CN105218959A - Poly-third ethene and rubber hot melt copolymerization extruded sheet production technique - Google Patents

Abstract

The invention discloses a kind of poly-third ethene and rubber hot melt copolymerization extruded sheet production technique, comprise dried material, foamable, extrude, electrostatic applications and material packaging, adopt new hot melt copolymerization extrusion production technique, both materials are fused into a kind of product innovation, have both good physical concurrently simultaneously, liquid-crystalline glasses panel is not fragile in transportation, greatly reduce product fraction defective, decrease the loss of enterprise, human consumer uses also more convenient, production technique is also comparatively simple, continues to use traditional equipment, can not increase equipment cost and drop into.

Description

Poly-third ethene and rubber hot melt copolymerization extruded sheet production technique

Technical field

The present invention relates to plastic cement package and production technique field, particularly a kind of production technique adopting poly-third ethene and rubber hot melt copolymerization extruded sheet.

Background technology

Liquid-crystalline glasses panel surface is highly brittle, need to increase protection in logistics transportation process around its surface, just current, all packed by plastic cement and protect, and plastic cement packaging all adopts the poly-single material such as the third ethene or rubber to make, these materials have self physicals, the physicals of single material has certain limitation, such as hardness, thermotolerance, thermal conductivity etc., just because of the limitation of its physicals, liquid-crystalline glasses panel is caused often to occur damaging in transportation, cause product fraction defective very high, this is to manufacturing enterprise, logistics and human consumer are very disadvantageous, unnecessary loss is brought to enterprise, normally to produce and use brings very big inconvenience also can to human consumer.

Summary of the invention

In order to solve, the single limitation of above-mentioned prior art physicals is large, transport time produce that fragile fraction defective is high, enterprises' loss large, human consumer uses the problems such as inconvenient, the present invention adopts following technical scheme:

The invention provides one poly-third ethene and rubber hot melt copolymerization extruded sheet production technique, it is characterized in that:

Comprise following processing step: one) dried material first takes out a certain amount of poly-third ethene (PS) material master batch and rubber (TPE) material master batch, putting into stirrer respectively stirs dry, time of drying is 1h, time dry, temperature is 70-100 DEG C, and temperature required time dry relies on agitating friction heat temperature raising between stirrer conducting self-heating and material master batch;

Two) material master batch dried for step one is put into different forcing machine opening for feeds by foamable, material master batch enters the fusing of fusing case, the temperature of fusion of poly-third ethene (PS) is 180-210 DEG C, the temperature of fusion of rubber (TPE) is 160-180 DEG C, needs to add whipping agent when rubber (TPE) melts;

Three) machine equipment choosing screw extrusion press when extruding,

1, the screw speed of poly-third ethene (PS) is 50 circles/min, and rubber (TPE) screw speed is 45 circles/min,

2, use three running roller compacting thickness respectively, adjust the rotating ratio of three running roller press box gaps and three running rollers, ensure three running roller basic synchronization, middle rod temperature is 55-60 DEG C, and upper and lower rod temperature is 40-45 DEG C,

Four) electrostatic applications rubber rolling when step 3 is extruded evenly rolls up and down and is coated with electrostatic liquid on material; the material extruded after electrostatic applications enters oven cooking cycle drying; oven temperature is 120-150 DEG C; baking box length is 1 meter; baking time is about 4-5s; toasted rear material and gone out baking box, and then dried up cooling by two blower fans, drying up temperature fall time is 2-3s;

Five) width of material wrapping material is controlled by equipment cut edge, rolling afterwards, rolling, packaging of finally weighing warehouse-in.

As improvement of the present invention, the amount of adding whipping agent when the rubber (TPE) in step 2 melts is 3/1000ths of rubber total amount.

Beneficial effect of the present invention is: adopt new hot melt copolymerization extrusion production technique, both materials are fused into one new productproduct, have both good physical concurrently simultaneously, and liquid-crystalline glasses panel is not fragile in transportation, greatly reduce product fraction defective, decrease the loss of enterprise, human consumer uses also more convenient, production technique is also comparatively simple, continues to use traditional equipment, can not increase equipment cost and drop into.

Embodiment

The following detailed description of the preferred embodiments of the present invention;

A kind of poly-third ethene and rubber hot melt copolymerization extruded sheet production technique, it is characterized in that:

Comprise following processing step: one) dried material first takes out a certain amount of poly-third ethene (PS) material master batch and rubber (TPE) material master batch, putting into stirrer respectively stirs dry, time of drying is 1h, time dry, temperature is 70-100 DEG C, and temperature required time dry relies on agitating friction heat temperature raising between stirrer conducting self-heating and material master batch;

Two) material master batch dried for step one is put into different forcing machine opening for feeds by foamable, material master batch enters the fusing of fusing case, the temperature of fusion of poly-third ethene (PS) is 180-210 DEG C, the temperature of fusion of rubber (TPE) is 160-180 DEG C, needs to add whipping agent when rubber (TPE) melts;

Three) machine equipment choosing screw extrusion press when extruding,

1, the screw speed of poly-third ethene (PS) is 50 circles/min, and rubber (TPE) screw speed is 45 circles/min,

2, use three running roller compacting thickness respectively, adjust the rotating ratio of three running roller press box gaps and three running rollers, ensure three running roller basic synchronization, middle rod temperature is 55-60 DEG C, and upper and lower rod temperature is 40-45 DEG C,

Four) electrostatic applications rubber rolling when step 3 is extruded evenly rolls up and down and is coated with electrostatic liquid on material; the material extruded after electrostatic applications enters oven cooking cycle drying; oven temperature is 120-150 DEG C; baking box length is 1 meter; baking time is about 4-5s; toasted rear material and gone out baking box, and then dried up cooling by two blower fans, drying up temperature fall time is 2-3s;

Five) width of material wrapping material is controlled by equipment cut edge, rolling afterwards, rolling, packaging of finally weighing warehouse-in, the condition of master batch drying will be set time dry, this point is extremely important, as temperature, humidity, air pressure etc., foamable need set Heating temperature and the foamed time of material, the extrusion pressure that different spray gun is extruded and temperature is should be noted when extruding, the coating of liquid antistatic should be noted be evenly distributed and shaping after color distribution problem, by above-mentioned technique, both materials are fused into one new productproduct, have both good physical concurrently simultaneously, liquid-crystalline glasses panel is not fragile in transportation, greatly reduce product fraction defective, decrease the loss of enterprise, human consumer uses also more convenient, production technique is also comparatively simple, continue to use traditional equipment, equipment cost can not be increased drop into, and traditional plastic cement packaging all adopts the poly-single material such as the third ethene or rubber to make, these materials have self physicals, the physicals of single material has certain limitation, such as hardness, thermotolerance, thermal conductivity etc., just because of the limitation of its physicals, liquid-crystalline glasses panel is caused often to occur damaging in transportation, cause product fraction defective very high, this is to manufacturing enterprise, logistics and human consumer are very disadvantageous, unnecessary loss is brought to enterprise, normally to produce and use brings very big inconvenience also can to human consumer, can be addressed these problems by above-mentioned improvement.

In the present invention, the amount of adding whipping agent when the rubber (TPE) in step 2 melts is 3/1000ths of rubber total amount, can reduction finely tune during actually operating, by fine setting whipping agent, material yellowish can be controlled, more good-looking in the product appearance obtained like this, also save whipping agent simultaneously, save cost.

Above-described embodiment non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.

Claims (2)

1. poly-third ethene and a rubber hot melt copolymerization extruded sheet production technique, is characterized in that:

Comprise following processing step: one) dried material first takes out a certain amount of poly-third ethene (PS) material master batch and rubber (TPE) material master batch, putting into stirrer respectively stirs dry, time of drying is 1h, time dry, temperature is 70-100 DEG C, and temperature required time dry relies on agitating friction heat temperature raising between stirrer conducting self-heating and material master batch;

Two) material master batch dried for step one is put into different forcing machine opening for feeds by foamable, material master batch enters the fusing of fusing case, the temperature of fusion of poly-third ethene (PS) is 180-210 DEG C, the temperature of fusion of rubber (TPE) is 160-180 DEG C, needs to add whipping agent when rubber (TPE) melts;

Three) machine equipment choosing screw extrusion press when extruding,

1, the screw speed of poly-third ethene (PS) is 50 circles/min, and rubber (TPE) screw speed is 45 circles/min,

2, use three running roller compacting thickness respectively, adjust the rotating ratio of three running roller press box gaps and three running rollers, ensure three running roller basic synchronization, middle rod temperature is 55-60 DEG C, and upper and lower rod temperature is 40-45 DEG C,

Four) electrostatic applications rubber rolling when step 3 is extruded evenly rolls up and down and is coated with electrostatic liquid on material; the material extruded after electrostatic applications enters oven cooking cycle drying; oven temperature is 120-150 DEG C; baking box length is 1 meter; baking time is about 4-5s; toasted rear material and gone out baking box, and then dried up cooling by two blower fans, drying up temperature fall time is 2-3s;

Five) width of material wrapping material is controlled by equipment cut edge, rolling afterwards, rolling, packaging of finally weighing warehouse-in.

2. poly-third ethene according to claim 1 and rubber hot melt copolymerization extruded sheet production technique, is characterized in that: the amount of adding whipping agent when the rubber (TPE) in step 2 melts is 3/1000ths of rubber total amount.