A kind of insulating environment-friendly PVC modified material and preparation method thereof

Abstract

The invention relates to the technical field of PVC modified materials and particularly relates to an insulating and environment-friendly PVC modified material and a preparation method thereof. The insulating and environment-friendly PVC modified material contains the following raw materials: 80-120 parts of PVC resin, 40-60 parts of bulking agent, 40-60 parts of plasticizer, 10-15 parts of insulation modifier, 3-7 parts of heat stabilizer and 0.5-1.5 parts of lubricant, wherein the plasticizer is a mixture prepared from dioctyl terephthalate and tri-n-butyl citrate which are in the weight ratio of (5-7): 1; the insulation modifier is a mixture prepared from kaolin, titanium white and glass micro-beads which are in the weight ratio of (2-4): (1.5-2.5): 1, and the particle size of the glass micro-beads is smaller than 20 microns. According to the modified material prepared by the preparation method, all properties exceed the national standards, the insulating property is good, the resistivity reaches up to 5.1*10<14> omega, and the modified material is environment-friendly; the preparation method disclosed by the invention is simple in process, convenient in operation and control, stable in quality and high in production efficiency and can be applied to large-scale industrial production.

Description

technical field

[0001] The invention relates to the technical field of PVC modified materials, in particular to an insulating 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 th...

Examples

Embodiment 1

[0057] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0058] PVC resin 80 parts

[0059] Filling agent 40 parts

[0060] 40 parts plasticizer

[0061] Insulation modifier 10 parts

[0062] 3 parts heat stabilizer

[0063] Lubricant 0.5 parts

[0064] 5 parts of impact modifier;

[0065] The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 5:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 2:1.5:1 mixture, wherein the particle diameter of the glass microspheres is 11 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit content of 35%, the content of butadiene units is 25%, the content of styrene units is 40%; the PVC resin has a particle size of 0.1mm and an apparent density of 0.4g / cm 3 PVC resin; the filler is particle size at 20nm, and ...

Embodiment 2

[0071] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0072] PVC resin 90 parts

[0073] Filling agent 45 parts

[0074] 45 parts plasticizer

[0075] Insulation modifier 11 parts

[0076] Heat stabilizer 4 parts

[0077] Lubricant 0.8 parts

[0078] 8 parts of impact modifier;

[0079]The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 5.5:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 2.5:1.8:1 mixture, wherein the particle diameter of the glass beads is 13 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit content of 32.5%, the content of butadiene units is 22.5%, the content of styrene units is 45%; the PVC resin has a particle size of 0.12mm and an apparent density of 0.42g / cm 3 PVC resin; the filler is particle size at 50nm, an...

Embodiment 3

[0085] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0086] PVC resin 100 parts

[0087] Filler 50 parts

[0088] Plasticizer 50 parts

[0089] Insulation modifier 13 parts

[0090] Heat stabilizer 5 parts

[0091] Lubricant 1 part

[0092] 10 parts of impact modifier;

[0093] The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 6:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 3:2:1 mixture, wherein the particle diameter of the glass microspheres is 15 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit The content is 30%, the content of butadiene unit is 20%, and the content of styrene unit is 50%; the PVC resin has a particle size of 0.15mm and an apparent density of 0.45g / cm 3 PVC resin; the filler is a particle size of 100nm, and...

technical field

[0001] The invention relates to the technical field of PVC modified materials, in particular to an insulating 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 th...

Examples

Embodiment 1

[0057] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0058] PVC resin 80 parts

[0059] Filling agent 40 parts

[0060] 40 parts plasticizer

[0061] Insulation modifier 10 parts

[0062] 3 parts heat stabilizer

[0063] Lubricant 0.5 parts

[0064] 5 parts of impact modifier;

[0065] The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 5:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 2:1.5:1 mixture, wherein the particle diameter of the glass microspheres is 11 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit content of 35%, the content of butadiene units is 25%, the content of styrene units is 40%; the PVC resin has a particle size of 0.1mm and an apparent density of 0.4g / cm 3 PVC resin; the filler is particle size at 20nm, and ...

Embodiment 2

[0071] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0072] PVC resin 90 parts

[0073] Filling agent 45 parts

[0074] 45 parts plasticizer

[0075] Insulation modifier 11 parts

[0076] Heat stabilizer 4 parts

[0077] Lubricant 0.8 parts

[0078] 8 parts of impact modifier;

[0079]The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 5.5:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 2.5:1.8:1 mixture, wherein the particle diameter of the glass beads is 13 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit content of 32.5%, the content of butadiene units is 22.5%, the content of styrene units is 45%; the PVC resin has a particle size of 0.12mm and an apparent density of 0.42g / cm 3 PVC resin; the filler is particle size at 50nm, an...

Embodiment 3

[0085] An insulating and environmentally friendly PVC modified material, comprising the following raw materials in parts by weight:

[0086] PVC resin 100 parts

[0087] Filler 50 parts

[0088] Plasticizer 50 parts

[0089] Insulation modifier 13 parts

[0090] Heat stabilizer 5 parts

[0091] Lubricant 1 part

[0092] 10 parts of impact modifier;

[0093] The plasticizer is a mixture of dioctyl terephthalate and tri-n-butyl citrate in a weight ratio of 6:1; the insulation modifier is made of kaolin, titanium dioxide and glass microspheres in a weight ratio of 3:2:1 mixture, wherein the particle diameter of the glass microspheres is 15 μm; the impact modifier is an acrylonitrile-butadiene-styrene terpolymer, wherein the acrylonitrile unit The content is 30%, the content of butadiene unit is 20%, and the content of styrene unit is 50%; the PVC resin has a particle size of 0.15mm and an apparent density of 0.45g / cm 3 PVC resin; the filler is a particle size of 100nm, and...