Unlock instant, AI-driven research and patent intelligence for your innovation.

Cold-resistant and heat-resistant polyvinyl chloride composite material and preparation method thereof

A technology of polyvinyl chloride and composite materials, applied in the field of polyvinyl chloride, can solve the problems of physical property degradation, poor thermal stability, color deterioration, etc., achieve durable mechanical properties and heat resistance, and improve thermal stability , Improve the effect of cold resistance

Active Publication Date: 2021-07-30
浙江宏基道安科技股份有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, polyvinyl chloride also has some defects. The polyvinyl chloride material will quickly become brittle in a low temperature environment, and the product will not only become hard but also brittle. When subjected to external force, it is very easy to brittle
In addition, polyvinyl chloride materials have poor thermal stability. Under the environment of light and oxygen, the C=C double bond in the molecular structure of PVC, due to the increase in activity, leads to the generation of free radicals, which leads to the removal reaction. HCl is generated, and the generated HCl further catalyzes the degradation of polyvinyl chloride, causing its decomposition to intensify, making the color of the product worse, darker, and its physical properties reduced.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cold-resistant and heat-resistant polyvinyl chloride composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The cold-resistant and heat-resistant polyvinyl chloride composite material comprises the following components by weight:

[0024] 70 parts of polyvinyl chloride resin, 20 parts of polyurethane resin, 13 parts of modified nano calcium carbonate, 4 parts of butyl stearate, 2.5 parts of dioctyl phthalate, 2.5 parts of antioxidant 164.

[0025] The preparation method of modified calcium carbonate nanoparticles comprises the following steps:

[0026] Mix ethanol and water uniformly according to the volume ratio of 1:0.15 to obtain a mixed solution of ethanol and water, add γ-glycidyl etheroxypropyl trimethoxysilane to the mixed solution of ethanol and water, γ-glycidyl etheroxypropyl Trimethoxysilane accounts for 5% of the mass of the mixed solution of ethanol and water, stir and mix evenly, heat to 38 ° C, stir and hydrolyze for 28 minutes to obtain a hydrolyzate, add calcium carbonate nanoparticles to the hydrolyzate, calcium carbonate nanoparticles and hydrolyzate The m...

Embodiment 2

[0032] The cold-resistant and heat-resistant polyvinyl chloride composite material comprises the following components by weight:

[0033] 65 parts of polyvinyl chloride resin, 20 parts of polyurethane resin, 11 parts of modified nano-calcium carbonate, 3.5 parts of butyl stearate, 1.5 parts of dioctyl phthalate, and 1.5 parts of antioxidant 1076.

[0034] The preparation method of modified calcium carbonate nanoparticles comprises the following steps:

[0035] Mix ethanol and water uniformly according to the volume ratio of 1:0.15 to obtain a mixed solution of ethanol and water, add γ-glycidyl etheroxypropyl trimethoxysilane to the mixed solution of ethanol and water, γ-glycidyl etheroxypropyl Trimethoxysilane accounts for 5% of the mass of the mixed solution of ethanol and water, stir and mix evenly, heat to 32 ° C, stir and hydrolyze for 22 minutes to obtain a hydrolyzate, add calcium carbonate nanoparticles to the hydrolyzate, calcium carbonate nanoparticles and hydrolyzate...

Embodiment 3

[0041] The cold-resistant and heat-resistant polyvinyl chloride composite material comprises the following components by weight:

[0042] 60 parts of polyvinyl chloride resin, 15 parts of polyurethane resin, 15 parts of modified nano-calcium carbonate, 5 parts of butyl stearate, 1 part of dioctyl phthalate, and 1 part of antioxidant 1010.

[0043] The preparation method of modified calcium carbonate nanoparticles comprises the following steps:

[0044] Mix ethanol and water uniformly according to the volume ratio of 1:0.2 to obtain a mixed solution of ethanol and water, add γ-glycidyl etheroxypropyl trimethoxysilane to the mixed solution of ethanol and water, γ-glycidyl etheroxypropyl Trimethoxysilane accounts for 5% of the mass of the mixed solution of ethanol and water, stir and mix evenly, heat to 40°C, stir and hydrolyze for 30 minutes to obtain a hydrolyzate, add calcium carbonate nanoparticles to the hydrolyzate, calcium carbonate nanoparticles and hydrolyzate The mass-...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of polyvinyl chloride, and discloses a cold-resistant and heat-resistant polyvinyl chloride composite material and a preparation method thereof. The cold-resistant and heat-resistant polyvinyl chloride composite material comprises the following components in parts by weight: 60-80 parts of polyvinyl chloride resin, 15-30 parts of polyurethane resin, 10-15 parts of modified nano calcium carbonate, 3-5 parts of butyl stearate, 1-3 parts of dioctyl phthalate and 1-3 parts of an antioxidant. The preparation method comprises the following steps: adding the polyvinyl chloride resin, the polyurethane resin and the modified nano calcium carbonate into a high-speed stirrer, and stirring to obtain a premix; then adding butyl stearate, dioctyl phthalate and an antioxidant into the premix, and continuously stirring to obtain a blended material; and adding the blended material into a screw machine, and carrying out extrusion granulation to obtain the cold-resistant and heat-resistant polyvinyl chloride composite material. The polyvinyl chloride composite material prepared by the invention has good cold resistance and heat resistance at the same time.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride, in particular to a cold-resistant and heat-resistant polyvinyl chloride composite material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is the most widely used in the world today, and it is the first general-purpose thermoplastic material to be industrialized. According to statistics, the productivity of PVC materials in the world has exceeded 33.13 million tons in 2001. The current annual growth rate of PVC production capacity is The rate is still as high as 4%. PVC plastic has the advantages of low cost, short construction period, corrosion resistance, and good comprehensive performance. Its intensive production technology and close correlation with the chlor-alkali industry make PVC industry and automobile decoration, architectural membrane materials, petroleum industry and mechanical electronics. Industry and other pillar industries are ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L75/04C08K9/10C08K9/04C08K9/06C08K3/26C08K5/12C08K5/101
CPCC08L27/06C08K2003/265C08L2201/08C08L75/04C08K9/10C08K9/08C08K9/06C08K3/26C08K5/12C08K5/101Y02A40/25
Inventor 宋见定李治民李建鹏黄怀广汪檑恭应建梅
Owner 浙江宏基道安科技股份有限公司