CN110372955A - A kind of low smell MODIFIED PP plastics and preparation method thereof - Google Patents
A kind of low smell MODIFIED PP plastics and preparation method thereof Download PDFInfo
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- CN110372955A CN110372955A CN201910644942.6A CN201910644942A CN110372955A CN 110372955 A CN110372955 A CN 110372955A CN 201910644942 A CN201910644942 A CN 201910644942A CN 110372955 A CN110372955 A CN 110372955A
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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
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K3/32—Phosphorus-containing 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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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
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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Abstract
The present invention provides a kind of low smell MODIFIED PP plastics and preparation method thereof, belong to polypropylene material technical field, the plastics comprise the following components in parts by weight component: 40~90 parts of polypropylene, 10~20 parts of inorganic filler, 5~15 parts of halogen-free flame retardants, 2~5 parts of odor adsorption agent, 0.5~2 part of antioxidant, 0.1~1 part of coupling agent, wherein the odor adsorption agent is the mixture of molecular sieve and diatomite.The present invention is combined using odor adsorption agent with the production technology vacuumized, can substantially reduce the smell of MODIFIED PP plastics, and the dosage of odor adsorption agent is also relatively fewer；Furthermore in the preparation process of MODIFIED PP plastics, it is passed through inert gas or nitrogen not only to exclude oxygen, to reduce MODIFIED PP plastics thermo-oxidative ageing, reduce the generation of smell, and use water ring pelletizing, it also avoids generating thermo-oxidative ageing under the high temperature conditions, it helps reduce the smell of MODIFIED PP plastics.
Description
Technical field
The invention belongs to polypropylene material technical fields, and in particular to a kind of low smell MODIFIED PP plastics and its preparation side
Method.
Background technique
In recent years, polypropylene (PP) plastics are because of its good comprehensive performance, in automotive field using more and more extensive.For
Enable PP plastics preferably to meet car gage, often needs to add substances such as antioxidant, elastomer etc. and be modified, but change
Although property PP plastics have met corresponding requirement in each service performance, MODIFIED PP plastics can all discharge to varying degrees
Niff out influences interior air environment, can also have an impact to the health of driver and passenger, and with people's ring
Guarantor gradually increases with health perception, and people are also increasingly stringenter the requirement in terms of MODIFIED PP plastics smell.Therefore, it is badly in need of one
Kind is able to solve the existing low smell MODIFIED PP plastics and preparation method thereof asked.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of low smell MODIFIED PP plastics and its preparation sides
Method.
The present invention provides the following technical solutions:
A kind of low smell MODIFIED PP plastics and preparation method thereof, comprise the following components in parts by weight: 40~90 parts of polypropylene,
10~20 parts of inorganic filler, 5~15 parts of halogen-free flame retardants, 2~5 parts of odor adsorption agent, 0.5~2 part of antioxidant, coupling agent 0.1
~1 part；
Wherein, the halogen-free flame retardants be one of ammonium polyphosphate, pentaerythrite, melamine or more than one
Mixture, the odor adsorption agent are the mixture of molecular sieve and diatomite, and the antioxidant is antioxidant 1010.
Preferably, the polypropylene is one of homopolypropylene or copolymer polypropylene or two kinds of mixture.
Preferably, the inorganic filler is using one of talcum powder, mica powder, glass fibre or more than one is mixed
Close object.
Preferably, the mass ratio of the molecular sieve in the odor adsorption agent and the diatomite is 1:1~5.
A kind of low smell MODIFIED PP plastics preparation method, comprising the following steps:
S1, according to the weight ratio, weighs each raw material；
S2, polypropylene and inorganic filler are placed in high-speed mixer, then smell is added in 0.5~3min of mixed at high speed
Adsorbent, 3~8min of mixed on low speed sequentially add halogen-free flame retardants and coupling agent, and 3~8min of mixed on low speed finally adds again
Enter antioxidant, 0.5~3min of mixed at high speed obtains premix；
It is continually fed into inert gas or nitrogen in S3, double screw extruder, and double spiral shells are added in the premix in S1 step
It in the loading hopper of bar extruder, is granulated through melting extrusion, wherein the processing temperature of double screw extruder is 185~220 DEG C, premix
Expect that the residence time in screw rod is 3~5min, extrusion pressure is 3~15MPa, and when double screw extruder starts discharging,
Evacuator is opened, controlling the vacuum degree in double screw extruder machine barrel is -0.02~-0.05MPa；
S4, the premix water ring pelletizing after the double screw extruder in S3 step squeezes out, then through vibrating screen sorting, boiling
Bed heat drying, can be obtained target product.
Preferably, the revolving speed of the mixed on low speed in S2 step is 100-600r/min, and the revolving speed of mixed at high speed is 1000-
2000r/min。
The beneficial effects of the present invention are:
Present invention uses odor adsorption agent prepared by molecular sieve and diatom earth mixtures, the holes of molecular sieve and diatomite
It is abundant, smell is assisted in removing, and odor adsorption agent is combined with the production technology vacuumized, MODIFIED PP plastics can be substantially reduced
Smell, and relatively general without using the production technology vacuumized, the dosage of odor adsorption agent is also relatively fewer；In addition, changing
In the preparation process of property PP plastics, inert gas or nitrogen are passed through not only to exclude oxygen, to reduce the hot oxygen of MODIFIED PP plastics
Aging reduces the generation of smell, and uses water ring pelletizing, also avoids generating thermo-oxidative ageing under the high temperature conditions, to have
Help reduce the smell of MODIFIED PP plastics；MODIFIED PP plastics prepared by the present invention are while guaranteeing low smell, every mechanics
Performance meets the requirements, and also has excellent flame retardant property；Preparation process of the invention is simple, easily operated.
Specific embodiment
Embodiment 1
A kind of low smell MODIFIED PP plastics of the invention, comprise the following components in parts by weight: 70 parts of homopolypropylene, talcum
15 parts of powder, 5 parts of ammonium polyphosphate, 3 parts of odor adsorption agent, 0.8 part of antioxidant 1010,0.2 part of coupling agent, odor adsorption agent is point
The mass ratio of the mixture of son sieve and diatomite, molecular sieve and the diatomite is 1:1.
A kind of low smell MODIFIED PP plastics preparation method, comprising the following steps:
S1, according to the weight ratio, weighs each raw material；
S2, homopolypropylene and talcum powder are placed in high-speed mixer, high speed 1500r/min mixing 1min, then plus
Enter odor adsorption agent, low speed 500r/min mixing 3min sequentially adds ammonium polyphosphate and coupling agent, low speed 500r/min mixing
5min, finally adds antioxidant 1010, and high speed 1500r/min mixing 0.5min obtains premix；
It is continually fed into inert gas or nitrogen in S3, double screw extruder, and double spiral shells are added in the premix in S1 step
It in the loading hopper of bar extruder, is granulated through melting extrusion, wherein the processing temperature of double screw extruder is 190 DEG C, and premix exists
Residence time in screw rod is 3~5min, extrusion pressure 8MPa, and when double screw extruder starts discharging, opens and take out very
Empty machine, controlling the vacuum degree in double screw extruder machine barrel is -0.02~-0.05MPa；
S4, the premix water ring pelletizing after the double screw extruder in S3 step squeezes out, then through vibrating screen sorting, boiling
Bed heat drying, can be obtained target product.
Embodiment 2
A kind of low smell MODIFIED PP plastics of the invention, comprise the following components in parts by weight: 80 parts of homopolypropylene, mica
15 parts of powder, 5 parts of pentaerythrite, 4 parts of odor adsorption agent, 0.6 part of antioxidant 1010,0.3 part of coupling agent, odor adsorption agent is point
The mass ratio of the mixture of son sieve and diatomite, molecular sieve and the diatomite is 1:2.
A kind of low smell MODIFIED PP plastics preparation method, comprising the following steps:
S1, according to the weight ratio, weighs each raw material；
S2, homopolypropylene and talcum powder are placed in high-speed mixer, high speed 1500r/min mixing 1min, then plus
Enter odor adsorption agent, low speed 500r/min mixing 3min sequentially adds ammonium polyphosphate and coupling agent, low speed 500r/min mixing
5min, finally adds antioxidant 1010, and high speed 1500r/min mixing 0.5min obtains premix；
It is continually fed into inert gas or nitrogen in S3, double screw extruder, and double spiral shells are added in the premix in S1 step
It in the loading hopper of bar extruder, is granulated through melting extrusion, wherein the processing temperature of double screw extruder is 200 DEG C, and premix exists
Residence time in screw rod is 3~5min, extrusion pressure 8MPa, and when double screw extruder starts discharging, opens and take out very
Empty machine, controlling the vacuum degree in double screw extruder machine barrel is -0.02~-0.05MPa；
S4, the premix water ring pelletizing after the double screw extruder in S3 step squeezes out, then through vibrating screen sorting, boiling
Bed heat drying, can be obtained target product.
Embodiment 3
A kind of low smell MODIFIED PP plastics of the invention, comprise the following components in parts by weight: 80 parts of homopolypropylene, talcum
15 parts of powder, 5 parts of ammonium polyphosphate, 4 parts of odor adsorption agent, 0.6 part of antioxidant 1010,0.3 part of coupling agent, odor adsorption agent is point
The mass ratio of the mixture of son sieve and diatomite, molecular sieve and the diatomite is 1:2.
A kind of low smell MODIFIED PP plastics preparation method, comprising the following steps:
S1, according to the weight ratio, weighs each raw material；
S2, homopolypropylene and talcum powder are placed in high-speed mixer, high speed 1500r/min mixing 1min, then plus
Enter odor adsorption agent, low speed 500r/min mixing 3min sequentially adds ammonium polyphosphate and coupling agent, low speed 500r/min mixing
5min, finally adds antioxidant 1010, and high speed 1500r/min mixing 0.5min obtains premix；
It is continually fed into inert gas or nitrogen in S3, double screw extruder, and double spiral shells are added in the premix in S1 step
It in the loading hopper of bar extruder, is granulated through melting extrusion, wherein the processing temperature of double screw extruder is 190 DEG C, and premix exists
Residence time in screw rod is 3~5min, extrusion pressure 8MPa, and when double screw extruder starts discharging, opens and take out very
Empty machine, controlling the vacuum degree in double screw extruder machine barrel is -0.02~-0.05MPa；
S4, the premix water ring pelletizing after the double screw extruder in S3 step squeezes out, then through vibrating screen sorting, boiling
Bed heat drying, can be obtained target product.
Modified polypropylene material progress injection molding is made in embodiment 1-3, test bars are prepared, then according to GB/
T1040 tests tensile strength, according to GB/T9341 tested for flexural modulus, oxygen index (OI) is tested according to GB/T5454, according to VDA270
Oder levels are tested, concrete outcome is as shown in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Tensile strength/(MPa) | 28 | 31 | 30 |
| Bending modulus/(MPa) | 1850 | 2100 | 2010 |
| Oxygen index (OI)/(%) | 25 | 27 | 28 |
| Smell/(grade) | 3 | 2 | 2 |
Wherein the bigger grade of smell, illustrates that the smell of product is bigger, from table 1 it follows that prepared by the present invention change
Property PP plastics have lower smell.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of low smell MODIFIED PP plastics, which is characterized in that comprise the following components in parts by weight: 40~90 parts of polypropylene, nothing
10~20 parts of machine filler, 5~15 parts of halogen-free flame retardants, 2~5 parts of odor adsorption agent, 0.5~2 part of antioxidant, coupling agent 0.1~1
Part；
Wherein, the halogen-free flame retardants is one of ammonium polyphosphate, pentaerythrite, melamine or more than one mixing
Object, the odor adsorption agent are the mixture of molecular sieve and diatomite, and the antioxidant is antioxidant 1010.
2. a kind of low smell MODIFIED PP plastics according to claim 1, which is characterized in that the polypropylene be homopolypropylene or
One of copolymer polypropylene or two kinds of mixture.
3. a kind of low smell MODIFIED PP plastics according to claim 1, which is characterized in that the inorganic filler using talcum powder,
One of mica powder, glass fibre or more than one mixture.
4. a kind of low smell MODIFIED PP plastics according to claim 1, which is characterized in that described point in the odor adsorption agent
The mass ratio of son sieve and the diatomite is 1:1~5.
5. a kind of preparation method of low smell MODIFIED PP plastics, which comprises the following steps:
S1, according to the weight ratio, weighs each raw material；
S2, polypropylene and inorganic filler are placed in high-speed mixer, then odor adsorption is added in 0.5~3min of mixed at high speed
Agent, 3~8min of mixed on low speed sequentially add halogen-free flame retardants and coupling agent, and 3~8min of mixed on low speed is finally added anti-
Oxidant, 0.5~3min of mixed at high speed, obtains premix；
It is continually fed into inert gas or nitrogen in S3, double screw extruder, and twin-screw is added in the premix in S1 step and is squeezed
It out in the loading hopper of machine, is granulated through melting extrusion, wherein the processing temperature of double screw extruder is 185~220 DEG C, and premix exists
Residence time in screw rod is 3~5min, and extrusion pressure is 3~15MPa, and when double screw extruder starts discharging, is opened
Evacuator, controlling the vacuum degree in double screw extruder machine barrel is -0.02~-0.05MPa；
S4, the premix water ring pelletizing after the double screw extruder in S3 step squeezes out, then add through vibrating screen sorting, ebullated bed
Temperature is dry, and target product can be obtained.
6. a kind of preparation method of low smell MODIFIED PP plastics according to claim 5, which is characterized in that the low speed in S2 step
Mixed revolving speed is 100-600r/min, and the revolving speed of mixed at high speed is 1000-2000r/min.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304829A (en) * | 2020-04-28 | 2020-06-19 | 辽宁东铄新材料科技有限公司 | Preparation method of odorless melt-blown fabric |
| CN112225991A (en) * | 2020-10-16 | 2021-01-15 | 江苏中恒宠物用品股份有限公司 | Low-odor PP plastic for pets and preparation method thereof |
| CN112454727A (en) * | 2020-12-17 | 2021-03-09 | 台州学院 | Method for reducing odor of slush molding skin of automobile instrument panel |
| CN113088003A (en) * | 2021-04-01 | 2021-07-09 | 昆山阿基里斯新材料科技有限公司 | Odor improving method for automotive upholstery and cladding piece |
| CN113717449A (en) * | 2021-08-27 | 2021-11-30 | 张家港众辉医用塑料科技有限公司 | Material of slow-release antioxidant container and preparation method thereof |
| CN113912991A (en) * | 2021-09-26 | 2022-01-11 | 上海日之升科技有限公司 | Rapid crystallization, low diffusion and high toughness PET material and preparation method thereof |
| CN115044131A (en) * | 2022-06-15 | 2022-09-13 | 一汽丰田汽车(成都)有限公司长春丰越分公司 | Low-odor-emission polypropylene plastic and preparation method thereof |
| CN116178838A (en) * | 2022-12-16 | 2023-05-30 | 中国第一汽车股份有限公司 | Modified polypropylene material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832574A (en) * | 2016-12-27 | 2017-06-13 | 天津金发新材料有限公司 | Low smell low-density lower shrinkage talc powder filled polypropylene material and preparation method thereof |
| CN109627789A (en) * | 2018-11-02 | 2019-04-16 | 浙江耀隆塑业有限公司 | Thermoplastic elastic material of car room and preparation method thereof |
-
2019
- 2019-07-17 CN CN201910644942.6A patent/CN110372955A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832574A (en) * | 2016-12-27 | 2017-06-13 | 天津金发新材料有限公司 | Low smell low-density lower shrinkage talc powder filled polypropylene material and preparation method thereof |
| CN109627789A (en) * | 2018-11-02 | 2019-04-16 | 浙江耀隆塑业有限公司 | Thermoplastic elastic material of car room and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304829A (en) * | 2020-04-28 | 2020-06-19 | 辽宁东铄新材料科技有限公司 | Preparation method of odorless melt-blown fabric |
| CN112225991A (en) * | 2020-10-16 | 2021-01-15 | 江苏中恒宠物用品股份有限公司 | Low-odor PP plastic for pets and preparation method thereof |
| CN112454727A (en) * | 2020-12-17 | 2021-03-09 | 台州学院 | Method for reducing odor of slush molding skin of automobile instrument panel |
| CN113088003A (en) * | 2021-04-01 | 2021-07-09 | 昆山阿基里斯新材料科技有限公司 | Odor improving method for automotive upholstery and cladding piece |
| CN113717449A (en) * | 2021-08-27 | 2021-11-30 | 张家港众辉医用塑料科技有限公司 | Material of slow-release antioxidant container and preparation method thereof |
| CN113912991A (en) * | 2021-09-26 | 2022-01-11 | 上海日之升科技有限公司 | Rapid crystallization, low diffusion and high toughness PET material and preparation method thereof |
| CN115044131A (en) * | 2022-06-15 | 2022-09-13 | 一汽丰田汽车(成都)有限公司长春丰越分公司 | Low-odor-emission polypropylene plastic and preparation method thereof |
| CN116178838A (en) * | 2022-12-16 | 2023-05-30 | 中国第一汽车股份有限公司 | Modified polypropylene material and preparation method thereof |
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Application publication date: 20191025 |