CN112852114A - TPEE-based thin film material for blood bags - Google Patents
TPEE-based thin film material for blood bags Download PDFInfo
- Publication number
- CN112852114A CN112852114A CN202011420228.8A CN202011420228A CN112852114A CN 112852114 A CN112852114 A CN 112852114A CN 202011420228 A CN202011420228 A CN 202011420228A CN 112852114 A CN112852114 A CN 112852114A
- Authority
- CN
- China
- Prior art keywords
- tpee
- parts
- film material
- based film
- blood bags
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a TPEE-based film material for blood bags, which comprises the following components in parts by mass: 100 parts of blow molding grade TPEE, 50-80 parts of TPU, 10-15 parts of plasticizer, 2-5 parts of antioxidant, 3-5 parts of lubricant, 3-5 parts of hydrolysis stabilizer and 10-20 parts of montmorillonite. The TPEE-based film material for blood bags, which is prepared by carrying out four steps of banburying mixing, extrusion granulation, blow molding and surface modification on the materials, has good low-temperature performance, still has good softness at minus 20 ℃, is not cold-hardened and crisp, does not contain harmful plasticizer, and is favorable for ensuring the body health of blood users.
Description
Technical Field
The invention relates to the field of film materials, in particular to a TPEE (thermoplastic polyester elastomer) based film material for a blood bag.
Background
At present, common plastic blood bags commonly used in China are generally made of PVC materials, a large amount of DEHP plasticizer is generally required to be added in the processing process of the common PVC materials, DEHP is easy to precipitate in the using process, so that blood platelets in blood die, DEHP also has harmful effect on the liver of a human body, the low-temperature performance of the common plastic blood bags is poor, the common plastic blood bags are obviously hardened and even broken at the temperature of-20 ℃, and the common plastic blood bags are not suitable for storage and transportation of the plastic blood bags.
Disclosure of Invention
The technical problem mainly solved by the invention is to provide a TPEE-based thin film material for blood bags, which has good low-temperature storage performance.
In order to solve the technical problems, the invention adopts a technical scheme that: the TPEE-based film material for the blood bag comprises the following components in parts by mass:
100 parts of blow molding grade TPEE, 50-80 parts of TPU, 10-15 parts of plasticizer, 2-5 parts of antioxidant, 3-5 parts of lubricant, 3-5 parts of hydrolysis stabilizer and 10-20 parts of montmorillonite.
In a preferred embodiment of the invention, the TPU is a polyether TPU.
In a preferred embodiment of the invention, the medical plasticizer is epoxidized soybean oil,
In a preferred embodiment of the invention, the lubricant is compounded by stearate and silicone oil, and the compounding ratio is 1: 2-5.
In a preferred embodiment of the present invention, the stabilizer is a polycarbodiimide hydrolysis stabilizer.
In a preferred embodiment of the present invention, the antioxidant is a phosphite antioxidant.
In order to solve the technical problem, the invention adopts another technical scheme that: provided is a method for preparing a TPEE-based film material for a blood bag, which comprises the following steps:
step one, banburying and mixing: weighing the components according to the formula in sequence, and then placing the TPEE resin, the TPU resin, the medical plasticizer, the antioxidant, the lubricant and the hydrolysis stabilizer into an internal mixer for once internal mixing and mixing; after primary banburying, adding montmorillonite into a banbury mixer for secondary banburying and mixing;
step two, screw extrusion granulation: adding the mixture obtained in the step (1) after banburying mixing into a double-screw extruder, and extruding and granulating;
step three, blow molding: drying the material obtained in the step (2), and performing blow molding by using a blow molding machine to obtain a TPEE-based film semi-finished product for the blood bag;
step four, surface treatment: and (3) carrying out surface treatment on the blood bag TPEE base film by using a plasma surface treatment machine and a surface treatment agent, and then washing, drying and rolling to obtain a finished product film.
In a preferred embodiment of the present invention, the surface treatment agent in the fourth step is a mixture of oligo-monomers of ethylene glycol, propylene glycol and glycerol in any proportion.
The invention has the beneficial effects that: the invention takes the TPEE with extremely high cold resistance as the base material to manufacture the special film material for the blood bag, cancels the use of DEHP in the common PVC base material by adjusting a formula system, obviously reduces the damage of the precipitation of harmful substances to human bodies in the use process, and can still maintain higher physical properties even at the temperature of minus 20 ℃ because the TPEE material has extremely high environmental tolerance, does not cause cold hardness and embrittlement, and is beneficial to the low-temperature storage and transportation use of the blood bag.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
The embodiment of the invention comprises the following steps:
example 1
The TPEE-based film material for the blood bag comprises the following components in parts by mass:
100 parts of blow molding grade TPEE, 80 parts of TPU, 5 parts of plasticizer, 5 parts of antioxidant, 5 parts of lubricant, 5 parts of hydrolysis stabilizer and 20 parts of montmorillonite.
The TPU used is polyether TPU, and the reason for using the polyether TPU is that the polyether TPU is softer than the polyester TPU, and is beneficial to subsequent blow molding and film forming.
The plasticizer is epoxidized soybean oil which can be used as a plasticizer to improve the overall processing performance, has long-acting thermal stability, can reduce the dosage of a long-acting heat stabilizer or a long-acting oxidant, and is environment-friendly and harmless.
The lubricant is compounded by stearate and silicone oil, the stearate with the compounding ratio of 1: 5 can improve the overall processing performance besides the lubricating performance, and the rolling performance of the product can be improved and adhesion is prevented after the stearate and the silicone oil are compounded.
The stabilizer is a polycarbodiimide hydrolysis stabilizer, and the polycarbodiimide hydrolysis stabilizer can inhibit the hydrolysis tendency of TPEE by adding the polycarbodiimide hydrolysis stabilizer, so that the stability of the disposable blood bag is improved.
The antioxidant is phosphite antioxidant, and the phosphite antioxidant is mainly used for preventing the final performance of the product from being influenced by thermal oxidation in the processing process.
The addition of the montmorillonite can provide the dimensional stability of the final product and the mechanical property of the film, and is nontoxic and harmless to human bodies.
Example 2
The TPEE-based film material for the blood bag comprises the following components in parts by mass:
100 parts of blow molding grade TPEE, 50 parts of TPU, 10 parts of plasticizer, 3 parts of antioxidant 2 parts of lubricant, 3 parts of hydrolysis stabilizer and 10 parts of montmorillonite.
The TPU used is polyether TPU, and the reason for using the polyether TPU is that the polyether TPU is softer than the polyester TPU, and is beneficial to subsequent blow molding and film forming.
The plasticizer is epoxidized soybean oil which can be used as a plasticizer to improve the overall processing performance, has long-acting thermal stability, can reduce the dosage of a long-acting heat stabilizer or a long-acting oxidant, and is environment-friendly and harmless.
The lubricant is compounded by stearate and silicone oil, the stearate with the compounding ratio of 1:2 can improve the overall processing performance besides the lubricating performance, and the rolling performance of the product can be improved and adhesion is prevented after the stearate and the silicone oil are compounded.
The stabilizer is a polycarbodiimide hydrolysis stabilizer, and the polycarbodiimide hydrolysis stabilizer can inhibit the hydrolysis tendency of TPEE by adding the polycarbodiimide hydrolysis stabilizer, so that the stability of the disposable blood bag is improved.
The antioxidant is phosphite antioxidant, and the phosphite antioxidant is mainly used for preventing the final performance of the product from being influenced by thermal oxidation in the processing process.
The addition of the montmorillonite can provide the dimensional stability of the final product and the mechanical property of the film, and is nontoxic and harmless to human bodies.
The preparation method of the TPEE-based film material for blood bags described in the above examples 1 and 2 comprises the following steps:
step one, banburying and mixing: weighing the components according to the formula in sequence, and then placing the TPEE resin, the TPU resin, the medical plasticizer, the antioxidant, the lubricant and the hydrolysis stabilizer into an internal mixer for once internal mixing and mixing; after primary banburying, adding montmorillonite into a banbury mixer for secondary banburying and mixing;
step two, screw extrusion granulation: adding the mixed material subjected to banburying mixing in the step one into a double-screw extruder, and extruding and granulating;
step three, blow molding: drying the material obtained in the step two, and performing blow molding by using a blow molding machine to obtain a TPEE-based film semi-finished product for the blood bag;
step four, surface treatment: and (3) performing surface treatment on the semi-finished product obtained in the third step by using a glycol oligomer monomer surface treatment agent by using a plasma surface treatment machine, then washing the surface of the film by using deionized water, drying and rolling to obtain a finished film material, wherein the reason for using the glycol oligomer monomer surface treatment agent is that the glycol oligomer monomer can be grafted to the surface of the blood bag in such a way, so that the stability of the blood stored in the blood bag is improved.
Compared with the common PVC film material, the film material for the TPEE-based blood bags produced in the manner has the advantages that the prepared blood bags have good temperature tolerance, good softness can be guaranteed even at the temperature of minus 20 ℃, the blood bags are not hardened and crisp at the temperature of minus 20 ℃, processing aids such as plasticizers and the like used by the blood bag material are harmless to a human body, and the used blood bag material is easier to degrade compared with PVC.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The TPEE-based film material for the blood bag is characterized by comprising the following components in parts by mass:
100 parts of blow molding grade TPEE, 50-80 parts of TPU, 10-15 parts of plasticizer, 2-5 parts of antioxidant, 3-5 parts of lubricant, 3-5 parts of hydrolysis stabilizer and 10-20 parts of montmorillonite.
2. The TPEE-based film material for blood bags according to claim 1, wherein the TPU is a polyether type TPU.
3. The TPEE-based film material for blood bags according to claim 1, wherein the medical plasticizer is epoxidized soybean oil.
4. The TPEE-based film material for the blood bags according to claim 1, which is characterized in that the lubricant is compounded by stearate and silicone oil in a ratio of 1: 2-5.
5. The TPEE-based film material for blood bags according to claim 1, wherein said stabilizer is a polycarbodiimide hydrolysis stabilizer.
6. The TPEE-based film material for blood bags according to claim 1, wherein said antioxidant is a phosphite antioxidant.
7. A method for preparing the TPEE-based film material for the blood bags according to any one of claims 1 to 6, which is characterized by comprising the following steps:
step one, banburying and mixing: weighing the components according to the formula in sequence, and then placing the TPEE resin, the TPU resin, the medical plasticizer, the antioxidant, the lubricant and the hydrolysis stabilizer into an internal mixer for once internal mixing and mixing; after primary banburying, adding montmorillonite into a banbury mixer for secondary banburying and mixing;
step two, screw extrusion granulation: adding the mixture obtained in the step (1) after banburying mixing into a double-screw extruder, and extruding and granulating;
step three, blow molding: drying the material obtained in the step (2), and performing blow molding by using a blow molding machine to obtain a TPEE-based film semi-finished product for the blood bag;
step four, surface treatment: and (3) carrying out surface treatment on the blood bag TPEE base film by using a plasma surface treatment machine and a surface treatment agent, and then washing, drying and rolling to obtain a finished product film.
8. The method for preparing a TPEE-based film material for blood bags according to claim 7, wherein the surface treatment agent in the fourth step is a mixture of oligo monomers of ethylene glycol, propylene glycol and glycerol in any proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011420228.8A CN112852114A (en) | 2020-12-08 | 2020-12-08 | TPEE-based thin film material for blood bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011420228.8A CN112852114A (en) | 2020-12-08 | 2020-12-08 | TPEE-based thin film material for blood bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112852114A true CN112852114A (en) | 2021-05-28 |
Family
ID=75997019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011420228.8A Pending CN112852114A (en) | 2020-12-08 | 2020-12-08 | TPEE-based thin film material for blood bags |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112852114A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526368A (en) * | 2003-03-07 | 2004-09-08 | 日康兴产株式会社 | Method for producing medical container and medical container |
| CN101536961A (en) * | 2009-04-21 | 2009-09-23 | 中国科学院长春应用化学研究所 | Safe blood or blood component storage container and preparation method thereof |
| CN104194282A (en) * | 2014-08-28 | 2014-12-10 | 太仓力九和塑胶工业有限公司 | Shock absorbing material, cushion body made of same and preparation method of cushion body |
| CN104403122A (en) * | 2014-11-12 | 2015-03-11 | 无锡中科光远生物材料有限公司 | Blood stabilizer, blood bag and preparation method thereof |
| CN105400150A (en) * | 2014-09-15 | 2016-03-16 | 株洲时代新材料科技股份有限公司 | Thermoplastic polyester elastomer floor and manufacturing method thereof |
| CN107379583A (en) * | 2017-07-14 | 2017-11-24 | 北京化工大学 | A kind of polyester elastomer multi-function membrane and preparation method thereof |
| CN107429046A (en) * | 2015-02-24 | 2017-12-01 | 帝斯曼知识产权资产管理有限公司 | Roof membrane and the method for producing roof membrane |
| CN207044842U (en) * | 2017-05-11 | 2018-02-27 | 南通富华医用包装有限公司 | A kind of composite membrane for blood product packaging bag |
| CN109957215A (en) * | 2017-12-25 | 2019-07-02 | 联泓(江苏)新材料研究院有限公司 | It is a kind of for heat-resisting encapsulated thermoplastic elastic material and preparation method thereof |
-
2020
- 2020-12-08 CN CN202011420228.8A patent/CN112852114A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1526368A (en) * | 2003-03-07 | 2004-09-08 | 日康兴产株式会社 | Method for producing medical container and medical container |
| CN101536961A (en) * | 2009-04-21 | 2009-09-23 | 中国科学院长春应用化学研究所 | Safe blood or blood component storage container and preparation method thereof |
| CN104194282A (en) * | 2014-08-28 | 2014-12-10 | 太仓力九和塑胶工业有限公司 | Shock absorbing material, cushion body made of same and preparation method of cushion body |
| CN105400150A (en) * | 2014-09-15 | 2016-03-16 | 株洲时代新材料科技股份有限公司 | Thermoplastic polyester elastomer floor and manufacturing method thereof |
| CN104403122A (en) * | 2014-11-12 | 2015-03-11 | 无锡中科光远生物材料有限公司 | Blood stabilizer, blood bag and preparation method thereof |
| CN107429046A (en) * | 2015-02-24 | 2017-12-01 | 帝斯曼知识产权资产管理有限公司 | Roof membrane and the method for producing roof membrane |
| CN207044842U (en) * | 2017-05-11 | 2018-02-27 | 南通富华医用包装有限公司 | A kind of composite membrane for blood product packaging bag |
| CN107379583A (en) * | 2017-07-14 | 2017-11-24 | 北京化工大学 | A kind of polyester elastomer multi-function membrane and preparation method thereof |
| CN109957215A (en) * | 2017-12-25 | 2019-07-02 | 联泓(江苏)新材料研究院有限公司 | It is a kind of for heat-resisting encapsulated thermoplastic elastic material and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| JIE ZHANG等: "Synthesis, characterization and mechanical properties of polyester-based aliphatic polyurethane elastomers containing hyperbranched polyester segments", 《EUROPEAN POLYMER JOURNAL》 * |
| 橡胶工业原材料与装备简明手册编审委员会: "《橡胶工业原材料与装备简明手册 原材料与工艺耗材分册》", 31 January 2019, 北京理工大学出版社 * |
| 汪多仁等: "《绿色降解化学品》", 31 January 2008, 科学技术文献出版社 * |
| 王玥: "医用热塑性弹性体最新发展动向", 《世界橡胶工业》 * |
| 王驰著: "《低温等离子体表面修饰技术在催化剂材料制备中的应用》", 21 July 2017, 冶金工业出版社 * |
| 褚文娟: "高强TPEE/TPU塑料合金的制备及结构与性能研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109796734B (en) | Polylactic acid full-biodegradable composite material | |
| CN101475735B (en) | Completely biodegradable polyhydroxyalkanote / poly(butylene succinate) blending alloy | |
| US7989548B2 (en) | Thermoplastic vulcanisate blend | |
| CN111040400A (en) | Full-biodegradable sheet and preparation method thereof | |
| CN105038165B (en) | Biological base thermoplastic elastomer with shape memory function and preparation method thereof | |
| CN110564035A (en) | Ultrahigh molecular weight polyethylene composite material and preparation method thereof | |
| CN109517369A (en) | Rapid shaping nylon masterbatch and the preparation method and application thereof | |
| JP2016141814A (en) | Soft pet g resin composition and extrusion molded article using the same | |
| CN114763430A (en) | Composite degradable polymer with strong ductility and preparation method thereof | |
| CN110872418A (en) | Polypropylene composition and preparation method thereof | |
| EP0473726A1 (en) | Injection molded biodegradable starch polymer composite | |
| JPH02212142A (en) | Heat molding vinylidene chloride resin composite laminate | |
| CN112852114A (en) | TPEE-based thin film material for blood bags | |
| CN1687230A (en) | PET and PP blend modified Nano filling alloy and preparation method thereof | |
| CN102051006B (en) | Radiation-resistance high-elastic resilience polyvinyl chloride composition and preparation method thereof | |
| CN111333984A (en) | Starch-filled low-temperature water-soluble PVA composition, starch-filled low-temperature water-soluble PVA film and preparation method thereof | |
| CN113683875B (en) | Degradable high-toughness heat-resistant polylactic acid-starch composite material and preparation method thereof | |
| CN104877182A (en) | Method for preparing medical plastic | |
| CN107286612A (en) | A kind of plastic packaging bag | |
| CN113801445A (en) | High-toughness heat-resistant degradable PLA material and preparation method thereof | |
| KR100702580B1 (en) | Additive for resin and method for producing thereof | |
| CN113201211A (en) | Composite dynamic cross-linked polylactic acid/natural rubber/starch elastomer and preparation method thereof | |
| CN112457641A (en) | Completely degradable composite material prepared from microcrystalline cellulose and polylactic acid and process method thereof | |
| CN104292716B (en) | Plasticising toughened polyethylene composition and preparation method thereof | |
| JP4841869B2 (en) | Resin composition and molded body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |