Production method and formula of high-strength and high-toughness laminar film plastic

A technology of sheet-like film plastic and production method, applied in the field of plastic processing, can solve problems such as poor toughness and poor impact resistance, and achieve the effect of increasing impact strength and improving basic performance

Inactive Publication Date: 2015-08-26
WUXI AOMINGWEI ENVIRONMENTAL PROTECTION & ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are common defects at present, that i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The production method of the high-strength, high-toughness type sheet film plastic described in the embodiment of the present invention mainly consists of the following steps:

[0058] (1) At first, select the raw material of following parts by weight:

[0059] 165 parts of unsaturated resin;

[0060] 10 parts of toughening agent;

[0061] 15 parts vinyl resin;

[0062] 60 parts of low shrinkage additives;

[0063] 15 parts of diluent;

[0064] 3 parts of viscosity reducer;

[0065] 12 parts of internal release agent;

[0066] Thickener 4.2 parts

[0067] 2 parts of dispersant;

[0068] 1.3 parts of polymerization inhibitor part;

[0069] 400 parts of filler (calcium carbonate);

[0070] (2) According to the above raw materials to manufacture SMC paste experiment, after the experiment is qualified, enter the next step, if unqualified, readjust the formula;

[0071] (3) First mix the unsaturated resin and toughening agent in step (1) and raise the temperature t...

Embodiment 2

[0081] The production method of the high-strength, high-toughness type sheet film plastic described in the embodiment of the present invention mainly consists of the following steps:

[0082] (1) At first, select the raw material of following parts by weight:

[0083] 170 parts of unsaturated resin;

[0084] 10 parts of toughening agent;

[0085] 18 parts vinyl resin;

[0086] Low shrinkage additive - 55 parts;

[0087] Low shrinkage additive two 10 parts;

[0088] 12 parts of diluent;

[0089] 2.5 parts of viscosity reducer;

[0090] 12 parts of internal release agent;

[0091] Thickener 4.2 parts

[0092] 2 parts of dispersant;

[0093] UV 2 copies;

[0094] 1.3 parts of polymerization inhibitor;

[0095] 400 parts of filler (flame retardant);

[0096] (2) According to the above raw materials to manufacture SMC paste experiment, after the experiment is qualified, enter the next step, if unqualified, readjust the formula;

[0097] (3) First mix the unsaturated res...

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Abstract

The invention relates to a production method of a high-strength and high-toughness laminar film plastic. The production method is composed of the following steps: firstly, selecting raw materials, mixing an unsaturated resin with a flexibilizer first and increasing the temperature to 60 DEG C, continuously stirring at a speed of 300-500r/min for 15 minutes, after the flexibilizer and the unsaturated resin are mixed evenly and cooled, orderly adding a vinyl resin, a low shrinkage additive and a filler, stirring, and adding other accessories while stirring; by adopting an SMC forming machine and adopting a one-inch roller, carrying out No.1 short cutting at the rotating speed of 46rev/min and by adopting a two-inch roller, carrying out No.2 short cutting at the rotating speed of 46rev/min, and adopting a mixing pump at the rotating speed of 800rev/min. The production method has the beneficial effects that the basic properties of the SMC film plastic can be effectively improved, and the properties of a compression-molded SMC part in the aspects of tenacity and shock resistance can be greatly improved.

Description

technical field [0001] The invention relates to plastic processing technology, in particular to a production method and formula of high-strength and high-toughness sheet-like film plastics used in the fields of construction machinery, automobiles, buildings, environmental protection facilities, electric telecommunications and the like. Background technique [0002] Sheet Molding Compound (SMC) is a sheet of polyester resin, chopped glass fiber, filler and auxiliary materials wrapped with upper and lower plastic films. It is a semi-finished product of a wide range of molded composite materials. SMC has the advantages of superior electrical performance, corrosion resistance, light weight and easy and flexible engineering design. A wide range of applications, such as the following: [0003] Applications in the automotive industry: suspension parts, front and rear bumpers, instrument panels, etc.; body and body parts, hard shell roof, non-slip floor, spoiler, sun visor, engine ...

Claims

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Application Information

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IPC IPC(8): C08L101/02C08K13/04C08K7/14C08K3/26
Inventor 谢泽新
Owner WUXI AOMINGWEI ENVIRONMENTAL PROTECTION & ADVANCED MATERIALS CO LTD
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