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MPR/PVC (Polyvinyl Chloride) hot melt rubber material for high-performance easy-to-process automobile sealing part

A rubber material and hot-melt technology, which is applied in the field of synthetic processing of hot-melt rubber materials, can solve the problems of low tensile strength and elongation at break, difficulty in adapting processing technology equipment, and low product yield, etc., to achieve tensile strength And the elongation at break is large, the long-term compression deformation rate is low, and the effect of improving the flow index

Inactive Publication Date: 2017-09-01
宁波聚仁新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the MPR hot-melt rubber materials used in China are Advanced Polymer Its excellent mechanical and physical properties are widely used in automobile door and window seals; but its price is expensive; domestic processing technology and equipment are difficult to adapt to; the product yield is low; in addition, PVC materials are used for automobile door and window seals On the surface, there are defects such as no resistance to friction, poor fatigue resistance, narrow processing temperature range, extremely low resilience, low tensile strength and elongation at break.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high-performance and easy-to-process MPR / PVC hot-melt rubber material for automobile seals according to the present invention comprises the following components by mass: 100 parts of hot-melt rubber MPR, 100 parts of PVC resin, 28 parts of calcium carbonate, 25 parts of plasticizer, 1.5 parts of compatibilizer, 3 parts of stabilizer, 2 parts of processing aid, 0.3 part of toner, 0.1 part of ultraviolet absorber, 0.2 part of antioxidant, 0.2 part of lubricant.

[0023] As a further improvement, the calcium carbonate includes heavy calcium powder and light calcium powder, wherein the heavy calcium powder is heavy calcium carbonate with a particle size ≤ 10 μm after surface activation treatment, and the light calcium powder has a particle size ≤ 10 nm light calcium carbonate.

[0024] As a further improvement, the MPR of the hot-melt rubber is 2070, and the PVC resin is a suspension resin with a polymerization degree ≥ 2000.

[0025] Further improved, the plasticizer is...

Embodiment 2

[0034] A high-performance and easy-to-process MPR / PVC hot-melt rubber material for automobile seals according to the present invention comprises the following components by mass: 100 parts of hot-melt rubber MPR, 100 parts of PVC resin, 28 parts of calcium carbonate, 30 parts of plasticizer, 2.25 parts of compatibilizer, 4 parts of stabilizer, 3 parts of processing aid, 0.45 part of toner, 0.2 part of ultraviolet absorber, 0.35 part of antioxidant, and 0.25 part of lubricant.

[0035] As a further improvement, the calcium carbonate includes heavy calcium powder and light calcium powder, wherein the heavy calcium powder is heavy calcium carbonate with a particle size ≤ 10 μm after surface activation treatment, and the light calcium powder has a particle size ≤ 10 nm light calcium carbonate.

[0036] As a further improvement, the MPR of the hot-melt rubber is 2070, and the PVC resin is a suspension resin with a degree of polymerization ≥ 2000.

[0037] Further improved, the pla...

Embodiment 3

[0046] A high-performance and easy-to-process MPR / PVC hot-melt rubber material for automobile seals according to the present invention comprises the following components by mass: 100 parts of hot-melt rubber MPR, 100 parts of PVC resin, 28 parts of calcium carbonate, 35 parts of plasticizer, 3 parts of compatibilizer, 5 parts of stabilizer, 4 parts of processing aid, 0.6 part of toner, 0.3 part of ultraviolet absorber, 0.5 part of antioxidant, and 0.3 part of lubricant.

[0047] As a further improvement, the calcium carbonate includes heavy calcium powder and light calcium powder, wherein the heavy calcium powder is heavy calcium carbonate with a particle size ≤ 10 μm after surface activation treatment, and the light calcium powder has a particle size ≤ 10 nm light calcium carbonate.

[0048] As a further improvement, the MPR of the hot-melt rubber is 2070, and the PVC resin is a suspension resin with a polymerization degree ≥ 2000.

[0049] Further improved, the plasticizer ...

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Abstract

The invention discloses an MPR / PVC (Polyvinyl Chloride) hot melt rubber material for a high-performance easy-to-process automobile sealing part. The MPR / PVC hot melt rubber material is prepared from the following components in parts by mass: 100 parts of hot melt rubber MPR, 100 parts of PVC resin, 28 parts of calcium carbonate, 25 to 35 parts of plasticizer, 1.5 to 3 parts of compatibilizer, 3 to 5 parts of stabilizer, 2 to 4 parts of processing aid, 0.3 to 0.6 part of toner, 0.1 to 0.3 part of ultraviolet absorbent, 0.2 to 0.5 part of antioxidant, and 0.2 to 0.3 part of lubricating agent. By adopting the MPR / PVC hot melt rubber material, the advantages of the MPR and the PVC are combined, the defects of the MPR and the PVC are overcome fundamentally, and the cost of an MPR material is lowered; the flowing index of the PVC material is increased; moreover, the mold resistance, frictional wear resistance and fatigue resistance of the PVC are improved, so that the PVC material has the characteristics of superior weather resistance, ultraviolet resistance, ozone resistance and chemical resistance; the rebounding force of the MPR rubber material is enhanced, and the MPR rubber material has a low long-term compression deformation rate, high tensile strength and high elongation at break, and has shock resistance and a muting function on a product.

Description

technical field [0001] The invention relates to a high-performance and easy-to-process MPR / PVC hot-melt rubber material for automobile seals, belonging to the technical field of synthesis and processing of hot-melt rubber materials. Background technique [0002] Early rubber was latex taken from plants such as rubber trees and rubber grasses, which were processed into materials with elasticity, insulation, impermeability to water and air. High elastic polymer compound. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life. PVC material is polyvinyl chloride, which is one of the largest plastic products in the world. It is cheap and widely used. Polyvinyl chloride resin is white or light yellow powder, which cannot be used alone and must...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L21/00C08L91/00C08L9/02C08L33/04C08L91/06C08K13/06C08K9/00C08K3/26C08K5/12C08K5/11C08K3/04
CPCC08L27/06C08L21/00C08L2201/08C08L2205/035C08L91/00C08L9/02C08L33/04C08L91/06C08K13/06C08K9/00C08K3/26C08K5/12C08K5/11C08K3/04
Inventor 汤三
Owner 宁波聚仁新材料科技有限公司
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