CN101643568B - Formula of ternary copolymer redispersible powdered resin and preparation method thereof - Google Patents
Formula of ternary copolymer redispersible powdered resin and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a formula of ternary copolymer re-dispersible powdered resin and the raw materials comprise ternary copolymer emulsion, polyvinyl alcohol, white carbon black and calcium carbonate, wherein the ternary copolymer emulsion is mixed emulsion of organic silicon monomer (1%-5%), di-dutyl maleate (40%-60%) and vinyl acetate (40%-60%) and the weight percent of the residual three substances, namely polyvinyl alcohol, white carbon black and calcium carbonate are separately 5%-15%, 2%-15% and 5%-15%. The ternary copolymer re-dispersible powdered resin is characterized by excellent water resistance and thermal insulation functions, comprehensive adhesive bonding, low temperature flexibility and mechanical performance, excellent weather resistance, low volatile organic compound (VOC) and penetrating odor, good rheological property, stable chemical production and storage stability and the like.
Description
Technical field:
The present invention relates to a kind of formula of ternary copolymer redispersible powdered resin and making method.
Background technology:
Outer wall heat preservation dry-powder mortar developed country abroad begins to use already, in Europe and the U.S. adopt high energy-saving environment protection type dry-mix with regard to eliminating traditional mortar from phase early 1970s.Over more than 30 year, at the usable floor area of American-European developed country above 800,000,000 square metres.In Southeast Asian countries and regions such as Korea S, Japan, Singapore and Hong-Kong, Taiwan etc. all is widely used.
We are domestic along with the attention of national policy to the building energy conservation problem, and the architectural exterior insulation industry more and more receives publicity.To the end of the year 2004, about 7,800,000 tons of Chinese commodity dry-mix yearly capacity, but also commodity mortar is not carried out large-scale production and widespread usage on the domestic market.Now, country has issued enforceable policy, all residential housings must be carried out exterior-wall heat insulation, energy conservation standard also from 1998 initial 30% bring up to present 50%, wherein Pekinese's energy conservation standard has been required to have brought up to 65%, this just challenges to the lagging material of thermal insulation layer, building heat preservation is become really begin the industry of popularizing.But China's redispersable latex powder in the market mainly relies on import, and domestic some enterprise begins to enter this field but do not have not on a large scale, and technology also has much room for improvement.So this series products in use exists on the market subject matter and defective show as: 1, use imported products such as Europe the cost height, cost an arm and a leg, do not meet the fundamental realities of the country of China; 2, home products does not also have scale operation at present, and product is in flexibility and deformability, bending strength, wear resistance, toughness, cohesive force and the density (impermeability) of mortar, and also there is bigger deficiency in aspects such as water retention capacity and application property, heat-insulating property is also relatively poor, does not reach building environmental protection, energy-conservation effect.
Summary of the invention:
The present invention relates to a kind of environmental protection, energy-conservation formula of ternary copolymer redispersible powdered resin.
Technology contents of the present invention is such: its raw material comprises: ternary copolymer emulsion, polyvinyl alcohol, white carbon black, lime carbonate, described ternary copolymer emulsion are the mixed emulsion of organosilane monomer, dibutyl maleate, vinyl acetate between to for plastic; Wherein the weight percent of three kinds of materials in the ternary copolymer emulsion is: organosilane monomer (1%～5%), dibutyl maleate (40%～60%), vinyl acetate between to for plastic (40%～60%); The weight percent that other three kinds of goods and materials account for six kinds of material gross weights is: polyvinyl alcohol (5%～15%), white carbon black (2%～15%), lime carbonate (5%～15%).
Characteristics such as the present invention has excellent waterproof thermal-insulated function, comprehensive bonding, low temperature flexibility and mechanical property, good weathering resistance, hang down organic volatile (VOC) content and low irritant smell, good rheological, stable Chemical Manufacture and storage stability, can satisfy all indexs, meet and study " building dry-mixed mortar redispersable latex powder " industry standard that total institute takes the lead and drafts by Beijing architectural materials science in February, 2008 as the redispersible polymer rubber powder.
The present invention system is by the powdery dispersion that the modified high-molecular polymer emulsion processes from strand, and still can form the stable polymer emulsion again after adding water, and its every performance is identical with original emulsion.
Latex powder cooperates the bonding that can be widely used in building tile binding agent, exterior-wall heat insulation and facing system, gypsum-based products and mineral base facing mortar, self-flatting ground making level layer, waterproof mortar, concrete repairing mortar with cement, also can be applicable to fields such as metope plaster material, cement based powder coating.
Embodiment:
Ternary copolymer redispersible powdered resin, it is characterized in that: its raw material comprises: ternary copolymer emulsion, polyvinyl alcohol, white carbon black, lime carbonate, described ternary copolymer emulsion are the mixed emulsion of organosilane monomer, dibutyl maleate, vinyl acetate between to for plastic; Wherein the weight percent of three kinds of materials in the ternary copolymer emulsion is: organosilane monomer (1%～5%), dibutyl maleate (40%～60%), vinyl acetate between to for plastic (40%～60%); The weight percent that other three kinds of goods and materials account for six kinds of material gross weights is: polyvinyl alcohol (5%～15%), white carbon black (2%～15%), lime carbonate (5%～15%).
Wherein the weight percent that accounts for six kinds of material gross weights of the weight summation of three kinds of materials in the ternary copolymer emulsion is: (70%～88%), the weight percent that accounts for six kinds of material gross weights of the weight summation of other three kinds of materials is: (12%～30%).
It is to carry out exsiccant by spray method that described ternary copolymer emulsion also can be described as ternary copolymer redispersible powdered resin, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 80～150 ℃, temperature out is at 40～100 ℃.
Embodiment 1
1., the weight percent of three kinds of materials in the ternary copolymer redispersible powdered resin is: organosilane monomer (3%), dibutyl maleate (37%), vinyl acetate between to for plastic (60%); Above-mentioned 3 parts of raw materials are mixed and fully stir the back forming after the homogeneous latex emulsion, add the weight percent that other three kinds of materials account for six kinds of material gross weights again and be: polyvinyl alcohol (7%), white carbon black (15%), lime carbonate (8%) mix.
2., the 1. formed ternary copolymer redispersible powdered resin of step is passed through spraying drying, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 100 ℃, temperature out is at 60 ℃.
Embodiment 2
1., the weight percent of three kinds of materials in the ternary copolymer redispersible powdered resin is: organosilane monomer (4%), dibutyl maleate (56%), vinyl acetate between to for plastic (40%); Above-mentioned 3 parts of raw materials are mixed and fully stir the back forming after the homogeneous latex emulsion, add the weight percent that other three kinds of materials account for six kinds of material gross weights again and be: polyvinyl alcohol (12%), white carbon black (6%), lime carbonate (12%) mix.
2., the 1. formed ternary copolymer redispersible powdered resin of step is passed through spraying drying, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 120 ℃, temperature out is at 70 ℃.
Embodiment 3
1., the weight percent of three kinds of materials in the ternary copolymer redispersible powdered resin is: organosilane monomer (2%), dibutyl maleate (40%), vinyl acetate between to for plastic (58%); Above-mentioned 3 parts of raw materials are mixed and fully stir the back forming after the homogeneous latex emulsion, add the weight percent that other three kinds of materials account for six kinds of material gross weights again and be: polyvinyl alcohol (5%), white carbon black (2%), lime carbonate (5%) mix.
2., the 1. formed ternary copolymer redispersible powdered resin of step is passed through spraying drying, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 150 ℃, temperature out is at 100 ℃.
Embodiment 4
1., the weight percent of three kinds of materials in the ternary copolymer redispersible powdered resin is: organosilane monomer (5%), dibutyl maleate (60%), vinyl acetate between to for plastic (35%); Above-mentioned 3 parts of raw materials are mixed and fully stir the back forming after the homogeneous latex emulsion, add the weight percent that other three kinds of materials account for six kinds of material gross weights again and be: polyvinyl alcohol (15%), white carbon black (7%), lime carbonate (8%) mix.
2., the 1. formed ternary copolymer redispersible powdered resin of step is passed through spraying drying, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 80 ℃, temperature out is at 40 ℃.
Embodiment 5
1., the weight percent of three kinds of materials in the ternary copolymer redispersible powdered resin is: organosilane monomer (3%), dibutyl maleate (55%), vinyl acetate between to for plastic (40%); Above-mentioned 3 parts of raw materials are mixed and fully stir the back forming after the homogeneous latex emulsion, add the weight percent that other three kinds of materials account for six kinds of material gross weights again and be: polyvinyl alcohol (5%), white carbon black (10%), lime carbonate (15%) mix.
2., the 1. formed ternary copolymer redispersible powdered resin of step is passed through spraying drying, ternary copolymer redispersible powdered resin utilizes spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein drying temperature be inlet temperature at 150 ℃, temperature out is at 80 ℃.
The technical indicator of the product of producing according to the foregoing description is as follows:
Technical indicator is described:
| Thixotropy index (6rpm/60rpm) | Surface contact angle | The backfin ratio | |
| This product | 2.7 | 60° | 2.5 |
| External contrast product | 2.5 | 60° | 2.5 |
(1) thixotropy index: the viscosity of fluid under different shearing forces changes than (thixotropy).For latex, reflected its application property.
(2) surface contact angle: hydrophobic nature index, object have reflected the water-repellancy of material to the repulsion ability of water.
(3) backfin ratio: the ratio of ultimate compression strength and folding strength, it is to characterize flexible the key technical indexes.
The salient features of product and technical indicator:
Technical indicator is described: prescription has originality, and the indexs such as " thixotropy, hydrophobic nature, anti-folding and anti-pressing performances " of formulation product will reach the level of external like product simultaneously.
Spray drying technology research.Spraying drying is to utilize spraying gun that feed liquid is separated into tiny droplet, and in the heated drying medium rapidly evaporating solvent form the process of power-product, wherein the selection of drying temperature is most important, and drying temperature control inlet temperature is at 80～150 ℃, and temperature out is between 40～100 ℃.
Product performance: redispersable latex powder is exactly a kind of environmental protection, energy-conservation, new type of polymer powder adhesive, is requisite most important function additive in the dry-mixed mortar.
Redispersable latex powder is the powdery dispersion that is processed from strand by the modified high-molecular polymer emulsion, still can form the stable polymer emulsion again after adding water, and its every performance is identical with original emulsion.Its physicochemical property is as follows:
A, outward appearance: white powder, unrestricted flow
B, solid content: 〉=98%
C, ash (%): 10 ± 2
D, tap density (g/l): 400～600
E, median size (um): about 80
F, 50% solution viscosity (pas): 1.0～3.0
G, pH value: 5～8
H, minimum film-forming temperature (℃): 0.
Claims (2)
1. ternary copolymer redispersible powdered resin, it is characterized in that: its raw material comprises: ternary copolymer emulsion, polyvinyl alcohol, white carbon black, lime carbonate, described ternary copolymer emulsion are the mixed emulsion of organosilane monomer, dibutyl maleate, vinyl acetate between to for plastic; Wherein the weight percent of three kinds of materials in the ternary copolymer emulsion is: organosilane monomer 1%～5%, dibutyl maleate 40%～60%, vinyl acetate between to for plastic 40%～60%, and wherein the weight percent sum of three kinds of materials in the ternary copolymer emulsion is absolutely; The weight percent that other three kinds of materials account for six kinds of material gross weights is: polyvinyl alcohol 5%～15%, white carbon black 2%～15%, lime carbonate 5%～15%.
2. ternary copolymer redispersible powdered resin according to claim 1, it is characterized in that: the weight percent that the weight summation of three kinds of materials in the ternary copolymer emulsion accounts for six kinds of material gross weights is: 70%～88%, and the weight percent that the weight summation of other three kinds of materials accounts for six kinds of material gross weights is: 12%～30%.
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| CN2009103065435A CN101643568B (en) | 2009-09-03 | 2009-09-03 | Formula of ternary copolymer redispersible powdered resin and preparation method thereof |
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| CN2009103065435A CN101643568B (en) | 2009-09-03 | 2009-09-03 | Formula of ternary copolymer redispersible powdered resin and preparation method thereof |
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| CN101643568B true CN101643568B (en) | 2011-07-06 |
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| CN103187115B (en) * | 2011-12-27 | 2015-08-26 | 比亚迪股份有限公司 | A kind of electrocondution slurry of low temperature curing type |
| CN103461983B (en) * | 2013-07-18 | 2015-04-22 | 浙江劲膳美生物科技有限公司 | Special diet for people with stagnant blood constitution |
| CN106179518B (en) * | 2016-08-03 | 2019-03-15 | 青海远景新能源科技有限公司 | Catalyst composites and dry powder latex paint of degradation of formaldehyde and preparation method thereof |
| CN109708978B (en) * | 2018-12-29 | 2021-09-07 | 北京东方雨虹防水技术股份有限公司 | Low-temperature flexibility testing method suitable for waterproof hot-melt pressure-sensitive adhesive |
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