CN109836532A - A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof - Google Patents
A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof Download PDFInfo
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- CN109836532A CN109836532A CN201910160254.2A CN201910160254A CN109836532A CN 109836532 A CN109836532 A CN 109836532A CN 201910160254 A CN201910160254 A CN 201910160254A CN 109836532 A CN109836532 A CN 109836532A
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Abstract
The present invention relates to PVC processing aid technical field, a kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof；Include 100-120 parts of distilled water, 20-30 parts of polymer monomer mixtures, 1-4 parts of molecular weight regulators, 2-6 parts of emulsifiers, 1-2 parts of adjuvants, 1-3 parts of initiators, 1-3 parts of buffer solvents, preparation process the following steps are included: (1) monomer pre-emulsion preparation；(2) polymerization of lotion；(3) preparation of the PVC melt reinforcing agent of super high molecular weight.Compared with traditional regulator (ACR), the PVC melt reinforcing agent of super high molecular weight prepared by the present invention has the compatibility more excellent with PVC, is capable of the mechanical property of effective Reinforced PVC；In molding process, the uniformity of PVC melt can be more effectively improved, thus the surface homogeneity for bringing product splendid；The usage amount of the melt strength of PVC can be dramatically increased, and be effectively reduced in PVC process energy consumption and traditional regulator；Its dosage is the 30wt.%-60wt.% of tradition ACR regulator dosage, effectively compared with low PVC cost of material.
Description
Technical field
The invention belongs to PVC processing aid technical fields, and in particular to a kind of PVC melt reinforcing agent of super high molecular weight and
Preparation method.
Background technique
PVC is one of big general-purpose plastics in the world the most frequently used five, in recent years, with science and technology and economic rapid development,
PVC product usage amount is increased every year with 21% or more speed, has reached 7,500,000 tons in China's PVC annual output in 2005, and
PVC dosage in 2007 will be more than 10,000,000 tons.However, the demand of PVC quickly increases, but the processing of PVC is also to deposit
In many problems, e.g., PVC melt poor ductility, it is easily broken to easily lead to melt, promotes PVC product rough surface, tarnish
And the problems such as sharkskin.Therefore, it generally requires that processing aid is added when PVC is processed, to improve the low problem of its melt strength.But
The auxiliary agent for the Reinforced PVC melt strength sold currently on the market, although can enhance to a certain extent, what it enhanced has
Limit, additional amount is more, and the cost is relatively high, further, since the auxiliary agent being added is more, affects the mechanical property of PVC product,
Simultaneously for compared with low-density plank preparation more difficulty, the publication of bubble is influenced.
In view of the above problems, the PVC melt reinforcing agent and preparation method thereof for designing a kind of super high molecular weight is mesh
Needed for preceding industry.
Summary of the invention
The technical problem to be solved by the present invention is to, the present invention provide it is a kind of can effective Reinforced PVC mechanical property superelevation
PVC melt reinforcing agent of molecular weight and preparation method thereof.
The technical solution adopted by the present invention is that: a kind of PVC melt reinforcing agent of super high molecular weight includes according to mass fraction
There are 100-120 parts of distilled water, 20-30 parts of polymer monomer mixture, 1-4 parts of molecular weight regulator, 2-6 parts of emulsification
Agent, 1-2 parts of adjuvant, 1-3 parts of initiator, 1-3 parts of buffer solvent.
The polymer monomer mixture is the methyl methacrylate that mass fraction is 10-20 parts, 4-6 parts of methyl
Butyl acrylate, 5-10 parts of hydroxy-ethyl acrylate, 6-9 parts of acrylic acid, the chloro- 2- butylene of 5-8 parts of 1-, 10-15 parts of 2-
The mixture of chloro- 1- butylene.
The molecular weight regulator is the fourth dodecane of the lauryl mercaptan that mass fraction is 20-30 parts, 10-15 parts
Base mercaptan, 6-10 parts of undecyl mercaptan, 5-10 parts of mixture.
The emulsifier is the dodecyl sodium sulfate that mass fraction is 10-15 parts, 4-8 parts of dodecyl sodium sulfonate
The sodium laurate, 4-8 parts of mixture of potassium, 3-6 parts CO-436,5-8 part.
The adjuvant is the ethylene glycol that mass fraction is 6-8 parts, 3-5 parts of octanol, 4-8 parts of hexanol, 1-3 parts
Polyvinyl alcohol is added to the mixer the mixture obtained after mixing.
The initiator is the mixture of the sodium peroxydisulfate that mass parts are 1-3 parts and 10-20 parts of distilled water.
The buffer solvent are as follows: by mass fraction be 3-4 parts of sodium bicarbonate, 1-3 parts of sodium dihydrogen phosphate, 1-2 parts
Sodium carbonate, 30-40 parts of distilled water mixture.
The reducing agent is the sodium hydrogensulfite, 1-2 parts of sodium polysulfide, 20-30 parts of steaming that mass fraction is 2-3 parts
The mixture of distilled water.
A kind of preparation method of the PVC melt reinforcing agent of super high molecular weight, comprising the following steps:
(1) preparation of monomer pre-emulsion
Distilled water, 20-30 parts of polymer monomer mixture, 1-4 parts of molecular weight by mass fraction for 100-120 parts
Regulator, 2-6 parts of emulsifier, 1-2 parts of adjuvant, 1-3 parts of initiator, 1-3 parts of buffer solvent are added in reaction kettle,
After carrying out high-speed stirred 1-2 hours at normal temperature, carries out ultrasound 20-30 minutes, be then taken out and be placed in complementary tank
It is sealed preservation, obtains monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, by temperature of reaction kettle control
For system at 60-70 DEG C, mixing speed carries out reaction 2-3 hours under the conditions of being 200-300rpm, will be in step (1) after fully reacting
Remaining 4/5 monomer pre-emulsion of preparation is added in the constant pressure buret in the left side of reaction kettle, then with 5-10 drop/min
Speed be added dropwise, after being all added dropwise completely in 3-4 hours, 1-3 part of reducing agent is added on the right side of addition reaction kettle
In constant pressure buret, then it is added dropwise with 2-3 drop/min speed, after being added dropwise completely, progress isothermal reaction 6-8 hours, instead
80-85 DEG C is raised the temperature to after answering completely, carries out reaction 3-4 hours, after fully reacting, stops heating, naturally cools to room
Material is taken out after temperature, obtains milky white liquid；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 100-120 DEG C, it is dry after by its into
Row packaging, obtains the PVC melt reinforcing agent of super high molecular weight.
The beneficial effects of the present invention are:
(1) compared with traditional regulator (ACR), the PVC melt reinforcing agent of super high molecular weight prepared by the present invention have with
PVC more excellent compatibility is capable of the mechanical property of effective Reinforced PVC.
(2) in molding process, the PVC melt reinforcing agent of super high molecular weight prepared by the present invention can be improved more effectively
The uniformity of PVC melt, thus the surface homogeneity for bringing product splendid.
(3) the PVC melt reinforcing agent of super high molecular weight prepared by the present invention can dramatically increase the melt strength of PVC, and have
Effect reduces the usage amount of energy consumption and traditional regulator in PVC process.
(4) dosage of the PVC melt reinforcing agent of super high molecular weight prepared by the present invention is tradition ACR regulator dosage
30wt.%-60wt.%, effectively compared with low PVC cost of material.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below in conjunction with experimental data, to this
The preferred embodiment of invention is described in detail, to facilitate the technical staff to understand.
A kind of PVC melt reinforcing agent of super high molecular weight of the present invention, includes 100-120 parts of distillation according to mass fraction
Water, 20-30 parts of polymer monomer mixture, 1-4 parts of molecular weight regulator, 2-6 parts of emulsifier, 1-2 parts of adjuvant,
1-3 parts of initiator, 1-3 parts of buffer solvent.
The polymer monomer mixture is the methyl methacrylate that mass fraction is 10-20 parts, 4-6 parts of methyl
Butyl acrylate, 5-10 parts of hydroxy-ethyl acrylate, 6-9 parts of acrylic acid, the chloro- 2- butylene of 5-8 parts of 1-, 10-15 parts of 2-
The mixture of chloro- 1- butylene.
The molecular weight regulator is the fourth dodecane of the lauryl mercaptan that mass fraction is 20-30 parts, 10-15 parts
Base mercaptan, 6-10 parts of undecyl mercaptan, 5-10 parts of mixture.
The emulsifier is the dodecyl sodium sulfate that mass fraction is 10-15 parts, 4-8 parts of dodecyl sodium sulfonate
The sodium laurate, 4-8 parts of mixture of potassium, 3-6 parts CO-436,5-8 part.
The adjuvant is the ethylene glycol that mass fraction is 6-8 parts, 3-5 parts of octanol, 4-8 parts of hexanol, 1-3 parts
Polyvinyl alcohol is added to the mixer the mixture obtained after mixing.
The initiator is the mixture of the sodium peroxydisulfate that mass parts are 1-3 parts and 10-20 parts of distilled water.
The buffer solvent are as follows: by mass fraction be 3-4 parts of sodium bicarbonate, 1-3 parts of sodium dihydrogen phosphate, 1-2 parts
Sodium carbonate, 30-40 parts of distilled water mixture.
The reducing agent is the sodium hydrogensulfite, 1-2 parts of sodium polysulfide, 20-30 parts of steaming that mass fraction is 2-3 parts
The mixture of distilled water.
Embodiment 1
A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof, including as following formula and step:
(1) preparation of monomer pre-emulsion
Distilled water, 30 parts of polymer monomer mixture, 3 parts of molecular weight regulator, 2 by mass fraction for 110 parts
The emulsifier, 1 part of adjuvant, 3 parts of initiator, 2 parts of buffer solvent of part are added in reaction kettle, carry out high speed at normal temperature
After stirring 2 hours, ultrasound is carried out 20 minutes, be then taken out to be placed in complementary tank and be sealed preservation, which is
Monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, by temperature of reaction kettle control
For system at 65 DEG C, mixing speed carries out reaction 3 hours under the conditions of being 300rpm, will the middle residue prepared of step (1) after fully reacting
4/5 monomer pre-emulsion be added reaction kettle left side constant pressure buret in, then dripped with 10 drops/min speed
Add, after being all added dropwise completely in 3 hours, 2 parts of reducing agent is added in the constant pressure buret on the right side of reaction kettle, then
It is added dropwise with 3 drops/min speed, after being added dropwise completely, carries out isothermal reaction 8 hours, 80 are raised the temperature to after fully reacting
DEG C, reaction 3 hours is carried out, after fully reacting, stops heating, material is taken out after cooled to room temperature, obtains milky liquid
Body；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 120 DEG C, is wrapped after dry
Dress, the substance are the PVC melt reinforcing agent of super high molecular weight.
The polymer monomer mixture are as follows: by mass fraction be 15 parts of methyl methacrylate, 4 parts of methyl-prop
The chloro- 1- butylene of the chloro- 2- butylene of olefin(e) acid butyl ester, 8 parts of hydroxy-ethyl acrylate, 9 parts of acrylic acid, 7 parts of 1-, 10 parts of 2- carries out
The substance obtained after mixing, the substance are polymer monomer mixture.
The molecular weight regulator are as follows: by mass fraction be 25 parts of lauryl mercaptan, 10 parts of fourth dodecyl
The substance that mercaptan, 8 parts of undecyl mercaptan, 10 parts of ten alkyl hydrosulfides obtain after mixing under the conditions of 50 DEG C, the object
Matter is molecular weight regulator.
The emulsifier are as follows: by mass fraction be 12 parts of dodecyl sodium sulfate, 8 parts of potassium dodecanesulfonate, 4
The substance that the CO-436,5 parts of sodium laurate, 6 parts of potassium laurate of part obtain after mixing under the conditions of 60 DEG C, the substance
For emulsifier.
The adjuvant are as follows: by mass fraction be 7 parts of ethylene glycol, 5 parts of octanol, 6 parts of hexanol, 1 part of poly- second
Enol is added to the mixer the substance obtained after mixing, which is adjuvant.
The initiator are as follows: obtain after mixing for 2 parts of sodium peroxydisulfate and 20 parts of distilled water by mass parts
The substance arrived, the substance are initiator.
The buffer solvent are as follows: by mass fraction be 3 parts of sodium bicarbonate, 1 part of sodium dihydrogen phosphate, 2 parts of carbonic acid
The substance that sodium, 40 parts of distilled water are obtained after mixing, the substance are buffer solvent.
The reducing agent are as follows: by mass fraction be 2 parts of sodium hydrogensulfite, 2 parts of sodium polysulfide, 25 parts of distilled water
The substance obtained after mixing, the substance are reducing agent.
Embodiment 2
A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof, including as following formula and step:
(1) preparation of monomer pre-emulsion
Distilled water, 25 parts of polymer monomer mixture, 4 parts of molecular weight regulator, 4 by mass fraction for 120 parts
The emulsifier, 2 parts of adjuvant, 2 parts of initiator, 3 parts of buffer solvent of part are added in reaction kettle, carry out high speed at normal temperature
After stirring 2 hours, ultrasound is carried out 20 minutes, be then taken out to be placed in complementary tank and be sealed preservation, which is
Monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, by temperature of reaction kettle control
For system at 70 DEG C, mixing speed carries out reaction 2 hours under the conditions of being 250rpm, will the middle residue prepared of step (1) after fully reacting
4/5 monomer pre-emulsion be added reaction kettle left side constant pressure buret in, then dripped with 8 drops/min speed
Add, after being all added dropwise completely in 3 hours, 2 parts of reducing agent is added in the constant pressure buret on the right side of reaction kettle, then
It is added dropwise with 3 drops/min speed, after being added dropwise completely, carries out isothermal reaction 8 hours, 85 are raised the temperature to after fully reacting
DEG C, reaction 3-4 hours is carried out, after fully reacting, stops heating, material is taken out after cooled to room temperature, obtains milky
Liquid；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 110 DEG C, is wrapped after dry
Dress, the substance are the PVC melt reinforcing agent of super high molecular weight.
The polymer monomer mixture are as follows: by mass fraction be 20 parts of methyl methacrylate, 5 parts of methyl-prop
The chloro- 2- butylene of olefin(e) acid butyl ester, 10 parts of hydroxy-ethyl acrylate, 7 parts of acrylic acid, 8 parts of 1-, the chloro- 1- butylene of 12 parts of 2- into
The substance that row obtains after mixing, the substance are polymer monomer mixture.
The molecular weight regulator are as follows: by mass fraction be 30 parts of lauryl mercaptan, 12 parts of fourth dodecyl
The substance that mercaptan, 10 parts of undecyl mercaptan, 8 parts of ten alkyl hydrosulfides obtain after mixing under the conditions of 50 DEG C, the object
Matter is molecular weight regulator.
The emulsifier are as follows: by mass fraction be 10 parts of dodecyl sodium sulfate, 6 parts of potassium dodecanesulfonate, 3
The substance that the CO-436,7 parts of sodium laurate, 8 parts of potassium laurate of part obtain after mixing under the conditions of 60 DEG C, the substance
For emulsifier.
The adjuvant are as follows: by mass fraction be 7 parts of ethylene glycol, 5 parts of octanol, 6 parts of hexanol, 1 part of poly- second
Enol is added to the mixer the substance obtained after mixing, which is adjuvant.
The initiator are as follows: obtain after mixing for 2 parts of sodium peroxydisulfate and 15 parts of distilled water by mass parts
The substance arrived, the substance are initiator.
The buffer solvent are as follows: by mass fraction be 4 parts of sodium bicarbonate, 2 parts of sodium dihydrogen phosphate, 1 part of carbonic acid
The substance that sodium, 35 parts of distilled water are obtained after mixing, the substance are buffer solvent.
The reducing agent are as follows: by mass fraction be 3 parts of sodium hydrogensulfite, 1 part of sodium polysulfide, 25 parts of distilled water
The substance obtained after mixing, the substance are reducing agent.
Embodiment 3
A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof, including as following formula and step:
(1) preparation of monomer pre-emulsion
Distilled water, 20 parts of polymer monomer mixture, 1 part of molecular weight regulator, 2 by mass fraction for 100 parts
The emulsifier, 1 part of adjuvant, 1 part of initiator, 1 part of buffer solvent of part are added in reaction kettle, carry out high speed at normal temperature
After stirring 1 hour, ultrasound is carried out 20 minutes, be then taken out to be placed in complementary tank and be sealed preservation, which is
Monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, by temperature of reaction kettle control
For system at 60 DEG C, mixing speed carries out reaction 2 hours under the conditions of being 200-300rpm, after fully reacting, by what is prepared in step (1)
Remaining 4/5 monomer pre-emulsion is added in the constant pressure buret in the left side of reaction kettle, then with the progress of 5 drops/min speed
It is added dropwise, after being all added dropwise completely in 3 hours, 1 part of reducing agent is added in the constant pressure buret on the right side of reaction kettle, so
It is added dropwise afterwards with 2 drops/min speed, after being added dropwise completely, carries out isothermal reaction 6 hours, raised the temperature to after fully reacting
80 DEG C, reaction 3 hours is carried out, after fully reacting, stops heating, material is taken out after cooled to room temperature, obtains milky
Liquid；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 100 DEG C, is wrapped after dry
Dress, the substance are the PVC melt reinforcing agent of super high molecular weight.
The polymer monomer mixture are as follows: by mass fraction be 10 parts of methyl methacrylate, 4 parts of methyl-prop
The chloro- 1- butylene of the chloro- 2- butylene of olefin(e) acid butyl ester, 5 parts of hydroxy-ethyl acrylate, 6 parts of acrylic acid, 5 parts of 1-, 10 parts of 2- carries out
The substance obtained after mixing, the substance are polymer monomer mixture.
The molecular weight regulator are as follows: by mass fraction be 20 parts of lauryl mercaptan, 10 parts of fourth dodecyl
The substance that mercaptan, 6 parts of undecyl mercaptan, 5 parts of ten alkyl hydrosulfides obtain after mixing under the conditions of 50 DEG C, the substance
For molecular weight regulator.
The emulsifier are as follows: by mass fraction be 10 parts of dodecyl sodium sulfate, 4 parts of potassium dodecanesulfonate, 3
The substance that the CO-436,5 parts of sodium laurate, 4 parts of potassium laurate of part obtain after mixing under the conditions of 60 DEG C, the substance
For emulsifier.
The adjuvant are as follows: by mass fraction be 6 parts of ethylene glycol, 3 parts of octanol, 4 parts of hexanol, 1 part of poly- second
Enol is added to the mixer the substance obtained after mixing, which is adjuvant.
The initiator are as follows: obtain after mixing for 1 part of sodium peroxydisulfate and 10 parts of distilled water by mass parts
The substance arrived, the substance are initiator.
The buffer solvent are as follows: by mass fraction be 3 parts of sodium bicarbonate, 1 part of sodium dihydrogen phosphate, 1 part of carbonic acid
The substance that sodium, 30 parts of distilled water are obtained after mixing, the substance are buffer solvent.
The reducing agent are as follows: by mass fraction be 2 parts of sodium hydrogensulfite, 1 part of sodium polysulfide, 20 parts of distilled water
The substance obtained after mixing, the substance are reducing agent.
Embodiment 4
A kind of PVC melt reinforcing agent of super high molecular weight and preparation method thereof, including as following formula and step:
(1) preparation of monomer pre-emulsion
Distilled water, 30 parts of polymer monomer mixture, 4 parts of molecular weight regulator, 6 by mass fraction for 120 parts
The emulsifier, 2 parts of adjuvant, 3 parts of initiator, 3 parts of buffer solvent of part are added in reaction kettle, carry out high speed at normal temperature
After stirring 2 hours, ultrasound is carried out 30 minutes, be then taken out to be placed in complementary tank and be sealed preservation, which is
Monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, by temperature of reaction kettle control
For system at 70 DEG C, mixing speed carries out reaction 3 hours under the conditions of being 300rpm, will the middle residue prepared of step (1) after fully reacting
4/5 monomer pre-emulsion be added reaction kettle left side constant pressure buret in, then dripped with 10 drops/min speed
Add, after being all added dropwise completely in 4 hours, 3 parts of reducing agent is added in the constant pressure buret on the right side of reaction kettle, then
It is added dropwise with 3 drops/min speed, after being added dropwise completely, carries out isothermal reaction 8 hours, 85 are raised the temperature to after fully reacting
DEG C, reaction 4 hours is carried out, after fully reacting, stops heating, material is taken out after cooled to room temperature, obtains milky liquid
Body；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 120 DEG C, is wrapped after dry
Dress, the substance are the PVC melt reinforcing agent of super high molecular weight.
The polymer monomer mixture are as follows: by mass fraction be 20 parts of methyl methacrylate, 6 parts of methyl-prop
The chloro- 2- butylene of olefin(e) acid butyl ester, 10 parts of hydroxy-ethyl acrylate, 9 parts of acrylic acid, 8 parts of 1-, the chloro- 1- butylene of 15 parts of 2- into
The substance that row obtains after mixing, the substance are polymer monomer mixture.
The molecular weight regulator are as follows: by mass fraction be 30 parts of lauryl mercaptan, 15 parts of fourth dodecyl
The substance that mercaptan, 10 parts of undecyl mercaptan, 10 parts of ten alkyl hydrosulfides obtain after mixing under the conditions of 50 DEG C, the object
Matter is molecular weight regulator.
The emulsifier are as follows: by mass fraction be 15 parts of dodecyl sodium sulfate, 8 parts of potassium dodecanesulfonate, 6
The substance that the CO-436,8 parts of sodium laurate, 8 parts of potassium laurate of part obtain after mixing under the conditions of 60 DEG C, the substance
For emulsifier.
The adjuvant are as follows: by mass fraction be 8 parts of ethylene glycol, 5 parts of octanol, 8 parts of hexanol, 3 parts of poly- second
Enol is added to the mixer the substance obtained after mixing, which is adjuvant.
The initiator are as follows: obtain after mixing for 3 parts of sodium peroxydisulfate and 20 parts of distilled water by mass parts
The substance arrived, the substance are initiator.
The buffer solvent are as follows: by mass fraction be 4 parts of sodium bicarbonate, 3 parts of sodium dihydrogen phosphate, 2 parts of carbonic acid
The substance that sodium, 40 parts of distilled water are obtained after mixing, the substance are buffer solvent.
The reducing agent are as follows: by mass fraction be 3 parts of sodium hydrogensulfite, 2 parts of sodium polysulfide, 30 parts of distilled water
The substance obtained after mixing, the substance are reducing agent.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from defined by claims of the present invention.
Claims (9)
1. a kind of PVC melt reinforcing agent of super high molecular weight, which is characterized in that according to mass fraction include 100-120 parts
Distilled water, 20-30 parts of polymer monomer mixture, 1-4 parts of molecular weight regulator, 2-6 parts of emulsifier, 1-2 parts auxiliary
Auxiliary agent, 1-3 parts of initiator, 1-3 parts of buffer solvent.
2. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the polymerization
Object monomer mixture is the methyl methacrylate that mass fraction is 10-20 parts, 4-6 parts of butyl methacrylate, 5-10 parts
Hydroxy-ethyl acrylate, 6-9 parts of acrylic acid, the chloro- 2- butylene of 5-8 parts of 1-, the chloro- 1- butylene of 10-15 parts of 2- mixture.
3. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the molecule
Amount regulator is the lauryl mercaptan, 10-15 parts of fourth lauryl mercaptan, the ten of 6-10 parts that mass fraction is 20-30 parts
One alkyl hydrosulfide, 5-10 parts of mixture.
4. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the emulsification
Agent is the dodecyl sodium sulfate, 4-8 parts of potassium dodecanesulfonate, 3-6 parts CO-436,5-8 that mass fraction is 10-15 parts
The sodium laurate, 4-8 parts of mixture of part.
5. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the auxiliary
Agent is the ethylene glycol that mass fraction is 6-8 parts, 3-5 parts of octanol, 4-8 parts of hexanol, 1-3 parts of polyvinyl alcohol addition mixing machine
The middle mixture obtained after mixing.
6. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the initiation
Agent is the mixture of the sodium peroxydisulfate that mass parts are 1-3 parts and 10-20 parts of distilled water.
7. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the buffering
Solvent are as follows: by mass fraction be 3-4 parts of sodium bicarbonate, 1-3 parts of sodium dihydrogen phosphate, 1-2 parts of sodium carbonate, 30-40 parts
The mixture of distilled water.
8. a kind of PVC melt reinforcing agent of super high molecular weight according to claim 1, which is characterized in that the reduction
Agent is the mixture of the sodium hydrogensulfite that mass fraction is 2-3 parts, 1-2 parts of sodium polysulfide, 20-30 parts of distilled water.
9. a kind of preparation method of the PVC melt reinforcing agent of super high molecular weight according to any one of claims 1 to 8,
It is characterized in that, comprising the following steps:
(1) preparation of monomer pre-emulsion
Distilled water, 20-30 parts of polymer monomer mixture, 1-4 parts of molecular-weight adjusting by mass fraction for 100-120 parts
Agent, 2-6 parts of emulsifier, 1-2 parts of adjuvant, 1-3 parts of initiator, 1-3 parts of buffer solvent are added in reaction kettle, normal
Temperature is lower carry out high-speed stirred 1-2 hour after, progress ultrasound 20-30 minutes is then taken out to be placed in complementary tank and carries out
It is sealed, obtains monomer pre-emulsion；
(2) polymerization of lotion
1/5 that the monomer pre-emulsion prepared in step (1) is taken its quality is added in reaction kettle, and temperature of reaction kettle control is existed
60-70 DEG C, mixing speed carries out reaction 2-3 hours under the conditions of being 200-300rpm, after fully reacting, by preparation in step (1)
Remaining 4/5 monomer pre-emulsion be added reaction kettle left side constant pressure buret in, then with 5-10 drop/min speed
Degree is added dropwise, and after being all added dropwise completely in 3-4 hours, the constant pressure on the right side of reaction kettle is added in 1-3 parts of reducing agent
It in buret, is then added dropwise with 2-3 drop/min speed, after being added dropwise completely, carries out isothermal reaction 6-8 hours, reacted
80-85 DEG C is raised the temperature to after complete, carries out reaction 3-4 hours, after fully reacting, stops heating, after cooled to room temperature
Material is taken out, milky white liquid is obtained；
(3) preparation of the PVC melt reinforcing agent of super high molecular weight
The milky white liquid prepared in step (2) is spray-dried under the conditions of 100-120 DEG C, is wrapped after dry
Dress, obtains the PVC melt reinforcing agent of super high molecular weight.
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