CN107556636A - A kind of degradable plastic packaging material and its preparation technology - Google Patents
A kind of degradable plastic packaging material and its preparation technology Download PDFInfo
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- CN107556636A CN107556636A CN201710906836.1A CN201710906836A CN107556636A CN 107556636 A CN107556636 A CN 107556636A CN 201710906836 A CN201710906836 A CN 201710906836A CN 107556636 A CN107556636 A CN 107556636A
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Abstract
The invention discloses a kind of degradable plastic packaging material, it is characterised in that：The material is made up of composition once by weight：5.6 ~ 30 parts of EPS90 ~ 120 part, 70 ~ 85 parts of plant modified starch, 60 ~ 75 parts of PLA, 90 ~ 120 parts of biodegradation promotor, 4 ~ 12 parts of releasing agent, 3 ~ 6 parts of plasticizer and polymer bulking agents, its preparation technology comprises the following steps：（1）Mixed material；（2）It is granulated；（3）Into embryo；（4）Blowing fluorination；（5）Cooling and shaping；Degradable plastic packaging material provided by the present invention has degradability and mechanical property concurrently, and toxic factor is extremely low, health is not influenceed, releasing agent efficiency high, heat endurance are good.
Description
Technical field
The present invention relates to a kind of degradable plastic packaging material and its preparation technology.
Background technology
Existing plastic products are mostly using the vistanex such as polychlorostyrene second that machine-shaping is easy, heat decomposition temperature is higher
Alkene, polyethylene, polypropylene etc. are made as raw material, although vistanex is that one kind is with fastest developing speed, kind is most, yield is maximum
Resin, but vistanex is not degradable, difficult after discarding for containing these hollow containers such as agricultural chemicals, medicine, makeup
With processing, fill the environmental pollution because it can not degrade then caused by, burning then produce it is a large amount of two evils because and toxic gas, therefore, many
Researcher is directed to the research of some degradation plastics and its preparation of degradation plastic packaging.
The content of the invention
The present invention seeks to：A kind of degradable plastic packaging material and its preparation technology are provided.
The technical scheme is that：A kind of degradable plastic packaging material, the material by by weight once into
It is grouped into：EPS90 ~ 120 part, 70 ~ 85 parts of plant modified starch, 60 ~ 75 parts of PLA, 90 ~ 120 parts of biodegradation promotor,
5.6 ~ 30 parts of 4 ~ 12 parts of releasing agent, 3 ~ 6 parts of plasticizer and polymer bulking agents.
Further：The plant modified starch is that modified corn starch, wheat converted starch and potato denaturation are formed sediment
One or more of mixtures in powder.
Further：The plasticizer is DEHP, DBP, ESO one or more of mixtures.
Further：The releasing agent is high polymer releasing agent, and the releasing agent is polyethylene glycol, low molecular weight polyethylene
One or both mixture.
Present invention also offers a kind of preparation technology of degradable plastic packaging material, comprise the following steps：
（1）Mixed material：By each component by weight metering, and stirred by mixer；
（2）It is granulated：By step（1）In be well mixed material by automatic charging equipment add extruding granulator in extruding pelletization；
（3）Into embryo：The pellet of gained in step (2) is added in the extruder hopper of extrusion blow moulding machine, passes through extrusion
The melting charge mutually to have merged into an organic whole is extruded into embryo mould, the outer institute of the tube extruding machine head by the fusion plastification of machine with the excipient of tube extruding machine head
The heater being provided with makes it maintain molten condition embryo mould heating；
（4）Blowing fluorination：By step（3）In prepared embryo mould import and set in the hollow container mould of shape, in closure
Empty container mould, and fluorine gas into the die cavity of hollow container mould is passed through from aerating system simultaneously, make the pipe of importing by having set
Fixed mould molding simultaneously completes surface fluorination, the aerating system includes fluorine tank and the fluorine tank periphery be provided with it is saturating
Bright protective cover, absorbent is provided with the transparent shield；
（5）Cooling and shaping：Suck back the fluorine gas full of die cavity while squeeze into air and cooling water is passed through into mould, make to produce in die cavity
Product are shaped.
Further：The step（4）Middle be provided with absorbent is one kind of Y-aluminum oxide, alumina and milk of lime
Or several mixtures, and the mixture is powder mixture.
It is an advantage of the invention that：
1. a kind of degradable plastic packaging material provided by the present invention, major ingredient EPS, plant modified starch and PLA,
Have degradability and mechanical property concurrently.
A kind of degradable plastic packaging material provided by the present invention, added with biodegradation promotor, the degraded of material
Performance is extremely strong.
A kind of degradable plastic packaging material provided by the present invention, be added with plasticizer, and the plasticizer be DEHP,
DBP, ESO one or more of mixtures, toxic factor is extremely low, and health is not influenceed.
A kind of degradable plastic packaging material provided by the present invention, added with releasing agent, and the releasing agent is poly- second two
Alcohol, low molecular weight polyethylene one or both mixture, releasing agent efficiency high, heat endurance are good.
A kind of preparation technology of degradable plastic packaging material provided by the present invention, the fluorine tank periphery in aerating system
Provided with transparent shield, once fluorine gas leakage can be obstructed and found in time, and it is provided with and absorbs in the transparent shield
Agent, it can absorb revealed fluorine gas.
A kind of preparation technology of degradable plastic packaging material provided by the present invention, it is provided with set transparent shield
Absorbent be powdered Y-aluminum oxide, alumina and milk of lime one or more of mixtures, with fluorine gas area
Greatly, reaction effect is good, and the absorbent cost is cheap.
Embodiment
Embodiment 1：A kind of degradable plastic packaging material, the material are made up of composition once by weight：
EPS100 parts, 75 parts of plant modified starch, 60 parts of PLA, 95 parts of biodegradation promotor, 6 parts of releasing agent, 5 parts of plasticizer,
And 8 parts of polymer bulking agents.
The plant modified starch is modified corn starch, the mixture of wheat converted starch.
The plasticizer is DEHP, DBP mixture.
The releasing agent is high polymer releasing agent, and the releasing agent is polyethylene glycol.
The preparation technology of above-mentioned degradable plastic packaging material, comprises the following steps：
（1）Mixed material：By each component by weight metering, and stirred by mixer.
（2）It is granulated:By step（1）In the material that is well mixed added by automatic charging equipment in extruding granulator and extrude and make
Grain.
（3）Into embryo：The pellet of gained in step (2) is added in the extruder hopper of extrusion blow moulding machine, passed through
The melting charge mutually to have merged into an organic whole is extruded into embryo mould, the tube extruding machine head by the fusion plastification of extruder with the excipient of tube extruding machine head
Outer be provided with heater makes it maintain molten condition embryo mould heating.
（4）Blowing fluorination：By step（3）In prepared embryo mould import and set in the hollow container mould of shape, close
Close hollow container mould, and fluorine gas into the die cavity of hollow container mould be passed through from aerating system simultaneously, make the pipe of importing by
The mould molding that has set simultaneously completes surface fluorination, and the aerating system includes fluorine tank and the fluorine tank periphery is provided with
Transparent shield, be provided with absorbent in the transparent shield, the absorbent is Y-aluminum oxide, alumina and milk of lime
Mixture, and the mixture is powder mixture.
（5）Cooling and shaping：Suck back the fluorine gas full of die cavity while squeeze into air and cooling water is passed through into mould, make die cavity
Interior product approval.
Embodiment 2：A kind of degradable plastic packaging material, the material are made up of composition once by weight：
EPS110 parts, 80 parts of plant modified starch, 62 parts of PLA, 110 parts of biodegradation promotor, 9 parts of releasing agent, plasticizer 5.5
15 parts of part and polymer bulking agents.
The plant modified starch is the mixture in wheat converted starch and modified potato starch.
The plasticizer is DBP, ESO mixture.
The releasing agent is high polymer releasing agent, and the releasing agent is polyethylene glycol, the mixture of low molecular weight polyethylene.
The preparation technology of above-mentioned degradable plastic packaging material, comprises the following steps：
（1）Mixed material：By each component by weight metering, and stirred by mixer.
（2）It is granulated：By step（1）In the material that is well mixed added by automatic charging equipment in extruding granulator and extrude and make
Grain.
（3）Into embryo：The pellet of gained in step (2) is added in the extruder hopper of extrusion blow moulding machine, passed through
The melting charge mutually to have merged into an organic whole is extruded into embryo mould, the tube extruding machine head by the fusion plastification of extruder with the excipient of tube extruding machine head
Outer be provided with heater makes it maintain molten condition embryo mould heating.
（4）Blowing fluorination：By step（3）In prepared embryo mould import and set in the hollow container mould of shape, close
Close hollow container mould, and fluorine gas into the die cavity of hollow container mould be passed through from aerating system simultaneously, make the pipe of importing by
The mould molding that has set simultaneously completes surface fluorination, and the aerating system includes fluorine tank and the fluorine tank periphery is provided with
Transparent shield, absorbent is provided with the transparent shield, the absorbent is the mixture of alumina and milk of lime, and
The mixture is powder mixture.
（5）Cooling and shaping：Suck back the fluorine gas full of die cavity while squeeze into air and cooling water is passed through into mould, make die cavity
Interior product approval.
Certainly the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow be familiar with technique
People can understand present disclosure and implement according to this, it is not intended to limit the scope of the present invention.It is all according to this hair
The modification that the Spirit Essence of bright main technical schemes is done, it should all be included within the scope of the present invention.
Claims (6)
- A kind of 1. degradable plastic packaging material, it is characterised in that：The material is made up of composition once by weight： EPS90 ~ 120 part, 70 ~ 85 parts of plant modified starch, 60 ~ 75 parts of PLA, 90 ~ 120 parts of biodegradation promotor, releasing agent 4 ~ 5.6 ~ 30 parts of 12 parts, 3 ~ 6 parts of plasticizer and polymer bulking agents.
- A kind of 2. degradable plastic packaging material according to claim 1, it is characterised in that：The plant modified starch is One or more of mixtures in modified corn starch, wheat converted starch and modified potato starch.
- A kind of 3. degradable plastic packaging material according to claim 1, it is characterised in that：The plasticizer be DEHP, DBP, ESO one or more of mixtures.
- A kind of 4. degradable plastic packaging material according to claim 1, it is characterised in that：The releasing agent is high polymer Releasing agent, the releasing agent is polyethylene glycol, the mixture of the one or both of low molecular weight polyethylene.
- A kind of 5. preparation technology of degradable plastic packaging material, it is characterised in that：Comprise the following steps：（1）Mixed material：By each component by weight metering, and stirred by mixer；（2）It is granulated：By step（1）In be well mixed material by automatic charging equipment add extruding granulator in extruding pelletization；（3）Into embryo：The pellet of gained in step (2) is added in the extruder hopper of extrusion blow moulding machine, passes through extrusion The melting charge mutually to have merged into an organic whole is extruded into embryo mould, the outer institute of the tube extruding machine head by the fusion plastification of machine with the excipient of tube extruding machine head The heater being provided with makes it maintain molten condition embryo mould heating；（4）Blowing fluorination：By step（3）In prepared embryo mould import and set in the hollow container mould of shape, in closure Empty container mould, and fluorine gas into the die cavity of hollow container mould is passed through from aerating system simultaneously, make the pipe of importing by having set Fixed mould molding simultaneously completes surface fluorination, the aerating system includes fluorine tank and the fluorine tank periphery be provided with it is saturating Bright protective cover, absorbent is provided with the transparent shield；（5）Cooling and shaping：Suck back the fluorine gas full of die cavity while squeeze into air and cooling water is passed through into mould, make to produce in die cavity Product are shaped.
- 6. the preparation technology of degradable plastic packaging material according to claim 5, it is characterised in that：The step（4） Middle be provided with absorbent is one or more of mixtures of Y-aluminum oxide, alumina and milk of lime, and the mixture is Powder mixture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710906836.1A CN107556636A (en) | 2017-09-29 | 2017-09-29 | A kind of degradable plastic packaging material and its preparation technology |
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| CN201710906836.1A CN107556636A (en) | 2017-09-29 | 2017-09-29 | A kind of degradable plastic packaging material and its preparation technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400966A (en) * | 2018-11-22 | 2019-03-01 | 詹珠兰 | A kind of degradable plastic material formula |
| CN111718551A (en) * | 2020-07-08 | 2020-09-29 | 浙江晟祺实业有限公司 | Preparation process of degradable packaging material based on biological matrix |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947117A (en) * | 2017-05-04 | 2017-07-14 | 淄博成达塑化有限公司 | Fiber reinforcement starch foaming tableware of complete biodegradable and preparation method thereof |
-
2017
- 2017-09-29 CN CN201710906836.1A patent/CN107556636A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947117A (en) * | 2017-05-04 | 2017-07-14 | 淄博成达塑化有限公司 | Fiber reinforcement starch foaming tableware of complete biodegradable and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400966A (en) * | 2018-11-22 | 2019-03-01 | 詹珠兰 | A kind of degradable plastic material formula |
| CN111718551A (en) * | 2020-07-08 | 2020-09-29 | 浙江晟祺实业有限公司 | Preparation process of degradable packaging material based on biological matrix |
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Application publication date: 20180109 |