CN108329622A - A kind of lead-free PVC plastics and preparation method thereof - Google Patents
A kind of lead-free PVC plastics and preparation method thereof Download PDFInfo
- Publication number
- CN108329622A CN108329622A CN201810227199.XA CN201810227199A CN108329622A CN 108329622 A CN108329622 A CN 108329622A CN 201810227199 A CN201810227199 A CN 201810227199A CN 108329622 A CN108329622 A CN 108329622A
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- Prior art keywords
- lead
- pvc plastics
- free pvc
- parts
- free
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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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- 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
Abstract
The invention discloses a kind of lead-free PVC plastics and preparation method thereof.The parts by weight of raw material components of the lead-free PVC plastics of the present invention are：80 100 parts of PVC rubber, 20 30 parts of plasticizer, 5 10 parts of nanometer silver paste, 36 parts of crosslinking agent, 13 parts of paraffin, 15 parts of 2 hydroxyl, 4 oxy-octyl benzophenone.The preparation method of the PVC plastic is：By polyvinyl chloride resin, 2 hydroxyl, 4 oxy-octyl benzophenone is added after crosslinking agent and paraffin mixing in plasticizer, and nanometer silver paste is added after being kneaded uniformly, and mixture then is transferred to be cold-pressed in cold press and shape by elevated cure after mixing uniformly.Lead-free PVC plastics provided by the invention after tested, stablize, and heavy metal lead impurity is not introduced into preparation process by performance.
Description
Technical field
The present invention relates to technical field of polymer materials, more particularly to a kind of lead-free PVC plastics and preparation method thereof.
Background technology
Polyvinyl chloride, English abbreviation PVC (Polyvinyl chloride) are a kind of poly- made of polymerization of vinyl choride monomer
Close object.PVC plastic products have the characteristics that small density, wear-resisting, damping, sound insulation and processing and forming are easy, and are widely used in
Many fields such as building, chemical industry, electronics, space flight, automobile, agricultural, PVC plastic nowadays have become indispensable novel-section
Material.But PVC is poor to the stability of light and heat, in 100 DEG C or more or through a long time exposure in sunshine, will decompose and generate chlorine
Change hydrogen, and further autocatalysis is decomposed, and causes to change colour, physical mechanical property also declines rapidly, thus, in practical applications must
Stabilizer must be added to improve the stability to light and heat.
The stabilizer of PVC plastic is divided into heat stabilizer and light stabilizer, common heat stabilizer have lead salts, organotin,
Metal soap, compound stabilizer and organic additive etc., common light stabilizer have photomask agent, ultraviolet absorber, quencher and
Radical scavenger.Other a few class stabilizers in addition to lead salt stabilizer be required to compound auxiliary can be only achieved it is certain steady
Determine effect, lead salt stabilizer is widely used because of its good using effect within a very long time.But lead salt
Heavy metal lead in stabilizer is very big to human injury.Various countries have launched respectively the limitation to lead content in PVC plastic material products, because
The unleaded of this PVC product is inevitable development trend, and developing PVC plastic a unleaded and that performance is stablized has important meaning
Justice.
Invention content
Present invention mainly solves the technical issues of be that there are leaded or steady for the existing PVC plastic with higher stability
Determine agent and uses complicated problem.
In order to solve the above technical problems, one aspect of the present invention is：The present invention provides a kind of lead-free PVCs
The formula of plastics is combined according to mass parts meter by following substance:
。
Preferably, the molecular weight of the PVC rubber is 150-300 ten thousand.
Preferably, content of beary metal is 0 in the nanometer silver paste.
Preferably, the grain size of the nanometer silver paste is 100-200nm.
Preferably, the plasticizer is in dioctyl terephthalate, o-phthalic acid dibutyl ester and epoxidized soybean oil
It is at least one.
Preferably, the crosslinking agent be in haloflex and polymethyl methacrylate-butadiene-styrene at least
It is a kind of.
The present invention also provides the preparation methods of the lead-free PVC plastics comprising following steps：
1）By polyvinyl chloride resin, plasticizer after crosslinking agent and paraffin grinding uniformly, on twin-roll plastic mixing mill, is moulded at 110-160 DEG C
Refining 5-10 minutes, obtains a homogeneous mixture.
2）Continue to be kneaded 5-10 minutes after 2-hydroxy-4-n-octoxybenzophenone is added, reduces temperature to 80-120 DEG C.
3）Nanometer silver paste is added, it is uniform to be kneaded 10-30 minutes extremely material bodies.
4）The temperature was then adjusted to 150-200 DEG C, insulated and stirred 5-10 minutes.
5）Mixture is transferred in cold press and is cold-pressed sizing.
The beneficial effects of the invention are as follows：The lead-free PVC plastics of the present invention use stabilizer of the nanometer silver paste as PVC, lead to
It crosses nano-silver ionic and generates the compound that performance is stablized with the chlorion in PVC, ensure that the stability of PVC plastic, and
Lead is free of in the PVC plastic of the present invention, the preparation method of lead-free PVC plastics of the invention is only needed using conventional equipment and nothing
The effect that other auxiliary agents can reach stable PVC plastic need to excessively be compounded.
Description of the drawings
Nothing.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
The parts by weight of each raw material component and each component that prepare lead-free PVC plastics are respectively：
。
The present invention also provides the preparation methods of the lead-free PVC plastics comprising following steps：
1）By polyvinyl chloride resin, plasticizer after crosslinking agent and paraffin grinding uniformly, on twin-roll plastic mixing mill, is moulded at 110-160 DEG C
Refining 5-10 minutes, obtains transparent homogeneous mixture.
2）Continue to be kneaded 5-10 minutes after 2-hydroxy-4-n-octoxybenzophenone is added, reduces temperature extremely
80-120℃。
3）Nanometer silver paste is added, is kneaded 10-30 minutes, when expecting that body becomes muddiness from clarifying, material body is substantially uniform.
4）The temperature was then adjusted to 150-200 DEG C, insulated and stirred 5-10 minutes.
5）Mixture is transferred in cold press and is cold-pressed sizing.
To the Performance Evaluation of lead-free PVC plastics：Performance Evaluation index to PVC plastic includes hydraulic test, cold cycling
And oven test, the wherein appraisal procedure of hydraulic test and thermal cycling test are carried out according to GB 18191-2000, oven test
Appraisal procedure according to GB/T 8803-2001 carry out.
Embodiment 1-5：The molecular weight of PVC rubber is 1,500,000.
1 embodiment 1-5 formula components tables of table
Embodiment 6-10：The molecular weight of PVC rubber is 3,000,000.
2 embodiment 6-10 formula components tables of table
Hydraulic test, thermal cycling test and oven test are carried out to the PVC plastic of each embodiment and carry out Performance Evaluation, is obtained
The results are shown in Table 3：
3 lead-free PVC plastics performance assessment result of table
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to be said using the present invention
Equivalent structure or equivalent flow shift made by bright book content is applied directly or indirectly in other relevant technical fields,
Similarly it is included within the scope of the present invention.
Claims (7)
1. a kind of lead-free PVC plastics, which is characterized in that be combined according to mass parts by following substance：
。
2. a kind of lead-free PVC plastics according to claim 1, which is characterized in that the molecular weight of the PVC rubber is 150-
3000000.
3. a kind of lead-free PVC plastics according to claim 1, which is characterized in that content of beary metal in the nanometer silver paste
It is 0.
4. a kind of lead-free PVC plastics according to claim 3, which is characterized in that the grain size of the nanometer silver paste is 100-
200nm。
5. a kind of lead-free PVC plastics according to claim 1, which is characterized in that the plasticizer is terephthalic acid (TPA) two
At least one of monooctyl ester, o-phthalic acid dibutyl ester and epoxidized soybean oil.
6. a kind of lead-free PVC plastics according to claim 1, which is characterized in that the crosslinking agent be haloflex and
At least one of polymethyl methacrylate-butadiene-styrene.
7. a kind of preparation method of lead-free PVC plastics according to claim 1, which is characterized in that include the following steps：
1）By polyvinyl chloride resin, plasticizer after crosslinking agent and paraffin grinding uniformly, on twin-roll plastic mixing mill, is moulded at 110-160 DEG C
Refining 5-10 minutes, obtains a homogeneous mixture；
2）Continue to be kneaded 5-10 minutes after 2-hydroxy-4-n-octoxybenzophenone is added, reduces temperature to 80-120 DEG C；
3）Nanometer silver paste is added, it is uniform to be kneaded 10-30 minutes extremely material bodies；
4）The temperature was then adjusted to 150-200 degrees Celsius, insulated and stirred 5-10 minutes；
5）Mixture is transferred in cold press and is cold-pressed sizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227199.XA CN108329622A (en) | 2018-03-20 | 2018-03-20 | A kind of lead-free PVC plastics and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810227199.XA CN108329622A (en) | 2018-03-20 | 2018-03-20 | A kind of lead-free PVC plastics and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108329622A true CN108329622A (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810227199.XA Pending CN108329622A (en) | 2018-03-20 | 2018-03-20 | A kind of lead-free PVC plastics and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417680A (en) * | 2011-11-30 | 2012-04-18 | 广东联塑科技实业有限公司 | Lead-free PVC-U (Poly Vinyl Chloride-Unplasticized) pipe for drainage and manufacturing method thereof |
| CN105175948A (en) * | 2015-10-27 | 2015-12-23 | 辽宁程威塑料型材有限公司 | Lead-free environment-friendly sectional bar and production technology thereof |
-
2018
- 2018-03-20 CN CN201810227199.XA patent/CN108329622A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417680A (en) * | 2011-11-30 | 2012-04-18 | 广东联塑科技实业有限公司 | Lead-free PVC-U (Poly Vinyl Chloride-Unplasticized) pipe for drainage and manufacturing method thereof |
| CN105175948A (en) * | 2015-10-27 | 2015-12-23 | 辽宁程威塑料型材有限公司 | Lead-free environment-friendly sectional bar and production technology thereof |
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Application publication date: 20180727 |
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