PVC (polyvinyl chloride) foaming profile and preparation method thereof

A profile and foaming agent technology, applied in the field of PVC foam profiles and their preparation, can solve the problems of high energy consumption, weak corrosion resistance, irregular reinforcing ribs, etc.

Active Publication Date: 2017-08-11
湖南天仁科技实业发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese invention patent application with publication number CN105001555A discloses a PVC-M pipe with high impact resistance and aging resistance. This document discloses the use of raw materials such as PVC, light calcium carbonate, MBS, calcium sulfate whiskers, and carbon black. , the synergistic effect of 6-tert-butyl-p-propanol and ethanethiol to make aging-resistant PVC plastic products, but the preparation process of this technology is complicated to operate, and light calcium carbonate and calcium carbonate whiskers are used. In the middle, the current is high, the energy consumption is large, and the ribs formed by calcium carbonate are irregular
The Chinese invention patent application with the publication number 102010552A discloses a PVC/whisker calcium sulfate composite material and its preparation method. The composite material is made

Method used

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  • PVC (polyvinyl chloride) foaming profile and preparation method thereof
  • PVC (polyvinyl chloride) foaming profile and preparation method thereof
  • PVC (polyvinyl chloride) foaming profile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1－7

[0035] In terms of parts by weight, the formula composition of the new-type PVC biomass foamed profiles in Examples 1-7 of the present invention according to the serial number 1-7 is as follows:

[0036] Table 1

[0037]

Embodiment 1－3

[0038] Example 1-3 The process of producing the new PVC biomass foamed profile is as follows:

[0039] Step 1. Put the components in the table into the high-speed mixer and mix thoroughly at high speed, and the temperature reaches 110~120℃, then transfer the mixture from the high mixer to the low-speed cold mixing pot, and lower the temperature to 40~60℃ to get the mixture material;

[0040] Step 2, mixing and extruding the mixture in a counter-rotating conical twin-screw extruder;

[0041] Step 3: Pass the extruded material through a heating die (heating die temperature 165~180℃) and then pump negative pressure to cool and shape;

[0042] Step 4, the material after shaping and cooling is drawn and cut into a certain size product by the auxiliary machine. The working parameters of the counter-rotating conical twin-screw extruder in this embodiment are as follows: The processing temperature is 156°C in the first zone, 165°C in the second zone, 175°C in the third zone, 180°C in the fou...

Embodiment 4－7

[0047] The process of producing the new-type PVC biomass foamed profile in Examples 4-7 is as follows:

[0048] Step 1. Put the ingredients in the table into the high-speed mixer and mix thoroughly at high speed, and the temperature reaches 110-120℃, then transfer the mixture from the high-mixer to the low-speed cold mixing pot, and lower the temperature to 40-60℃ to obtain a mixture material;

[0049] Step 2, mixing and extruding the mixture in a counter-rotating conical twin-screw extruder;

[0050] Step 3: Pass the extruded material through the heating mold and then pump negative pressure to cool and shape;

[0051] Step 4, the material after shaping and cooling is drawn and cut into a certain size product by the auxiliary machine. The process parameters of the counter-rotating conical twin-screw extruder in this embodiment are as follows: the processing temperature is 156°C in the first zone, 165°C in the second zone, 175°C in the third zone, 180°C in the fourth zone, 153°C in th...

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Abstract

The invention relates to a composite, in particular to a PVC (polyvinyl chloride) biomass foaming composite and a preparation method thereof. The PVC biomass foaming composite is prepared from components of preparation raw materials in parts by weight as follows: 100 parts of PVC, 5-50 parts of PVC renewable materials, 5-30 parts of biomass powder, 50-130 parts of calcium sulfate, 5-12 parts of a stabilizer, 1-5 parts of a foaming agent, 2-18 parts of a foaming regulator, 0.6-3.5 parts of an internal lubricant, 0.6-3.5 parts of an external lubricant, 1.8-2.5 parts of a PVC processing aid and 0.6-2.5 parts of a coupling agent. By means of the formula, the filler content of a PVC foaming system can be increased by 20%-50%, the weight of the product per meter is basically unchanged, and the material has higher cost performance. With the adoption of technique principles of new materials, the PVC biomass foaming composite has creativity of new material application, has characteristics of resource utilization, energy conservation, environmental protection and green economy and is suitable for industrial production.

Description

Technical field [0001] The invention relates to a composite material, in particular to a PVC foam profile and a preparation method thereof. Background technique [0002] PVC wood plastic materials are environmentally friendly products, and the processing technology is very mature. Products with novel shapes and appearances can be designed through molds and co-extrusion methods, and the appearance is very close to wood, and some are even more beautiful than wood. The material can be recycled and reused, and brings good economic and social effects in terms of promoting resource recycling, energy saving and emission reduction, and sustainable economic development. However, the existing PVC wood-plastic materials still have disadvantages such as excessive production cost pressure, poor mechanical properties and weather resistance, poor corrosion resistance, and high energy consumption in production, which limit their application fields. my country is a country with large demand for ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L51/04C08L97/02C08K3/30C08J9/10
CPCC08J9/103C08J2203/04C08J2327/06C08J2427/06C08J2497/02C08L27/06C08L2203/14C08L2205/025C08L2205/035C08L2207/20C08L51/04C08L97/02C08K2003/3045
Inventor 彭梅醒苏胜培骆仁锋杨治任海波欧腾
Owner 湖南天仁科技实业发展有限公司
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