CN103910938A - Low-odor polypropylene reclaimed material and preparation method thereof - Google Patents
Low-odor polypropylene reclaimed material and preparation method thereof Download PDFInfo
- Publication number
- CN103910938A CN103910938A CN201410142251.3A CN201410142251A CN103910938A CN 103910938 A CN103910938 A CN 103910938A CN 201410142251 A CN201410142251 A CN 201410142251A CN 103910938 A CN103910938 A CN 103910938A
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- starch
- low odor
- reclaimed materials
- parts
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a low-odor polypropylene reclaimed material and a preparation method thereof. The polypropylene reclaimed material comprises following components in parts by weight: 74-92 parts of a polypropylene reclaimed material, 5-20 parts of starch, 1-5 parts of a compatilizer, and 0.2-2 parts of a polypropylene universal antioxidant and a processing agent. the preparation method comprises the following steps of fully mixing all the components, then putting the mixture into a screw extruder for melt blending and pelletizing through extruding so as to obtain the low-odor polypropylene reclaimed material. As watery starch is added into the recycled polypropylene, small molecular substances capable of generating odor in the polypropylene reclaimed material is brought out from the interior of the material along with evaporation of water in the natural starch in fusion, and therefore, the prepared polypropylene reclaimed material not only has low odor, but also is greatly improved in rigidity.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of low odor polypropylene reclaimed materials and preparation method thereof.
Background technology
Along with the development of plastics industry, increasing plastic applications has arrived the various piece of life, and As time goes on, it is aging, damaged and discarded that plastics unavoidably suffer.Polypropylene is a kind of common macromolecular material, has good performance and range of application widely, and its discarded amount is also increasing year by year.In recent years, because environmental pollution, living cost, production cost and operation cost constantly rise, many enterprises are for seeking interests maximization, and the recovery that target has been put into waste or used plastics is again in modification.Generally have compared with niff but reclaim polypropylene material, its odoring substance mainly comprises the materials such as amine, sulphur class, thio-alcohol.This has limited to a certain extent and has reclaimed polyacrylic application.
The method of improving at present polypropylene material smell is mainly to use additive, and these additives are generally divided into shielded type type, physisorption type and chemical reaction type.
Shielded type: adding perfume compound in polypropylene material can cover material niff, and this method is generally applied to toy, general merchandise, cosmetics containers, daily-use electrical appliance and gardening equipment.But whether the perfume compound shelf time is depended on its aggregation extent, mass-surface ratio, is exposed to and is heated or moist environment, also have profiled member whether to carry out tight every factors such as most air-packings, and it can not fundamentally eliminate niff in salvage material.
Physisorption type: add the porous materials such as a small amount of zeolite in material, can play the effect that improves material smell.Zeolite has a large amount of crystallization cavities, and these cavities can catch those tools gas molecules odorous.Molecular adsorbent has been successfully applied to housing material and the sealing polymkeric substance of polyolefine extruding pipe material, injection and extrusion-blown modling container, barrier packaging material, extrusion moulding.Molecular adsorption powder also can be used as hygroscopic agent and adds in plastics to remove steam, and these steam also can contribute to plastics to produce smell.But this absorption is generally physical adsorption, in the time that temperature is higher, gas molecules likely can diffuse out.
Chemical reaction type: add the additive that can discharge with these small molecules reaction of smell in the middle of material prescription, reaction by between these additives and small molecules produce molecular weight large, use under thermal environment normal, as be less than 100 ℃, can from material, not evaporate the another kind of compound that produces peculiar smell, thereby reach the effect of eliminating peculiar smell.But chemical reaction type just reacts fixing for specific functional group, but for reclaiming, polypropylene smell source is complicated, content is high, is difficult to effectively fix by chemical reaction.
Summary of the invention
For solving above-mentioned the deficiencies in the prior art, primary and foremost purpose of the present invention is to provide a kind of low odor polypropylene reclaimed materials.
Another object of the present invention is to provide the preparation method of above-mentioned low odor polypropylene reclaimed materials.
The present invention is achieved through the following technical solutions:
A kind of low odor polypropylene reclaimed materials, meter by weight, comprises following component:
Polypropylene feed back: 74-92 part;
Starch: 5-20 part;
Compatilizer: 1-5 part;
Polypropylene general oxidation inhibitor and processing aid: 0.2-2 part.
Described polypropylene feed back is washing machine drum polypropylene salvage material or safety lever polypropylene salvage material.
Described starch is one or more the mixing in the natural plant starch such as W-Gum, yam starch or wheat starch, and its water ratio is 10-20%.
Described compatilizer is maleic anhydride inoculated polypropylene, and its percentage of grafting is 0.6-1.5%.
Described polypropylene general oxidation inhibitor is 1010 or 168; Described processing aid is Zinic stearas or calcium stearate.
The preparation method of low odor polypropylene reclaimed materials of the present invention, comprises the following steps:
A, polypropylene feed back, starch, compatilizer, polypropylene general oxidation inhibitor and processing aid are joined in mixing equipment by proportioning, mix;
B, said mixture material is melt extruded at 190-230 ℃ with processing units screw extrusion press, rotating speed is 50-400 rev/min;
C, extrudate are through water cooling, and pelletizing, obtains low odor polypropylene reclaimed materials.
Compared with prior art, tool has the following advantages in the present invention:
1) the present invention by adding watery starch material in recovery polypropylene, utilize the moisture in native starch to vaporize in melt-processed process, take the small-molecule substance that can produce smell in polypropylene feed back out of material internal, thereby obtain the polypropylene salvage material of low smell;
2) the prepared polypropylene salvage material of the present invention not only has low smell, and the rigidity that obtains material is improved largely.
Embodiment
Further illustrate the present invention below by embodiment, following examples are preferably embodiment of the present invention, but embodiments of the present invention are not subject to the restriction of following embodiment.
embodiment 1
Press row parts by weight and take each component:
The washing machine drum of 92 weight parts reclaims polypropylene, the yam starch (water ratio 20%) of 5 weight parts, maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of 2 weight parts;
Its preparation technology is as follows:
After above-mentioned each composition is mixed, join in twin screw extruder and extrude, the Temperature Setting of forcing machine is 200 ℃, and rotating speed is 300rpm; Extrudate is through water cooling, pelletizing, and tenacity-increased profax mixture is enhanced.Its mechanical property parameters is as shown in table 1.
embodiment 2
Press row parts by weight and take each component:
The washing machine drum of 87 weight parts reclaims polypropylene, the yam starch (water ratio 16%) of 10 weight parts, maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of 2 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
embodiment 3
Press row parts by weight and take each component:
The washing machine drum of 81 weight parts reclaims polypropylene, the yam starch (water ratio 13%) of 15 weight parts, maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of 3 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
embodiment 4
Press row parts by weight and take each component:
The washing machine drum of 74 weight parts reclaims polypropylene, the yam starch (water ratio 10%) of 20 weight parts, maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of 5 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
comparative example 1
Press row parts by weight and take each component:
The washing machine drum of 87 weight parts reclaims maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of polypropylene, 2 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
comparative example 2
Press row parts by weight and take each component:
The washing machine drum of 74 weight parts reclaims maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of polypropylene, 5 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
comparative example 3
Press row parts by weight and take each component:
The washing machine drum of 81 weight parts reclaims polypropylene, the yam starch (water ratio 5%) of 15 weight parts, maleic anhydride inoculated polypropylene (percentage of grafting 1.0%), the antioxidant 1010 of 0.5 weight part and the processing aid Zinic stearas of 0.5 weight part of 3 weight parts;
Its preparation technology is with embodiment 1, and mechanical property parameters is as shown in table 1.
Smell evaluation method and standard:
The oder levels of material is divided into by standard: 1 grade: odorlessness, and 2 grades: scent of, but non interference smell, 3 grades: there is obvious smell, but non interference smell, 4 grades: have interference smell, 5 grades: have strong interference smell, 6 grades: have insupportable smell.Concrete grammar is: by the above-mentioned 50g particle that completes granulation, put into smell bottle, put drying baker into interior 2 hours, the temperature of drying baker is arranged on (105 ± 2) ℃, and tester will be guaranteed to seal tight.Tester is cooled to (65 ± 5) ℃ after taking out from heating container, removes a little lid, by being subject to the evaluating member nose of training from bottleneck (2 ~ 3) cm distance, it is assessed.
Bending property is pressed GB/T9341-2008 test.
The bending property of table 1 various embodiments of the present invention and comparative example product and oder levels
Can find out from the performance test results of above embodiment and comparative example, add after the native starch of watery the not only smell of material to have obvious reduction, and the flexural strength of material and modulus in flexure are also significantly improved.
Claims (6)
1. a low odor polypropylene reclaimed materials, is characterized in that, meter by weight, comprises following component:
Polypropylene feed back: 74-92 part;
Starch: 5-20 part;
Compatilizer: 1-5 part;
Polypropylene general oxidation inhibitor and processing aid: 0.2-2 part.
2. low odor polypropylene reclaimed materials according to claim 1, is characterized in that, described polypropylene feed back is washing machine drum polypropylene salvage material or safety lever polypropylene salvage material.
3. low odor polypropylene reclaimed materials according to claim 1, is characterized in that, described starch is one or more the mixing in W-Gum, yam starch or wheat starch, and its water ratio is 10-20%.
4. low odor polypropylene reclaimed materials according to claim 1, is characterized in that, described compatilizer is maleic anhydride inoculated polypropylene, and its percentage of grafting is 0.6-1.5%.
5. low odor polypropylene reclaimed materials according to claim 1, is characterized in that, described polypropylene general oxidation inhibitor is 1010 or 168; Described processing aid is Zinic stearas or calcium stearate.
6. the preparation method of the low odor polypropylene reclaimed materials described in claim 1-5 any one, is characterized in that: comprise the following steps:
A, polypropylene feed back, starch, compatilizer, polypropylene general oxidation inhibitor and processing aid are joined in mixing equipment by proportioning, mix;
B, said mixture material is melt extruded at 190-230 ℃ with processing units screw extrusion press, rotating speed is 50-400 rev/min;
C, extrudate are through water cooling, and pelletizing, obtains low odor polypropylene reclaimed materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142251.3A CN103910938B (en) | 2014-04-10 | 2014-04-10 | A kind of low odor polypropylene reclaimed materials and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142251.3A CN103910938B (en) | 2014-04-10 | 2014-04-10 | A kind of low odor polypropylene reclaimed materials and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103910938A true CN103910938A (en) | 2014-07-09 |
| CN103910938B CN103910938B (en) | 2016-03-30 |
Family
ID=51036974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410142251.3A Active CN103910938B (en) | 2014-04-10 | 2014-04-10 | A kind of low odor polypropylene reclaimed materials and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103910938B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311999A (en) * | 2014-10-30 | 2015-01-28 | 苏州润佳工程塑料股份有限公司 | Low-smell polypropylene material and preparation method thereof |
| CN106750954A (en) * | 2016-12-26 | 2017-05-31 | 安徽元通采暖科技有限公司 | Antistatic modified polypropylene processing method |
| CN106995555A (en) * | 2017-03-27 | 2017-08-01 | 浙江品瑶塑业有限公司 | The high-strength polypropylene recovery material modified composite material of bloom and preparation method |
| CN108329578A (en) * | 2017-01-20 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of Low-odor polypropylene material and preparation method thereof |
| CN112500638A (en) * | 2020-11-30 | 2021-03-16 | 江苏金发科技新材料有限公司 | Low-odor good-appearance environment-friendly polypropylene material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3398860B2 (en) * | 1998-06-24 | 2003-04-21 | 株式会社プラスト | Biodegradable resin foam |
| CN1609138A (en) * | 2002-12-10 | 2005-04-27 | 细胞树脂技术有限责任公司 | Grafted cyclodextrin |
| JP3911590B2 (en) * | 2002-05-13 | 2007-05-09 | 株式会社昭和丸筒 | Method for producing resin molded product containing natural fiber such as waste paper and composition for producing the molded product |
| US20090048368A1 (en) * | 2007-08-13 | 2009-02-19 | Bash Thomas F | Polyolefin compositions comprising bio-based starch materials |
| CN102604231A (en) * | 2012-03-29 | 2012-07-25 | 广州市塑料工业股份有限公司 | Degradable environment-friendly plastic and preparation method of degradable environment-friendly plastic |
| CN103044793A (en) * | 2011-10-17 | 2013-04-17 | 金发科技股份有限公司 | Low-odor low-VOC (volatile organic compound)-content styrene polymer composition and preparation method thereof |
-
2014
- 2014-04-10 CN CN201410142251.3A patent/CN103910938B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3398860B2 (en) * | 1998-06-24 | 2003-04-21 | 株式会社プラスト | Biodegradable resin foam |
| JP3911590B2 (en) * | 2002-05-13 | 2007-05-09 | 株式会社昭和丸筒 | Method for producing resin molded product containing natural fiber such as waste paper and composition for producing the molded product |
| CN1609138A (en) * | 2002-12-10 | 2005-04-27 | 细胞树脂技术有限责任公司 | Grafted cyclodextrin |
| US20090048368A1 (en) * | 2007-08-13 | 2009-02-19 | Bash Thomas F | Polyolefin compositions comprising bio-based starch materials |
| CN103044793A (en) * | 2011-10-17 | 2013-04-17 | 金发科技股份有限公司 | Low-odor low-VOC (volatile organic compound)-content styrene polymer composition and preparation method thereof |
| CN102604231A (en) * | 2012-03-29 | 2012-07-25 | 广州市塑料工业股份有限公司 | Degradable environment-friendly plastic and preparation method of degradable environment-friendly plastic |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104311999A (en) * | 2014-10-30 | 2015-01-28 | 苏州润佳工程塑料股份有限公司 | Low-smell polypropylene material and preparation method thereof |
| CN106750954A (en) * | 2016-12-26 | 2017-05-31 | 安徽元通采暖科技有限公司 | Antistatic modified polypropylene processing method |
| CN108329578A (en) * | 2017-01-20 | 2018-07-27 | 合肥杰事杰新材料股份有限公司 | A kind of Low-odor polypropylene material and preparation method thereof |
| CN106995555A (en) * | 2017-03-27 | 2017-08-01 | 浙江品瑶塑业有限公司 | The high-strength polypropylene recovery material modified composite material of bloom and preparation method |
| CN112500638A (en) * | 2020-11-30 | 2021-03-16 | 江苏金发科技新材料有限公司 | Low-odor good-appearance environment-friendly polypropylene material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103910938B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103910938B (en) | A kind of low odor polypropylene reclaimed materials and preparation method thereof | |
| CN103923412B (en) | PVC sealing strip and application thereof | |
| CN104311999B (en) | A kind of Low-odor polypropylene material and preparation method thereof | |
| CN104109362A (en) | Environment-friendly biodegradable film for fruit and vegetable packaging and preparation method of film | |
| CN108410080A (en) | A kind of environment-friendly PVC edge sealing strip material and preparation method thereof of low VOC, low smell | |
| CN101412828B (en) | Modified polypropylene composition and preparation thereof | |
| CN105440399A (en) | Polyvinyl wood-plastic composite and preparation method thereof | |
| CN103524872B (en) | A kind of Low-odor polypropylene recovery material and preparation method thereof | |
| CN109486160B (en) | Fragrant PC/ABS functional master batch with flocking simulating effect and preparation method of composite material thereof | |
| CN105385152A (en) | Low-emission high-heat-resistant polyamide composite material and preparation method thereof | |
| CN109852076B (en) | Low-odor low-VOC modified thermoplastic elastomer material and preparation method thereof | |
| Garofalo et al. | Zeolites as effective desiccants to solve hygroscopicity issue of post-consumer mixed recycled polyolefins | |
| CN103131149A (en) | Polylactic acid composite material, preparation method thereof and application thereof | |
| CN102093682A (en) | Light polylactic acid composite material and preparation method thereof | |
| CN104151853B (en) | A kind of preparation method of Recycled Wood-Plastic Composite | |
| CN109206806A (en) | A kind of preparation method of the plastic foil of macromolecule waterproof and breathable | |
| JP6992319B2 (en) | Hygroscopic antibacterial resin composition and molded product | |
| CN105985657A (en) | Antimicrobial degradable plastic masterbatch | |
| CN108178903A (en) | A kind of polyesters composite material of antistatic, automatic colour developing colour change function and preparation method thereof | |
| CN104311955A (en) | Anti-caking moisture-absorbing film material for citric acid packaging | |
| CN105255008A (en) | Synergetic odor inhibition type waste PCB powder/waste PP regenerated composite material and preparation method thereof | |
| CN109401267A (en) | A kind of high-strength heatproof PC/ABS plastics and preparation method thereof | |
| CN109054237A (en) | A method of polyvinyl chloride melt adherency in cleaning torque rheometer mixer | |
| CN105111585A (en) | Polypropylene washing machine powder filling granules for recovery and preparation method thereof | |
| CN109912918A (en) | A kind of modified thermoplastic rubber synthesising biological composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |