CN115505233B - Biomass modified ABS foaming material and preparation method thereof - Google Patents
Biomass modified ABS foaming material and preparation method thereof Download PDFInfo
- Publication number
- CN115505233B CN115505233B CN202211193067.2A CN202211193067A CN115505233B CN 115505233 B CN115505233 B CN 115505233B CN 202211193067 A CN202211193067 A CN 202211193067A CN 115505233 B CN115505233 B CN 115505233B
- Authority
- CN
- China
- Prior art keywords
- abs
- filler
- parts
- preparation
- biomass
- 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
- 238000005187 foaming Methods 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 title claims abstract description 38
- 239000002028 Biomass Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical class C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims abstract description 72
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 62
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims abstract description 62
- 239000000945 filler Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000008187 granular material Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000008188 pellet Substances 0.000 claims abstract description 5
- 235000007688 Lycopersicon esculentum Nutrition 0.000 claims description 17
- 240000003768 Solanum lycopersicum Species 0.000 claims description 17
- 239000007822 coupling agent Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000012745 toughening agent Substances 0.000 claims description 9
- 239000006261 foam material Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical group CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013736 caramel Nutrition 0.000 abstract description 2
- 235000009508 confectionery Nutrition 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003205 fragrance Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 8
- 239000004088 foaming agent Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007400 DNA extraction Methods 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- 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
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
- C08J2355/02—Acrylonitrile-Butadiene-Styrene [ABS] 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
- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a biomass modified ABS foaming material and a preparation method thereof, wherein the foaming material comprises the following components in parts by weight: 85-97 parts of acrylonitrile-butadiene-styrene copolymer (ABS) pellets; 3-15 parts of waste biomass filler, and 100 parts of total amount of ABS and waste biomass filler. The preparation method comprises the following steps: crushing the waste biomass filler to 200 meshes; then further crushing into superfine filler powder by using a superfine crusher; the prepared superfine filler powder is placed for 1 to 2 weeks in a sealed and light-proof way; uniformly mixing acrylonitrile-butadiene-styrene copolymer (ABS) granules and ultrafine filler powder; and (3) introducing the uniformly mixed mixture into a co-rotating double-screw extruder for extrusion, forming wires and then granulating. The foaming material and the preparation method thereof can realize the foaming effects of no need of reducing ABS molding processing temperature, simple process, low cost, environmental protection and high efficiency, can emit caramel sweet fragrance in the process of preparing the novel composite material, and are nontoxic and harmful.
Description
Technical Field
The invention relates to the technical field of polymer foaming materials, in particular to a biomass modified ABS foaming material and a preparation method thereof.
Background
The foaming material plays an important role in the application in various fields because of the advantages of light weight, good flexibility, excellent mechanical property and the like. With the development and application of new materials and new technologies, innovative research and application of foaming materials become research hotspots at home and abroad.
Common foaming materials are divided into two major types of soft foaming materials and structural foaming materials, wherein the soft foaming materials comprise Polyurethane (PU), polystyrene (PS) and polyolefin (PP, PVC, PE, EVA), and the structural foaming materials comprise PVC, PET, PMI, SAN, PEI, PI, PUR and the like.
ABS is a general plastic, has excellent mechanical property, better fluidity and thermal stability and wide application range, but the ABS foaming material can not realize large-scale industrialization so far, mainly because the development difficulty of the ABS foaming material is higher at present, and especially related core technology is not formed at home, and meanwhile, the ABS foaming process is mainly concentrated in intermittent kettle pressure foaming, mould pressing foaming, physical foaming and chemical foaming processes. The intermittent kettle pressure foaming and the mould pressing foaming have the advantages of less control parameters, easier control of the size of the foam holes, easy analysis of the influence of the processing process on the structure and the performance, but long preparation period and low efficiency, and are only suitable for theoretical research. The physical foaming process has complex equipment, large investment, high manufacturing cost and complex operation process. Compared with the former three foaming processes, the chemical foaming process is more complex, mainly because the ABS molding processing temperature is generally 210-230 ℃, and the existing foaming agent is decomposed in the temperature range, so that more difficulties exist in preparing the ABS foaming material. In addition, the considerable unpleasant odor that is emitted during the molding process of ABS foam is a problem.
Therefore, an ABS foam composite material that is environmentally friendly, low in production cost, and simple in preparation process is desired in the art.
Disclosure of Invention
The invention aims to solve the problems that in the prior art for preparing an ABS foaming material, ABS molding processing temperature needs to be reduced, foaming multiplying power is low, preparation process is complex, investment cost is high, and a large amount of unpleasant smell is emitted in the ABS foaming material molding processing, and provides an ABS foaming material modified by using waste biomass filler and a preparation method thereof.
The technical scheme for solving the technical problems is as follows.
In a first aspect, the invention provides a biomass modified ABS foaming material, which comprises the following components in parts by weight: 85-97 parts of acrylonitrile-butadiene-styrene copolymer (ABS) pellets; 3-15 parts of waste biomass filler, and 100 parts of total amount of ABS and waste biomass filler.
Further, the waste biomass filler is tomato pomace.
Further, the ABS foam material further includes: 1-5 parts of coupling agent.
Preferably, the coupling agent is KH-550.
Further, the ABS foam material further includes: 1-5 parts of toughening agent.
Preferably, the toughening agent is n-butyl citrate.
Preferably, the ABS foaming material comprises the following components in parts by weight: 90 parts of acrylonitrile-butadiene-styrene copolymer (ABS) pellets; 10 parts of waste biomass filler; 1 part of a coupling agent; 1 part of toughening agent.
In a second aspect, the invention also provides a preparation method of the biomass modified ABS foaming material, which comprises the following steps:
(1) The preparation method comprises the steps of (1) preparing materials according to the weight parts of an ABS foaming material, and crushing waste biomass filler to 200 meshes;
(2) Further crushing the biomass filler with 200 meshes into superfine filler powder by using an superfine crusher;
(3) The prepared superfine filler powder is placed for 1 to 2 weeks in a sealed and light-proof way;
(4) Uniformly mixing acrylonitrile-butadiene-styrene copolymer (ABS) granules and ultrafine filler powder;
(5) And (3) introducing the uniformly mixed mixture into a co-rotating double-screw extruder for extrusion, and simultaneously feeding the extruded polymer melt into a cooling and drying device for cooling and drying to form a wire material and then granulating.
Further, the parameters of the superfine pulverizer in the step (2) are controlled as follows: the crushing time is 90min, the frequency is 50Hz, and the temperature is between 10 ℃ below zero and 0 ℃.
Further, parameters of the co-rotating twin-screw extruder in the step (5) are controlled as follows: the temperature of the feeding section is 180-195 ℃, the temperature of the mixing section is 195-210 ℃, the temperature of the extruding section is 220 ℃, and the temperature of the machine head is 210 ℃.
Further, the preparation method further comprises the following steps: and (3) further adding a coupling agent and a toughening agent in the step (4) and uniformly mixing.
The invention has the beneficial effects that:
(1) The waste biomass filler has wide sources, particularly tomato pomace, is used for filling and modifying ABS, is beneficial to reducing the preparation cost of the ABS foaming composite material, and the obtained ABS foaming material is a novel environment-friendly and efficient foaming agent, and can replace physical foaming agents and chemical foaming agents which are harmful to the environment.
(2) The ABS foaming composite material is prepared by adopting a simple continuous extrusion foaming process, and is cooled and dried during extrusion, so that the ABS foaming composite material is simple in process, strong in operability, free of pungent smell and capable of giving out caramel sweet fragrance.
Drawings
FIG. 1 is a cross-sectional view of a foam wire obtained in examples 1 to 5 of the present invention, and FIGS. a to e correspond to examples 1 to 5, respectively.
Detailed Description
The DNA extraction kit adopted by the embodiment of the invention is Kaiser QIAamp DNA Stool Mini Kit.
In the description of the present invention, it is to be noted that the specific conditions are not specified in the examples, and the description is performed under the conventional conditions or the conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1
The embodiment provides a biomass modified ABS foaming material, which comprises the following raw material components in parts by weight: 3 parts of ultramicro tomato skin slag powder and 97 parts of extrusion-grade acrylonitrile-butadiene-styrene copolymer (ABS), 1 part of coupling agent KH-550 parts, and 1 part of toughening agent n-butyl citrate.
The preparation method of the composite foaming material comprises the following steps:
(1) The undried biomass filler (tomato pomace) was crushed to 200 mesh with a crusher.
(2) And (3) putting the crushed tomato peel residues obtained in the step (1) into an ultrafine grinder for further grinding to obtain biomass filler (ultrafine tomato peel powder) with smaller particle size. Technological parameter setting of the superfine pulverizer: the time is 90min, the frequency is 50Hz, and the temperature is between 10 ℃ below zero and 0 ℃.
(3) And (3) carrying the ultrafine tomato skin powder obtained in the step (2) by using a sealing belt, and placing the sealing belt in a place capable of avoiding direct sunlight. The standing time was 2 weeks.
(4) And (3) pouring the superfine tomato peel powder obtained in the step (3) and extrusion-grade acrylonitrile-butadiene-styrene copolymer (ABS) granules into a stirrer according to a proportion, and fully and uniformly stirring.
(5) After being stirred evenly, the mixture is poured into a material hopper of a co-rotating double-screw extruder by a material conveying belt or manually, the temperature of a feeding section is controlled to be 185 ℃ to 190 ℃, the temperature of a mixing section is controlled to be 205 ℃ to 210 ℃, the temperature of an extruding section is controlled to be 220 ℃, and the temperature of a machine head is controlled to be 210 ℃.
(6) When the polymer melt is extruded from the nozzle, the polymer melt is pulled to pass through a cooling water tank (2 m long) and a blast drier, and the cooled and dried polymer melt is formed into wires and then pelletized by a pelletizer.
The performance index of the foam obtained in this example is shown in table 1.
Example 2
The difference from example 1 is that the parts by weight of the ultra-fine tomato pomace powder and the extrusion grade acrylonitrile-butadiene-styrene copolymer (ABS) are 5 parts and 95 parts, respectively; the preparation method is the same as in example 1. The performance index of the foam obtained in this example is shown in table 1.
Example 3
The difference from example 1 is that the parts by weight of the ultra-fine tomato pomace powder and the extrusion grade acrylonitrile-butadiene-styrene copolymer (ABS) are 7 parts and 95 parts, respectively; the preparation method is the same as in example 1. The performance index of the foam obtained in this example is shown in table 1.
Example 4
The difference from example 1 is that the weight parts of the ultra-fine tomato skin powder and the extrusion grade acrylonitrile-butadiene-styrene copolymer (ABS) are 10 parts and 90 parts, respectively; the preparation method is the same as in example 1.
The performance index of the foam obtained in this example is shown in table 1.
Example 5
The difference from example 1 is that the weight parts of the ultra-fine tomato pomace powder and the extrusion grade acrylonitrile-butadiene-styrene copolymer (ABS) are 15 parts and 85 parts, respectively; the preparation method is the same as in example 1. The performance index of the foam obtained in this example is shown in table 1.
Comparative example 1
The difference from example 4 is that: the step (3) of the preparation method is not carried out for 2 weeks in a sealed and light-proof way, but is directly and uniformly mixed with ABS granules, a coupling agent and a toughening agent.
The performance index of the foam obtained in this comparative example is shown in table 1.
Comparative example 2
The difference from example 4 is that: the "standing time" of step (3) of the preparation method is 3 weeks.
The performance index of the foam obtained in this comparative example is shown in table 1.
Comparative example 3
The difference from example 1 is that: 100 parts of extrusion-grade acrylonitrile-butadiene-styrene copolymer (ABS); the preparation method comprises the following steps:
(1) Extruding acrylonitrile-butadiene-styrene copolymer (ABS) pellet into a hopper of a co-rotating double screw extruder through a material conveying belt or manually, controlling the temperature of a feeding section to 185-190 ℃, the temperature of a mixing section to 205-210 ℃, the temperature of an extruding section to 220 ℃ and the temperature of a machine head to 210 ℃.
(2) When the polymer melt is extruded from the nozzle, the polymer melt is pulled to pass through a cooling water tank (2 m long) and a blast drier, and the cooled and dried polymer melt is formed into wires and then pelletized by a pelletizer.
The performance index of the material obtained in this comparative example is shown in table 1.
TABLE 1 various performance indexes of the foaming materials obtained in the examples and comparative examples of the present invention
The data in Table 1 show that the foam obtained in example 4 has relatively good properties, i.e. 90 parts of ABS and 10 parts of tomato pomace are compounded, in 5 examples of the invention. And as the content of the tomato skin powder is increased, the foaming ratio of the ABS is increased and then reduced, wherein when the content of the tomato skin powder is 10 parts, the foaming ratio of the ABS is the largest. The mechanical properties of the foamed composite material decrease with increasing foaming ratio. Therefore, the amount of tomato pomace is controlled to 3-15 parts (the total amount of ABS and waste biomass filler is 100 parts), preferably 10 parts. Furthermore, the cross-sectional view of the foam wire in FIG. 1 also verifies the conclusion, wherein the foaming effect of FIG. d is optimal.
In addition, the results of comparative examples 1 and 2 in Table 1 show that the prepared ultrafine filler powder is required to be placed in a sealed state against light for 2 weeks, and if this operation is not performed, there is a large influence on the expansion ratio of the foaming material, and if the placing time is longer than 2 weeks, the relevant properties are also reduced, and therefore, the control is preferable in 1 to 2 weeks.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211193067.2A CN115505233B (en) | 2022-09-28 | 2022-09-28 | Biomass modified ABS foaming material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211193067.2A CN115505233B (en) | 2022-09-28 | 2022-09-28 | Biomass modified ABS foaming material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115505233A CN115505233A (en) | 2022-12-23 |
| CN115505233B true CN115505233B (en) | 2024-03-08 |
Family
ID=84505959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211193067.2A Active CN115505233B (en) | 2022-09-28 | 2022-09-28 | Biomass modified ABS foaming material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115505233B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408855A1 (en) * | 1994-03-16 | 1995-09-21 | Rawema Industrieanlagen Gmbh | Solid or foamed plastic using biomass as filler |
| CN1948384A (en) * | 2005-10-12 | 2007-04-18 | 北京化工大学 | Wood plastic micro foaming composite material and its processing shaping method |
| CN105131501A (en) * | 2015-09-06 | 2015-12-09 | 贵州省材料产业技术研究院 | Foaming master batch for ABS microcellular foaming material and preparation method thereof |
| CN108164915A (en) * | 2017-12-27 | 2018-06-15 | 四川鑫达企业集团有限公司 | A kind of ABS/ biomass composites and preparation method thereof |
| CN108164914A (en) * | 2017-12-26 | 2018-06-15 | 浙江普利特新材料有限公司 | A kind of fretting map injection ABS composite material and preparation method thereof |
| CN113024971A (en) * | 2021-04-09 | 2021-06-25 | 石嘴山市塑料厂 | Preparation method of waste biomass PVC composite pipe |
-
2022
- 2022-09-28 CN CN202211193067.2A patent/CN115505233B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408855A1 (en) * | 1994-03-16 | 1995-09-21 | Rawema Industrieanlagen Gmbh | Solid or foamed plastic using biomass as filler |
| CN1948384A (en) * | 2005-10-12 | 2007-04-18 | 北京化工大学 | Wood plastic micro foaming composite material and its processing shaping method |
| CN105131501A (en) * | 2015-09-06 | 2015-12-09 | 贵州省材料产业技术研究院 | Foaming master batch for ABS microcellular foaming material and preparation method thereof |
| CN108164914A (en) * | 2017-12-26 | 2018-06-15 | 浙江普利特新材料有限公司 | A kind of fretting map injection ABS composite material and preparation method thereof |
| CN108164915A (en) * | 2017-12-27 | 2018-06-15 | 四川鑫达企业集团有限公司 | A kind of ABS/ biomass composites and preparation method thereof |
| CN113024971A (en) * | 2021-04-09 | 2021-06-25 | 石嘴山市塑料厂 | Preparation method of waste biomass PVC composite pipe |
Non-Patent Citations (2)
| Title |
|---|
| 余青 ; 陈嘉浩 ; 王寅竹 ; 王海滨 ; 金伟平 ; 胡依黎 ; .超微粉碎处理对麦麸粉功能及结构特性的影响.粮食科技与经济.2020,(第02期), * |
| 郑刚 ; 郭小佩 ; 赵国华 ; 吴宏 ; .制备工艺对番茄皮膳食纤维理化性质的影响.食品科学.2010,(第16期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115505233A (en) | 2022-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101376718B (en) | Method for recycling waste polyurethane | |
| CN103524979B (en) | A kind of SEBS thermoplastic elastomer bra liner material and preparation method thereof and use | |
| CN102140246A (en) | Method for preparing nylon powder for selective laser sintering | |
| CN102504394A (en) | A kind of production method of plasticized molding filling masterbatch | |
| CN102875912B (en) | High-performance polystyrene alloy prepared by polystyrene materials of waste and worn electrical appliances, as well as preparation method and application of high-performance polystyrene alloy | |
| CN107163453A (en) | A kind of PVC and preparation method thereof | |
| CN101722689B (en) | Micro-foamed composite board and manufacturing method thereof | |
| CN104530529B (en) | Preparation method of plastic-wood composite material | |
| CN102516666A (en) | Polypropylene-based microcellular foaming wood-plastic composite material and production method thereof | |
| CN102453278B (en) | A kind of foamed polypropylene material under the action of pulsating shear force field and its preparation method | |
| CN105602114A (en) | Polypropylene foamed composite board and manufacturing method thereof | |
| CN115505233B (en) | Biomass modified ABS foaming material and preparation method thereof | |
| CN110016213B (en) | A kind of polylactic acid foam material with micro-nano composite cells and preparation method thereof | |
| CN202045775U (en) | Production equipment for making black master batch from waste plastics | |
| CN102241854A (en) | Foamed plastic sheet material prepared from waste and old polypropylene and rubber, and preparation method thereof | |
| CN108329577A (en) | A kind of feed back water suction master batch and preparation method thereof | |
| CN108892964B (en) | Polyolefin wood-plastic composite material and preparation method thereof | |
| CN110387096A (en) | Regenerated PVC pipe preparation method can be recycled in one kind | |
| CN110355970B (en) | Method for preparing colored TPU (thermoplastic polyurethane) foaming particles at one time by utilizing double-screw equipment | |
| CN104497390A (en) | Novel process for granulating modified recycled plastic particles | |
| JPH04301409A (en) | Manufacture of polyvinyl alcohol base molded form | |
| CN112297278A (en) | Preparation method of antimony trioxide PBT flame-retardant master batch | |
| CN110919895A (en) | Polylactic acid foamed microbead preparation device and preparation process thereof | |
| CN105149600B (en) | A kind of preparation method of high-specific gravity tungsten alloy particle | |
| CN102848487A (en) | Method for granulation of bakelite powder under hot melt state and equipment 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 |