CN106566072B - Modified polypropylene composite material and preparation method thereof - Google Patents

Modified polypropylene composite material and preparation method thereof Download PDF

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Publication number
CN106566072B
CN106566072B CN201610920936.5A CN201610920936A CN106566072B CN 106566072 B CN106566072 B CN 106566072B CN 201610920936 A CN201610920936 A CN 201610920936A CN 106566072 B CN106566072 B CN 106566072B
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parts
temperature
powder
area
composite material
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CN106566072A (en
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刘钰馨
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Jiangsu Blue Giant Plastic Co ltd
Nanning Normal University
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Guangxi Teachers College
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    • 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
    • C08L23/12—Polypropene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (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 a kind of modified polypropylene composite materials and preparation method thereof, are made including the following raw material in parts by weight: 70-90 parts of polypropylene, SBS30-35 parts, 1.2-1.5 parts of konjaku powder, 0.5-0.8 parts of beta glucan, 1-2 parts of Long Gu Powder, 2-4 parts of pine and cypress ash, 2-4 parts of far-infared ceramic powder, 3-5 parts of attapulgite, 3-5 parts of wollastonite in powder, 5-7 parts of gas-phase silica, 5-7 parts of titanium dioxide, 1.2-1.5 parts of light stabilizer, 0.8-1.2 parts of coupling agent, 3-5 parts of toughener and 4-7 parts of compatilizer.Not only good weatherability, shock resistance are strong for modified polypropylene composite material of the invention, but also tensile strength and bending property are excellent.

Description

Modified polypropylene composite material and preparation method thereof
Technical field
The present invention relates to technical field of polypropylene.It is more particularly related to which a kind of modified polypropene is compound Material and preparation method thereof.
Background technique
Polypropylene becomes current development speed very fast one of several big general-purpose plastics due to very high comprehensive performance, but Because of the presence for the disadvantages of its is easy to aging, impact resistant strength is poor, PP is seriously hindered in the development and popularization in market.
SBS is the triblock copolymer of s-B-S, has stronger synergistic effect, and flexible chain exists It can be inserted in the big spherocrystal of PP when MODIFIED PP, preferable rub resistance that in addition SBS inherently has, tensile strength, elasticity, With the elastomer-modified PP of SBS, the two interaction is complementary to one another, and is effectively improved the mechanical property of PP.But there is research Show to increase with SBS dosage, the impact strength of the PP/SBS co-mixing system of Jing Yici melting extrusion increases, tensile strength Slowly decline with presentation downward trend, Vicat softening points such as bending properties.Therefore, polypropylene can either be kept originally by finding one kind Excellent performance, and the PP composite material of the mechanical properties such as its weather-proof, anti-impact can be enhanced, allow to meet people more The demand of sample, has a vast market foreground.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of good weatherability, shock resistance are strong, tensile strength and bending property Excellent modified polypropylene composite material.
It is a still further object of the present invention to provide a kind of preparation method of modified polypropylene composite material, this method operation letters It is single, the weatherability and shock resistance of energy service hoisting modified polypropylene composite material.
In order to realize these purposes and other advantages according to the present invention, a kind of modified polypropylene composite material is provided, It is made including the following raw material in parts by weight:
70-90 parts of polypropylene, SBS30-35 parts, 1.2-1.5 parts of konjaku powder, 0.5-0.8 parts of beta glucan, Long Gu Powder 1- 2 parts, 2-4 parts of pine and cypress ash, 2-4 parts of far-infared ceramic powder, 3-5 parts of attapulgite, 3-5 parts of wollastonite in powder, gas-phase silica 5-7 Part, 5-7 parts of titanium dioxide, 1.2-1.5 parts of light stabilizer, 0.8-1.2 parts of coupling agent, 3-5 parts of toughener and 4-7 parts of compatilizer.
Preferably, the modified polypropylene composite material, light stabilizer are ultraviolet absorbing agent UV327 and benzo three Azole adds hindered amine to form with mass ratio for 1:3.
Preferably, the modified polypropylene composite material, coupling agent are methacryloxypropyl triethoxy Silane, toughener are ethylene octene copolymer.
Preferably, the modified polypropylene composite material, compatilizer are maleic anhydride inoculated polypropylene, grafting degree For 25%-30%.
Preferably, the modified polypropylene composite material, Long Gu Powder crushed 400 meshes for keel and obtained, pine Cypress ash is that the obtained ash of pine and cypress branch burning pulverizes and sieves 400 mesh and obtains.
The present invention also provides a kind of preparation methods of modified polypropylene composite material, comprising the following steps:
Step 1: weigh by weight 70-90 parts of polypropylene, SBS30-35 parts, 1.2-1.5 parts of konjaku powder, β-Portugal it is poly- 0.5-0.8 parts sugared, 1-2 parts of Long Gu Powder, 2-4 parts of pine and cypress ash, 2-4 parts of far-infared ceramic powder, 3-5 parts of attapulgite, wollastonite in powder 3-5 parts, 5-7 parts of gas-phase silica, 5-7 parts of titanium dioxide, 1.2-1.5 parts of light stabilizer, 0.8-1.2 parts of coupling agent, toughener 3-5 Part and compatilizer 4-7 parts；
Step 2: raw material each in step 1 is mixed, it is uniformly mixed through high-speed mixer, is once squeezed through double screw extruder Out, it is granulated, dries through pelleter again after circulating water, then be granulated after the secondary extrusion of double screw extruder up to modified poly- Acrylic composite, extruder barrel temperature of each section is successively set twice are as follows: 220 DEG C of area's temperature, 225 DEG C of two area's temperature, Three 230 DEG C of area's temperature, 220 DEG C of four area's temperature, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 210 DEG C of head temperature, host frequency Rate 12.0Hz, blank frequency 13.0Hz, feeding frequency 15.0Hz.
Preferably, the preparation method of the modified polypropylene composite material, secondary extrusion is before to the material after granulation Material is carried out using ultrasonic impact equipment ultrasonic impact, ultrasonic power 0.5-1.0KW, frequency 15-20Hz, and number of shocks is 10-15 times.
The present invention is include at least the following beneficial effects:
1) present invention is improved by addition konjaku powder, gas-phase silica, beta glucan, Long Gu Powder and light stabilizer Polyacrylic weatherability makes modified polypropene material by the way that pine and cypress ash, far-infared ceramic powder, attapulgite, wollastonite in powder is added Material has better impact resistance, and in raw material of the invention each component compatibility and, be uniformly dispersed, so that the modification of preparation is poly- Acrylic composite has excellent tensile property and bending property.
2) method of the invention for preparing modified polypropylene composite material is simple, easily operated, is improved by secondary extrusion The problem of directly adding tensile strength caused by talcum powder and bending property decline.
3) present invention further improves modified polypropylene composite material also by carrying out ultrasonic impact after primary squeeze Shock resistance.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below, to enable those skilled in the art's reference say Bright book text can be implemented accordingly.
It should be noted that experimental method described in following embodiments is unless otherwise specified conventional method, institute Reagent and material are stated, unless otherwise specified, is commercially obtained.
Embodiment 1:
A kind of modified polypropylene composite material is made including the following raw material in parts by weight:
70 parts of polypropylene, SBS30 parts, it is 1.2 parts of konjaku powder, 0.5 part of beta glucan, 1 part of Long Gu Powder, 2 parts of pine and cypress ash, remote 2 parts of infrared ceramic powder, 3 parts of attapulgite, 3 parts of wollastonite in powder, 5 parts of gas-phase silica, 5 parts of titanium dioxide, 1.2 parts of light stabilizer, 0.8 part of coupling agent, 3 parts of toughener and 4 parts of compatilizer.
Wherein, Long Gu Powder crushed 400 meshes for keel and be obtained, and pine and cypress ash is that the ash that pine and cypress branch burning obtains crushed 400 mesh are sieved to obtain.
Light stabilizer is the mixture of ultraviolet absorber and/or hindered amine light stabilizer.
A kind of preparation method of modified polypropylene composite material, comprising the following steps:
Step 1: weighing 70 parts of polypropylene, SBS30 parts, 1.2 parts of konjaku powder, 0.5 part of beta glucan, dragon by weight 1 part of bone meal, pine and cypress grey 2 parts, 2 parts of far-infared ceramic powder, 3 parts of attapulgite, 3 parts of wollastonite in powder, 5 parts of gas-phase silica, titanium white 5 parts of powder, 1.2 parts of light stabilizer, 0.8 part of coupling agent, 3 parts of toughener and 4 parts of compatilizer；
Step 2: raw material each in step 1 is mixed, it is uniformly mixed through high-speed mixer, is once squeezed through double screw extruder Out, it is granulated, dries through pelleter again after circulating water, then be granulated after the secondary extrusion of double screw extruder up to modified poly- Acrylic composite, extruder barrel temperature of each section is successively set twice are as follows: 220 DEG C of area's temperature, 225 DEG C of two area's temperature, Three 230 DEG C of area's temperature, 220 DEG C of four area's temperature, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 210 DEG C of head temperature, host frequency Rate 12.0Hz, blank frequency 13.0Hz, feeding frequency 15.0Hz.
Embodiment 2:
A kind of modified polypropylene composite material is made including the following raw material in parts by weight:
80 parts of polypropylene, 33 parts of SBS, 1.4 parts of konjaku powder, 0.65 part of beta glucan, 1.5 parts of Long Gu Powder, pine and cypress ash 3 Part, 3 parts of far-infared ceramic powder, 4 parts of attapulgite, 4 parts of wollastonite in powder, 6 parts of gas-phase silica, 6 parts of titanium dioxide, light stabilizer 1.4 parts, 1.0 parts of coupling agent, 4 parts of toughener and 6 parts of compatilizer.
Wherein, Long Gu Powder crushed 400 meshes for keel and be obtained, and pine and cypress ash is that the ash that pine and cypress branch burning obtains crushed 400 mesh are sieved to obtain.
Light stabilizer is the mixture of ultraviolet absorber and/or hindered amine light stabilizer.
The preparation method is the same as that of Example 1 for the modified polypropylene composite material of the present embodiment.
Embodiment 3:
A kind of modified polypropylene composite material is made including the following raw material in parts by weight:
90 parts of polypropylene, 35 parts of SBS, 1.5 parts of konjaku powder, 0.8 part of beta glucan, 2 parts of Long Gu Powder, pine and cypress ash 4 parts, 4 parts of far-infared ceramic powder, 5 parts of attapulgite, 5 parts of wollastonite in powder, 7 parts of gas-phase silica, 7 parts of titanium dioxide, light stabilizer 1.5 Part, 1.2 parts of coupling agent, 5 parts of toughener and 7 parts of compatilizer.
Wherein, light stabilizer is ultraviolet absorbing agent UV327 and benzotriazole adds hindered amine with mass ratio to be 1:3 group At.
Wherein, coupling agent is methacryloxypropyl, and toughener is ethylene octene copolymer.
Wherein, compatilizer is maleic anhydride inoculated polypropylene, grafting degree 25%-30%.
Wherein, Long Gu Powder crushed 400 meshes for keel and be obtained, and pine and cypress ash is that the ash that pine and cypress branch burning obtains crushed 400 mesh are sieved to obtain.
The preparation method is the same as that of Example 1 for the modified polypropylene composite material of the present embodiment.
Embodiment 4:
On the basis of embodiment 3, the preparation method of the modified polypropylene composite material is right before secondary extrusion Material after granulation is carried out using ultrasonic impact equipment ultrasonic impact, ultrasonic power 0.5-1.0KW, frequency 15-20Hz, punching Hitting number is 10-15 times.
Comparative example 1:
A kind of modified polypropylene composite material is made including the following raw material in parts by weight:
90 parts of polypropylene, 35 parts of SBS, 7 parts of titanium dioxide, 1.5 parts of light stabilizer, 1.2 parts of coupling agent, 5 parts of toughener and phase Hold 7 parts of agent.
Wherein, light stabilizer is ultraviolet absorbing agent UV327 and benzotriazole adds hindered amine with mass ratio to be 1:3 group At.
Wherein, coupling agent is methacryloxypropyl, and toughener is ethylene octene copolymer.
Wherein, compatilizer is maleic anhydride inoculated polypropylene, grafting degree 25%-30%.
Modified polypropylene composite material is prepared using the method once squeezed, design parameter is the same as embodiment 3.
Comparative example 2:
A kind of modified polypropylene composite material is made including the following raw material in parts by weight:
90 parts of polypropylene, 35 parts of SBS, 7 parts of titanium dioxide, 1.5 parts of light stabilizer, 1.2 parts of coupling agent, 5 parts of toughener and phase Hold 7 parts of agent.
Wherein, light stabilizer is ultraviolet absorbing agent UV327 and benzotriazole adds hindered amine with mass ratio to be 1:3 group At.
Wherein, coupling agent is methacryloxypropyl, and toughener is ethylene octene copolymer.
Wherein, compatilizer is maleic anhydride inoculated polypropylene, grafting degree 25%-30%.
Modified polypropylene composite material is prepared using the method for embodiment 3, design parameter is the same as embodiment 3.
The advantages of in order to illustrate modified polypropylene composite material of the invention, the present inventor by embodiment 3, implement Polypropylene particles material prepared by example 4, comparative example 1 and comparative example 2 is 2~3 hours dry in 90~100 DEG C of convection ovens, so Afterwards dried particulate material is injection moulded sample preparation on injection (mo(u)lding) machine, and carries out the following terms performance detection.
Weatherability test: according to ISO4582-2007, " plastics are exposed to daylight, weathering or laboratory through glass The measurement of color change and performance change after light source " method carries out degradation 3000 hours, wherein embodiment 3 and embodiment 4 color difference is much smaller than 1, and the color difference of comparative example 1 and comparative example 2 is much larger than 1, shows the modification poly- third that method of the invention obtains The good weatherability of alkene composite material is in comparative example 1 and comparative example 2；
Quantitative measurement the results are shown in Table 1, and the specific test method is as follows:
(1) simple beam impact strength is tested: it is carried out by ISO179-1-2000 standard, specimen size is 80 × 10 × 4mm, Notch depth is the one third of sample thickness.
(2) tensile property test: using national standard GB/T1040-2006 " plastic tensile test method " test tensile strength, Elongation at break properties.
(3) bending property is tested: using GB9341-2008 " Plastics-Oetermination of flexural properties method " test bending strength and curved Bent modulus.
(4) heat distortion temperature performance test: using national standard GB/T1634-2004 " plastics bending load heat distortion temperature examination Proved recipe method " test heat distortion temperature performance.
As shown in Table 1, the embodiment of the present invention 3 is compared with the modified polypropylene composite material that the method for embodiment 4 obtains Comparative example 1 and comparative example 2, physical property indices are much higher by, and can be with by the result of comparative example 2 and comparative example 1 Find out, secondary extrusion is higher than the physical property indices once squeezed.
The test result of the different embodiment preparations of table 1
Test item Unit Embodiment 3 Embodiment 4 Comparative example 1 Comparative example 2
Simply supported beam notch impact strength KJ/m2 89 94 65 74
Tensile strength MPa 44 48 22 29
Elongation at break % 76 80 50 60
Bending modulus MPa 1488 1524 850 1179
Bending strength MPa 41 44 25 33
Thermal deformation temperature (1.8MPa) ℃ 118 122 108 111
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and embodiment shown and described herein.

Claims (1)

1. a kind of preparation method of modified polypropylene composite material, which comprises the following steps:
Step 1: weighing 70-90 parts of polypropylene, SBS30-35 parts, 1.2-1.5 parts of konjaku powder, beta glucan by weight 0.5-0.8 parts, 1-2 parts of Long Gu Powder, 2-4 parts of pine and cypress ash, 2-4 parts of far-infared ceramic powder, 3-5 parts of attapulgite, wollastonite in powder 3-5 Part, 5-7 parts of gas-phase silica, 5-7 parts of titanium dioxide, 1.2-1.5 parts of light stabilizer, 0.8-1.2 parts of coupling agent, 3-5 parts of toughener With 4-7 parts of compatilizer；
Step 2: raw material each in step 1 is mixed, it is uniformly mixed through high-speed mixer, is once squeezed out through double screw extruder, It is granulated, dries through pelleter again after circulating water, then be granulated after the secondary extrusion of double screw extruder up to modified poly- third Alkene composite material, extruder barrel temperature of each section is successively set twice are as follows: 220 DEG C of area's temperature, 225 DEG C of two area's temperature, three 230 DEG C of area's temperature, 220 DEG C of four area's temperature, 200 DEG C of five area's temperature, 190 DEG C of six area's temperature, 210 DEG C of head temperature, host frequency 12.0Hz, blank frequency 13.0Hz, feeding frequency 15.0Hz；
The material after granulation is carried out using ultrasonic impact equipment ultrasonic impact, ultrasonic power 0.5- before secondary extrusion 1.0KW, frequency 15-20Hz, number of shocks are 10-15 times.
CN201610920936.5A 2016-10-21 2016-10-21 Modified polypropylene composite material and preparation method thereof Expired - Fee Related CN106566072B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104086882A (en) * 2014-07-03 2014-10-08 合肥杰事杰新材料股份有限公司 Application of needle-like wollastonite served as polypropylene cold-resistant agent and cold-resistant polypropylene material containing needle-like wollastonite

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104086882A (en) * 2014-07-03 2014-10-08 合肥杰事杰新材料股份有限公司 Application of needle-like wollastonite served as polypropylene cold-resistant agent and cold-resistant polypropylene material containing needle-like wollastonite

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