CN108690271A - A kind of micro-foaming polypropylene material and preparation method thereof - Google Patents
A kind of micro-foaming polypropylene material and preparation method thereof Download PDFInfo
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- 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
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- 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
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- 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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- 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
- C08J2423/08—Copolymers of ethene
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- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C08L2205/00—Polymer mixtures characterised by other features
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
A kind of micro-foaming polypropylene material of present invention offer and preparation method thereof, is related to foamed plastic technical field.Micro-foaming polypropylene material of the present invention is made of following raw material:Galapectite nano material, microcapsule foamer, modified polypropene.Raw material is uniformly mixed by the present invention, using the method for injection molding, prepares micro-foaming polypropylene material under the conditions of twice-die-opening, and that the micro-foaming polypropylene material abscess of preparation is dense is uniform, tiny, mechanical performance is excellent.
Description
Technical field
The present invention relates to foamed plastic technical fields, and in particular to a kind of micro-foaming polypropylene material and preparation method thereof.
Background technology
Polypropylene material is now widely used in automobile due to the advantages that its price is low, density is small, comprehensive mechanical property is excellent
Inside and outside gorget domain.And automobile industry is increasingly strong in lightweight, energy-saving and environment-friendly requirement at present.Expanded material undoubtedly becomes such
The preferred material of design, expanded polypropylene material is used for by a few high-end vehicle in the products such as door-plate at present, but existing foaming side
Method is mainly physical blowing, higher to equipment requirement, can not use conventional injection molding machine large-scale promotion.And poly- the third of chemical blowing hair
Since itself characteristic ripe can not be applied, polypropylene material has the following disadvantages alkene material:1, melt strength is relatively low, due to poly-
Propylene is crystalline material, and when being more than fusing point, viscosity declines apparent, can not prop up foam;2, polypropylene material itself is breathed freely
Better performances, foamed gas are easily escaped.So that the hot formability and foam performance of polypropylene material are deteriorated.
Invention content
In view of the shortcomings of the prior art, a kind of micro-foaming polypropylene material of present invention offer and preparation method thereof, solves existing
Have micro-foaming polypropylene material hot formability in technology, foam performance difference technical problem.
In order to achieve the above object, technical scheme of the present invention is achieved by the following technical programs:
A kind of micro-foaming polypropylene material, the micro-foaming polypropylene material are made of the raw material of following parts by weight:Ai Luo
0.01~1 part of stone nano material, 0.01~5 part of microcapsule foamer, 94~99.98 parts of modified polypropene.
Preferably, the general molecular formula of the galapectite nano material is Al2[Si2O5](OH)4·nH2O。
Preferably, the galapectite nano material is crimped by alumina octahedral and oxygen-octahedron lattice mismatch, pipe
Inner wall is alumina octahedral sheet, and outer wall is oxygen-octahedron layer, inner surface Al-OH groups, outer surface O-Si-O bases
Group.
Preferably, the microcapsule foamer is using polyethylene as carrier, and sodium bicarbonate and citric acid coat polyethylene altogether
The inside of carrier forms.
Preferably, the modified polypropene is formed by talc powder filled polypropylene, by 70~90 parts of polypropylene, compatilizer
0-10 parts of POE, 10~20 parts of talcum powder mix.
A kind of preparation method of micro-foaming polypropylene material, includes the following steps:
S1, each raw material for weighing parts by weight are uniformly mixed, and obtain mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
A kind of micro-foaming polypropylene material of present invention offer and preparation method thereof, advantage is compared with prior art:
Micro-foaming polypropylene material hot formability of the present invention is good, foam performance is good, and galapectite (HNTs) is added in raw material and receives
Rice material, the material itself are used as heterogeneous nucleation agent, polyacrylic crystallization time can be made to greatly shorten, and formation is largely distributed thin
Small crystal nucleus, and galapectite (HNTs) nano material plays inhibition to polypropylene sub-chain motion, crystal growth is suppressed, and is had
Uniform, tiny abscess is formed conducive to base-material;Secondly, HNTs material draw ratios are relatively large, have the function of fiber reinforcement, can add
Strength polymer system rigidity, reduces the mobility of melt, and the surfaces HNTs are that the lower silicone hydroxyl of activity and polypropylene pass through molecule
Intermolecular forces combine, and in foaming process, play the role of supporting abscess, improve polyacrylic melt strength, substantially improve poly- third
The frothing percentage of alkene material;
The present invention is directly added in common modifications polypropylene material using raw material microcapsule foamer so that melt is heated
In the process, internal breakup generates gas and forms volume expansion so that abscess is more complete, avoids melt strength in conventional method
It is low lead to problems such as gas largely escape and caused by bubbles collapse rupture, and microcapsule foamer is directly added in common modifications
In polypropylene material can direct injection foaming, expand the application field of expanded polypropylene material.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the embodiment of the present invention pair
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
The every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Raw material selects situation in embodiment:
Polypropylene is the copolymer polypropylene PP EA5076 of company of Basel production;Nanometer HNTs is Zhengzhou Jinyang light ceramic
Co., Ltd produces 20 nanometers of diameter, 500 nanometers of length;Microcapsule foamer, Clariant Chemical Co., Ltd.;Talcum powder Liaoning
The extra large talcum powder AH51105 of Chinese mugwort;POE is the POE8200 of DOW Chemical;Microcapsule foamer is the bicarbonate using polyethylene as carrier
The inside that sodium and citric acid coat polyethylene support altogether forms;The general molecular formula of galapectite nano material is Al2[Si2O5](OH)
4·nH2O, galapectite nano material are crimped by alumina octahedral and oxygen-octahedron lattice mismatch, and inside pipe wall is alumina eight
Face body layer, outer wall are oxygen-octahedron layer, inner surface Al-OH groups, outer surface O-Si-O groups.
Embodiment 1:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:It is 0.5 part of galapectite nano material, micro-
3 parts of capsule foaming agent, 96.5 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,0.5 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 3 parts of microcapsule foamer, modified poly- third
96.5 parts of alkene mixes in proportion, and obtains mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 80 parts of polypropylene, POE5 parts of compatilizer, 15 parts of talcum powder.
Embodiment 2:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:It is 0.8 part of galapectite nano material, micro-
2 parts of capsule foaming agent, 97.2 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,0.8 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 2 parts of microcapsule foamer, modified poly- third
97.2 parts of alkene mixes in proportion, and obtains mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 75 parts of polypropylene, POE8 parts of compatilizer, 17 parts of talcum powder.
Embodiment 3:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:It is 0.3 part of galapectite nano material, micro-
2 parts of capsule foaming agent, 97.7 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,0.3 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 2 parts of microcapsule foamer, modified poly- third
97.7 parts of alkene mixes in proportion, and obtains mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 75 parts of polypropylene, 20 parts of talcum powder.
Embodiment 4:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:1 part of galapectite nano material, micro- glue
5 parts of capsule foaming agent, 96 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,1 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 5 parts of microcapsule foamer, modified polypropene
96 parts mix in proportion, and obtain mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 70 parts of polypropylene, POE10 parts of compatilizer, 20 parts of talcum powder.
Embodiment 5:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:0.01 part of galapectite nano material,
0.01 part of microcapsule foamer, 99.98 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,0.01 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 0.01 part of microcapsule foamer are modified
99.98 parts of polypropylene mixes in proportion, and obtains mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 90 parts of polypropylene, 10 parts of talcum powder.
Embodiment 6:
The present embodiment micro-foaming polypropylene material is made of the raw material of following parts by weight:1 part of galapectite nano material, micro- glue
5 parts of capsule foaming agent, 94 parts of modified polypropene;
The preparation method of the present embodiment micro-foaming polypropylene material, includes the following steps:
S1,1 part of raw material galapectite (HNTs) nano material for weighing parts by weight, 5 parts of microcapsule foamer, modified polypropene
94 parts mix in proportion, and obtain mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In the present embodiment, modified polypropene is mixed by 70 parts of polypropylene, POE10 parts of compatilizer, 20 parts of talcum powder.
Comparative example:
This comparative example micro-foaming polypropylene material is made of the raw material of following parts by weight:3 parts of microcapsule foamer is modified and gathers
97 parts of propylene;
The preparation method of this comparative example micro-foaming polypropylene material, includes the following steps:
S1,3 parts of raw material microcapsule foamer for weighing parts by weight, 97 parts of modified polypropene are mixed in proportion, are obtained
Mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, prepares micro- hair under the conditions of twice-die-opening
Foaming polypropylene material.
In this comparative example, modified polypropene is mixed by 100 parts of polypropylene, POE5 parts of compatilizer, 20 parts of talcum powder.
The different specimen material the performance test results of table 1
As can be seen from Table 1, it is added by galapectite (HNTs) nano material, micro-foaming polypropylene material can get more tiny
Abscess, expansion ratio significantly improves.
In conclusion galapectite (HNTs) nano material, the material are added in micro-foaming polypropylene material feedstock of the present invention
Itself is used as heterogeneous nucleation agent, and polyacrylic crystallization time can be made to greatly shorten, and forms the tiny nucleus being largely distributed, and angstrom Lip river
Stone (HNTs) nano material plays inhibition to polypropylene sub-chain motion, and crystal growth is suppressed, and is conducive to base-material and is formed
Uniformly, tiny abscess;Secondly, HNTs material draw ratios are relatively large, have the function of fiber reinforcement, can reinforce polymeric system
Rigidity, reduces the mobility of melt, and the surfaces HNTs are that the lower silicone hydroxyl of activity and polypropylene pass through intermolecular force knot
It closes, in foaming process, plays the role of supporting abscess, improve polyacrylic melt strength, substantially improve the hair of polypropylene material
Bubble rate.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although ginseng
According to previous embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that:It still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features;And
These modifications or replacements, the spirit and model of various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (6)
1. a kind of micro-foaming polypropylene material, which is characterized in that the micro-foaming polypropylene material by following parts by weight raw material
It is made:0.01~1 part of galapectite nano material, 0.01~5 part of microcapsule foamer, 94~99.98 parts of modified polypropene.
2. micro-foaming polypropylene material according to claim 1, it is characterised in that:The molecule of the galapectite nano material
General formula is Al2[ Si2O5(OH)4·nH2O。
3. micro-foaming polypropylene material according to claim 1 or 2, it is characterised in that:The galapectite nano material by
Alumina octahedral and oxygen-octahedron lattice mismatch crimp, and inside pipe wall is alumina octahedral sheet, and outer wall is oxygen-octahedron
Layer, inner surface Al-OH groups, outer surface O-Si-O groups.
4. micro-foaming polypropylene material according to claim 1, it is characterised in that:The microcapsule foamer is with poly- second
Alkene is carrier, and the inside that sodium bicarbonate and citric acid coat polyethylene support altogether forms.
5. micro-foaming polypropylene material according to claim 1, which is characterized in that the modified polypropene is by talcum powder
Filled polypropylene forms, and is mixed by 70~90 parts of polypropylene, 0-10 parts of compatilizer POE, 10~20 parts of talcum powder.
6. a kind of preparation method of the micro-foaming polypropylene material as described in any in Claims 1 to 5, which is characterized in that including
Following steps:
S1, each raw material for weighing parts by weight are uniformly mixed, and obtain mixed material;
The method that S2, the mixed material for obtaining step S1 use injection molding, it is poly- to prepare fretting map under the conditions of twice-die-opening
Propylene material.
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| CN110358133A (en) * | 2019-07-17 | 2019-10-22 | 江苏锐康新材料科技有限公司 | A kind of acrylate foamed polymer of substitution for PVA collodion and preparation method thereof |
| CN113597443A (en) * | 2019-03-06 | 2021-11-02 | 博里利斯股份公司 | Foamable polyolefin compositions providing increased flexibility |
| CN114316596A (en) * | 2021-12-27 | 2022-04-12 | 合肥墨郎新材料有限公司 | Flame-retardant fire-extinguishing foamed silica gel material and application thereof in power battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113597443A (en) * | 2019-03-06 | 2021-11-02 | 博里利斯股份公司 | Foamable polyolefin compositions providing increased flexibility |
| CN110152387A (en) * | 2019-04-10 | 2019-08-23 | 厦门建霖健康家居股份有限公司 | A kind of pressure-vessel of crack resistence and preparation method thereof |
| CN110358133A (en) * | 2019-07-17 | 2019-10-22 | 江苏锐康新材料科技有限公司 | A kind of acrylate foamed polymer of substitution for PVA collodion and preparation method thereof |
| CN110358133B (en) * | 2019-07-17 | 2021-10-15 | 江苏锐康新材料科技有限公司 | Acrylate foam polymer replacing PVA collodion and preparation method thereof |
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| CN114316596B (en) * | 2021-12-27 | 2023-08-22 | 合肥墨郎新材料有限公司 | Flame-retardant fire-extinguishing foamed silica gel material and application thereof in power battery |
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