CN112898751A - Modification processing technology for polylactic resin, PBAT and talcum powder - Google Patents
Modification processing technology for polylactic resin, PBAT and talcum powder Download PDFInfo
- Publication number
- CN112898751A CN112898751A CN202110121992.3A CN202110121992A CN112898751A CN 112898751 A CN112898751 A CN 112898751A CN 202110121992 A CN202110121992 A CN 202110121992A CN 112898751 A CN112898751 A CN 112898751A
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- Prior art keywords
- pbat
- talcum powder
- polylactic
- processing technology
- polylactic resin
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
Abstract
The invention discloses a modification processing technology of polylactic resin, PBAT and talcum powder, which comprises the following steps of firstly, material treatment; step two, blending and processing; step three, modification processing; step four, forming treatment; step five, storing and standing; in the first step, proper polylactic resin, PBAT and talcum powder are manually selected, and the polylactic resin, the PBAT and the talcum powder are respectively filtered; the processing technology for modifying the polylactic resin, the PBAT and the talcum powder is simple to operate and low in cost, the polylactic resin, the PBAT and the talcum powder are used for modification treatment and then injection molding is carried out, the operation is simple, resources are saved, time and labor are saved, the strength and the elasticity are excellent, the processing technology is beneficial to users, the technology is simple and precise, other expensive polylactic resin, PBAT and talcum powder modification technologies can be replaced, the effect is obvious, the materials are cheap and the cost is low, the cost is greatly saved, and the processing and the production are facilitated.
Description
Technical Field
The invention relates to the technical field of modification of polylactic resin, PBAT and talcum powder, in particular to a modification processing technology of polylactic resin, PBAT and talcum powder.
Background
Polylactic acid, also known as polylactide, is a polyester polymer obtained by polymerizing lactic acid as a main raw material, and is a novel biodegradable material; the traditional polylactic resin, PBAT and talcum powder are modified by high-temperature processing, so that the molding cannot be realized, the operation is complex, the resources are wasted, the time and the labor are wasted, the high strength and the elasticity are not realized, the use by users is not facilitated, and the traditional polylactic resin, PBAT and talcum powder are expensive in modified materials, the cost is increased, and the processing and the production are not facilitated; aiming at the defects, it is necessary to design a modification processing technology of polylactic resin, PBAT and talcum powder.
Disclosure of Invention
The invention aims to provide a modification processing technology of polylactic resin, PBAT and talcum powder, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a modification processing technology of polylactic resin, PBAT and talcum powder comprises the steps of firstly, material treatment; step two, blending and processing; step three, modification processing; step four, forming treatment; step five, storing and standing;
wherein in the first step, the material treatment comprises the following steps:
1) manually selecting proper polylactic resin, PBAT and talcum powder, and respectively filtering the polylactic resin, the PBAT and the talcum powder;
2) drying the filtered polylactic resin, PBAT and talcum powder, and then storing in a shade place for later use;
wherein in the second step, the blending process comprises the following steps:
1) manually preparing a reaction kettle, pouring polylactic resin into the reaction kettle, adding a certain amount of water, stirring, and standing for 10-20 min;
2) then respectively pouring the PBAT and the talcum powder into the reaction kettle, raising the temperature to 40-60 ℃, slowly stirring for 1-2h, and then sealing;
wherein in the third step, the modification processing comprises the following steps:
1) manually pouring out the mixture in the reaction kettle in the step 2), placing the mixture in an ultrasonic machine, carrying out ultrasonic treatment for 1-2h, and then standing for 10-20 min;
2) pouring the mixture into a dispersion machine, adding an initiator, performing dispersion processing on the mixture, and pouring the mixture into a reaction kettle again to perform closed reaction for 1 to 2 hours;
wherein in the fourth step, the molding treatment comprises the following steps:
1) manually pouring the mixture reacted in the step three 2) into an injection mold, adopting a hot runner system, raising the temperature to 180-;
2) performing injection treatment through an injection mold, wherein the rotating speed of a screw is 160-180r/min, and continuously processing for 1-2h to obtain polylactic resin, PBAT and talcum powder modified materials;
in the fifth step, the polylactic acid resin obtained in the fourth step 2), the PBAT and the talcum powder modified material are manually taken out and put into a barrel, and then the barrel is placed in the shade for storage.
According to the technical scheme, a dryer can be adopted for drying in the step one 2).
According to the technical scheme, the reaction kettle in the step two 1) needs to be cleaned before use.
According to the technical scheme, the initiator in the step three 2) is a free radical initiator.
According to the technical scheme, the polylactic acid resin obtained in the step four 2) and the modified materials of PBAT and talcum powder need to be cooled.
According to the technical scheme, disinfection is required before barreling in the fifth step.
Compared with the prior art, the invention has the following beneficial effects: the processing technology for modifying the polylactic resin, the PBAT and the talcum powder is simple to operate and low in cost, the polylactic resin, the PBAT and the talcum powder are used for modification treatment and then injection molding is carried out, the operation is simple, resources are saved, time and labor are saved, the strength and the elasticity are excellent, the processing technology is beneficial to users, the technology is simple and precise, other expensive polylactic resin, PBAT and talcum powder modification technologies can be replaced, the effect is obvious, the materials are cheap and the cost is low, the cost is greatly saved, and the processing and the production are facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a modification processing technology of polylactic resin, PBAT and talcum powder comprises the steps of firstly, material treatment; step two, blending and processing; step three, modification processing; step four, forming treatment; step five, storing and standing;
wherein in the first step, the material treatment comprises the following steps:
1) manually selecting proper polylactic resin, PBAT and talcum powder, and respectively filtering the polylactic resin, the PBAT and the talcum powder;
2) drying the filtered polylactic resin, PBAT and talcum powder by a dryer, and then storing in a cool place for later use;
wherein in the second step, the blending process comprises the following steps:
1) manually preparing a reaction kettle, wherein the reaction kettle needs to be cleaned before use, the polylactic resin is poured into the reaction kettle, a certain amount of water is added for stirring, and then the reaction kettle is kept stand for 10-20 min;
2) then respectively pouring the PBAT and the talcum powder into the reaction kettle, raising the temperature to 40-60 ℃, slowly stirring for 1-2h, and then sealing;
wherein in the third step, the modification processing comprises the following steps:
1) manually pouring out the mixture in the reaction kettle in the step 2), placing the mixture in an ultrasonic machine, carrying out ultrasonic treatment for 1-2h, and then standing for 10-20 min;
2) pouring the mixture into a dispersion machine, adding an initiator, dispersing the initiator by using a free radical initiator, and pouring the mixture into a reaction kettle again for closed reaction for 1-2 hours;
wherein in the fourth step, the molding treatment comprises the following steps:
1) manually pouring the mixture reacted in the step three 2) into an injection mold, adopting a hot runner system, raising the temperature to 180-;
2) performing injection treatment through an injection mould, wherein the rotating speed of a screw is 160-180r/min, and continuously processing for 1-2h to obtain polylactic resin, PBAT and talcum powder modified materials which need to be cooled;
in the fifth step, the polylactic acid resin obtained in the fourth step 2), the PBAT and the talcum powder modified material are manually taken out and put into a barrel, and the polylactic acid resin, the PBAT and the talcum powder modified material are required to be disinfected before being put into the barrel and then are stored in a shady and cool place.
Based on the above, the processing technology for modifying the polylactic acid resin, the PBAT and the talcum powder has the advantages of simple operation and low cost, adopts the polylactic acid resin, the PBAT and the talcum powder for modification treatment, and then performs injection molding, is simple to operate, saves resources, saves time and labor, has excellent strength and elasticity, and is beneficial to users.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A modification processing technology of polylactic resin, PBAT and talcum powder comprises the steps of firstly, material treatment; step two, blending and processing; step three, modification processing; step four, forming treatment; step five, storing and standing; the method is characterized in that:
wherein in the first step, the material treatment comprises the following steps:
1) manually selecting proper polylactic resin, PBAT and talcum powder, and respectively filtering the polylactic resin, the PBAT and the talcum powder;
2) drying the filtered polylactic resin, PBAT and talcum powder, and then storing in a shade place for later use;
wherein in the second step, the blending process comprises the following steps:
1) manually preparing a reaction kettle, pouring polylactic resin into the reaction kettle, adding a certain amount of water, stirring, and standing for 10-20 min;
2) then respectively pouring the PBAT and the talcum powder into the reaction kettle, raising the temperature to 40-60 ℃, slowly stirring for 1-2h, and then sealing;
wherein in the third step, the modification processing comprises the following steps:
1) manually pouring out the mixture in the reaction kettle in the step 2), placing the mixture in an ultrasonic machine, carrying out ultrasonic treatment for 1-2h, and then standing for 10-20 min;
2) pouring the mixture into a dispersion machine, adding an initiator, performing dispersion processing on the mixture, and pouring the mixture into a reaction kettle again to perform closed reaction for 1 to 2 hours;
wherein in the fourth step, the molding treatment comprises the following steps:
1) manually pouring the mixture reacted in the step three 2) into an injection mold, adopting a hot runner system, raising the temperature to 180-;
2) performing injection treatment through an injection mold, wherein the rotating speed of a screw is 160-180r/min, and continuously processing for 1-2h to obtain polylactic resin, PBAT and talcum powder modified materials;
in the fifth step, the polylactic acid resin obtained in the fourth step 2), the PBAT and the talcum powder modified material are manually taken out and put into a barrel, and then the barrel is placed in the shade for storage.
2. The modification processing technology of polylactic acid resin, PBAT and talcum powder according to claim 1, which is characterized in that: in the step one 2), a dryer can be adopted for drying.
3. The modification processing technology of polylactic acid resin, PBAT and talcum powder according to claim 1, which is characterized in that: the reaction kettle in the step two 1) needs to be cleaned before use.
4. The modification processing technology of polylactic acid resin, PBAT and talcum powder according to claim 1, which is characterized in that: the initiator in the step three 2) adopts a free radical initiator.
5. The modification processing technology of polylactic acid resin, PBAT and talcum powder according to claim 1, which is characterized in that: and cooling the polylactic acid resin obtained in the step four 2) and the modified materials of PBAT and talcum powder.
6. The modification processing technology of polylactic acid resin, PBAT and talcum powder according to claim 1, which is characterized in that: and in the fifth step, disinfection is required before barreling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121992.3A CN112898751A (en) | 2021-01-29 | 2021-01-29 | Modification processing technology for polylactic resin, PBAT and talcum powder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110121992.3A CN112898751A (en) | 2021-01-29 | 2021-01-29 | Modification processing technology for polylactic resin, PBAT and talcum powder |
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| CN112898751A true CN112898751A (en) | 2021-06-04 |
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| CN202110121992.3A Pending CN112898751A (en) | 2021-01-29 | 2021-01-29 | Modification processing technology for polylactic resin, PBAT and talcum powder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60208609D1 (en) * | 2001-08-01 | 2006-04-06 | Fuji Photo Film Co Ltd | Biodegradable plastic part and process for its production |
| JP2008201863A (en) * | 2007-02-19 | 2008-09-04 | Hiroshima Pref Gov | Method for producing molded article of polylactic acid resin |
| CN103571164A (en) * | 2012-08-03 | 2014-02-12 | 上海载和实业投资有限公司 | Polylactic acid/core-shell structure composite material and preparation method thereof |
| CN103627153A (en) * | 2012-08-20 | 2014-03-12 | 上海杰事杰新材料(集团)股份有限公司 | Entire biodegradation PLA/PBAT composite material and preparing method therefor |
| CN103709695A (en) * | 2013-12-26 | 2014-04-09 | 安徽聚美生物科技有限公司 | PLA (polylactic acid) modified material, preparation method thereof and PLA biodegradable mulching film |
| CN111892794A (en) * | 2020-07-15 | 2020-11-06 | 宁波百福得环保科技有限公司 | PBAT-talcum powder full-biodegradable blend and preparation method thereof |
-
2021
- 2021-01-29 CN CN202110121992.3A patent/CN112898751A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60208609D1 (en) * | 2001-08-01 | 2006-04-06 | Fuji Photo Film Co Ltd | Biodegradable plastic part and process for its production |
| JP2008201863A (en) * | 2007-02-19 | 2008-09-04 | Hiroshima Pref Gov | Method for producing molded article of polylactic acid resin |
| CN103571164A (en) * | 2012-08-03 | 2014-02-12 | 上海载和实业投资有限公司 | Polylactic acid/core-shell structure composite material and preparation method thereof |
| CN103627153A (en) * | 2012-08-20 | 2014-03-12 | 上海杰事杰新材料(集团)股份有限公司 | Entire biodegradation PLA/PBAT composite material and preparing method therefor |
| CN103709695A (en) * | 2013-12-26 | 2014-04-09 | 安徽聚美生物科技有限公司 | PLA (polylactic acid) modified material, preparation method thereof and PLA biodegradable mulching film |
| CN111892794A (en) * | 2020-07-15 | 2020-11-06 | 宁波百福得环保科技有限公司 | PBAT-talcum powder full-biodegradable blend and preparation method thereof |
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Application publication date: 20210604 |