CN109679259A - A kind of PVA composite material - Google Patents
A kind of PVA composite material Download PDFInfo
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- CN109679259A CN109679259A CN201811387253.3A CN201811387253A CN109679259A CN 109679259 A CN109679259 A CN 109679259A CN 201811387253 A CN201811387253 A CN 201811387253A CN 109679259 A CN109679259 A CN 109679259A
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- composite material
- tio
- pva
- pva composite
- nano
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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
- C08L29/00—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 an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
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- 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
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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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of PVA composite materials, are made of the component of following parts by weight: PVA is 60 parts -80 parts；PVC is 5 parts -10 parts；Modified Nano TiO2It is 20 parts -40 parts；Antioxidant is 0.1 part -0.5 part；Lubricant is 0.4 part -0.8 part；The degree of polymerization of PVA is 1700-1800, alcoholysis degree 80-100.Due to modified Nano TiO2Middle Ag+Enter nano-TiO2Lattice in, cement out Ti4+, promote nano-TiO2Crystal form changes from anatase titanium dioxide to rutile, so that the crystallinity of PVA composite material is improved, so that the tensile strength of material is improved.TiO2The transformation of crystal form also results in the raising of PVA composite material photocatalytic activity, to also strengthen the anti-aging property of PVA composite material.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly relate to a kind of PVA composite material.
Background technique
Polyvinyl alcohol (PVA) has that good mechanical property, gas permeation rate is low, oil resistant solvent resistance is good, rate of perviousness, no
The features such as static electrification, not dust suction, good printing performance, it is widely used in the fields such as household electrical appliance, automobile parts and Communication Equipment.With
Science and technology be constantly progressive, requirement of the people to material is higher and higher, in some specific fields, the property of common PVA material
Requirement can be no longer satisfied.
For this situation, by having synthesized a kind of modified nano-titanium dioxide (TiO2), with it come modified PVA, it is made
PVA composite material not only tensile strength is good, ageing-resistant performance is also improved to some extent, and it is multiple that this greatly expands PVA
The use scope of condensation material.
Summary of the invention
The object of the present invention is to provide a kind of PVA composite materials, to improve the ageing-resistant performance of PVA composite material.
The present invention is achieved by the following technical solutions:
A kind of PVA composite material, is made of the component of following parts by weight:
The degree of polymerization of the PVA is 1700-1800, alcoholysis degree 80-100.
The modified Nano TiO2Preparation method, comprising the following steps:
1) silver nitrate and ammonium metatungstate are incorporated in nitric acid by certain mol proportion, obtains yellow solution A；
2) by solution A and nano-TiO2It is added in reaction kettle by certain mass ratio when reacting one section at a certain temperature
Between, washing filters, and is dried to obtain product modification nano-TiO2。
The molar ratio of the silver nitrate and ammonium metatungstate is 6-12: 1-2.
Nano-TiO in the step 2)2For anatase titanium dioxide TiO2, partial size 15-25nm.
Solution A and nano-TiO in the step 22Mass ratio be 20-30: 16-24, reaction time 10-12h, instead
Answering temperature is 80-120 DEG C.
The antioxidant is three (2,4- di-t-butyl) phenyl-phosphites, four [β-(3,5- di-tert-butyl-hydroxy phenyl)
Propionic acid] pentaerythritol ester or 1,3,5- trimethyls -2,4, one of 6- (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene or more
Kind.
The lubricant is the combination of one or both of calcium stearate or stearic acid sodium.
A kind of preparation method of PVA composite material described in any of the above embodiments, includes the following steps:
(1) weighing parts by weight is 60 parts -80 parts of PVA, 20 parts -40 parts of modification TiO2, 0.1 part -0.5 part of antioxidant
With 0.4 part -0.8 part of mix lubricant and stir evenly, obtain mixture；
(2) by mixture extruding pelletization obtained in step (1) to get arrive PVA composite material.
3h dries to each raw material at 100 DEG C in elder generation before mixing in step (1).
Preferably, the step (2) specifically: mixture obtained in step (1) is put into double screw extruder
Extruding pelletization in hopper, wherein the double screw extruder includes six humidity provinces sequentially arranged, the temperature of the first humidity province
It is 140 DEG C~160 DEG C, the temperature in second temperature area is 160 DEG C~180 DEG C, and the temperature of third humidity province is 160 DEG C~180 DEG C,
The temperature of 4th humidity province is 160 DEG C~180 DEG C, and the temperature of the 5th humidity province is 160 DEG C~180 DEG C, the temperature of the 6th humidity province
Degree is 160 DEG C~180 DEG C, and the head temperature of the double screw extruder is 160 DEG C~180 DEG C, screw speed 120r/min
~300r/min.
The beneficial effects of the present invention are:
Due to modified Nano TiO2Middle Ag+Enter nano-TiO2Lattice in, cement out Ti4+, promote nano-TiO2It is brilliant
Type changes from anatase titanium dioxide to rutile, so that the crystallinity of PVA composite material is improved, so that the tensile strength of material is mentioned
It is high.
TiO2The transformation of crystal form also results in the raising of PVA composite material photocatalytic activity, so that it is compound also to strengthen PVA
The anti-aging property of material.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used to explanation and illustration technical solution of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
Embodiment 1
(1) weighing parts by weight is 60 parts of PVA, 5 parts of PVC, 20 parts of modified Nano TiO2, 0.1 part of Irganox1330 and 0.4
Part stearic acid sodium is mixed and stirred for uniformly, obtaining mixture；
(2) mixture obtained in step (1) is put into the hopper of double screw extruder extruding pelletization to get arriving
PVA composite material, wherein the temperature of the first humidity province of double screw extruder is 140 DEG C, and the temperature in second temperature area is 160
DEG C, the temperature of third humidity province is 160 DEG C, and the temperature of the 4th humidity province is 160 DEG C, and the temperature of the 5th humidity province is 160 DEG C, the
The temperature of six humidity provinces is 160 DEG C DEG C, and the head temperature of the double screw extruder is 160 DEG C, screw speed 120r/min.
Embodiment 2
(1) weighing parts by weight is 80 parts of PVA, 10 parts of PVC, 40 parts of modified Nano TiO2, 0.2 part of Irganox1330,0.1
Part Irganox1010,0.2 part of Irganox168 and 0.8 part of calcium stearate are mixed and stirred for uniformly, obtaining mixture；
(2) mixture obtained in step (1) is put into the hopper of double screw extruder extruding pelletization to get arriving
PVA composite material, wherein the temperature of the first humidity province of double screw extruder is 160 DEG C, and the temperature in second temperature area is 180
DEG C, the temperature of third humidity province is 180 DEG C, and the temperature of the 4th humidity province is 180 DEG C, and the temperature of the 5th humidity province is 180 DEG C, the
The temperature of six humidity provinces is 180 DEG C DEG C, and the head temperature of the double screw extruder is 180 DEG C, screw speed 300r/min.
Embodiment 3
(1) weighing parts by weight is 70 parts of PVA, 6 parts of PVC, 30 parts of modified Nano TiO2, 0.2 part of Irganox1330,0.1 part
Irganox168,0.3 part of calcium stearate and 0.3 part of stearic acid sodium are mixed and stirred for uniformly, obtaining mixture；
(2) mixture obtained in step (1) is put into the hopper of double screw extruder extruding pelletization to get arriving
PVA composite material, wherein the temperature of the first humidity province of double screw extruder is 150 DEG C, and the temperature in second temperature area is 170
DEG C, the temperature of third humidity province is 170 DEG C, and the temperature of the 4th humidity province is 170 DEG C, and the temperature of the 5th humidity province is 170 DEG C, the
The temperature of six humidity provinces is 170 DEG C DEG C, and the head temperature of the double screw extruder is 170 DEG C, screw speed 210r/min.
The above is only the descriptions of the preferred embodiment of the present invention, it is noted that due to the finiteness of literal expression, and
Objectively there is unlimited specific structure, for those skilled in the art, is not departing from the principle of the invention
Under the premise of, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (7)
1. a kind of PVA composite material, which is characterized in that be made of the component of following parts by weight:
The degree of polymerization of the PVA is 1700-1800, alcoholysis degree 80-100.
2. PVA composite material according to claim 1, which is characterized in that the modified Nano TiO2Preparation method, packet
Include following steps:
1) silver nitrate and ammonium metatungstate are incorporated in nitric acid by certain mol proportion, obtains yellow solution A；
2) by solution A and nano-TiO2Reaction a period of time at a certain temperature, washing are added in reaction kettle by certain mass ratio
It filters, is dried to obtain product modification nano-TiO2。
3. PVA composite material according to claim 2, which is characterized in that the molar ratio of the silver nitrate and ammonium metatungstate
It is 6-12: 1-2.
4. PVA composite material according to claim 2, which is characterized in that nano-TiO in the step 2)2For anatase titanium dioxide
TiO2, partial size 15-25nm.
5. PVA composite material according to claim 2, which is characterized in that solution A and nano-TiO in the step 2)2
Mass ratio be 20-30: 16-24, reaction time 10-12h, reaction temperature be 80-120 DEG C.
6. PVA composite material according to claim 1, which is characterized in that the antioxidant is three (2,4- di-t-butyls)
Phenyl-phosphite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters or 1,3,5- trimethyls -2,4,6-
One of (3,5- di-t-butyl -4- hydroxyphenylmethyl) benzene is a variety of.
7. PVA composite material according to claim 1, which is characterized in that the lubricant is calcium stearate or stearic acid
The combination of one or both of sodium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387253.3A CN109679259A (en) | 2018-11-19 | 2018-11-19 | A kind of PVA composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387253.3A CN109679259A (en) | 2018-11-19 | 2018-11-19 | A kind of PVA composite material |
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| Publication Number | Publication Date |
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| CN109679259A true CN109679259A (en) | 2019-04-26 |
Family
ID=66184907
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811387253.3A Withdrawn CN109679259A (en) | 2018-11-19 | 2018-11-19 | A kind of PVA composite material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737051A (en) * | 2005-07-19 | 2006-02-22 | 浙江理工大学 | High dispersion nanometer oxide/polyvinyl alcohol composite material preparation method |
| CN102643497A (en) * | 2012-04-10 | 2012-08-22 | 四川大学 | Inorganic powder highly filled polyvinyl alcohol composite material and preparation method thereof |
| CN106479096A (en) * | 2016-10-21 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of PVA composite and preparation method thereof |
| CN107955301A (en) * | 2017-11-10 | 2018-04-24 | 黄忠波 | A kind of PVA composite materials |
-
2018
- 2018-11-19 CN CN201811387253.3A patent/CN109679259A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737051A (en) * | 2005-07-19 | 2006-02-22 | 浙江理工大学 | High dispersion nanometer oxide/polyvinyl alcohol composite material preparation method |
| CN102643497A (en) * | 2012-04-10 | 2012-08-22 | 四川大学 | Inorganic powder highly filled polyvinyl alcohol composite material and preparation method thereof |
| CN106479096A (en) * | 2016-10-21 | 2017-03-08 | 安徽江淮汽车集团股份有限公司 | A kind of PVA composite and preparation method thereof |
| CN107955301A (en) * | 2017-11-10 | 2018-04-24 | 黄忠波 | A kind of PVA composite materials |
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Application publication date: 20190426 |
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