CN106633201A - Preparation method of high-rigidity material special for thermoplastic starch injection molding - Google Patents
Preparation method of high-rigidity material special for thermoplastic starch injection molding Download PDFInfo
- Publication number
- CN106633201A CN106633201A CN201610870475.5A CN201610870475A CN106633201A CN 106633201 A CN106633201 A CN 106633201A CN 201610870475 A CN201610870475 A CN 201610870475A CN 106633201 A CN106633201 A CN 106633201A
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- China
- Prior art keywords
- starch
- parts
- tps
- plasticizer
- preparation
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Classifications
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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
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a preparation method of a high-rigidity material special for thermoplastic starch (TPS) injection molding. The preparation method is characterized by including: evenly mixing 100 parts of starch, 8-12 parts of plasticizer and 8-12 parts of ethylene-vinyl acetate copolymer (EVA), and extruding the mixture in an extruder at 120-180 DEG C to obtain the high-rigidity material special for the TPS injection molding. The material is low in plasticizer use amount (not more than 12 parts), high in starch content, low in cost, high in tensile strength and low in elasticity.
Description
Technical field
The invention belongs to macromolecule material preparation area, particularly relates to a kind of high rigidity thermoplastic starch（TPS）Note
The preparation method of modeling PP Pipe Compound.
Background technology
Starch is used as a kind of renewable natural resources being widely present, it has also become the important raw material of industry.TPS refers to starch
In the presence of a certain amount of plasticizer, through heating, the effect of mechanical force, shape under conditions of its original molecular structure is destroyed
Into material.After TPS decomposes, can be absorbed as organic fertilizer, any injurious effects will not be produced to environment.Plasticiser
Usually containing the micromolecular compound of the group that hydrogen bond can be formed with hydroxyl in starch, such as hydroxyl, amino or amide groups base
Group.
Macromolecule journal, 2004,（2）：With with glycerine and formamide being prepared for TPS as plasticiser respectively in 240 ~ 245,
The weight ratio of starch and plasticizer is 100:30, the performance of the TPS of formamide plasticising is more excellent.Chinese Plastics, 2002,16
（9）：Using TPS is with polycaprolactone (PCL) melt blending and extrusion can be used to prepare the modeling of totally biodegradable in 34 ~ 36
Material, in TPS, plasticizer number is more than or equal to 27 parts, and research shows, the content of component PCL and plasticizer water and glycerine is to body
The mechanical property and resistance to water of system has significant impact.Plastics science and technology, 2003,（5）：Ethylene-vinyl acetate copolymer is used in 1 ~ 3
（EVA）Modified TPS, starch in TPS：The weight ratio of glycerine is 100:30 ~ 40, the tensile strength and elongation at break of system by
It is cumulative big, and during glycerol content increase, the tensile strength of system declines（>6MPa）, elongation at break raising（>20%）.
From above-mentioned document it is found that plasticizer consumption is higher in TPS, improve the cost of TPS and affect its property
Energy.
The content of the invention
The purpose of the present invention exactly provides a kind of high rigidity TPS for the weak point in the presence of above-mentioned prior art
The preparation method of injection PP Pipe Compound.
One aspect of the present invention is：Comprise the following steps：
Starch, plasticizer and EVA are well mixed, the addition of each thing is 100 parts of starch, 8 ~ 12 parts of plasticizer, EVA8 ~
12 parts, mixture is extruded in an extruder at 120 ~ 180 DEG C, you can obtain high rigidity TPS injection PP Pipe Compound.
Starch used by the present invention be cornstarch, wheaten starch, potato starch, farina in any one or
It is several.
Plasticizer used by the present invention be glycerine, propane diols, butanediol in any one or a few.
Beneficial effects of the present invention are as follows：
Plasticizer consumption is low in TPS, and plasticizer consumption is only 8-12 parts in 100 parts of starch.
Content of starch is high in TPS, more than or equal to 100/（100+12+12）= 80.6%.
The rigidity of TPS is big, tensile strength>10MPa, elongation at break<10%.
Specific embodiment
The present invention is described in further detail below with reference to embodiment.Be necessary it is pointed out here that be that following examples are served only for
The present invention is further described, it is impossible to be interpreted as limiting the scope of the invention, the person skilled in the art in the field
Some nonessential modifications and adaptations can be made to the present invention according to the invention described above content.
Embodiment 1. is well mixed cornstarch, glycerine and EVA, and the addition of each thing is 100 parts of starch, glycerine
10 parts, EVA12 parts, mixture is extruded in single screw extrusion machine at 150 DEG C, you can obtain high rigidity TPS injection PP Pipe Compound,
Its tensile strength is 12.3MPa, and elongation at break is 5.1%.
Embodiment 2. is well mixed cornstarch, propane diols oil and EVA, and the addition of each thing is 100 parts of starch,
12 parts of propane diols, EVA12 parts, mixture is extruded in double screw extruder at 150 DEG C, you can obtain the injection of high rigidity TPS
PP Pipe Compound, its tensile strength is 11.7MPa, and elongation at break is 6.5%.
Embodiment 3. is well mixed potato starch, butanediol and EVA, and the addition of each thing is 100 parts of starch, fourth
12 parts of glycol, EVA10 parts, mixture is extruded in double screw extruder at 150 DEG C, you can obtain the injection of high rigidity TPS special
Materials, its tensile strength is 12.15MPa, and elongation at break is 5.2%.
Claims (3)
1. a kind of high rigidity thermoplastic starch（TPS）The preparation method of injection PP Pipe Compound, it is characterised in that：Under methods described includes
State step：By starch, plasticizer and ethylene-vinyl acetate copolymer（EVA）It is well mixed, the addition of each thing is starch
100 parts, 8 ~ 12 parts of plasticizer, EVA8 ~ 12 part, mixture is extruded in an extruder at 120 ~ 180 DEG C, you can obtain high rigidity
TPS is molded PP Pipe Compound.
2. method according to claim 1, it is characterised in that：Starch used is cornstarch, wheaten starch, potato shallow lake
Any one or a few in powder, farina.
3. method according to claim 1, it is characterised in that：Plasticizer used is to appoint in glycerine, propane diols, butanediol
Anticipate one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870475.5A CN106633201A (en) | 2016-10-07 | 2016-10-07 | Preparation method of high-rigidity material special for thermoplastic starch injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870475.5A CN106633201A (en) | 2016-10-07 | 2016-10-07 | Preparation method of high-rigidity material special for thermoplastic starch injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106633201A true CN106633201A (en) | 2017-05-10 |
Family
ID=58854940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610870475.5A Pending CN106633201A (en) | 2016-10-07 | 2016-10-07 | Preparation method of high-rigidity material special for thermoplastic starch injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106633201A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932646A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Method for preparing thermoplastic compositions based on plasticized starch and resulting compositions |
| CN101932648A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Thermoplastic compositions based on soluble starch and method for preparing such compositions |
| KR101276294B1 (en) * | 2012-01-20 | 2013-06-24 | 대상 주식회사 | Starch based hot melt adhesiven with improved compatibility and adhesion strength |
| CN104558700A (en) * | 2014-12-31 | 2015-04-29 | 成都新柯力化工科技有限公司 | Preparing method of bioplastic master batch |
-
2016
- 2016-10-07 CN CN201610870475.5A patent/CN106633201A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101932646A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Method for preparing thermoplastic compositions based on plasticized starch and resulting compositions |
| CN101932648A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Thermoplastic compositions based on soluble starch and method for preparing such compositions |
| KR101276294B1 (en) * | 2012-01-20 | 2013-06-24 | 대상 주식회사 | Starch based hot melt adhesiven with improved compatibility and adhesion strength |
| CN104558700A (en) * | 2014-12-31 | 2015-04-29 | 成都新柯力化工科技有限公司 | Preparing method of bioplastic master batch |
Non-Patent Citations (1)
| Title |
|---|
| 刘宏治: "热塑性淀粉材料的制备、结构与性能的研究", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 * |
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Application publication date: 20170510 |
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