CN107141599A - A kind of MODIFIED PP foaming reinforcing material and preparation method thereof - Google Patents

A kind of MODIFIED PP foaming reinforcing material and preparation method thereof Download PDF

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Publication number
CN107141599A
CN107141599A CN201710474885.2A CN201710474885A CN107141599A CN 107141599 A CN107141599 A CN 107141599A CN 201710474885 A CN201710474885 A CN 201710474885A CN 107141599 A CN107141599 A CN 107141599A
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modified
areas
foaming
reinforcing material
parts
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陶宇
翁亚楠
朱建
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Changchang Tanrun New Material Co Ltd
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Changchang Tanrun New Material Co Ltd
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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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J9/10—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 nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • 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
    • C08J2323/12—Polypropene
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention belongs to field of high polymer material modification, and in particular to a kind of MODIFIED PP foaming reinforcing material and preparation method thereof.MODIFIED PP foaming reinforcing material is made up of MODIFIED PP particle and foaming master batch；Wherein, MODIFIED PP particle is made up of PP, inorganic mineral extenders, toughener, short glass fiber, antioxidant 1010, surfactant；Foaming master batch is made up of EVA, talcum powder, foaming agent, blowing promotor, crosslinking agent, assistant crosslinking agent, antioxidant 1010.The present invention first carries out enhancing modification to PP, chemical blowing is carried out again, so that the PP expanded materials prepared both have low-density, but also with good tensile strength, bending strength and impact strength, it can be used for substituting do not foamed on current the automobile door-plate and the part such as instrument desk of PP preparations, play the purpose such as loss of weight, heat-insulated, noise reduction.

Description

A kind of MODIFIED PP foaming reinforcing material and preparation method thereof
Technical field
The invention belongs to field of high polymer material modification, and in particular to a kind of MODIFIED PP foaming reinforcing material and its system Preparation Method.
Background technology
Foamed plastics has the advantages that light weight, heat-insulated, sound insulation, buffering, specific strength are high.Therefore packaging, industry, agricultural, It is used widely in the fields such as communications and transportation, war industry, aerospace industry and commodity.China was steeped since the 1990s The development of foam plastics is also very rapid, and principal item has that poly- ammonia west speech polyurethane (PU) be soft, rigid foam, polystyrene And foam polyolefin material (PS).But PU can produce harmful isocyanates residue in foaming process, simultaneously It can not recycle；And the without putrefaction of foam PS products waste, difficult recovery, cause " white pollution ", the European Economic Community in 1991 Enforceable " packaging rule " has been formulated, foam PS is included in " avoiding using " scope.Environmental protection organization of the United Nations is it is determined that arrive Stop production in worldwides in 2005 and use foam PS.Now people use excellent performance, make the hair in recycling Foaming polypropylene (PP) replaces other foamed materials in many fields.
Polypropylene is a kind of crystalline polymer, and its foaming can only be carried out near crystalline melt point, more than fusing point melt viscosity It is rapid to decline.The melt strength of general purpose polypropylene resin is very low, and foaming is very because of difficulty.The research of polypropylene expanded technology, Exploitation and popularization and application, as various countries' focus of attention.
Current automobile door panel module, instrument desk module are mostly the common injections of material using modified polypropylene plastic as raw material Moulding process is prepared from.This common raw material make it that article texture is close, close based on PP and filler, after injection molding Degree is high, weight is big, adds the materials and cost of product, is unfavorable for current automotive light weight technology design concept, and product surface Easily there are the defects such as creep, shrink mark, had a strong impact on the outward appearance and quality of product.Simultaneously because this close product of quality Can not heat-insulated well and sound insulation so that another attached one layer of thermal and sound insulating materials is needed on product, increases cost, complex process. Thus foaming PP materials then can be very good to solve these problems.Although existing PP expanded materials have low close in the market Degree, but not good physical and mechanical property.The invention discloses a kind of MODIFIED PP foaming reinforcing material and its preparation side Method, it has the characteristic such as low-density, high intensity, weather-proof, ageing-resistant, available for packing, automobile, buffer pad, sqouynd absorption lowering noise etc. Field.Be particularly useful for substituting do not foamed on current the automobile door-plate and the part such as instrument desk of PP preparations, play loss of weight, every The purposes such as heat, noise reduction.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to carry out enhancing modification to PP, then chemical hair is carried out Bubble, prepares low-density enhancing PP expanded materials；So that the PP expanded materials prepared both have low-density, but also with good Tensile strength, bending strength and impact strength, can be used for substituting do not foamed on current automobile PP preparation door-plate and instrument desk Deng part, the purpose such as loss of weight, heat-insulated, noise reduction is played.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of MODIFIED PP foaming reinforcing material, described MODIFIED PP foams reinforcing material by MODIFIED PP particle and foaming master batch Composition, both mass ratioes are 100:(4~9).
Specifically, above-mentioned MODIFIED PP particle each component is according to the mass fraction：
PP：50~60 parts
Inorganic mineral extenders：30 parts
Toughener：5~16 parts
Short glass fiber：3~5 parts
Antioxidant 1010：0.2 part
Surfactant：0.2 part.
Specifically, above-mentioned PP 1~3g/10min of melt index.
Specifically, above-mentioned inorganic mineral extenders are that talcum powder, montmorillonite and kaolin example in mass ratio are 2:0.5: 0.5 composition.
Specifically, above-mentioned toughener is EVA and EPDM examples in mass ratio are 1:1 composition.
Specifically, above-mentioned surfactant is stearic acid.
Specifically, above-mentioned foaming master batch each component is according to the mass fraction：
EVA：45~60 parts
Talcum powder：20~30 parts
Foaming agent：10~20 parts
Blowing promotor：2~5 parts
Crosslinking agent：0.5 part
Assistant crosslinking agent：0.2 part
Antioxidant 1010；0.3 part.
Specifically, above-mentioned EVA is VA contents 28%, and MI is 40 E.
Specifically, above-mentioned foaming agent is azodicarbonamide；The blowing promotor is zinc oxide；The crosslinking agent was BP；The assistant crosslinking agent is divinylbenzene.
A kind of preparation method of MODIFIED PP foaming reinforcing material, specifically includes following steps：
(1) MODIFIED PP particle is prepared, raw material is weighed according to proportioning, extruding pelletization, extrusion are carried out using double screw extruder Ji Ge areas temperature：One 150 DEG C of area, two 160 DEG C of areas, three 175 DEG C of areas, four 180 DEG C of areas, five 180 DEG C of areas, six 180 DEG C of areas, 7th area 180 DEG C, eight 180 DEG C of areas, nine 190 DEG C of areas, 180 DEG C of head；
(2) foaming master batch is prepared, raw material is weighed according to proportioning, extruding pelletization, extruder are carried out using double screw extruder Each area's temperature：One area is not heated, two 60 DEG C of areas, three 70 DEG C of areas, four 85 DEG C of areas, five 85 DEG C of areas, six 90 DEG C of areas, seven 85 DEG C of areas, eight 80 DEG C of area, nine 80 DEG C of areas, 80 DEG C of head；
(3) foaming master batch prepared by the MODIFIED PP particle and step (2) for weighing step (1) preparation in certain mass ratio, Injection molding is carried out using injection machine, each section of temperature of injection machine is 175 DEG C~190 DEG C.
The device have the advantages that：
(1) modifying agent of the invention by adding different types of modifying agent and different ratio, is obtaining low-density PP The physical and mechanical property of material is ensure that while expanded material.The good reinforcing material of increase short glass fiber energy, but short glass fiber Addition be unfavorable for the foaming of material, be modified material present invention uses toughener (EVA/EPDM) to solve this technical barrier Material.Found by a variety of proportion research, the addition of toughener can solve the problem that short glass fiber is unfavorable for foaming.
(2) foaming master batch of the present invention not only contributes to low temperature granulation, moreover it is possible to well using EVA as base material Promote the scattered of powder, be conducive to material to obtain the foaming of bigger multiplying power.
(3) inventive formulation raw material is easy to get, with low cost；Preparation method is simple to operate, and process conditions are easy to control, run into This is low, and production efficiency is high, the good product performance of preparation, can be used for substituting do not foamed on current the automobile door-plate and instrument of PP preparations The parts such as table platform, play the purpose such as loss of weight, heat-insulated, noise reduction.
Embodiment
Presently in connection with embodiment, the present invention is further detailed explanation.
Embodiment 1
A kind of MODIFIED PP foaming reinforcing material is made up of MODIFIED PP particle and foaming master batch, and both mass ratioes are 100:4.
Wherein, described MODIFIED PP particle each component is according to the mass fraction：
PP：50 parts
Inorganic mineral extenders：30 parts
Toughener：16 parts
Short glass fiber：5 parts
Antioxidant 1010：0.2 part
Stearic acid：0.2 part.
Wherein, described foaming master batch each component is according to the mass fraction：
EVA：45 parts
Talcum powder：30 parts
Azodicarbonamide (AC)：20 parts
Zinc oxide：5 parts
Benzoyl peroxide (BPO)：0.5 part
Divinylbenzene：0.2 part
Antioxidant 1010；0.3 part.
Described PP melt index 1g/10min.
Described inorganic mineral extenders are that talcum powder, montmorillonite and kaolin example in mass ratio are 2:0.5:0.5 composition.
Described toughener is EVA and EPDM examples in mass ratio are 1:1 composition.
Described EVA is VA contents 28%, and MI is 40 polyvinyl acetate.
Further, a kind of preparation method of MODIFIED PP described above foaming reinforcing material, specifically includes following steps：
(1) MODIFIED PP particle is prepared, raw material is weighed according to proportioning, extruding pelletization, extrusion are carried out using double screw extruder Ji Ge areas temperature：One 150 DEG C of area, two 160 DEG C of areas, three 175 DEG C of areas, four 180 DEG C of areas, five 180 DEG C of areas, six 180 DEG C of areas, 7th area 180 DEG C, eight 180 DEG C of areas, nine 190 DEG C of areas, 180 DEG C of head；
(2) foaming master batch is prepared, raw material is weighed according to proportioning, extruding pelletization, extruder are carried out using double screw extruder Each area's temperature：One area is not heated, two 60 DEG C of areas, three 70 DEG C of areas, four 85 DEG C of areas, five 85 DEG C of areas, six 90 DEG C of areas, seven 85 DEG C of areas, eight 80 DEG C of area, nine 80 DEG C of areas, 80 DEG C of head；
(3) foaming master batch prepared by the MODIFIED PP particle and step (2) for weighing step (1) preparation in certain mass ratio, Injection molding is carried out using injection machine, each section of temperature of injection machine is 175 DEG C~190 DEG C.
Embodiment 2-4, comparative example 1-7 are substantially the same manner as Example 1, and difference is table 1.
Table 1
MODIFIED PP and foaming master batch are granulated respectively according to above example using screw extruder.
MODIFIED PP particle and foaming master batch proportioning：
According to above example, MODIFIED PP particle and foaming master batch are weighed, is well mixed, using injection machine injection moulding, Test performance such as table 2.
Table 2
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.

Claims (10)

  1. The reinforcing material 1. a kind of MODIFIED PP foams, it is characterised in that：Described MODIFIED PP foams reinforcing material by MODIFIED PP particle With foaming master batch composition, both mass ratioes are 100:（4~9）.
  2. 2. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 1, it is characterised in that：Described MODIFIED PP particle each group Divide and be according to the mass fraction：
    PP：50 ~ 60 parts
    Inorganic mineral extenders：30 parts
    Toughener：5 ~ 16 parts
    Short glass fiber：3 ~ 5 parts
    Antioxidant 1010：0.2 part
    Surfactant：0.2 part.
  3. 3. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 2, it is characterised in that：Described PP melt index 1 ~ 3g/10min。
  4. 4. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 2, it is characterised in that：Described inorganic mineral extenders It is 2 for talcum powder, montmorillonite and kaolin example in mass ratio:0.5:0.5 composition.
  5. 5. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 2, it is characterised in that：Described toughener be EVA and EPDM examples in mass ratio are 1:1 composition.
  6. 6. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 2, it is characterised in that：Described surfactant is hard Resin acid.
  7. 7. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 1, it is characterised in that：Described foaming master batch each component It is according to the mass fraction：
    EVA：45 ~ 60 parts
    Talcum powder：20 ~ 30 parts
    Foaming agent：10 ~ 20 parts
    Blowing promotor：2 ~ 5 parts
    Crosslinking agent：0.5 part
    Assistant crosslinking agent：0.2 part
    Antioxidant 1010；0.3 part.
  8. 8. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 7, it is characterised in that：Described EVA is VA contents 28%, MI are 40 E.
  9. 9. a kind of MODIFIED PP foaming reinforcing material as claimed in claim 7, it is characterised in that：Described foaming agent is azo two Formamide；The blowing promotor is zinc oxide；The crosslinking agent is benzoyl peroxide；The assistant crosslinking agent is divinyl Benzene.
  10. The preparation method of reinforcing material 10. a kind of MODIFIED PP as described in claim any one of 1-9 foams, it is characterised in that： Specifically include following steps：
    （1）MODIFIED PP particle is prepared, raw material is weighed according to proportioning, extruding pelletization is carried out using double screw extruder, extruder is each Area's temperature：One 150 DEG C of area, two 160 DEG C of areas, three 175 DEG C of areas, four 180 DEG C of areas, five 180 DEG C of areas, six 180 DEG C of areas, seven 180 DEG C of areas, Eight 180 DEG C of areas, nine 190 DEG C of areas, 180 DEG C of head；
    （2）Foaming master batch is prepared, raw material is weighed according to proportioning, extruding pelletization, each area of extruder are carried out using double screw extruder Temperature：One area is not heated, two 60 DEG C of areas, three 70 DEG C of areas, four 85 DEG C of areas, five 85 DEG C of areas, six 90 DEG C of areas, seven 85 DEG C of areas, eight areas 80 DEG C, nine 80 DEG C of areas, 80 DEG C of head；
    （3）Step is weighed in certain mass ratio（1）The MODIFIED PP particle and step of preparation（2）The foaming master batch of preparation, is utilized Injection machine carries out injection molding, and each section of temperature of injection machine is 175 DEG C ~ 190 DEG C.
CN201710474885.2A 2017-06-21 2017-06-21 A kind of MODIFIED PP foaming reinforcing material and preparation method thereof Pending CN107141599A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824975A (en) * 2019-01-04 2019-05-31 江苏理工学院 A kind of PP foamed material and preparation method thereof
CN110271165A (en) * 2019-08-01 2019-09-24 杭州高兴工程塑料有限公司 A kind of double screw extruder for MODIFIED PP

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106810766A (en) * 2017-01-16 2017-06-09 常州神鹰碳塑复合材料有限公司 A kind of PP modified foamings reinforcing material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106810766A (en) * 2017-01-16 2017-06-09 常州神鹰碳塑复合材料有限公司 A kind of PP modified foamings reinforcing material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109824975A (en) * 2019-01-04 2019-05-31 江苏理工学院 A kind of PP foamed material and preparation method thereof
CN110271165A (en) * 2019-08-01 2019-09-24 杭州高兴工程塑料有限公司 A kind of double screw extruder for MODIFIED PP

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