CN103756142A - Application of styrene elastomers as additives for improving low-temperature folding resistance of polypropylene and folding resistant polypropylene prepared from styrene elastomers - Google Patents
Application of styrene elastomers as additives for improving low-temperature folding resistance of polypropylene and folding resistant polypropylene prepared from styrene elastomers Download PDFInfo
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- CN103756142A CN103756142A CN201410006505.9A CN201410006505A CN103756142A CN 103756142 A CN103756142 A CN 103756142A CN 201410006505 A CN201410006505 A CN 201410006505A CN 103756142 A CN103756142 A CN 103756142A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 97
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 97
- -1 polypropylene Polymers 0.000 title claims abstract description 75
- 239000000654 additive Substances 0.000 title claims abstract description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 title abstract description 22
- 229920001971 elastomer Polymers 0.000 title abstract 6
- 239000000806 elastomer Substances 0.000 title abstract 6
- 239000003381 stabilizer Substances 0.000 claims description 22
- 229920000642 polymer Polymers 0.000 claims description 18
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 15
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005453 pelletization Methods 0.000 claims description 9
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 229920002223 polystyrene Polymers 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 2
- 229920002742 polystyrene-block-poly(ethylene/propylene) -block-polystyrene Polymers 0.000 claims 4
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000002834 transmittance Methods 0.000 abstract description 2
- 102220040412 rs587778307 Human genes 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920006124 polyolefin elastomer Polymers 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000012780 transparent material 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/10—Peculiar tacticity
- C08L2207/14—Amorphous or atactic polypropylene
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an application of styrene elastomers as additives for improving low-temperature folding resistance of polypropylene and folding resistant polypropylene prepared from the styrene elastomers. The inventor finds out that the styrene elastomers have excellent compatibility with the polypropylene, and minimum in phase size in the polypropylene matrix, and the polypropylene added with the styrene elastomers still has excellent light transmission property and folding resistance at a low temperature. The folding resistant polypropylene has the tensile strength of greater than or equal to 20MPa, the elongation at break of greater than or equal to 500%, the notch impact strength (23 DEG C) of greater than or equal to 15KJ/m<2>, the hinge (0.5mm) folding count at 23 DEG C of greater than or equal to 106, the hinge (0.5mm) folding count at minus 30 DEG C of greater than or equal to 105, and the light transmittance of greater than or equal to 90%, and thus is capable of meeting the requirements for the transparent folding-resistant polypropylene in cold regions.
Description
Technical field
The invention belongs to polymer material molding manufacture field, relate in particular to a kind of styrenic elastomerics at the application as raising polypropylene low temperature fold resistant performance additive and the fold-resistant polypropylene of preparation thereof.
Background technology
Polypropylene is commonly called as polypropylene (PP), has raw material sources abundant, and comprehensive mechanical property is good, and cost performance is high, the advantages such as environment-protecting asepsis and easily recovery, and a lot of daily necessitiess that have in daily living article gradually adopt polypropylene to carry out injection moulding.Along with the raising of the synthetic level of polypropylene, transparent fold-resistant polypropylene has the trend of the conventional transparent materials such as substituted polystyrene, K resin and PC gradually, in the injection-molded item of door assembly with hinge and glass in right hand and left structure, is widely applied.
But traditional transparent fold-resistant polypropylene only can keep excellent hinge performance at normal temperatures, when envrionment temperature is when subzero, its fold resistant effect significantly declines, even very easily cracking, and this has been subject to significant limitation to transparent fold-resistant polypropylene in the application of cold district.Under normal temperature, in order to improve the folding property of fold-resistant polypropylene, this area is to add toughner compared with effective means.But existing polyacrylic low temperature fold resistant performance of having added toughner is still not good, and some has added the polypropylene of toughner and even under cold condition, has lost properties of transparency and original fold resistant performance simultaneously.
Summary of the invention
Goal of the invention of the present invention, is in order to overcome the deficiencies in the prior art, and a kind of polypropylene still at low temperatures with good fold resistant performance is provided.
Another object of the present invention is to provide described fold resistant performance preparation method of polypropylene.
Another object of the present invention is to provide styrenic elastomeric new application, it can, for improving polypropylene low temperature fold resistant performance additive, improve polypropylene and in cold district, apply restricted defect.
Above-mentioned purpose of the present invention is achieved by following technical solution:
Styrenic elastomerics is in the application as improving polypropylene low temperature fold resistant performance additive.
Wherein, described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer (SBS), hydrogenated styrene-butadiene-styrene ternary block polymer (SEBS), styrene-isoprene-phenylethene ternary block polymer (SIS) or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer (SEPS).
As a kind of preferred version, described styrenic elastomerics is SEPS or SEBS.
As a kind of preferred version, described polypropylene is that melt flow rate (MFR) is the mixture of a kind of in the homo-polypropylene, atactic copolymerized polypropene of 1～30g/10min or two kinds.
In the present invention, described melt flow rate (MFR) is at 2.16kg, the data that detect at 190 ℃.
As a kind of preferred version, styrenic elastomerics and polyacrylic ratio are weight ratio 1 ~ 20 styrenic elastomerics: 78 ~ 99 polypropylene add.
As more preferably scheme of one, styrenic elastomerics and polyacrylic ratio are weight ratio 5 ~ 15 styrenic elastomericss: 85 ~ 95 polypropylene add.
A kind of fold-resistant polypropylene, comprises following in the component composition of percentage ratio by weight:
Polypropylene 78 ~ 99%;
Styrenic elastomerics 1 ~ 20%;
Thermo-stabilizer 0 ~ 1%;
Nucleator 0 ~ 1%;
Described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer SBS, hydrogenated styrene-butadiene-styrene ternary block polymer SEBS, styrene-isoprene-phenylethene ternary block polymer SIS or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer SEPS.
A kind of fold-resistant polypropylene, by forming in the component of percentage ratio by weight below:
Polypropylene 78 ~ 99%;
Styrenic elastomerics 1 ~ 20%;
Thermo-stabilizer 0 ~ 1%;
Nucleator 0 ~ 1%;
Described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer SBS, hydrogenated styrene-butadiene-styrene ternary block polymer SEBS, styrene-isoprene-phenylethene ternary block polymer SIS or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer SEPS.
Contriver finds, most of toughner improves poor or adverse effect to polyacrylic low temperature fold resistant performance, mainly because under cold condition, toughner and polyacrylic compatibility problem become very outstanding, the bad phase size of most toughner in polypropylene matrix that make of consistency is large, cause the fold resistant performance of polypropylene under cold condition not good, lose properties of transparency and original fold resistant performance even simultaneously.And styrenic elastomerics and polypropylene have excellent consistency, its phase size in polypropylene matrix is minimum simultaneously, is added with the elastomeric polypropylene of styrenic, still has at low temperatures good light transmission and folding resistance.
Described thermo-stabilizer is the conventional thermo-stabilizer in this area, and it can improve the degradation problem of polypropylene product in the course of processing.
Nucleator is polypropylene conventional nucleator while preparing, and it can improve the crystallization rate in polypropylene injection moulding process, shortening injection molding cycle.
In polypropylene product of the present invention, can also add the conventional auxiliary agent in other this areas.
A preparation method for described fold-resistant polypropylene, comprises the steps:
Polypropylene, styrenic elastomerics, thermo-stabilizer, nucleator melting mixing in twin screw extruder is disperseed, and each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, and extruding pelletization, finally obtains product.
As a kind of preferred version, the length-to-diameter ratio of described twin screw extruder is preferably 40:1.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts styrenic elastomerics to mix with polypropylene, makes the polypropylene of preparation have excellent low temperature fold resistant performance, its tensile strength>=20MPa, elongation at break>=500%, notched Izod impact strength (23 ℃)>=15KJ/m when having excellent transparency
2, 23 ℃ of hinges (0.5mm) folding times>=10
6inferior ,-30 ℃ of hinges (0.5mm) folding times>=10
5inferior, transmittance>=90%, can meet the requirement of cold district to transparent fold-resistant polypropylene.
Embodiment
Below in conjunction with some embodiments, fold-resistant polypropylene of the present invention and preparation method thereof is described further.Specific embodiment is for further describing the present invention, non-limiting protection scope of the present invention.
In all embodiment provided by the invention, the starting material that provide all can obtain from market buying, and main raw material information is as follows:
Polypropylene PP RP346R is purchased from (CSPC), and random copolymerization PP melt flow rate (MFR) is 20 ~ 30g/10min.
Polypropylene PP S700 is purchased from (Lanzhou Petrochemical), and homopolymerization PP melt flow rate (MFR) is 5 ~ 10g/10min.
Polypropylene PP SM256 is purchased from (the large rattan of Malaysia), and random copolymerization PP melt flow rate (MFR) is 1 ~ 2g/10min.
Polypropylene PP T30S is purchased from (Lanzhou Petrochemical), and homopolymerization PP melt flow rate (MFR) is 2 ~ 5g/10min.
SEPS:SEPTON 2002, purchased from (Kuraray), styrene content is 20 quality %.
SEPS:SEPTON 2063, purchased from (Kuraray), styrene content is 20 quality %.
SEBS:6006, purchased from (platform), styrene content is 21 quality %.
SIS:SIS D1162P, Ke Teng company, styrene content is 22 quality %.
SBS:SBS LG503P, LG chemistry, styrene content is 20 quality %.
Comparative example 1
Melting mixing in 99.6 kilograms of polypropylene PP RP346R, 1010,0.2 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 0.2 kilogram of thermo-stabilizer is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Comparative example 2
Melting mixing in 94.6 kilograms of polypropylene PP RP346R, 5 kilograms of polyolefin elastomers, 1010,0.2 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 0.2 kilogram of thermo-stabilizer is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Embodiment 1
Melting mixing in 94.6 kilograms of polypropylene PP RP346R, 1010,0.2 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 2002,0.2 kilogram of thermo-stabilizer of 5 kilograms of styrenic elastomerics SEPTON is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Embodiment 2
Melting mixing in 69.4 kilograms of polypropylene PP RP346R, 20 kilograms of polypropylene PP S700,1010,0.3 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 2063,0.3 kilogram of thermo-stabilizer of 10 kilograms of styrenic elastomerics SEPTON is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Embodiment 3
Melting mixing in 54.1 kilograms of polypropylene PP SM256,30 kilograms of polypropylene PP T30S, 1010,0.4 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 6006,0.5 kilogram of thermo-stabilizer of 15 kilograms of styrenic elastomerics SEBS is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Embodiment 4
Melting mixing in 54.1 kilograms of polypropylene PP SM256,30 kilograms of polypropylene PP T30S, 15 kilograms of styrenic elastomerics SIS D1162P, 1010,0.4 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 0.5 kilogram of thermo-stabilizer is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
Embodiment 5
Melting mixing in 54.1 kilograms of polypropylene PP SM256,30 kilograms of polypropylene PP T30S, 15 kilograms of styrenic elastomerics SBS LG503P, 1010,0.4 kilogram of twin screw extruder that thermo-stabilizer 168 is 40:1 in length-to-diameter ratio of 0.5 kilogram of thermo-stabilizer is disperseed, each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, extruding pelletization, finally obtains product.
By respective standard, test its performance, be listed as follows:
From embodiment and comparative example, can find out, at styrenic elastomerics, can improve polypropylene formulations fold resistant performance at low temperatures, keep outstanding light transmission simultaneously.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. styrenic elastomerics is in the application as improving polypropylene low temperature fold resistant performance additive.
2. application according to claim 1, it is characterized in that, described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer SBS, hydrogenated styrene-butadiene-styrene ternary block polymer SEBS, styrene-isoprene-phenylethene ternary block polymer SIS or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer SEPS.
3. according to application described in claim 1 or 2, it is characterized in that, described styrenic elastomerics is SEPS or SEBS.
4. application according to claim 1, is characterized in that, described polypropylene is that melt flow rate (MFR) is the mixture of a kind of in the homo-polypropylene, atactic copolymerized polypropene of 1～30g/10min or two kinds.
5. application according to claim 1, is characterized in that, styrenic elastomerics and polyacrylic ratio are weight ratio 1 ~ 20 styrenic elastomerics: 78 ~ 99 polypropylene add.
6. according to application described in claim 1 or 5, it is characterized in that, styrenic elastomerics and polyacrylic ratio are weight ratio 5 ~ 15 styrenic elastomericss: 85 ~ 95 polypropylene add.
7. a fold-resistant polypropylene, is characterized in that, comprises the following composition of the component in percentage ratio by weight:
Polypropylene 78 ~ 99%;
Styrenic elastomerics 1 ~ 20%;
Thermo-stabilizer 0 ~ 1%;
Nucleator 0 ~ 1%;
Described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer SBS, hydrogenated styrene-butadiene-styrene ternary block polymer SEBS, styrene-isoprene-phenylethene ternary block polymer SIS or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer SEPS.
8. a fold-resistant polypropylene, is characterized in that, by forming in the component of percentage ratio by weight below:
Polypropylene 78 ~ 99%;
Styrenic elastomerics 1 ~ 20%;
Thermo-stabilizer 0 ~ 1%;
Nucleator 0 ~ 1%;
Described styrenic elastomerics is one or several the mixture in styrene-butadiene-styrene ternary block polymer SBS, hydrogenated styrene-butadiene-styrene ternary block polymer SEBS, styrene-isoprene-phenylethene ternary block polymer SIS or hydrogenated styrene-isoprene-polystyrene ternary segmented copolymer SEPS.
9. the preparation method of fold-resistant polypropylene described in claim 7 or 8, comprises the steps:
Polypropylene, styrenic elastomerics, thermo-stabilizer, nucleator melting mixing in twin screw extruder is disperseed, and each section of temperature of forcing machine is arranged on 220 ~ 260 ℃, and extruding pelletization, finally obtains product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006505.9A CN103756142B (en) | 2014-01-03 | 2014-01-03 | Application of styrene elastomers as additives for improving low-temperature folding resistance of polypropylene and folding resistant polypropylene prepared from styrene elastomers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410006505.9A CN103756142B (en) | 2014-01-03 | 2014-01-03 | Application of styrene elastomers as additives for improving low-temperature folding resistance of polypropylene and folding resistant polypropylene prepared from styrene elastomers |
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| CN103756142A true CN103756142A (en) | 2014-04-30 |
| CN103756142B CN103756142B (en) | 2017-01-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780046A (en) * | 2016-08-31 | 2018-03-09 | 广东协宏无纺布科技有限公司 | A kind of multilayer folding non-woven fabrics |
| CN109265826A (en) * | 2018-09-07 | 2019-01-25 | 淄博天恒纳米新材料科技股份有限公司 | A kind of low temperature resistant plastic uptake polypropene composition of high transparency and preparation method thereof |
| CN110903549A (en) * | 2019-12-04 | 2020-03-24 | 联泓(江苏)新材料研究院有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN115819864A (en) * | 2021-12-07 | 2023-03-21 | 中山市广仁塑料制品有限公司 | Extrusion process of novel water-resistant high-flexibility plastic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206376A (en) * | 2010-03-31 | 2011-10-05 | 上海金发科技发展有限公司 | Polypropylene material filled with inorganic mineral powder, and its preparation method and application |
| CN102492225A (en) * | 2011-11-29 | 2012-06-13 | 南京鸿瑞塑料制品有限公司 | Transparent cold resistance high melt-strength polypropylene material used for automobile expansion water tank and its preparation method |
| CN102757600A (en) * | 2012-07-10 | 2012-10-31 | 天津市利顺塑料制品有限公司 | Polypropylene plate for plastic box and machining process of polypropylene plate |
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2014
- 2014-01-03 CN CN201410006505.9A patent/CN103756142B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206376A (en) * | 2010-03-31 | 2011-10-05 | 上海金发科技发展有限公司 | Polypropylene material filled with inorganic mineral powder, and its preparation method and application |
| CN102492225A (en) * | 2011-11-29 | 2012-06-13 | 南京鸿瑞塑料制品有限公司 | Transparent cold resistance high melt-strength polypropylene material used for automobile expansion water tank and its preparation method |
| CN102757600A (en) * | 2012-07-10 | 2012-10-31 | 天津市利顺塑料制品有限公司 | Polypropylene plate for plastic box and machining process of polypropylene plate |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780046A (en) * | 2016-08-31 | 2018-03-09 | 广东协宏无纺布科技有限公司 | A kind of multilayer folding non-woven fabrics |
| CN109265826A (en) * | 2018-09-07 | 2019-01-25 | 淄博天恒纳米新材料科技股份有限公司 | A kind of low temperature resistant plastic uptake polypropene composition of high transparency and preparation method thereof |
| CN110903549A (en) * | 2019-12-04 | 2020-03-24 | 联泓(江苏)新材料研究院有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN110903549B (en) * | 2019-12-04 | 2023-10-13 | 联泓(江苏)新材料研究院有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN115819864A (en) * | 2021-12-07 | 2023-03-21 | 中山市广仁塑料制品有限公司 | Extrusion process of novel water-resistant high-flexibility plastic |
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| CN103756142B (en) | 2017-01-11 |
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