CN107011589A - A kind of method for improving polyvinyl chloride resin ageing whiteness - Google Patents
A kind of method for improving polyvinyl chloride resin ageing whiteness Download PDFInfo
- Publication number
- CN107011589A CN107011589A CN201610577253.4A CN201610577253A CN107011589A CN 107011589 A CN107011589 A CN 107011589A CN 201610577253 A CN201610577253 A CN 201610577253A CN 107011589 A CN107011589 A CN 107011589A
- Authority
- CN
- China
- Prior art keywords
- toughness reinforcing
- polyvinyl chloride
- solid
- latex
- chloride resin
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- 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)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a kind of method for improving polyvinyl chloride resin ageing whiteness.Solid-state hindered phenol age resistor through emulsifier at a certain temperature is subjected to anti-aging processing to toughness reinforcing latex, then adds in PVC slurries, toughened PVC resin is prepared in the presence of flocculant.Polyvinyl chloride resin prepared by the toughness reinforcing latex after being handled using anti-aging, its ageing whiteness is greatly improved, and also effectively increases the heat endurance and processing stability of toughened PVC resin.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of method of raising polyvinyl chloride resin ageing whiteness.
Background technology
Presently disclosed patent be by the adjustment to component used in suspension polymerization of VC system, it is poly- to improve
Whiteness, the transparency or the heat endurance of vinyl chloride resin.
A kind of aqueous suspension polymerization method of the patent No. CN 1501945A invention there is provided vinyl chloride.Using the invention
Preparing has good white colour Corvic.In method of the present invention for vinyl chloride aqueous suspension polymerization, polymerization is drawn
Hair agent contains at least one compound selected from dialkyl peroxydicarbonates, the tertiary alkanoic acid ester of peroxide and diacyl peroxides,
Nitroxide type stable free radical has been used as polymerization terminator.
Japan Patent JP2000143710 inventions provide a kind of preparation method of Corvic, using the invention system
A kind of standby transparent and fabulous heat-resisting water whitening Corvic having had, for producing transparent article, aqueous phase is deposited
In a kind of special suspension stabilizer.
Japan Patent JP51074078 provides a kind of suspension polymerized vinyl chloride.Heat endurance improvement is prepared using the invention
Polyvinyl chloride, polymerization temperature at 47-57 DEG C, polymerization catalyst include acetyl glyceryl ether phosphatidylcholine and even two-（2,4-
Dimethyl -4- methoxyl-valeronitriles）, suspension stabilizer is the vinyl acetate of 70-78% saponification, and saponification degree is 80-86%.It is mixed
Catalyst, stabilizer, the VCM of conjunction polymerize 6.8 hours at 53 DEG C, and the good polyvinyl chloride of the transparency is made, shows
Its discoloration-resisting is good.
Japan Patent JP2024304 provides a kind of transparent polyvinyl chloride process for preparing resins and existed using the purpose of the invention
The phosphite of polyalcohol, and the partly-hydrolysed polyethylene with low saponification degree are added in the aqueous solution in suspension polymerisation
Alcohol, prepares the fabulous resin of the transparency after shaping. CONSTITUTION:When vinyl chloride or a vinyl
monomer containing vinyl chloride is subjected to suspension polymerization
in an aqueous medium in the presence of a partially saponified PVA having a
low degree of saponification, for example, a degree of saponification of 20-
75mol%, and preferably having a degree of polymerization of 150-750 to
produce the title resin, a phosphite of a polyhydric alcohol, preferably
having a molecular weight of 550 or more and a P content of 6wt.% or more
[eg, bis(nonylphenyl)pentaerythritol diphosphite] in an amount of 0.005-
0.3wt.% based on the title resin is added to the reaction mixture and/or the
produced resin separated from the reaction mixture at least one step before,
during or after the polymerization.
Japan Patent JP6172407 provides a kind of method for preparing Corvic, is in order in aqueous phase using the invention
Middle addition polyethylene oxide, a kind of oil-soluble polymerization initiator and a kind of metal salt suspension polymerized vinyl chloride base monomer, polymerization
Stable, the polyvinyl chloride transparent of generation is good, can prevent inside reactor fouling.
United States Patent (USP) US6340729 provides a kind of chloroethylene polymerization technique of use azanol, and the invention is using single
VCM or VCM and other vinyl monomers mixture suspension polymerisation in aqueous phase technique, polymerization draws
Hair agent is at least selected from：One in dialkyl peroxydicarbonates, peroxidating-tert- alkanoate or diacyl peroxide
Kind, monosubstituted or disubstituted azanol is used as terminator.Color and heat endurance that so obtained resin has had.
It is by component used in suspension polymerization of VC system more than in terms of domestic and international disclosed Patent
Adjustment, come improve Corvic whiteness, the transparency or heat endurance.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method for improving polyvinyl chloride resin ageing whiteness, to improve PVC
The heat endurance and processing stability of resin.
A kind of method for improving polyvinyl chloride resin ageing whiteness of the present invention, it is characterised in that be the increasing to being added in PVC slurries
Tough latex carries out anti-aging processing, and the anti-aging processing method of toughness reinforcing latex is by consolidating through emulsifier at a certain temperature
State hindered phenol age resistor is added in toughness reinforcing latex and is well mixed.
The core of the present invention is exactly to carry out anti-aging processing to toughness reinforcing latex using Hinered phenols solid-state, is subsequently used for toughness reinforcing
The preparation of type polyvinyl chloride resin.
To improve the heat endurance and processing stability of toughened PVC resin, a kind of raising polyvinyl chloride resin that the present invention is provided
The method of ageing whiteness, specific step is：From dodecyl sodium sulfate（Emulsifying agent A）With neopelex (breast
Agent B) two kinds of compounds, emulsifying agent A, solid-state hindered phenol antioxidant A and emulsifying agent B are compounded by a certain percentage, then added
It is placed on after suitable quantity of water in water bath with thermostatic control, temperature control is higher than the temperature of antioxidant A fusing point, and is stirred, and treats that age resistor is complete
It is added in toughness reinforcing glue latex, and is stirred after fully dissolved, anti-old processing is carried out to NBR latex.Handled using anti-aging
Toughness reinforcing latex according to known technique technique carry out flocculation toughening PVC resin preparation.
The present invention is applied to that PVC can be carried out using water-based latex the system of various property modifications, such as uses MBS latex
Improvement to PVC anti-impacts, processability；NBR latex is to modification of PVC toughness etc..Toughness reinforcing can be effectively improved with the method for the present invention
The ageing whiteness of type polyvinyl chloride resin, effectively improves the heat endurance and processing stability of toughened PVC resin.The core of the present invention
It is exactly that anti-aging processing is carried out to toughness reinforcing latex using Hinered phenols solid-state age resistor, is subsequently used for the system of toughened PVC resin
It is standby.
The anti-aging method of toughness reinforcing latex, its formula is as follows（Mass fraction）：
NBR latex（In terms of solid content） 100
Solid-state hindered phenol age resistor 3 ~ 5
Emulsifying agent A 0.67 ~ 2
Emulsifying agent B 3 ~ 9
Deionized water 20 ~ 50
Acrylonitrile content is 30 ~ 40%, solid content >=40%, the NBR latex of the degree of cross linking >=70% in described toughness reinforcing latex.
Specifically preparation technology is：
（1）Emulsifying agent A, solid-state hindered phenol antioxidant A and emulsifying agent B are weighed in the ratio to be positioned in beaker, are added appropriate
Water, heats using water bath with thermostatic control and starts stirring.
（2）The emulsification system temperature is（60~90）± 5 DEG C, preferred system temperature is（70~80）±5℃.
（3）The mixing speed of the emulsification system is 100 ~ 400 minutes/turns, preferably 200 ~ 300 minutes/turn.
（4）Weigh toughness reinforcing latex.
（5）After after solid-state antioxidant A completely emulsification, emulsion is poured into toughness reinforcing latex and starts stirring.
（6）The speed of agitator of the preventing aging system is 100 ~ 400 minutes/turns, preferably 200 ~ 300 minutes/turn.Stirring 3 ~
It is standby after 5 minutes.
The toughness reinforcing latex that the present invention is handled by anti-aging is added in PVC slurries, and toughness reinforcing is prepared in the presence of flocculant
Type polyvinyl chloride resin.Toughened PVC resin prepared by the toughness reinforcing latex after being handled using anti-aging, its ageing whiteness is greatly improved,
Effectively increase the heat endurance and processing stability of toughened PVC resin.
Embodiment
With reference to embodiment, the present invention is further illustrated, but and is not so limited the present invention.
The anti-aging formula such as table 1 of toughness reinforcing latex：
The embodiment basic recipe of table 1
First two kinds of emulsifying agents of application carry out emulsification treatment, breast to antioxidant A in a heated condition according to the method described in the present invention
Antioxidant A emulsion after change carries out anti-aging processing to toughness reinforcing latex, is subsequently used for the preparation of toughening PVC resin.
The performance comparison of four embodiment flocculation toughening PVC resins is shown in Table 2.
With the increase of aging inhibitor dosage, the ageing whiteness of toughened resin is stepped up, and has reached that suspension pvc resin is excellent
It is that can reach preferably to prevent old effect that 2g solid-state hindered phenol age resistor is added in the level of level product, 50g NBR latexes.Toughness reinforcing latex
The ageing whiteness of the polyvinyl chloride resin prepared after being handled through the anti-aging of Hinered phenols solid-state age resistor can be effectively improved.
Claims (5)
1. a kind of method for improving polyvinyl chloride resin ageing whiteness, it is characterised in that entered to the toughness reinforcing latex being added in PVC slurries
Row anti-aging is handled, and the anti-aging processing method of toughness reinforcing latex is by the solid-state hindered phenol through emulsifier at a certain temperature
Age resistor is added in toughness reinforcing latex and is well mixed.
2. the method according to claim 1 for improving polyvinyl chloride resin ageing whiteness, it is characterised in that solid-state hindered phenol age resistor
With emulsifying agent A, emulsifying agent B mixtures, it is placed on after then adding suitable quantity of water in water bath with thermostatic control, temperature control is higher than solid-state hindered phenol
The temperature of age resistor fusing point, is stirred emulsification, obtains the solid-state age resistor through emulsifier, the solid-state through emulsifier
Age resistor is added in toughness reinforcing latex, and the mass fraction of each component is：Toughness reinforcing latex（In terms of solid content）100th, solid-state hindered phenol
Age resistor 3 ~ 5, emulsifying agent A 0.67 ~ 2, emulsifying agent B 3 ~ 9, wherein deionized water 20 ~ 50, emulsifying agent A are dodecyl sodium sulfonate
Sodium, emulsifying agent B is neopelex.
3. the method according to claim 2 for improving polyvinyl chloride resin ageing whiteness, it is characterised in that emulsification system temperature is 60
~ 90 DEG C, the mixing speed of emulsification system is 100 ~ 400 minutes/turns.
4. the method according to claim 1 or 2 for improving polyvinyl chloride resin ageing whiteness, it is characterised in that the toughness reinforcing latex
For NBR latex.
5. the method according to claim 4 for improving polyvinyl chloride resin ageing whiteness, it is characterised in that the toughness reinforcing latex is third
Alkene nitrile content is 30 ~ 40%, solid content >=40%, the NBR latex of the degree of cross linking >=70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577253.4A CN107011589A (en) | 2016-07-21 | 2016-07-21 | A kind of method for improving polyvinyl chloride resin ageing whiteness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610577253.4A CN107011589A (en) | 2016-07-21 | 2016-07-21 | A kind of method for improving polyvinyl chloride resin ageing whiteness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107011589A true CN107011589A (en) | 2017-08-04 |
Family
ID=59439394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610577253.4A Pending CN107011589A (en) | 2016-07-21 | 2016-07-21 | A kind of method for improving polyvinyl chloride resin ageing whiteness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107011589A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735357A (en) * | 2008-11-06 | 2010-06-16 | 上海氯碱化工股份有限公司 | Method for improving ageing whiteness of vinyl chloride resin |
| CN101921440A (en) * | 2009-06-16 | 2010-12-22 | 中国石油化工股份有限公司 | Method for improving ageing whiteness of toughening type PVC (Polyvinyl Chloride) resin |
-
2016
- 2016-07-21 CN CN201610577253.4A patent/CN107011589A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735357A (en) * | 2008-11-06 | 2010-06-16 | 上海氯碱化工股份有限公司 | Method for improving ageing whiteness of vinyl chloride resin |
| CN101921440A (en) * | 2009-06-16 | 2010-12-22 | 中国石油化工股份有限公司 | Method for improving ageing whiteness of toughening type PVC (Polyvinyl Chloride) resin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9156920B2 (en) | Process for the preparation of an aqueous emulsifier-stabilized vinyl acetate-ethylene copolymer dispersion with fine particle size | |
| US4617362A (en) | Inverse emulsion polymers with improved incorporation of diallyldimethylammonium chloride | |
| US5185395A (en) | AMPS copolymer emulsions with improved stability | |
| KR20060056938A (en) | Production of vinyl alcohol copolymers | |
| US6448330B1 (en) | Aqueous emulsion and process for producing the same | |
| CN104497192A (en) | Preparation method capable of rapidly dissolving PVA resin | |
| KR20080049974A (en) | Method for preparing paste vinylchloride resin for glove | |
| US3375238A (en) | Process for suspension polymerization of vinyl chloride | |
| KR950006125B1 (en) | Colloidal stable vinyl halide polymerization with mercaptan cain transfer agents | |
| WO2008035929A1 (en) | Acrylic copolymer for processing aid of vinyl chloride resin composition, method for preparing the same and vinyl chloride resin composition containing the same | |
| CN101921440B (en) | Method for improving ageing whiteness of toughening type PVC (Polyvinyl Chloride) resin | |
| KR20090020237A (en) | Process for vinyl chloride polymer by addition of water-soluble initiator | |
| CN107011589A (en) | A kind of method for improving polyvinyl chloride resin ageing whiteness | |
| CN103951790A (en) | Vinyl acetate emulsion and preparation process thereof | |
| CN107011588A (en) | A kind of method for improving polyvinyl chloride resin ageing whiteness | |
| CN106893159A (en) | A kind of preparation method of ageing whiteness toughening PVC resin high | |
| CN105273119B (en) | A kind of preparation method of high degree of polymerization of polyvinyl chloride resin | |
| KR101508037B1 (en) | Method of preparing water-resistant vinylchloride resin | |
| US8642698B2 (en) | Copolymerizable (meth)acrylic acid esters | |
| US2534108A (en) | Process for copolymerizing monomers having different polymerization rates | |
| EP0243820A2 (en) | Low molecular weight copolymers of vinyl halide/vinyl acetate produced by aqueous polymerization | |
| CN107686712A (en) | A kind of glue compound method | |
| JPH02265908A (en) | Production of conjugated diene copolymer | |
| KR101424879B1 (en) | Viscosity reducing agent for paste vinyl chloride resins and and method for controlling viscosity of paste vinyl chloride resin using thereof | |
| KR20210034418A (en) | preparation method of vinyl chloride-based polymer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170804 |