Environmental protection type polyvinyl chloride composition

A polyvinyl chloride and composition technology, which is applied in the field of environment-friendly polyvinyl chloride compositions, can solve the problems of inability to meet environmental protection materials, performance degradation, etc., and achieve excellent long-term thermal stability, good physical properties, and long spiral flow length. Effect

Active Publication Date: 2009-10-14
广东顺威赛特工程塑料开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, due to the increasingly serious environmental pollution of lead stabilizers, and considering the safety of PVC, the sanitation of heat stabilizers has attracted people's attention. Due to the influence of factors such as environmental protection, the material is prone to degradation, resulting in a decline in performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First, 81.1kg of homopolyvinyl chloride, 2kg of epoxidized soybean oil obtained by epoxidizing a mixture of soybean oil, nail oil, sulfuric acid and benzene through hydrogen peroxide, 2kg of butyltin mercaptide, 0.6kg of calcium stearate, 0.6 kg polyethylene wax, 1.5kg acrylic acid ester copolymer ACR-201, 5kg methyl methacrylate-butadiene-styrene copolymer (MBS), 5kg poly-α-methylstyrene resin The mixture of modified magnesium aluminum silicate, 1.5kg pigment, 0.3kg ultraviolet absorber, 0.4kg polymer hindered phenol antioxidant and phosphite lipid antioxidant is put into a high-speed mixer and mixed in sequence. to 105-110°C, then cool and mix in a low-speed mixer, and after mixing to 40-45°C, use a conical twin-screw extruder to extrude and granulate at a temperature of 120-140°C to obtain the environmentally friendly poly Vinyl chloride composition. According to relevant tests, the melt flow index of the product of the present invention is 7g / 10min, the flexural st...

Embodiment 2

[0031] Firstly, 80.5kg homopolyvinyl chloride, 2kg epoxy soybean oil, 2kg butyltin mercaptide, 0.8kg calcium stearate, 1.0kg polyethylene wax, 1.5kg acrylate copolymer ACR-201, 5kg acrylic acid Dilute acid (ACR) impact modifier, 5kg magnesium aluminum silicate modified by poly-α-methylstyrene resin, 1.5kg pigment, 0.3kg ultraviolet absorber, 0.4kg polymer hindered phenol antioxidant Put the mixture of antioxidant and phosphite antioxidant into the high-speed mixer and mix in turn. The mixing temperature is 105-110°C, and then cool and mix in the low-speed mixer. After mixing to 40-45°C, extrude with conical twin-screw. The extruder is extruded and granulated at a temperature of 120-140° C. to obtain the environment-friendly polyvinyl chloride composition of the present invention. According to relevant tests, the melt flow index of the product of the present invention is 6.5g / 10min, the flexural strength is 67Mpa, the flexural modulus is 22500Mpa, the tensile strength is 47Mpa,...

Embodiment 3

[0033] First, 79.2kg homopolyvinyl chloride, 2kg epoxy soybean oil, 2kg butyltin mercaptide, 0.6kg calcium stearate, 0.8kg montan ester wax, 1.5kg acrylate copolymer ACR-201, 6kg formazan A mixture of methyl acrylate-butadiene-styrene copolymer (MBS) and chlorinated polyethylene (CPE) impact modifier, 6 kg of silicic acid modified by poly-α-methylstyrene resin The mixture of magnesium aluminum salt, 1.5kg pigment, 0.4kg polymer hindered phenol antioxidant and phosphite lipid antioxidant is put into a high-speed mixer and mixed in turn, and the mixing temperature is 105-110°C, and then mixed in a low-speed mixer Cooling and mixing to 40-45°C, extruding and granulating with a conical twin-screw extruder at a temperature of 120-140°C to obtain the environment-friendly polyvinyl chloride composition of the present invention. According to relevant tests, the melt flow index of the product of the present invention is 6.5g / 10min, the flexural strength is 68Mpa, the flexural modulus i...

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PUM

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Abstract

The invention discloses an environmental protection type polyvinyl chloride composition which comprises the following components according to the weight percentage: 70.3-89.4 of polyvinyl chloride, 1-3 of stabilizing agent, 1-3 of plasticizing agent, 0.4-2.0 of lubricating agent, 1-3 of modifying agent I, 3-7 of modifying agent II, 3-8 of modifying agent III, 1-3 of paint and 0.2-0.7 of assistant. Aims at overcoming the defects existing in the prior art, the invention provides the injection grade environmental protection type polyvinyl chloride composition which has good fluidity and physical property and satisfies the requirements for environmental protection and health.

Description

technical field [0001] The invention relates to a polyvinyl chloride composition, in particular to an environment-friendly polyvinyl chloride composition suitable for injection molding drinking water pipe parts. Background technique [0002] Polyvinyl chloride (PVC) has become one of the most commonly used resins because of its advantages of flame retardancy, weather resistance, corrosion resistance and chemical corrosion resistance. It is widely used in building materials, home appliances, automobiles, toys, packaging and other fields. Due to the special structure, the thermal stability, impact resistance, processing performance and environmental protection of polyvinyl chloride are poor. In practical applications, the system generally contains stabilizers, lubricants and other components. At present, the traditional stabilizer is lead stabilizer, because lead salt has good heat resistance, electrical insulation, weather resistance, and low price. However, in recent years,...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/06C08K5/1515C08K5/57C08K5/098C08K3/34C08K5/13C08K5/526B29B9/12B29C47/92B29C48/92
Inventor 王成望陶巍胡天赐
Owner 广东顺威赛特工程塑料开发有限公司
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