CN109929186A - A kind of low-shrinkage and high-strength degree high glaze engineering polypropylene material and preparation method thereof based on PC/ABS - Google Patents
A kind of low-shrinkage and high-strength degree high glaze engineering polypropylene material and preparation method thereof based on PC/ABS Download PDFInfo
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Abstract
The present invention is the low-shrinkage and high-strength degree high glaze engineering polypropylene material and preparation method thereof in relation to a kind of based on PC/ABS, the material include the high-flowability polypropylene of 65 parts by weight, the graft PP of 10 parts by weight, the POE of 5 parts by weight, the PA66 fiber of 5 parts by weight, 15 parts of 5um glass fibres, the anti-glass emergence on the surface agent of 1.0 parts by weight, 0.3 parts by weight antioxidant.The preparation method mainly includes that the manufacture of glass master batch, polypropylene and master batch are granulated, high-light no-trace is molded three processes, and mixer or vented twin screw extruder are used in glass master batch manufacturing process.Innovatively enhanced using ultra-fine fibre glass and flexible organic fiber, and use 5% or more high grafting rate polypropylene as efficient compatilizer, substantially increase fiber and polyacrylic compatibility, and the seamless Shooting Technique of bloom steam is utilized in Shooting Technique, the product glossiness of bloom reinforced polypropylene is set to be further enhanced, final comprehensive function makes product glossiness reach the requirement of bloom appearance part.The low-shrinkage and high-strength degree high glaze engineering polypropylene material of PC/ABS of the invention, cost with cheap versatile material PP, but glossiness, washing shrinkage, intensity etc. have reached the level of the engineering material such as engineering material PC/ABS alloy, ABS, PA, drop can be substituted originally, thus there is huge commercial value.
Description
Technical field
The present invention relates to modified plastic material production and its blend modification technology fields, particularly relate to one kind and are based on
Low-shrinkage and high-strength degree high glaze engineering polypropylene material of PC/ABS and preparation method thereof.
Background technique
With the gradually saturation of China's household electrical appliances market in recent years, the competition of field of household appliances, Costco Wholesale is fought repeatly
See not fresh, therefore, household appliances cost pressure is very big, often feeds through to each components supplying quotient, the appearance as household appliances
The plastic components of structural bearing cannot also escape by luck.ABS, PC/ABS are substituted usually using high-gloss polypropylene, fiberglass reinforced PP
Etc. appearances, structure member.Fiber reinforced polypropylene is a kind of composite material of maturation, especially glass fiber reinforcement PP and carbon fiber
Dimension enhancing PP successful commercialization, enhancing PP have many advantages, such as intensity height, dimensionally stable, cheap, become substitute ABS,
The only choosing of the engineering plastics such as PC, but due to also making using inorfil enhancing, which create some defects, such as surface matter
Measure very poor, substantially lackluster degree limits its use in appearance part significantly, becomes long-term indeterminable difficulty in industry
Topic.Currently, the scheme that polypropylene substitutes ABS in industry, which is generally barium sulfate filling high-gloss polypropylene, changes surname product and petrochemical industry tree
The high just polypropylene trade mark of the bloom of rouge plant produced, but that there is also washing shrinkages is big, and intensity is low, cannot directly substitute in practical application
The defect of ABS.Therefore, the enhancing PP modified material and its preparation side that a kind of intensity is high, surface quality is good, washing shrinkage is low are invented
Method has a very important significance.
Summary of the invention
The low-shrinkage and high-strength degree high glaze engineering based on PC/ABS that the technical problem to be solved in the present invention is to provide a kind of
Polypropylene material and preparation method thereof.Innovative point is first is that pass through unique compatibilization techniques and ultra-fine, flexible fiber complex technique
Improve mechanical strength, gloss and the dimensional stability of PP material.3-7um ultra-fine fibre glass and chopped PA66 flexibility is selected to have
Machine fiber composite, by be added maleic anhydride grafting ratio be 5% or more graft PP and various antioxidant, antistatic agent, pigment,
The auxiliary agents such as anti-glass emergence on the surface agent and the PP mixing such as homopolymerization, copolymerization, random, carry out special mixing in mixer or twin-screw
Compatibilized processing, produces the glass fibre master batch of different performance, substantially increases fiber and polyacrylic compatibility, reduce
The floating fibre of injecting products, is molded by using the glass master batch and polypropylene of different size, and bloom enhancing PP, bloom high-ductility can be made
Enhance the different purposes trades mark such as PP.Overcome big common barium sulfate filling high gloss PP shrink, poor dimensional stability and intensity not
High disadvantage.Meanwhile preferable glossiness is maintained, to engineering material can be replaced to be used for appearance part, eliminate general
Easily there are the open defects such as gas line, tarnish in logical glass fiber reinforcement PP glass emergence on the surface；Innovative point second is that, from technological angle come
It is innovated, by using the seamless bloom injection molding technology of steam, high glaze of the invention is further made to enhance PP glossiness substantially
Degree improves, and so that its glossiness is reached 80 or more, it is made to can be applied to PC/ABS bloom appearance product.
To solve the above problems, the present invention provides a kind of low-shrinkage and high-strength degree high glaze engineering poly- third based on PC/ABS
Alkene material, including following component:
High melting means polypropylene (MI > 30) 40-65 parts by weight
POE 0-15 parts by weight
Be chopped ultra-fine fibre glass 10-30 parts by weight
Organic short fiber 0-10 parts by weight
Maleic anhydride graft PP 5-15 parts by weight
Anti- glass emergence on the surface agent 1-2 parts by weight
Antioxidant 0.1-0.5 parts by weight
Light stabilizer 0.1-0.5 parts by weight
Pigment 0.1-0.5 parts by weight
Further, the graft PP is the high maleic anhydride grafting ratio polypropylene common different from market, preferably grafting rate
For 5% or more graft PP.The glass fibre is diameter 3-7um, the staple fiber of length 1-3mm, preferred length 1mm, diameter
The ultra-fine short glass fiber or glass powder of 5um.The POE is the pungent dilute copolymer of ethylene-, and the polypropylene is high flow model
Homopolymerization, block copolymerization or atactic copolymerized polypropene, it is necessary to its mobility >=30(230 DEG C of * 2.16KG), the organic short fiber
For the high-melting-points such as nylon 66 fiber, PET fiber, high-intensitive organic fiber.The light stabilizer be hindered amine 770,622,
944, one of the amines and ultraviolet absorbing agent such as UV531, UV328 or several, the antioxidant be 1010,168,
DLTP etc. is one of or several.The anti-glass emergence on the surface agent be modified polyethylene wax, modified siloxane, erucyl amide,
One of oleamide is several.
The present invention also provides a kind of above-mentioned low-shrinkage and high-strength degree high glaze engineering polypropylene materials based on PC/ABS
Preparation method, it is characterised in that the following steps are included:
A. high dispersive compatibility glass master batch make: by graft PP, organic fiber, polypropylene, ultra-fine fibre glass and other help
Agent is kneaded in mixer or twin-screw at temperature near 160 DEG C of PP fusing point, makes graft PP and glass, organic fiber
It is dispersed in polypropylene, and carries out extruding pelletization, it is spare；
B. glass master batch is squeezed out and is granulated with polypropylene: particle prepared by step A being mixed with high flow polypropylene, is passed through
Twin-screw, melting temperature are 180-210 DEG C, and engine speed is 250-450 revs/min, further glass dispersion are carried out, in A
Fiber obtains more fully dispersed with polypropylene, to can guarantee better presentation quality, A can also be blended directly in polypropylene
It is molded in injection molding machine, but dispersion effect is almost, appearance is slightly worse.
C. injection molding: the high glaze fiber glass reinforced polypropylene particle that B is produced using steam seamless bloom injection molding technology
It is molded.
By adopting such a design, the present invention has at least the following advantages:
1, the present invention produced using the scheme of glass fiber reinforcement enhance PP, can make polyacrylic washing shrinkage significantly under
Drop, reaches the washing shrinkage of the engineering plastics such as ABS, PC.
2, the present invention produces enhancing PP using the scheme of glass fiber reinforcement, and the dimensional stability of PP can be made to increase
Add, can be used as engineering material.
3, the present invention produces enhancing PP using the scheme of glass fiber reinforcement, greatly improves polypropylene modulus, remote super
Common barium sulfate fills high gloss PP
4, the present invention uses the ultra-fine fibre glass of 5um or so and flexibility PA66 fiber first to carry out compatibilized with high grafting rate PP and mixes
Refining processing, greatly improves fiber and the compatibility of PP, and fiber is exposed when reducing injection molding arrives epidermis, and superfine fibre intensity is much higher than general
Logical 13um glass, can reach same performance in less additive amount, while superfine fibre will form at injection surface exposed
More tiny micro- flaw can weaken the adverse effect to glossiness, and the coefficient of expansion of inorfil differs larger with PP, when cooling
Gap is formed between meeting and PP, show as product surface in appearance is permitted multi-phase separation gap, to make diffusing reflection, is dropped
Low mirror-reflection, causes glossiness to decline, and the present invention can play toughening reinforcing effect using PA66 fiber flexible, and have
Machine filament expansion coefficient and polypropylene are close, and cooling procedure can be consistent with PP and rest in PP, and appearance is broken in reduction
It is bad, to obtain high-gloss surface.
Low-shrinkage and high-strength degree high glaze engineering polypropylene material based on PC/ABS of the invention, low in cost, intensity
High, good stability of the dimension, glossiness is high, and good moldability, the engineering material such as alternative ABS, PC/ABS alloy, PA are conducive to visitor
Cost is greatly lowered in family, generates considerable economic benefit, suitable for products such as household electrical appliances, tools.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of low-shrinkage and high-strength degree high glaze engineering polypropylene material based on PC/ABS, including 65 weight
High-flowability polypropylene, the graft PP of 10 parts by weight, the POE of 5 parts by weight, the PA66 fiber of 5 parts by weight, 15 parts of 5um glass of part
Glass fiber, the anti-glass emergence on the surface agent TAF of 1.0 parts by weight, 0.3 parts by weight antioxidant.
Wherein, the graft PP is the graft PP that grafting rate is 8%.The glass fibre is length 1mm, diameter 5um
Ultra-fine short glass fiber.The organic short fiber is the enhanced industrial fiber of nylon66 fiber, the POE is high fluidity
The dilute elastomer of ethylene-fourth, 10(190 DEG C of * 2.16KG of mobility).The polypropylene is high flow model PP, mobility 45
(230 DEG C of * 2.16KG).
The present invention also provides a kind of above-mentioned low-shrinkage and high-strength degree high glaze engineering polypropylene materials based on PC/ABS
Preparation method, it is characterised in that the following steps are included:
A. high dispersive compatibility glass master batch make: by graft PP, organic fiber, polypropylene, ultra-fine fibre glass and other help
Agent is kneaded in mixer or twin-screw at temperature near 160 DEG C of PP fusing point, makes graft PP and glass, organic fiber
It is dispersed in polypropylene, and carries out extruding pelletization, it is spare；
B. glass master batch is squeezed out and is granulated with polypropylene: particle prepared by step A being mixed with high flow polypropylene, is passed through
Twin-screw, melting temperature are 180-210 DEG C, and engine speed is 250-450 revs/min, further glass dispersion are carried out, in A
Fiber obtains more fully dispersed with polypropylene, to can guarantee better presentation quality, A can also be blended directly in polypropylene
It is molded in injection molding machine, but dispersion effect is almost, appearance is slightly worse.
C. injection molding: the high glaze fiber glass reinforced polypropylene particle that B is produced using steam seamless bloom injection molding technology
It is molded.
1, enhancing PP is produced using the scheme of glass fiber reinforcement, can make polyacrylic washing shrinkage sharp fall,
Reach the washing shrinkage of the engineering plastics such as ABS, PC.
2, enhancing PP is produced using the scheme of glass fiber reinforcement, and the dimensional stability of PP can be made to greatly increase, it can
To be used as engineering material.
3, enhancing PP is produced using the scheme of glass fiber reinforcement, greatly improves polypropylene modulus, far super common sulphur
Sour barium fills high gloss PP
4, it is first carried out at compatibilized mixing using the ultra-fine fibre glass of 5um or so and flexibility PA66 fiber and high grafting rate PP
Reason greatly improves fiber and the compatibility of PP, and fiber is exposed when reducing injection molding arrives epidermis, and superfine fibre intensity is much higher than common
13um glass can reach same performance in less additive amount, while superfine fibre will form more at injection surface exposed
Tiny micro- flaw can weaken the adverse effect to glossiness, and the coefficient of expansion of inorfil differs larger with PP, meeting when cooling
Gap is formed between PP, show as product surface in appearance is permitted multi-phase separation gap, to make diffusing reflection, is reduced
Mirror-reflection, causes glossiness to decline, and the present invention can play toughening reinforcing effect using PA66 fiber flexible, and organic
Filament expansion coefficient and polypropylene are close, and cooling procedure can be consistent with PP and rest in PP, reduce the destruction to appearance,
To obtain high-gloss surface.
Embodiment 2
Be in place of the main distinction of the present embodiment and embodiment 1, choose high-flowability polypropylene that formula includes 50 parts by weight,
The graft PP of 10 parts by weight, the POE of 5 parts by weight, the PA66 fiber of 5 parts by weight, 30 parts of 5um glass fibres, 1.0 parts by weight it is anti-
The antioxidant of glass emergence on the surface agent TAF, 0.3 parts by weight.
Embodiment 3
Be in place of the main distinction of the present embodiment and embodiment 1, choose high-flowability polypropylene that formula includes 52 parts by weight,
The graft PP of 8 parts by weight, the POE of 10 parts by weight, the PA66 fiber of 10 parts by weight, 20 parts of 5um glass fibres, 1.0 parts by weight
The antioxidant of anti-glass emergence on the surface agent TAF, 0.3 parts by weight, the light stabilizer of 0.3 parts by weight, 0.2 part of phthalein mountain valley with clumps of trees and bamboo are red.
One group of comparative experimental example is set forth below to illustrate beneficial effects of the present invention.
Comparative example 1
Choose high-flowability polypropylene, the common graft PP (grafting rate 0.8%) of 10 parts by weight, 5 weight that formula is 65 parts by weight
Part POE, 5 parts by weight PA66 fiber, 15 parts of 5um glass fibres, the anti-glass emergence on the surface agent TAF of 1.0 parts by weight, 0.3 weight
The antioxidant of part.Processing technology is same as Example 1.
Comparative example 2
Choosing formula includes the high-flowability polypropylene of 50 parts by weight, the high grafting rate PP of 10 parts by weight, the POE of 5 parts by weight, 5
The PA66 fiber of parts by weight, 30 parts of 13um simple glass fibers, the anti-glass emergence on the surface agent TAF of 1.0 parts by weight, 0.3 parts by weight
Antioxidant.Processing technology is same as Example 2.
Comparative example 3
Choosing formula includes the high-flowability polypropylene of 52 parts by weight, the graft PP of 8 parts by weight, the POE of 10 parts by weight, 10 weight
Part PA66 fiber, 20 parts of 5um glass fibres, the anti-glass emergence on the surface agent TAF of 1.0 parts by weight, 0.3 parts by weight antioxidant, 0.3
The light stabilizer of parts by weight, 0.2 part of phthalein mountain valley with clumps of trees and bamboo are red.It is granulated and is squeezed out using one-step method, be molded template using common Shooting Technique.
The properties of product test that above-described embodiment 1-3 and comparative example 1-3 are produced, the result is as follows:
Table 1
Note: experimental method is all made of ISO experimental method.
As can be seen that the present invention is based on the low-shrinkage and high-strength degree high glaze works of PC/ABS from properties of product test result table
Journey polypropylene material, the strength of materials can reach PC/ABS level of alloy, and washing shrinkage reaches engineering compared with polypropylene sharp fall
The rank of grade thermoplastic plastics, while product, without glass emergence on the surface situation, glossiness greatly improves, and can be used for appearance product, thus
Reach the rank of engineering material in intensity, washing shrinkage, dimensional stability, glossiness various aspects, is a kind of very close engineering material
The cheap high-performance polypropylene modified product of material, product comprehensive performance are substantially better than traditional fiber glass reinforced polypropylene and filling and change
Property polypropylene, is worthy to be popularized.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technical staff makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this hair
In bright protection scope.
Claims (4)
1. a kind of low-shrinkage and high-strength degree high glaze engineering polypropylene material based on PC/ABS, which is characterized in that including 40-65
The maleic anhydride grafting of the high flow polypropylene of parts by weight, the chopped ultra-fine fibre glass of 10-30 parts by weight, 5-15 parts by weight
The pungent dilute copolymer of the ethylene-of PP, 0-15 parts by weight, the organic short fiber of 0-10 parts by weight, 1-2 parts by weight anti-glass emergence on the surface
Agent, the antioxidant of 0.1-0.5 parts by weight, the light stabilizer of 0.1-0.5 parts by weight, 0.1-0.5 parts by weight pigment.
2. the low-shrinkage and high-strength degree high glaze engineering polypropylene material according to claim 1 based on PC/ABS, special
Sign is, uses the technical fibers such as ultra-fine fibre glass and PA66, PET of 5-7um for polyacrylic reinforcing material, and use
Maleic anhydride grafting ratio higher than 5% high grafting rate graft PP as compatilizer, its main feature is that: substantially increase fiber and poly- third
It is exposed in resin surface to reduce glass using superfine fibre for the compatibility of alkene；High strength ultrafine fiber can be such that material reaches
Additional amount is less in the case of equality strength；The difference of linear expansion coefficient between fiber and resin can be reduced using organic fiber,
By above comprehensive means, the defect area for forming uncovered fibres in resin surface is seldom, therefore obtains high glaze
Glass fiber reinforcement PP；The formula innovative point of this patent first is that by unique compatibilization techniques and it is ultra-fine, flexible fiber is compound
Mechanical strength, gloss and the dimensional stability of technological improvement PP material；Select 3-7um ultra-fine fibre glass and chopped PA66 soft
Property organic fiber it is compound, by be added maleic anhydride grafting ratio be 5% or more graft PP and various antioxidant, antistatic agent, face
The auxiliary agents such as material, anti-glass emergence on the surface agent and the PP mixing such as homopolymerization, copolymerization, random, carry out special in mixer or twin-screw
The processing of mixing compatibilized, produces the glass fibre master batch of different performance, substantially increases fiber and polyacrylic compatibility, subtract
The floating fibre of injecting products is lacked, has been molded by using the glass master batch and polypropylene of different size, bloom enhancing PP, bloom can be made
High-ductility enhances the different purposes trades mark such as PP；Common barium sulfate filling high gloss PP is overcome to shrink big, poor dimensional stability and strong
Spend not high disadvantage；Meanwhile preferable glossiness is maintained, to engineering material can be replaced to be used for appearance part, eliminate
Easily there are the open defects such as gas line, tarnish in simple glass fiber reinforcement PP glass emergence on the surface；Innovative point second is that, from process corner
Degree, by using the seamless bloom injection molding technology of steam, further makes high glaze of the invention enhance PP glossiness to be innovated
It increases substantially, its glossiness is made to reach 80 or more, it is made to can be applied to PC/ABS bloom appearance product.
3. a kind of preparation of the low-shrinkage and high-strength degree high glaze engineering polypropylene material described in claim 1 based on PC/ABS
Method, it is characterised in that the following steps are included: A. high dispersive compatibility glass master batch makes: by graft PP, organic fiber, poly- third
Alkene, ultra-fine fibre glass and other auxiliary agents are kneaded in mixer or twin-screw at temperature near 160 DEG C of PP fusing point,
It is dispersed in graft PP and glass, organic fiber in polypropylene, and carries out extruding pelletization, it is spare；B. glass master batch and poly-
Propylene is squeezed out and is granulated: particle prepared by step A being mixed with high flow polypropylene, by twin-screw, melting temperature is
180-210 DEG C, engine speed is 250-450 revs/min, carries out further glass dispersion, and the fiber in A and polypropylene obtain more
Fully dispersed, to can guarantee better presentation quality, A can also be blended directly in injection molding machine with polypropylene and be molded, but point
Almost, appearance is slightly worse for scattered effect；C. injection molding: the high glaze glass that B is produced using steam seamless bloom injection molding technology
Reinforced polypropylene particle is molded.
4. the preparation of the low-shrinkage and high-strength degree high glaze engineering polypropylene material according to claim 1 based on PC/ABS
Method, process innovation point are, by using the seamless bloom injection molding technology of steam, high glaze of the invention are further made to enhance PP
Glossiness increases substantially, its glossiness is made to reach 80 or more, it is made to can be applied to PC/ABS bloom appearance product.
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| CN201910210313.2A CN109929186A (en) | 2019-03-20 | 2019-03-20 | A kind of low-shrinkage and high-strength degree high glaze engineering polypropylene material and preparation method thereof based on PC/ABS |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116003912A (en) * | 2023-02-10 | 2023-04-25 | 创合新材料科技江苏有限公司 | Special polypropylene reinforcing material for micro-crosslinked high-pressure-resistant water pump and preparation method and application thereof |
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| CN116003912A (en) * | 2023-02-10 | 2023-04-25 | 创合新材料科技江苏有限公司 | Special polypropylene reinforcing material for micro-crosslinked high-pressure-resistant water pump and preparation method and application thereof |
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