CN107266927A - High degradable type high polymer material of a kind of mechanical performance and preparation method thereof - Google Patents
High degradable type high polymer material of a kind of mechanical performance and preparation method thereof Download PDFInfo
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- CN107266927A CN107266927A CN201710314438.0A CN201710314438A CN107266927A CN 107266927 A CN107266927 A CN 107266927A CN 201710314438 A CN201710314438 A CN 201710314438A CN 107266927 A CN107266927 A CN 107266927A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of high degradable type high polymer material of mechanical performance, by weight, including following raw material：40 60 parts of modified natural polymer material；Epoxide modified 10 16 parts of silicone resin；12 17 parts of polyvinyl alcohol；36 parts of wood fibre；27 parts of xylan；5 10 parts of zirconium diboride；13 18 parts of suberic acid；38 parts of titanate coupling agent；0.5 1.5 parts of titanium dioxide；5 10 parts of urea.The beneficial effects of the invention are as follows the shortcoming for overcoming common degradation material, improve tensile strength, the elongation at break of high polymer material, have the advantages that degradation time is short simultaneously, when wherein weighing the ㎏ of modified natural polymer material 50, the ㎏ of epoxide modified silicone resin 13, the ㎏ of polyvinyl alcohol 15, the ㎏ of wood fibre 4.5, the ㎏ of xylan 4, the ㎏ of zirconium diboride 8, the ㎏ of suberic acid 16, the ㎏ of titanate coupling agent 5, the ㎏ of titanium dioxide 0.75,7 ㎏ of urea, its corresponding properties is significantly higher than the performance of other bioabsorbable polymer materials.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to a kind of high degradable type macromolecule material of mechanical performance
Material and preparation method thereof.
Background technology
High polymer material is also referred to as polymeric material, is, using high-molecular compound as matrix, then (to help equipped with other additives
Agent) material that is constituted.High polymer material is by sources divided into natural macromolecular material and synthesis high polymer material.Natural polymer
It is the polymer substance being present in animal, plant and organism, natural fiber, natural resin, natural rubber, animal can be divided into
Glue etc..Synthesis high polymer material is primarily referred to as plastics, synthetic rubber and the big synthetic material of synthetic fibers three, additionally including gluing
Agent, coating and various functions high polymer material.Synthesis high polymer material have natural macromolecular material unexistent or compared with
For superior performance --- less density, higher mechanics, wearability, corrosion resistance, electrical insulating property etc..
High polymer material also needs to the function of possessing environment-friendly degradable on the basis of performance is met, only in this way
Pollution problem can thoroughly be solved.Current high polymer material is used widely, such as polybag, packaging bag, but its tensile strength
And elongation at break is than relatively low, and degradation time in its natural state is very long, therefore there is larger inconvenience.
The content of the invention
It is an object of the invention to provide high degradable type high polymer material of a kind of mechanical performance and preparation method thereof, with
The problem of solving to propose in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of high degradable type high polymer material of mechanical performance, by weight, including following raw material：
It is as further scheme of the invention：By weight, including following raw material：
It is as further scheme of the invention：By weight, including following raw material：
A kind of preparation method of the high degradable type high polymer material of mechanical performance, this method comprises the following steps：
(1) 40-60 parts of modified natural polymer material is weighed；Epoxide modified silicone resin 10-16 parts；Polyvinyl alcohol 12-
17 parts；3-6 parts of wood fibre；2-7 parts of xylan；5-10 parts of zirconium diboride；13-18 parts of suberic acid；Titanate coupling agent 3-8
Part；0.5-1.5 parts of titanium dioxide；5-10 parts of urea, is added in mixer and is stirred, and speed of agitator is 100rpm-120rpm,
Mixing time is that 40min-80min obtains compound；
(2) add mixture into double screw extruder, regulation pH value to 8.0-8.5, double screw extruder is divided into four
Individual operating temperature, the first operating temperature is 120-135 DEG C, and the second operating temperature is 140-180 DEG C, and the 3rd operating temperature is 150-
175 DEG C, the 4th operating temperature is 160-165 DEG C, and environmentally friendly degradable type high polymer material is obtained after extruding.
The beneficial effects of the invention are as follows the shortcoming for overcoming common degradation material, the stretching of high polymer material is improved
Intensity, elongation at break, while having the advantages that degradation time is short, wherein weighing the ㎏ of modified natural polymer material 50, epoxy
The ㎏ of modified silicone resin 13, the ㎏ of polyvinyl alcohol 15, the ㎏ of wood fibre 4.5, the ㎏ of xylan 4, the ㎏ of zirconium diboride 8, the ㎏ of suberic acid 16,
When the ㎏ of titanate coupling agent 5, the ㎏ of titanium dioxide 0.75,7 ㎏ of urea, its corresponding properties is significantly higher than other biological high
The performance of molecular material.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Embodiment 1：
(1) weigh the ㎏ of modified natural polymer material 40, it is the ㎏ of epoxide modified silicone resin 10, the ㎏ of polyvinyl alcohol 12, wooden
The ㎏ of fiber 3, the ㎏ of xylan 2, the ㎏ of zirconium diboride 5, the ㎏ of suberic acid 13, the ㎏ of titanate coupling agent 3, the ㎏ of titanium dioxide 0.5, the ㎏ of urea 5,
It is added in mixer and is stirred, speed of agitator is 100rpm, mixing time is that 40min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.0, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 95 DEG C, and the second operating temperature is 115 DEG C, the 3rd operating temperature is 130 DEG C, the 4th work temperature
Spend for 140 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Modified natural polymer material in the present invention is starch, starch derivatives, protein, cellulose, chitin, shell
One kind in glycan.
Embodiment 2：
(1) weigh the ㎏ of modified natural polymer material 60, it is the ㎏ of epoxide modified silicone resin 16, the ㎏ of polyvinyl alcohol 17, wooden
The ㎏ of fiber 6, the ㎏ of xylan 7, the ㎏ of zirconium diboride 10, the ㎏ of suberic acid 18, the ㎏ of titanate coupling agent 8, the ㎏ of titanium dioxide 1.5, urea 10
㎏, is added in mixer and is stirred, and speed of agitator is 120rpm, and mixing time is that 80min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.5, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 135 DEG C, and the second operating temperature is 180 DEG C, the 3rd operating temperature is 175 DEG C, the 4th work temperature
Spend for 165 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Embodiment 3：
(1) weigh the ㎏ of modified natural polymer material 45, it is the ㎏ of epoxide modified silicone resin 12, the ㎏ of polyvinyl alcohol 13, wooden
The ㎏ of fiber 4, the ㎏ of xylan 3, the ㎏ of zirconium diboride 7, the ㎏ of suberic acid 15, the ㎏ of titanate coupling agent 4, the ㎏ of titanium dioxide 0.5, the ㎏ of urea 6,
It is added in mixer and is stirred, speed of agitator is 100rpm, mixing time is that 40min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.0, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 120 DEG C, and the second operating temperature is 140 DEG C, the 3rd operating temperature is 150 DEG C, the 4th work temperature
Spend for 160 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Embodiment 4：
(1) weigh the ㎏ of modified natural polymer material 55, it is the ㎏ of epoxide modified silicone resin 14, the ㎏ of polyvinyl alcohol 16, wooden
The ㎏ of fiber 5, the ㎏ of xylan 6, the ㎏ of zirconium diboride 9, the ㎏ of suberic acid 17, the ㎏ of titanate coupling agent 6, the ㎏ of titanium dioxide 1, the ㎏ of urea 8, plus
Enter and be stirred into mixer, speed of agitator is 120rpm, mixing time is that 80min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.5, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 135 DEG C, and the second operating temperature is 180 DEG C, the 3rd operating temperature is 175 DEG C, the 4th work temperature
Spend for 165 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Embodiment 5：
(1) weigh the ㎏ of modified natural polymer material 50, it is the ㎏ of epoxide modified silicone resin 13, the ㎏ of polyvinyl alcohol 15, wooden
The ㎏ of fiber 4.5, the ㎏ of xylan 4, the ㎏ of zirconium diboride 8, the ㎏ of suberic acid 16, the ㎏ of titanate coupling agent 5, the ㎏ of titanium dioxide 0.75, urea 7
㎏, is added in mixer and is stirred, and speed of agitator is 110rpm, and mixing time is that 60min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.3, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 130 DEG C, and the second operating temperature is 160 DEG C, the 3rd operating temperature is 155 DEG C, the 4th work temperature
Spend for 163 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Comparative example 1：
(1) weigh the ㎏ of modified natural polymer material 40, it is the ㎏ of epoxide modified silicone resin 10, the ㎏ of polyvinyl alcohol 12, wooden
The ㎏ of fiber 3, the ㎏ of xylan 2, the ㎏ of zirconium diboride 5, the ㎏ of suberic acid 13, the ㎏ of titanate coupling agent 3, the ㎏ of titanium dioxide 0.5, the ㎏ of urea 5,
It is added in mixer and is stirred, speed of agitator is 100rpm, mixing time is that 40min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.0, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 120 DEG C, and the second operating temperature is 140 DEG C, the 3rd operating temperature is 150 DEG C, the 4th work temperature
Spend for 160 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
Comparative example 2：
(1) weigh the ㎏ of modified natural polymer material 60, it is the ㎏ of epoxide modified silicone resin 16, the ㎏ of polyvinyl alcohol 17, wooden
The ㎏ of fiber 6, the ㎏ of xylan 7, the ㎏ of zirconium diboride 10, the ㎏ of suberic acid 18, the ㎏ of titanate coupling agent 8, the ㎏ of titanium dioxide 1.5, urea 10
㎏, is added in mixer and is stirred, and speed of agitator is 120rpm, and mixing time is that 80min obtains compound；
(2) add mixture into double screw extruder, regulation pH value is to 8.5, and double screw extruder is divided into four works
Make temperature, the first operating temperature is 135 DEG C, and the second operating temperature is 180 DEG C, the 3rd operating temperature is 175 DEG C, the 4th work temperature
Spend for 165 DEG C, environmentally friendly degradable type high polymer material is obtained after extruding.
After the high degradable type high polymer material of mechanical performance that embodiment 1 to 5 and comparative example 1-2 are prepared, its property
Energy test result is as shown in the table：
| Tensile strength (MPa) | Elongation at break (%) | Natural degradation number of days (my god) | |
| Embodiment 1 | 50.5 | 174 | 42 |
| Embodiment 2 | 55.3 | 180 | 40 |
| Embodiment 3 | 57.4 | 195 | 38 |
| Embodiment 4 | 59.0 | 204 | 36 |
| Embodiment 5 | 69.3 | 217 | 33 |
| Comparative example 1 | 33.3 | 137 | 52 |
| Comparative example 2 | 34.9 | 140 | 54 |
As can be seen that being selected by the composition material to environment-friendly degradable type high polymer material from the contrast of three item datas
Select and match, the correlated performance of environment-friendly degradable type high polymer material prepared by embodiment 5 is significantly higher than embodiment 1-4 and comparative example
1-2。
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (4)
1. the high degradable type high polymer material of a kind of mechanical performance, it is characterised in that by weight, including following raw material：
2. the high degradable type high polymer material of a kind of mechanical performance according to claim 1, it is characterised in that with weight
Meter, including following raw material：
3. the high degradable type high polymer material of a kind of mechanical performance according to claim 1, it is characterised in that with weight
Meter, including following raw material：
4. a kind of preparation method of the high degradable type high polymer material of mechanical performance according to claim 1, its feature
It is, this method comprises the following steps：
(1) 40-60 parts of modified natural polymer material is weighed；Epoxide modified silicone resin 10-16 parts；12-17 parts of polyvinyl alcohol；
3-6 parts of wood fibre；2-7 parts of xylan；5-10 parts of zirconium diboride；13-18 parts of suberic acid；3-8 parts of titanate coupling agent；Titanium white
0.5-1.5 parts of powder；5-10 parts of urea, is added in mixer and is stirred, and speed of agitator is 100rpm-120rpm, during stirring
Between obtain compound for 40min-80min；
(2) add mixture into double screw extruder, regulation pH value to 8.0-8.5, double screw extruder is divided into four works
Make temperature, the first operating temperature is 120-135 DEG C, and the second operating temperature is 140-180 DEG C, and the 3rd operating temperature is 150-175
DEG C, the 4th operating temperature is 160-165 DEG C, and environmentally friendly degradable type high polymer material is obtained after extruding.
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| CN201710314438.0A CN107266927A (en) | 2017-05-06 | 2017-05-06 | High degradable type high polymer material of a kind of mechanical performance and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486806A (en) * | 2009-02-17 | 2009-07-22 | 四川大学 | Natural polymer / degradable polymer composite material and preparation thereof |
| CN102875850A (en) * | 2012-09-04 | 2013-01-16 | 青岛保利康新材料有限公司 | Environment-friendly degrading polymer material |
| CN102875852A (en) * | 2012-10-11 | 2013-01-16 | 武汉华丽环保科技有限公司 | Biomass-plastic and preparation method thereof |
| CN103289171A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | Preparation method of high-strength easy-degradation master batch for plastic bags |
| CN103992518A (en) * | 2014-04-30 | 2014-08-20 | 安徽省宁国市明浩包装材料有限公司 | Biodegradable packaging material |
| CN104371290A (en) * | 2014-11-14 | 2015-02-25 | 苏州蔻美新材料有限公司 | Environment-friendly composite biological high polymer material and preparation method thereof |
| CN104804226A (en) * | 2015-04-29 | 2015-07-29 | 青岛海蓝海洋复合功能材料科技有限公司 | High-tenacity automotive plastic |
-
2017
- 2017-05-06 CN CN201710314438.0A patent/CN107266927A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486806A (en) * | 2009-02-17 | 2009-07-22 | 四川大学 | Natural polymer / degradable polymer composite material and preparation thereof |
| CN102875850A (en) * | 2012-09-04 | 2013-01-16 | 青岛保利康新材料有限公司 | Environment-friendly degrading polymer material |
| CN102875852A (en) * | 2012-10-11 | 2013-01-16 | 武汉华丽环保科技有限公司 | Biomass-plastic and preparation method thereof |
| CN103289171A (en) * | 2013-06-24 | 2013-09-11 | 苏州新区佳合塑胶有限公司 | Preparation method of high-strength easy-degradation master batch for plastic bags |
| CN103992518A (en) * | 2014-04-30 | 2014-08-20 | 安徽省宁国市明浩包装材料有限公司 | Biodegradable packaging material |
| CN104371290A (en) * | 2014-11-14 | 2015-02-25 | 苏州蔻美新材料有限公司 | Environment-friendly composite biological high polymer material and preparation method thereof |
| CN104804226A (en) * | 2015-04-29 | 2015-07-29 | 青岛海蓝海洋复合功能材料科技有限公司 | High-tenacity automotive plastic |
Non-Patent Citations (1)
| Title |
|---|
| 廉正光: "《最新塑料材料选用、配方设计、成型技术与模具设计及设备选用、维修、技术参数实用手册 第1册》", 30 April 2005 * |
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Application publication date: 20171020 |