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PVC foaming co-extrusion ASA glass fiber reinforcement technology

A process and glass fiber technology, applied in the field of PVC foam sheet extrusion, can solve the problems of easy shrinkage deformation, poor strength of PVC foam sheet, etc., and achieve the effects of good external dimensions, good weather resistance and stable products

Active Publication Date: 2019-06-14
ANHUI SENTAI WPC GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a PVC foam co-extrusion ASA glass fiber reinforced process, which can better solve the problems of poor strength, easy shrinkage and deformation of PVC foam boards, and can be widely used in harsh environments such as outdoors

Method used

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  • PVC foaming co-extrusion ASA glass fiber reinforcement technology
  • PVC foaming co-extrusion ASA glass fiber reinforcement technology
  • PVC foaming co-extrusion ASA glass fiber reinforcement technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Ingredients: according to the formula ingredients, the formula is composed of the following raw materials in parts by weight:

[0046]

[0047]

[0048] (2) Extrusion: Send the ingredients in step (1) into the extruder to extrude the whole body foaming base material; Zone 175°C, head heating 165°C, lip die temperature 170°C, die temperature 170°C, extruder screw speed controlled at 22r / min;

[0049] (3) cooling molding: the foamed base material obtained in step (2) is set to cool and form by being arranged on a cooling shaping die at 10 mm from the die;

[0050] (4) traction: the base material obtained in step (3) is drawn out with a tractor, the traction speed of the tractor is synchronous with the extruded profile, and the return speed of the tractor is 10m / min;

[0051] (5) Heating: Send the substrate obtained in step (4) into a heating box for heating, and the heating temperature is 90°C;

[0052] (6) Needle roller treatment: the substrate obtained in st...

Embodiment 2

[0056] (1) Ingredients: according to the formula ingredients, the formula is composed of the following raw materials in parts by weight:

[0057]

[0058]

[0059] (2) Extrusion: Send the ingredients in step (1) into the extruder to extrude the whole body foaming base material; Zone 185°C, head heating 175°C, lip die temperature 185°C, die temperature 185°C, extruder screw speed controlled at 32r / min;

[0060] (3) cooling forming: the foamed base material obtained in step (2) is set to cool and form by being arranged on a cooling shaping die at 200 mm from the die;

[0061] (4) traction: the base material obtained in step (3) is drawn out with a tractor, the traction speed of the tractor is synchronous with the extruded profile, and the return speed of the tractor is 40m / min;

[0062] (5) Heating: Send the base material obtained in step (4) into a heating box for heating, and the heating temperature is 100° C.;

[0063] (6) Needle roller treatment: the substrate obtain...

Embodiment 3

[0067] (1) Ingredients: according to the formula ingredients, the formula is composed of the following raw materials in parts by weight:

[0068]

[0069] (2) Extrusion: Send the ingredients in step (1) into the extruder to extrude the whole body foaming base material; Zone 180°C, head heating 170°C, lip die temperature 180°C, die temperature 175°C, extruder screw speed controlled at 26r / min;

[0070] (3) cooling forming: the foamed base material obtained in step (2) is set to cool and form by being arranged on a cooling shaping die at 100 mm from the die;

[0071] (4) traction: the base material obtained in step (3) is drawn out with a tractor, the traction speed of the tractor is synchronous with the extruded profile, and the return speed of the tractor is 20m / min;

[0072] (5) Heating: Send the base material obtained in step (4) into a heating box for heating, and the heating temperature is 80°C;

[0073] (6) Needle roller treatment: the substrate obtained in step (5) ...

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Abstract

The invention discloses a PVC foaming co-extrusion ASA glass fiber reinforcement technology, and relates to the technical field of PVC foaming plate extrusion. The technology comprises processes of material preparation, extrusion, cooling molding, traction, heating, needle roller treatment, co-extrusion ASA, traction and cutting and the like, and further comprises the process that heat conductionoil is used for heating a needle roller during needle roller treatment. The prepared finished product has relatively high bending strength and elasticity modulus, the problems that a traditional PVC profile is poor in strength and prone to shrinking and deforming and the like are solved, and the good market prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of PVC foam board extrusion, in particular to a PVC foam co-extrusion ASA glass fiber reinforcement process. Background technique [0002] PVC foam board is also called Chevron board and Andy board. Its chemical composition is polyvinyl chloride. According to the production process, PVC foam board can be divided into PVC co-extrusion foam board, PVC crust foam board and PVC free hair board. Foam board, the surface hardness of the three decreases in turn, and they are used in different fields. [0003] In recent years, my country's PVC foam extrusion products have developed rapidly, but limited by the formulation, process conditions, and equipment structure parameters of the extrusion foam process, the currently used PVC foam sheets mainly have poor strength and easy shrinkage deformation. And other problems, which limit the use of PVC foam boards in many special places. Contents of the invention [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/07B29C48/025C08L27/06C08K3/26C08J9/10
Inventor 唐道远唐圣卫
Owner ANHUI SENTAI WPC GRP CO LTD
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