CN117186599B - A calendered PETG smart card substrate and preparation method thereof - Google Patents
A calendered PETG smart card substrate and preparation method thereofInfo
- Publication number
- CN117186599B CN117186599B CN202311192365.4A CN202311192365A CN117186599B CN 117186599 B CN117186599 B CN 117186599B CN 202311192365 A CN202311192365 A CN 202311192365A CN 117186599 B CN117186599 B CN 117186599B
- Authority
- CN
- China
- Prior art keywords
- petg
- parts
- calendered
- smart card
- card substrate
- 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.)
- Active
Links
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
本发明涉及高分子材料技术领域，具体涉及一种压延PETG智能卡基材及其制备方法，包括PETG树脂100份、钛白粉6‑12份、高效润滑剂0.3‑1.2份、E蜡0.1‑0.5份、抗氧剂0.5‑1份、紫外线吸收剂0.1‑0.5份和抗静电剂0.1‑0.5份，通过高效润滑剂与E蜡组合使用，替代了ADD2颗粒，粉体更容易分散均匀，且高效润滑剂特殊的超支化端羟基结构可以与PETG发生接枝反应，起到促进分子链运动的作用，从而起到内润滑作用，提升了PETG的塑化效果，接枝后的润滑剂不会发生析出，使得表面张力保持≥37达因；通过润滑剂、E蜡与钛白粉等粉体的预混合，使得粉体表面得到活化处理，解决了整体混合不均团聚问题。解决了PETG智能卡基材中的ADD2颗粒助剂会导致的塑化、团聚以及辊面析出的问题。
The present invention relates to the technical field of polymer materials, and in particular to a calendered PETG smart card substrate and a preparation method thereof, comprising 100 parts of PETG resin, 6-12 parts of titanium dioxide, 0.3-1.2 parts of high-efficiency lubricant, 0.1-0.5 parts of E wax, 0.5-1 parts of antioxidant, 0.1-0.5 parts of ultraviolet absorber and 0.1-0.5 parts of antistatic agent, by combining high-efficiency lubricant with E wax, ADD2 particles are replaced, powder is more easily dispersed and uniform, and the special hyperbranched terminal hydroxyl structure of the high-efficiency lubricant can be grafted with PETG to promote the motion of molecular chains, thereby playing an internal lubricating role, improving the plasticizing effect of PETG, and the grafted lubricant will not precipitate, so that the surface tension remains ≥37 dynes; by pre-mixing of powders such as lubricant, E wax and titanium dioxide, the powder surface is activated, and the overall mixing uneven agglomeration problem is solved. The problem of plasticization, agglomeration and roller surface precipitation caused by the ADD2 particle auxiliary agent in the PETG smart card substrate is solved.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a calendaring PETG smart card substrate and a preparation method thereof.
Background
PETG (polyethylene terephthalate-1, 4-cyclohexanedimethanol ester) is an amorphous copolyester, and the product is highly transparent and has excellent impact resistance, thus being widely applied to markets such as plates, sheets, high-performance shrink films, bottles, profiled bars and the like.
In recent years, due to environmental protection requirement limitation, a downstream card making unit tries to convert the original oily solvent ink into water-based ink, so that higher requirements are put forward on the surface effect and the surface wetting tension of PETG, the original standard surface tension is more than or equal to 35 dynes, and new printing requirements cannot be met, and tests find that the surface tension is more than or equal to 37 dynes. At present, the production process of the PETG smart card substrate is mainly a calendaring process. At present, the main problem of PETG calendaring production is that the production qualification rate is not high, the qualification rate of a 60-150 mu m film is 80% according to internal statistics, the qualification rate of a thick sheet with the thickness of more than 330 mu m is only 67%, and the production efficiency is seriously affected. The defects are found by classification to be mainly reflected in apparent impurities and disqualification of wetting tension. Firstly, the problems of impurities mainly include external pollution, powder agglomeration and unplasticized substances, especially impurities with a thickness of more than 330 μm, and secondly, the surface roughness of the material is changed due to the white fog-like precipitates on the roller surface, so that the wetting tension is disqualified (< 35 dyne). For this reason, we found that the main problem is the addition of ADD2 granule adjuvants.
How to solve the problems of plasticization, agglomeration and roll surface precipitation caused by the addition of ADD2 is the key point and the difficulty of the current PETG calendering production.
Disclosure of Invention
The invention aims to provide a calendaring PETG smart card substrate and a preparation method thereof, and aims to solve the problems of plasticization, agglomeration and roll surface precipitation caused by an ADD2 particle auxiliary agent in the PETG smart card substrate.
In order to achieve the aim, in a first aspect, the invention provides a calendered PETG smart card substrate, which comprises 100 parts of PETG resin, 6-12 parts of titanium dioxide, 0.3-1.2 parts of efficient lubricant, 0.1-0.5 part of E wax, 0.5-1 part of antioxidant, 0.1-0.5 part of ultraviolet absorbent and 0.1-0.5 part of antistatic agent.
Wherein the PETG resin is one or a combination of the ground materials of GS2, S2008 and K2012;
the titanium dioxide is rutile titanium dioxide;
the efficient lubricant is one or a combination of HyperC182, hyperC182,182D.
The E wax is Kelain Licowax E;
the antioxidant is a combination of an antioxidant 1010 and an antioxidant 168;
the ultraviolet absorber is basf T234;
the antistatic agent is nano tin antimony oxide.
In a second aspect, the invention provides a method for preparing a calendered PETG smart card substrate, comprising the steps of:
Stirring titanium dioxide, an antioxidant, an ultraviolet absorbent and an antistatic agent at a first rotating speed according to a proportion, adding an efficient lubricant and E wax while stirring, and stirring for 5min at a second rotating speed after the addition is completed, wherein the temperature is controlled below 90 ℃ to obtain a first mixture;
Stirring the first mixture by using the first rotating speed, adding PETG resin while stirring, and stirring for 10min by using a second rotating speed after the addition is completed, wherein the temperature is controlled below 90 ℃ to obtain a second mixture;
and cooling the second mixture, and then extruding, calendaring, drawing off and cooling to obtain the calendared PETG smart card substrate.
Wherein, after cooling the second mixture, extruding, calendaring, leading away and cooling to obtain the calendared PETG smart card substrate, comprising:
Cooling the second mixture, and feeding the cooled second mixture into a planetary extruder;
extruding by an extruder of the planetary extruder to obtain an extrusion raw material;
calendering by a calendering roller of the planetary extruder to obtain a calendered raw material;
the separation is carried out by a separation roller of the calendaring roller, so as to obtain a separation raw material;
and cooling the lead-away raw material to obtain the calendered PETG smart card substrate.
Wherein the temperature of the extruder is 150-200 ℃, the temperature of the calendaring roller is 120-180 ℃, and the temperature of the leading-out roller is 60-120 ℃.
The preparation method of the calendered PETG smart card substrate comprises 100 parts of PETG resin, 6-12 parts of titanium dioxide, 0.3-1.2 parts of high-efficiency lubricant, 0.1-0.5 part of E wax, 0.5-1 part of antioxidant, 0.1-0.5 part of ultraviolet absorber and 0.1-0.5 part of antistatic agent, the high-efficiency lubricant and the E wax are combined to use, so that high-addition ADD2 particles are replaced, the powder is easier to disperse uniformly, the special hyperbranched hydroxyl structure of the high-efficiency lubricant can be subjected to grafting reaction with the PETG, the effect of promoting molecular chain movement is achieved, the internal lubrication effect is achieved, the plasticizing effect of the PETG is improved, the grafted lubricant can not be separated out, the surface tension is not smaller than or equal to 37 dynes, the addition of trace E wax enables the PETG to have a good anti-sticking effect, the problem of printing and tension is solved, and the whole powder surface is not mixed uniformly by premixing the lubricant, the E wax and the like powder is enabled to be subjected to the activation agglomeration. The preparation method provided by the invention is simple and feasible, the product meets the new requirement of downstream water-based printing, replaces imported expensive ADD2 auxiliary agent, saves cost, greatly improves the qualification rate of the product, and has huge application prospect in the fields of PETG certificates, smart cards and the like. The problems of plasticization, agglomeration and roll surface precipitation caused by ADD2 particle additives in a PETG smart card substrate are solved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for preparing a calendered PETG smart card substrate provided by the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In a first aspect, the invention provides a calendered PETG smart card substrate, comprising 100 parts of PETG resin, 6-12 parts of titanium dioxide, 0.3-1.2 parts of efficient lubricant, 0.1-0.5 part of E wax, 0.5-1 part of antioxidant, 0.1-0.5 part of ultraviolet absorbent and 0.1-0.5 part of antistatic agent.
Further, the PETG resin is one or a combination of the ground materials of GS2, S2008 and K2012;
the titanium dioxide is rutile titanium dioxide;
the efficient lubricant is one or a combination of HyperC182, hyperC182,182D.
The E wax is Kelain Licowax E;
the antioxidant is a combination of an antioxidant 1010 and an antioxidant 168;
the ultraviolet absorber is basf T234;
the antistatic agent is nano tin antimony oxide.
Specifically, the efficient lubricant powder is combined with the E wax to replace ADD2 particles with high addition, the powder is easier to disperse uniformly, a special hyperbranched hydroxyl-terminated structure of the efficient lubricant powder can be subjected to grafting reaction with the PETG to play a role in promoting molecular chain movement, so that an internal lubricating effect is achieved, the plasticizing effect of the PETG is improved, the grafted lubricant cannot be separated out, the surface tension is kept to be more than or equal to 37 dynes, the PETG has a good roller anti-sticking effect due to the addition of trace E wax, the problem of continuous printing is solved due to the addition of an antistatic agent, and the powder surface is activated through the premixing of the lubricant, the E wax, the titanium pigment and other powder, so that the problem of uneven aggregation of the whole mixture is solved. The preparation method provided by the invention is simple and feasible, the product meets the new requirement of downstream water-based printing, replaces imported expensive ADD2 auxiliary agent, saves cost, greatly improves the qualification rate of the product, and has huge application prospect in the fields of PETG certificates, smart cards and the like. The problems of plasticization, agglomeration and roll surface precipitation caused by ADD2 particle additives in a PETG smart card substrate are solved.
Referring to fig. 1, in a second aspect, the present invention provides a method for preparing a rolled PETG smart card substrate, comprising the steps of:
s1, stirring titanium dioxide, an antioxidant, an ultraviolet absorbent and an antistatic agent at a first rotating speed according to a proportion, adding an efficient lubricant and E wax while stirring, stirring for 5min at a second rotating speed after the addition is finished, and controlling the temperature below 90 ℃ to obtain a first mixture;
specifically, 6-12 parts of titanium dioxide, 0.3-1.2 parts of high-efficiency lubricant, 0.1-0.5 part of E wax, 0.5-1 part of antioxidant, 0.1-0.5 part of ultraviolet absorber and 0.1-0.5 part of antistatic agent.
S2, stirring the first mixture by using the first rotating speed, adding PETG resin while stirring, stirring for 10min by using the second rotating speed after the addition is completed, and controlling the temperature below 90 ℃ to obtain a second mixture;
Specifically, the PETG resin is 100 parts. The first rotating speed is low, stirring is performed in the low-speed stirring kettle during low-speed stirring, the second rotating speed is high, and stirring is performed in the high-speed stirring kettle during high-speed stirring.
And S3, cooling the second mixture, and then extruding, calendaring, drawing off and cooling to obtain the calendared PETG smart card substrate.
The method comprises the steps of discharging the second mixture in a high-speed stirring kettle, cooling, feeding into a planetary extruder, extruding by the extruder of the planetary extruder to obtain an extruded raw material, rolling by a rolling roller of the planetary extruder to obtain a rolled raw material, conducting separation by a separation roller of the rolling roller to obtain a separation raw material, and cooling the separation raw material to obtain the rolled PETG smart card substrate. The temperature of the extruder is 150-200 ℃, the temperature of the calendaring roller is 120-180 ℃, and the temperature of the drawing roller is 60-120 ℃.
Example 1
Weighing the following raw materials according to the formula proportion:
100 parts of GS2 resin;
12 parts of rutile titanium dioxide;
HyperC182 parts by weight;
0.1 part of Kelaien Licowax E;
antioxidant 1010/168.5 parts;
0.5 parts of ultraviolet absorber T234;
0.1 part of nano tin antimony oxide;
the preparation of the membrane is carried out according to the following steps:
1) The titanium dioxide, the antioxidant, the ultraviolet absorbing and the nano tin antimony oxide agent are put into a high-speed mixer according to the proportion, the high-efficiency lubricant and the E wax are added while the low-speed mixer is firstly carried out, the high-speed mixer is started for 5 minutes after the high-speed mixer is added, the temperature is controlled to be below 90 ℃, then the main material PETG powder is added after the low-speed mixer is carried out, the high-speed mixer is started for 10 minutes, the powder temperature is controlled to be below 90 ℃, and the paste is prevented.
2) Discharging the raw materials in the high-speed stirring kettle out of the low-speed stirring kettle, cooling, feeding into a planetary extruder, extruding, calendaring, drawing off, and cooling to obtain a diaphragm with a certain thickness.
The process temperatures in step 2) are respectively 150 ℃ of the extruder, 1# 180 ℃, 2# 180 ℃, 3# 170 ℃, 4# 165 ℃, 5# 120 ℃, and the drawing roller temperatures are 1# 120 ℃, 2# 110 ℃, 3# 100 ℃, 4# 80 ℃ and 5# 60 ℃.
Example 2
Weighing the following raw materials according to the formula proportion:
100 parts of S2008 resin;
6 parts of rutile type titanium dioxide;
HyperC182D 1.2 parts;
0.5 parts of Kelaien Licowax E;
1010/168 parts of antioxidant;
0.5 parts of ultraviolet absorber T234;
0.3 parts of nano tin antimony oxide;
the preparation of the membrane is carried out according to the following steps:
1) The titanium dioxide, the antioxidant, the ultraviolet absorbent and the nano tin antimony oxide are put into a high-speed mixer according to the proportion, the high-efficiency lubricant and E wax are added while mixing at a low speed, the high-speed mixer is started for 5 minutes after the addition, the temperature is controlled below 90 ℃, then the main material PETG powder is added while mixing at a low speed, the high-speed mixer is started for 10 minutes, the powder temperature is controlled below 90 ℃, and the paste is prevented.
2) Discharging the raw materials in the high-speed stirring kettle out of the low-speed stirring kettle, cooling, feeding into a planetary extruder, extruding, calendaring, drawing off, and cooling to obtain a diaphragm with a certain thickness.
The process temperatures in step 2) are respectively 200 ℃ of the extruder, 1# 180 ℃, 2# 180 ℃, 3# 170 ℃, 4# 165 ℃, 5# 120 ℃, and the drawing roller temperatures are 1# 120 ℃, 2# 110 ℃, 3# 100 ℃, 4# 80 ℃ and 5# 60 ℃.
Example 3
Weighing the following raw materials according to the formula proportion:
100 parts of K2012 resin;
8 parts of rutile type titanium dioxide;
HyperC182 parts by weight;
0.5 parts of Kelaien Licowax E;
antioxidant 1010/168.5 parts;
0.5 parts of ultraviolet absorber T234;
0.5 part of nano tin antimony oxide;
the preparation of the membrane is carried out according to the following steps:
1) The titanium dioxide, the antioxidant, the ultraviolet absorbent and the nano tin antimony oxide are put into a high-speed mixer according to the proportion, the high-efficiency lubricant and E wax are added while mixing at a low speed, the high-speed mixer is started for 5 minutes after the addition, the temperature is controlled below 90 ℃, then the main material PETG powder is added while mixing at a low speed, the high-speed mixer is started for 10 minutes, the powder temperature is controlled below 90 ℃, and the paste is prevented.
2) Discharging the raw materials in the high-speed stirring kettle out of the low-speed stirring kettle, cooling, feeding into a planetary extruder, extruding, calendaring, drawing off, and cooling to obtain a diaphragm with a certain thickness.
The process temperatures in step 2) are 180 ℃ of the extruder, 180 ℃ of the calender roll, 170 ℃ of the calender roll, 165 ℃ of the calender roll, 120 ℃ of the calender roll, 110 ℃ of the calender roll, 100 ℃ of the calender roll, 80 ℃ of the calender roll, and 60 ℃ of the calender roll.
Example 4
Weighing the following raw materials according to the formula proportion:
100 parts of GS2 resin;
12 parts of rutile titanium dioxide;
HyperC182D 1.2 parts;
0.5 parts of Kelaien Licowax E;
antioxidant 1010/168.5 parts;
0.5 parts of ultraviolet absorber T234;
0.1 part of nano tin antimony oxide;
the preparation of the membrane is carried out according to the following steps:
1) The titanium dioxide, the antioxidant, the ultraviolet absorbing and the nano tin antimony oxide agent are put into a high-speed mixer according to the proportion, the high-efficiency lubricant and the E wax are added while the low-speed mixer is firstly carried out, the high-speed mixer is started for 5 minutes after the high-speed mixer is added, the temperature is controlled to be below 90 ℃, then the main material PETG powder is added after the low-speed mixer is carried out, the high-speed mixer is started for 10 minutes, the powder temperature is controlled to be below 90 ℃, and the paste is prevented.
2) Discharging the raw materials in the high-speed stirring kettle out of the low-speed stirring kettle, cooling, feeding into a planetary extruder, extruding, calendaring, drawing off, and cooling to obtain a diaphragm with a certain thickness.
The process temperatures in step 2) are 180 ℃ of the extruder, 180 ℃ of the calender roll, 170 ℃ of the calender roll, 165 ℃ of the calender roll, 120 ℃ of the calender roll, 110 ℃ of the calender roll, 100 ℃ of the calender roll, 80 ℃ of the calender roll, and 60 ℃ of the calender roll.
According to the technical routes of the patent CN1594430A and the patent CN1712211A, performance tests are carried out on the products and the products of the examples 1-4, the comparison shows that the impurity number of the examples is obviously reduced, the plasticization and agglomeration phenomenon of the examples are reduced under the condition of discharging external pollution, the efficient dispersion and internal lubrication are realized by adding the efficient lubricant and E wax, the volume resistance of the material is effectively reduced by adding the nano tin antimony oxide, the roll surface precipitation can be kept no in the examples 1-4 after 72 hours of continuous production, the higher wetting tension (more than or equal to 37) and the surface roughness of the products are maintained, and the printing performance of the products is obviously improved. In conclusion, the efficient lubricant and the E wax replace the ADD2 auxiliary agent to have obvious performance advantages.
Table 1PETG performance test
Note that, the surface tension and the surface roughness are the average values of the test results after 72 hours of continuous production.
The invention uses the powder high-efficiency lubricant and the E wax in combination, replaces the ADD2 particles with high addition, is easier to disperse uniformly, has a special hyperbranched hydroxyl-terminated structure, can perform grafting reaction with the PETG, plays a role in promoting molecular chain movement, plays a role in internal lubrication, improves the plasticizing effect of the PETG, does not separate out the grafted lubricant, ensures that the surface tension is more than or equal to 37 dynes, ensures that the PETG has a better anti-sticking roller effect due to the addition of trace E wax, solves the problem of printing continuous tension, and ensures that the surface of the powder is activated through the premixing of the lubricant, the E wax, the titanium pigment and other powder, thereby solving the problem of integral uneven mixing agglomeration. The preparation method provided by the invention is simple and feasible, the product meets the new requirement of downstream water-based printing, replaces imported expensive ADD2 auxiliary agent, saves cost, greatly improves the qualification rate of the product, and has huge application prospect in the fields of PETG certificates, smart cards and the like. The problems of plasticization, agglomeration and roll surface precipitation caused by ADD2 particle additives in a PETG smart card substrate are solved.
The above disclosure is only illustrative of a rolled PETG smart card substrate and a method for making the same, but is not intended to limit the scope of the invention, those skilled in the art will recognize that the full or partial flow of the embodiments described above can be practiced and equivalent variations of the embodiments of the present invention are within the scope of the appended claims.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311192365.4A CN117186599B (en) | 2023-09-14 | 2023-09-14 | A calendered PETG smart card substrate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311192365.4A CN117186599B (en) | 2023-09-14 | 2023-09-14 | A calendered PETG smart card substrate and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117186599A CN117186599A (en) | 2023-12-08 |
| CN117186599B true CN117186599B (en) | 2025-09-23 |
Family
ID=88995821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311192365.4A Active CN117186599B (en) | 2023-09-14 | 2023-09-14 | A calendered PETG smart card substrate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117186599B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118599153B (en) * | 2024-05-27 | 2025-04-29 | 公安部第一研究所 | A toughened and reinforced PETG film and its preparation method and use |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524399A (en) * | 2015-12-29 | 2016-04-27 | 银禧工程塑料（东莞）有限公司 | A kind of 3D printing polymer material and preparation method thereof |
| CN113583439A (en) * | 2021-06-01 | 2021-11-02 | 金旸（厦门）新材料科技有限公司 | Permanent antistatic semi-aromatic polyamide material capable of being used under high-pressure condition |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7273894B2 (en) * | 2003-12-02 | 2007-09-25 | Eastman Chemical Company | Compositions for the preparation of void-containing articles |
| CN1276026C (en) * | 2004-06-21 | 2006-09-20 | 李振斌 | PETG card-base for resident identity card and process for preparing same |
| CN100503218C (en) * | 2004-06-23 | 2009-06-24 | 上海达凯塑胶有限公司 | Forming method for production of copolyester sheet for documents |
| CN111100438A (en) * | 2018-10-26 | 2020-05-05 | 汉达精密电子(昆山)有限公司 | A high fluidity flame retardant PC material and its products |
| CN116135941B (en) * | 2023-03-16 | 2025-10-28 | 江苏华信新材料股份有限公司 | Photovoltaic encapsulation film and preparation method thereof |
-
2023
- 2023-09-14 CN CN202311192365.4A patent/CN117186599B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524399A (en) * | 2015-12-29 | 2016-04-27 | 银禧工程塑料（东莞）有限公司 | A kind of 3D printing polymer material and preparation method thereof |
| CN113583439A (en) * | 2021-06-01 | 2021-11-02 | 金旸（厦门）新材料科技有限公司 | Permanent antistatic semi-aromatic polyamide material capable of being used under high-pressure condition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117186599A (en) | 2023-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69919450T2 (en) | Aromatic liquid crystalline polyesters and resin composition made therefrom | |
| CN107365482B (en) | A kind of special reinforced toughened anti-reflection master batch of ultra-thin whole life cycle design | |
| EP1742990A1 (en) | Dispersing agent for pigment concentrates, use thereof and master batches containing the dispersing agent | |
| CN117186599B (en) | A calendered PETG smart card substrate and preparation method thereof | |
| CN103360695A (en) | Durable polyvinyl chloride salt membrane composition and preparation method thereof | |
| CN104371296B (en) | Poly-methyl ethylene carbonate composition and preparation method thereof | |
| CN107418159B (en) | BOPET ultraviolet screener master batch and its manufacturing method | |
| CN113861636A (en) | High-stiffness high-toughness fully-degradable PBAT/PLA resin composition and preparation method thereof | |
| CN112029173A (en) | Polyethylene breathable film and preparation method thereof | |
| CN111978644A (en) | Polypropylene breathable film and preparation method thereof | |
| CN103360732A (en) | Alloy for recovering polyethylene glycol terephthalate/acrylonitrile-butadiene-styrene copolymer and preparation method thereof | |
| CN108690336B (en) | Biodegradable polylactic acid agricultural mulching film and processing technology thereof | |
| CN112812512A (en) | Material for non-transparent degradable plastic bag and preparation method thereof | |
| CN1225500C (en) | Polyvinyl chloride and superfine polycaprolactam eutectic materials and method for preparing same | |
| CN107459735A (en) | Environment-protective polychloroethylene material composition and its preparation method and application | |
| CN113321962B (en) | Antistatic powder coating and preparation method thereof | |
| CN104278350A (en) | Preparation method of antistatic nano titanium dioxide composite polyester monofilament | |
| CN112852121B (en) | A kind of conductive master batch for PET sheet and its preparation method and application | |
| CN113462263A (en) | Ultrahigh-hardness ceramic powder coating and production process thereof | |
| CN114889283B (en) | BOPET film with high adhesive strength and used for primer-free precoating film and preparation method thereof | |
| CN112646323B (en) | Low-glossiness matte polyester film and preparation method thereof | |
| CN112280298B (en) | Preparation method of high-impact polyvinyl alcohol/polyetherimide composite material | |
| CN115352104A (en) | A preparation method of graphene/polytetrafluoroethylene nanocomposite film split fiber | |
| CN117645774A (en) | Preparation method of PET black master batch with high barrier property and high dispersibility | |
| CN114933774B (en) | Low-gloss permanent antistatic ABS composite material and preparation method and application thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |