CN108641194A - A kind of hollow blow molding fretting map tool box material and preparation method thereof - Google Patents
A kind of hollow blow molding fretting map tool box material and preparation method thereof Download PDFInfo
- Publication number
- CN108641194A CN108641194A CN201810251897.3A CN201810251897A CN108641194A CN 108641194 A CN108641194 A CN 108641194A CN 201810251897 A CN201810251897 A CN 201810251897A CN 108641194 A CN108641194 A CN 108641194A
- Authority
- CN
- China
- Prior art keywords
- parts
- tool box
- polypropylene
- fretting map
- blow molding
- 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
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims abstract description 58
- -1 polypropylene Polymers 0.000 claims abstract description 57
- 229920001155 polypropylene Polymers 0.000 claims abstract description 47
- 239000004088 foaming agent Substances 0.000 claims abstract description 23
- 229920001577 copolymer Polymers 0.000 claims abstract description 17
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000004611 light stabiliser Substances 0.000 claims abstract description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 230000003750 conditioning effect Effects 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 229920001971 elastomer Polymers 0.000 claims description 18
- 239000000806 elastomer Substances 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 8
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000003607 modifier Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical group CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
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- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 4
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- 239000003365 glass fiber Substances 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
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- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 150000001993 dienes Chemical class 0.000 claims description 2
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
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- 239000008117 stearic acid Substances 0.000 claims description 2
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- 238000004519 manufacturing process Methods 0.000 abstract description 7
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- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 3
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- 244000043261 Hevea brasiliensis Species 0.000 description 2
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- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
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- 239000004793 Polystyrene Substances 0.000 description 1
- WJEIYVAPNMUNIU-UHFFFAOYSA-N [Na].OC(O)=O Chemical compound [Na].OC(O)=O WJEIYVAPNMUNIU-UHFFFAOYSA-N 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- 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
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/0031—Making articles having hollow walls
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- C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The present invention relates to a kind of tool boxes and preparation method thereof, especially a kind of hollow blow molding fretting map tool box and preparation method thereof.The present invention relates to material include following parts by weight component：60 90 parts of copolymer polypropylene, 5 30 parts of melt-blown polypropylene, 0 20 parts of filler, 1 20 parts of conditioning agent, 0.5 12 parts of foaming agent, 1 10 parts of blowing promotor, 0.5 2 parts of lubricant, 0.2 1 parts of antioxidant, 0.2 1 parts of light stabilizer, and disclose preparation method.The present invention is logical to obtain the tool box with fine and smooth microcellular structure.It effectively improves melt polypropylene and is blow molded sag resistant performance and transverse tensile property during fretting map, meet the requirement freely regulated and controled to product Thickness Distribution, ensure that being smoothed out for hollow polypropylene blowing fretting map process, product have notable lightweight feature；The present invention also has excellent dimensional stability, anti-dropping capability and anti-seismic performance.Preparation method provided by the invention, molding cycle is shorter, and manufacturing cost is low, and product qualification rate is high, it is easy to accomplish industrialization.
Description
Technical field
The present invention relates to a kind of tool box material and preparation method thereof, especially a kind of hollow blow molding fretting map tool box lumber
Material and preparation method thereof.
Background technology
Currently, tool box in the market is mainly based on blow molded high density polyethylene tool box, however, it is using process
Middle discovery has problems with, such as：1, current tool box wall thickness is too thick, and preponderance is inconvenient to carry, but adjusts product wall thickness
When, blow molding finished tool case qualification rate is too low；2, certain tool boxes, especially high-end tool box require more product strength
Height, heat resistance is more preferable (even more than 80 DEG C), and high density polyethylene (HDPE) tool box can not reach requirement at present；3, high density polyethylene (HDPE)
Tool box, which exists, falls perishable phenomenon, it is difficult to by 1.6m height, therefore 10kg weight drop tests are deposited during use
In certain security risk.
Polypropylene micro-foaming material has many advantages compared to high density polyethylene (HDPE), for example, lower density, higher intensity and
Rigidity, better heat resisting temperature (even as high as 100 DEG C or more can normal use), it is superior fall cushion performance, it is more excellent
Different Environmental Stress Cracking etc. can meet tool box requirement.However, because blow moulding tool case to place various different shapes,
Therefore the tool of different function has extremely complex inner liner structure, entirely different with its outer surface level structure, for
Such dissymmetrical structure product blow molding, polypropylene micro-foaming material face following challenge：1, because of polypropylene linear molecule knot
Structure, the sag resistant poor performance in blow-molding process, the in addition presence of abscess are very easy in blowing process to generate idiosome broken
It splits；2, because micro-foaming polypropylene melt transverse tensile property is poor, the regulation and control to blow moulding tool tank wall thickness are difficult to realize；3, because of poly- third
Alkene is easy crystallization and shrinks, and tool box after molding is very easy to deform, poor dimensional stability.
Invention content
In order to solve the above problem, a kind of hollow blow molding fretting map tool box material of present invention offer and preparation method thereof, production
Product are blow molded that sag resistant performance in foamed forming process is good, and melt is not broken when wall thickness Optimum Regulation, and finished product has completely enclosed formula
Foam structure and cell density height, light-weight, mechanical property is good, and low temperature and room temperature anti-dropping capability are good, product size stability
Height, it is heat-resist, high-end tool box requirement is fully met, in addition, the present invention also has many advantages, such as good apparent mass.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of hollow blow molding fretting map tool box material, includes the component of following parts by weight：
60-90 parts of copolymer polypropylene
5-30 parts of melt-blown polypropylene
0-20 parts of filler
1-20 parts of conditioning agent
0.5-12 parts of foaming agent
1-10 parts of blowing promotor
0.5-2 parts of lubricant
0.2-1 parts of antioxidant
0.2-1 parts of light stabilizer
Further technical solution, the copolymer polypropylene melt index are 0.1-5g/10min, and preferred molten index is
0.5g/10min；The melt-blown polypropylene melt index is more than or equal to 500g/10min, and preferred molten index is 1500g/
10min。
Further technical solution, the filler are one in glass fibre, talcum powder, calcium carbonate, mica, barium sulfate
Kind, preferably talc powder；
Further technical solution, the conditioning agent are high fusion index and low melt index hydridization Compositional type elastomer, bullet
Property body be propylene-based elastomeric (such as propylene-ethylene elastomers, propene-1-butene copolymer etc.), based elastomers (ethylene-
Butylene copolymer, ethylene-octene copolymer, ethylene-ethyl acrylate copolymer etc.), ethylene octane copolymer (such as TPV,
TPE etc.), styrenic elastomer (such as SBS, SEBS etc.), diene class elastomer (such as trans- natural rubber of thermoplasticity etc.),
Organic silicon elastomer (such as the block copolymer of polystyrene and dimethyl silicone polymer, poly bisphenol carbonic ester and poly- diformazan
The block copolymer of radical siloxane, the block copolymer of polyarylate and dimethyl silicone polymer) in one kind, preferred acrylic bullet
Property body；High fusion index is ranging from more than or equal to 100g/10min, and preferred molten index is 150g/10min, low melt index model
It encloses to be less than or equal to 5g/10min, preferred molten index is 0.5g/10min；
Further technical solution, the foaming agent are hydrazides foaming agent (such as foaming agent OBSH etc.), dinitroso class
Foaming agent (for example, H foaming agents etc.), azo foaming agent (such as azodiisobutyronitrile), carbonate foaming agent (such as carbonic acid
Sodium etc.), a kind of in bicarbonate salts foaming agent (such as sodium bicarbonate etc.), preferred sodium bicarbonate.
Further technical solution, the blowing promotor include nucleating agent, dispersant and interface modifier, three's weight ratio
Example is 1：4：5；Wherein, the nucleating agent be organic modification montmonrillonite, surface treating nano calcium carbonate, organically-modified concave convex rod,
One kind in phosphoric acid salt, preferably organically-modified concave convex rod；Dispersant is polyethylene wax, oxidized polyethylene wax, the double tristearin of ethylene
One kind in amide, stearic acid, tristerin, preferably tristerin；Interface modifier is that maleic anhydride grafting changes
Property polyolefin, methacrylic dehydrated glyceride graft polyolefin, modified by maleic acid anhydride graft styrenic elastomer, poly- diformazan
One kind in radical siloxane, preferably methacrylic dehydrated glyceride grafted polyethylene.
Further technical solution, the lubricant are one in silicone, erucyl amide, polypropylene wax, unsaturated fatty acid
Kind, preferably polypropylene wax；The antioxidant is antioxidant 1010, irgasfos 168；The light stabilizer be cyanogen spy 3808,944,
One kind in 770；
Further technical solution, the preparation method in the hollow blow molding fretting map tool box, it is characterised in that：Including with
Lower step：
Step 1：By 60-90 parts of copolymer polypropylene, 5-30 parts of melt-blown polypropylene, 0-20 parts of filler, conditioning agent 1-20
Part, 1-10 parts of blowing promotor, 0.5-2 parts of lubricant, 0.2-1 parts of antioxidant, 0.2-1 parts of light stabilizer is according to certain part by weight
Number mixes 2-10min in mixing machine, is added in double screw extruder, is granulated at a temperature of 200-250 DEG C, spiral shell by hopper
Bar rotating speed 400-700r/min, obtaining can blow moulding tool case PP composite material；
Step 2：Foaming agent is added by side spout in single screw rod blow moulding machine for 0.5-12 parts according to parts by weight；Meanwhile
The tool box PP composite material that step 1 obtains is added to single screw rod blow moulding machine barrel；At a temperature of 150-230 DEG C,
It is blow molded, obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
Further technical solution, single screw rod blow moulding machine screw slenderness ratio are 20：1-50:1, preferably 25：1, compression ratio is
2.5:1-6:1, preferably 3.5：1.
Advantageous effect
Compared with existing product, the present invention has following remarkable advantage：
1, the present invention obtains the tool box material with fine and smooth microcellular structure by hollow fretting map blow molding technology.This hair
Bright use Ultra-low molecular weight melt-blown polypropylene refers to copolymer polypropylene melt rheological behaviour to high molecular weight eutectic and regulates and controls, with
And high and low mobility elastomer synergistic effect, effectively improve during melt polypropylene blowing fretting map sag resistant performance and
Transverse tensile property, realization product Thickness Distribution freely regulate and control, guarantee hollow polypropylene be blow molded fretting map process it is smooth into
The labyrinth of capable and high-end tool box product is effectively replicated, meanwhile, cell growth is also improved to a certain extent
Stability and uniformity ensure product lightweight feature, improve product apparent mass and carry portability；The present invention provides material
Its heat resistance of tool box made of material is more preferable (range can reach 80 DEG C -110 DEG C or more), and it is poly- to make up prior art middle-high density
The disadvantage of ethylene tool box heat resistance deficiency.It is not only able to solve parts lightweight problem, the size for also solving product is steady
Qualitative, anti-dropping capability is in addition, the present invention also has excellent mechanical strength, good ductility, lower temperature resistance, excellent
The performances such as resiliency, heat-insulated and anti-seismic performance.
2, the use of nucleating agent, dispersant and interface modifier has miniaturization and stabilization in blowing promotor in the present invention
Foam structure acts on, and cell nucleation and growth course can be regulated and controled in foaming process, increases cell density, and it is apparent to eliminate product
The defects of gas trace, is conducive to improve tool box products appearance quality.
3, in the preparation method of material of the present invention, foaming agent is introduced by side feeding, this is conducive to that foaming agent is avoided to exist
Decomposition in advance in screw rod, the escape loss of gas, improves foaming agent efficiency.
4, the present invention provides the preparation method of the material, and technique is controllable, and molding cycle is shorter, and manufacturing cost is low, efficient,
It is easily industrialized.
Description of the drawings
Fig. 1 is the internal microcellular structure schematic diagram of the hollow blow molding fretting map tool box material of the present invention.
Specific implementation mode
The present invention is described in further detail for embodiment below in conjunction with the accompanying drawings.
A kind of preparation method of hollow blow molding fretting map tool box material, includes the following steps：
Embodiment 1
The material component is shown in Table 1；
Production method is step 1：By 60 parts of copolymer polypropylene, 5 parts of melt-blown polypropylene, 20 parts of talcum powder, propylene-second
20 parts of alkene elastomer, 1 part of organic modification montmonrillonite, 4 parts of tristerin, methacrylic dehydrated glyceride grafted polyethylene
5 parts, polypropylene wax 2, antioxidant 1010 is 1 part, and cyanogen spy 3808 mixes according to constant weight number in mixing machine for 0.2 part
2min is added to by hopper in double screw extruder, is granulated at a temperature of 200-250 DEG C, and screw speed 400r/min is obtained
It can blow moulding tool case PP composite material；
Step 2：Sodium bicarbonate is added by side spout in single screw rod blow moulding machine for 12 parts according to parts by weight；Meanwhile it will
The tool box PP composite material that step 1 obtains is added to single screw rod blow moulding machine barrel；At a temperature of 150-230 DEG C, into
Row blowing obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
The single screw rod blow moulding machine screw slenderness ratio is 20：1, compression ratio 2.5:1.
Embodiment 2
The material component is shown in Table 1；
Production method is step 1：By 70 parts of copolymer polypropylene, 30 parts of melt-blown polypropylene, the trans- natural rubber of thermoplasticity
1 part, 0.1 part of organic modification montmonrillonite, 0.4 part of polyethylene wax, 0.4 part of dimethyl silicone polymer, 0.4 part of polypropylene wax, antioxygen
Agent 1010 is 0.2 part；Light stabilizer 944 is 1 part and mixes 10min in mixing machine according to constant weight number, by hopper plus
Enter into double screw extruder, be granulated at a temperature of 200-250 DEG C, screw speed 700r/min, obtain can blow moulding tool case it is poly-
Acrylic composite；
Step 2：Azodiisobutyronitrile is added by side spout in single screw rod blow moulding machine for 0.5 part according to parts by weight；Together
When, the tool box PP composite material that step 1 obtains is added to single screw rod blow moulding machine barrel；In 150-230 DEG C of temperature
Under, it is blow molded, obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
The single screw rod blow moulding machine screw slenderness ratio is 50:1, compression ratio 6:1.
Embodiment 3
The material component is shown in Table 1；
Production method is step 1：By 80 parts of copolymer polypropylene, 20 parts of melt-blown polypropylene, 10 parts of talcum powder, ethylene-
15 parts of octene elastomer, 0.5 part of organically-modified concave convex rod, 2 parts of tristerin, 2.5 parts of dimethyl silicone polymer, erucic acid acyl
1 part of amine, antioxidant 1010 are 0.5 part, and cyanogen spy 3808 mixes 6min according to constant weight number for 0.5 part in mixing machine, leads to
It crosses hopper to be added in double screw extruder, be granulated at a temperature of 200-250 DEG C, screw speed 500r/min obtains to be blow molded
Tool box PP composite material；
Step 2：Foaming agent is added by side spout in single screw rod blow moulding machine for OBSH6 parts according to parts by weight；Meanwhile
The tool box PP composite material that step 1 obtains is added to single screw rod blow moulding machine barrel；At a temperature of 150-230 DEG C,
It is blow molded, obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
The single screw rod blow moulding machine screw slenderness ratio is 30：1, compression ratio 5:1.
Embodiment 4
The material component is shown in Table 1；
Production method is step 1：By 90 parts of copolymer polypropylene, 10 parts of melt-blown polypropylene, 5 parts of glass fibre,
SEBS10 parts, 0.8 part of surface treating nano calcium carbonate, 3.2 parts of polyethylene wax, methacrylic dehydrated glyceride grafted polyethylene
4 parts, 0.8 part of erucyl amide, antioxidant 1010 is 0.6 part, and light stabilizer 944 is 0.4 part and is being mixed according to constant weight number
3min is mixed in machine, is added in double screw extruder by hopper, is granulated at a temperature of 200-250 DEG C, screw speed 500r/
Min, obtaining can blow moulding tool case PP composite material；
Step 2：Azodiisobutyronitrile is added by side spout in single screw rod blow moulding machine for 3 parts according to parts by weight；Together
When, the tool box PP composite material that step 1 obtains is added to single screw rod blow moulding machine barrel；In 150-230 DEG C of temperature
Under, it is blow molded, obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
The single screw rod blow moulding machine screw slenderness ratio is 25:1, compression ratio 5:1.
According to above-mentioned preparation method, comparative example 1, embodiment 1, embodiment 2, embodiment 3, embodiment 4, specific formula is as follows
Shown in table：
To in upper table comparative example and embodiment be detected, results of property is as shown in the table：
Product comparative example and embodiment performance table of the present invention
Note：Sag performance test conditions are 190 DEG C, testing time 20min, test bars sagging length, shorter proof
Material sag resistant is better.1.6m height, 10kg weight drop tests tool box do not deform.
As can be seen from the above results, compared with comparative example 1, the embodiment of the present invention 1, embodiment 2, embodiment 3, embodiment
4, the present invention has good sag resistant performance, is significantly improved compared with the performance for the prior art, and elongation at break significantly improves,
And softening temperature is higher, it is heat-resist.Well inflation has been effectively ensured during melt polypropylene blowing fretting map and has laterally drawn
It stretches, realizes and product Thickness Distribution is freely regulated and controled, meet that high-end tool box product labyrinth effectively replicated wants
It asks, meanwhile, it can also improve cell growth stability and uniformity to a certain extent, obtain and completely enclose foam structure (Fig. 1),
Product light weight effect is apparent.Meanwhile good foam structure of the invention and high cell density so that product has excellent
Resiliency also solves the anti-drop problem of existing product while solving tool box lightweight problem.
The foregoing is merely the specific implementation modes of the present invention, but scope of protection of the present invention is not limited thereto, any
Those skilled in the art should be covered according to equivalent change or modification made by spirit of the invention the present invention's
Within protection domain.
Claims (11)
1. a kind of hollow blow molding fretting map tool box material, which is characterized in that include the component of following parts by weight：
60-90 parts of copolymer polypropylene
5-30 parts of melt-blown polypropylene
0-20 parts of filler
1-20 parts of conditioning agent
0.5-12 parts of foaming agent
1-10 parts of blowing promotor
0.5-2 parts of lubricant
0.2-1 parts of antioxidant
0.2-1 parts of light stabilizer.
2. hollow blow molding fretting map tool box material according to claim 1, it is characterised in that：The copolymer polypropylene melting
Index is 0.1-5g/10min；The melt-blown polypropylene melt index is more than or equal to 500g/10min.
3. hollow blow molding fretting map tool box material according to claim 2, it is characterised in that：The copolymer polypropylene is molten
It is 0.5g/10min to melt index；The melt-blown polypropylene melt index is 1500g/10min.
4. hollow blow molding fretting map tool box material according to claim 1, it is characterised in that：The conditioning agent is Gao Rong
Melt index and low melt index hydridization Compositional type elastomer, the elastomer is propylene-based elastomeric, based elastomers, gathers
One kind in olefin type elastomer, styrenic elastomer, diene class elastomer, organic silicon elastomer, the high melting
Index elastomer melt index is ranging from more than or equal to 100g/10min, and the low melt index is ranging from less than or equal to 5g/
10min。
5. hollow blow molding fretting map tool box material according to claim 4, it is characterised in that：The elastomer is propylene
Based elastomeric；Elastomer high fusion index is 150g/10min, and low melt index is ranging from 0.5g/10min.
6. hollow blow molding fretting map tool box material according to claim 1, it is characterised in that：The filler is glass fibers
One kind in dimension, talcum powder, calcium carbonate, mica, barium sulfate；The foaming agent is hydrazides foaming agent, the foaming of dinitroso class
It is a kind of in agent, azo foaming agent, carbonate foaming agent, bicarbonate salts foaming agent；The lubricant is silicone, erucic acid acyl
One kind in amine, polypropylene wax, unsaturated fatty acid；The antioxidant is antioxidant 1010, irgasfos 168；The light is stablized
Agent is one kind in cyanogen spy 3808,944,770.
7. hollow blow molding fretting map tool box material according to claim 6, it is characterised in that：It is described that filler is talcum
Powder；The lubricant is polypropylene wax；The foaming agent is sodium bicarbonate.
8. hollow blow molding fretting map tool box material according to claim 1, it is characterised in that：The blowing promotor includes into
Core agent, dispersant and interface modifier；Forming weight is：1:4:5；The nucleating agent is organic modification montmonrillonite, at surface
Manage one kind in nano-calcium carbonate, organically-modified concave convex rod, phosphoric acid salt；Dispersant is polyethylene wax, oxidized polyethylene wax, second
Support one kind in bis-stearamides, stearic acid, tristerin；Interface modifier be modified by maleic acid anhydride graft polyolefin,
Methacrylic dehydrated glyceride graft polyolefin, modified by maleic acid anhydride graft styrenic elastomer, dimethyl silicone polymer
In one kind.
9. hollow blow molding fretting map tool box material according to claim 8, it is characterised in that：The nucleating agent is organic
Modified attapulgite；The dispersant tristerin；Interface modifier is methacrylic dehydrated glyceride grafted polyolefin
Hydrocarbon.
10. according to the preparation method in claim 1-9 any one of them hollow blow molding fretting maps tool box, it is characterised in that：
Include the following steps：
Step 1：By 60-90 parts of copolymer polypropylene, 5-30 parts of melt-blown polypropylene, 0-20 parts of filler, 1-20 parts of conditioning agent,
1-10 parts of blowing promotor, 0.5-2 parts of lubricant, 0.2-1 parts of antioxidant, 0.2-1 parts of light stabilizer exist according to constant weight number
2-10min is mixed in mixing machine, is added in double screw extruder by hopper, is granulated at a temperature of 200-250 DEG C, and screw rod turns
Fast 400-700r/min, obtaining can blow moulding tool case PP composite material；
Step 2：Foaming agent is added by side spout in single screw rod blow moulding machine for 0.5-12 parts according to parts by weight；Meanwhile it will walk
The rapid one tool box PP composite material obtained is added to single screw rod blow moulding machine barrel；At a temperature of 150-230 DEG C, blown
Modeling obtains the polypropylene fretting map tool box with oval or oblate micro pore shape.
11. the preparation method in hollow blow molding fretting map according to claim 10 tool box, it is characterised in that：Single screw rod is blown
Molding machine screw slenderness ratio is 20：1-50:1, compression ratio 2.5:1-6:1.
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| CN115124787A (en) * | 2022-08-30 | 2022-09-30 | 江苏中科聚合新材料产业技术研究院有限公司 | Modified polypropylene foam material and preparation method and application thereof |
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