, mixing, stirring rate are stirred using high-speed emulsifying machine at room temperature
For 5000r/min, mixing time 10min, soybean oil base expanding foam solution is prepared；Soybean oil base expanding foam solution is poured into mold
In, 30min, that is, expandable is heated at 110 DEG C and is formed by curing foamed plastics.
The density for the nano-cellulose enhancing soybean oil base foamed plastics that this example is prepared is 0.19g/cm3, compression
Intensity is 1074kPa, and weight-loss ratio is 19.9% after soil buries 90 days.
Embodiment 3
2~20nm of diameter, 0.1~100 μm of length are prepared using chemical oxidization method as raw material to bleach broad-leaved wood fiber
Nano-cellulose；Nano-cellulose is add to deionized water, is dispersed under 8000rpm revolving speed using high speed disperser
5min is configured to the nano-cellulose suspension that mass concentration is 1.5%；Bicarbonate is added into the nano-cellulose suspension
Sodium powder end to its mass concentration is 1%, at room temperature magnetic agitation 1h, is uniformly mixed, water phase is prepared；By epoxidized soybean oil third
Olefin(e) acid ester AESO, amino silane and benzoyl peroxide are in mass ratio are as follows: epoxy soybean oil acrylate AESO: aminopropyl front three
Oxysilane: benzoyl peroxide=1:0.3:0.008 mix, and magnetic agitation 10min, is prepared oil at room temperature
Phase；It is mutually mixed oily with water phase according to mass ratio for 5:1, mixing is stirred using high-speed emulsifying machine at room temperature, is stirred
Mixing rate is 10000r/min, mixing time 5min, and soybean oil base expanding foam solution is prepared；Soybean oil base expanding foam solution is poured into
In mold, 60min, that is, expandable is heated at 80 DEG C and is formed by curing foamed plastics.
The density for the nano-cellulose enhancing soybean oil base foamed plastics that this example is prepared is 0.33g/cm3, compression
Intensity is 1943kPa, and weight-loss ratio is 17.6% after soil buries 90 days.
Embodiment 4
2~20nm of diameter, 0.1~100 μm of length are prepared using mechanical milling method using bleached softwood wood-fibred as raw material
Nano-cellulose；Nano-cellulose is add to deionized water, is dispersed under 8000rpm revolving speed using high speed disperser
5min is configured to the nano-cellulose suspension that mass concentration is 4%；Sodium bicarbonate is added into the nano-cellulose suspension
Powder to its mass concentration is 5%, at room temperature magnetic agitation 1h, is uniformly mixed, water phase is prepared；By epoxidized soybean oil propylene
Acid esters AESO, amino silane and benzoyl peroxide are in mass ratio are as follows: epoxy soybean oil acrylate AESO: three ethoxy of aminopropyl
Base silane: benzoyl peroxide=1:0.5:0.01 mix, at room temperature magnetic agitation 10min, and oily phase is prepared；It will
It is oily mutually to be mixed with water phase according to mass ratio for 3:1, mixing, stirring rate are stirred using high-speed emulsifying machine at room temperature
For 15000r/min, mixing time 5min, soybean oil base expanding foam solution is prepared；Soybean oil base expanding foam solution is poured into mold
In, 30min, that is, expandable is heated at 100 DEG C and is formed by curing foamed plastics.
The density for the nano-cellulose enhancing soybean oil base foamed plastics that this example is prepared is 0.25g/cm3, compression
Intensity is 1336kPa, and weight-loss ratio is 11.8% after soil buries 90 days.
Claims (3)
1. a kind of preparation method of nano-cellulose enhancing soybean oil base foamed plastics, which is characterized in that it includes following operation
Step:
(1) prepared by water phase: nano-cellulose being add to deionized water, using high speed disperser in lower point of 8000rpm revolving speed
5min is dissipated, the nano-cellulose suspension that mass concentration is 0.5%~4% is configured to；Add into the nano-cellulose suspension
Entering sodium bicarbonate powder to its mass concentration is 1%~10%, at room temperature magnetic agitation 1h, is uniformly mixed, water phase is prepared；
(2) oil is mutually prepared: in mass ratio by epoxy soybean oil acrylate, amino silane and benzoyl peroxide are as follows: epoxy is big
Soya bean oil acrylate: amino silane: benzoyl peroxide=1:0.1~0.5:0.004~0.01 ratio mixes, at room temperature magnetic
Power stirs 10min, and oily phase is prepared；
(3) preparation of soybean oil base expanding foam solution: by the oil of step (2) mutually with the water phase of step (1) in mass ratio are as follows: oily phase: water
Phase=1:1~5:1 mixing, and mixing is stirred using high-speed emulsifying machine at room temperature, stirring rate for 5000r/min~
15000r/min, mixing time are 5min~10min, and soybean oil base expanding foam solution is prepared；
(4) soybean oil base expanding foam solution made from step (3) is poured into mold, 30~60min is heated at 80~110 DEG C
It foams and is formed by curing foamed plastics.
2. the preparation method of nano-cellulose enhancing soybean oil base foamed plastics according to claim 1, which is characterized in that step
Suddenly in (1), the nano-cellulose is adopted by bleached softwood wood-fibred, bleaching broad-leaved wood fiber, bleaching sugarcane fiber or cotton fiber
The nanofiber of diameter 2-20nm, 0.1-100 μm of length are prepared with mechanical milling method, high pressure homogenization method or chemical oxidization method
Element.
3. the preparation method of nano-cellulose enhancing soybean oil base foamed plastics according to claim 1, which is characterized in that step
Suddenly in (2), the amino silane includes aminopropyl triethoxysilane, aminopropyl trimethoxysilane.
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| CN201810962874.3A CN109135303B (en) | 2018-08-22 | 2018-08-22 | Preparation method of nano-cellulose reinforced soybean oil-based foam plastic |
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| CN201810962874.3A CN109135303B (en) | 2018-08-22 | 2018-08-22 | Preparation method of nano-cellulose reinforced soybean oil-based foam plastic |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511575A (en) * | 2019-07-26 | 2019-11-29 | 广西大学 | A kind of preparation method of Environmentally-frieantibacterial antibacterial nano-cellulose compound soybean oil based polymers foam |
| CN112337192A (en) * | 2020-09-16 | 2021-02-09 | 齐鲁工业大学 | Efficient filtering material containing foaming coating and preparation method and application thereof |
| KR102620840B1 (en) * | 2023-03-17 | 2024-01-04 | 정대영 | Method of preparation of polymer compositions for insulation using recycled PET and modified isocyanates, and system thereof |
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