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High-elasticity environment-friendly PVC modified material and preparation method thereof

A technology of modified materials and elastic modifiers, applied in the field of highly elastic and environmentally friendly PVC modified materials and their preparation, which can solve problems such as human health hazards, poor thermal stability, and poor fluidity, and improve softness and low temperature resistance Good, the effect of improving liquidity

Active Publication Date: 2014-11-12
广东祺龙科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has light weight, high strength, insulation, flame retardancy, corrosion resistance, It has the advantages of excellent comprehensive performance, low price and wide source of raw materials; but it also has the following disadvantages: 1. Poor toughness, easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. Large, the lower limit of general PVC products is -15°C, and the lower limit of soft PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher than 150°C. The melting temperature of PVC is about 210°C; 3. The viscosity of PVC is extremely high and its fluidity is extremely poor, which limits its use to a certain extent.
[0006] The performance indicators of most of the existing PVC materials are only meeting the basic requirements of national standards, and the elasticity of the current PVC materials is not good, so the elasticity of the PVC materials needs to be further optimized and improved; in addition, the existing PVC sheath Cables, PVC plugs, PVC films and PVC pipes all have quite serious pollution, which will cause certain harm to human health. It is also particularly important to develop an environmentally friendly PVC modified material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A kind of highly elastic environment-friendly PVC modified material, comprises the raw material of following weight part:

[0057] PVC resin 80 parts

[0058] Filler 10 parts

[0059] 40 parts plasticizer

[0060] 2 parts heat stabilizer

[0061] Impact modifier 10 parts

[0062] Elastic modifier 15 parts

[0063] 1 part lubricant;

[0064] The plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8:1; the elastic modifier has a glass transition temperature of 80°C and a density of 1.04g / cm 3 The expanded polystyrene; The lubricant is a mixture of PE wax and pentaerythritol stearate with a weight ratio of 1.2:1; The PVC resin is a polymerization degree of 1000 and a density of 1.35g / cm 3 PVC resin; the filler is a particle size of 2nm, and through maleic anhydride grafted polyvinyl chloride treated nano-active calcium carbonate; the heat stabilizer is composed of main stabilizer, auxiliary stabilizer and auxiliary agent ...

Embodiment 2

[0070] A kind of highly elastic environment-friendly PVC modified material, comprises the raw material of following weight part:

[0071] PVC resin 90 parts

[0072] Filler 11 parts

[0073] 45 parts plasticizer

[0074] 3 parts heat stabilizer

[0075] Impact modifier 11 parts

[0076] Elastic modifier 20 parts

[0077] 1.2 parts of lubricant;

[0078] The plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil in a weight ratio of 8.5:1; the elastic modifier has a glass transition temperature of 82°C and a density of 1.05g / cm 3 The expanded polystyrene; The lubricant is a mixture of PE wax and pentaerythritol stearate in a weight ratio of 1.3:1; 3 PVC resin; the filler is particle size at 5nm, and through maleic anhydride grafted polyvinyl chloride treated nano-active calcium carbonate; the heat stabilizer is composed of main stabilizer, auxiliary stabilizer and auxiliary agent A mixture composed of a weight ratio of 25:5:1; the main heat stabilize...

Embodiment 3

[0084] A kind of highly elastic environment-friendly PVC modified material, comprises the raw material of following weight part:

[0085] PVC resin 100 parts

[0086] Filler 12 parts

[0087] Plasticizer 50 parts

[0088] Heat stabilizer 4 parts

[0089] Impact modifier 12 parts

[0090] Elastic modifier 25 parts

[0091] 1.5 parts of lubricant;

[0092] The plasticizer is a mixture of diisononyl phthalate and epoxidized soybean oil at a weight ratio of 9:1; the elastic modifier has a glass transition temperature of 85°C and a density of 1.06g / cm 3 The expanded polystyrene; The lubricant is a mixture of PE wax and pentaerythritol stearate in a weight ratio of 1.5:1; 3 PVC resin; the filler is a particle size of 10nm, and through maleic anhydride grafted polyvinyl chloride treated nano-active calcium carbonate; the heat stabilizer is composed of main stabilizer, auxiliary stabilizer and auxiliary agent A mixture composed of a weight ratio of 30:6:1; the main heat stabili...

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Abstract

The invention relates to the technical field of PVC modified materials, in particular to a high-elasticity environment-friendly PVC modified material and a preparation method of the high-elasticity environment-friendly PVC modified material. The high-elasticity environment-friendly PVC modified material comprises 80-120 parts of PVC resin, 10-15 parts of filler agents, 40-60 parts of plasticizers, 2-6 parts of heat stabilizers, 10-15 parts of impact modifiers and 15-35 parts of elasticity modifiers, wherein the plasticizers are a mixture composed of diisononyl phthalate and epoxidized soybean oil according to the weight ratio of 8-10:1, the elasticity modifiers are expanded polystyrene, the glass transition temperature of the expanded polystyrene ranges from 80 DEG C to 90 DEG C, and the density of the expanded polystyrene ranges from 1.04 g / cm<3> to 1.06 g / cm<3>. All properties of the prepared high-elasticity environment-friendly PVC modified material exceed national standards, elasticity is high, the maximum tensile strength is 24.6 MPa, and the maximum elongation at break is 567 percent, and the PVC modified material is environmentally friendly. The preparation method of the high-elasticity environment-friendly PVC modified material is simple in process, convenient to implement and control, stable in quality, high in production efficiency and applicable to large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of PVC modified materials, in particular to a highly elastic and environment-friendly PVC modified material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is one of the earliest industrialized and widely used general-purpose thermoplastics. It has the advantages of light weight, high strength, insulation, flame retardancy, corrosion resistance, excellent comprehensive performance, low price and wide source of raw materials; but also There are the following disadvantages: 1. The toughness is poor, and it is easy to be brittle when impacted, so it cannot be used as a structural material. In addition, the brittleness of polyvinyl chloride is greatly affected by temperature. The lower limit of general PVC products is -15°C. The lower limit of use of PVC is -30°C; 2. Poor thermal stability, it begins to decompose HCl at 100°C, and decomposes more rapidly when it is higher...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L25/06C08L53/02C08K13/06C08K9/04C08K3/26C08K5/12C08K5/1515C08K5/098C08K5/053B29C47/92B29C48/92
Inventor 宁建华胡小霞
Owner 广东祺龙科技有限公司
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