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Preparation method of environment-friendly PVC core belt

A core belt, environmental protection technology, applied in the direction of chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of high cost, non-environmental protection, low efficiency, etc., and achieve good roller performance, environmental protection and low cost, The effect of shortening the process flow

Inactive Publication Date: 2022-01-21
YANGZHOU BAODA RUBBER & PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a method for preparing an environmentally friendly PVC core belt, which solves the problem of generally using dioctyl phthalate as the main plasticizer in the preparation process of the existing PVC core belt. It is not environmentally friendly, low in efficiency, high in cost, and requires secondary treatment on the surface of the PVC core belt to ensure its rolling performance and motion stability.

Method used

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  • Preparation method of environment-friendly PVC core belt
  • Preparation method of environment-friendly PVC core belt
  • Preparation method of environment-friendly PVC core belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1-3 Shown, the preparation method of a kind of environment-friendly PVC core tape that an embodiment of the present invention proposes comprises the following preparation steps:

[0026] S1. Making the core belt: the multi-layer core belt woven with twisted aramid yarn and polyester filament is interwoven into a dense base layer 1, and warp-knitted spacer fabrics are made through polyester monofilaments to form the upper and lower layers of the dense base layer. A spacer fabric layer 2 with a mesh structure 201 to obtain an integral base core belt;

[0027] S2. Raw material preparation: raw materials including the following parts by weight: 45 parts of PVC resin, 15 parts of polyethylene resin, 9 parts of acetyl tributyl citrate, 7 parts of dioctyl adipate, 5 parts of polyisocyanate, 7 parts of talcum powder, 10 parts of light calcium carbonate, 1 part of antioxidant DSTP and 1 part of calcium stearate;

[0028] S3, preparation of extrusion coating: ad...

Embodiment 2

[0031] Such as Figure 1-3 Shown, the preparation method of a kind of environment-friendly PVC core tape that an embodiment of the present invention proposes comprises the following preparation steps:

[0032] S1. Making the core belt: the multi-layer core belt woven with twisted aramid yarn and polyester filament is interwoven into a dense base layer 1, and warp-knitted spacer fabrics are made through polyester monofilaments to form the upper and lower layers of the dense base layer. A spacer fabric layer 2 with a mesh structure 201 to obtain an integral base core belt;

[0033] S2. Raw material preparation: raw materials including the following parts by weight: 70 parts of PVC resin, 8 parts of polyethylene resin, 5 parts of acetyl tributyl citrate, 5 parts of dioctyl adipate, 3 parts of polyisocyanate, 3 parts of talcum powder, 5 parts of light calcium carbonate, 0.5 part of antioxidant DSTP and 0.5 part of calcium stearate;

[0034] S3, preparation of extrusion coating: ...

Embodiment 3

[0037] Such as Figure 1-3 Shown, the preparation method of a kind of environment-friendly PVC core tape that an embodiment of the present invention proposes comprises the following preparation steps:

[0038] S1. Making the core belt: the multi-layer core belt woven with twisted aramid yarn and polyester filament is interwoven into a dense base layer 1, and warp-knitted spacer fabrics are made through polyester monofilaments to form the upper and lower layers of the dense base layer. A spacer fabric layer 2 with a mesh structure 201 to obtain an integral base core belt;

[0039] S2, raw material preparation: comprise the raw material of following weight part: PVC resin 58 parts, polyethylene resin 12 parts, acetyl tributyl citrate 7 parts, dioctyl adipate 6 parts, polyisocyanate 4 parts, talcum powder 4 parts, 8 parts of light calcium carbonate, 0.5 part of antioxidant and 0.5 part of lubricant;

[0040] S3, preparation of extrusion coating: add the preparatory materials in...

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Abstract

The invention belongs to the technical field of core belt preparation, and particularly relates to a preparation method of an environment-friendly PVC core belt, which comprises the following preparation steps of S1, preparing a core belt, S2, conducting material preparation, S3, preparing an extrusion covering material, and S4, preparing a whole core belt. The surface of the whole matrix core belt is covered with the molten PVC extrusion covering material, and the whole matrix core belt covered with the molten PVC extrusion covering material is subjected to calendering treatment through a calender with a calendering plate matched with the mesh structure of the surface of the whole matrix core belt. Acetyl tributyl citrate is used as a plasticizer instead of dioctyl phthalate, so that the prepared PVC core belt is more environment-friendly, spacer fabric layers with mesh structures are formed on the upper and lower surfaces of the solid substrate layer by adopting a warp-knitted spacer fabric method, and a specially-made calendering plate is matched for calendering, thePVC core belt with mesh rough surfaces on the upper and lower surfaces for easy roller passing is prepared. Compared with an existing core belt surface, the PVC core belt has better roller passing performance, a good moving track of the core belt can be kept, and the PVC core belt is not prone to deviation.

Description

technical field [0001] The invention relates to the technical field of core tape preparation, in particular to a preparation method of an environmentally friendly PVC core tape. Background technique [0002] PVC whole-core lifting belt is one of the main accessories of bucket elevators. It is suitable for continuous lifting and conveying of loose powdery, granular and small-block materials with a density of ≤1.8t / m3. The elevator uses the traction belt as the transmission component. can be selected. PVC whole core lifting belt can be widely used in various scales of belt elevators for grain, food, flour, oil, feed, and bulk materials in the chemical industry. [0003] Plasticizer is one of the important components to prepare PVC core belt. In the existing PVC core belt preparation process, it is generally used to add dioctyl phthalate as the main plasticizer, and dioctyl phthalate is used as the main plasticizer. It has the characteristics of flammable environmental hazard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08K5/11C08K3/34C08K3/26B32B27/34B32B27/36B32B27/12B32B27/30B32B27/02
CPCC08L27/06B32B5/02B32B5/26B32B27/12B32B27/304C08K2201/014C08K2003/265B32B2262/0261B32B2262/0276C08L23/06C08K5/11C08K3/34C08K3/26
Inventor 芦明石建
Owner YANGZHOU BAODA RUBBER & PLASTIC PROD
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