CN104448585A - Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material - Google Patents
Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material Download PDFInfo
- Publication number
- CN104448585A CN104448585A CN201410725522.8A CN201410725522A CN104448585A CN 104448585 A CN104448585 A CN 104448585A CN 201410725522 A CN201410725522 A CN 201410725522A CN 104448585 A CN104448585 A CN 104448585A
- Authority
- CN
- China
- Prior art keywords
- weight part
- district
- composite material
- polypropylene
- processing
- 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
- 229920005610 lignin Polymers 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 8
- 229920002943 EPDM rubber Polymers 0.000 title abstract description 4
- 238000005516 engineering process Methods 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 8
- -1 polypropylene Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000005060 rubber Substances 0.000 claims description 14
- 238000007731 hot pressing Methods 0.000 claims description 9
- 241000219000 Populus Species 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 229920001897 terpolymer Polymers 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 235000011150 stannous chloride Nutrition 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- AXZWODMDQAVCJE-UHFFFAOYSA-L tin(II) chloride (anhydrous) Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 238000010923 batch production Methods 0.000 abstract 1
- 239000002085 irritant Substances 0.000 abstract 1
- 231100000021 irritant Toxicity 0.000 abstract 1
- 239000002075 main ingredient Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 description 2
- 229920005615 natural polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011157 advanced composite material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—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
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to a technology for processing an ethylene propylene diene monomer rubber/polypropylene/lignin composite material. According to the material, industrial lignin extracted from papermaking waste liquor serving as a main ingredient is added into a blending system of ethylene propylene diene monomer rubber and polypropylene, the application field of the industrial lignin is widened, and the mechanical property, ageing resistance and thermal stability property of the composite material are improved. The production process of the material is simple, all the raw materials are blended at normal temperature, are extruded by a twin-screw extruder and are subjected to hot press molding by virtue of a hot press, the material can be processed by adopting standard thermoplastic plastic processing equipment, the processing cost is low, the leftover materials are recycled, the production efficiency can be improved, and the process is suitable for industrial batch production. According to the process disclosed by the invention, a phenolic resin curing system is adopted, naphthenic oil is selected as a plasticizer, release of irritant gas is avoided in the processing and using process, and the composite material is a novel environment-friendly material.
Description
Technical field
The present invention relates to advanced composite material field, particularly relate to a kind of EPT rubber/lignin composite material complete processing.
Background technology
The terpolymer EP rubber (EPDM) be prepared from now/polypropylene (PP) thermoplastic elastomer (TPV), general employing carbon black is as strongthener, and xylogen is the enhancing substance in vegetable chemistry structure, being be only second to the cellulosic second abundant natural polymer in vegitabilia, is also the non-oil resource that nature uniquely can provide renewable aryl compound.Utilization ratio as the industrial lignin of pulp and paper industry byproduct is extremely low, and the whole world only has 1% ~ 2% every year, and major part, as waste discharge, not only wastes resource, and contaminate environment.
Utilize xylogen as the strengthening agent of macromolecular material, be no matter the angle from protection of the environment, or from the viewpoint of saving the consumption etc. of the oil such as rubber, plastics, carbon black, gas product, all there is good social effect and economic worth.Relative to other natural polymer, lignin molecule has numerous different types of active functional group, has renewable, degradable, the advantage such as nontoxic concurrently, and industrial lignin derives from black liquid, with low cost, be thus regarded as excellent green chemical industry raw material, its comprehensive utilization receives much concern.In the face of xylogen for want of application approach and the burned or discarded situation of current most of type, be badly in need of by suitable chemistry and physical method, find new utilization ways, turn waste into wealth.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through research and practice.
Summary of the invention
The object of the present invention is to provide a kind of EPT rubber/lignin composite material complete processing, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of EPT rubber/lignin composite material complete processing, the industrial lignin extracted in papermaking wastewater is added to terpolymer EP rubber and polyacrylic co-mixing system as major ingredient, widen the Application Areas of industrial lignin on the one hand, improve the over-all properties of material on the other hand.
A kind of complete processing of EPT rubber/lignin composite material comprises following step: step a, raw material prepares: utilize weighing equipment to take terpolymer EP rubber 100 weight part, polypropylene 50-150 weight part, xylogen 50-150 weight part, phenolic curing resins 8-12 weight part, tin protochloride 1-2 weight part, sulphur 0-1.5 weight part, zinc oxide 0-10 weight part, stearic acid 0-2 weight part, naphthenic oil 0-30 weight part, poplar wood powder 0-90 weight part, 10 grams, PE wax;
Step b, blended: the raw material weighed up in step a is put at normal temperatures stirrer simultaneously and stir, churning time is 3-10 minute;
Step c, extrude: the material be stirred is put into twin screw extruder, arranging twin screw extruder each district temperature is: a district: 145 DEG C, 2nd district: 160-165 DEG C, 3rd district: 165-180 DEG C, 4th district: 170-190 DEG C, 5th district: 170-190 DEG C, 6th district: 165-180 DEG C, 7th district: 160-165 DEG C; Arranging rate of extrusion is 50-150r/min; Arranging rate of feeding is 6-12r/min, carries out extruding processing;
Steps d, hot pressing: the material extruded in step c is put into thermocompressor and carries out hot-forming.
Further, in above-mentioned steps a, poplar wood powder will in the baking oven of 80-100 DEG C dry 10 hours, to ensure that water ratio is below 5%.
Further, in above-mentioned steps d, hot pressing temperature is 160-190 DEG C, and hot pressing time is 3-10min, and the time of colding pressing is 3-10min.
Beneficial effect of the present invention is compared with prior art: adopt the method that disposable normal temperature is blended, greatly save the production time, improve production efficiency.The interpolation of xylogen, had both widened the Application Areas of industrial lignin, had in turn enhanced the over-all properties of material simultaneously.
Embodiment
Below, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Embodiment one:
1) raw material prepares: take terpolymer EP rubber 400 grams, polypropylene 400 grams, 400 grams, xylogen, phenolic curing resins 40 grams, tin protochloride 6 grams, 4.5 grams, sulphur, 22.5 grams, zinc oxide, stearic acid 4.5 grams, naphthenic oil 30 grams, poplar wood powder 180 grams, 10 grams, PE wax.Wherein poplar wood powder in the baking oven of 80-100 DEG C dry 10 hours, controls its water ratio below 5%.
2) blended: the raw material weighed up is put at normal temperatures stirrer simultaneously and stir, churning time is 5 minutes.
3) extrude: the material be stirred is put into twin screw extruder, arranging twin screw extruder each district temperature is: a district: 145 DEG C, 2nd district: 165 DEG C, 3rd district: 175 DEG C, 4th district: 180 DEG C, 5th district: 180 DEG C, 6th district: 175 DEG C, 7th district: 165 DEG C; Arranging rate of extrusion is 50r/min; Arranging rate of feeding is 6r/min, carries out extruding processing.
4) hot pressing: the material extruded through twin screw extruder is put into thermocompressor and carries out hot-forming, hot pressing temperature is 175 DEG C, and hot pressing time is 3min, and the time of colding pressing is 3min.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that invention claim limits to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (3)
1. EPT rubber/lignin composite material complete processing, is characterized in that, this detailed process is:
Step a, raw material prepares: utilize weighing equipment to take terpolymer EP rubber 100 weight part, polypropylene 50-150 weight part, xylogen 50-150 weight part, phenolic curing resins 8-12 weight part, tin protochloride 1-2 weight part, sulphur 0-1.5 weight part, zinc oxide 0-10 weight part, stearic acid 0-2 weight part, naphthenic oil 0-30 weight part, poplar wood powder 0-90 weight part, 10 grams, PE wax;
Step b, blended: the raw material weighed up in step a is put at normal temperatures stirrer simultaneously and stir, churning time is 3-10 minute;
Step c, extrude: the material be stirred is put into twin screw extruder, arranging twin screw extruder each district temperature is: a district: 145 DEG C, 2nd district: 160-165 DEG C, 3rd district: 165-180 DEG C, 4th district: 170-190 DEG C, 5th district: 170-190 DEG C, 6th district: 165-180 DEG C, 7th district: 160-165 DEG C; Arranging rate of extrusion is 50-150r/min; Arranging rate of feeding is 6-12r/min, carries out extruding processing;
Steps d, hot pressing: the material extruded in step c is put into thermocompressor and carries out hot-forming.
2. EPT rubber according to claim 1/lignin composite material complete processing, is characterized in that, in above-mentioned steps a, poplar wood powder will in the baking oven of 80-100 DEG C dry 10 hours, to ensure that water ratio is below 5%.
3. EPT rubber according to claim 1/lignin composite material complete processing, is characterized in that, in above-mentioned steps d, hot pressing temperature is 160-190 DEG C, and hot pressing time is 3-10min, and the time of colding pressing is 3-10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725522.8A CN104448585A (en) | 2014-11-28 | 2014-11-28 | Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725522.8A CN104448585A (en) | 2014-11-28 | 2014-11-28 | Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104448585A true CN104448585A (en) | 2015-03-25 |
Family
ID=52895376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410725522.8A Pending CN104448585A (en) | 2014-11-28 | 2014-11-28 | Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104448585A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10538012B2 (en) | 2015-12-07 | 2020-01-21 | Timothee Boitouzet | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11656756B2 (en) | 2018-02-09 | 2023-05-23 | Sas Woodoo | Touch detection device with touch interface made of composite material |
| CN116178976A (en) * | 2023-02-21 | 2023-05-30 | 上海昶法新材料有限公司 | Preparation method of modified lignin and application of modified lignin in natural rubber |
| US11820041B2 (en) | 2017-06-07 | 2023-11-21 | Sas Woodoo | Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0130014A1 (en) * | 1983-06-28 | 1985-01-02 | Exxon Research And Engineering Company | Bitumenous compositions |
| CN103834107A (en) * | 2014-03-11 | 2014-06-04 | 大连工业大学 | Modified lignin intumescent flame retardant TPO composite material as well as preparation method and application of composite material |
-
2014
- 2014-11-28 CN CN201410725522.8A patent/CN104448585A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0130014A1 (en) * | 1983-06-28 | 1985-01-02 | Exxon Research And Engineering Company | Bitumenous compositions |
| CN103834107A (en) * | 2014-03-11 | 2014-06-04 | 大连工业大学 | Modified lignin intumescent flame retardant TPO composite material as well as preparation method and application of composite material |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10538012B2 (en) | 2015-12-07 | 2020-01-21 | Timothee Boitouzet | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11254026B2 (en) | 2015-12-07 | 2022-02-22 | Timothée BOITOUZET | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11820041B2 (en) | 2017-06-07 | 2023-11-21 | Sas Woodoo | Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material |
| US11656756B2 (en) | 2018-02-09 | 2023-05-23 | Sas Woodoo | Touch detection device with touch interface made of composite material |
| US11662899B2 (en) | 2018-02-09 | 2023-05-30 | Sas Woodoo | Touch detection device with touch interface made of composite material |
| CN116178976A (en) * | 2023-02-21 | 2023-05-30 | 上海昶法新材料有限公司 | Preparation method of modified lignin and application of modified lignin in natural rubber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805472B (en) | Regeneration high-density polyethylene (HDPE) particle used for tubings and manufacture method thereof | |
| CN106589871A (en) | Lignin modified PHA biodegradable plastic and preparing method thereof | |
| CN102140255A (en) | Hot-press type wood plastic composite for toy and preparation method thereof | |
| CN104448585A (en) | Technology for processing ethylene propylene diene monomer rubber/polypropylene/lignin composite material | |
| CN102604164A (en) | Master batch capable of fully and biologically degrading plastic film and preparation method thereof | |
| CN106700442B (en) | A kind of lignin modification PBS biodegradable plastic and preparation method thereof | |
| CN104177662A (en) | Biodegradable material as well as preparation method and application of biodegradable material | |
| CN106189326B (en) | Application of furfural residues in preparation of wood-plastic materials | |
| CN104098833B (en) | One kind is used for heat-resisting master batch of polyacrylic antioxygen and preparation method thereof | |
| CN104774400B (en) | PVC pellet compositions of low compression set and its preparation method and application | |
| CN103435920A (en) | Method for producing recycled-ethylene-propylene-terpolymer-rubber seal strip | |
| CN103602004B (en) | A kind of artificial floor leather utilizing modified plastics to prepare | |
| CN103289157A (en) | Method for preparing recovered high-density polyethylene (HDPE) modified pipeline material with excellent weather resistance | |
| CN104530738B (en) | PP/ABS wood-plastic composite plate and manufacturing method thereof | |
| CN105086393A (en) | Plastic allowing PLA to be fully degraded and production method thereof | |
| CN103242580A (en) | Method for preparing pipeline material by utilization of recovered HDPE low-temperature solid-phase extrusion reaction | |
| CN105778368A (en) | Macromolecular ageing resistant plastic material and preparation method thereof | |
| CN106700472B (en) | A kind of lignin modification PPC biodegradable plastic and preparation method thereof | |
| CN104974485A (en) | APET composite sheet and preparation method thereof | |
| CN103707516B (en) | A kind of method that reclaim drip irrigation zone | |
| CN105907094A (en) | Heat-resistant high-elasticity plastic material and preparation method thereof | |
| CN104592638A (en) | Waste fishing net modified plastic and preparation method thereof | |
| CN108948677A (en) | A kind of lignin modification polyadipate/compound seedling-cultivation plate of butylene terephthalate and preparation method thereof | |
| CN102382380A (en) | Continuous thermal-shrinkable stress control tube material and preparation method thereof | |
| CN114573922B (en) | Application of elemental sulfur/terpene copolymer in thermoplastic elastomer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
|
| RJ01 | Rejection of invention patent application after publication |