CN107955301A - A kind of PVA composite materials - Google Patents
A kind of PVA composite materials Download PDFInfo
- Publication number
- CN107955301A CN107955301A CN201711113403.7A CN201711113403A CN107955301A CN 107955301 A CN107955301 A CN 107955301A CN 201711113403 A CN201711113403 A CN 201711113403A CN 107955301 A CN107955301 A CN 107955301A
- Authority
- CN
- China
- Prior art keywords
- tio
- composite materials
- pva
- pva composite
- nano
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- 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
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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
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The present invention relates to a kind of PVA composite materials, it is made of the component of following parts by weight：PVA is 60 parts 80 parts；AES is 5 parts 10 parts；Modified Nano TiO2For 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 1,700 1800, and alcoholysis degree is 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 as to improve the crystallinity of PVA composite materials so that the tensile strength of material is improved.TiO2The transformation of crystal form also results in the raising of PVA composite material photocatalytic activities, so as to also strengthen the anti-aging property of PVA composite materials.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly relates to a kind of PVA composite materials.
Background technology
Polyvinyl alcohol (PVA) has 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, auto parts machinery and Communication Equipment.With
The continuous progressive of science and technology, requirement of the people to material is higher and higher, in some specific fields, the property of common PVA materials
It cannot can meet the requirements.
For this situation, by having synthesized a kind of modified nano-titanium dioxide (TiO2), with it come modified PVA, it is made
PVA composite materials not only tensile strength is good, ageing-resistant performance is also improved to some extent, this greatly expands PVA and answers
The use scope of condensation material.
The content of the invention
The object of the present invention is to provide a kind of PVA composite materials and preparation method thereof, to improve the resistance to old of PVA composite materials
Change performance.
The present invention is achieved by the following technical solutions：
A kind of PVA composite materials, are 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, comprise 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 to by certain mass ratio in reaction kettle when reacting one section at a certain temperature
Between, washing filters, dry both 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, particle diameter 15-25nm.
Solution A and nano-TiO in the step 22Mass ratio be 20-30: 16-24, reaction time 10-12h, instead
It is 80-120 DEG C to answer temperature.
The antioxidant is three (2,4- di-t-butyl) phenyl-phosphites, four [β-(3,5- di-tert-butyl-hydroxy phenyls)
Propionic acid] pentaerythritol ester or 1,3,5- trimethyls -2,4, one kind or more in 6- (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene
Kind.
The lubricant combines for one or both of calcium stearate or stearic acid sodium.
The beneficial effects of the invention are as follows：
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 as to improve the crystallinity of PVA composite materials so that the tensile strength of material is carried
It is high.
TiO2The transformation of crystal form also results in the raising of PVA composite material photocatalytic activities, so that it is compound also to strengthen PVA
The anti-aging property of material.
Embodiment
Carry out the technical solution that the present invention will be described in detail by the following examples, following embodiment is only exemplary, only
It can be used for explanation and illustration technical scheme, and be not to be construed as the limitation to technical solution of the present invention.
Embodiment 1
(1) parts by weight are weighed as 60 parts of PVA, 5 parts of AES, 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 extruding pelletization in the hopper of double screw extruder, that is, is obtained
PVA composite material P1, 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 the 3rd 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 temperature of the 6th humidity province is 160 DEG C DEG C, and the head temperature of the double screw extruder is 160 DEG C, and screw speed is
120r/min。
Embodiment 2
(1) parts by weight are weighed as 80 parts of PVA, 10 parts of AES, 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 extruding pelletization in the hopper of double screw extruder, that is, is obtained
PVA composite material P2, 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 the 3rd 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 temperature of the 6th humidity province is 180 DEG C DEG C, and the head temperature of the double screw extruder is 180 DEG C, and screw speed is
300r/min。
Embodiment 3
(1) parts by weight are weighed as 70 parts of PVA, 8 parts of AES, 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 extruding pelletization in the hopper of double screw extruder, that is, is obtained
PVA composite material P3, 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 the 3rd 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 temperature of the 6th humidity province is 170 DEG C DEG C, and the head temperature of the double screw extruder is 170 DEG C, and screw speed is
210r/min。
It the above is only the description of the preferred embodiment of the present invention, it is noted that due to the finiteness of literal expression, and
Objectively there are unlimited concrete structure, for those skilled in the art, the principle of the invention is not being departed from
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of PVA composite materials, it is characterised 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 materials according to claim 1, it is characterised in that the modified Nano TiO2Preparation method, bag
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
Filter, it is dry both to obtain product modification nano-TiO2。
3. PVA composite materials according to claim 2, it is characterised in that the molar ratio of the silver nitrate and ammonium metatungstate
For 6-12: 1-2.
4. PVA composite materials according to claim 2, it is characterised in that nano-TiO in the step 2)2For anatase titanium dioxide
TiO2, particle diameter 15-25nm.
5. PVA composite materials according to claim 2, it is characterised 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 materials according to claim 1, it is characterised 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 or more in (3,5- di-t-butyl -4- hydroxyphenylmethyls) benzene.
7. PVA composite materials according to claim 1, it is characterised in that the lubricant is calcium stearate or stearic acid
One or both of sodium combines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113403.7A CN107955301A (en) | 2017-11-10 | 2017-11-10 | A kind of PVA composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711113403.7A CN107955301A (en) | 2017-11-10 | 2017-11-10 | A kind of PVA composite materials |
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| Publication Number | Publication Date |
|---|---|
| CN107955301A true CN107955301A (en) | 2018-04-24 |
Family
ID=61964420
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711113403.7A Pending CN107955301A (en) | 2017-11-10 | 2017-11-10 | A kind of PVA composite materials |
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| CN (1) | CN107955301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679259A (en) * | 2018-11-19 | 2019-04-26 | 任静儿 | A kind of PVA composite material |
-
2017
- 2017-11-10 CN CN201711113403.7A patent/CN107955301A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109679259A (en) * | 2018-11-19 | 2019-04-26 | 任静儿 | A kind of PVA composite material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180424 |