JPS6289768A - Molding compound - Google Patents

Abstract

PURPOSE:To obtain a molding compound capable of giving molded articles of high mechanical strength through injection molding, transfer molding, etc., by incorporating a thermosetting resin with glass material filler treated with a sizing agent containing both film-forming agent and specific lubricant. CONSTITUTION:The objective molding compound can be obtained by incorporating (A) 20-60pts.wt. of glass material filler treated with 0.1-5wt% of a sizing agent containing (i) 100pts.wt. of a film-forming agent, consisting pref. of either or both of urethane-modified polyester resin and urethane resin and (ii) 10-40 pts.wt. of a lubricant consisting of at least one kind of substance selected from polyethyleneimine of formula I (pref. with a polymerization degree n>=1,000), epoxy-modified silicone of formula II (pref. X=1-500, Y=1-500, R is 1-5C- alkylene) and imidazoline surfactant of formula III (pref. R' and R'' are each alkyl or alkenyl) in (B) 100pts.wt. of a thermosetting resin.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to thermosetting resin molding materials.

(Prior Art) The thermosetting resin molding material 1 is made of wood powder and a thermosetting resin such as phenol resin, melamine resin, urea resin, diallyl phthalate resin, or polyester resin.

Pulp, cotton waste, cloth chips,] - Dodoa asbestos mica,
Fillers such as diatomaceous earth, water, plasticizers such as furfural and aniline, accelerators such as lime, lubricants such as stearic acid and its salts, 2 colorants, and N-forming agents.

It is manufactured by adding modifiers, etc. and kneading it into powder or block form, and is used to mold products into predetermined shapes by injection molding, transfer molding, compression molding, etc.

(Problem to be solved by the invention) The resulting molded product has electrical properties of 9 mechanical properties.

Thermal properties are required, and although each property has been considerably improved, it cannot be said that the two mechanical properties, particularly mechanical strength, have been sufficiently improved depending on the application.

The present invention provides a molding material from which a molded article with improved mechanical strength can be obtained.

(Failure to solve the problem) The present invention is.

A. With thermosetting resin.

B. Film forming agent and polyethyleneimine.

A glass filler treated with a sizing agent containing at least one type of lubricant such as epoxy-modified silicone or imidazoline surfactant.

It is a molding material containing.

As the film forming agent of the sizing agent for treating the glass filler of the present invention, at least one of urethane-modified polyester resin and urethane resin is preferably used.

The urethane-modified polyester resin is a reaction product of a polyester resin having an isocyanate group at the end, for example, and a polyhydric alcohol compound having two or more hydroxyl groups, but particularly preferred is a polyester resin having an isocyanate end group and polyethylene glycol. (molecule 140
00 to 10,000).

Suitable urethane resins are aliphatic polyurethane resins, such as fatty h'f and polyesters.

It is a reaction product of aliphatic polyether and aliphatic isocyanate. Examples of aliphatic polyesters include adipic acid, sepatic acid, ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, 1.3-butane di-/trimethylolpropane, and trimethylolpropane. Examples of the aliphatic polyether include poppyrene glycol and polyethylene glycol. Examples of the aliphatic isocyanate include hexamethylene diisocyanate. These may be used alone or in combination.

Lubricants include polyethyleneimine, epoxy-modified silicone, and imidazoline surfactants.

At least one of these is used.

Poly-1-tyreneimine is represented by the general formula (1). Polymerization rfn=1000 or more is preferred.

Epoxy-modified silicone:1-one is represented by the general formula (2), and includes terminal glycidoxypropyl-polydimethylsiloquiline, terminal glycidoxypropyl-polymethylnoenylsiloxane, and terminal glycidoxypropyl-polymethylnoenylsiloxane. Examples include polyphenylsiloxane, polyglycidoxypropylmethyl-dimethylsiloxane copolymer, polyglycidoxypropylmethyl-methylphenylsiloxane copolymer, polyglycidoxypropylmethylsiloxane, and the like. Here, x=1-500 and y=1-500 are preferable.

R is preferably a fullkylene group having 1 to 5 carbon atoms.

The imidazoline surfactant is represented by the general formula (3),
For example, 2-lauryl-hydroxyethylimidazoline,
2-cetyl-hydroxyethylimidazoline, 2-stearyl-hydroxyethylimidazoline, 2-oleyl-hydroxyethylimidazoline, 2-hebutadecenyl-hydroxyethylimidazoline, 2-myristyl-hydroxyethylimidazoline, 2-oleyl-hydro dipropylimidazoline etc. are used. R-.

Ree is preferably an alkyl group or an alkenyl group.

These may be used alone or in mixtures.

R=C=N CH2 -CH2 R'' The blending amount is based on the opening of 100 types of film forming agent.

A lubricant of 10 to 40 layers is preferred.

In addition, coupling jllJ (at least one type of silane coupling agent, chromium coupling agent, titanium coupling agent, zircon coupling agent, etc.).

Formulation i is 1 to 2 parts by weight per 100 parts by weight of film forming agent.
0 parts by weight>, antistatic agents (ammonium chloride, lithium chloride, etc.), other film forming agents (epoxy resin, polyester resin, polyvinyl acetate resin, silicone resin, etc.)
is added.

When treating the glass filler with a sizing agent, the sizing agent is applied in an amount of 0.1 to 5% by weight relative to the glass filler.

As the glass filler, bead-like, powder-like, fiber-like, or cross-like glass fillers are used.

Thermosetting resins include phenolic resin, melamine resin, urea resin, and diallyl phthalate resin.

Polyester resin etc. are used.

Glass filler is 100@1 part of thermosetting resin,
20-60 parts by weight are used.

Others as necessary: wood flour, pulp, cotton shavings, cloth chips, etc.
Filling materials such as cord, asbestos, mica, and diatomaceous earth;
Water, plasticizers such as furfural and aniline 2 accelerators such as lime, Sua)! Lubricants such as phosphoric acid and its salts, coloring agents, 1
! Add other agents, fi-modifiers, etc.

Knead it and make it into a powder or block shape and use it as a molding material.

(Effect of the invention) Using the molding material of the present invention, injection molding, transfer 1-
1q of molded products with excellent mechanical strength through molding, compression molding, etc.
Rukoto can.

Claims (1)

[Claims] 1. Glass treated with a sizing agent containing A, a thermosetting resin, B, a film forming agent, and at least one lubricant selected from polyethyleneimine, epoxy-modified silicone, and imidazoline surfactant. A molding material containing a material filler, and a material filler.