CN102952500A

CN102952500A - Preparation method of polrvinyl chloride resin sealant

Info

Publication number: CN102952500A
Application number: CN2011102458523A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-25
Filing date: 2011-08-25
Publication date: 2013-03-06

Abstract

The invention discloses a preparation method of a polrvinyl chloride resin sealant and belongs to the field of chemical engineering. The preparation method comprises that powdery polrvinyl chloride resin, cyclohexanone, calcium stearate, talcum powder, asbestos fibers, di-n-hexyl phthalate, 4-chloro-o-phenylenediamine and diaminodiphenyl sulfone as raw materials undergo a reaction in a chemical reaction kettle as a reactor at an appropriate temperature for an appropriate time to produce the polrvinyl chloride resin sealant. The preparation method has the advantages that production processes are simple; and universal equipment is adopted. The polrvinyl chloride resin sealant obtained by the preparation method has strong adhesion, good heat resistance, good corrosion resistance, a fast drying rate after use, high hardness, strong adhesion and a low cost.

Description

A kind of preparation method of polyvinyl chloride (PVC) RESINS seal gum

Technical field

Product of the present invention belongs to chemical field, relates in particular to a kind of preparation method of polyvinyl chloride (PVC) RESINS seal gum.

Background technology

Polyvinyl chloride (PVC) RESINS is a kind of synthetic materials that is widely used in the world today, it is the thermoplastic resin that under the initiator effect, is polymerized by vinylchlorid, polyvinyl chloride has preferably mechanical property, excellent dielectric properties are arranged, but the poor stability to light and heat, without definite melting point, 80-85 ℃ begins to soften, 130 ℃ become the viscoelastic attitude, and 160-180 ℃ begins to change into viscous state, through long-time exposure in sunshine, will decompose and produce hydrogenchloride, and further autocatalytically is decomposed, and causes variable color, and physical and mechanical properties also descends rapidly, chemical stability reduces with the rising of use temperature, need in actual applications to add in addition other one-tenth and assign to strengthen its thermotolerance, toughness, ductility etc.; Polyvinyl chloride (PVC) RESINS can only be dissolved in the minority solvents such as pimelinketone, ethylene dichloride and tetrahydrofuran (THF), and is all stable to organic and mineral acid, alkali, salt.The raw material vinylchlorid of polyvinyl chloride (PVC) RESINS has abundant, ripe, the lower-price characteristic of manufacturing process of raw material sources, so that the production cost of polyvinyl chloride (PVC) RESINS is lower, now become the second largest resins for universal use that is only second in the world polyvinyl resin, main application is: can be used for making anti-corrosion pipeline, pipe fitting, transition pipeline, impeller pump and gas blower 1.; 2. because electrical insulation properties is good, can be used for making plug, socket, switch and cable; 3. polyvinyl chloride is used for making the plastics soft goods such as sandals, raincoat, toy, leatheroid, film, also can produce the plastics boardy products such as sheet material, door and window, pipeline and valve; 4. can be used for making tackiness agent, seal gum.Product of the present invention is a kind of polyvinyl chloride (PVC) RESINS seal gum, produce this product with Powdered polyvinyl chloride (PVC) RESINS, pimelinketone, calcium stearate, talcum powder, fibrous magnesium silicate, phthalic acid two is ester just, 4-chlorine O-Phenylene Diamine, diamino diphenyl sulfone is raw material, take chemical reaction kettle as reaction vessel, and be equipped with suitable temperature and the reaction times prepares seal gum, this preparation method's advantage is: production technique is simple, use general-purpose equipment, the seal gum of producing has preferably bounding force, thermotolerance, erosion resistance, fast drying after using, hardness is high, strong adhesion, cost is low.

Summary of the invention

The problem to be solved in the present invention provides the method that a kind of batch prepares the polyvinyl chloride (PVC) RESINS seal gum, sealing glue is take Powdered polyvinyl chloride (PVC) RESINS as major ingredient, take pimelinketone as solvent, other adds auxiliary material and produces seal gum, sealing glue has preferably bounding force, thermotolerance, erosion resistance, and fast drying after using, hardness height, strong adhesion, cost are low.The raw material that production sealing glue uses has: Powdered polyvinyl chloride (PVC) RESINS 35%-37%, pimelinketone 43%-45%, calcium stearate 5%, talcum powder 6%, fibrous magnesium silicate 3%, phthalic acid two be ester 2%, 4-chlorine O-Phenylene Diamine 2%, diamino diphenyl sulfone 2% just.

The present invention can be achieved through the following technical solutions:

A kind of preparation method of polyvinyl chloride (PVC) RESINS seal gum, its feature is made of following steps:

1. pimelinketone is sent into chemical reaction kettle, start stirrer, rotating speed is 30 rev/mins, and temperature is increased to about 60 ℃, adds slowly while stirring Powdered polyvinyl chloride (PVC) RESINS, stirs after 2 hours, adds calcium stearate, stirring reaction 1 hour.

2. keep temperature-resistant, continue to stir, add slowly talcum powder, stirring reaction adds fibrous magnesium silicate again after 0.3 hour, continued stirring reaction 0.5 hour.

3. the chemical reaction temperature in the kettle is transferred to 30 ℃, continue to stir, add slowly just ester of phthalic acid two, stirring reaction adds 4-chlorine O-Phenylene Diamine after 0.2 hour, stirring reaction added diamino diphenyl sulfone after 0.3 hour, continue stirring and stop after 0.5 hour stirring, the blowing packing gets product.

The invention has the beneficial effects as follows: the preparation method that a kind of polyvinyl chloride (PVC) RESINS seal gum is provided, this preparation method's technique is simple, the use general-purpose equipment, the seal gum of producing has preferably bounding force, thermotolerance, erosion resistance, and fast drying after using, hardness height, strong adhesion, cost are low.

Embodiment

Embodiment 1

Be that 35% pimelinketone is sent into chemical reaction kettle with accounting for total amount, start stirrer, rotating speed is 30 rev/mins, temperature is increased to about 60 ℃, add slowly while stirring that to account for total amount be 45% Powdered polyvinyl chloride (PVC) RESINS, stir after 2 hours, add that to account for total amount be 5% calcium stearate, stirring reaction 1 hour; Keep temperature-resistant, continue to stir, add slowly that to account for total amount be 6% talcum powder, stirring reaction adds after 0.3 hour that to account for total amount be 3% fibrous magnesium silicate again, continues stirring reaction 0.5 hour; The chemical reaction temperature in the kettle is transferred to 30 ℃, continue to stir, add slowly that to account for total amount be just ester of 2% phthalic acid two, stirring reaction adds after 0.2 hour that to account for total amount be 2% 4-chlorine O-Phenylene Diamine, stirring reaction adds after 0.3 hour that to account for total amount be 2% diamino diphenyl sulfone, continue stirring and stop after 0.5 hour stirring, the blowing packing gets product.

Embodiment 2

Be that 36% pimelinketone is sent into chemical reaction kettle with accounting for total amount, start stirrer, rotating speed is 30 rev/mins, temperature is increased to about 60 ℃, add slowly while stirring that to account for total amount be 44% Powdered polyvinyl chloride (PVC) RESINS, stir after 2 hours, add that to account for total amount be 5% calcium stearate, stirring reaction 1 hour; Keep temperature-resistant, continue to stir, add slowly that to account for total amount be 6% talcum powder, stirring reaction adds after 0.3 hour that to account for total amount be 3% fibrous magnesium silicate again, continues stirring reaction 0.5 hour; The chemical reaction temperature in the kettle is transferred to 30 ℃, continue to stir, add slowly that to account for total amount be just ester of 2% phthalic acid two, stirring reaction adds after 0.2 hour that to account for total amount be 2% 4-chlorine O-Phenylene Diamine, stirring reaction adds after 0.3 hour that to account for total amount be 2% diamino diphenyl sulfone, continue stirring and stop after 0.5 hour stirring, the blowing packing gets product.

Embodiment 3

Just account for total amount and be 37% pimelinketone and send into chemical reaction kettle, start stirrer, rotating speed is 30 rev/mins, temperature is increased to about 60 ℃, add slowly while stirring that to account for total amount be 43% Powdered polyvinyl chloride (PVC) RESINS, stir after 2 hours, add that to account for total amount be 5% calcium stearate, stirring reaction 1 hour; Keep temperature-resistant, continue to stir, add slowly that to account for total amount be 6% talcum powder, stirring reaction adds after 0.3 hour that to account for total amount be 3% fibrous magnesium silicate again, continues stirring reaction 0.5 hour; The chemical reaction temperature in the kettle is transferred to 30 ℃, continue to stir, add slowly that to account for total amount be just ester of 2% phthalic acid two, stirring reaction adds after 0.2 hour that to account for total amount be 2% 4-chlorine O-Phenylene Diamine, stirring reaction adds after 0.3 hour that to account for total amount be 2% diamino diphenyl sulfone, continue stirring and stop after 0.5 hour stirring, the blowing packing gets product.

Claims

1. the preparation method of a polyvinyl chloride (PVC) RESINS seal gum, it is characterized in that: take Powdered polyvinyl chloride (PVC) RESINS 35%-37%, pimelinketone 43%-45%, calcium stearate 5%, talcum powder 6%, fibrous magnesium silicate 3%, phthalic acid two just ester 2%, 4-chlorine O-Phenylene Diamine 2%, diamino diphenyl sulfone 2% as raw material, obtain finished product by following steps.

2. the preparation method of a kind of polyvinyl chloride (PVC) RESINS seal gum according to claim 1, the feature of its first step is: pimelinketone is sent into chemical reaction kettle, start stirrer, rotating speed is 30 rev/mins, temperature is increased to about 60 ℃, adds slowly while stirring Powdered polyvinyl chloride (PVC) RESINS, stir after 2 hours, add calcium stearate, stirring reaction 1 hour.

3. the preparation method of a kind of polyvinyl chloride (PVC) RESINS seal gum according to claim 1, the feature of its second step is: keep temperature-resistant, continue to stir, add slowly talcum powder, stirring reaction adds fibrous magnesium silicate again after 0.3 hour, continued stirring reaction 0.5 hour.

4. the preparation method of a kind of polyvinyl chloride (PVC) RESINS seal gum according to claim 1, the feature in its 3rd step is: the chemical reaction temperature in the kettle is transferred to 30 ℃, continue to stir, add slowly just ester of phthalic acid two, stirring reaction adds 4-chlorine O-Phenylene Diamine after 0.2 hour, stirring reaction added diamino diphenyl sulfone after 0.3 hour, continued to stir to stop after 0.5 hour stirring, and the blowing packing gets product.