CN1807535A - Nanometer composite polyvinyl alcohol adhesive and its preparation method - Google Patents
Nanometer composite polyvinyl alcohol adhesive and its preparation method Download PDFInfo
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- CN1807535A CN1807535A CN 200610038203 CN200610038203A CN1807535A CN 1807535 A CN1807535 A CN 1807535A CN 200610038203 CN200610038203 CN 200610038203 CN 200610038203 A CN200610038203 A CN 200610038203A CN 1807535 A CN1807535 A CN 1807535A
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- polyvinyl alcohol
- water
- nanometer composite
- adhesive
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Abstract
This invention relates to a nanocomposite polyvinyl alcohol adhesive, which is composed of polyvinyl alcohol, water, and added nanobuckle stick dust or nanomontmorillonite. Mass ratios of those components are: polyvinyl alcohol1-3%, nanobuckle stick dust or nanomontmorillonite 1-6%, water 91-98%. This invention also supplies the preparing method for the adhesive: charge polyvinyl alcohol, nanobuckle stick dust or nanomontmorillonite into reaction bulb, agitate to homogeneous at the speed of 40-50 circles per minite at normal temperature, heat to 90-98deg C, agitate for 0. 5-1 hour at the speed of60-70 circles per minite, discharge and get the nanocomposite polyvinyl alcohol adhesive. The adhesive made by this invention has such advantages: high bond strength, good heat-durability, little cost, not environmental pollution, fitting environment requirements totally. At the same time, it is easy to prepare and process flow is short, these reduce process cost largely. It is a ideal substitute for traditional polyvinyl alcohol.
Description
Technical field
The present invention relates to a kind of vinyl tackiness agent, specifically, relate to a kind of nanometer composite polyvinyl alcohol adhesive and preparation method thereof.
Background technology
Being the tackiness agent of major ingredient preparation with the polyvinyl alcohol, is that polyvinyl alcohol is directly soluble in water at first, uses after adding suitable softening agent.This tackiness agent bonding force is very strong, but poor heat resistance, particularly hot water resistance is poorer, and glued membrane will decompose in 45-50 ℃ of hot water, not have promotional value.
After nineteen sixty-five, the manufacturer of China will gather ethanol and make polyvinyl formal (PVFO) through acetal processing (generally being formal).PVFO has overcome the shortcoming of pure polyvinyl alcohol poor heat resistance, but acetal technology is comparatively complicated, and cost is higher, has a large amount of formaldehyde to overflow during use, stimulates eyes, and environment has been caused great pollution.
Chinese patent 86104811 discloses a kind of " soluble polyvinyl acetals adhesive ", is the product of polyvinyl alcohol and dialdehyde reaction.This caking agent has the temperature resistant range and the better waterproof of broad, but that its weak point is a bonding force is lower, cost height, contaminate environment.
Summary of the invention
The object of the present invention is to provide that a kind of cohesive strength height, good heat resistance, cost are low, the nanometer composite polyvinyl alcohol adhesive of environmentally safe.
The technical scheme that realizes above-mentioned purpose is: a kind of nanometer composite polyvinyl alcohol adhesive, contain the polyethylene alcohol and water, be added with nano level attapulgite or nano level polynite, the weight percent of these compositions is: polyvinyl alcohol 1～3%, nano level attapulgite or nano level cover protruding native 1～6%, water 91～98%.
After adopting technique scheme, multiple effects such as that nano level attapulgite or nano level polynite have concurrently is anticorrosion, impermeable, tackify, nano level attapulgite or nano level polynite were inserted between the polyethylene molecule segment when raw material mixed, and and polyvinyl alcohol molecular chain generation intensive adsorption, make the polyethylene sex change, generate the nanometer composite polyvinyl alcohol adhesive of cohesive strength height, good heat resistance.Because formaldehydeless in its raw material, thereby can not pollute environment.
Further aim of the present invention provides a kind of preparation method of simple to operate, technical process is short, tooling cost is low nanometer composite polyvinyl alcohol adhesive.
Realize that this further purpose technical scheme is: a kind of preparation method of nanometer composite polyvinyl alcohol adhesive, its preparation process is: polyvinyl alcohol, nano level attapulgite or nano level polynite and water are added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.
The nanometer composite polyvinyl alcohol adhesive that this method is produced is compared with traditional formaldehyde polyvinyl acetal stick, has advantage:
1, select single auxiliary agent (consumption seldom) for use, easy and simple to handle, shortened process greatly reduces tooling cost.
2, reduce the consumption (about 50%) of polyvinyl alcohol, do not use industrial chemicals such as formaldehyde, hydrochloric acid and sodium hydroxide fully, reduce raw materials cost about 12%, and thoroughly eliminated problem of environmental pollution.
3, bonding strength improves, and initial viscosity is good, and the lower polyester of surface energy, polyester-cotton blend or artificial silk are also had adhesive effect preferably, and in addition, the thermotolerance of tackiness agent also is significantly improved.Concrete performance index see the following form.
Table 1 tackiness agent of the present invention and the contrast of PVFO glue economic technology characteristic
Annotate: 1#, 2#, 3# are nanometer composite polyvinyl alcohol adhesive, and PVFO glue is the formaldehyde polyvinyl acetal tackiness agent.
Embodiment
The present invention is further detailed explanation below in conjunction with embodiment.
Embodiment one
Join the 100kg nanometer composite polyvinyl alcohol adhesive, get the 1.5kg polyvinyl alcohol, nano level attapulgite 2.4kg, water 96.1kg, these raw materials are all added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.This tackiness agent can be used for the bonding of paper/woven dacron matrix material.
The molecular formula of polyvinyl alcohol is: (CH
2CHOH)
n
The molecular formula of attapulgite is: MgAl
5Si
8O
20(OH)
2(OH
2)
44H
2O
Embodiment two
Join the 100kg nanometer composite polyvinyl alcohol adhesive, get the 1.5kg polyvinyl alcohol, nano level attapulgite 3kg, water 95.5kg, these raw materials are all added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.Tackiness agent after making is used for the bonding of WALL CLOTH.
Embodiment three
Join the 100kg nanometer composite polyvinyl alcohol adhesive, get the 2kg polyvinyl alcohol, nano level attapulgite 3kg, water 95kg, these raw materials are all added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.The tackiness agent of making is used for the bonding of glued board.
Embodiment four
Join the 100kg nanometer composite polyvinyl alcohol adhesive, get the 2kg polyvinyl alcohol, nano level polynite 3kg, water 95kg, these raw materials are all added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.The sticking material of the quilt of this tackiness agent is a glued board.
The molecular formula of polynite is: Na
x(H
2O)
4{ (Al
2-xMg
x) [Si
4O
10] (OH)
2}
Water among above-mentioned four kinds of embodiment is ionized water or deionized water, also can be common water.
Nanometer composite polyvinyl alcohol adhesive of the present invention is mainly used in that architectural intermediate water mud strengthens, preparation putty and coating for internal and external wall and timber, paper bonding.
Nanometer composite polyvinyl alcohol adhesive of the present invention is the ideal substitute of traditional polyvinyl alcohol formal glue stick, its cost low (cost is than traditional tackiness agent low about 12%), performance are good, and do not contain formaldehyde, environmental protection fully, therefore have market outlook and very high social benefit preferably.
Claims (4)
1, a kind of nanometer composite polyvinyl alcohol adhesive, contain the polyethylene alcohol and water, it is characterized in that: be added with nano level attapulgite or nano level polynite, the weight percent of these compositions is: polyvinyl alcohol 1～3%, nano level attapulgite or nano level cover protruding native 1～6%, water 91～98%.
2, nanometer composite polyvinyl alcohol adhesive according to claim 1 is characterized in that: described water is ionized water.
3, nanometer composite polyvinyl alcohol adhesive according to claim 1 is characterized in that: described water is deionized water.
4, the preparation method of the described nanometer composite polyvinyl alcohol adhesive of a kind of claim 1, it is characterized in that its preparation process is: polyvinyl alcohol, nano level attapulgite or nano level polynite and water are added in the reaction flask, stir with 40～50 rev/mins speed at normal temperatures, be warming up to 90～98 ℃, after 0.5～1 hour, discharging gets nanometer composite polyvinyl alcohol adhesive with 60～70 rev/mins speed stirrings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610038203 CN1807535A (en) | 2006-02-07 | 2006-02-07 | Nanometer composite polyvinyl alcohol adhesive and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610038203 CN1807535A (en) | 2006-02-07 | 2006-02-07 | Nanometer composite polyvinyl alcohol adhesive and its preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1807535A true CN1807535A (en) | 2006-07-26 |
Family
ID=36839635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610038203 Pending CN1807535A (en) | 2006-02-07 | 2006-02-07 | Nanometer composite polyvinyl alcohol adhesive and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1807535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177330A (en) * | 2017-07-18 | 2017-09-19 | 合肥万之景门窗有限公司 | A kind of use in construction of door and window adhesive and preparation method |
-
2006
- 2006-02-07 CN CN 200610038203 patent/CN1807535A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177330A (en) * | 2017-07-18 | 2017-09-19 | 合肥万之景门窗有限公司 | A kind of use in construction of door and window adhesive and preparation method |
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