CN110343342A - Expandable polystyrene composition and preparation method thereof - Google Patents
Expandable polystyrene composition and preparation method thereof Download PDFInfo
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- CN110343342A CN110343342A CN201910644204.1A CN201910644204A CN110343342A CN 110343342 A CN110343342 A CN 110343342A CN 201910644204 A CN201910644204 A CN 201910644204A CN 110343342 A CN110343342 A CN 110343342A
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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
- 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
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- 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
- C08J9/0014—Use of organic additives
- C08J9/0028—Use of organic additives containing nitrogen
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- 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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- 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
- B29C2948/92542—Energy, power, electric current or voltage
-
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/03—Extrusion of the foamable blend
-
- 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
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present invention discloses a kind of expandable polystyrene composition and preparation method thereof, according to parts by weight, comprising: polystyrene: 100 parts；Polynitrogen heterocycle class compound: 0.5-2 parts；Foaming agent: 3-6 parts.Wherein, the heterocycle of polynitrogen heterocycle class compound or miscellaneous condensed ring substance improve or help polystyrene to improve the stability of pentane in the substrate, and reducing escape velocity makes constant-pressure and high-temperature extrusion become possible.Meanwhile these polynitrogen heterocycle class compounds are pigment, can produce various colored expandable polystyrene material and black expandable polystyrene material easily.And this method can be squeezed out directly by extruder, directly pelletizing and the cooling in the case where atmospheric pressure environment is greater than 100 DEG C, to obtain the particle containing foaming agent.
Description
Technical field
The present invention relates to the technical fields of modified styrene polymer, in particular to expandable polystyrene composition and its preparation
Method.
Background technique
Expandable polystyrene (expandable polystyrene, EPS) is a kind of polyphenyl second that joined foaming agent
Alkene product.Common foaming is low boiling hydrocarbon (such as petroleum ether, butane, pentane), disperses to suspend with styrene monomer when preparation
In aqueous solution, therefore the suspension method EPS that gains the name, foaming agent penetrate into polystyrene in autoclave, referred to as one-step method, such as
It is sweet that CN1200016C discloses 90~110 parts of styrene, 1.2~4.0 parts of calcium phosphate, 0.08~0.20 part of buffer, monostearate
0.04~0.10 part of grease, 0.10~0.30 part of sodium pyrophosphate, 0.30~0.50 part of the benzoyl peroxide fire-retardant EPS of synthesis.Such as
Polystyrene little particle is dispersed in water by fruit, and foaming agent, which is added, is known as the method penetrated into its particle in hyperbaric environment
Two step method.In the market based on one-step method, two step method is as supplement.Suspension method EPS under certain condition initiate to steep in advance by steam, so
Molding obtains EPS product of various shapes afterwards, is widely used in packaging and field of thermal insulation.Suspension method will be used a large amount of when producing
Water cannot be without limitation using sewage discharge problem is related to although waste water can reuse, and now, environmental protection pressure is high
Enterprise brings very big predicament for enterprise, and small-sized suspension method factory is suspended operations for consolidation, and is gone into operation not within the foreseeable future.In addition it suspends
The maximum disadvantage of method EPS is that can not arbitrarily add pigment in polystyrene, therefore cannot be made into various colored and black productions
Product.
A kind of method of novel low heat conductive graphite EPS bead material of developed recently, as disclosed in CN104592662A,
The additives such as graphite powder, fire retardant are uniformly blended into polystyrene first, melt blending is carried out and is modified, squeezed out by extruder
The pelletizing in high pressure water, a step obtain EPS particle.This method can arbitrarily add various pigment and auxiliary agent into EPS, therefore
Producing high thermal resistance and colored material advantage clearly.But this method will use high pressure water, and production is not convenient, if pressure control
The case where sending out in advance after incessantly appearing in material outlet mold is made, and this method production equipment is sufficiently expensive, to large-scale promotion
Related product is unfavorable.
Summary of the invention
It is direct by extruder the object of the present invention is to provide a kind of expandable polystyrene composition and preparation method thereof
It squeezes out tie rod and then one step of pelletizing obtains the method and extruding composition of EPS.This method is not needed as suspension method EPS
Using a large amount of sewage, high pressure underwater cutpellet is not needed yet.But this method can produce various colored material and black easily again
Colorant.
Expandable polystyrene composition, according to parts by weight, comprising:
Polystyrene: 100 parts；
Polynitrogen heterocycle class compound: 0.5-2 parts；
Foaming agent: 3-6 parts.
Preferably, expandable polystyrene composition, according to parts by weight, comprising:
Polystyrene: 100 parts；
Polynitrogen heterocycle class compound: 1 part；
Foaming agent: 4 parts.
In some embodiments, polynitrogen heterocycle class compound is pigment yellow 93, pigment yellow 191, lemon yellow, permanent yellow
83, pigment red 38, paratonere 269, paratonere 63:1, pigment Blue-61, pigment violet 32, pigment Violet 23, paratonere 178 or pigment black
At least one of 31.
Wherein, pigment yellow 93, molecular formula C43H35C15N8O6；Pigment yellow 191, molecular formula C17H13ClN4O7S2Ca；Lemon
Huang, molecular formula C16H9N4O9S2Na3；Permanent yellow 83, molecular formula C36H32C14N6O8；Pigment red 38, molecular formula C36H28N8O6C12；Face
Expect red 269, molecular formula C32H25N4O5Cl；Paratonere 63:1, molecular formula C21H12CaN2O6S；Pigment Blue-61, molecular formula
C37H29N3O3S；Pigment violet 32, molecular formula C27H24N6O7S；Pigment Violet 23, molecular formula C34H22Cl2N4O2；Paratonere 178,
Molecular formula is C48H26N6O4；Pigment black 31, molecular formula C40H26N2O4.The heterocycle of these polynitrogen heterocycle class compounds is miscellaneous thick
Ring substance improves or helps polystyrene to improve the stability of pentane in the substrate, and reducing escape velocity makes normal pressure height
Warm extrusion goes out to become possible.These polynitrogen heterocycle class compounds are pigment simultaneously, can produce various colored expandability polyphenyl easily
Feed ethylene and black expandable polystyrene material.
In some embodiments, foaming agent is at least one of pentane, isopentane or neopentane.
The preparation method of expandable polystyrene composition, comprising the following steps:
Nitrogen catenation is uniformly mixed with polystyrene, the feeding inlet of extruder is added；
Foaming agent is squeezed into using metering pump by extruder at the middle part of extruder；
Batten is drawn and attenuated after the discharge port of extruder extrusion by dragger, enters in cold water after drawing-down and cools, finally
Pelletizing.It is cut into the particle containing foaming agent for needing size.
It is well known why traditional EPS can apply on a large scale, have benefited from foaming agent pentane in polystyrene
Can be steady, it is unlikely to too fast escape.When EPS is heated (between 80-110 DEG C, normal pressure), polystyrene is softened, and penta
Alkane expansion struts polystyrene molecule, forms countless small closed pores, this is referred to as pre- hair.In suspension method EPS, pentane is being greater than
100 DEG C -130 DEG C enter granules of polystyrene, and the pressure that at this moment must apply to reaction kettle not less than 3 atmospheric pressure just can guarantee
It does not send out in advance, safety in production.Similarly, when high pressure water incision produces, the material of melting comes out from mold, high-speed rotating
Cutter cuts into dices son and to be taken away by recirculated water, and at this moment the temperature of small particles is still higher than 80 DEG C, so must apply to recirculated water
Add at least three atmospheric pressure just and can guarantee that progress is stablized in production.
And the technical program can be squeezed out directly by extruder, the directly pelletizing and cold in the case where atmospheric pressure environment is greater than 100 DEG C
But, to obtain the particle containing foaming agent.
In some embodiments, extruder is equipped with 8 heating zones, and the temperature range of each heating zone is 100-200 DEG C,
And the temperature range of the last one heating zone is 100-150 DEG C.
Temperature combination can be 200-200-200-160-125-125-125-140 DEG C, can be 200-180-180-
160-160-160-130-130 DEG C etc. temperature combination, the temperature in the last one area is not more than 150 DEG C, if it is greater than 150 DEG C,
Pentane escape is difficult to very much steady production fastly, but can not be lower than 100 DEG C, if being lower than 100 DEG C, the too cold easy broken strip of mold,
It can not normally produce.
In some embodiments, the hauling speed of dragger is 200-800rpm.
In some embodiments, the die hole of extruder is 1-2mm.
In some embodiments, polynitrogen heterocycle class compound is pigment yellow 93, pigment yellow 191, lemon yellow, permanent yellow
83, pigment red 38, paratonere 269, paratonere 63:1, pigment Blue-61, pigment violet 32, pigment Violet 23, paratonere 178 or pigment black
At least one of 31.
In some embodiments, foaming agent is at least one of pentane, isopentane or neopentane.
The utility model has the advantages that
The phenyl ring of polynitrogen heterocycle class compound or miscellaneous condensed ring substance improve or polystyrene are helped to improve pentane
Stability in the substrate, reducing escape velocity makes constant-pressure and high-temperature extrusion become possible.These polynitrogen heterocycle class chemical combination simultaneously
Object is pigment, can produce various colored expandable polystyrene material and black expandable polystyrene material easily.
And this method can be squeezed out directly by extruder, directly pelletizing and the cooling in the case where atmospheric pressure environment is greater than 100 DEG C, from
And obtain the particle containing foaming agent.
Specific embodiment
Following case study on implementation, is described in more detail the present invention.
Case study on implementation 1:
The pigment yellow 93 of 100kg polystyrene, 1kg is uniformly mixed with batch mixer, by extruder blanking, meanwhile,
4kg pentane is squeezed into extruder, engine speed 30rpm, electric current 30A using metering pump by the middle part of extruder.The temperature in each area
It is 200-200-200-160-125-125-125-140 DEG C, mold aperture 1.2mm, hauling speed 500rpm, the batten drawn is straight
Diameter is 0.40mm, the case where sending out in advance does not occur.
Comparative example 1
100kg polystyrene is uniformly mixed with batch mixer, by extruder blanking, meanwhile, it is adopted in the middle part of extruder
4kg pentane is squeezed into extruder, engine speed 30rpm, electric current 30A with metering pump.The temperature in each area is 200-200-200-
160-125-125-125-140 DEG C, mold aperture 1.2mm, hauling speed 500rpm, batten diameter 1.0mm, occur apparent
Pre- heat condition.
Embodiment 2
The pigment black 31 of 100kg polystyrene, 2kg is uniformly mixed with batch mixer, by extruder blanking, meanwhile,
6kg isopentane is squeezed into extruder, engine speed 30rpm, electric current 30A using metering pump by the middle part of extruder.The temperature in each area
It is 200-200-200-160-125-125-125-140 DEG C, mold aperture 1.2mm, hauling speed 200rpm, the batten drawn is straight
Diameter is 0.43mm, the case where sending out in advance does not occur.
Embodiment 3
The pigment Blue-61 of 100kg polystyrene, 0.5kg is uniformly mixed with batch mixer, by extruder blanking, meanwhile,
3kg isopentane is squeezed into using metering pump by extruder, engine speed 30rpm, electric current 30A at the middle part of extruder.The temperature in each area
Degree is 180-180-170-160-125-115-115-130 DEG C, mold aperture 1.2mm, hauling speed 800rpm, the batten drawn
Diameter is 0.41mm, the case where sending out in advance does not occur.
The embodiment of the present application can directly by extruder squeeze out, atmospheric pressure environment and be greater than 100 DEG C at directly pelletizing simultaneously
It is cooling, to obtain the particle containing foaming agent, do not occur pre- discovery as.
This is because the heterocycle of polynitrogen heterocycle class compound or miscellaneous condensed ring substance improve or polystyrene are helped to mention
The high stability of pentane in the substrate, reducing escape velocity makes constant-pressure and high-temperature extrusion become possible.
These polynitrogen heterocycle class compounds are pigment simultaneously, can produce easily various colored expandable polystyrene material and
Black expandable polystyrene material.
The above statement is only preferred embodiment of the invention, it is noted that those skilled in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these also should be regarded as the protection model of invention
Within enclosing.
Claims (10)
1. expandable polystyrene composition, which is characterized in that according to parts by weight, comprising:
Polystyrene: 100 parts；
Polynitrogen heterocycle class compound: 0.5-2 parts；
Foaming agent: 3-6 parts.
2. expandable polystyrene composition according to claim 1, according to parts by weight characterized by comprising
Polystyrene: 100 parts；
Polynitrogen heterocycle class compound: 1 part；
Foaming agent: 4 parts.
3. expandable polystyrene composition according to claim 1 or 2, which is characterized in that the polynitrogen heterocycle class
Conjunction object is pigment yellow 93, pigment yellow 191, lemon yellow, permanent yellow 83, pigment red 38, paratonere 269, paratonere 63:1, pigment blue
61, at least one of pigment violet 32, pigment Violet 23, paratonere 178 or pigment black 31.
4. expandable polystyrene composition according to claim 1 or 2, which is characterized in that the foaming agent is positive penta
At least one of alkane, isopentane or neopentane.
5. the preparation method of expandable polystyrene composition according to claim 1 or 2, spy are, including following
Step:
Nitrogen catenation is uniformly mixed with polystyrene, the feeding inlet of extruder is added；
Foaming agent is squeezed into using metering pump by extruder at the middle part of extruder；
Batten is drawn and attenuated after the discharge port of extruder extrusion by dragger, enters in cold water after drawing-down and cools, last pelletizing.
6. the preparation method of expandable polystyrene composition according to claim 5, which is characterized in that the extruder
Equipped with 8 heating zones, the temperature range of each heating zone is 100-200 DEG C, and the temperature range of the last one heating zone is
100-150℃。
7. the preparation method of expandable polystyrene composition according to claim 5, which is characterized in that the dragger
Hauling speed be 200-800rpm.
8. the preparation method of expandable polystyrene composition according to claim 5, which is characterized in that the extruder
Die hole be 1-2mm.
9. the preparation method of expandable polystyrene composition according to claim 5, which is characterized in that more azepines
Cyclics be pigment yellow 93, pigment yellow 191, lemon yellow, permanent yellow 83, pigment red 38, paratonere 269, paratonere 63:1,
At least one of pigment Blue-61, pigment violet 32, pigment Violet 23, paratonere 178 or pigment black 31.
10. the preparation method of expandable polystyrene composition according to claim 5, which is characterized in that the foaming
Agent is at least one of pentane, isopentane or neopentane.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280093A (en) * | 2020-10-30 | 2021-01-29 | 天津斯坦利新型材料有限公司 | EPS particles and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875713A (en) * | 2012-09-29 | 2013-01-16 | 东莞新长桥塑料有限公司 | A kind of color expandable polystyrene resin and the method for preparing color expandable polystyrene resin in one step |
| CN104704033A (en) * | 2012-10-09 | 2015-06-10 | 积水化成品工业株式会社 | Expandable polystyrene resin particles, manufacturing method therefor, pre-expanded particles, and expanded molded article |
-
2019
- 2019-07-17 CN CN201910644204.1A patent/CN110343342A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102875713A (en) * | 2012-09-29 | 2013-01-16 | 东莞新长桥塑料有限公司 | A kind of color expandable polystyrene resin and the method for preparing color expandable polystyrene resin in one step |
| CN104704033A (en) * | 2012-10-09 | 2015-06-10 | 积水化成品工业株式会社 | Expandable polystyrene resin particles, manufacturing method therefor, pre-expanded particles, and expanded molded article |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280093A (en) * | 2020-10-30 | 2021-01-29 | 天津斯坦利新型材料有限公司 | EPS particles and preparation method thereof |
| CN112280093B (en) * | 2020-10-30 | 2023-04-11 | 天津斯坦利新型材料有限公司 | EPS particles and preparation method thereof |
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Application publication date: 20191018 |