CN106496856A - Micro-foaming material and preparation method thereof and refrigeration plant - Google Patents
Micro-foaming material and preparation method thereof and refrigeration plant Download PDFInfo
- Publication number
- CN106496856A CN106496856A CN201610955375.2A CN201610955375A CN106496856A CN 106496856 A CN106496856 A CN 106496856A CN 201610955375 A CN201610955375 A CN 201610955375A CN 106496856 A CN106496856 A CN 106496856A
- Authority
- CN
- China
- Prior art keywords
- micro
- parts
- foaming material
- plasticizer
- foaming
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions 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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions 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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—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
-
- 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
- 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
- C08J2327/00—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 a halogen; Derivatives of such polymers
- C08J2327/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The micro-foaming material of the present invention, by weight, including following component：The micro-foaming material of the present invention, by weight, including following component：60 80 parts of polyvinyl chloride resin；2.5 10 parts of foaming agent；12 37 parts of plasticizer；15 parts of heat stabilizer；5 20 parts of inorganic filler；13 parts of lubricating system.The present invention also provides a kind of refrigeration plant of the preparation method and application micro-foaming material of micro-foaming material.The micro-foaming material of technical scheme carries out fretting map by adding foaming agent, reduces heat conductivity, improves the resilience of material, can effectively play a part of to seal and be incubated.The refrigeration plant of the present invention can reduce power consumption, saves energy.
Description
Technical field
The present invention relates to Material Field, and in particular to a kind of micro-foaming material and preparation method thereof and refrigeration plant.
Background technology
Domestic refrigerating appts generally arrange gasket to play a part of to seal and be incubated in door body towards the side of casing,
Existing PVC (polrvinyl chloride) gaskets heat conductivity is high, resilience is poor, affects sealing and heat insulation effect.
Content of the invention
The main object of the present invention is to provide a kind of micro-foaming material and preparation method thereof and refrigeration plant, it is intended to improve door
The sealing of strip of paper used for sealing and heat insulation effect.
For achieving the above object, the present invention provides a kind of micro-foaming material, by weight, including following component：
Preferably, the foaming agent is inorganic foaming agent, and the inorganic foaming agent is citric acid, magnesium carbonate and sodium bicarbonate
In one or more.
Preferably, the plasticizer includes solid plasticizer and liquid plasticizer, wherein, liquid described in micro-foaming material
Body plasticizer is 10-35 parts by weight, and the liquid plasticizer is 2-5 parts by weight.
Preferably, the liquid plasticizer includes following component：Diisononyl adipate and trioctyl trimellitate (TOTM) are total
60%-80%, epoxy soybean oil are 5%-10%, polyester 15%-35%.
Preferably, also include in the micro-foaming material that other auxiliary agents of parts by weight 1-3 parts, other auxiliary agents described include
Pigment, antibacterial mildew inhibitor and processing aid.
Additionally, the present invention also provides a kind of preparation method of micro-foaming material, comprise the following steps：
Step one, powdery polyvinyl chloride resin and heat stabilizer are mixed, stirring；
Step 2, persistently stir and sequentially add foaming agent and plasticizer；
Step 3, inorganic filler and lubricating system is stirred and added, obtain semi-finished product powder；
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Preferably, the mixing speed in the step one is 400-500 rev/min, and mixing time is 3-10 minutes.
Preferably, the step 2 is specifically included：
Stirred with 400-500 rev/min of speed, and while stirring with the adding rate of 1-3 part/3 minute successively
Add foaming agent and plasticizer；
Rotating speed is adjusted to 1000～2500 revs/min after the completion of foaming agent and plasticizer add, keeping temperature is 90-
110 DEG C, stir 15-25 minutes.
Preferably, using single screw rod or twin screw plasticizing extruding pelletization；Wherein, the draw ratio of screw rod is 15-30, and screw rod adds
Material section temperature is 60-100 DEG C, and compression section temperature is 135-150 DEG C, and melt zone is 140-155 DEG C, and head temperature is 145-155
℃.
Additionally, for achieving the above object, the present invention also provides a kind of refrigeration plant, including gasket, in the gasket
Magnetic stripe is provided with, the gasket is made up of any of the above-described described micro-foaming material.
The micro-foaming material of the present invention, by weight, including following component：Polyvinyl chloride resin 60-80 parts；Foaming agent 1-10
Part；Plasticizer 12-37 parts；Heat stabilizer 1-5 parts；Inorganic filler 5-20 parts；Lubricating system 1-3 parts.Technical scheme
Micro-foaming material by add foaming agent carry out fretting map, reduce density of material and heat conductivity, improve material return
Elasticity, can effectively play a part of to seal and be incubated.
Specific embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example a part of embodiment only of the invention, rather than whole embodiments.Embodiment in based on the present invention, this area are general
The every other embodiment obtained under the premise of creative work is not made by logical technical staff, belongs to present invention protection
Scope.
In addition, the technical scheme between each embodiment of the invention can be combined with each other, but must be general with this area
Logical technical staff can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or cannot realize this
The combination of technical scheme is not present, also not within the protection domain of application claims.
The present invention provides a kind of micro-foaming material, by weight, including following component：
It is understood that the polyvinyl chloride resin of polyvinyl chloride resin in the present embodiment using powdery, its degree of polymerization preferred scope is
1200-1400, to its particular type, the present invention is not limited, and can be the polyvinyl chloride resin that can be obtained on known, market.
Known Ca-Zn (calcium-zinc) complex stabilizer selected by heat stabilizer in the present invention, and PVC is by Vinyl Chloride Monomer
Through free radical polymerization, in the reaction, strand is in propagation process, it may occur that chain transfer reaction and generate tertiary carbon
Atom, the chlorine atom being connected with tertiary carbon atom and hydrogen atom, because Cloud Distribution density is little, bond energy is low, becomes active atom,
It is easy to slough a hydrogen chloride with adjacent hydrogen atom and chlorine atom.Due to the heat stability of PVC bad, so must be added to
Corresponding stabilizer, repairs the defect of PVC chains, while absorbing the hydrogen chloride that PVC dechlorinations are produced in time.Ring is selected in the present embodiment
The Ca-Zn complex stabilizer of guarantor both can guarantee that reaction was normally carried out, and can also prevent the pollution of the environment as heat stabilizer.
It is understood that further as PVC viscosity is big, shear big processing characteristic, adding in the present embodiment
Corresponding lubricant is added while stabilizer.Lubricant in the present embodiment is the profit that in-lubricant and external lubricant are engaged
Gliding mass system.Wherein, in-lubricant is the small molecular organic compounds with polar group, and it can be preferably compatible with PVC macromole,
These small molecules uniformly can be distributed between PVC macromolecular structure units, so that the movement between PVC macromole is more
Easily, the mobility of PVC materials is improved, is reduced the material heat produced in friction and shearing, is eliminated the ripple of melt temperature
Dynamic.External lubricant is typically the relatively low organic compound of nonpolarity or polarity, and fusing point is at 60 DEG C -95 DEG C.It is characterized in hydrocarbon chain
Long, the poor compatibility with PVC.External lubricant melts under uniform temperature and pressure effect and separates out to bath surface, and molten
A kind of limitans is formed between body and metal, and the limitans can reduce fused materials to infrastructure device and the adhesion of mould.This reality
Applying example uses stearic acid with paraffin as lubricating system, can play good lubricant effect, also be avoided that and cause environmental pollution.
Inorganic filler in the present embodiment mainly using Calcium Carbonate or barium sulfate, can be effectively improved material wearability,
Resistance to ag(e)ing, while also improve brightness effect.
The micro-foaming material heat conductivity of the present embodiment is low, resilience is high, can effectively play the work of sealing and insulation
With.
Preferably, the foaming agent is inorganic foaming agent, and the inorganic foaming agent is citric acid, magnesium carbonate and sodium bicarbonate
In one or more.
The foaming agent that the present embodiment is selected decomposes and generates carbon dioxide, and decomposition temperature is low, low production cost, easily obtain
, can effectively reduce production cost.The PVC material density for generating simultaneously is also significantly lower than traditional PVC material.
Preferably, the plasticizer includes solid plasticizer and liquid plasticizer.Wherein, in micro-foaming material, described
Liquid plasticizer is 10-35 parts by weight, and the liquid plasticizer is 2-5 parts by weight.
Preferably, the liquid plasticizer includes following component by weight percentage：DINA (diisononyl adipate) and
TOTM (trioctyl trimellitate (TOTM)) total 60%-80%, ESO (epoxy soybean oil) are 5%-10%, polyester ratio 15%-
35%.Solid plasticizer be TPE (Thermoplastic Elastomer thermoplastic elastomer (TPE)s), P83 (PNBR),
EVA (ethylene-vinyl acetate copolymer), TPU (Thermoplastic polyurethanes Polyurethane Thermoplastic Elastomer rubbers
Glue) at least one.
The plasticizer of environment-friendly type has been selected in the present embodiment, has caused environmental pollution during preventing production and use.Enter one
Step, liquid plasticizer increased the ESO of environment protection heat-proof to increase the thermostability of material, additionally, further adding in the present embodiment
Add the polyester of environmental protection, can effectively lift the resistance to migration of material.
Preferably, also include in the micro-foaming material that other auxiliary agents of parts by weight 1-3 parts, other auxiliary agents described include
Pigment, antibacterial mildew inhibitor and processing aid.
In order to be further ensured that material property, help known to other also used in material processing in the present embodiment
Agent, including pigment, antibacterial mildew inhibitor and processing aid.Wherein pigment is should be as 0-1 parts according to parts by weight by addition, is resisted
Bacterium antifungus agent should be as 0-1 parts according to parts by weight by addition, and processing aid is should be according to parts by weight by addition
For 0-1 parts.Pigment can be known pigment, and its color is according to selected by real needs.Antibacterial mildew inhibitor can use OBPA
Known, nontoxic antibacterial mildew inhibitors such as (the double phenoxazine arsenic of 10,10 '-oxo).And also should add as the case may be in the course of processing
Plus the processing aid of such as ACR series etc..
For achieving the above object, present invention also offers a kind of preparation method of micro-foaming material, comprises the following steps：
Step one, powdery polyvinyl chloride resin and heat stabilizer are mixed, stirring；
Step 2, persistently stir and sequentially add foaming agent and plasticizer；
Step 3, inorganic filler and lubricating system is stirred and added, obtain semi-finished product powder；
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Preferably, the mixing speed in the step one is 400-500 rev/min, and mixing time is 3-10 minutes.
Preferably, the step 2 is specifically included：
Stirred with 400-500 rev/min of speed, and added with the adding rate of 1-3 part/3 minute while stirring
Add foaming agent and plasticizer successively；
Rotating speed is adjusted to 1000～2500 revs/min after the completion of foaming agent and plasticizer add, keeping temperature is 90-
110 DEG C, stir 15-25 minutes.
System temperature is caused to raise it should be appreciated that can also produce heat in whipping process, therefore, rotating speed herein is simultaneously
Be not changeless, when system temperature is too high, should suitably turn down rotating speed, after temperature drop, should heighten again rotating speed with
Maintain the temperature between 90-110 degree Celsius.Further, it is also possible to by using the temperature adjusting that carries of blender or batch mixer
Device control system temperature.
Preferably, in the step 4, using single screw rod or twin screw plasticizing extruding pelletization；Wherein, the draw ratio of screw rod
For 15-30, screw rod feeding section temperature is 60-100 DEG C, and compression section temperature is 135-150 DEG C, and melt zone is 140-155 DEG C, head
Temperature is 145-155 DEG C.
Additionally, for achieving the above object, the present invention also provides a kind of refrigeration plant, including gasket, in the gasket
Magnetic stripe is provided with, micro-foaming material of the gasket described in any of the above-described is made.
Micro-foaming material proposed by the present invention and preparation method thereof and refrigeration plant are carried out below by way of specific embodiment
Illustrate：
Embodiment one
A kind of micro-foaming material, including following each composition by weight：
60 parts of polyvinyl chloride resin
2.5 parts of foaming agent (sodium bicarbonate)
10 parts of liquid plasticizer, wherein DINA3 parts, TOTM3 parts, ESO1 parts, 3 parts of polyester
2 parts of solid plasticizer (P83)
1 part of heat stabilizer (Ca-Zn complex stabilizer)
5 parts of inorganic filler (Calcium Carbonate)
1 part of lubricating system, wherein 0.5 part of stearic acid, 0.5 part of paraffin
Other auxiliary agents 0
The preparation method of the micro-foaming material is comprised the following steps：
Step one, take powdery polyvinyl chloride resin and heat stabilizer mixing after, stirred 3 minutes with 400 revs/min of speed.
Step 2, persistently stirring simultaneously sequentially add foaming agent, solid plasticizer and liquid plasticising with the speed of 1 part/3 minutes
Agent, liquid plasticizer add after the completion of improve mixing speed to 1000 revs/min, and control temperature 90-110 degree Celsius it
Between, stir 15 minutes.
Step 3, mixing speed is turned down to 400 revs/min and add inorganic filler and lubricating system, after stirring 10 minutes
Obtain semi-finished product powder.
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Embodiment two
A kind of micro-foaming material, including following each composition by weight：
80 parts of polyvinyl chloride resin
10 parts of foaming agent (magnesium carbonate)
35 parts of liquid plasticizer, wherein DINA16 parts, TOTM12 parts, ESO1.75 parts, 5.25 parts of polyester
8 parts of solid plasticizer (TPE)
5 parts of heat stabilizer (Ca-Zn complex stabilizer)
20 parts of inorganic filler (Calcium Carbonate)
3 parts of lubricating system, wherein 2 parts of stearic acid, 1 part of paraffin
3 parts of other auxiliary agents, wherein 1 part of pigment, 1 part of antibacterial mildew inhibitor, 1 part of processing aid (ACR530)
The preparation method of the micro-foaming material is comprised the following steps：
Step one, take powdery polyvinyl chloride resin and heat stabilizer mixing after stirred 10 minutes with 500 revs/min of speed.
Step 2, persistently stirring simultaneously sequentially add foaming agent, solid plasticizer and liquid plasticising with the speed of 3 parts/3 minutes
Agent, liquid plasticizer add after the completion of improve mixing speed to 2500 revs/min, and control temperature 90-110 degree Celsius it
Between, stir 25 minutes.
Step 3, mixing speed is turned down to 500 revs/min and add inorganic filler, lubricating system and other auxiliary agents, stir
Semi-finished product powder is obtained after 15 minutes.
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Embodiment three
A kind of micro-foaming material, including following each composition by weight：
62 parts of polyvinyl chloride resin
2.5 parts of foaming agent (citric acid)
24 parts of liquid plasticizer, wherein DINA10 parts, TOTM4.4 parts, ESO1.2 parts, 8.4 parts of polyester
4 parts of solid plasticizer (P83)
3 parts of heat stabilizer (Ca-Zn complex stabilizer)
14 parts of inorganic filler (barium sulfate)
1.2 parts of lubricating system, wherein 0.7 part of stearic acid, 0.5 part of paraffin
0.3 part of other auxiliary agents, wherein 0.1 part of pigment, 0.1 part of antibacterial mildew inhibitor, 0.1 part of processing aid (ACR530)
The preparation method of the micro-foaming material is comprised the following steps：
Step one, take powdery polyvinyl chloride resin and heat stabilizer mixing after stirred 5 minutes with 430 revs/min of speed.
Step 2, persistently stirring simultaneously sequentially add the increasing of foaming agent, solid plasticizer and liquid with the speed of 1.3 parts/3 minutes
Modeling agent, improves mixing speed after the completion of liquid plasticizer adds to 1500 revs/min, and controls temperature at 90-110 degree Celsius
Between, stir 12 minutes.
Step 3, mixing speed is turned down to 400 revs/min and add inorganic filler, lubricating system and other auxiliary agents, stir
Semi-finished product powder is obtained after 11 minutes.
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Example IV
A kind of micro-foaming material, including following each composition by weight：
65 parts of polyvinyl chloride resin
3 parts of foaming agent (sodium bicarbonate)
21 parts of liquid plasticizer, wherein DINA7 parts, TOTM7.7 parts, ESO2.1 parts, 2.4 parts of polyester
3.2 parts of solid plasticizer (EVA)
2.5 parts of heat stabilizer (Ca-Zn complex stabilizer)
14 parts of inorganic filler (barium sulfate)
1.1 parts of lubricating system, wherein 0.6 part of stearic acid, 0.5 part of paraffin
0.2 part of other auxiliary agents, wherein 0.05 part of pigment, 0.05 part of antibacterial mildew inhibitor, 0.1 part of processing aid
The preparation method of the micro-foaming material is comprised the following steps：
Step one, take powdery polyvinyl chloride resin and heat stabilizer mixing after stirred 6 minutes with 450 revs/min of speed.
Step 2, persistently stirring simultaneously sequentially add the increasing of foaming agent, solid plasticizer and liquid with the speed of 1.8 parts/3 minutes
Modeling agent, improves mixing speed after the completion of liquid plasticizer adds to 2000 revs/min, and controls temperature at 90-110 degree Celsius
Between, stir 13 minutes.
Step 3, mixing speed is turned down to 450 revs/min and add inorganic filler, lubricating system and other auxiliary agents, stir
Semi-finished product powder is obtained after 10 minutes.
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
Embodiment five
A kind of micro-foaming material, including following each composition by weight：
68 parts of polyvinyl chloride resin
4.5 parts of foaming agent (sodium bicarbonate)
20 parts of liquid plasticizer, wherein DINA10 parts, TOTM5 parts, ESO2 parts, 3 parts of polyester
4 parts of solid plasticizer (TPU)
2 parts of heat stabilizer (Ca-Zn complex stabilizer)
10 parts of inorganic filler (barium sulfate)
1.4 parts of lubricating system, wherein 1 part of stearic acid, 0.4 part of paraffin
0.1 part of other auxiliary agents, wherein 0.05 part of pigment, 0 part of antibacterial mildew inhibitor, 0.05 part of processing aid
The preparation method of the micro-foaming material is comprised the following steps：
Step one, take powdery polyvinyl chloride resin add high speed mixer in be stirring evenly and then adding into 400 revs/min of speed
Heat stabilizer, continues to stir 3 minutes with 400 revs/min of speed.
Step 2, persistently stirring simultaneously sequentially add foaming agent, solid plasticizer and liquid plasticising with the speed of 1 part/3 minutes
Agent, liquid plasticizer add after the completion of improve mixing speed to 1000 revs/min, and control temperature 90-110 degree Celsius it
Between, stir 10-15 minutes.
Step 3, mixing speed is turned down to 400 revs/min and add inorganic filler, lubricating system and other auxiliary agents, stir
Semi-finished product powder is obtained after 10 minutes.
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
The beneficial effect of the preparation method of micro-foaming material in various embodiments of the present invention is described referring to following experiments：
1 material ratings result of table
Further, by the micro-foaming material that obtains on known door sealing strip product line through known extrusion, lead
Draw, cool down, cutting, filling the techniques such as magnetic stripe, welding, production obtains the gasket of refrigeration plant.In the present embodiment further with
Certain model refrigerator carries out energy consumption measure using the gasket that above-mentioned micro-foaming material makes in the case of other conditions identical, surveys
Test result is as follows.
2 refrigerator evaluation result of table
Micro-foaming material according to prepared by the evaluation result in table 1 can be seen that above-mentioned five embodiments has density
Low, heat conductivity is low, the advantage that resilience is high；Under same case, when refrigerator is using former gasket, 24 hours power consumption about 1.2
Kilowatt hour, can be seen that the door that the micro-foaming material prepared in above-mentioned five embodiments of application makes by the evaluation result in table 2
The refrigeration plant power consumption of strip of paper used for sealing can effectively save electricity；Preferably, according to embodiment 2 formula and preparation method prepare
Micro-foaming material and apply the micro-foaming material refrigeration plant result on trial be better than other embodiment result on trial.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, every at this
Under the inventive concept of invention, the equivalent structure transformation made using present specification, or directly/it is used in indirectly other
Related technical field is included in the scope of patent protection of the present invention.
Claims (10)
1. a kind of micro-foaming material, it is characterised in that by weight, including following component：
2. micro-foaming material as claimed in claim 1, it is characterised in that the foaming agent is inorganic foaming agent, described inorganic
Foaming agent is one or more in citric acid, magnesium carbonate and sodium bicarbonate.
3. micro-foaming material as claimed in claim 1, it is characterised in that the plasticizer includes that solid plasticizer and liquid increase
Modeling agent, wherein, liquid plasticizer described in micro-foaming material is 10-35 parts by weight, and the liquid plasticizer is by weight
Amount number is 2-5 parts.
4. micro-foaming material as claimed in claim 3, it is characterised in that the liquid plasticizer includes following component：Oneself two
Sour dinonyl and the total 60%-80% of trioctyl trimellitate (TOTM), epoxy soybean oil are 5%-10%, polyester 15%-35%.
5. the micro-foaming material as described in any one of claim 1-4, it is characterised in that also include weight in the micro-foaming material
Other auxiliary agents of amount number 1-3 parts, other auxiliary agents described include pigment, antibacterial mildew inhibitor and processing aid.
6. a kind of preparation method of the micro-foaming material as described in any one of claim 1-5, it is characterised in that including following step
Suddenly：
Step one, powdery polyvinyl chloride resin and heat stabilizer are mixed, stirring；
Step 2, persistently stir and sequentially add foaming agent and plasticizer；
Step 3, inorganic filler and lubricating system is stirred and added, obtain semi-finished product powder；
Step 4, by the semi-finished product powder plasticizing extruding pelletization obtain graininess micro-foaming material.
7. method as claimed in claim 6, it is characterised in that the mixing speed in the step one is 400-500 rev/min
Clock, mixing time are 3-10 minutes.
8. method as claimed in claim 6, it is characterised in that the step 2 is specifically included：
Stirred with 400-500 rev/min of speed, and added with the adding rate of 1-3 part/3 minute successively while stirring
Foaming agent and plasticizer；
Rotating speed is adjusted after the completion of foaming agent and plasticizer add to 1000～2500 revs/min, and keeping temperature is 90-110 DEG C,
Stirring 15-25 minutes.
9. method as claimed in claim 6, it is characterised in that in the step 4, is squeezed using single screw rod or twin screw plasticizing
Go out pelletize；Wherein, the draw ratio of screw rod is 15-30, and screw rod feeding section temperature is 60-100 DEG C, and compression section temperature is 135-150
DEG C, melt zone is 140-155 DEG C, and head temperature is 145-155 DEG C.
10. a kind of refrigeration plant, including gasket, is provided with magnetic stripe in the gasket, it is characterised in that the gasket is by weighing
Profit requires that the micro-foaming material described in 1 to 5 any one is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955375.2A CN106496856A (en) | 2016-10-27 | 2016-10-27 | Micro-foaming material and preparation method thereof and refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955375.2A CN106496856A (en) | 2016-10-27 | 2016-10-27 | Micro-foaming material and preparation method thereof and refrigeration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106496856A true CN106496856A (en) | 2017-03-15 |
Family
ID=58321355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610955375.2A Pending CN106496856A (en) | 2016-10-27 | 2016-10-27 | Micro-foaming material and preparation method thereof and refrigeration plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106496856A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916468A (en) * | 2017-03-21 | 2017-07-04 | 合肥华凌股份有限公司 | Fretting map door seal pellet and preparation method thereof and gasket |
| WO2018223507A1 (en) * | 2017-06-09 | 2018-12-13 | 合肥华凌股份有限公司 | Manufacturing method for door seal, door seal assembly and refrigerator |
| CN109931744A (en) * | 2017-12-19 | 2019-06-25 | Aqua株式会社 | Seal strip for refrigerator door |
| CN110591244A (en) * | 2018-06-13 | 2019-12-20 | 淮安市冰青建设工程管理有限公司 | Preparation method of environment-friendly PVC (polyvinyl chloride) foamed plastic material |
| CN110591245A (en) * | 2018-06-13 | 2019-12-20 | 淮安市冰青建设工程管理有限公司 | Environment-friendly PVC foamed plastic material |
| CN111403083A (en) * | 2019-12-13 | 2020-07-10 | 上海谦恒电气有限公司 | Acid-base-resistant wear-resistant environment-friendly cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4037984B2 (en) * | 1999-03-10 | 2008-01-23 | アキレス株式会社 | Standard elastic foam sealing material |
| CN101429315A (en) * | 2007-11-08 | 2009-05-13 | 天津德昊超微新材料有限公司 | PVC/super powder composite material for seal strip |
| CN103073828A (en) * | 2013-02-19 | 2013-05-01 | 合肥美的荣事达电冰箱有限公司 | Door sealing strip, preparation method thereof and refrigeration equipment |
| CN103087446A (en) * | 2013-01-30 | 2013-05-08 | 合肥美的荣事达电冰箱有限公司 | Door seal and preparation method thereof as well as refrigeration equipment |
| CN103524917A (en) * | 2012-07-05 | 2014-01-22 | 中国石油化工股份有限公司 | Polyvinyl chloride sealing strip composition for refrigerator |
-
2016
- 2016-10-27 CN CN201610955375.2A patent/CN106496856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4037984B2 (en) * | 1999-03-10 | 2008-01-23 | アキレス株式会社 | Standard elastic foam sealing material |
| CN101429315A (en) * | 2007-11-08 | 2009-05-13 | 天津德昊超微新材料有限公司 | PVC/super powder composite material for seal strip |
| CN103524917A (en) * | 2012-07-05 | 2014-01-22 | 中国石油化工股份有限公司 | Polyvinyl chloride sealing strip composition for refrigerator |
| CN103087446A (en) * | 2013-01-30 | 2013-05-08 | 合肥美的荣事达电冰箱有限公司 | Door seal and preparation method thereof as well as refrigeration equipment |
| CN103073828A (en) * | 2013-02-19 | 2013-05-01 | 合肥美的荣事达电冰箱有限公司 | Door sealing strip, preparation method thereof and refrigeration equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106916468A (en) * | 2017-03-21 | 2017-07-04 | 合肥华凌股份有限公司 | Fretting map door seal pellet and preparation method thereof and gasket |
| WO2018223507A1 (en) * | 2017-06-09 | 2018-12-13 | 合肥华凌股份有限公司 | Manufacturing method for door seal, door seal assembly and refrigerator |
| CN109931744A (en) * | 2017-12-19 | 2019-06-25 | Aqua株式会社 | Seal strip for refrigerator door |
| CN110591244A (en) * | 2018-06-13 | 2019-12-20 | 淮安市冰青建设工程管理有限公司 | Preparation method of environment-friendly PVC (polyvinyl chloride) foamed plastic material |
| CN110591245A (en) * | 2018-06-13 | 2019-12-20 | 淮安市冰青建设工程管理有限公司 | Environment-friendly PVC foamed plastic material |
| CN111403083A (en) * | 2019-12-13 | 2020-07-10 | 上海谦恒电气有限公司 | Acid-base-resistant wear-resistant environment-friendly cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106496856A (en) | Micro-foaming material and preparation method thereof and refrigeration plant | |
| CN103059468B (en) | Low temperature resistant environment-friendly polyvinyl chloride (PVC) modified material and preparing method thereof | |
| CN103923412B (en) | PVC sealing strip and application thereof | |
| CN103059464B (en) | High tenacity and environment-friendly polyvinyl chloride (PVC) modified materials and preparation method thereof | |
| CN105175962B (en) | A kind of chliorinated polyvinyl chloride is material modified | |
| CN105440505A (en) | PVC (polyvinyl chloride) foam material for sole and preparation method of PVC foam material | |
| CN102952326B (en) | Modified linear polyethylene resin and preparation method thereof | |
| CN107556531A (en) | A kind of novel environment friendly stabilizer and preparation method thereof | |
| CN104312049A (en) | Polyvinyl chloride mixture, door seal, refrigerating device and manufacturing method | |
| CN104109325A (en) | Waterproof and environment-friendly PVC modified material and preparation method thereof | |
| CN102936384B (en) | Polyvinyl chloride (PVC) magnetic-plastic blending door gasket and manufacture method thereof | |
| CN104212034A (en) | Carrier-free plastic master batch and preparation method and application of carrier-free plastic master batch | |
| CN104829887A (en) | Sealing strip material and preparation method thereof | |
| CN102492236A (en) | Novel high-efficiency calcium-zinc stabilizer applied for PVC (polyvinyl chloride) section bars and preparation method thereof | |
| CN106589670A (en) | Hard PVC coloring master batch and preparation method thereof | |
| CN105802080A (en) | Environment-friendly type plastic steel section bar and production method thereof | |
| CN105713315A (en) | Formula for synthesizing novel high-polymer fiber composite materials | |
| CN111393765A (en) | Antibacterial PVC door seal for refrigerator and preparation method thereof | |
| CN107501789A (en) | Fretting map functional agglomerate, gasket and preparation method thereof and refrigeration plant | |
| CN110128761A (en) | A kind of preparation method that environment-friendly and high-performance modified PVC is granulated | |
| CN110305440A (en) | A kind of environment-friendly flame-resistant ABS composite material and preparation method | |
| CN106916468B (en) | Fretting map door seal pellet and preparation method thereof and gasket | |
| CN106609012A (en) | Cold-resistant PVC waterproof material | |
| CN105400051A (en) | Environment-friendly migration-resistant refrigerator door sealing strip | |
| CN102731841A (en) | HD fully biodegradable packaging material and preparation thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |
|
| RJ01 | Rejection of invention patent application after publication |