CN105199335A - Preparation method of degradable plastic thin film - Google Patents
Preparation method of degradable plastic thin film Download PDFInfo
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- CN105199335A CN105199335A CN201510598444.4A CN201510598444A CN105199335A CN 105199335 A CN105199335 A CN 105199335A CN 201510598444 A CN201510598444 A CN 201510598444A CN 105199335 A CN105199335 A CN 105199335A
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Abstract
The invention discloses a preparation method of a degradable plastic thin film. The method comprises the following steps that S1, the raw materials of 25-80 parts by weight of biodegradable materials, 30-75 parts by weight of filling powder and 2-10 parts by weight of auxiliaries are weighed; S2, the biodegradable materials and the filling powder are fed into a high-speed mixer to be fully and evenly mixed for 2-4 h, then the auxiliaries are added, full and even mixing is continuously conducted for 1-3 h, and master batch is obtained; S3, the master batch is filled into a double-screw extruder for extrusion pelletization; S4, master pellets obtained in the third step are put into a film blowing machine, and the degradable plastic thin film can be prepared. According to the preparation method of the high-filled degradable thin film, the raw materials are simple, the cost is low, the tensile strength is high, and the preparation method is suitable for being applied to production of plastic thin films.
Description
Technical field
The present invention relates to a kind of preparation method of degradable plastic film, belong to plastics preparing technical field.
Background technology
Plastics film is indispensable a kind of material in modern's daily life, as plastics bag and wrapping material etc., applies very extensive.But at present, huge plastics manufacture and discarded amount cause irreversible pollution and destruction to the environment that we depend on for existence.In order to alleviate the in short supply of petroleum resources, reduce the harm of white pollution, degradable plastic film becomes the focus that investigators pay close attention to, the research of degradation material achieves certain achievement, but the price of degradation material is higher, the cost reducing degradable plastic film becomes during degradable plastic film is applied the bottleneck needing solution badly.
Summary of the invention
Technical problem to be solved by this invention is to provide the preparation method of the high filling degradable plastics film that a kind of raw material is simple, cost is lower, tensile strength is good.
For solving above technical problem, the technical solution used in the present invention is:
A preparation method for degradable plastic film, comprises following steps:
S1, takes each raw material according to following parts by weight: biodegradable material 25-80 part, fills powder 30-75 part, auxiliary agent 2-10 part;
S2, sends into described biodegradable material and filling powder in homogenizer and fully mixes 2-4h, then add described auxiliary agent, continue fully to mix 1-3h, obtained masterbatch;
S3, inserts extruding pelletization in twin screw extruder by described masterbatch;
S4, puts into inflation film manufacturing machine by the master batch obtained by S3 and can obtain degradable plastic film.
Described biodegradable material comprises any one in poly butylene succinate, poly terephthalic acid adipic acid butanediol ester, poly(lactic acid).
Described filling powder comprises any one in wood powder, treated starch, modified calcium carbonate, modified talc powder, modified coal ash, polynite, kaolin.
Described auxiliary agent comprises softening agent, lubricant, thermo-stabilizer.
Described softening agent comprises any one in tributyl acetylcitrate, glycerine, acetic acid tri-n-butyl, phthalic acid.
Described lubricant comprises any one in calcium stearate, oxidized polyethlene wax, stearin, paraffin.
The high filling degradable film of one provided by the present invention, owing to filling the use of powder, the consumption of biodegradable material can be reduced, the filling powder used can be wood powder, treated starch, modified calcium carbonate, modified talc powder, modified coal ash, polynite, kaolin etc., composition is cheap, and wherein flyash more belongs to the recycling of waste; High filling degradable plastics film provided by the present invention has good tensile strength, can be used for the manufacture of wrapping material, plastics bag, and auxiliary dosage is few, making high filling degradable plastics when degrading, a large amount of fluidizer etc. has disadvantageous effect material to environment can not be discharged.The preparation method of a kind of high filling degradable film provided by the present invention, raw material is simple, cost is low, tensile strength is good, is applicable to being applied in the production of plastics film.
Embodiment
The invention will be further described below.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment one:
A preparation method for degradable plastic film, comprises following steps:
S1, takes each raw material according to following parts by weight: poly butylene succinate 25 parts, treated starch 30 parts, glycerine 2 parts;
S2, sends into described biodegradable material and filling powder in homogenizer and fully mixes 2h, then add described auxiliary agent, continue fully to mix 1h, obtained masterbatch;
S3, inserts extruding pelletization in twin screw extruder by described masterbatch;
S4, puts into inflation film manufacturing machine by the master batch obtained by S3 and can obtain degradable plastic film.
The tensile strength of degradable plastic film obtained is in this way 25.34MPa.
Embodiment two:
A preparation method for degradable plastic film, comprises following steps:
S1, takes each raw material according to following parts by weight: poly terephthalic acid adipic acid butanediol ester 80 parts, treated starch 75 parts, 10 parts, paraffin;
S2, sends into described biodegradable material and filling powder in homogenizer and fully mixes 4h, then add described auxiliary agent, continue fully to mix 3h, obtained masterbatch;
S3, inserts extruding pelletization in twin screw extruder by described masterbatch;
S4, puts into inflation film manufacturing machine by the master batch obtained by S3 and can obtain degradable plastic film.
The tensile strength of degradable plastic film obtained is in this way 30..17MPa.
Embodiment three:
A preparation method for degradable plastic film, comprises following steps:
S1, takes each raw material according to following parts by weight: poly(lactic acid) 62 parts, modified calcium carbonate 55 parts, tributyl acetylcitrate 7 parts;
S2, sends into described biodegradable material and filling powder in homogenizer and fully mixes 3.5h, then add described auxiliary agent, continue fully to mix 2h, obtained masterbatch;
S3, inserts extruding pelletization in twin screw extruder by described masterbatch;
S4, puts into inflation film manufacturing machine by the master batch obtained by S3 and can obtain degradable plastic film.
The tensile strength of degradable plastic film obtained is in this way 46.21MPa.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. a preparation method for degradable plastic film, is characterized in that: comprise following steps:
S1, takes each raw material according to following parts by weight: biodegradable material 25-80 part, fills powder 30-75 part, auxiliary agent 2-10 part;
S2, sends into described biodegradable material and filling powder in homogenizer and fully mixes 2-4h, then add described auxiliary agent, continue fully to mix 1-3h, obtained masterbatch;
S3, inserts extruding pelletization in twin screw extruder by described masterbatch;
S4, puts into inflation film manufacturing machine by the master batch obtained by S3 and can obtain degradable plastic film.
2. the preparation method of a kind of degradable plastic film as claimed in claim 1, is characterized in that: described biodegradable material comprises any one in poly butylene succinate, poly terephthalic acid adipic acid butanediol ester, poly(lactic acid).
3. the preparation method of a kind of degradable plastic film as claimed in claim 1, is characterized in that: described filling powder comprises any one in wood powder, treated starch, modified calcium carbonate, modified talc powder, modified coal ash, polynite, kaolin.
4. the preparation method of a kind of degradable plastic film as claimed in claim 1, is characterized in that: described auxiliary agent comprises softening agent, lubricant, thermo-stabilizer.
5. the preparation method of a kind of degradable plastic film as claimed in claim 4, is characterized in that: described softening agent comprises any one in tributyl acetylcitrate, glycerine, acetic acid tri-n-butyl, phthalic acid.
6. the preparation method of a kind of degradable plastic film as claimed in claim 4, is characterized in that: described lubricant comprises any one in calcium stearate, oxidized polyethlene wax, stearin, paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510598444.4A CN105199335A (en) | 2015-09-17 | 2015-09-17 | Preparation method of degradable plastic thin film |
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| CN201510598444.4A CN105199335A (en) | 2015-09-17 | 2015-09-17 | Preparation method of degradable plastic thin film |
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| CN105199335A true CN105199335A (en) | 2015-12-30 |
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Cited By (7)
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| CN106565995A (en) * | 2016-10-18 | 2017-04-19 | 成都新柯力化工科技有限公司 | Filling masterbatch special for ecological thin film and preparation method thereof |
| CN107541086A (en) * | 2017-10-09 | 2018-01-05 | 辽宁大学 | It is a kind of to utilize environment-friendly degradable express delivery packaging material of agricultural crop straw and preparation method thereof |
| CN109294184A (en) * | 2018-09-05 | 2019-02-01 | 安徽新翔包装材料有限公司 | A kind of environment-friendly degradable polybag and its manufacture craft |
| CN109673971A (en) * | 2018-11-15 | 2019-04-26 | 安徽靳氏食品有限公司 | A kind of special taste and the Salted duck egg production technology for reducing salting period |
| CN112795139A (en) * | 2020-12-31 | 2021-05-14 | 通源塑料包装(苏州)有限公司 | Preparation method of degradable biological plastic bag |
| CN112812401A (en) * | 2020-12-31 | 2021-05-18 | 通源塑料包装(苏州)有限公司 | Preparation method of high-strength plastic bag |
| CN113956624A (en) * | 2021-10-26 | 2022-01-21 | 山西和合众新材料科技有限公司 | Preparation method of biomass full-degradable water-retention and fertility-increasing agricultural mulching film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565995A (en) * | 2016-10-18 | 2017-04-19 | 成都新柯力化工科技有限公司 | Filling masterbatch special for ecological thin film and preparation method thereof |
| CN106565995B (en) * | 2016-10-18 | 2018-12-11 | 广州惠豪包装新材料有限公司 | A kind of ecology film dedicated filling mother stock and preparation method thereof |
| CN107541086A (en) * | 2017-10-09 | 2018-01-05 | 辽宁大学 | It is a kind of to utilize environment-friendly degradable express delivery packaging material of agricultural crop straw and preparation method thereof |
| CN109294184A (en) * | 2018-09-05 | 2019-02-01 | 安徽新翔包装材料有限公司 | A kind of environment-friendly degradable polybag and its manufacture craft |
| CN109673971A (en) * | 2018-11-15 | 2019-04-26 | 安徽靳氏食品有限公司 | A kind of special taste and the Salted duck egg production technology for reducing salting period |
| CN112795139A (en) * | 2020-12-31 | 2021-05-14 | 通源塑料包装(苏州)有限公司 | Preparation method of degradable biological plastic bag |
| CN112812401A (en) * | 2020-12-31 | 2021-05-18 | 通源塑料包装(苏州)有限公司 | Preparation method of high-strength plastic bag |
| CN113956624A (en) * | 2021-10-26 | 2022-01-21 | 山西和合众新材料科技有限公司 | Preparation method of biomass full-degradable water-retention and fertility-increasing agricultural mulching film |
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