CN108264687A - A kind of tear-proof anti-aging modified master - Google Patents
A kind of tear-proof anti-aging modified master Download PDFInfo
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- CN108264687A CN108264687A CN201810160781.9A CN201810160781A CN108264687A CN 108264687 A CN108264687 A CN 108264687A CN 201810160781 A CN201810160781 A CN 201810160781A CN 108264687 A CN108264687 A CN 108264687A
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- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
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- 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
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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- 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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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Abstract
The present invention relates to a kind of tear-proof anti-aging modified master, formula includes each component of following parts by weight：15~25 parts of vector resin, 70~80 parts of filler, 0.5~1 part of coupling agent, 2~4 parts of dispersant, 0.2~1 part of light stabilizer, 0.2~0.5 part of antioxidant, 0.2~1 part of graphene.The present invention is using nano-calcium carbonate or talcum powder as filler, add polyethylene and graphene, light stabilizer, antioxidant simultaneously, product tear resistance is high, uvioresistant excellent effect and long lifespan, the thermal degradation in process can effectively be inhibited, delay the thermo-oxidative ageing during use and light aging, the plastic products such as polypropylene container bag, woven bag and film suitable for there is anti-aging requirement.
Description
Technical field
The present invention relates to field of plastic products more particularly to a kind of tear-proof anti-aging modified masters.
Background technology
In the plastic products such as production process of polypropylene container bag, woven bag and film, certain proportion is added（Generally
Up to 10~30 parts）Filling-modified masterbatch product cost can not only be greatly lowered, can also improve to a certain extent
Certain mechanical properties of plastic products, such as rigidity, toughness, wearability.
Polypropylene plastics woven bags packaging object is being used and is easily being torn in handling process, and it is easily broken to encounter hard object collision
Damage, and Polywoven Bag packing material is stacked outdoors, after being absorbed ultraviolet light by solar exposure, easily causes polymer oxygen
Change, degradation, Polywoven Bag Mechanical Properties of Products is caused to decline, reduced service life.
The present invention selects nano-calcium carbonate or talcum powder as filler, using coupling agent and dispersant in homogenizer
Dispersion and modification are stirred to filler, after by modified filler, vector resin and light stabilizer, antioxidant, graphene
Mixing carries out high temperature preplasticizing, is processed into modified master, can achieve the effect that preferably homodisperse and toughening.Then
Modified master is mixed in proportion with polypropylene base-material, plastics volume is made in the techniques such as extruded machine extrusion, segmentation, wire drawing, braiding
Knit bag product.Its product tear resistance is high, while uvioresistant excellent effect and long lifespan, can effectively inhibit in process
Thermal degradation delays the thermo-oxidative ageing during use and light aging.
Invention content
The defects of in order to overcome on existing plastic products technology, the present invention provide a kind of Polywoven Bag tear-proof and prevent always
Change modified master, using nano-calcium carbonate or talcum powder as filler, filler is disperseed and changed using dispersant and coupling agent
Property, and added with light stabilizer, antioxidant and graphene, can effective mechanical properties such as the rigidity of enhanced article, tear resistance,
Improve aging life-span simultaneously.
A kind of Polywoven Bag provided by the invention tear-proof anti-aging modified master, which is characterized in that described one
Kind tear-proof anti-aging modified master includes each component of following parts by weight：15~25 parts of vector resin, filler 70~80
Part, 0.5~1 part of coupling agent, 2~4 parts of dispersant, 0.2~1 part of light stabilizer, 0.2~0.5 part of antioxidant, graphene 0.2~1
Part.
The vector resin and the resin that plastic products are selected are same or similar, and vector resin includes acrylic resin
With Hi-fax resin, wherein 85~95 parts of acrylic resin, 5~15 parts of Hi-fax resin.
The filler is nano-calcium carbonate, one or more in talcum powder.
The coupling agent is aluminate coupling agent, one kind in titanate coupling agent.
The dispersant is stearic acid, one or more in calcium stearate, chlorinated paraffin.
The light stabilizer is hindered amine light stabilizer 2020（Bis- (2,2,6,6- tetramethyl -4- the piperidines of N, N'-
Base) -1,6- hexamethylene diamines and tri- chloro- 1,3,5- triazines of 2,4,6- and N- butyl -1- butylamine and N- butyl -2,2,6,6- tetramethyls
The polymer of the reaction product of base -4- piperidinamines）、4050（Bis- formyl-N, N'- bis- of N, N'-（2,2,6,6- tetramethyl -4- piperazines
Pyridine））In it is one or more.
The antioxidant is composite antioxidant 1010-168（Four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid]
Pentaerythritol ester and three (2,4- di-tert-butyl-phenyls) phosphite esters）、1076-168（β-(3,5- di-t-butyl -4- hydroxy benzenes
Base) the positive octadecanol ester of propionic acid and three (2,4- di-tert-butyl-phenyls) phosphite esters）In one kind.
The graphene is the graphene oxide by modification.
The graphene is the graphene oxide of benzene ring structure within 10 layers.
A kind of tear-proof anti-aging modified master of the present invention, compared with prior art, advantages and beneficial effects
It is：Hi-fax strand used is in linear, has highly branched short-chain branch, and performance such as stress cracking resistance resists
Tearing strength, tensile strength and puncture resistance etc. all improve a lot compared with PP.Graphene have high specific surface area and
Excellent mechanical property can play good toughening effect after modification to polypropylene material, can carry by a relatively large margin
The tensile strength of high product, and keep higher elongation at break.And light stabilizer and antioxidant can effectively absorb ultraviolet light, suppression
Thermal degradation in process processed delays the thermo-oxidative ageing during use and light aging, so as to prolong the service life.
Specific embodiment
The present invention is described in further details with reference to specific embodiment.
Embodiment 1：
23 parts of vector resin, 72 parts of nano-calcium carbonate, 0.6 part of coupling agent, 3 parts of dispersant, bis- formyl-N, N'- bis- of N, N'-（2,
2,6,6- tetramethyl -4- piperidines）0.4 part of light stabilizer, four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] seasons penta
The oxidation stone of benzene ring structure within four alcohol esters and three 0.5 part, 10 layers of (2,4- di-tert-butyl-phenyls) phosphite ester composite antioxidants
Black 0.5 part of alkene；Wherein, vector resin has 95 parts of acrylic resin and 5 parts of Hi-fax resin.
Embodiment 2：
18 parts of vector resin, 76 parts of nano-calcium carbonate, 0.8 part of coupling agent, 3.6 parts of dispersant, bis- formyl-N, N'- bis- of N, N'-
（2,2,6,6- tetramethyl -4- piperidines）0.6 part of light stabilizer, four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] seasons
The oxidation of benzene ring structure within Doutrate and three 0.4 part, 10 layers of (2,4- di-tert-butyl-phenyls) phosphite ester composite antioxidants
0.6 part of graphene；Wherein, vector resin has 85 parts of acrylic resin and 15 parts of Hi-fax resin.
Embodiment 3：
20 parts of vector resin, 74.5 parts of nano-calcium carbonate, 0.8 part of coupling agent, 3 parts of dispersant, bis- formyl-N, N'- bis- of N, N'-
（2,2,6,6- tetramethyl -4- piperidines）0.6 part of light stabilizer, β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid positive 18
Carbon alcohol ester and three 0.3 part of (2,4- di-tert-butyl-phenyls) phosphite ester composite antioxidants, 0.8 part of graphene oxide；Wherein, it carries
Body resin has 85 parts of acrylic resin and 15 parts of Hi-fax resin.
Embodiment 4：
25 parts of vector resin, 80 parts of nano-calcium carbonate, 1 part of coupling agent, 4 parts of dispersant, bis- formyl-N, N'- bis- of N, N'-（2,2,
6,6- tetramethyl -4- piperidines）1 part of light stabilizer, β-positive octadecanol ester of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid
With the graphene oxide 1 of benzene ring structure within three 0.5 part, 10 layers of (2,4- di-tert-butyl-phenyls) phosphite ester composite antioxidants
Part；Wherein, vector resin has 95 parts of acrylic resin and 15 parts of Hi-fax resin.
Embodiment 5：
15 parts of vector resin, 70 parts of nano-calcium carbonate, 0.5 part of coupling agent, 2 parts of dispersant, 0.2 part of light stabilizer, β-(3,5-
Di-tert-butyl-hydroxy phenyl) the positive octadecanol ester of propionic acid and three (2,4- di-tert-butyl-phenyls) phosphite ester composite antioxidants
0.2 part of the graphene oxide of benzene ring structure within 0.2 part, 10 layers；Wherein, vector resin have 95 parts acrylic resin and 15 parts
Hi-fax resin.
In the present invention first will filler, coupling agent and dispersant add in homogenizer in, to filler be stirred dispersion and
It is modified, after high temperature preplasticizing is carried out by modified filler, vector resin and light stabilizer, antioxidant, graphene mixing, add
Modified master is made in work, to achieve the effect that preferably homodisperse and toughening.By modified master and polypropylene base-material in proportion
The techniques such as mixing, extruded machine extrusion, segmentation, wire drawing, braiding can be made into Polywoven Bag product.
Claims (9)
1. a kind of tear-proof anti-aging modified master includes each component of following parts by weight：15~25 parts of vector resin, filler
70~80 parts, 0.5~1 part of coupling agent, 2~4 parts of dispersant, 0.2~1 part of light stabilizer, 0.2~0.5 part of antioxidant, graphene
0.2~1 part.
2. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The vector resin packet
Include acrylic resin and Hi-fax resin, wherein 85~95 parts of acrylic resin, 5~15 parts of Hi-fax resin.
3. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The filler is nanometer
It is one or more in calcium carbonate, talcum powder.
4. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The coupling agent is aluminium
One kind in acid esters coupling agent, titanate coupling agent.
5. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The dispersant is hard
It is one or more in resin acid, calcium stearate, polyethylene wax.
6. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The light stabilizer is
Hindered amine light stabilizer 2020（Bis- (2,2,6,6- tetramethyl -4- the piperidyls) -1,6- hexamethylene diamines of N, N'- and 2,4,6- tri-
The reaction product of chloro- 1,3,5- triazines and N- butyl -1- butylamine and N- butyl -2,2,6,6- tetramethyl -4- piperidinamines is gathered
Close object）、4050（Bis- formyl-N, N'- bis- of N, N'-（2,2,6,6- tetramethyl -4- piperidines））In it is one or more.
7. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The antioxidant is multiple
Close antioxidant 1010-168（Four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters and three (bis- uncles of 2,4-
Butyl phenyl) phosphite ester）、1076-168（β-positive octadecanol the ester of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid and three
(2,4- di-tert-butyl-phenyls) phosphite ester）In one kind.
8. a kind of tear-proof anti-aging modified master according to claim 1, it is characterised in that:The graphene is warp
Cross the graphene oxide of modification.
9. according to a kind of any tear-proof anti-aging modified master of claim 1,8, it is characterised in that:The graphite
Alkene is the graphene oxide of benzene ring structure within 10 layers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160781.9A CN108264687A (en) | 2018-02-27 | 2018-02-27 | A kind of tear-proof anti-aging modified master |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160781.9A CN108264687A (en) | 2018-02-27 | 2018-02-27 | A kind of tear-proof anti-aging modified master |
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| CN108264687A true CN108264687A (en) | 2018-07-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948587A (en) * | 2018-07-24 | 2018-12-07 | 常州达奥新材料科技有限公司 | A kind of dedicated bloom modified master of transparent PVC boardy product |
| CN109135017A (en) * | 2018-08-29 | 2019-01-04 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of thermo oxidative aging high-strength thermoplastic plastics |
| CN109161077A (en) * | 2018-08-02 | 2019-01-08 | 福融辉实业（福建）有限公司 | A kind of BOPP film extension period masterbatch |
| CN110317396A (en) * | 2019-05-27 | 2019-10-11 | 江苏汉德纳米材料科技有限公司 | A kind of polypropylene agglomerate and its manufacturing process of high-strength and high ductility |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819815A (en) * | 2014-01-28 | 2014-05-28 | 盐城纳新天地新材料科技有限公司 | Grapheme modified polypropylene master batch and preparation method thereof |
| CN105348638A (en) * | 2015-11-10 | 2016-02-24 | 安徽安远塑胶股份有限公司 | Tear-resistant geo-woven fabric material and preparation method therefor |
| CN107163398A (en) * | 2017-07-06 | 2017-09-15 | 盐城瑞泽色母粒有限公司 | A kind of polypropylene color masterbatch of graphene-containing and preparation method thereof |
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2018
- 2018-02-27 CN CN201810160781.9A patent/CN108264687A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819815A (en) * | 2014-01-28 | 2014-05-28 | 盐城纳新天地新材料科技有限公司 | Grapheme modified polypropylene master batch and preparation method thereof |
| CN105348638A (en) * | 2015-11-10 | 2016-02-24 | 安徽安远塑胶股份有限公司 | Tear-resistant geo-woven fabric material and preparation method therefor |
| CN107163398A (en) * | 2017-07-06 | 2017-09-15 | 盐城瑞泽色母粒有限公司 | A kind of polypropylene color masterbatch of graphene-containing and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108948587A (en) * | 2018-07-24 | 2018-12-07 | 常州达奥新材料科技有限公司 | A kind of dedicated bloom modified master of transparent PVC boardy product |
| CN109161077A (en) * | 2018-08-02 | 2019-01-08 | 福融辉实业（福建）有限公司 | A kind of BOPP film extension period masterbatch |
| CN109135017A (en) * | 2018-08-29 | 2019-01-04 | 佛山朝鸿新材料科技有限公司 | A kind of preparation method of thermo oxidative aging high-strength thermoplastic plastics |
| CN110317396A (en) * | 2019-05-27 | 2019-10-11 | 江苏汉德纳米材料科技有限公司 | A kind of polypropylene agglomerate and its manufacturing process of high-strength and high ductility |
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