CN109735026A - A kind of PVC foam material for automobile interiors and preparation method thereof - Google Patents
A kind of PVC foam material for automobile interiors and preparation method thereof Download PDFInfo
- Publication number
- CN109735026A CN109735026A CN201910044826.0A CN201910044826A CN109735026A CN 109735026 A CN109735026 A CN 109735026A CN 201910044826 A CN201910044826 A CN 201910044826A CN 109735026 A CN109735026 A CN 109735026A
- Authority
- CN
- China
- Prior art keywords
- parts
- pvc foam
- automobile interiors
- master batch
- antioxidant
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The present invention provides a kind of PVC foam material for automobile interiors and preparation method thereof, is related to material for car interior trim parts technical field.Present invention PVC foam material for automobile interiors includes following raw material: polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, foaming agent, nanometer calcium carbonate, antioxidant, toughener, lubricant.PVC foam material shock resistance weight bearing power with higher for automobile interiors of the invention and good resilience and preferable heat resistance, quality is reliable and stable, the material preparation cost is low, and the strength of materials is high, good toughness, with good processing performance, and the addition of taste removal master batch can effectively reduce the discharge of automotive interior part pernicious gas, peculiar smell, ensure the safety of entire vehicle.
Description
Technical field
The present invention relates to material for car interior trim parts technical fields, and in particular to a kind of PVC foam material for automobile interiors and
Preparation method.
Background technique
With the improvement of people's living standards, automobile has entered ordinary citizen house as the popular vehicles, requirement of the people to automobile is also increasingly
Height, safety and aesthetics have become theme.As Chinese auto industry and automobile market tend to be mature, interior design is increasingly said
Study carefully hommization, such as emphasize interior comfortable and convenience, exquisite fine and smooth texture demand, and then build a kind of impression of high-quality,
Important means as Win Clients.Automotive upholstery many is made of expanded material, and existing this foamed material intensity is not
Enough height, could be improved.The quality of automotive upholstery depends on material, and former car enterprises are mostly used metal, timber and fiber
The materials such as textile, appearance and texture are all not satisfactory.As environmental protection consciousness is increasingly dense, searching is some can to recycle benefit
With, material security performance is high, material easy to process replaces traditional material, have become the research of auto manufacturing, various countries
With the content of exploitation.
Polyvinyl chloride (PVC) resin is a kind of polarity amorphism high polymer, product have good physical property and
Chemical property can be widely applied to the fields such as industry, building, agricultural and daily necessities.The performance of traditional PVC material is
It is unsatisfactory for demand of the people to the product of high quality.Although PVC foam material have waterproof, fire-retardant, acid and alkali-resistance, it is mothproof, heat preservation,
The characteristics such as light, sound insulation, damping, but have the following disadvantages: that as intensity is inadequate, toughness is insufficient, poor processability cannot be fine
Ground meets use for automobile interiors.
Therefore, need it is a kind of it is at low cost, intensity is high, good toughness and the PVC foam material for having both good processing performance, with
Meet people to the performance requirement of PVC material, and then improve the comprehensive performance of PVC material, widens the application field of material.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of PVC foam material for automobile interiors and preparation method thereof.
In order to achieve the above object, technical solution of the present invention is achieved by the following technical programs:
A kind of PVC foam material for automobile interiors, the PVC foam material for automobile interiors include the original of following parts by weight
Material: 60-90 parts of polyvinyl chloride resin, 1-3 parts of silane coupling agent, 5-10 parts of polymethyl methacrylate, 10-16 parts of taste removal master batch, foaming
2-5 parts of agent, 10-17 parts of nanometer calcium carbonate, 1-3 parts of antioxidant, 1-3 parts of toughener, 1-3 parts of lubricant.
Preferably, the PVC foam material for automobile interiors includes the raw material of following parts by weight: 70-85 parts of polyvinyl chloride resin,
1.5-2.5 parts of silane coupling agent, 6-8 parts of polymethyl methacrylate, 12-14 parts of taste removal master batch, 3-4.5 parts of foaming agent, nanometer
12-15 parts of calcium carbonate, 1.6-2.7 parts of antioxidant, 1.5-2.5 parts of toughener, 1.3-2.5 parts of lubricant.
Preferably, the PVC foam material for automobile interiors includes the raw material of following parts by weight: 75 parts of polyvinyl chloride resin, silane
2 parts of coupling agent, 7 parts of polymethyl methacrylate, 13 parts of taste removal master batch, 3.5 parts of foaming agent, 14 parts of nanometer calcium carbonate, antioxidant 2
Part, 2 parts of toughener, 2 parts of lubricant.
Preferably, the melt index of the polymethyl methacrylate is 15-20g/10min.
Preferably, the foaming agent is one of azo-compound, sulfonyl hydrazines compound, nitroso compound.
Preferably, the taste removal master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, extract liquor is multiple
Close carrier gas master batch of the object as filler.
Preferably, the antioxidant is one of Hinered phenols, thioesters, phosphite ester antioxidant, hindered phenol
Class is antioxidant 1010, and thioesters are antioxidant DSTP, and phosphorous acid esters are irgasfos 168.
Preferably, the toughener is one of ABS high glue powder, esters of acrylic acid toughener, haloflex.
Preferably, the lubricant is pentaerythritol stearate, N-N- hexamethylene double hard amides, glycerol monostearate
One of ester.
A kind of preparation method of PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 450-500r/min, mix 6-10min, and discharging obtains
To mixed material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature be 190-210 DEG C, screw speed 450-500r/
Min, engine speed 18-20Hz, vacuum degree are -0.06-0.08MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 3-5min, in injection molding machine
Middle injection molding.
The present invention provides a kind of PVC foam material for automobile interiors and preparation method thereof, and advantage exists compared with prior art
In:
PVC foam material shock resistance weight bearing power with higher for automobile interiors of the invention and good resilience and
Preferable heat resistance, quality is reliable and stable, and the material preparation cost is low, and the strength of materials is high, good toughness, has good
Processing performance, and the addition of taste removal master batch can effectively reduce the discharge of automotive interior part pernicious gas, peculiar smell, ensure whole
The safety of a vehicle.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below 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
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Embodiment 1:
The present embodiment PVC foam material for automobile interiors includes the raw material of following parts by weight: 60 parts of polyvinyl chloride resin, silane are even
Join 1 part of agent, 5 parts of polymethyl methacrylate, 10 parts of taste removal master batch, 2 parts of foaming agent, 10 parts of nanometer calcium carbonate, 1 part of antioxidant,
1 part of toughener, 1 part of lubricant.
Wherein, the melt index of polymethyl methacrylate is 15-20g/10min；Foaming agent is azo-compound；Taste removal
Master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, carrier gas of the extract liquor compound as filler
Master batch；Antioxidant is Hinered phenols antioxidant 1010；Toughener is ABS high glue powder；Lubricant is pentaerythritol stearate.
The preparation method of the present embodiment PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 450r/min, mix 6min, and discharging obtains mixture
Material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature is 190 DEG C, screw speed 450r/min, host turn
Speed is 18Hz, and vacuum degree is -0.06MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 3min, in injection molding machine
Injection molding.
Embodiment 2:
The present embodiment PVC foam material for automobile interiors includes the raw material of following parts by weight: 90 parts of polyvinyl chloride resin, silane are even
Join 3 parts of agent, 10 parts of polymethyl methacrylate, 16 parts of taste removal master batch, 5 parts of foaming agent, 17 parts of nanometer calcium carbonate, 3 parts of antioxidant,
3 parts of toughener, 3 parts of lubricant.
Wherein, the melt index of polymethyl methacrylate is 15-20g/10min；Foaming agent is sulfonyl hydrazines compound；
Taste removal master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, gas of the extract liquor compound as filler
Carrier master batch；Antioxidant is thioester antioxidant DSTP；Toughener is esters of acrylic acid toughener；Lubricant is N-N- hexamethylene
Double hard amides.
The preparation method of the present embodiment PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 500r/min, mix 10min, and discharging is mixed
Material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature is 210 DEG C, screw speed 500r/min, host turn
Speed is 20Hz, vacuum degree 0.08MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 5min, in injection molding machine
Injection molding.
Embodiment 3:
The present embodiment PVC foam material for automobile interiors includes the raw material of following parts by weight: 75 parts of polyvinyl chloride resin, silane are even
Join 2 parts of agent, 7 parts of polymethyl methacrylate, 13 parts of taste removal master batch, 3.5 parts of foaming agent, 14 parts of nanometer calcium carbonate, antioxidant 2
Part, 2 parts of toughener, 2 parts of lubricant.
Wherein, the melt index of polymethyl methacrylate is 15-20g/10min；Foaming agent is nitroso compound；It removes
Taste master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, extract liquor compound is carried as the gas of filler
Body master batch；Antioxidant is phosphite ester antioxidant 168；Toughener is haloflex；Lubricant is glycerin monostearate.
The preparation method of the present embodiment PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 470r/min, mix 8min, and discharging obtains mixture
Material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature is 200 DEG C, screw speed 470r/min, host turn
Speed is 19Hz, and vacuum degree is -0.02MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 4min, in injection molding machine
Injection molding.
Embodiment 4:
The present embodiment PVC foam material for automobile interiors includes the raw material of following parts by weight: 70 parts of polyvinyl chloride resin, silane are even
Join 1.5 parts of agent, 6 parts of polymethyl methacrylate, 12 parts of taste removal master batch, 3 parts of foaming agent, 12 parts of nanometer calcium carbonate, antioxidant 1.6
Part, 1.5 parts of toughener, 1.3 parts of lubricant.
Wherein, the melt index of polymethyl methacrylate is 15-20g/10min；Foaming agent is azo-compound；Taste removal
Master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, carrier gas of the extract liquor compound as filler
Master batch；Antioxidant is Hinered phenols antioxidant 1010；Toughener is ABS high glue powder；Lubricant is pentaerythritol stearate.
The preparation method of the present embodiment PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 460r/min, mix 7min, and discharging obtains mixture
Material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature is 195 DEG C, screw speed 460r/min, host turn
Speed is 19Hz, vacuum degree 0.02MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 3.5min, in injection molding machine
Middle injection molding.
Embodiment 5:
The present embodiment PVC foam material for automobile interiors includes the raw material of following parts by weight: 85 parts of polyvinyl chloride resin, silane are even
Join 2.5 parts of agent, 8 parts of polymethyl methacrylate, 14 parts of taste removal master batch, 4.5 parts of foaming agent, 15 parts of nanometer calcium carbonate, antioxidant
2.7 parts, 2.5 parts of toughener, 2.5 parts of lubricant.
Wherein, the melt index of polymethyl methacrylate is 15-20g/10min；Foaming agent is nitroso compound；It removes
Taste master batch is LDV1040 taste removal master batch, is by porous polymer as carrier, extract liquor compound is carried as the gas of filler
Body master batch；Antioxidant is phosphite ester antioxidant 168；Toughener is haloflex；Lubricant is penta N-N- hexamethylene pair of season
Hard amide.
The preparation method of the present embodiment PVC foam material for automobile interiors, comprising the following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant,
Toughener, lubricant are added sequentially in high speed mixer, setting speed 490r/min, mix 9min, and discharging obtains mixture
Material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion,
Pelletizing, dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature is 205 DEG C, screw speed 490r/min, host turn
Speed is 20Hz, vacuum degree 0.06MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 4min, in injection molding machine
Injection molding.
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, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of PVC foam material for automobile interiors, which is characterized in that the PVC foam material for automobile interiors includes following
The raw material of parts by weight: 60-90 parts of polyvinyl chloride resin, 1-3 parts of silane coupling agent, 5-10 parts of polymethyl methacrylate, taste removal master batch
10-16 parts, 2-5 parts of foaming agent, 10-17 parts of nanometer calcium carbonate, 1-3 parts of antioxidant, 1-3 parts of toughener, 1-3 parts of lubricant.
2. PVC foam material for automobile interiors according to claim 1, which is characterized in that the PVC foam for automobile interiors
Material includes the raw material of following parts by weight: 70-85 parts of polyvinyl chloride resin, 1.5-2.5 parts of silane coupling agent, polymethyl methacrylate
6-8 parts, 12-14 parts of taste removal master batch, 3-4.5 parts of foaming agent, 12-15 parts of nanometer calcium carbonate, 1.6-2.7 parts of antioxidant, toughener
1.5-2.5 1.3-2.5 parts of part, lubricant.
3. PVC foam material for automobile interiors according to claim 1, which is characterized in that the PVC foam for automobile interiors
Material includes the raw material of following parts by weight: 75 parts of polyvinyl chloride resin, 2 parts of silane coupling agent, 7 parts of polymethyl methacrylate, taste removal are female
Grain 13 parts, 3.5 parts of foaming agent, 14 parts of nanometer calcium carbonate, 2 parts of antioxidant, 2 parts of toughener, 2 parts of lubricant.
4. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the polymethyl
The melt index of sour methyl esters is 15-20g/10min.
5. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the foaming agent is even
One of nitrogen compound, sulfonyl hydrazines compound, nitroso compound.
6. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the taste removal master batch is
LDV1040 taste removal master batch is by porous polymer as carrier, carrier gas master batch of the extract liquor compound as filler.
7. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the antioxidant be by
One of phenols, thioesters, phosphite ester antioxidant are hindered, Hinered phenols are antioxidant 1010, and thioesters are antioxygen
Agent DSTP, phosphorous acid esters are irgasfos 168.
8. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the toughener is ABS
One of high glue powder, esters of acrylic acid toughener, haloflex.
9. the according to claim 1 or 2 or 3 PVC foam materials for automobile interiors, it is characterised in that: the lubricant is
One of pentaerythritol stearate, N-N- hexamethylene double hard amide, glycerin monostearates.
10. a kind of preparation method of PVC foam material for automobile interiors as described in claim 1-9 is any, which is characterized in that packet
Include following steps:
S1, each raw material is weighed according to parts by weight；
S2, by polyvinyl chloride resin, silane coupling agent, polymethyl methacrylate, taste removal master batch, nanometer calcium carbonate, antioxidant, toughening
Agent, lubricant are added sequentially in high speed mixer, setting speed 450-500r/min, mix 6-10min, and discharging is mixed
Close material；
S3, the step S2 mixed material prepared is added twin-screw extrude by main feeding hopper, through melting, extrusion, pelletizing,
Dry obtained coarse fodder；Wherein, twin-screw extruder barrel temperature be 190-210 DEG C, screw speed 450-500r/min, host
Revolving speed is 18-20Hz, and vacuum degree is -0.06-0.08MPa；
S4, it the coarse fodder in step S3 is added in high-speed mixer together with foaming agent mixes 3-5min, infused in injection molding machine
It is moulded into type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044826.0A CN109735026A (en) | 2019-01-17 | 2019-01-17 | A kind of PVC foam material for automobile interiors and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910044826.0A CN109735026A (en) | 2019-01-17 | 2019-01-17 | A kind of PVC foam material for automobile interiors and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109735026A true CN109735026A (en) | 2019-05-10 |
Family
ID=66365168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910044826.0A Pending CN109735026A (en) | 2019-01-17 | 2019-01-17 | A kind of PVC foam material for automobile interiors and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109735026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512260A (en) * | 2021-08-09 | 2021-10-19 | 扬州嘉坤新能源有限公司 | Injection molding process of high-strength large-size modified PVC interior trim part |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571213A (en) * | 2013-10-24 | 2014-02-12 | 合肥会通新材料有限公司 | Polypropylene composite material filled and strengthened by wood fiber for automotive upholstery and preparation method thereof |
| CN108148281A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of low smell regenerating polypropylene composite material adornd for automobile interior exterior and preparation method thereof |
| CN109161132A (en) * | 2018-08-17 | 2019-01-08 | 山东汇丰木塑型材股份有限公司 | Polyvinyl chloride automotive trim panel and preparation method thereof |
-
2019
- 2019-01-17 CN CN201910044826.0A patent/CN109735026A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571213A (en) * | 2013-10-24 | 2014-02-12 | 合肥会通新材料有限公司 | Polypropylene composite material filled and strengthened by wood fiber for automotive upholstery and preparation method thereof |
| CN108148281A (en) * | 2016-12-05 | 2018-06-12 | 合肥杰事杰新材料股份有限公司 | A kind of low smell regenerating polypropylene composite material adornd for automobile interior exterior and preparation method thereof |
| CN109161132A (en) * | 2018-08-17 | 2019-01-08 | 山东汇丰木塑型材股份有限公司 | Polyvinyl chloride automotive trim panel and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113512260A (en) * | 2021-08-09 | 2021-10-19 | 扬州嘉坤新能源有限公司 | Injection molding process of high-strength large-size modified PVC interior trim part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101531770B (en) | Preparation and application of open-cell foamed polyolefin | |
| CN106883490A (en) | Fretting map master batch and preparation method thereof and refrigerator foaming plate | |
| CN102675774B (en) | PVC (polyvinyl chloride) composite material modified foaming agent, micro foaming PVC composite material and preparation method thereof | |
| CN104742465B (en) | Scratch-resistant co-extruded plastic-wood profile and preparation method thereof | |
| US6391233B1 (en) | Method of producing a porous product | |
| CN105001509B (en) | A kind of great surface quality polypropylene micro-foaming material and preparation method thereof | |
| CA2592026A1 (en) | Thermoplastic compositions and method of use thereof for molded articles | |
| CN107286475A (en) | A kind of PP foam material and preparation method thereof | |
| CN105131501A (en) | Foaming master batch for ABS microcellular foaming material and preparation method thereof | |
| CN109735026A (en) | A kind of PVC foam material for automobile interiors and preparation method thereof | |
| CN109517262A (en) | A kind of supercritical fluid foaming method of whole process pressure maintaining | |
| CN103773042B (en) | A kind of bamboo powder plastic-wood section and preparation method thereof | |
| CN110343336A (en) | A kind of great surface quality polypropylene micro foaming composite material and preparation method thereof | |
| CN108129776A (en) | A kind of novel wood-plastic composite board material and preparation method thereof | |
| EP3730486B1 (en) | Heat resistant polylactic acid continuous extrusion foaming material and preparation method therefor | |
| CN101955611A (en) | Straw powder and polypropylene composite wood-plastic material for injection molding | |
| CN114085455A (en) | Low-density flame-retardant polypropylene foam material and preparation method thereof | |
| CN114316311A (en) | Foamed composite material and preparation method thereof | |
| CN110395031B (en) | Puncture-resistant film bag with double-layer structure for fresh food transportation and preparation method thereof | |
| CN109721832A (en) | A kind of automobile low-odor polypropylene ene compositions and preparation method thereof | |
| CN111171366A (en) | Low-density polypropylene bead foam and preparation method and application thereof | |
| CN112759830A (en) | Polypropylene composition, foam prepared therefrom, process for producing the foam and artificial leather obtained therefrom | |
| CN111171585B (en) | Microporous high-expansion adhesive tape and preparation method thereof | |
| CN106905586A (en) | Fretting map functional agglomerate composition and preparation method thereof and refrigerator foaming plate | |
| CN111187464A (en) | EPOE (ethylene propylene oxide) synthetic foamed high-elastic novel sole material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
|
| RJ01 | Rejection of invention patent application after publication |