PVC (polyvinyl chloride)-based wood plastic and preparation method thereof

A PVC resin and wood-plastic technology, applied in the field of PVC-based wood-plastic and its preparation, can solve problems such as environmental pollution and waste of raw materials, and achieve the effects of reduced production costs, good stability, and good mechanical properties

Inactive Publication Date: 2013-05-29
山西峰岩新型建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses specialized equipment called cone twin screw extruders (CST) for producing plastic products such as profiles or films. By mixing these materials at high temperatures, they can be made more stable without losing their shape over time due to less thermal energy released from other components inside them. Foam agents like this modified CSTR have low decomposable tem perature compared to conventional ones while still providing excellent foamed quality. These modifications make it easier to control how well the material flows through the machine's nozzles. Overall, this new method improves the efficiency and effectiveness of making plastic items by reducing costs and maintaining desired physical characteristics.

Problems solved by technology

The technical problem addressed by this patented technology relates to protecting forest land while recovering useful components such as wood pulp that could otherwise end up being discarded during timber production processes. Additionally, there may exist disposal issues associated with burning these residual parts due to their poor durability when exposed to weather conditions over time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A PVC-based wood-plastic, with the following raw materials in proportion by weight:

[0025] 40 parts of PVC resin, 12 parts of wood flour, 0.4 parts of polyethylene wax, 0.3 parts of processing aid ACR-401, 2 parts of modifier CPE-135A, 2 parts of calcium-zinc composite heat stabilizer, 0.3 parts of stearic acid, color 1 part powder, 0.4 parts foaming agent, 3 parts ACR-530, 10 parts light active calcium carbonate, 0.3 parts sodium bicarbonate.

[0026] The foaming agent is prepared from endothermic AC foaming agent AC-220 and exothermic AC foaming agent AC-100 in a ratio of 1:1 by weight.

[0027] A method for preparing PVC-based wood plastics, comprising the following steps: adding the PVC resin and wood powder into a high-speed mixer for thermal mixing, and when the mixing temperature of the materials reaches 80°C, adding the polyethylene wax and the processing aid ACR -401, modifier CPE-135A, calcium-zinc composite heat stabilizer, stearic acid, toner, foaming age...

Embodiment 2

[0029] A PVC-based wood-plastic, with the following raw materials in proportion by weight:

[0030] 45 parts of PVC resin, 10 parts of wood flour, 0.2 part of polyethylene wax, 0.5 part of processing aid ACR-401, 3 parts of modifier CPE-135A, 1.5 parts of calcium-zinc composite heat stabilizer, 0.4 part of calcium stearate, 2 parts of toner, 0.2 parts of foaming agent, 4 parts of ACR-530, 12 parts of light active calcium carbonate, 0.1 part of sodium bicarbonate.

[0031] The foaming agent is prepared from endothermic AC foaming agent AC-220 and exothermic AC foaming agent AC-100 in a ratio of 2:1 by weight.

[0032] A method for preparing PVC-based wood plastics, comprising the following steps: adding the PVC resin and wood powder into a high-speed mixer for thermal mixing, and when the mixing temperature of the materials reaches 80°C, adding the polyethylene wax and the processing aid ACR -401, modifier CPE-135A, calcium-zinc composite heat stabilizer, calcium stearate, ton...

Embodiment 3

[0034] A PVC-based wood-plastic, with the following raw materials in proportion by weight:

[0035] 50 parts of PVC resin, 15 parts of wood flour, 1 part of polyethylene wax, 1 part of processing aid ACR-401, 4 parts of modifier CPE-135A, 3 parts of calcium-zinc composite heat stabilizer, 0.6 part of calcium stearate, 3 parts of toner, 0.8 parts of foaming agent, 2 parts of ACR-530, 15 parts of light active calcium carbonate, 0.7 parts of sodium bicarbonate.

[0036] The foaming agent is prepared from endothermic AC foaming agent AC-220 and exothermic AC foaming agent AC-100 in a weight ratio of 3:1.

[0037] A method for preparing PVC-based wood-plastic, comprising the following steps: adding the PVC resin and wood powder into a high-speed mixer for hot mixing, and when the mixing temperature of the materials reaches 80°C, adding the polyethylene wax and the processing aid ACR -401, Modifier CPE-135A, Calcium Zinc Composite Heat Stabilizer, Calcium Stearate, Toner, Foaming A...

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PUM

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Abstract

The invention relates to PVC (polyvinyl chloride)-based wood plastic and a preparation method thereof, belonging to the technical field of plastic compound modification processing. The invention aims at providing PVC-based wood plastic and a preparation method thereof which can produce a PVC-based wood-plastic section with good mechanical property and stability. The technical scheme is as follows: the PVC-based wood plastic comprises the following raw materials in parts by weight: 40-60 parts of PVC resin, 10-20 parts of wood meal, 0.2-1 part of polyethylene wax, 0.3-1 part of processing aid ACR-401, 2-6 parts of modifier CPE-135A, 1.5-4.5 parts of PVC composite heat stabilizer, 0.3-0.7 part of external lubricant, 1-3 parts of toner, 0.2-1 part of foaming agent, 2-7 parts of foaming regulator, 10-18 parts of calcium carbonate and 0.1-0.7 part of sodium bicarbonate. The preparation method provided by the invention is suitable for the extrusion molding of PVC-based wood plastic.

Description

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Claims

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Application Information

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Owner 山西峰岩新型建材股份有限公司
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