CN105885299A - Rubber-modified polyvinyl chloride plastic, method for preparing same and application of rubber-modified polyvinyl chloride plastic - Google Patents
Rubber-modified polyvinyl chloride plastic, method for preparing same and application of rubber-modified polyvinyl chloride plastic Download PDFInfo
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- CN105885299A CN105885299A CN201610462532.6A CN201610462532A CN105885299A CN 105885299 A CN105885299 A CN 105885299A CN 201610462532 A CN201610462532 A CN 201610462532A CN 105885299 A CN105885299 A CN 105885299A
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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
- 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
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
-
- 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
- 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
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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)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a rubber-modified polyvinyl chloride plastic, a method for preparing the same and application of the rubber-modified polyvinyl chloride plastic. The rubber-modified polyvinyl chloride plastic comprises, by weight, 80-120 parts of PVC (polyvinyl chloride) resin, 50-80 parts of plasticizers, 3-8 parts of compound stabilizers, 1-5 parts of lubricants, 40-60 parts of light calcium carbonate, 10-30 parts of acrylate rubber and 1-5 parts of chlorinated polyethylene. The rubber-modified polyvinyl chloride plastic, the method and the application have the advantages that the rubber-modified polyvinyl chloride plastic can be applied to sealing strips of ultralow-temperature refrigeration equipment and is excellent in cold resistance, and excellent elastic and sealing effects still can be realized at the temperatures lower than -30 DEG C.
Description
Technical field
The present invention relates to technical field of polymer materials, be specifically related to a kind of rubber medified polyvinly chloride plastics and preparation thereof
Methods and applications, this rubber medified polyvinly chloride moulds the sealing strip being applicable to cryotherapy equipment.
Background technology
Polrvinyl chloride (PVC) be Vinyl Chloride Monomer (vinyl chloride monomer, be called for short VCM) peroxide,
The initiators such as azo-compound, or the polymer being polymerized by mechanism of free-radical polymerization under light, heat effect.Vinyl chloride
Homopolymer and vinyl chloride copolymer system referred to as vinyl chloride resin.PVC has excellent fire-retardant, insulation, the chemical property such as wear-resistant,
It is widely used in the fields such as building materials, light industry, agricultural.In its concrete application aspect, can be with according to the major traits of PVC product
For boardy product and soft goods, wherein boardy product is mainly used in the construction material aspect such as tubing, section bar, and soft goods is mainly applied
At aspects such as thin film, cable, artificial leathers.
PVC material is also applied to the gasket of the refrigeration plants such as refrigerator, modified single by it yet with existing PVC material
The impact of body, thermostability and weatherability are unstable, and the gasket that PVC material makes in the market is less than-20 ° of C's in temperature
In the case of, elastic reduction, leverage sealing effectiveness, sealing effectiveness can be lost in the course of time.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of rubber medified polyvinly chloride plastics,
By polrvinyl chloride is modified, improves the cold tolerance of igelite, expand its range.
Another object of the present invention is to provide the preparation method of a kind of rubber medified polyvinly chloride plastics, pass through the method
Obtain the rubber medified polyvinly chloride plastics that a kind of cold tolerance is good.
Third object of the present invention is that provide a kind of rubber medified polyvinly chloride plastics in preparing gasket answers
With.
For solving the problems referred to above, the technical solution adopted in the present invention is as follows:
A kind of rubber medified polyvinly chloride plastics, it is by dividing the following raw material of calculating to be prepared from weight:
Polyvinyl chloride resin 80-120 part,
Plasticizer 50-80 part,
Complex stabilizer 3-8 part,
Lubricant 1-5 part,
Precipitated calcium carbonate 40-60 part,
Acrylate rubber 10-30 part,
Chlorinated polyethylene 1-5 part.
As preferred scheme, rubber medified polyvinly chloride plastics of the present invention are divided below calculating by with weight
Raw material is prepared from:
Polyvinyl chloride resin 100 parts,
Plasticizer 60 parts,
Complex stabilizer 6 parts,
Lubricant 3 parts,
Precipitated calcium carbonate 50 parts,
Acrylate rubber 25 parts,
Chlorinated polyethylene 3 parts.
As further scheme, plasticizer of the present invention is phthalate, fatty acid ester, phosphate ester
One in the many esters of gallic acid of class, benzene, amide-type；Described complex stabilizer is Ca Zn composite thing.
As further scheme, plasticizer of the present invention is that dioctyl phthalate, phthalic acid two are different
One in monooctyl ester, dibutyl phthalate, dimethyl phthalate, diethyl phthalate.
A kind of preparation method of rubber medified polyvinly chloride plastics, this preparation method comprises the following steps:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastics.
As further scheme, in preparation method of the present invention, the mixing speed of high-speed stirred be 200-300 turn/
Min, the speed of stirring at low speed is that 80-100 turns/min.
As further scheme, in preparation method of the present invention, during step 3) extruding pelletization, twin screw squeezes
The temperature going out machine arranges respectively: 145 DEG C of a district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head
162℃。
A kind of gasket, this gasket is to use rubber medified polyvinly chloride plastic processing of the present invention to form.
A kind of processing method of gasket, this processing method comprises the following steps:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastic grain；
4) being sent to by the rubber medified polyvinly chloride plastic grain obtained by step 3) in single screw rod door seal extruder, adhesive tape is led to
Load cooling and shaping in stock mould after crossing extrusion neck ring mold extrusion, then synchronize the popular size rear cutout migrating to and setting with traction machine
Disconnected；Obtain that there is the adhesive tape being sized；
5) there is the adhesive tape being sized it is transferred in door seal bonding machine surfacing adhesive tape after the baking of 6-8 second by above-mentioned, obtain
Gasket.
As further scheme, in above-mentioned processing method, the parameter of single screw rod door seal extruder is set as: a district 140
DEG C, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C, die head 145 DEG C；The temperature of door seal bonding machine is set to
250-350℃。
Compared to existing technology, the beneficial effects of the present invention is:
The raw material of rubber medified polyvinly chloride plastics the most of the present invention adds acrylate rubber and other components, logical
Cross and control the rubber medified polyvinly chloride plastics that ratio obtains between component there is good cold tolerance, can-30 DEG C with
Lower holding favorable elasticity；
Rubber medified polyvinly chloride plastics the most of the present invention are for being processed into the gasket of freezing equipment, below-30 DEG C
Good sealing effectiveness can be kept for a long time, extend the service life of gasket；
The preparation method of rubber medified polyvinly chloride plastics the most of the present invention by control double screw extruder temperature,
Realize the fusion of a component in raw material, it is achieved the modification to pvc material, expand the application of pvc material.
Below in conjunction with detailed description of the invention, the present invention is described in further detail.
Detailed description of the invention
Rubber medified polyvinly chloride plastics of the present invention, its be by divide with weight calculating following raw material prepare and
Become:
Polyvinyl chloride resin 80-120 part,
Plasticizer 50-80 part,
Complex stabilizer 3-8 part,
Lubricant 1-5 part,
Precipitated calcium carbonate 40-60 part,
Acrylate rubber 10-30 part,
Chlorinated polyethylene 1-5 part.
As preferred scheme, rubber medified polyvinly chloride plastics of the present invention are divided below calculating by with weight
Raw material is prepared from:
Polyvinyl chloride resin 100 parts,
Plasticizer 60 parts,
Complex stabilizer 6 parts,
Lubricant 3 parts,
Precipitated calcium carbonate 50 parts,
Acrylate rubber 25 parts,
Chlorinated polyethylene 3 parts.
As further scheme, plasticizer of the present invention is but is not limited to phthalate, fatty acid
One in the many esters of gallic acid of esters, phosphoric acid ester, benzene, amide-type；As preferably, plasticizer of the present invention be but not
It is limited to dioctyl phthalate, diisooctyl phthalate, dibutyl phthalate, dimethyl phthalate, neighbour
One in diethyl phthalate.
The heat stabilizer that the polyvinyl chloride resin course of processing is selected, first has to consider heat stabilizer characteristic and the use of outer PVC product
On the way, it is also contemplated that the mutual cooperative effect of heat stabilizer used in addition.In the present invention, except considering complex stabilizer and PVC
Between effect, in addition it is also necessary to consider the effect between complex stabilizer and other components.The present invention uses complex stabilizer to be calcium
Zinc complexes or zinc stearate can improve static state and the dynamic thermal stability of PVC, and wherein effect is preferably Ca Zn composite thing.
In order to suppress the removing of PVC chain HCl, and then stop polyenoid chain to increase, improve the stability of PVC material, institute of the present invention further
In the Ca Zn composite thing used, the mass ratio of two kinds of elements of calcium zinc is 4.5:1.5.
In the present invention, use acrylate rubber that polrvinyl chloride is modified；Owing to acrylate rubber has with PCV
Have a good compatibility, biphase between bonding force preferable, external force is easily diffused to surrounding rather than concentrates on a bit；
Acrylate rubber can improve the low temperature impact strength of PVC, reduces the brittle temperature of polrvinyl chloride.In the research of the present invention
Find to decrease along with the brittle temperature increasing polrvinyl chloride of acrylate rubber consumption, but the use of acrylic acid matter rubber
After amount increases to certain value, it is further added by its consumption and the impact strength of polrvinyl chloride can be caused to reduce, therefore consider, the present invention
The consumption of middle acrylic acid matter rubber controls to be 10-30 part, preferably 25 parts.
A kind of preparation method of rubber medified polyvinly chloride plastics, this preparation method comprises the following steps:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastics.
As further scheme, in preparation method of the present invention, the mixing speed of high-speed stirred be 200-300 turn/
Min, the speed of stirring at low speed is that 80-100 turns/min.
As further scheme, in preparation method of the present invention, during step 3) extruding pelletization, twin screw squeezes
The temperature going out machine arranges respectively: 145 DEG C of a district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head
162℃。
A kind of gasket, this gasket is to use rubber medified polyvinly chloride plastic processing of the present invention to form.
A kind of processing method of gasket, this processing method comprises the following steps:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastic grain；
4) being sent to by the rubber medified polyvinly chloride plastic grain obtained by step 3) in single screw rod door seal extruder, adhesive tape is led to
Load cooling and shaping in stock mould after crossing extrusion neck ring mold extrusion, then synchronize the popular size rear cutout migrating to and setting with traction machine
Disconnected；Obtain that there is the adhesive tape being sized；
5) there is the adhesive tape being sized it is transferred in door seal bonding machine surfacing adhesive tape after the baking of 6-8 second by above-mentioned, obtain
Gasket.
As further scheme, in above-mentioned processing method, the parameter of single screw rod door seal extruder is set as: a district 140
DEG C, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C, die head 145 DEG C；The temperature of door seal bonding machine is set to
250-300℃。
The following is specific embodiment of the present invention, in the following embodiments, the raw material that used, equipment etc. all can pass through
Buying pattern obtains.
Embodiment 1
A kind of rubber medified polyvinly chloride plastics, it is by dividing the following raw material of calculating to be prepared from weight:
Polyvinyl chloride resin 80 parts,
Plasticizer 5 parts,
Complex stabilizer 3 parts,
Lubricant 1 part,
Precipitated calcium carbonate 40 parts,
Acrylate rubber 10 parts,
Chlorinated polyethylene 1 part；
Its preparation method is as follows:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature stirred to blender with the speed of 200 turns/min adds plasticizer when rising to 65-75 DEG C, continues
Continuous stirring is also warming up to 100 DEG C, obtains compound；
2) compound that step 1) obtains is put into cold mixer stir to 35 DEG C with the speed of 80 turns/min, standby；
3) compound after step 2 processes is transferred in double screw extruder, and the temperature of double screw extruder arranges respectively: one
145 DEG C of district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head 162 DEG C；Extruding pelletization, then incites somebody to action
The granulate cooling arrived, i.e. obtains rubber medified polyvinly chloride plastic grain.
Application Example 1
Rubber medified polyvinly chloride plastic processing obtained by embodiment 1 is become gasket, and concrete processing method is as follows:
A) the rubber medified polyvinly chloride plastic grain obtained by embodiment 1 is sent in single screw rod door seal extruder, single spiral shell
The parameter of bar door seal extruder is set as: 140 DEG C of a district, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C,
Die head 145 DEG C；Adhesive tape loads cooling and shaping in stock mould by extrusion neck ring mold after being extruded, then synchronize popular migration with traction machine
Cut off to the size set；Obtain that there is the adhesive tape being sized；
B) having the adhesive tape being sized be transferred to above-mentioned in door seal bonding machine, the temperature of door seal bonding machine is set to 250 DEG C,
After the baking of 8 seconds, surfacing adhesive tape, obtains gasket.
Embodiment 2
A kind of rubber medified polyvinly chloride plastics are by dividing the following raw material of calculating to be prepared from weight:
Polyvinyl chloride resin 100 parts,
Plasticizer 60 parts,
Complex stabilizer 6 parts,
Lubricant 3 parts,
Precipitated calcium carbonate 50 parts,
Acrylate rubber 25 parts,
Chlorinated polyethylene 3 parts；Its preparation method is as follows:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature stirred to blender with the speed of 250 turns/min adds plasticizer when rising to 65-75 DEG C, continues
Continuous stirring is also warming up to 105 DEG C, obtains compound；
2) compound that step 1) obtains is put into cold mixer stir to 40 DEG C with the speed of 90 turns/min, standby；
3) compound after step 2 processes is transferred in double screw extruder, and the temperature of double screw extruder arranges respectively: one
145 DEG C of district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head 162 DEG C；Extruding pelletization, then incites somebody to action
The granulate cooling arrived, i.e. obtains rubber medified polyvinly chloride plastic grain.
Application Example 2
Rubber medified polyvinly chloride plastic processing obtained by embodiment 2 is become gasket, and concrete processing method is as follows:
A) the rubber medified polyvinly chloride plastic grain obtained by embodiment 2 is sent in single screw rod door seal extruder, single spiral shell
The parameter of bar door seal extruder is set as: 140 DEG C of a district, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C,
Die head 145 DEG C；Adhesive tape loads cooling and shaping in stock mould by extrusion neck ring mold after being extruded, then synchronize popular migration with traction machine
Cut off to the size set；Obtain that there is the adhesive tape being sized；
B) having the adhesive tape being sized be transferred to above-mentioned in door seal bonding machine, the temperature of door seal bonding machine is set to 280 DEG C,
After the baking of 7 seconds, surfacing adhesive tape, obtains gasket.
Embodiment 3
A kind of rubber medified polyvinly chloride plastics, it is by dividing the following raw material of calculating to be prepared from weight:
Polyvinyl chloride resin 120 parts,
Plasticizer 80 parts,
Complex stabilizer 8 parts,
Lubricant 5 parts,
Precipitated calcium carbonate 60 parts,
Acrylate rubber 30 parts,
Chlorinated polyethylene 5 parts；
Its preparation method is as follows:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature stirred to blender with the speed of 300 turns/min adds plasticizer when rising to 65-75 DEG C, continues
Continuous stirring is also warming up to 110 DEG C, obtains compound；
2) compound that step 1) obtains is put into cold mixer stir to 45 DEG C with the speed of 100 turns/min, standby；
3) compound after step 2 processes is transferred in double screw extruder, and the temperature of double screw extruder arranges respectively: one
145 DEG C of district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head 162 DEG C；Extruding pelletization, then incites somebody to action
The granulate cooling arrived, i.e. obtains rubber medified polyvinly chloride plastics.
Application Example 3
Rubber medified polyvinly chloride plastic processing obtained by embodiment 3 is become gasket, and concrete processing method is as follows:
A) the rubber medified polyvinly chloride plastic grain obtained by embodiment 3 is sent in single screw rod door seal extruder, single spiral shell
The parameter of bar door seal extruder is set as: 140 DEG C of a district, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C,
Die head 145 DEG C；Adhesive tape loads cooling and shaping in stock mould by extrusion neck ring mold after being extruded, then synchronize popular migration with traction machine
Cut off to the size set；Obtain that there is the adhesive tape being sized；
5) having the adhesive tape being sized be transferred to above-mentioned in door seal bonding machine, the temperature of door seal bonding machine is set to 300 DEG C,
After the baking of 6 seconds, surfacing adhesive tape, obtains gasket.
Performance detects
1. the rubber medified polyvinly chloride plastics obtained by pair embodiment 1-3 carry out performance test, and wherein mechanical property (includes
Elongation at break) to test according to standard pattern and the method for GB/T528-1992, cold tolerance (includes impact strength and crisp
Degree warm in nature) make batten according to the standard of GB/T2843-2008, and test according to its method；Test result sees table 1.
Table 1: the performance test results
Shown by the data of table 1, the feelings that the rubber medified polyvinly chloride plastics of the present invention are substantially unaffected in mechanical performance
Under condition, its brittleness temperature is less than less than-30 DEG C, has good cold tolerance.
2. the gasket obtained by pair Application Example 1-3 is applied to the magnetic door seal of freezing equipment, and carries out performance inspection
Testing, inspection project includes outward appearance, hardness, percentage elongation, hot strength and leg pulling force, and testing result sees table 2.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change of any unsubstantiality that those skilled in the art is done on the basis of the present invention and replacement belong to institute of the present invention
Claimed scope.
Claims (10)
1. rubber medified polyvinly chloride plastics, it is characterised in that its be by divide with weight calculating following raw material prepare and
Become:
Polyvinyl chloride resin 80-120 part,
Plasticizer 50-80 part,
Complex stabilizer 3-8 part,
Lubricant 1-5 part,
Precipitated calcium carbonate 40-60 part,
Acrylate rubber 10-30 part,
Chlorinated polyethylene 1-5 part.
Rubber medified polyvinly chloride plastics the most according to claim 1, it is characterised in that it is divided calculating by with weight
Following raw material is prepared from:
Polyvinyl chloride resin 100 parts,
Plasticizer 60 parts,
Complex stabilizer 6 parts,
Lubricant 3 parts,
Precipitated calcium carbonate 50 parts,
Acrylate rubber 25 parts,
Chlorinated polyethylene 3 parts.
Rubber medified polyvinly chloride plastics the most according to claim 1 and 2, it is characterised in that described plasticizer is adjacent benzene
One in the many esters of gallic acid of diformic ester, fatty acid ester, phosphoric acid ester, benzene, amide-type；Described complex stabilizer is calcium zinc
Complex.
Rubber medified polyvinly chloride plastics the most according to claim 3, it is characterised in that described plasticizer is O-phthalic
Dioctyl phthalate, diisooctyl phthalate, dibutyl phthalate, dimethyl phthalate, phthalic acid diethyl
One in ester.
5. the preparation method of rubber medified polyvinly chloride plastics as claimed in claim 1, it is characterised in that this preparation side
Method comprises the following steps:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastics.
Preparation method the most according to claim 5, it is characterised in that wherein the mixing speed of high-speed stirred is 200-300
Turning/min, the speed of stirring at low speed is that 80-100 turns/min.
Preparation method the most according to claim 5, it is characterised in that double screw extruder during step 3) extruding pelletization
Temperature arrange respectively: 145 DEG C of a district, two 150 DEG C of districts, three 155 DEG C of districts, four 160 DEG C of districts, merging core 168 DEG C, die head 162
℃。
8. a gasket, it is characterised in that this gasket is to use the rubber medified polyvinly chloride described in claim 1 or 2
Plastic processing forms.
9. the processing method of a gasket as claimed in claim 8, it is characterised in that this processing method includes following step
Rapid:
1) in proportion polyvinyl chloride resin, complex stabilizer, lubricant, precipitated calcium carbonate, acrylate rubber, chlorinated polyethylene are added
Entering in big blender, the temperature of high-speed stirred to blender rises to add plasticizer when 65-75 DEG C, continues stirring and is warming up to
100-110 DEG C, obtain compound；
2) compound that step 1) obtains is put into cold mixer stirring at low speed to 35-45 DEG C, standby；
3) compound after step 2 processes is transferred in double screw extruder, extruding pelletization, the granulate cooling that then will obtain,
I.e. obtain rubber medified polyvinly chloride plastic grain；
4) being sent to by the rubber medified polyvinly chloride plastic grain obtained by step 3) in single screw rod door seal extruder, adhesive tape is led to
Load cooling and shaping in stock mould after crossing extrusion neck ring mold extrusion, then synchronize the popular size rear cutout migrating to and setting with traction machine
Disconnected；Obtain that there is the adhesive tape being sized；
5) there is the adhesive tape being sized it is transferred in door seal bonding machine surfacing adhesive tape after the baking of 6-8 second by above-mentioned, obtain
Gasket.
Processing method the most according to claim 9, it is characterised in that the parameter of single screw rod door seal extruder is set as: one
140 DEG C of district, two 140 DEG C of districts, three 140 DEG C of districts, four 140 DEG C of districts, merging core 150 DEG C, die head 145 DEG C；The temperature of door seal bonding machine
It is set to 250-350 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610462532.6A CN105885299A (en) | 2016-06-23 | 2016-06-23 | Rubber-modified polyvinyl chloride plastic, method for preparing same and application of rubber-modified polyvinyl chloride plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106589672A (en) * | 2016-11-18 | 2017-04-26 | 嘉善永金金属制品有限公司 | High strength wire covering material |
| CN107418105A (en) * | 2017-09-20 | 2017-12-01 | 广东顺德江顺磁材有限公司 | A kind of PVC gaskets with resistance to shift function and preparation method thereof |
| CN108162624A (en) * | 2017-12-26 | 2018-06-15 | 浙江王斌装饰材料有限公司 | A kind of PVC lines water transfer prepares processing technology |
| CN113321880A (en) * | 2021-05-27 | 2021-08-31 | 福清市能力达鞋业有限公司 | Sole material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106479045A (en) * | 2016-09-29 | 2017-03-08 | 青岛海之源智能技术有限公司 | A kind of expelling parasite polypropylene composite materials resin and preparation method thereof |
| CN106566126A (en) * | 2016-10-31 | 2017-04-19 | 无锡市永兴金属软管有限公司 | Low-temperature-resistant PVC corrugated pipe |
| CN106589672A (en) * | 2016-11-18 | 2017-04-26 | 嘉善永金金属制品有限公司 | High strength wire covering material |
| CN107418105A (en) * | 2017-09-20 | 2017-12-01 | 广东顺德江顺磁材有限公司 | A kind of PVC gaskets with resistance to shift function and preparation method thereof |
| CN108162624A (en) * | 2017-12-26 | 2018-06-15 | 浙江王斌装饰材料有限公司 | A kind of PVC lines water transfer prepares processing technology |
| CN113321880A (en) * | 2021-05-27 | 2021-08-31 | 福清市能力达鞋业有限公司 | Sole material and preparation method thereof |
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