CN110256778A - Super transparent, low voc material of a kind of environmental protection and preparation method thereof - Google Patents
Super transparent, low voc material of a kind of environmental protection and preparation method thereof Download PDFInfo
- Publication number
- CN110256778A CN110256778A CN201910533520.1A CN201910533520A CN110256778A CN 110256778 A CN110256778 A CN 110256778A CN 201910533520 A CN201910533520 A CN 201910533520A CN 110256778 A CN110256778 A CN 110256778A
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- CN
- China
- Prior art keywords
- feed particles
- environmental protection
- preparation
- bitruder
- pvc feed
- 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.)
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Classifications
-
- 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
- B29C48/27—Cleaning; Purging; Avoiding contamination
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- 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
- 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
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- 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
Abstract
The invention discloses super transparent, low voc material of a kind of environmental protection and preparation method thereof; the raw material for preparing of super transparent, the low voc material of the environmental protection has: granular activated carbon, screw cleaning agent, PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and filler, and equipment needed for super transparent, the low voc material preparation of the environmental protection has: Bitruder, screening machine, hot air circulation drying oven, nitrogen proof cabinet, vacuum materal drier and V-arrangement pellet blender.Super transparent, low voc material of the environmental protection and preparation method thereof, using new feedstock processing and preparation method, so that contained humidity and impurity are less in raw material, product will not excessively generate the excessive situation of bubble because of raw material moisture, also pass through the addition of voc inhibitor, absorb to voc, reduce product voc content, and by the way that, to the control of temperature of each section, the flavescence so that PVC feed particles will not be heated for a long time ensure that the transparency of product in extrusion process.
Description
Technical field
The present invention relates to plastic rubber material production technical field, specially a kind of super transparent, low voc of environmental protection expects and its preparation side
Method.
Background technique
Plastic rubber material is exactly the raw material of plastic cement products production, mainly using high molecular synthetic resin as raw material, is being produced
Multiple auxiliary materials and additive are added in engineering, these auxiliary materials and additive are penetrated into high molecular synthetic resin, formd specific
Temperature has plasticity and mobility under pressure, can be molded as certain shapes, and keeps shape invariance under certain condition
Material, used high molecular synthetic resin raw material are mostly PE, PP, PVC and ABS etc., and the plastic rubber material produced be used to manufacture
Plastic cement, and plastic cement is very widely used is household electrical appliances, automobile, mobile phone, PC, medical instrument, portion indispensable in electric lighting
Part, with the rapid development of plastic cement industry and the continuous improvement of plastic cement performance, plastic cement products have obtained more being widely applied, modeling
The different field of glue product substitutes traditional metal parts, and a reasonable plastic parts of design tends to substitute multiple biographies
System metal parts, so the new type plastic of research and development and production with good characteristic has good development prospect.
Although new type plastic material is still deposited in continuous research and development and production, the preparation processing method of existing plastic rubber material
Some drawbacks, such as:
Containing moisture in raw material, causes raw material rotten after heating, and in injection molding, charging is no using drying hopper, and
And in drying process, the air of input is not filtered, is dehumidified, and causes raw material contaminated, the plastic rubber material produced there are speckle,
Stomata, whiting, mist be dizzy, stain, discoloration, dullness and the defects such as transparency is low；
Contain a certain amount of volatile organic compounds in traditional plasthetics mostly, volatile organic compounds is referred to as
Voc, since plasthetics is widely used to a variety of family products, these plasthetics are more a large sum of in relatively closed room
The storage of fan, voc constantly volatilize, when the voc in room reaches a certain concentration, in the short time people can feel headache, nausea,
Vomiting, out of strength etc. will appear twitch, stupor, and can hurt the liver, kidney, brain and nervous system of people when serious, cause
The serious consequences such as failure of memory.
So needing to design a kind of environmental protection aiming at the problem that still having in above-mentioned plastic rubber material production process super transparent, low
Voc material and preparation method thereof.
Summary of the invention
The purpose of the present invention is to provide super transparent, low voc material of a kind of environmental protection and preparation method thereof, to solve above-mentioned background
It is proposed that there are stomata, dullness and the defects such as transparency is low, not low enough the problems of voc content in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of super transparent, the low voc material of environmental protection and its preparation
The raw material for preparing of method, super transparent, the low voc material of the environmental protection has: granular activated carbon, screw cleaning agent, PVC feed particles, voc suppression
Preparation, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and filler, needed for super transparent, the low voc material preparation of the environmental protection
Equipment have: Bitruder, screening machine, hot air circulation drying oven, nitrogen proof cabinet, vacuum materal drier and V-arrangement particle are mixed
Conjunction machine.
Preferably, the environmental protection it is super it is transparent, low voc preparation method for material is as follows:
(1), feedstock processing:
1. PVC feed particles and granular activated carbon are taken, and the mass ratio of PVC feed particles and granular activated carbon is 5:2,
Grain active carbon diameter be 2mm-3mm, be added V-arrangement pellet blender in mix 1-2h, enable granular activated carbon sufficiently with PVC raw material
Grain mixing, absorbs dust, fine particle impurity and the moisture in PVC feed particles raw material, takes out hybrid particles；
2. the PVC feed particles of taking-up and granular activated carbon hybrid particles are added in screening machine and carry out screening operation, sieve
Gradation number is 3-5 times, enables screening machine that will be adsorbed with the granular activated carbon screening discharge of dust, fine particle impurity and moisture,
And will contain in PVC feed particles be relatively large in diameter impurity particle screening discharge, due to general PVC feed particles diameter all
Greater than 5mm, so screening machine can effectively separate PVC feed particles with granular activated carbon；
The dry 2-3h of 85 DEG C of hot air circulations is carried out 3. the PVC feed particles after screening are placed in hot air circulation drying oven,
Taking-up is placed in nitrogen proof cabinet and saves.
(2), Bitruder cleaning before producing:
Taking the PVC feed particles saved in screw cleaning agent 50g and 2kg nitrogen proof cabinet to mix composition cleaning material will mixing
Good cleaning material falls in the hopper of Bitruder, and fanning the air colloidal sol about half a minute, glue is primary, and cleaning is expected after shooting away, clear with cloth
Hopper is managed, the sizing material of some injection molding machines is then added, accumulates in the cleaning material on screw rod clearly excessively, repeatedly by the cleaning material of discharge
Put into hopper 2-3 time, sufficiently cleaned, in scale removal process, the extruder temperature of Bitruder control 200 DEG C with
Interior, the hopper of Bitruder feed end installation is drying hopper.
(3), preparation method:
By PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and filler according to matter
Amount is than being that 100:5:3:0.6:2:0.25:10 is mixed using V-arrangement pellet blender, and twin-screw extrusion is added by drying hopper
In machine；
And voc inhibitor is the mixture of 40% fully sulfurized silicon rubber powder and 60% Cellulose nanocrystal body,
Rubber wear-resisting agent is double-(3- triethoxysilane propyl)-tetrasulfide,
Acid absorbent is calcium stearate,
Lubricant is polyalcohol wax,
Antioxidant is phosphoric acid ester antioxidant,
Filler is calcined kaolin；
The velocity of rotation of Bitruder screw rod is maintained at 250-300rpm；
And temperature is maintained at 85 DEG C -100 DEG C at drying hopper in Bitruder；
Due to PVC feed particles poor heat resistance itself, heated for a long time can degrade is precipitated hydrogen chloride raw material is made to turn yellow, in order to
The transparency for guaranteeing product, front-end temperature is maintained at 160 DEG C -170 DEG C in Bitruder, middle section temperature be maintained at 160 DEG C -
165 DEG C, back segment temperature is maintained at 140 DEG C -150 DEG C,
Super transparent, the low voc material of environmental protection is obtained after Bitruder extrusion die extrusion.
Compared with prior art, the beneficial effects of the present invention are: super transparent, low voc material of the environmental protection and preparation method thereof, is adopted
With new feedstock processing and preparation method, so that contained humidity and dust and granule foreign are less in raw material, twin-screw is squeezed
Molding machine inner screw is more clean, in extrusion process, the excessive situation of bubble, stomata will not be excessively generated because of raw material moisture, no
Product quality can be influenced because impurity is more, also pass through the addition of voc inhibitor, voc is absorbed, final products are reduced
Voc content, and by extrusion process to the control of temperature of each section so that PVC feed particles will not be become by heat for a long time
Huang ensure that the transparency of product.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution:
Super transparent, low voc material of a kind of environmental protection and preparation method thereof, the raw material for preparing that super transparent, the low voc of the environmental protection expects has:
Granular activated carbon, screw cleaning agent, PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and
Filler, equipment needed for super transparent, the low voc material preparation of the environmental protection have: Bitruder, screening machine, hot air circulation are dry
Case, nitrogen proof cabinet, vacuum materal drier and V-arrangement pellet blender.
Super transparent, the low voc material of a kind of environmental protection and preparation method thereof is as follows:
(1), feedstock processing:
1. PVC feed particles and granular activated carbon are taken, and the mass ratio of PVC feed particles and granular activated carbon is 5:2,
Grain active carbon diameter be 2mm-3mm, be added V-arrangement pellet blender in mix 1-2h, enable granular activated carbon sufficiently with PVC raw material
Grain mixing, absorbs dust, fine particle impurity and the moisture in PVC feed particles raw material, takes out hybrid particles；
2. the PVC feed particles of taking-up and granular activated carbon hybrid particles are added in screening machine and carry out screening operation, sieve
Gradation number is 3-5 times, enables screening machine that will be adsorbed with the granular activated carbon screening discharge of dust, fine particle impurity and moisture,
And will contain in PVC feed particles be relatively large in diameter impurity particle screening discharge, due to general PVC feed particles diameter all
Greater than 5mm, so screening machine can effectively separate PVC feed particles with granular activated carbon；
The dry 2-3h of 85 DEG C of hot air circulations is carried out 3. the PVC feed particles after screening are placed in hot air circulation drying oven,
Taking-up is placed in nitrogen proof cabinet and saves.
(2), Bitruder cleaning before producing:
Taking the PVC feed particles saved in screw cleaning agent 50g and 2kg nitrogen proof cabinet to mix composition cleaning material will mixing
Good cleaning material falls in the hopper of Bitruder, and fanning the air colloidal sol about half a minute, glue is primary, and cleaning is expected after shooting away, clear with cloth
Hopper is managed, the sizing material of some injection molding machines is then added, accumulates in the cleaning material on screw rod clearly excessively, repeatedly by the cleaning material of discharge
Put into hopper 2-3 time, sufficiently cleaned, in scale removal process, the extruder temperature of Bitruder control 200 DEG C with
Interior, the hopper of Bitruder feed end installation is drying hopper.
(3), preparation method:
By PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and filler according to matter
Amount is than being that 100:5:3:0.6:2:0.25:10 is mixed using V-arrangement pellet blender, and twin-screw extrusion is added by drying hopper
In machine；
And voc inhibitor is the mixture of 40% fully sulfurized silicon rubber powder and 60% Cellulose nanocrystal body,
Rubber wear-resisting agent is double-(3- triethoxysilane propyl)-tetrasulfide,
Acid absorbent is calcium stearate,
Lubricant is polyalcohol wax,
Antioxidant is phosphoric acid ester antioxidant,
Filler is calcined kaolin；
The velocity of rotation of Bitruder screw rod is maintained at 250-300rpm；
And temperature is maintained at 85 DEG C -100 DEG C at drying hopper in Bitruder；
Due to the poor heat resistance of PVC feed particles itself, heated for a long time can degrade is precipitated hydrogen chloride raw material is made to turn yellow, and is
Guarantee the transparency of product, front-end temperature is maintained at 160 DEG C -170 DEG C in Bitruder, and middle section temperature is maintained at 160
DEG C -165 DEG C, back segment temperature is maintained at 140 DEG C -150 DEG C,
Super transparent, the low voc material of environmental protection is obtained after Bitruder extrusion die extrusion.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (2)
1. a kind of super transparent, low voc material of environmental protection and preparation method thereof, it is characterised in that: super transparent, the low voc material of the environmental protection
The raw material for preparing have: granular activated carbon, screw cleaning agent, PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, profit
Lubrication prescription, antioxidant and filler, equipment needed for super transparent, the low voc material preparation of the environmental protection have: Bitruder, sieve
Extension set, hot air circulation drying oven, nitrogen proof cabinet, vacuum materal drier and V-arrangement pellet blender.
2. super transparent, low voc material of a kind of environmental protection according to claim 1 and preparation method thereof, it is characterised in that: described to be somebody's turn to do
Environmental protection it is super it is transparent, low voc preparation method for material is as follows:
(1), feedstock processing:
1. taking PVC feed particles and granular activated carbon, and the mass ratio of PVC feed particles and granular activated carbon is 5:2, particle is living
Property charcoal diameter be 2mm-3mm, be added in V-arrangement pellet blender and mix 1-2h, enable granular activated carbon sufficiently mixed with PVC feed particles
It closes, dust, fine particle impurity and the moisture in PVC feed particles raw material is absorbed, take out hybrid particles；
2. the PVC feed particles of taking-up and granular activated carbon hybrid particles are added in screening machine and carry out screening operation, screening time
Number is 3-5 times, enables screening machine that will be adsorbed with the granular activated carbon screening discharge of dust, fine particle impurity and moisture, and will
The impurity particle screening discharge being relatively large in diameter contained in PVC feed particles, since the diameter of general PVC feed particles is both greater than
5mm, so screening machine can effectively separate PVC feed particles with granular activated carbon；
The dry 2-3h of 85 DEG C of hot air circulations is carried out 3. the PVC feed particles after screening are placed in hot air circulation drying oven, is taken out
It is placed in nitrogen proof cabinet and saves.
(2), Bitruder cleaning before producing:
Taking the PVC feed particles that save in screw cleaning agent 50g and 2kg nitrogen proof cabinet to mix composition cleaning material will mix
Cleaning material falls in the hopper of Bitruder, and fanning the air colloidal sol about half a minute, glue is primary, and cleaning is expected after shooting away, and is cleared up and is expected with cloth
Bucket, is then added the sizing material of some injection molding machines, accumulates in the cleaning material on screw rod clearly excessively, the cleaning material of discharge is put into repeatedly
It 2-3 times in hopper, is sufficiently cleaned, in scale removal process, the extruder temperature of Bitruder is controlled within 200 DEG C, double
The hopper of multiple screw extruder feed end installation is drying hopper.
(3), preparation method:
By PVC feed particles, voc inhibitor, rubber wear-resisting agent, acid absorbent, lubricant, antioxidant and filler according to mass ratio
It is mixed for 100:5:3:0.6:2:0.25:10 using V-arrangement pellet blender, and Bitruder is added by drying hopper
In；
And voc inhibitor is the mixture of 40% fully sulfurized silicon rubber powder and 60% Cellulose nanocrystal body,
Rubber wear-resisting agent is double-(3- triethoxysilane propyl)-tetrasulfide,
Acid absorbent is calcium stearate,
Lubricant is polyalcohol wax,
Antioxidant is phosphoric acid ester antioxidant,
Filler is calcined kaolin；
The velocity of rotation of Bitruder screw rod is maintained at 250-300rpm；
And temperature is maintained at 85 DEG C -100 DEG C at drying hopper in Bitruder；
Due to PVC feed particles poor heat resistance itself, heated for a long time can degrade is precipitated hydrogen chloride raw material is made to turn yellow, in order to guarantee
The transparency of product, front-end temperature is maintained at 160 DEG C -170 DEG C in Bitruder, and middle section temperature is maintained at 160 DEG C -165
DEG C, back segment temperature is maintained at 140 DEG C -150 DEG C,
Super transparent, the low voc material of environmental protection is obtained after Bitruder extrusion die extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533520.1A CN110256778A (en) | 2019-06-19 | 2019-06-19 | Super transparent, low voc material of a kind of environmental protection and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533520.1A CN110256778A (en) | 2019-06-19 | 2019-06-19 | Super transparent, low voc material of a kind of environmental protection and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN110256778A true CN110256778A (en) | 2019-09-20 |
Family
ID=67919537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910533520.1A Pending CN110256778A (en) | 2019-06-19 | 2019-06-19 | Super transparent, low voc material of a kind of environmental protection and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110903752A (en) * | 2019-12-15 | 2020-03-24 | 湛江市汉成科技有限公司 | Environment-friendly ultra-transparent low-vco material and preparation method thereof |
| CN114773749A (en) * | 2022-05-20 | 2022-07-22 | 东莞市明凯塑胶科技有限公司 | Low-voc (volatile organic compounds) polyvinyl chloride plastic material and preparation method thereof |
| CN114851497A (en) * | 2021-01-20 | 2022-08-05 | 深圳市乙方吸塑包装有限公司 | One-step forming processing method for plastic transparent outer package production |
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| CN105524349A (en) * | 2014-10-21 | 2016-04-27 | 中国石油化工股份有限公司 | Low VOC polypropylene resin composition and preparation method thereof |
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| CN104558912A (en) * | 2013-10-22 | 2015-04-29 | 宁夏金黄河塑业有限责任公司 | Tensile transparent PVC (Polyvinyl Chloride) cable sheath |
| CN105524349A (en) * | 2014-10-21 | 2016-04-27 | 中国石油化工股份有限公司 | Low VOC polypropylene resin composition and preparation method thereof |
| CN109337241A (en) * | 2018-09-19 | 2019-02-15 | 广东光塑科技股份有限公司 | A kind of wear-resistant tow chain PVC modified material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110903752A (en) * | 2019-12-15 | 2020-03-24 | 湛江市汉成科技有限公司 | Environment-friendly ultra-transparent low-vco material and preparation method thereof |
| CN114851497A (en) * | 2021-01-20 | 2022-08-05 | 深圳市乙方吸塑包装有限公司 | One-step forming processing method for plastic transparent outer package production |
| CN114773749A (en) * | 2022-05-20 | 2022-07-22 | 东莞市明凯塑胶科技有限公司 | Low-voc (volatile organic compounds) polyvinyl chloride plastic material and preparation method thereof |
| CN114773749B (en) * | 2022-05-20 | 2023-05-23 | 东莞市明凯塑胶科技有限公司 | Low-voc polyvinyl chloride plastic material and preparation method thereof |
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Application publication date: 20190920 |