CN1313532C - Rubber and plastic alloy glue and production thereof - Google Patents

Abstract

The present invention discloses a rubber plastic alloy glue and a production technique thereof. The production technology comprises the steps that PVC is puffed and plasticized by a banbury mixer and is plasticized by a blender mill. When the PVC is puffed, the components are PVCH200, DOP, di-salt, tri-salt, calcium stearate and barium stearate. The temperature of a puffing machine is set from 70 to 80 DEG C, and time is five minutes. During the banburing and the open mill mixing, the components are NBR, puffed PVC, 4010 and NBC. The temperature of the banbury mixer rises to 130 DEG C, and the materials are added in the banbury mixer. After the temperature of the banbury mixer rises to 145 DEG C, a valve for cooling water is opened. The materials are discharged after the banburing temperature reaches 150 DEG C and the time reaches 15 minutes, and the temperature of the blender mill rises to 130 DEG C. The roller spacing of the blender mill is 1mm. The glue plasticized by the banbury mixer is put in the blender mill and is tightly milled twice, and the plasticized glue is cooled and then piled. Because a unique formula and a unique technique are used, the rubber plastic alloy glue has the advantages of smoothness, no impurity, ozone resistance, high temperature resistance and good low temperature performance after the compounded glue is extruded.

Description

Rubber Plastic Alloy Glue And Production Technology

Technical field

The present invention relates to a kind of rubber and plastic alloy and production technique, particularly a kind ofly be used for rubber and plastic alloy and the production technique that oil pipe, fuel hose outer tube are extruded sizing material.

Background technology

At present the rubber and plastic alloy glue produced of China all is to be used for molded product, and generally when plasticizing adopts milling machine or screw rod to extrude to plastify, and its rubber unvulcanizate can not be used to extrude sizing material, and outward appearance is coarse because sizing material is extruded the back.Denomination of invention is the Chinese patent application (number of patent application: 98115829 of " have filling, solubilising and vulcanize improved multipolymer thermoplastic elastomeric combination ", the day for announcing: on January 26th, 2000) disclose and a kind ofly have filling, solubilising and vulcanize the combination of improved multipolymer thermoplastic elastomeric, belonged to the thermoplasticity rubber and plastic alloy (TPV or TPV-S) of the material modified filling of commixed type, solubilising.Solve with general, cheap material and modification cooperation thereof, produce low-cost new variety product.Its feature: select NR+BR/PP for use, PE, EVA and combination thereof constitute the special elastomer class.The inexpensive carboxylicesters rare earth wilkinite of independent system substitutes the white carbon black reinforcement and fills, and improves its activity and performance; Make compatibility and the structure properties of improving material along the anhydride modified esterification auxiliary agent of divinyl; Established the effective practicality of TPV-S method from technology.Another denomination of invention is the Chinese patent (patent No.: 93104811 of " modified polyvinyl chloride material of high-strength weather-proof and preparation method thereof ", the day for announcing: on November 2nd, 1994) disclose a kind of modified polyvinyl chloride (PVC) material of high-strength weather-proof, it is characterized in that material composition (parts by weight) is: polyvinyl chloride (loose type, K value 60～75) 100, phenolic antioxidant 0.2～0.5, phthalic ester plasticizer 40～60, epoxy soybean oil 2～5, liquid barium-zinc or calcium-zinc composite stabilizer 2～5, fatty acid lubricant 0.1～0.5, ammonia photostabilizer 0.1～0.4 is obstructed, benzotriazole light stabilizer 0.1～0.4, carbon black 0.5～1.0, color adaptation agent 0.1～0.3, surface-treated lime carbonate 15～30, smell conditioning agent 0.03～0.09, compound method, a, lime carbonate surface treatment: water-ground limestone is put into Hot mixer, be heated to certain temperature insulation appropriate time, add coupling agent and carry out surface treatment, discharging is stand-by after 10～20 minutes, b, PVC is mixed, PVC and phenolic antioxidant are put into Hot mixer, control flow velocity when being heated to 60～85 ℃, add stablizer and softening agent, stiffened ester acid and photostabilizer add treated lime carbonate and carbon black and color, the smell conditioning agent when treating that temperature is raised to 85～95 ℃ when temperature reaches 100～115 ℃, treat that temperature stops heating when reaching more than 120 ℃, material entered make its cool to room temperature in the cold mixer, again material is discharged in the material-storage jar c, the mixing material extruding pelletization.B cooling back material is carried out extruding pelletization with twin screw extruder, and processing temperature is 150～180 ℃, 10～25 rev/mins of screw speeds.Its weak point is in the rubber and plastic alloy, and PVC does not carry out expanded, and when plasticizing weak effect, can not extrude sizing material and use.

Summary of the invention

The objective of the invention is to overcome the deficiency of prior art, the rubber and plastic alloy glue and the production technique thereof that provide a kind of fuel hose to extrude usefulness, rubber and plastic alloy glue is extruded through the sizing material after the blend after, smooth surface and color sensation and good hand touch.

The present invention solves the problems of the technologies described above the technical scheme that is adopted:

A kind of rubber and plastic alloy glue is characterized in that:

Component during expanded PVC is as follows:

HS200 polyvinyl chloride 100 weight parts,

O-phthalic acid dibutyl ester 10 weight parts,

Disalt 1 weight part,

Three salt, 1.5 weight parts,

Calcium stearate 1 weight part,

Barium stearate 1 weight part;

Component when refining is opened in banburying is as follows:

Paracril 70 weight parts,

Expanded PVC polyvinyl chloride 30 weight parts,

Anti-aging agent 2.5 weight parts,

The production technique of rubber and plastic alloy glue is characterized in that comprising the steps: that PVC is expanded, Banbury mixer plasticizing, and the plasticizing of mill,

Component and technology were as follows when described PVC was expanded:

PVCHS200 100 weight parts,

O-phthalic acid dibutyl ester 10 weight parts,

Disalt 1 weight part,

Three salt, 1.5 weight parts,

Calcium stearate 1 weight part,

Barium stearate 1 weight part;

When expanded, the bulking machine temperature is set at 65～90 ℃, and the time is 5～7 minutes;

Component and technology were as follows when the refining plasticizing was opened in described banburying:

Paracril 70 weight parts,

Expanded PVC polyvinyl chloride 30 weight parts,

Anti-aging agent 2.5 weight parts,

The Banbury mixer temperature is risen to 110 ℃～130 ℃,

Drop into paracril, expanded PVC polyvinyl chloride, anti-aging agent,

After rising to 145 ℃, the Banbury mixer temperature opens water coolant,

The banburying temperature reaches 145 ℃～150 ℃, the time reach 15～20 minutes after discharging;

The mill temperature is heated to 120 ℃～130 ℃, and 1 ± 0.5mm is got in the mill roll spacing,

Then Banbury mixer is plastified glue and has put into the mill thin-pass two to three times,

After plastifying sizing material cooling after the mill thin-pass, together stackable.

Because the present invention adopted unique prescription and technology, make glue stuff compounding extrude that the back is smooth, inclusion-free (PVC particle), anti-ozone, high temperature resistant, low-temperature performance good.

Rubber and plastic alloy glue performance data of the present invention:

Acrylonitrile content %	34
		Ash %	0.6
100 ℃ of mooney viscosities (1+4)	84.3
		PVC content %	30
Tensile strength MPA	17.6
		Tensile yield %	33.2
Ozone 10^4*2H	Do not chap
		Hardness	81
Temperature limit of brittleness ℃	-35

Embodiment

Below in conjunction with embodiment the present invention is described in further detail.

Processing step of the present invention comprises that PVC is expanded, Banbury mixer plasticizing, and the plasticizing of mill,

Component and technology were as follows when PVC was expanded: will

50 kilograms of PVCHS200 polyvinyl chloride,

5 kilograms of o-phthalic acid dibutyl esters,

0.5 kilogram of disalt,

0.75 kilogram of three salt,

0.5 kilogram of calcium stearate,

0.5 kilogram of barium stearate adds bulking machine,

When expanded, the bulking machine temperature is set at 65～90 ℃, 5～7 minutes time.

Component and technology were as follows when refining was opened in banburying: will

35 kilograms of paracrils,

15 kilograms of expanded PVC polyvinyl chloride,

0.75 kilogram of 4010NA,

0.5 kilogram of NBC adds Banbury mixer,

The Banbury mixer temperature is risen to 130 ℃,

Drop into paracril, expanded PVC polyvinyl chloride, anti-aging agent.

After rising to 145 ℃, the Banbury mixer temperature opens water coolant,

The banburying temperature reaches 150 ℃, the time reach 15～20 minutes after discharging.

The mill temperature is heated to 110～130 ℃, and 1 ± 0.5mm is got in the mill roll spacing,

The glue that Banbury mixer is plastified is put into mill thin-pass secondary then,

After plasticizing sizing material cooling after the mill thin-pass, together stackable.

Claims (1)

1, a kind of rubber and plastic alloy glue,, Banbury mixer expanded by PVC plastifies and the plasticizing of mill makes:

Component and technology were as follows when described PVC was expanded:

With PVCHS200 polyvinyl chloride 100 weight parts, o-phthalic acid dibutyl ester 10 weight parts, disalt 1 weight part, three salt, 1.5 weight parts, calcium stearate 1 weight part, barium stearate 1 weight part adds bulking machine, when expanded, the bulking machine temperature is set at 65～90 ℃, and the time is 5～7 minutes;

Described banburying, open when plasticizing refining component and technology as follows:

The Banbury mixer temperature is risen to 110 ℃～130 ℃, with paracril 70 weight parts, expanded PVC polyvinyl chloride 30 weight parts, anti-aging agent 2.5 weight parts add Banbury mixer,

After rising to 145 ℃, the Banbury mixer temperature opens water coolant,

The banburying temperature reaches 145 ℃～150 ℃, the time reach 15～20 minutes after discharging;

The mill temperature is heated to 120 ℃～130 ℃, and 1 ± 0.5mm is got in the mill roll spacing, and the glue that Banbury mixer is plastified is put into the mill thin-pass two to three times then, and is after plastifying sizing material cooling after the mill thin-pass, together stackable.