CN106117741A - A kind of polyethylene composite foam material and preparation method thereof - Google Patents

A kind of polyethylene composite foam material and preparation method thereof Download PDF

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Publication number
CN106117741A
CN106117741A CN201610558941.6A CN201610558941A CN106117741A CN 106117741 A CN106117741 A CN 106117741A CN 201610558941 A CN201610558941 A CN 201610558941A CN 106117741 A CN106117741 A CN 106117741A
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polyethylene
mixing
foam material
preparation
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杨建江
丁晓荣
赵祖昌
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XINCHANG LVTAI PLASTIC CO Ltd
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XINCHANG LVTAI PLASTIC 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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/002—Methods
    • 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
    • C08J9/08—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 carbon dioxide
    • 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
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/18—Binary blends of expanding agents
    • 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
    • C08J2323/06—Polyethene
    • 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
    • C08J2407/00—Characterised by the use of natural rubber
    • 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
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K2201/002—Physical properties
    • C08K2201/006—Additives being defined by their surface area
    • 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
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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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)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

A kind of polyethylene composite foam material and preparation method thereof, belongs to homopolymer or the copolymer technical field of ethylene, is made up of the raw material of following weight part ratio: natural rubber, 100 parts；Polyethylene, 150 ~ 210 parts；Nanometer Zn CO3, 150 ~ 210 parts；Blowing agent AC, 1.5 ~ 3 parts；Foaming agent NaHCO3, 0.7 ~ 1.5 part；Stearic acid, 1.5 ~ 3 parts；Zinc oxide, 2 ~ 5 parts；Aluminium titanium composite coupler, 0.5 ~ 2 part；Kaolin, 10 ~ 24 parts.This foamed materials, by natural rubber and the blended and use of polyethylene, mutually makes up in performance, thus possesses good combination property.

Description

A kind of polyethylene composite foam material and preparation method thereof
Technical field
The invention belongs to homopolymer or the copolymer technical field of ethylene, be particularly related to a kind of polyethylene composite foam material Material and preparation method thereof.
Background technology
Foamed materials is with polymer as matrix, gas be scattered in formed in solid polymer containing a large amount of bubbles Aggregation, therefore it is also called porous material.Foamed materials is in addition to having the advantage of general material, with similar unexpanded material phase Ratio, foamed materials has many advantages: as light weight, heat-proof quality and sound insulation value are good, specific strength is high, have absorption impact Load-carrying ability, cheap, saving material etc..So foamed materials to be widely used in industry, agricultural and articles for daily use many Aspect.
Summary of the invention
It is an object of the invention to overcome defect mentioned above and deficiency, and a kind of polyethylene composite foam material is provided And preparation method thereof.
The technical scheme that the present invention realizes the employing of its purpose is as follows.
A kind of polyethylene composite foam material, is made up of the raw material of following weight part ratio:
Natural rubber, 100 parts；
Polyethylene, 150 ~ 210 parts；
Nanometer Zn CO3, 150 ~ 210 parts；
Blowing agent AC, 1.5 ~ 3 parts；
Foaming agent NaHCO3, 0.7 ~ 1.5 part；
Stearic acid, 1.5 ~ 3 parts；
OxidationZinc, 2 ~ 5 parts；
Aluminium titanium composite coupler, 0.5 ~ 2 part；
Kaolin, 10 ~ 24 parts.
As preferably, described polyethylene is high density polyethylene, and melt index is 0.01 ~ 0.5g/10min.
As preferably, described Kaolin granularity is 1.0u.
The preparation method of a kind of polyethylene composite foam material, comprises the following steps:
Step one. the preparation of mixing major ingredient: polyethylene is dissolved in isopropanol, the most again with nanometer Zn CO3It is combined coupling with aluminum titanium Agent mixes, and disperses 3h with ultrasound wave, and ultrasonic velocity is 1500m/s, and frequency is 15KHz ~ 10MHz, and wavelength is 0.01 ~ 10.00cm, prepares mixing major ingredient after drying and volatilizing isopropanol；Mixing major ingredient is carried out in dehydrator drying and processing, makes moisture Content is less than 1%；
Step 2. the preparation of mixed accessories: by blowing agent AC and foaming agent NaHCO3Grind after mixing and cross 80 mesh sieves, preparing multiple Close foaming agent；Then composite foamable agent, Kaolin, stearic acid are put in high-speed mixer together and mixed after mix homogeneously Adjuvant；
Step 3. banburying: by natural rubber under the conditions of 50 DEG C ~ 60 DEG C mixing with zinc oxide 40 ~ 50 seconds, be subsequently adding mixing main Expecting mixing 60 ~ 70 seconds, adding mixed accessories and temperature rises to 160 DEG C ~ 180 DEG C, mixing time is 7 ~ 8 minutes, park 12 ~ Slice after 24 hours, prepares expandable sheet material；
Step 4. sulfuration: expandable sheet material is carried out on vulcanizing press moulded from foam molding, curing temperature be 160 DEG C extremely 170 DEG C, molding pressure 1MPa, pressure-maintaining and heat-preservation 3 ~ 5 minutes, prepare polyethylene composite foam material.
Through constantly research and experiment, the connection between theory and practice, technical scheme has broken through following technology Difficulty:
1. this foamed materials, by natural rubber and the blended and use of polyethylene, mutually makes up in performance, thus possesses good Combination property；
2. employ nanometer Zn CO3, to polythene material activeness and quietness.Nanometer Zn CO3Interpenetrate with polyethylene, contact area Increase, improve both adhesion strengths.
3. use composite foamable agent, by blowing agent AC and foaming agent NaHCO3Reasonably combined, be processed as 160 DEG C ~ When 180 DEG C, remain to realize good foaming effect, and avoid the appearance of recovery phenomenon.
4. the reasonable employment of zinc oxide.The interpolation of zinc oxide, can improve the thermal oxidation resistance effect of material, but zinc oxide adds Dosage is excessive, it will reduces the percentage elongation of material, thus affects foaming effect.Therefore, it is necessary to reasonable employment zinc oxide, including Determine interpolation opportunity and the addition of zinc oxide, thus between the thermostability and percentage elongation of material, obtain balance.Due to this The processing temperature of technical scheme is relatively low, so that the usage amount of zinc oxide is greatly reduced.From original about 15 parts, fall Low is 2 ~ 5 parts, thus ensure that the foaming effect of material.
The most kaolinic reasonable employment.Kaolin changes natural rubber and the rheological property of polyethylene, makes both have very Good viscosity, in order to ensure polyethylene and nanometer Zn CO3No longer reunite after being uniformly dispersed.Meanwhile, Kaolin becomes foam core, Theoretical according to foaming, reduce the potential energy at foaming initial stage, substantially increase the gas release at foaming initial stage, thus enhance material The foaming effect of material.
6. have employed one-step melting method, be provided with rational step and mixing parameter, spread sufficient premise at composition Under, save mixing time.Mixing speed, relative to the two mixing methods of step, can promote more than 60%.
Detailed description of the invention
Below the present invention is described in further detail.
A kind of polyethylene composite foam material, is made up of the raw material of following weight part ratio:
Natural rubber, 100 parts；
Polyethylene, 150 ~ 210 parts；
Nanometer Zn CO3, 150 ~ 210 parts；
Blowing agent AC, 1.5 ~ 3 parts；
Foaming agent NaHCO3, 0.7 ~ 1.5 part；
Stearic acid, 1.5 ~ 3 parts；
OxidationZinc, 2 ~ 5 parts；
Aluminium titanium composite coupler, 0.5 ~ 2 part；
Kaolin, 10 ~ 24 parts.
Natural rubber, high comprehensive performance, there is higher elasticity and flexural property.Commercial, such as: Hainan natural rubber The SCR-5 that limited company of industrial group produces.
Polyethylene is a kind of thermoplastic material, has chemical-resistance and the electrical insulation capability of excellence, is widely used for Preparation carries or holds pipeline and the wire cable insulating layer etc. of chemicals.As preferably, described polyethylene is that high density is gathered Ethylene HDPE, melt index is 0.01 ~ 0.5g/10min.
Nanometer Zn CO3Specific surface area be 20m2/ g, particle diameter is 50 ~ 70nm.The appearance of nano material and develop into polyethylene Modification provide a new path, have experiment to show, the addition of nano material, can be to polythene material activeness and quietness.But Being that undressed nano material is easily agglomerated into bigger granule, dispersion effect in polythene material is the most bad, interface Adhesion strength is low, it is impossible to be effectively improved the performance of polythene material.The addition of coupling agent, although there is a certain degree of reinforcement The effect of system, but still can not effectively solve the rendezvous problem of nano material.
Blowing agent AC, chemical name: azodicarbonamide, molecular formula: C2H4O2N4, there is decomposition temperature high, decompose prominent The property sent out is strong, the feature that thermal discharge is big.Blowing agent AC does not decomposes at 160 DEG C, and when 170 DEG C, decomposition rate is little, along with the rising of temperature (>=180 DEG C), decomposition rate significantly improves, decompose induction period effectively shorten, decompose sudden by force.But when processing temperature is higher Time, recovery phenomenon, alone blowing agent AC easily occur, the preparation of this foamed materials should not be directly applied for.
Foaming agent NaHCO3, there is safety, endothermic decomposition, feature that nucleating effect is good.Foaming agent NaHCO3Open at 115 DEG C Beginning to decompose, heat decomposition temperature is relatively low, and along with temperature raises, decomposition tends towards stability, and decomposition rate is more slow, and 190 DEG C have been decomposed Finish.AC and NaHCO3Share, form composite foamable agent, improve blowing agent AC gas forming amount at relatively low temperature, thus Meet the preparation technology preparing this expanded material.
Zinc oxide, uses as stabilizer.
Aluminium titanium composite coupler, commercial.
Kaolin, is commonly called as white clay, and its structure is Al2O3(SiO2)2H2O, plasticity and associativity are strong, and good insulating is fire-resistant Degree height, its granular size, its plasticity, ion exchange capacity, processability, drying property are all had a significant impact.
The preparation method of a kind of polyethylene composite foam material, comprises the following steps:
Step one. the preparation of mixing major ingredient: polyethylene is dissolved in isopropanol, the most again with nanometer Zn CO3It is combined coupling with aluminum titanium Agent mixes, and disperses 3h with ultrasound wave, and ultrasonic velocity is 1500m/s, and frequency is 15KHz ~ 10MHz, and wavelength is 0.01 ~ 10.00cm, prepares mixing major ingredient after drying and volatilizing isopropanol；Mixing major ingredient is carried out in dehydrator drying and processing, makes moisture Content is less than 1%；
Nanometer Zn CO3As a kind of inorganic filler, the character of particle surface is hydrophilic oleophobic, is difficult in the polymer uniformly divide Dissipate, and and polymeric matrix between interface bond strength low.After coupling agent treatment, nanometer Zn CO3And between polyethylene There is certain bond strength.Further, after ultrasonic, nanometer Zn CO3Interpenetrating with polyethylene, contact area increases, and carries Both adhesion strengths are risen.
Step 2. the preparation of mixed accessories: by blowing agent AC and foaming agent NaHCO3Grind and cross 80 mesh sieves, system after mixing Obtain composite foamable agent；Then composite foamable agent, Kaolin, stearic acid are put in high-speed mixer together and obtain after mix homogeneously Mixed accessories；
Kaolin, is adding the Kaolin of 1.0u granularity, in order to change natural rubber and polyethylene to founding property of the technical program Rheological property, make both have good viscosity, in order to ensure polyethylene and nanometer Zn CO3No longer reunite after being uniformly dispersed.
Meanwhile, Kaolin further increases the bubble property of this material.Kaolin decompose produce Al and Si ion pair its Its ion has polarization, adds the shrinkage factor of polyethylene, improves plasticity and the viscosity of composite, thus improves material The bubble property of material.
Step 3. banburying: by natural rubber under the conditions of 50 DEG C ~ 60 DEG C mixing with zinc oxide 40 ~ 50 seconds, be subsequently adding mixed Closing major ingredient mixing 60 ~ 70 seconds, add mixed accessories and temperature rises to 160 DEG C ~ 180 DEG C, mixing time is 7 ~ 8 minutes, stops Put slice after 12 ~ 24 hours, prepare expandable sheet material；
Step 4. sulfuration: expandable sheet material is carried out on vulcanizing press moulded from foam molding, curing temperature be 160 DEG C extremely 170 DEG C, molding pressure 1MPa, pressure-maintaining and heat-preservation 3 ~ 5 minutes, prepare polyethylene composite foam material.
This programme have employed one-step melting method.One-step melting method is relative to the two mixing methods of step, and mixing time is short, and efficiency is high, But the defect that composition dispersion is uneven easily occurs.The technical program uses one-step melting method, and determines one reasonably Mixing order, mixing time and melting temperature, it is ensured that the scattered uniformity of composition.
This expanded material, cell density is 8.9 × 109~10.3×109Individual/cm3, relative to the cell density of commercial material 4~5×109Individual/cm3, improve about about one times.
This expanded material, porosity is 92 ~ 93%, relative to the porosity 75% of commercial material, improves about 22.6%.
This expanded material, density is 0.22g/cm3, the density of commercial material is about 0.35g/cm3。
This expanded material, pore is fine and closely woven, uniform, and rate of closed hole is high, has preferable comprehensive mechanical property, and elastic modelling quantity is about etc. In 550MPa, bending strength >=78MPa, processing characteristics is good.
The present invention is illustrated according to embodiment, on the premise of without departing from present principles, if this device can also be made Dry deformation and improvement.It should be pointed out that, the technical scheme that the modes such as all employing equivalents or equivalent transformation are obtained, all fall within this In the protection domain of invention.

Claims (4)

1. a polyethylene composite foam material, it is characterised in that be made up of the raw material of following weight part ratio:
Natural rubber, 100 parts；
Polyethylene, 150 ~ 210 parts；
Nanometer Zn CO3, 150 ~ 210 parts；
Blowing agent AC, 1.5 ~ 3 parts；
Foaming agent NaHCO3, 0.7 ~ 1.5 part；
Stearic acid, 1.5 ~ 3 parts；
OxidationZinc, 2 ~ 5 parts；
Aluminium titanium composite coupler, 0.5 ~ 2 part；
Kaolin, 10 ~ 24 parts.
2. a kind of polyethylene composite foam material as claimed in claim 1, it is characterised in that described polyethylene is that high density is gathered Ethylene HDPE, melt index is 0.01 ~ 0.5g/10min.
3. a kind of polyethylene composite foam material as claimed in claim 1, it is characterised in that described Kaolin granularity is 1.0u。
4. the preparation method of a polyethylene composite foam material as claimed in claim 1, it is characterised in that include following step Rapid:
Step one. the preparation of mixing major ingredient: polyethylene is dissolved in isopropanol, the most again with nanometer Zn CO3And aluminium titanium composite coupler Mixing, and disperses 3h with ultrasound wave, and ultrasonic velocity is 1500m/s, and frequency is 15KHz ~ 10MHz, and wavelength is 0.01 ~ 10.00cm, prepares mixing major ingredient after drying and volatilizing isopropanol；Mixing major ingredient is carried out in dehydrator drying and processing, makes moisture Content is less than 1%；
Step 2. the preparation of mixed accessories: by blowing agent AC and foaming agent NaHCO3Grind after mixing and cross 80 mesh sieves, preparing multiple Close foaming agent；Then composite foamable agent, Kaolin, stearic acid are put in high-speed mixer together and mixed after mix homogeneously Adjuvant；
Step 3. banburying: by natural rubber under the conditions of 50 DEG C ~ 60 DEG C mixing with zinc oxide 40 ~ 50 seconds, be subsequently adding mixing main Expecting mixing 60 ~ 70 seconds, adding mixed accessories and temperature rises to 160 DEG C ~ 180 DEG C, mixing time is 7 ~ 8 minutes, park 12 ~ Slice after 24 hours, prepares expandable sheet material；
Step 4. sulfuration: expandable sheet material is carried out on vulcanizing press moulded from foam molding, curing temperature be 160 DEG C extremely 170 DEG C, molding pressure 1MPa, pressure-maintaining and heat-preservation 3 ~ 5 minutes, prepare polyethylene composite foam material.
CN201610558941.6A 2016-07-17 2016-07-17 A kind of polyethylene composite foam material and preparation method thereof Pending CN106117741A (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN106832593A (en) * 2017-03-12 2017-06-13 广西丰达三维科技有限公司 A kind of printing consumables and preparation method thereof
CN106867147A (en) * 2017-03-12 2017-06-20 广西丰达三维科技有限公司 A kind of foamed material and its application
CN106893165A (en) * 2017-03-12 2017-06-27 广西丰达三维科技有限公司 A kind of environment-friendly type macromolecule foamed material
CN106893179A (en) * 2017-03-12 2017-06-27 广西丰达三维科技有限公司 A kind of sound insulation type material, preparation method and applications
CN111087700A (en) * 2020-01-19 2020-05-01 赢胜节能集团有限公司 Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106832593A (en) * 2017-03-12 2017-06-13 广西丰达三维科技有限公司 A kind of printing consumables and preparation method thereof
CN106867147A (en) * 2017-03-12 2017-06-20 广西丰达三维科技有限公司 A kind of foamed material and its application
CN106893165A (en) * 2017-03-12 2017-06-27 广西丰达三维科技有限公司 A kind of environment-friendly type macromolecule foamed material
CN106893179A (en) * 2017-03-12 2017-06-27 广西丰达三维科技有限公司 A kind of sound insulation type material, preparation method and applications
CN111087700A (en) * 2020-01-19 2020-05-01 赢胜节能集团有限公司 Mute heat-insulation slow-resilience rubber and plastic and preparation method thereof

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